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-rw-r--r--src/Canvas.cpp4184
-rw-r--r--src/Port.cpp57
-rw-r--r--src/boilerplate.h43
-rw-r--r--src/box.c561
-rw-r--r--src/circle.c467
-rw-r--r--src/color.h63
-rw-r--r--src/edge.c786
-rw-r--r--src/fdgl.hpp166
-rw-r--r--src/ganv-marshal.list4
-rw-r--r--src/ganv-private.h403
-rw-r--r--src/ganv_bench.cpp178
-rw-r--r--src/ganv_test.c119
-rwxr-xr-xsrc/ganv_test.py22
-rw-r--r--src/gettext.h26
-rw-r--r--src/group.c446
-rw-r--r--src/item.c707
-rw-r--r--src/module.c859
-rw-r--r--src/node.c897
-rw-r--r--src/port.c735
-rw-r--r--src/text.c381
-rw-r--r--src/widget.c503
21 files changed, 0 insertions, 11607 deletions
diff --git a/src/Canvas.cpp b/src/Canvas.cpp
deleted file mode 100644
index 6a18cdc..0000000
--- a/src/Canvas.cpp
+++ /dev/null
@@ -1,4184 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2016 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* Parts based on GnomeCanvas, by Federico Mena <federico@nuclecu.unam.mx>
- * and Raph Levien <raph@gimp.org>
- * Copyright 1997-2000 Free Software Foundation
- */
-
-#define _POSIX_C_SOURCE 200809L // strdup
-#define _XOPEN_SOURCE 600 // isascii on BSD
-
-#include <math.h>
-#include <stdio.h>
-#include <string.h>
-
-#include <algorithm>
-#include <cassert>
-#include <cmath>
-#include <iostream>
-#include <map>
-#include <set>
-#include <sstream>
-#include <string>
-#include <vector>
-
-#include <cairo.h>
-#include <gdk/gdkkeysyms.h>
-#include <gtk/gtk.h>
-#include <gtk/gtkstyle.h>
-#include <gtkmm/widget.h>
-
-#include "ganv/Canvas.hpp"
-#include "ganv/Circle.hpp"
-#include "ganv/Edge.hpp"
-#include "ganv/Module.hpp"
-#include "ganv/Port.hpp"
-#include "ganv/box.h"
-#include "ganv/canvas.h"
-#include "ganv/edge.h"
-#include "ganv/group.h"
-#include "ganv/node.h"
-#include "ganv_config.h"
-
-#include "./color.h"
-#include "./ganv-marshal.h"
-#include "./ganv-private.h"
-#include "./gettext.h"
-
-#ifdef HAVE_AGRAPH
-// Deal with graphviz API amateur hour...
-# define _DLL_BLD 0
-# define _dll_import 0
-# define _BLD_cdt 0
-# define _PACKAGE_ast 0
-# include <gvc.h>
-#endif
-#ifdef GANV_FDGL
-# include "./fdgl.hpp"
-#endif
-
-#define CANVAS_IDLE_PRIORITY (GDK_PRIORITY_REDRAW - 5)
-
-static const double GANV_CANVAS_PAD = 8.0;
-
-typedef struct {
- int x;
- int y;
- int width;
- int height;
-} IRect;
-
-extern "C" {
-static void add_idle(GanvCanvas* canvas);
-static void ganv_canvas_destroy(GtkObject* object);
-static void ganv_canvas_map(GtkWidget* widget);
-static void ganv_canvas_unmap(GtkWidget* widget);
-static void ganv_canvas_realize(GtkWidget* widget);
-static void ganv_canvas_unrealize(GtkWidget* widget);
-static void ganv_canvas_size_allocate(GtkWidget* widget,
- GtkAllocation* allocation);
-static gint ganv_canvas_button(GtkWidget* widget,
- GdkEventButton* event);
-static gint ganv_canvas_motion(GtkWidget* widget,
- GdkEventMotion* event);
-static gint ganv_canvas_expose(GtkWidget* widget,
- GdkEventExpose* event);
-static gboolean ganv_canvas_key(GtkWidget* widget,
- GdkEventKey* event);
-static gboolean ganv_canvas_scroll(GtkWidget* widget,
- GdkEventScroll* event);
-static gint ganv_canvas_crossing(GtkWidget* widget,
- GdkEventCrossing* event);
-static gint ganv_canvas_focus_in(GtkWidget* widget,
- GdkEventFocus* event);
-static gint ganv_canvas_focus_out(GtkWidget* widget,
- GdkEventFocus* event);
-
-static GtkLayoutClass* canvas_parent_class;
-}
-
-static guint signal_connect;
-static guint signal_disconnect;
-
-static GEnumValue dir_values[3];
-
-typedef std::set<GanvNode*> Items;
-
-#define FOREACH_ITEM(items, i) \
- for (Items::const_iterator i = items.begin(); i != items.end(); ++i)
-
-#define FOREACH_ITEM_MUT(items, i) \
- for (Items::iterator i = items.begin(); i != items.end(); ++i)
-
-#define FOREACH_EDGE(edges, i) \
- for (GanvCanvasImpl::Edges::const_iterator i = edges.begin(); \
- i != edges.end(); \
- ++i)
-
-#define FOREACH_EDGE_MUT(edges, i) \
- for (GanvCanvasImpl::Edges::iterator i = edges.begin(); \
- i != edges.end(); \
- ++i)
-
-#define FOREACH_SELECTED_EDGE(edges, i) \
- for (GanvCanvasImpl::SelectedEdges::const_iterator i = edges.begin(); \
- i != edges.end(); \
- ++i)
-
-#define FOREACH_SELECTED_PORT(p) \
- for (SelectedPorts::iterator p = _selected_ports.begin(); \
- p != _selected_ports.end(); ++p)
-
-#ifdef HAVE_AGRAPH
-class GVNodes : public std::map<GanvNode*, Agnode_t*> {
-public:
- GVNodes() : gvc(0), G(0) {}
-
- void cleanup() {
- gvFreeLayout(gvc, G);
- agclose (G);
- gvc = 0;
- G = 0;
- }
-
- GVC_t* gvc;
- Agraph_t* G;
-};
-#endif
-
-static const uint32_t SELECT_RECT_FILL_COLOUR = 0x2E444577;
-static const uint32_t SELECT_RECT_BORDER_COLOUR = 0x2E4445FF;
-
-/* Order edges by (tail, head) */
-struct TailHeadOrder {
- inline bool operator()(const GanvEdge* a, const GanvEdge* b) const {
- return ((a->impl->tail < b->impl->tail)
- || (a->impl->tail == b->impl->tail
- && a->impl->head < b->impl->head));
- }
-};
-
-/* Order edges by (head, tail) */
-struct HeadTailOrder {
- inline bool operator()(const GanvEdge* a, const GanvEdge* b) const {
- return ((a->impl->head < b->impl->head)
- || (a->impl->head == b->impl->head
- && a->impl->tail < b->impl->tail));
- }
-};
-
-/* Callback used when the root item of a canvas is destroyed. The user should
- * never ever do this, so we panic if this happens.
- */
-static void
-panic_root_destroyed(GtkObject* object, gpointer data)
-{
- g_error("Eeeek, root item %p of canvas %p was destroyed!", (void*)object, data);
-}
-
-struct GanvCanvasImpl {
- GanvCanvasImpl(GanvCanvas* canvas)
- : _gcanvas(canvas)
- , _wrapper(NULL)
- , _connect_port(NULL)
- , _last_selected_port(NULL)
- , _drag_edge(NULL)
- , _drag_node(NULL)
- , _select_rect(NULL)
- , _select_start_x(0.0)
- , _select_start_y(0.0)
- , _drag_state(NOT_DRAGGING)
- {
- this->root = GANV_ITEM(g_object_new(ganv_group_get_type(), NULL));
- this->root->impl->canvas = canvas;
- g_object_ref_sink(this->root);
-
- this->direction = GANV_DIRECTION_RIGHT;
- this->width = 0;
- this->height = 0;
-
- this->redraw_region = NULL;
- this->current_item = NULL;
- this->new_current_item = NULL;
- this->grabbed_item = NULL;
- this->focused_item = NULL;
- this->pixmap_gc = NULL;
-
- this->pick_event.type = GDK_LEAVE_NOTIFY;
- this->pick_event.crossing.x = 0;
- this->pick_event.crossing.y = 0;
-
- this->scroll_x1 = 0.0;
- this->scroll_y1 = 0.0;
- this->scroll_x2 = canvas->layout.width;
- this->scroll_y2 = canvas->layout.height;
-
- this->pixels_per_unit = 1.0;
- this->font_size = ganv_canvas_get_default_font_size(canvas);
-
- this->idle_id = 0;
- this->root_destroy_id = g_signal_connect(
- this->root, "destroy", G_CALLBACK(panic_root_destroyed), canvas);
-
- this->redraw_x1 = 0;
- this->redraw_y1 = 0;
- this->redraw_x2 = 0;
- this->redraw_y2 = 0;
-
- this->draw_xofs = 0;
- this->draw_yofs = 0;
- this->zoom_xofs = 0;
- this->zoom_yofs = 0;
-
- this->state = 0;
- this->grabbed_event_mask = 0;
-
- this->center_scroll_region = FALSE;
- this->need_update = FALSE;
- this->need_redraw = FALSE;
- this->need_repick = TRUE;
- this->left_grabbed_item = FALSE;
- this->in_repick = FALSE;
- this->locked = FALSE;
- this->exporting = FALSE;
-
-#ifdef GANV_FDGL
- this->layout_idle_id = 0;
- this->layout_energy = 0.4;
- this->sprung_layout = FALSE;
-#endif
-
- _animate_idle_id = 0;
-
- _port_order.port_cmp = NULL;
- _port_order.data = NULL;
-
- gtk_layout_set_hadjustment(GTK_LAYOUT(canvas), NULL);
- gtk_layout_set_vadjustment(GTK_LAYOUT(canvas), NULL);
-
- _move_cursor = gdk_cursor_new(GDK_FLEUR);
- }
-
- ~GanvCanvasImpl()
- {
- if (_animate_idle_id) {
- g_source_remove(_animate_idle_id);
- _animate_idle_id = 0;
- }
-
- while (g_idle_remove_by_data(this)) {}
- ganv_canvas_clear(_gcanvas);
- gdk_cursor_unref(_move_cursor);
- }
-
- static gboolean on_animate_timeout(gpointer impl);
-
-#ifdef GANV_FDGL
- static gboolean on_layout_timeout(gpointer impl) {
- return ((GanvCanvasImpl*)impl)->layout_iteration();
- }
-
- static void on_layout_done(gpointer impl) {
- ((GanvCanvasImpl*)impl)->layout_idle_id = 0;
- }
-
- gboolean layout_iteration();
- gboolean layout_calculate(double dur, bool update);
-#endif
-
- void unselect_ports();
-
-#ifdef HAVE_AGRAPH
- GVNodes layout_dot(const std::string& filename);
-#endif
-
- typedef std::set<GanvEdge*, TailHeadOrder> Edges;
- typedef std::set<GanvEdge*, HeadTailOrder> DstEdges;
- typedef std::set<GanvEdge*> SelectedEdges;
- typedef std::set<GanvPort*> SelectedPorts;
-
- Edges::const_iterator first_edge_from(const GanvNode* src);
- DstEdges::const_iterator first_edge_to(const GanvNode* dst);
-
- void select_port(GanvPort* p, bool unique=false);
- void select_port_toggle(GanvPort* p, int mod_state);
- void unselect_port(GanvPort* p);
- void selection_joined_with(GanvPort* port);
- void join_selection();
-
- GanvNode* get_node_at(double x, double y);
-
- bool on_event(GdkEvent* event);
-
- bool scroll_drag_handler(GdkEvent* event);
- bool select_drag_handler(GdkEvent* event);
- bool connect_drag_handler(GdkEvent* event);
- void end_connect_drag();
-
- /*
- Event handler for ports.
-
- This must be implemented as a Canvas method since port event handling
- depends on shared data (for selection and connecting). This function
- should only be used by Port implementations.
- */
- bool port_event(GdkEvent* event, GanvPort* port);
-
- void ports_joined(GanvPort* port1, GanvPort* port2);
- void port_clicked(GdkEvent* event, GanvPort* port);
- void highlight_port(GanvPort* port, bool highlight);
-
- void move_contents_to_internal(double x, double y, double min_x, double min_y);
-
- GanvCanvas* _gcanvas;
- Ganv::Canvas* _wrapper;
-
- Items _items; ///< Items on this canvas
- Edges _edges; ///< Edges ordered (src, dst)
- DstEdges _dst_edges; ///< Edges ordered (dst, src)
- Items _selected_items; ///< Currently selected items
- SelectedEdges _selected_edges; ///< Currently selected edges
-
- SelectedPorts _selected_ports; ///< Selected ports (hilited red)
- GanvPort* _connect_port; ///< Port for which a edge is being made
- GanvPort* _last_selected_port;
- GanvEdge* _drag_edge;
- GanvNode* _drag_node;
-
- GanvBox* _select_rect; ///< Rectangle for drag selection
- double _select_start_x; ///< Selection drag start x coordinate
- double _select_start_y; ///< Selection drag start y coordinate
-
- enum DragState { NOT_DRAGGING, EDGE, SCROLL, SELECT };
- DragState _drag_state;
-
- GdkCursor* _move_cursor;
- guint _animate_idle_id;
-
- PortOrderCtx _port_order;
-
- /* Root canvas item */
- GanvItem* root;
-
- /* Flow direction */
- GanvDirection direction;
-
- /* Canvas width */
- double width;
-
- /* Canvas height */
- double height;
-
- /* Region that needs redrawing (list of rectangles) */
- GSList* redraw_region;
-
- /* The item containing the mouse pointer, or NULL if none */
- GanvItem* current_item;
-
- /* Item that is about to become current (used to track deletions and such) */
- GanvItem* new_current_item;
-
- /* Item that holds a pointer grab, or NULL if none */
- GanvItem* grabbed_item;
-
- /* If non-NULL, the currently focused item */
- GanvItem* focused_item;
-
- /* GC for temporary draw pixmap */
- GdkGC* pixmap_gc;
-
- /* Event on which selection of current item is based */
- GdkEvent pick_event;
-
- /* Scrolling region */
- double scroll_x1;
- double scroll_y1;
- double scroll_x2;
- double scroll_y2;
-
- /* Scaling factor to be used for display */
- double pixels_per_unit;
-
- /* Font size in points */
- double font_size;
-
- /* Idle handler ID */
- guint idle_id;
-
- /* Signal handler ID for destruction of the root item */
- guint root_destroy_id;
-
- /* Area that is being redrawn. Contains (x1, y1) but not (x2, y2).
- * Specified in canvas pixel coordinates.
- */
- int redraw_x1;
- int redraw_y1;
- int redraw_x2;
- int redraw_y2;
-
- /* Offsets of the temprary drawing pixmap */
- int draw_xofs;
- int draw_yofs;
-
- /* Internal pixel offsets when zoomed out */
- int zoom_xofs;
- int zoom_yofs;
-
- /* Last known modifier state, for deferred repick when a button is down */
- int state;
-
- /* Event mask specified when grabbing an item */
- guint grabbed_event_mask;
-
- /* Whether the canvas should center the scroll region in the middle of
- * the window if the scroll region is smaller than the window.
- */
- gboolean center_scroll_region;
-
- /* Whether items need update at next idle loop iteration */
- gboolean need_update;
-
- /* Whether the canvas needs redrawing at the next idle loop iteration */
- gboolean need_redraw;
-
- /* Whether current item will be repicked at next idle loop iteration */
- gboolean need_repick;
-
- /* For use by internal pick_current_item() function */
- gboolean left_grabbed_item;
-
- /* For use by internal pick_current_item() function */
- gboolean in_repick;
-
- /* Disable changes to canvas */
- gboolean locked;
-
- /* True if the current draw is an export */
- gboolean exporting;
-
-#ifdef GANV_FDGL
- guint layout_idle_id;
- gdouble layout_energy;
- gboolean sprung_layout;
-#endif
-};
-
-typedef struct {
- GanvItem item;
- GanvEdgePrivate* impl;
- GanvEdgePrivate impl_data;
-} GanvEdgeKey;
-
-static void
-make_edge_search_key(GanvEdgeKey* key,
- const GanvNode* tail,
- const GanvNode* head)
-{
- memset(key, '\0', sizeof(GanvEdgeKey));
- key->impl = &key->impl_data;
- key->impl->tail = const_cast<GanvNode*>(tail);
- key->impl->head = const_cast<GanvNode*>(head);
-}
-
-GanvCanvasImpl::Edges::const_iterator
-GanvCanvasImpl::first_edge_from(const GanvNode* tail)
-{
- GanvEdgeKey key;
- make_edge_search_key(&key, tail, NULL);
- return _edges.lower_bound((GanvEdge*)&key);
-}
-
-GanvCanvasImpl::DstEdges::const_iterator
-GanvCanvasImpl::first_edge_to(const GanvNode* head)
-{
- GanvEdgeKey key;
- make_edge_search_key(&key, NULL, head);
- return _dst_edges.lower_bound((GanvEdge*)&key);
-}
-
-static void
-select_if_tail_is_selected(GanvEdge* edge, void* data)
-{
- GanvNode* tail = edge->impl->tail;
- gboolean selected;
- g_object_get(tail, "selected", &selected, NULL);
- if (!selected && GANV_IS_PORT(tail)) {
- g_object_get(ganv_port_get_module(GANV_PORT(tail)),
- "selected", &selected, NULL);
- }
-
- if (selected) {
- ganv_edge_select(edge);
- }
-}
-
-static void
-select_if_head_is_selected(GanvEdge* edge, void* data)
-{
- GanvNode* head = edge->impl->head;
- gboolean selected;
- g_object_get(head, "selected", &selected, NULL);
- if (!selected && GANV_IS_PORT(head)) {
- g_object_get(ganv_port_get_module(GANV_PORT(head)),
- "selected", &selected, NULL);
- }
-
- if (selected) {
- ganv_edge_set_selected(edge, TRUE);
- }
-}
-
-static void
-select_edges(GanvPort* port, void* data)
-{
- GanvCanvasImpl* impl = (GanvCanvasImpl*)data;
- if (port->impl->is_input) {
- ganv_canvas_for_each_edge_to(impl->_gcanvas,
- GANV_NODE(port),
- select_if_tail_is_selected,
- NULL);
- } else {
- ganv_canvas_for_each_edge_from(impl->_gcanvas,
- GANV_NODE(port),
- select_if_head_is_selected,
- NULL);
- }
-}
-
-#ifdef HAVE_AGRAPH
-static void
-gv_set(void* subject, const char* key, double value)
-{
- std::ostringstream ss;
- ss << value;
- agsafeset(subject, (char*)key, (char*)ss.str().c_str(), (char*)"");
-}
-
-GVNodes
-GanvCanvasImpl::layout_dot(const std::string& filename)
-{
- GVNodes nodes;
-
- const double dpi = gdk_screen_get_resolution(gdk_screen_get_default());
-
- GVC_t* gvc = gvContext();
-
- Agraph_t* G = agopen((char*)"g", Agdirected, NULL);
-
- agsafeset(G, (char*)"splines", (char*)"false", (char*)"");
- agsafeset(G, (char*)"compound", (char*)"true", (char*)"");
- agsafeset(G, (char*)"remincross", (char*)"true", (char*)"");
- agsafeset(G, (char*)"overlap", (char*)"scale", (char*)"");
- agsafeset(G, (char*)"nodesep", (char*)"0.05", (char*)"");
- gv_set(G, "fontsize", ganv_canvas_get_font_size(_gcanvas));
- gv_set(G, "dpi", dpi);
-
- nodes.gvc = gvc;
- nodes.G = G;
-
- const bool flow_right = _gcanvas->impl->direction;
- if (flow_right) {
- agattr(G, AGRAPH, (char*)"rankdir", (char*)"LR");
- } else {
- agattr(G, AGRAPH, (char*)"rankdir", (char*)"TD");
- }
-
- unsigned id = 0;
- std::ostringstream ss;
- FOREACH_ITEM(_items, i) {
- ss.str("");
- ss << "n" << id++;
- const std::string node_id = ss.str();
-
- Agnode_t* node = agnode(G, strdup(node_id.c_str()), true);
- nodes.insert(std::make_pair(*i, node));
-
- if (GANV_IS_MODULE(*i)) {
- GanvModule* const m = GANV_MODULE(*i);
-
- agsafeset(node, (char*)"shape", (char*)"plaintext", (char*)"");
- gv_set(node, "width", ganv_box_get_width(GANV_BOX(*i)) / dpi);
- gv_set(node, "height", ganv_box_get_height(GANV_BOX(*i)) / dpi);
-
- std::string inputs; // Down flow
- std::string outputs; // Down flow
- std::string ports; // Right flow
- unsigned n_inputs = 0;
- unsigned n_outputs = 0;
- for (size_t i = 0; i < ganv_module_num_ports(m); ++i) {
- GanvPort* port = ganv_module_get_port(m, i);
- ss.str("");
- ss << port;
-
- if (port->impl->is_input) {
- ++n_inputs;
- } else {
- ++n_outputs;
- }
-
- std::string cell = std::string("<TD PORT=\"") + ss.str() + "\"";
-
- cell += " FIXEDSIZE=\"TRUE\"";
- ss.str("");
- ss << ganv_box_get_width(GANV_BOX(port));// / dpp * 1.3333333;
- cell += " WIDTH=\"" + ss.str() + "\"";
-
- ss.str("");
- ss << ganv_box_get_height(GANV_BOX(port));// / dpp * 1.333333;
- cell += " HEIGHT=\"" + ss.str() + "\"";
-
- cell += ">";
- const char* label = ganv_node_get_label(GANV_NODE(port));
- if (label && flow_right) {
- cell += label;
- }
- cell += "</TD>";
-
- if (flow_right) {
- ports += "<TR>" + cell + "</TR>";
- } else if (port->impl->is_input) {
- inputs += cell;
- } else {
- outputs += cell;
- }
-
- nodes.insert(std::make_pair(GANV_NODE(port), node));
- }
-
- const unsigned n_cols = std::max(n_inputs, n_outputs);
-
- std::string html = "<TABLE CELLPADDING=\"0\" CELLSPACING=\"0\">";
-
- // Input row (down flow only)
- if (!inputs.empty()) {
- for (unsigned i = n_inputs; i < n_cols + 1; ++i) {
- inputs += "<TD BORDER=\"0\"></TD>";
- }
- html += std::string("<TR>") + inputs + "</TR>";
- }
-
- // Label row
- std::stringstream colspan;
- colspan << (flow_right ? 1 : (n_cols + 1));
- html += std::string("<TR><TD BORDER=\"0\" CELLPADDING=\"2\" COLSPAN=\"")
- + colspan.str()
- + "\">";
- const char* label = ganv_node_get_label(GANV_NODE(m));
- if (label) {
- html += label;
- }
- html += "</TD></TR>";
-
- // Ports rows (right flow only)
- if (!ports.empty()) {
- html += ports;
- }
-
- // Output row (down flow only)
- if (!outputs.empty()) {
- for (unsigned i = n_outputs; i < n_cols + 1; ++i) {
- outputs += "<TD BORDER=\"0\"></TD>";
- }
- html += std::string("<TR>") + outputs + "</TR>";
- }
- html += "</TABLE>";
-
- char* html_label_str = agstrdup_html(G, (char*)html.c_str());
-
- agsafeset(node, (char*)"label", (char*)html_label_str, (char*)"");
- } else if (GANV_IS_CIRCLE(*i)) {
- agsafeset(node, (char*)"shape", (char*)"circle", (char*)"");
- agsafeset(node, (char*)"fixedsize", (char*)"true", (char*)"");
- agsafeset(node, (char*)"margin", (char*)"0.0,0.0", (char*)"");
-
- const double radius = ganv_circle_get_radius(GANV_CIRCLE(*i));
- const double penwidth = ganv_node_get_border_width(GANV_NODE(*i));
- const double span = (radius + penwidth) * 2.3 / dpi;
- gv_set(node, (char*)"width", span);
- gv_set(node, (char*)"height", span);
- gv_set(node, (char*)"penwidth", penwidth);
-
- if (ganv_node_get_dash_length(GANV_NODE(*i)) > 0.0) {
- agsafeset(node, (char*)"style", (char*)"dashed", (char*)"");
- }
-
- const char* label = ganv_node_get_label(GANV_NODE(*i));
- if (label) {
- agsafeset(node, (char*)"label", (char*)label, (char*)"");
- } else {
- agsafeset(node, (char*)"label", (char*)"", (char*)"");
- }
- } else {
- std::cerr << "Unable to arrange item of unknown type" << std::endl;
- }
- }
-
- FOREACH_EDGE(_edges, i) {
- const GanvEdge* const edge = *i;
- GVNodes::iterator tail_i = nodes.find(edge->impl->tail);
- GVNodes::iterator head_i = nodes.find(edge->impl->head);
-
- if (tail_i != nodes.end() && head_i != nodes.end()) {
- Agedge_t* e = agedge(G, tail_i->second, head_i->second, NULL, true);
- if (GANV_IS_PORT(edge->impl->tail)) {
- ss.str((char*)"");
- ss << edge->impl->tail << (flow_right ? ":e" : ":s");
- agsafeset(e, (char*)"tailport", (char*)ss.str().c_str(), (char*)"");
- }
- if (GANV_IS_PORT(edge->impl->head)) {
- ss.str((char*)"");
- ss << edge->impl->head << (flow_right ? ":w" : ":n");
- agsafeset(e, (char*)"headport", (char*)ss.str().c_str(), (char*)"");
- }
- if (!ganv_edge_get_constraining(edge)) {
- agsafeset(e, (char*)"constraint", (char*)"false", (char*)"");
- }
- } else {
- std::cerr << "Unable to find graphviz node" << std::endl;
- }
- }
-
- // Add edges between partners to have them lined up as if connected
- for (GVNodes::iterator i = nodes.begin(); i != nodes.end(); ++i) {
- GanvNode* partner = ganv_node_get_partner(i->first);
- if (partner) {
- GVNodes::iterator p = nodes.find(partner);
- if (p != nodes.end()) {
- Agedge_t* e = agedge(G, i->second, p->second, NULL, true);
- agsafeset(e, (char*)"style", (char*)"invis", (char*)"");
- }
- }
- }
-
- gvLayout(gvc, G, (char*)"dot");
- FILE* tmp = fopen("/dev/null", "w");
- gvRender(gvc, G, (char*)"dot", tmp);
- fclose(tmp);
-
- if (filename != "") {
- FILE* fd = fopen(filename.c_str(), "w");
- gvRender(gvc, G, (char*)"dot", fd);
- fclose(fd);
- }
-
- return nodes;
-}
-#endif
-
-inline uint64_t
-get_monotonic_time()
-{
-#if GLIB_CHECK_VERSION(2, 28, 0)
- return g_get_monotonic_time();
-#else
- GTimeVal time;
- g_get_current_time(&time);
- return time.tv_sec + time.tv_usec;
-#endif
-}
-
-#ifdef GANV_FDGL
-
-inline Region
-get_region(GanvNode* node)
-{
- GanvItem* item = &node->item;
-
- double x1, y1, x2, y2;
- ganv_item_get_bounds(item, &x1, &y1, &x2, &y2);
-
- Region reg;
- ganv_item_get_bounds(item, &reg.pos.x, &reg.pos.y, &reg.area.x, &reg.area.y);
- reg.area.x = x2 - x1;
- reg.area.y = y2 - y1;
- reg.pos.x = item->impl->x + (reg.area.x / 2.0);
- reg.pos.y = item->impl->y + (reg.area.y / 2.0);
-
- // No need for i2w here since we only care about top-level items
- return reg;
-}
-
-inline void
-apply_force(GanvNode* a, GanvNode* b, const Vector& f)
-{
- a->impl->force = vec_add(a->impl->force, f);
- b->impl->force = vec_sub(b->impl->force, f);
-}
-
-gboolean
-GanvCanvasImpl::layout_iteration()
-{
- if (_drag_state == EDGE) {
- return FALSE; // Canvas is locked, halt layout process
- } else if (!sprung_layout) {
- return FALSE; // We shouldn't be running at all
- }
-
- static const double T_PER_US = .0001; // Sym time per real microsecond
-
- static uint64_t prev = 0; // Previous iteration time
-
- const uint64_t now = get_monotonic_time();
- const double time_to_run = std::min((now - prev) * T_PER_US, 10.0);
-
- prev = now;
-
- const double QUANTUM = 0.05;
- double sym_time = 0.0;
- while (sym_time + QUANTUM < time_to_run) {
- if (!layout_calculate(QUANTUM, FALSE)) {
- break;
- }
- sym_time += QUANTUM;
- }
-
- return layout_calculate(QUANTUM, TRUE);
-}
-
-gboolean
-GanvCanvasImpl::layout_calculate(double dur, bool update)
-{
- // A light directional force to push sources to the top left
- static const double DIR_MAGNITUDE = -1000.0;
- Vector dir = { 0.0, 0.0 };
- switch (_gcanvas->impl->direction) {
- case GANV_DIRECTION_RIGHT: dir.x = DIR_MAGNITUDE; break;
- case GANV_DIRECTION_DOWN: dir.y = DIR_MAGNITUDE; break;
- }
-
- // Calculate attractive spring forces for edges
- FOREACH_EDGE(_edges, i) {
- const GanvEdge* const edge = *i;
- if (!ganv_edge_get_constraining(edge)) {
- continue;
- }
-
- GanvNode* tail = ganv_edge_get_tail(edge);
- GanvNode* head = ganv_edge_get_head(edge);
- if (GANV_IS_PORT(tail)) {
- tail = GANV_NODE(ganv_port_get_module(GANV_PORT(tail)));
- }
- if (GANV_IS_PORT(head)) {
- head = GANV_NODE(ganv_port_get_module(GANV_PORT(head)));
- }
- if (tail == head) {
- continue;
- }
-
- head->impl->connected = tail->impl->connected = TRUE;
-
- GanvEdgeCoords coords;
- ganv_edge_get_coords(edge, &coords);
-
- const Vector tpos = { coords.x1, coords.y1 };
- const Vector hpos = { coords.x2, coords.y2 };
- apply_force(tail, head, edge_force(dir, hpos, tpos));
- }
-
- // Calculate repelling forces between nodes
- FOREACH_ITEM(_items, i) {
- if (!GANV_IS_MODULE(*i) && !GANV_IS_CIRCLE(*i)) {
- continue;
- }
-
- GanvNode* const node = *i;
- GanvNode* partner = ganv_node_get_partner(node);
- if (!partner && !node->impl->connected) {
- continue;
- }
-
- const Region reg = get_region(node);
- if (partner) {
- // Add fake long spring to partner to line up as if connected
- const Region preg = get_region(partner);
- apply_force(node, partner, edge_force(dir, preg.pos, reg.pos));
- }
-
- /* Add tide force which pulls all objects as if the layout is happening
- on a flowing river surface. This prevents disconnected components
- from being ejected, since at some point the tide force will be
- greater than distant repelling charges. */
- const Vector mouth = { -100000.0, -100000.0 };
- node->impl->force = vec_add(
- node->impl->force,
- tide_force(mouth, reg.pos, 4000000000000.0));
-
- // Add slight noise to force to limit oscillation
- const Vector noise = { rand() / (float)RAND_MAX * 128.0,
- rand() / (float)RAND_MAX * 128.0 };
- node->impl->force = vec_add(noise, node->impl->force);
-
- FOREACH_ITEM(_items, j) {
- if (i == j || (!GANV_IS_MODULE(*i) && !GANV_IS_CIRCLE(*i))) {
- continue;
- }
- apply_force(node, *j, repel_force(reg, get_region(*j)));
- }
- }
-
- // Update positions based on calculated forces
- size_t n_moved = 0;
- FOREACH_ITEM(_items, i) {
- if (!GANV_IS_MODULE(*i) && !GANV_IS_CIRCLE(*i)) {
- continue;
- }
-
- GanvNode* const node = *i;
-
- if (node->impl->grabbed ||
- (!node->impl->connected && !ganv_node_get_partner(node))) {
- node->impl->vel.x = 0.0;
- node->impl->vel.y = 0.0;
- } else {
- node->impl->vel = vec_add(node->impl->vel,
- vec_mult(node->impl->force, dur));
- node->impl->vel = vec_mult(node->impl->vel, layout_energy);
-
- static const double MAX_VEL = 1000.0;
- static const double MIN_COORD = 4.0;
-
- // Clamp velocity
- const double vel_mag = vec_mag(node->impl->vel);
- if (vel_mag > MAX_VEL) {
- node->impl->vel = vec_mult(
- vec_mult(node->impl->vel, 1.0 / vel_mag),
- MAX_VEL);
- }
-
- // Update position
- GanvItem* item = &node->item;
- const double x0 = item->impl->x;
- const double y0 = item->impl->y;
- const Vector dpos = vec_mult(node->impl->vel, dur);
-
- item->impl->x = std::max(MIN_COORD, item->impl->x + dpos.x);
- item->impl->y = std::max(MIN_COORD, item->impl->y + dpos.y);
-
- if (update) {
- ganv_item_request_update(item);
- item->impl->canvas->impl->need_repick = TRUE;
- }
-
- if (lrint(x0) != lrint(item->impl->x) || lrint(y0) != lrint(item->impl->y)) {
- ++n_moved;
- }
- }
-
- // Reset forces for next time
- node->impl->force.x = 0.0;
- node->impl->force.y = 0.0;
- node->impl->connected = FALSE;
- }
-
- if (update) {
- // Now update edge positions to reflect new node positions
- FOREACH_EDGE(_edges, i) {
- GanvEdge* const edge = *i;
- ganv_edge_update_location(edge);
- }
- }
-
- layout_energy *= 0.999;
- return n_moved > 0;
-}
-
-#endif // GANV_FDGL
-
-void
-GanvCanvasImpl::select_port(GanvPort* p, bool unique)
-{
- if (unique) {
- unselect_ports();
- }
- g_object_set(G_OBJECT(p), "selected", TRUE, NULL);
- _selected_ports.insert(p);
- _last_selected_port = p;
-}
-
-void
-GanvCanvasImpl::select_port_toggle(GanvPort* port, int mod_state)
-{
- gboolean selected;
- g_object_get(G_OBJECT(port), "selected", &selected, NULL);
- if ((mod_state & GDK_CONTROL_MASK)) {
- if (selected)
- unselect_port(port);
- else
- select_port(port);
- } else if ((mod_state & GDK_SHIFT_MASK)) {
- GanvModule* const m = ganv_port_get_module(port);
- if (_last_selected_port && m
- && ganv_port_get_module(_last_selected_port) == m) {
- // Pivot around _last_selected_port in a single pass over module ports each click
- GanvPort* old_last_selected = _last_selected_port;
- GanvPort* first = NULL;
- bool done = false;
- for (size_t i = 0; i < ganv_module_num_ports(m); ++i) {
- GanvPort* const p = ganv_module_get_port(m, i);
- if (!first && !done && (p == _last_selected_port || p == port)) {
- first = p;
- }
-
- if (first && !done && p->impl->is_input == first->impl->is_input) {
- select_port(p, false);
- } else {
- unselect_port(p);
- }
-
- if (p != first && (p == old_last_selected || p == port)) {
- done = true;
- }
- }
- _last_selected_port = old_last_selected;
- } else {
- if (selected) {
- unselect_port(port);
- } else {
- select_port(port);
- }
- }
- } else {
- if (selected) {
- unselect_ports();
- } else {
- select_port(port, true);
- }
- }
-}
-
-void
-GanvCanvasImpl::unselect_port(GanvPort* p)
-{
- _selected_ports.erase(p);
- g_object_set(G_OBJECT(p), "selected", FALSE, NULL);
- if (_last_selected_port == p) {
- _last_selected_port = NULL;
- }
-}
-
-void
-GanvCanvasImpl::selection_joined_with(GanvPort* port)
-{
- FOREACH_SELECTED_PORT(i)
- ports_joined(*i, port);
-}
-
-void
-GanvCanvasImpl::join_selection()
-{
- std::vector<GanvPort*> inputs;
- std::vector<GanvPort*> outputs;
- FOREACH_SELECTED_PORT(i) {
- if ((*i)->impl->is_input) {
- inputs.push_back(*i);
- } else {
- outputs.push_back(*i);
- }
- }
-
- if (inputs.size() == 1) { // 1 -> n
- for (size_t i = 0; i < outputs.size(); ++i)
- ports_joined(inputs[0], outputs[i]);
- } else if (outputs.size() == 1) { // n -> 1
- for (size_t i = 0; i < inputs.size(); ++i)
- ports_joined(inputs[i], outputs[0]);
- } else { // n -> m
- size_t num_to_connect = std::min(inputs.size(), outputs.size());
- for (size_t i = 0; i < num_to_connect; ++i) {
- ports_joined(inputs[i], outputs[i]);
- }
- }
-}
-
-GanvNode*
-GanvCanvasImpl::get_node_at(double x, double y)
-{
- GanvItem* item = ganv_canvas_get_item_at(GANV_CANVAS(_gcanvas), x, y);
- while (item) {
- if (GANV_IS_NODE(item)) {
- return GANV_NODE(item);
- } else {
- item = item->impl->parent;
- }
- }
-
- return NULL;
-}
-
-bool
-GanvCanvasImpl::on_event(GdkEvent* event)
-{
- static const int scroll_increment = 10;
- int scroll_x, scroll_y;
-
- bool handled = false;
- switch (event->type) {
- case GDK_KEY_PRESS:
- handled = true;
- ganv_canvas_get_scroll_offsets(GANV_CANVAS(_gcanvas), &scroll_x, &scroll_y);
- switch (event->key.keyval) {
- case GDK_Up:
- scroll_y -= scroll_increment;
- break;
- case GDK_Down:
- scroll_y += scroll_increment;
- break;
- case GDK_Left:
- scroll_x -= scroll_increment;
- break;
- case GDK_Right:
- scroll_x += scroll_increment;
- break;
- case GDK_Return:
- if (_selected_ports.size() > 1) {
- join_selection();
- ganv_canvas_clear_selection(_gcanvas);
- }
- break;
- default:
- handled = false;
- }
- if (handled) {
- ganv_canvas_scroll_to(GANV_CANVAS(_gcanvas), scroll_x, scroll_y);
- return true;
- }
- break;
-
- case GDK_SCROLL:
- if ((event->scroll.state & GDK_CONTROL_MASK)) {
- const double zoom = ganv_canvas_get_zoom(_gcanvas);
- if (event->scroll.direction == GDK_SCROLL_UP) {
- ganv_canvas_set_zoom(_gcanvas, zoom * 1.25);
- return true;
- } else if (event->scroll.direction == GDK_SCROLL_DOWN) {
- ganv_canvas_set_zoom(_gcanvas, zoom * 0.75);
- return true;
- }
- }
- break;
-
- default:
- break;
- }
-
- return scroll_drag_handler(event)
- || select_drag_handler(event)
- || connect_drag_handler(event);
-}
-
-bool
-GanvCanvasImpl::scroll_drag_handler(GdkEvent* event)
-{
- bool handled = true;
-
- static int original_scroll_x = 0;
- static int original_scroll_y = 0;
- static double origin_x = 0;
- static double origin_y = 0;
- static double scroll_offset_x = 0;
- static double scroll_offset_y = 0;
- static double last_x = 0;
- static double last_y = 0;
-
- GanvItem* root = ganv_canvas_root(_gcanvas);
-
- if (event->type == GDK_BUTTON_PRESS && event->button.button == 2) {
- ganv_canvas_grab_item(
- root,
- GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
- NULL, event->button.time);
- ganv_canvas_get_scroll_offsets(GANV_CANVAS(_gcanvas), &original_scroll_x, &original_scroll_y);
- scroll_offset_x = 0;
- scroll_offset_y = 0;
- origin_x = event->button.x_root;
- origin_y = event->button.y_root;
- //cerr << "Origin: (" << origin_x << "," << origin_y << ")\n";
- last_x = origin_x;
- last_y = origin_y;
- _drag_state = SCROLL;
-
- } else if (event->type == GDK_MOTION_NOTIFY && _drag_state == SCROLL) {
- const double x = event->motion.x_root;
- const double y = event->motion.y_root;
- const double x_offset = last_x - x;
- const double y_offset = last_y - y;
-
- //cerr << "Coord: (" << x << "," << y << ")\n";
- //cerr << "Offset: (" << x_offset << "," << y_offset << ")\n";
-
- scroll_offset_x += x_offset;
- scroll_offset_y += y_offset;
- ganv_canvas_scroll_to(GANV_CANVAS(_gcanvas),
- lrint(original_scroll_x + scroll_offset_x),
- lrint(original_scroll_y + scroll_offset_y));
- last_x = x;
- last_y = y;
- } else if (event->type == GDK_BUTTON_RELEASE && _drag_state == SCROLL) {
- ganv_canvas_ungrab_item(root, event->button.time);
- _drag_state = NOT_DRAGGING;
- } else {
- handled = false;
- }
-
- return handled;
-}
-
-static void
-get_motion_coords(GdkEventMotion* motion, double* x, double* y)
-{
- if (motion->is_hint) {
- gint px;
- gint py;
- GdkModifierType state;
- gdk_window_get_pointer(motion->window, &px, &py, &state);
- *x = px;
- *y = py;
- } else {
- *x = motion->x;
- *y = motion->y;
- }
-}
-
-bool
-GanvCanvasImpl::select_drag_handler(GdkEvent* event)
-{
- GanvItem* root = ganv_canvas_root(_gcanvas);
- if (event->type == GDK_BUTTON_PRESS && event->button.button == 1) {
- assert(_select_rect == NULL);
- _drag_state = SELECT;
- if ( !(event->button.state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) )
- ganv_canvas_clear_selection(_gcanvas);
- _select_rect = GANV_BOX(
- ganv_item_new(
- root,
- ganv_box_get_type(),
- "x1", event->button.x,
- "y1", event->button.y,
- "x2", event->button.x,
- "y2", event->button.y,
- "fill-color", SELECT_RECT_FILL_COLOUR,
- "border-color", SELECT_RECT_BORDER_COLOUR,
- NULL));
- _select_start_x = event->button.x;
- _select_start_y = event->button.y;
- ganv_canvas_grab_item(
- root, GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
- NULL, event->button.time);
- return true;
- } else if (event->type == GDK_MOTION_NOTIFY && _drag_state == SELECT) {
- assert(_select_rect);
- double x, y;
- get_motion_coords(&event->motion, &x, &y);
- _select_rect->impl->coords.x1 = MIN(_select_start_x, x);
- _select_rect->impl->coords.y1 = MIN(_select_start_y, y);
- _select_rect->impl->coords.x2 = MAX(_select_start_x, x);
- _select_rect->impl->coords.y2 = MAX(_select_start_y, y);
- ganv_item_request_update(&_select_rect->node.item);
- return true;
- } else if (event->type == GDK_BUTTON_RELEASE && _drag_state == SELECT) {
- // Normalize select rect
- ganv_box_normalize(_select_rect);
-
- // Select all modules within rect
- FOREACH_ITEM(_items, i) {
- GanvNode* node = *i;
- if ((void*)node != (void*)_select_rect &&
- ganv_node_is_within(
- node,
- ganv_box_get_x1(_select_rect),
- ganv_box_get_y1(_select_rect),
- ganv_box_get_x2(_select_rect),
- ganv_box_get_y2(_select_rect))) {
- gboolean selected;
- g_object_get(G_OBJECT(node), "selected", &selected, NULL);
- if (selected) {
- ganv_canvas_unselect_node(_gcanvas, node);
- } else {
- ganv_canvas_select_node(_gcanvas, node);
- }
- }
- }
-
- // Select all edges with handles within rect
- FOREACH_EDGE(_edges, i) {
- if (ganv_edge_is_within(
- (*i),
- ganv_box_get_x1(_select_rect),
- ganv_box_get_y1(_select_rect),
- ganv_box_get_x2(_select_rect),
- ganv_box_get_y2(_select_rect))) {
- ganv_canvas_select_edge(_gcanvas, *i);
- }
- }
-
- ganv_canvas_ungrab_item(root, event->button.time);
-
- gtk_object_destroy(GTK_OBJECT(_select_rect));
- _select_rect = NULL;
- _drag_state = NOT_DRAGGING;
- return true;
- }
- return false;
-}
-
-bool
-GanvCanvasImpl::connect_drag_handler(GdkEvent* event)
-{
- static bool snapped = false;
-
- if (_drag_state != EDGE) {
- return false;
- }
-
- if (event->type == GDK_MOTION_NOTIFY) {
- double x, y;
- get_motion_coords(&event->motion, &x, &y);
-
- if (!_drag_edge) {
- // Create drag edge
- assert(!_drag_node);
- assert(_connect_port);
-
- _drag_node = GANV_NODE(
- ganv_item_new(
- GANV_ITEM(ganv_canvas_root(GANV_CANVAS(_gcanvas))),
- ganv_node_get_type(),
- "x", x,
- "y", y,
- NULL));
-
- _drag_edge = ganv_edge_new(
- _gcanvas,
- GANV_NODE(_connect_port),
- _drag_node,
- "color", GANV_NODE(_connect_port)->impl->fill_color,
- "curved", TRUE,
- "ghost", TRUE,
- NULL);
- }
-
- GanvNode* joinee = get_node_at(x, y);
- if (joinee && ganv_node_can_head(joinee) && joinee != _drag_node) {
- // Snap to item
- snapped = true;
- ganv_item_set(&_drag_edge->item, "head", joinee, NULL);
- } else if (snapped) {
- // Unsnap from item
- snapped = false;
- ganv_item_set(&_drag_edge->item, "head", _drag_node, NULL);
- }
-
- // Update drag edge for pointer position
- ganv_node_move_to(_drag_node, x, y);
- ganv_item_request_update(GANV_ITEM(_drag_node));
- ganv_item_request_update(GANV_ITEM(_drag_edge));
-
- return true;
-
- } else if (event->type == GDK_BUTTON_RELEASE) {
- ganv_canvas_ungrab_item(root, event->button.time);
-
- double x = event->button.x;
- double y = event->button.y;
-
- GanvNode* joinee = get_node_at(x, y);
-
- if (GANV_IS_PORT(joinee)) {
- if (joinee == GANV_NODE(_connect_port)) {
- // Drag ended on the same port it started on, port clicked
- if (_selected_ports.empty()) {
- // No selected ports, port clicked
- select_port(_connect_port);
- } else {
- // Connect to selected ports
- selection_joined_with(_connect_port);
- _connect_port = NULL;
- }
- } else { // drag ended on different port
- ports_joined(_connect_port, GANV_PORT(joinee));
- _connect_port = NULL;
- }
- }
-
- end_connect_drag();
- return true;
- }
-
- return false;
-}
-
-void
-GanvCanvasImpl::end_connect_drag()
-{
- if (_connect_port) {
- highlight_port(_connect_port, false);
- }
- gtk_object_destroy(GTK_OBJECT(_drag_edge));
- gtk_object_destroy(GTK_OBJECT(_drag_node));
- _drag_state = NOT_DRAGGING;
- _connect_port = NULL;
- _drag_edge = NULL;
- _drag_node = NULL;
-}
-
-bool
-GanvCanvasImpl::port_event(GdkEvent* event, GanvPort* port)
-{
- static bool port_pressed = true;
- static bool port_dragging = false;
- static bool control_dragging = false;
- static double control_start_x = 0;
- static double control_start_y = 0;
- static float control_start_value = 0;
-
- switch (event->type) {
- case GDK_BUTTON_PRESS:
- if (event->button.button == 1) {
- GanvModule* const module = ganv_port_get_module(port);
- double port_x = event->button.x;
- double port_y = event->button.y;
- ganv_item_w2i(GANV_ITEM(port), &port_x, &port_y);
-
- if (_selected_ports.empty() && module && port->impl->control &&
- (port->impl->is_input ||
- (port->impl->is_controllable &&
- port_x < ganv_box_get_width(GANV_BOX(port)) / 2.0))) {
- if (port->impl->control->is_toggle) {
- if (port->impl->control->value >= 0.5) {
- ganv_port_set_control_value_internal(port, 0.0);
- } else {
- ganv_port_set_control_value_internal(port, 1.0);
- }
- } else {
- control_dragging = port_pressed = true;
- control_start_x = event->button.x_root;
- control_start_y = event->button.y_root;
- control_start_value = ganv_port_get_control_value(port);
- ganv_canvas_grab_item(
- GANV_ITEM(port),
- GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
- NULL, event->button.time);
- GANV_NODE(port)->impl->grabbed = TRUE;
-
- }
- } else if (!port->impl->is_input) {
- port_dragging = port_pressed = true;
- ganv_canvas_grab_item(
- GANV_ITEM(port),
- GDK_BUTTON_RELEASE_MASK|GDK_POINTER_MOTION_MASK|
- GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK,
- NULL, event->button.time);
- } else {
- port_pressed = true;
- ganv_canvas_grab_item(GANV_ITEM(port),
- GDK_BUTTON_RELEASE_MASK,
- NULL, event->button.time);
- }
- return true;
- }
- break;
-
- case GDK_MOTION_NOTIFY:
- if (control_dragging) {
- const double mouse_x = event->button.x_root;
- const double mouse_y = event->button.y_root;
- GdkScreen* screen = gdk_screen_get_default();
- const int screen_width = gdk_screen_get_width(screen);
- const int screen_height = gdk_screen_get_height(screen);
- const double drag_dx = mouse_x - control_start_x;
- const double drag_dy = mouse_y - control_start_y;
- const double ythresh = 0.2; // Minimum y fraction for fine
-
- const double range_x = ((drag_dx > 0)
- ? (screen_width - control_start_x)
- : control_start_x) - GANV_CANVAS_PAD;
-
- const double range_y = ((drag_dy > 0)
- ? (screen_height - control_start_y)
- : control_start_y);
-
- const double dx = drag_dx / range_x;
- const double dy = fabs(drag_dy / range_y);
-
- const double value_range = (drag_dx > 0)
- ? port->impl->control->max - control_start_value
- : control_start_value - port->impl->control->min;
-
- const double sens = (dy < ythresh)
- ? 1.0
- : 1.0 - fabs(drag_dy / (range_y + ythresh));
-
- const double dvalue = (dx * value_range) * sens;
- double value = control_start_value + dvalue;
- if (value < port->impl->control->min) {
- value = port->impl->control->min;
- } else if (value > port->impl->control->max) {
- value = port->impl->control->max;
- }
- ganv_port_set_control_value_internal(port, value);
- return true;
- } else if (port_dragging) {
- return true;
- }
- break;
-
- case GDK_BUTTON_RELEASE:
- if (port_pressed) {
- ganv_canvas_ungrab_item(GANV_ITEM(port), event->button.time);
- }
-
- if (port_dragging) {
- if (_connect_port) { // dragging
- ports_joined(port, _connect_port);
- } else {
- port_clicked(event, port);
- }
- port_dragging = false;
- } else if (control_dragging) {
- control_dragging = false;
- GANV_NODE(port)->impl->grabbed = FALSE;
- if (event->button.x_root == control_start_x &&
- event->button.y_root == control_start_y) {
- select_port_toggle(port, event->button.state);
- }
- } else {
- port_clicked(event, port);
- }
- return true;
-
- case GDK_ENTER_NOTIFY:
- gboolean selected;
- g_object_get(G_OBJECT(port), "selected", &selected, NULL);
- if (!control_dragging && !selected) {
- highlight_port(port, true);
- return true;
- }
- break;
-
- case GDK_LEAVE_NOTIFY:
- if (port_dragging) {
- _drag_state = GanvCanvasImpl::EDGE;
- _connect_port = port;
- port_dragging = false;
- ganv_canvas_ungrab_item(GANV_ITEM(port), event->crossing.time);
- ganv_canvas_grab_item(
- root,
- GDK_BUTTON_PRESS_MASK|GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
- NULL, event->crossing.time);
- return true;
- } else if (!control_dragging) {
- highlight_port(port, false);
- return true;
- }
- break;
-
- default:
- break;
- }
-
- return false;
-}
-
-/* Called when two ports are 'joined' (connected or disconnected) */
-void
-GanvCanvasImpl::ports_joined(GanvPort* port1, GanvPort* port2)
-{
- if (port1 == port2 || !port1 || !port2 || !port1->impl || !port2->impl) {
- return;
- }
-
- highlight_port(port1, false);
- highlight_port(port2, false);
-
- GanvNode* src_node;
- GanvNode* dst_node;
-
- if (port2->impl->is_input && !port1->impl->is_input) {
- src_node = GANV_NODE(port1);
- dst_node = GANV_NODE(port2);
- } else if (!port2->impl->is_input && port1->impl->is_input) {
- src_node = GANV_NODE(port2);
- dst_node = GANV_NODE(port1);
- } else {
- return;
- }
-
- if (!ganv_canvas_get_edge(_gcanvas, src_node, dst_node)) {
- g_signal_emit(_gcanvas, signal_connect, 0,
- src_node, dst_node, NULL);
- } else {
- g_signal_emit(_gcanvas, signal_disconnect, 0,
- src_node, dst_node, NULL);
- }
-}
-
-void
-GanvCanvasImpl::port_clicked(GdkEvent* event, GanvPort* port)
-{
- const bool modded = event->button.state & (GDK_SHIFT_MASK|GDK_CONTROL_MASK);
- if (!modded && _last_selected_port &&
- _last_selected_port->impl->is_input != port->impl->is_input) {
- selection_joined_with(port);
- } else {
- select_port_toggle(port, event->button.state);
- }
-}
-
-void
-GanvCanvasImpl::highlight_port(GanvPort* port, bool highlight)
-{
- g_object_set(G_OBJECT(port), "highlighted", highlight, NULL);
- ganv_canvas_for_each_edge_on(_gcanvas,
- GANV_NODE(port),
- (highlight
- ? (GanvEdgeFunc)ganv_edge_highlight
- : (GanvEdgeFunc)ganv_edge_unhighlight),
- NULL);
-}
-
-/* Update animated "rubber band" selection effect. */
-gboolean
-GanvCanvasImpl::on_animate_timeout(gpointer data)
-{
- GanvCanvasImpl* impl = (GanvCanvasImpl*)data;
- if (!impl->pixmap_gc) {
- return FALSE; // Unrealized
- }
-
- const double seconds = get_monotonic_time() / 1000000.0;
-
- FOREACH_ITEM(impl->_selected_items, s) {
- ganv_node_tick(*s, seconds);
- }
-
- for (SelectedPorts::iterator p = impl->_selected_ports.begin();
- p != impl->_selected_ports.end();
- ++p) {
- ganv_node_tick(GANV_NODE(*p), seconds);
- }
-
- FOREACH_EDGE(impl->_selected_edges, c) {
- ganv_edge_tick(*c, seconds);
- }
-
- return TRUE;
-}
-
-void
-GanvCanvasImpl::move_contents_to_internal(double x, double y, double min_x, double min_y)
-{
- FOREACH_ITEM(_items, i) {
- ganv_node_move(*i,
- x - min_x,
- y - min_y);
- }
-}
-
-void
-GanvCanvasImpl::unselect_ports()
-{
- for (GanvCanvasImpl::SelectedPorts::iterator i = _selected_ports.begin();
- i != _selected_ports.end(); ++i)
- g_object_set(G_OBJECT(*i), "selected", FALSE, NULL);
-
- _selected_ports.clear();
- _last_selected_port = NULL;
-}
-
-namespace Ganv {
-
-static gboolean
-on_event_after(GanvItem* canvasitem,
- GdkEvent* ev,
- void* canvas)
-{
- return ((Canvas*)canvas)->signal_event.emit(ev);
-}
-
-static void
-on_connect(GanvCanvas* canvas, GanvNode* tail, GanvNode* head, void* data)
-{
- Canvas* canvasmm = (Canvas*)data;
- canvasmm->signal_connect.emit(Glib::wrap(tail), Glib::wrap(head));
-}
-
-static void
-on_disconnect(GanvCanvas* canvas, GanvNode* tail, GanvNode* head, void* data)
-{
- Canvas* canvasmm = (Canvas*)data;
- canvasmm->signal_disconnect.emit(Glib::wrap(tail), Glib::wrap(head));
-}
-
-Canvas::Canvas(double width, double height)
- : _gobj(GANV_CANVAS(ganv_canvas_new(width, height)))
-{
- ganv_canvas_set_wrapper(_gobj, this);
-
- g_signal_connect_after(ganv_canvas_root(_gobj), "event",
- G_CALLBACK(on_event_after), this);
- g_signal_connect(gobj(), "connect",
- G_CALLBACK(on_connect), this);
- g_signal_connect(gobj(), "disconnect",
- G_CALLBACK(on_disconnect), this);
-}
-
-Canvas::~Canvas()
-{
- delete _gobj->impl;
-}
-
-void
-Canvas::remove_edge_between(Node* item1, Node* item2)
-{
- GanvEdge* edge = ganv_canvas_get_edge(_gobj, item1->gobj(), item2->gobj());
- if (edge) {
- ganv_canvas_remove_edge(_gobj, edge);
- }
-}
-
-void
-Canvas::remove_edge(Edge* edge)
-{
- ganv_canvas_remove_edge(_gobj, edge->gobj());
-}
-
-Item*
-Canvas::get_item_at(double x, double y) const
-{
- GanvItem* item = ganv_canvas_get_item_at(_gobj, x, y);
- if (item) {
- return Glib::wrap(item);
- }
- return NULL;
-}
-
-Edge*
-Canvas::get_edge(Node* tail, Node* head) const
-{
- GanvEdge* e = ganv_canvas_get_edge(_gobj, tail->gobj(), head->gobj());
- if (e) {
- return Glib::wrap(e);
- }
- return NULL;
-}
-
-} // namespace Ganv
-
-extern "C" {
-
-#include "ganv/canvas.h"
-
-#include "./boilerplate.h"
-#include "./color.h"
-#include "./gettext.h"
-
-G_DEFINE_TYPE_WITH_CODE(GanvCanvas, ganv_canvas, GTK_TYPE_LAYOUT,
- G_ADD_PRIVATE(GanvCanvas))
-
-enum {
- PROP_0,
- PROP_WIDTH,
- PROP_HEIGHT,
- PROP_DIRECTION,
- PROP_FONT_SIZE,
- PROP_LOCKED,
- PROP_FOCUSED_ITEM
-};
-
-static gboolean
-on_canvas_event(GanvItem* canvasitem,
- GdkEvent* ev,
- void* impl)
-{
- return ((GanvCanvasImpl*)impl)->on_event(ev);
-}
-
-static void
-ganv_canvas_init(GanvCanvas* canvas)
-{
- GTK_WIDGET_SET_FLAGS(canvas, GTK_CAN_FOCUS);
-
- canvas->impl = new GanvCanvasImpl(canvas);
-
- g_signal_connect(G_OBJECT(ganv_canvas_root(canvas)),
- "event", G_CALLBACK(on_canvas_event), canvas->impl);
-}
-
-static void
-ganv_canvas_set_property(GObject* object,
- guint prop_id,
- const GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_CANVAS(object));
-
- GanvCanvas* canvas = GANV_CANVAS(object);
-
- switch (prop_id) {
- case PROP_WIDTH:
- ganv_canvas_resize(canvas, g_value_get_double(value), canvas->impl->height);
- break;
- case PROP_HEIGHT:
- ganv_canvas_resize(canvas, canvas->impl->width, g_value_get_double(value));
- break;
- case PROP_DIRECTION:
- ganv_canvas_set_direction(canvas, (GanvDirection)g_value_get_enum(value));
- break;
- case PROP_FONT_SIZE:
- ganv_canvas_set_font_size(canvas, g_value_get_double(value));
- break;
- case PROP_LOCKED:
- canvas->impl->locked = g_value_get_boolean(value);
- break;
- case PROP_FOCUSED_ITEM:
- canvas->impl->focused_item = GANV_ITEM(g_value_get_object(value));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_canvas_get_property(GObject* object,
- guint prop_id,
- GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_CANVAS(object));
-
- GanvCanvas* canvas = GANV_CANVAS(object);
-
- switch (prop_id) {
- GET_CASE(WIDTH, double, canvas->impl->width)
- GET_CASE(HEIGHT, double, canvas->impl->height)
- GET_CASE(LOCKED, boolean, canvas->impl->locked);
- case PROP_FOCUSED_ITEM:
- g_value_set_object(value, GANV_CANVAS(object)->impl->focused_item);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_canvas_class_init(GanvCanvasClass* klass)
-{
- GObjectClass* gobject_class = (GObjectClass*)klass;
- GtkObjectClass* object_class = (GtkObjectClass*)klass;
- GtkWidgetClass* widget_class = (GtkWidgetClass*)klass;
-
- canvas_parent_class = GTK_LAYOUT_CLASS(g_type_class_peek_parent(klass));
-
- gobject_class->set_property = ganv_canvas_set_property;
- gobject_class->get_property = ganv_canvas_get_property;
-
- object_class->destroy = ganv_canvas_destroy;
-
- widget_class->map = ganv_canvas_map;
- widget_class->unmap = ganv_canvas_unmap;
- widget_class->realize = ganv_canvas_realize;
- widget_class->unrealize = ganv_canvas_unrealize;
- widget_class->size_allocate = ganv_canvas_size_allocate;
- widget_class->button_press_event = ganv_canvas_button;
- widget_class->button_release_event = ganv_canvas_button;
- widget_class->motion_notify_event = ganv_canvas_motion;
- widget_class->expose_event = ganv_canvas_expose;
- widget_class->key_press_event = ganv_canvas_key;
- widget_class->key_release_event = ganv_canvas_key;
- widget_class->enter_notify_event = ganv_canvas_crossing;
- widget_class->leave_notify_event = ganv_canvas_crossing;
- widget_class->focus_in_event = ganv_canvas_focus_in;
- widget_class->focus_out_event = ganv_canvas_focus_out;
- widget_class->scroll_event = ganv_canvas_scroll;
-
- g_object_class_install_property(
- gobject_class, PROP_FOCUSED_ITEM, g_param_spec_object(
- "focused-item",
- _("Focused item"),
- _("The item that currently has keyboard focus."),
- GANV_TYPE_ITEM,
- (GParamFlags)(G_PARAM_READABLE | G_PARAM_WRITABLE)));
-
- g_object_class_install_property(
- gobject_class, PROP_WIDTH, g_param_spec_double(
- "width",
- _("Width"),
- _("The width of the canvas."),
- 0.0, G_MAXDOUBLE,
- 800.0,
- (GParamFlags)G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_HEIGHT, g_param_spec_double(
- "height",
- _("Height"),
- _("The height of the canvas"),
- 0.0, G_MAXDOUBLE,
- 600.0,
- (GParamFlags)G_PARAM_READWRITE));
-
- GEnumValue down_dir = { GANV_DIRECTION_DOWN, "down", "down" };
- GEnumValue right_dir = { GANV_DIRECTION_RIGHT, "right", "right" };
- GEnumValue null_dir = { 0, 0, 0 };
- dir_values[0] = down_dir;
- dir_values[1] = right_dir;
- dir_values[2] = null_dir;
- GType dir_type = g_enum_register_static("GanvDirection",
- dir_values);
-
- g_object_class_install_property(
- gobject_class, PROP_DIRECTION, g_param_spec_enum(
- "direction",
- _("Direction"),
- _("The direction of the signal flow on the canvas."),
- dir_type,
- GANV_DIRECTION_RIGHT,
- (GParamFlags)G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_FONT_SIZE, g_param_spec_double(
- "font-size",
- _("Font size"),
- _("The default font size for the canvas"),
- 0.0, G_MAXDOUBLE,
- 12.0,
- (GParamFlags)G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_LOCKED, g_param_spec_boolean(
- "locked",
- _("Locked"),
- _("If true, nodes on the canvas can not be moved by the user."),
- FALSE,
- (GParamFlags)G_PARAM_READWRITE));
-
- signal_connect = g_signal_new("connect",
- ganv_canvas_get_type(),
- G_SIGNAL_RUN_FIRST,
- 0, NULL, NULL,
- ganv_marshal_VOID__OBJECT_OBJECT,
- G_TYPE_NONE,
- 2,
- ganv_node_get_type(),
- ganv_node_get_type(),
- 0);
-
- signal_disconnect = g_signal_new("disconnect",
- ganv_canvas_get_type(),
- G_SIGNAL_RUN_FIRST,
- 0, NULL, NULL,
- ganv_marshal_VOID__OBJECT_OBJECT,
- G_TYPE_NONE,
- 2,
- ganv_node_get_type(),
- ganv_node_get_type(),
- 0);
-}
-
-void
-ganv_canvas_resize(GanvCanvas* canvas, double width, double height)
-{
- if (width != canvas->impl->width || height != canvas->impl->height) {
- canvas->impl->width = width;
- canvas->impl->height = height;
- ganv_canvas_set_scroll_region(canvas, 0.0, 0.0, width, height);
- }
-}
-
-void
-ganv_canvas_contents_changed(GanvCanvas* canvas)
-{
-#ifdef GANV_FDGL
- if (!canvas->impl->layout_idle_id && canvas->impl->sprung_layout) {
- canvas->impl->layout_energy = 0.4;
- canvas->impl->layout_idle_id = g_timeout_add_full(
- G_PRIORITY_DEFAULT_IDLE,
- 33,
- GanvCanvasImpl::on_layout_timeout,
- canvas->impl,
- GanvCanvasImpl::on_layout_done);
- }
-#endif
-}
-
-double
-ganv_canvas_get_default_font_size(const GanvCanvas* canvas)
-{
- GtkStyle* style = gtk_rc_get_style(GTK_WIDGET(canvas));
- const PangoFontDescription* font = style->font_desc;
- return pango_font_description_get_size(font) / (double)PANGO_SCALE;
-}
-
-double
-ganv_canvas_get_font_size(const GanvCanvas* canvas)
-{
- return canvas->impl->font_size;
-}
-
-void
-ganv_canvas_set_zoom(GanvCanvas* canvas, double zoom)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- zoom = std::max(zoom, 0.01);
- if (zoom == canvas->impl->pixels_per_unit) {
- return;
- }
-
- const int anchor_x = (canvas->impl->center_scroll_region)
- ? GTK_WIDGET(canvas)->allocation.width / 2
- : 0;
- const int anchor_y = (canvas->impl->center_scroll_region)
- ? GTK_WIDGET(canvas)->allocation.height / 2
- : 0;
-
- /* Find the coordinates of the anchor point in units. */
- const double ax = (canvas->layout.hadjustment)
- ? ((canvas->layout.hadjustment->value + anchor_x)
- / canvas->impl->pixels_per_unit
- + canvas->impl->scroll_x1 + canvas->impl->zoom_xofs)
- : ((0.0 + anchor_x) / canvas->impl->pixels_per_unit
- + canvas->impl->scroll_x1 + canvas->impl->zoom_xofs);
- const double ay = (canvas->layout.hadjustment)
- ? ((canvas->layout.vadjustment->value + anchor_y)
- / canvas->impl->pixels_per_unit
- + canvas->impl->scroll_y1 + canvas->impl->zoom_yofs)
- : ((0.0 + anchor_y) / canvas->impl->pixels_per_unit
- + canvas->impl->scroll_y1 + canvas->impl->zoom_yofs);
-
- /* Now calculate the new offset of the upper left corner. */
- const int x1 = ((ax - canvas->impl->scroll_x1) * zoom) - anchor_x;
- const int y1 = ((ay - canvas->impl->scroll_y1) * zoom) - anchor_y;
-
- canvas->impl->pixels_per_unit = zoom;
- ganv_canvas_scroll_to(canvas, x1, y1);
-
- ganv_canvas_request_update(canvas);
- gtk_widget_queue_draw(GTK_WIDGET(canvas));
-
- canvas->impl->need_repick = TRUE;
-}
-
-void
-ganv_canvas_set_font_size(GanvCanvas* canvas, double points)
-{
- points = std::max(points, 1.0);
- if (points != canvas->impl->font_size) {
- canvas->impl->font_size = points;
- FOREACH_ITEM(canvas->impl->_items, i) {
- ganv_node_redraw_text(*i);
- }
- }
-}
-
-void
-ganv_canvas_zoom_full(GanvCanvas* canvas)
-{
- if (canvas->impl->_items.empty())
- return;
-
- int win_width, win_height;
- GdkWindow* win = gtk_widget_get_window(
- GTK_WIDGET(canvas->impl->_gcanvas));
- gdk_window_get_size(win, &win_width, &win_height);
-
- // Box containing all canvas items
- double left = DBL_MAX;
- double right = DBL_MIN;
- double top = DBL_MIN;
- double bottom = DBL_MAX;
-
- FOREACH_ITEM(canvas->impl->_items, i) {
- GanvItem* const item = GANV_ITEM(*i);
- const double x = item->impl->x;
- const double y = item->impl->y;
- if (GANV_IS_CIRCLE(*i)) {
- const double r = GANV_CIRCLE(*i)->impl->coords.radius;
- left = MIN(left, x - r);
- right = MAX(right, x + r);
- bottom = MIN(bottom, y - r);
- top = MAX(top, y + r);
- } else {
- left = MIN(left, x);
- right = MAX(right, x + ganv_box_get_width(GANV_BOX(*i)));
- bottom = MIN(bottom, y);
- top = MAX(top, y + ganv_box_get_height(GANV_BOX(*i)));
- }
- }
-
- static const double pad = GANV_CANVAS_PAD;
-
- const double new_zoom = std::min(
- ((double)win_width / (double)(right - left + pad*2.0)),
- ((double)win_height / (double)(top - bottom + pad*2.0)));
-
- ganv_canvas_set_zoom(canvas, new_zoom);
-
- int scroll_x, scroll_y;
- ganv_canvas_w2c(canvas->impl->_gcanvas,
- lrintf(left - pad), lrintf(bottom - pad),
- &scroll_x, &scroll_y);
-
- ganv_canvas_scroll_to(canvas->impl->_gcanvas,
- scroll_x, scroll_y);
-}
-
-static void
-set_node_direction(GanvNode* node, void* data)
-{
- if (GANV_IS_MODULE(node)) {
- ganv_module_set_direction(GANV_MODULE(node), *(GanvDirection*)data);
- }
-}
-
-GanvDirection
-ganv_canvas_get_direction(GanvCanvas* canvas)
-{
- return canvas->impl->direction;
-}
-
-void
-ganv_canvas_set_direction(GanvCanvas* canvas, GanvDirection dir)
-{
- if (canvas->impl->direction != dir) {
- canvas->impl->direction = dir;
- ganv_canvas_for_each_node(canvas, set_node_direction, &dir);
- ganv_canvas_contents_changed(canvas);
- }
-}
-
-void
-ganv_canvas_clear_selection(GanvCanvas* canvas)
-{
- canvas->impl->unselect_ports();
-
- Items items(canvas->impl->_selected_items);
- canvas->impl->_selected_items.clear();
- FOREACH_ITEM(items, i) {
- ganv_item_set(GANV_ITEM(*i), "selected", FALSE, NULL);
- }
-
- GanvCanvasImpl::SelectedEdges edges(canvas->impl->_selected_edges);
- canvas->impl->_selected_edges.clear();
- FOREACH_SELECTED_EDGE(edges, c) {
- ganv_item_set(GANV_ITEM(*c), "selected", FALSE, NULL);
- }
-}
-
-void
-ganv_canvas_move_selected_items(GanvCanvas* canvas,
- double dx,
- double dy)
-{
- FOREACH_ITEM(canvas->impl->_selected_items, i) {
- if ((*i)->item.impl->parent == canvas->impl->root) {
- ganv_node_move(*i, dx, dy);
- }
- }
-}
-
-void
-ganv_canvas_selection_move_finished(GanvCanvas* canvas)
-{
- FOREACH_ITEM(canvas->impl->_selected_items, i) {
- const double x = GANV_ITEM(*i)->impl->x;
- const double y = GANV_ITEM(*i)->impl->y;
- g_signal_emit(*i, signal_moved, 0, x, y, NULL);
- }
-}
-
-static void
-select_if_ends_are_selected(GanvEdge* edge, void* data)
-{
- if (ganv_node_is_selected(ganv_edge_get_tail(edge)) &&
- ganv_node_is_selected(ganv_edge_get_head(edge))) {
- ganv_edge_set_selected(edge, TRUE);
- }
-}
-
-static void
-unselect_edges(GanvPort* port, void* data)
-{
- GanvCanvasImpl* impl = (GanvCanvasImpl*)data;
- if (port->impl->is_input) {
- ganv_canvas_for_each_edge_to(impl->_gcanvas,
- GANV_NODE(port),
- (GanvEdgeFunc)ganv_edge_unselect,
- NULL);
- } else {
- ganv_canvas_for_each_edge_from(impl->_gcanvas,
- GANV_NODE(port),
- (GanvEdgeFunc)ganv_edge_unselect,
- NULL);
- }
-}
-
-void
-ganv_canvas_select_node(GanvCanvas* canvas,
- GanvNode* node)
-{
- canvas->impl->_selected_items.insert(node);
-
- // Select any connections to or from this node
- if (GANV_IS_MODULE(node)) {
- ganv_module_for_each_port(GANV_MODULE(node), select_edges, canvas->impl);
- } else {
- ganv_canvas_for_each_edge_on(
- canvas, node, select_if_ends_are_selected, canvas->impl);
- }
-
- g_object_set(node, "selected", TRUE, NULL);
-}
-
-void
-ganv_canvas_unselect_node(GanvCanvas* canvas,
- GanvNode* node)
-{
- // Unselect any connections to or from canvas->impl node
- if (GANV_IS_MODULE(node)) {
- ganv_module_for_each_port(GANV_MODULE(node), unselect_edges, canvas->impl);
- } else {
- ganv_canvas_for_each_edge_on(
- canvas, node, (GanvEdgeFunc)ganv_edge_unselect, NULL);
- }
-
- // Unselect item
- canvas->impl->_selected_items.erase(node);
- g_object_set(node, "selected", FALSE, NULL);
-}
-
-void
-ganv_canvas_add_node(GanvCanvas* canvas,
- GanvNode* node)
-{
- GanvItem* item = GANV_ITEM(node);
- if (item->impl->parent == ganv_canvas_root(canvas)) {
- canvas->impl->_items.insert(node);
- }
-}
-
-void
-ganv_canvas_remove_node(GanvCanvas* canvas,
- GanvNode* node)
-{
- if (node == (GanvNode*)canvas->impl->_connect_port) {
- if (canvas->impl->_drag_state == GanvCanvasImpl::EDGE) {
- ganv_canvas_ungrab_item(ganv_canvas_root(canvas), 0);
- canvas->impl->end_connect_drag();
- }
- canvas->impl->_connect_port = NULL;
- }
-
- // Remove from selection
- canvas->impl->_selected_items.erase(node);
-
- // Remove children ports from selection if item is a module
- if (GANV_IS_MODULE(node)) {
- GanvModule* const module = GANV_MODULE(node);
- for (unsigned i = 0; i < ganv_module_num_ports(module); ++i) {
- canvas->impl->unselect_port(ganv_module_get_port(module, i));
- }
- }
-
- // Remove from items
- canvas->impl->_items.erase(node);
-}
-
-GanvEdge*
-ganv_canvas_get_edge(GanvCanvas* canvas,
- GanvNode* tail,
- GanvNode* head)
-{
- GanvEdgeKey key;
- make_edge_search_key(&key, tail, head);
- GanvCanvasImpl::Edges::const_iterator i = canvas->impl->_edges.find((GanvEdge*)&key);
- return (i != canvas->impl->_edges.end()) ? *i : NULL;
-}
-
-void
-ganv_canvas_remove_edge_between(GanvCanvas* canvas,
- GanvNode* tail,
- GanvNode* head)
-{
- ganv_canvas_remove_edge(canvas, ganv_canvas_get_edge(canvas, tail, head));
-}
-
-void
-ganv_canvas_disconnect_edge(GanvCanvas* canvas,
- GanvEdge* edge)
-{
- g_signal_emit(canvas, signal_disconnect, 0,
- edge->impl->tail, edge->impl->head, NULL);
-}
-
-void
-ganv_canvas_add_edge(GanvCanvas* canvas,
- GanvEdge* edge)
-{
- canvas->impl->_edges.insert(edge);
- canvas->impl->_dst_edges.insert(edge);
- ganv_canvas_contents_changed(canvas);
-}
-
-void
-ganv_canvas_remove_edge(GanvCanvas* canvas,
- GanvEdge* edge)
-{
- if (edge) {
- canvas->impl->_selected_edges.erase(edge);
- canvas->impl->_edges.erase(edge);
- canvas->impl->_dst_edges.erase(edge);
- ganv_edge_request_redraw(GANV_ITEM(edge), &edge->impl->coords);
- gtk_object_destroy(GTK_OBJECT(edge));
- ganv_canvas_contents_changed(canvas);
- }
-}
-
-void
-ganv_canvas_select_edge(GanvCanvas* canvas,
- GanvEdge* edge)
-{
- ganv_item_set(GANV_ITEM(edge), "selected", TRUE, NULL);
- canvas->impl->_selected_edges.insert(edge);
-}
-
-void
-ganv_canvas_unselect_edge(GanvCanvas* canvas,
- GanvEdge* edge)
-{
- ganv_item_set(GANV_ITEM(edge), "selected", FALSE, NULL);
- canvas->impl->_selected_edges.erase(edge);
-}
-
-void
-ganv_canvas_for_each_node(GanvCanvas* canvas,
- GanvNodeFunc f,
- void* data)
-{
- FOREACH_ITEM(canvas->impl->_items, i) {
- f(*i, data);
- }
-}
-
-void
-ganv_canvas_for_each_selected_node(GanvCanvas* canvas,
- GanvNodeFunc f,
- void* data)
-{
- FOREACH_ITEM(canvas->impl->_selected_items, i) {
- f(*i, data);
- }
-}
-
-gboolean
-ganv_canvas_empty(const GanvCanvas* canvas)
-{
- return canvas->impl->_items.empty();
-}
-
-void
-ganv_canvas_for_each_edge(GanvCanvas* canvas,
- GanvEdgeFunc f,
- void* data)
-{
- GanvCanvasImpl* impl = canvas->impl;
- for (GanvCanvasImpl::Edges::const_iterator i = impl->_edges.begin();
- i != impl->_edges.end();) {
- GanvCanvasImpl::Edges::const_iterator next = i;
- ++next;
- f((*i), data);
- i = next;
- }
-}
-
-void
-ganv_canvas_for_each_edge_from(GanvCanvas* canvas,
- const GanvNode* tail,
- GanvEdgeFunc f,
- void* data)
-{
- GanvCanvasImpl* impl = canvas->impl;
- for (GanvCanvasImpl::Edges::const_iterator i = impl->first_edge_from(tail);
- i != impl->_edges.end() && (*i)->impl->tail == tail;) {
- GanvCanvasImpl::Edges::const_iterator next = i;
- ++next;
- f((*i), data);
- i = next;
- }
-}
-
-void
-ganv_canvas_for_each_edge_to(GanvCanvas* canvas,
- const GanvNode* head,
- GanvEdgeFunc f,
- void* data)
-{
- GanvCanvasImpl* impl = canvas->impl;
- for (GanvCanvasImpl::Edges::const_iterator i = impl->first_edge_to(head);
- i != impl->_dst_edges.end() && (*i)->impl->head == head;) {
- GanvCanvasImpl::Edges::const_iterator next = i;
- ++next;
- f((*i), data);
- i = next;
- }
-}
-
-void
-ganv_canvas_for_each_edge_on(GanvCanvas* canvas,
- const GanvNode* node,
- GanvEdgeFunc f,
- void* data)
-{
- ganv_canvas_for_each_edge_from(canvas, node, f, data);
- ganv_canvas_for_each_edge_to(canvas, node, f, data);
-}
-
-void
-ganv_canvas_for_each_selected_edge(GanvCanvas* canvas,
- GanvEdgeFunc f,
- void* data)
-{
- FOREACH_EDGE(canvas->impl->_selected_edges, i) {
- f((*i), data);
- }
-}
-
-GdkCursor*
-ganv_canvas_get_move_cursor(const GanvCanvas* canvas)
-{
- return canvas->impl->_move_cursor;
-}
-
-gboolean
-ganv_canvas_port_event(GanvCanvas* canvas,
- GanvPort* port,
- GdkEvent* event)
-{
- return canvas->impl->port_event(event, port);
-}
-
-void
-ganv_canvas_clear(GanvCanvas* canvas)
-{
- canvas->impl->_selected_items.clear();
- canvas->impl->_selected_edges.clear();
-
- Items items = canvas->impl->_items; // copy
- FOREACH_ITEM(items, i) {
- gtk_object_destroy(GTK_OBJECT(*i));
- }
- canvas->impl->_items.clear();
-
- GanvCanvasImpl::Edges edges = canvas->impl->_edges; // copy
- FOREACH_EDGE(edges, i) {
- gtk_object_destroy(GTK_OBJECT(*i));
- }
- canvas->impl->_edges.clear();
- canvas->impl->_dst_edges.clear();
-
- canvas->impl->_selected_ports.clear();
- canvas->impl->_connect_port = NULL;
-}
-
-void
-ganv_canvas_select_all(GanvCanvas* canvas)
-{
- ganv_canvas_clear_selection(canvas);
- FOREACH_ITEM(canvas->impl->_items, i) {
- ganv_canvas_select_node(canvas, *i);
- }
-}
-
-double
-ganv_canvas_get_zoom(const GanvCanvas* canvas)
-{
- return canvas->impl->pixels_per_unit;
-}
-
-void
-ganv_canvas_move_contents_to(GanvCanvas* canvas, double x, double y)
-{
- double min_x=HUGE_VAL, min_y=HUGE_VAL;
- FOREACH_ITEM(canvas->impl->_items, i) {
- const double x = GANV_ITEM(*i)->impl->x;
- const double y = GANV_ITEM(*i)->impl->y;
- min_x = std::min(min_x, x);
- min_y = std::min(min_y, y);
- }
- canvas->impl->move_contents_to_internal(x, y, min_x, min_y);
-}
-
-void
-ganv_canvas_arrange(GanvCanvas* canvas)
-{
-#ifdef HAVE_AGRAPH
- GVNodes nodes = canvas->impl->layout_dot((char*)"");
-
- double least_x=HUGE_VAL, least_y=HUGE_VAL, most_x=0, most_y=0;
-
- // Set numeric locale to POSIX for reading graphviz output with strtod
- char* locale = strdup(setlocale(LC_NUMERIC, NULL));
- setlocale(LC_NUMERIC, "POSIX");
-
- const double dpi = gdk_screen_get_resolution(gdk_screen_get_default());
- const double dpp = dpi / 72.0;
-
- // Arrange to graphviz coordinates
- for (GVNodes::iterator i = nodes.begin(); i != nodes.end(); ++i) {
- if (GANV_ITEM(i->first)->impl->parent != GANV_ITEM(ganv_canvas_root(canvas))) {
- continue;
- }
- const std::string pos = agget(i->second, (char*)"pos");
- const std::string x_str = pos.substr(0, pos.find(","));
- const std::string y_str = pos.substr(pos.find(",") + 1);
- const double cx = lrint(strtod(x_str.c_str(), NULL) * dpp);
- const double cy = lrint(strtod(y_str.c_str(), NULL) * dpp);
-
- double w, h;
- if (GANV_IS_BOX(i->first)) {
- w = ganv_box_get_width(GANV_BOX(i->first));
- h = ganv_box_get_height(GANV_BOX(i->first));
- } else {
- w = h = ganv_circle_get_radius(GANV_CIRCLE(i->first)) * 2.3;
- }
-
- /* Dot node positions are supposedly node centers, but things only
- match up if x is interpreted as center and y as top...
- */
- double x = cx - (w / 2.0);
- double y = -cy - (h / 2.0);
-
- ganv_node_move_to(i->first, x, y);
-
- if (GANV_IS_CIRCLE(i->first)) {
- // Offset least x and y to avoid cutting off circles at origin
- const double r = ganv_circle_get_radius(GANV_CIRCLE(i->first));
- x -= r;
- y -= r;
- }
-
- least_x = std::min(least_x, x);
- least_y = std::min(least_y, y);
- most_x = std::max(most_x, x + w);
- most_y = std::max(most_y, y + h);
- }
-
- // Reset numeric locale to original value
- setlocale(LC_NUMERIC, locale);
- free(locale);
-
- const double graph_width = most_x - least_x;
- const double graph_height = most_y - least_y;
-
- //cerr << "CWH: " << _width << ", " << _height << endl;
- //cerr << "GWH: " << graph_width << ", " << graph_height << endl;
-
- double old_width, old_height;
- g_object_get(G_OBJECT(canvas),
- "width", &old_width,
- "height", &old_height,
- NULL);
-
- const double new_width = std::max(graph_width + 10.0, old_width);
- const double new_height = std::max(graph_height + 10.0, old_height);
- if (new_width != old_width || new_height != old_height) {
- ganv_canvas_resize(canvas, new_width, new_height);
- }
- nodes.cleanup();
-
- static const double border_width = GANV_CANVAS_PAD;
- canvas->impl->move_contents_to_internal(border_width, border_width, least_x, least_y);
- ganv_canvas_scroll_to(canvas->impl->_gcanvas, 0, 0);
-
- FOREACH_ITEM(canvas->impl->_items, i) {
- const double x = GANV_ITEM(*i)->impl->x;
- const double y = GANV_ITEM(*i)->impl->y;
- g_signal_emit(*i, signal_moved, 0, x, y, NULL);
- }
-#endif
-}
-
-int
-ganv_canvas_export_image(GanvCanvas* canvas,
- const char* filename,
- gboolean draw_background)
-{
- const char* ext = strrchr(filename, '.');
- if (!ext) {
- return 1;
- } else if (!strcmp(ext, ".dot")) {
- ganv_canvas_export_dot(canvas, filename);
- return 0;
- }
-
- cairo_surface_t* rec_surface = cairo_recording_surface_create(
- CAIRO_CONTENT_COLOR_ALPHA, NULL);
-
- // Draw to recording surface
- cairo_t* cr = cairo_create(rec_surface);
- canvas->impl->exporting = TRUE;
- (*GANV_ITEM_GET_CLASS(canvas->impl->root)->draw)(
- canvas->impl->root, cr,
- 0, 0, canvas->impl->width, canvas->impl->height);
- canvas->impl->exporting = FALSE;
- cairo_destroy(cr);
-
- // Get draw extent
- double x, y, w, h;
- cairo_recording_surface_ink_extents(rec_surface, &x, &y, &w, &h);
-
- // Create image surface with the appropriate size
- const double pad = GANV_CANVAS_PAD;
- const double img_w = w + pad * 2;
- const double img_h = h + pad * 2;
- cairo_surface_t* img = NULL;
- if (!strcmp(ext, ".svg")) {
- img = cairo_svg_surface_create(filename, img_w, img_h);
- } else if (!strcmp(ext, ".pdf")) {
- img = cairo_pdf_surface_create(filename, img_w, img_h);
- } else if (!strcmp(ext, ".ps")) {
- img = cairo_ps_surface_create(filename, img_w, img_h);
- } else {
- cairo_surface_destroy(rec_surface);
- return 1;
- }
-
- // Draw recording to image surface
- cr = cairo_create(img);
- if (draw_background) {
- double r, g, b, a;
- color_to_rgba(DEFAULT_BACKGROUND_COLOR, &r, &g, &b, &a);
- cairo_set_source_rgba(cr, r, g, b, a);
- cairo_rectangle(cr, 0, 0, w + 2 * pad, h + 2 * pad);
- cairo_fill(cr);
- }
- cairo_set_source_surface(cr, rec_surface, -x + pad, -y + pad);
- cairo_paint(cr);
- cairo_destroy(cr);
- cairo_surface_destroy(rec_surface);
- cairo_surface_destroy(img);
- return 0;
-}
-
-void
-ganv_canvas_export_dot(GanvCanvas* canvas, const char* filename)
-{
-#ifdef HAVE_AGRAPH
- GVNodes nodes = canvas->impl->layout_dot(filename);
- nodes.cleanup();
-#endif
-}
-
-gboolean
-ganv_canvas_supports_sprung_layout(const GanvCanvas* canvas)
-{
-#ifdef GANV_FDGL
- return TRUE;
-#else
- return FALSE;
-#endif
-}
-
-gboolean
-ganv_canvas_set_sprung_layout(GanvCanvas* canvas, gboolean sprung_layout)
-{
-#ifndef GANV_FDGL
- return FALSE;
-#else
- canvas->impl->sprung_layout = sprung_layout;
- ganv_canvas_contents_changed(canvas);
- return TRUE;
-#endif
-}
-
-gboolean
-ganv_canvas_get_locked(const GanvCanvas* canvas)
-{
- return canvas->impl->locked;
-}
-
-/* Convenience function to remove the idle handler of a canvas */
-static void
-remove_idle(GanvCanvas* canvas)
-{
- if (canvas->impl->idle_id == 0) {
- return;
- }
-
- g_source_remove(canvas->impl->idle_id);
- canvas->impl->idle_id = 0;
-}
-
-/* Removes the transient state of the canvas (idle handler, grabs). */
-static void
-shutdown_transients(GanvCanvas* canvas)
-{
- /* We turn off the need_redraw flag, since if the canvas is mapped again
- * it will request a redraw anyways. We do not turn off the need_update
- * flag, though, because updates are not queued when the canvas remaps
- * itself.
- */
- if (canvas->impl->need_redraw) {
- canvas->impl->need_redraw = FALSE;
- g_slist_foreach(canvas->impl->redraw_region, (GFunc)g_free, NULL);
- g_slist_free(canvas->impl->redraw_region);
- canvas->impl->redraw_region = NULL;
- canvas->impl->redraw_x1 = 0;
- canvas->impl->redraw_y1 = 0;
- canvas->impl->redraw_x2 = 0;
- canvas->impl->redraw_y2 = 0;
- }
-
- if (canvas->impl->grabbed_item) {
- canvas->impl->grabbed_item = NULL;
- gdk_pointer_ungrab(GDK_CURRENT_TIME);
- }
-
- remove_idle(canvas);
-}
-
-/* Destroy handler for GanvCanvas */
-static void
-ganv_canvas_destroy(GtkObject* object)
-{
- g_return_if_fail(GANV_IS_CANVAS(object));
-
- /* remember, destroy can be run multiple times! */
-
- GanvCanvas* canvas = GANV_CANVAS(object);
-
- if (canvas->impl->root_destroy_id) {
- g_signal_handler_disconnect(canvas->impl->root, canvas->impl->root_destroy_id);
- canvas->impl->root_destroy_id = 0;
- }
- if (canvas->impl->root) {
- gtk_object_destroy(GTK_OBJECT(canvas->impl->root));
- g_object_unref(G_OBJECT(canvas->impl->root));
- canvas->impl->root = NULL;
- }
-
- shutdown_transients(canvas);
-
- if (GTK_OBJECT_CLASS(canvas_parent_class)->destroy) {
- (*GTK_OBJECT_CLASS(canvas_parent_class)->destroy)(object);
- }
-}
-
-GanvCanvas*
-ganv_canvas_new(double width, double height)
-{
- GanvCanvas* canvas = GANV_CANVAS(
- g_object_new(ganv_canvas_get_type(),
- "width", width,
- "height", height,
- NULL));
-
- ganv_canvas_set_scroll_region(canvas, 0.0, 0.0, width, height);
-
- return canvas;
-}
-
-void
-ganv_canvas_set_wrapper(GanvCanvas* canvas, void* wrapper)
-{
- canvas->impl->_wrapper = (Ganv::Canvas*)wrapper;
-}
-
-void*
-ganv_canvas_get_wrapper(GanvCanvas* canvas)
-{
- return canvas->impl->_wrapper;
-}
-
-/* Map handler for the canvas */
-static void
-ganv_canvas_map(GtkWidget* widget)
-{
- g_return_if_fail(GANV_IS_CANVAS(widget));
-
- /* Normal widget mapping stuff */
-
- if (GTK_WIDGET_CLASS(canvas_parent_class)->map) {
- (*GTK_WIDGET_CLASS(canvas_parent_class)->map)(widget);
- }
-
- GanvCanvas* canvas = GANV_CANVAS(widget);
-
- if (canvas->impl->need_update) {
- add_idle(canvas);
- }
-
- /* Map items */
-
- if (GANV_ITEM_GET_CLASS(canvas->impl->root)->map) {
- (*GANV_ITEM_GET_CLASS(canvas->impl->root)->map)(canvas->impl->root);
- }
-}
-
-/* Unmap handler for the canvas */
-static void
-ganv_canvas_unmap(GtkWidget* widget)
-{
- g_return_if_fail(GANV_IS_CANVAS(widget));
-
- GanvCanvas* canvas = GANV_CANVAS(widget);
-
- shutdown_transients(canvas);
-
- /* Unmap items */
-
- if (GANV_ITEM_GET_CLASS(canvas->impl->root)->unmap) {
- (*GANV_ITEM_GET_CLASS(canvas->impl->root)->unmap)(canvas->impl->root);
- }
-
- /* Normal widget unmapping stuff */
-
- if (GTK_WIDGET_CLASS(canvas_parent_class)->unmap) {
- (*GTK_WIDGET_CLASS(canvas_parent_class)->unmap)(widget);
- }
-}
-
-/* Realize handler for the canvas */
-static void
-ganv_canvas_realize(GtkWidget* widget)
-{
- g_return_if_fail(GANV_IS_CANVAS(widget));
-
- /* Normal widget realization stuff */
-
- if (GTK_WIDGET_CLASS(canvas_parent_class)->realize) {
- (*GTK_WIDGET_CLASS(canvas_parent_class)->realize)(widget);
- }
-
- GanvCanvas* canvas = GANV_CANVAS(widget);
-
- gdk_window_set_events(
- canvas->layout.bin_window,
- (GdkEventMask)(gdk_window_get_events(canvas->layout.bin_window)
- | GDK_EXPOSURE_MASK
- | GDK_BUTTON_PRESS_MASK
- | GDK_BUTTON_RELEASE_MASK
- | GDK_POINTER_MOTION_MASK
- | GDK_KEY_PRESS_MASK
- | GDK_KEY_RELEASE_MASK
- | GDK_ENTER_NOTIFY_MASK
- | GDK_LEAVE_NOTIFY_MASK
- | GDK_FOCUS_CHANGE_MASK));
-
- /* Create our own temporary pixmap gc and realize all the items */
-
- canvas->impl->pixmap_gc = gdk_gc_new(canvas->layout.bin_window);
-
- (*GANV_ITEM_GET_CLASS(canvas->impl->root)->realize)(canvas->impl->root);
-
- canvas->impl->_animate_idle_id = g_timeout_add(
- 120, GanvCanvasImpl::on_animate_timeout, canvas->impl);
-}
-
-/* Unrealize handler for the canvas */
-static void
-ganv_canvas_unrealize(GtkWidget* widget)
-{
- g_return_if_fail(GANV_IS_CANVAS(widget));
-
- GanvCanvas* canvas = GANV_CANVAS(widget);
-
- if (canvas->impl->_animate_idle_id) {
- g_source_remove(canvas->impl->_animate_idle_id);
- canvas->impl->_animate_idle_id = 0;
- }
- while (g_idle_remove_by_data(canvas->impl)) {}
-
- shutdown_transients(canvas);
-
- /* Unrealize items and parent widget */
-
- (*GANV_ITEM_GET_CLASS(canvas->impl->root)->unrealize)(canvas->impl->root);
-
- g_object_unref(canvas->impl->pixmap_gc);
- canvas->impl->pixmap_gc = NULL;
-
- if (GTK_WIDGET_CLASS(canvas_parent_class)->unrealize) {
- (*GTK_WIDGET_CLASS(canvas_parent_class)->unrealize)(widget);
- }
-}
-
-/* Handles scrolling of the canvas. Adjusts the scrolling and zooming offset to
- * keep as much as possible of the canvas scrolling region in view.
- */
-static void
-scroll_to(GanvCanvas* canvas, int cx, int cy)
-{
- int scroll_width, scroll_height;
- int right_limit, bottom_limit;
- int old_zoom_xofs, old_zoom_yofs;
- int changed_x = FALSE, changed_y = FALSE;
- int canvas_width, canvas_height;
-
- canvas_width = GTK_WIDGET(canvas)->allocation.width;
- canvas_height = GTK_WIDGET(canvas)->allocation.height;
-
- scroll_width = floor((canvas->impl->scroll_x2 - canvas->impl->scroll_x1) * canvas->impl->pixels_per_unit
- + 0.5);
- scroll_height = floor((canvas->impl->scroll_y2 - canvas->impl->scroll_y1) * canvas->impl->pixels_per_unit
- + 0.5);
-
- right_limit = scroll_width - canvas_width;
- bottom_limit = scroll_height - canvas_height;
-
- old_zoom_xofs = canvas->impl->zoom_xofs;
- old_zoom_yofs = canvas->impl->zoom_yofs;
-
- if (right_limit < 0) {
- cx = 0;
-
- if (canvas->impl->center_scroll_region) {
- canvas->impl->zoom_xofs = (canvas_width - scroll_width) / 2;
- scroll_width = canvas_width;
- } else {
- canvas->impl->zoom_xofs = 0;
- }
- } else if (cx < 0) {
- cx = 0;
- canvas->impl->zoom_xofs = 0;
- } else if (cx > right_limit) {
- cx = right_limit;
- canvas->impl->zoom_xofs = 0;
- } else {
- canvas->impl->zoom_xofs = 0;
- }
-
- if (bottom_limit < 0) {
- cy = 0;
-
- if (canvas->impl->center_scroll_region) {
- canvas->impl->zoom_yofs = (canvas_height - scroll_height) / 2;
- scroll_height = canvas_height;
- } else {
- canvas->impl->zoom_yofs = 0;
- }
- } else if (cy < 0) {
- cy = 0;
- canvas->impl->zoom_yofs = 0;
- } else if (cy > bottom_limit) {
- cy = bottom_limit;
- canvas->impl->zoom_yofs = 0;
- } else {
- canvas->impl->zoom_yofs = 0;
- }
-
- if ((canvas->impl->zoom_xofs != old_zoom_xofs) || (canvas->impl->zoom_yofs != old_zoom_yofs)) {
- ganv_canvas_request_update(canvas);
- gtk_widget_queue_draw(GTK_WIDGET(canvas));
- }
-
- if (canvas->layout.hadjustment && ( ((int)canvas->layout.hadjustment->value) != cx) ) {
- canvas->layout.hadjustment->value = cx;
- changed_x = TRUE;
- }
-
- if (canvas->layout.vadjustment && ( ((int)canvas->layout.vadjustment->value) != cy) ) {
- canvas->layout.vadjustment->value = cy;
- changed_y = TRUE;
- }
-
- if ((scroll_width != (int)canvas->layout.width)
- || (scroll_height != (int)canvas->layout.height)) {
- gtk_layout_set_size(GTK_LAYOUT(canvas), scroll_width, scroll_height);
- }
-
- /* Signal GtkLayout that it should do a redraw. */
-
- if (changed_x) {
- g_signal_emit_by_name(canvas->layout.hadjustment, "value_changed");
- }
-
- if (changed_y) {
- g_signal_emit_by_name(canvas->layout.vadjustment, "value_changed");
- }
-}
-
-/* Size allocation handler for the canvas */
-static void
-ganv_canvas_size_allocate(GtkWidget* widget, GtkAllocation* allocation)
-{
- g_return_if_fail(GANV_IS_CANVAS(widget));
- g_return_if_fail(allocation != NULL);
-
- if (GTK_WIDGET_CLASS(canvas_parent_class)->size_allocate) {
- (*GTK_WIDGET_CLASS(canvas_parent_class)->size_allocate)(widget, allocation);
- }
-
- GanvCanvas* canvas = GANV_CANVAS(widget);
-
- /* Recenter the view, if appropriate */
-
- canvas->layout.hadjustment->page_size = allocation->width;
- canvas->layout.hadjustment->page_increment = allocation->width / 2;
-
- canvas->layout.vadjustment->page_size = allocation->height;
- canvas->layout.vadjustment->page_increment = allocation->height / 2;
-
- scroll_to(canvas,
- canvas->layout.hadjustment->value,
- canvas->layout.vadjustment->value);
-
- g_signal_emit_by_name(canvas->layout.hadjustment, "changed");
- g_signal_emit_by_name(canvas->layout.vadjustment, "changed");
-}
-
-/* Returns whether the item is an inferior of or is equal to the parent. */
-static gboolean
-is_descendant(GanvItem* item, GanvItem* parent)
-{
- for (; item; item = item->impl->parent) {
- if (item == parent) {
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-
-/* Emits an event for an item in the canvas, be it the current item, grabbed
- * item, or focused item, as appropriate.
- */
-int
-ganv_canvas_emit_event(GanvCanvas* canvas, GdkEvent* event)
-{
- GdkEvent* ev;
- gint finished;
- GanvItem* item;
- GanvItem* parent;
- guint mask;
-
- /* Perform checks for grabbed items */
-
- if (canvas->impl->grabbed_item
- && !is_descendant(canvas->impl->current_item, canvas->impl->grabbed_item)) {
- /* I think this warning is annoying and I don't know what it's for
- * so I'll disable it for now.
- */
- /* g_warning ("emit_event() returning FALSE!\n");*/
- return FALSE;
- }
-
- if (canvas->impl->grabbed_item) {
- switch (event->type) {
- case GDK_ENTER_NOTIFY:
- mask = GDK_ENTER_NOTIFY_MASK;
- break;
-
- case GDK_LEAVE_NOTIFY:
- mask = GDK_LEAVE_NOTIFY_MASK;
- break;
-
- case GDK_MOTION_NOTIFY:
- mask = GDK_POINTER_MOTION_MASK;
- break;
-
- case GDK_BUTTON_PRESS:
- case GDK_2BUTTON_PRESS:
- case GDK_3BUTTON_PRESS:
- mask = GDK_BUTTON_PRESS_MASK;
- break;
-
- case GDK_BUTTON_RELEASE:
- mask = GDK_BUTTON_RELEASE_MASK;
- break;
-
- case GDK_KEY_PRESS:
- mask = GDK_KEY_PRESS_MASK;
- break;
-
- case GDK_KEY_RELEASE:
- mask = GDK_KEY_RELEASE_MASK;
- break;
-
- case GDK_SCROLL:
- mask = GDK_SCROLL_MASK;
- break;
-
- default:
- mask = 0;
- break;
- }
-
- if (!(mask & canvas->impl->grabbed_event_mask)) {
- return FALSE;
- }
- }
-
- /* Convert to world coordinates -- we have two cases because of diferent
- * offsets of the fields in the event structures.
- */
-
- ev = gdk_event_copy(event);
-
- switch (ev->type) {
- case GDK_ENTER_NOTIFY:
- case GDK_LEAVE_NOTIFY:
- ganv_canvas_window_to_world(canvas,
- ev->crossing.x, ev->crossing.y,
- &ev->crossing.x, &ev->crossing.y);
- break;
-
- case GDK_MOTION_NOTIFY:
- case GDK_BUTTON_PRESS:
- case GDK_2BUTTON_PRESS:
- case GDK_3BUTTON_PRESS:
- case GDK_BUTTON_RELEASE:
- ganv_canvas_window_to_world(canvas,
- ev->motion.x, ev->motion.y,
- &ev->motion.x, &ev->motion.y);
- break;
-
- default:
- break;
- }
-
- /* Choose where we send the event */
-
- item = canvas->impl->current_item;
-
- if (canvas->impl->focused_item
- && ((event->type == GDK_KEY_PRESS)
- || (event->type == GDK_KEY_RELEASE)
- || (event->type == GDK_FOCUS_CHANGE))) {
- item = canvas->impl->focused_item;
- }
-
- /* The event is propagated up the hierarchy (for if someone connected to
- * a group instead of a leaf event), and emission is stopped if a
- * handler returns TRUE, just like for GtkWidget events.
- */
-
- finished = FALSE;
-
- while (item && !finished) {
- g_object_ref(G_OBJECT(item));
-
- ganv_item_emit_event(item, ev, &finished);
-
- parent = item->impl->parent;
- g_object_unref(G_OBJECT(item));
-
- item = parent;
- }
-
- gdk_event_free(ev);
-
- return finished;
-}
-
-void
-ganv_canvas_set_need_repick(GanvCanvas* canvas)
-{
- canvas->impl->need_repick = TRUE;
-}
-
-void
-ganv_canvas_forget_item(GanvCanvas* canvas, GanvItem* item)
-{
- if (canvas->impl && item == canvas->impl->current_item) {
- canvas->impl->current_item = NULL;
- canvas->impl->need_repick = TRUE;
- }
-
- if (canvas->impl && item == canvas->impl->new_current_item) {
- canvas->impl->new_current_item = NULL;
- canvas->impl->need_repick = TRUE;
- }
-
- if (canvas->impl && item == canvas->impl->grabbed_item) {
- canvas->impl->grabbed_item = NULL;
- gdk_pointer_ungrab(GDK_CURRENT_TIME);
- }
-
- if (canvas->impl && item == canvas->impl->focused_item) {
- canvas->impl->focused_item = NULL;
- }
-}
-
-void
-ganv_canvas_grab_focus(GanvCanvas* canvas, GanvItem* item)
-{
- g_return_if_fail(GANV_IS_ITEM(item));
- g_return_if_fail(GTK_WIDGET_CAN_FOCUS(GTK_WIDGET(canvas)));
-
- GanvItem* focused_item = canvas->impl->focused_item;
- GdkEvent ev;
-
- if (focused_item) {
- ev.focus_change.type = GDK_FOCUS_CHANGE;
- ev.focus_change.window = canvas->layout.bin_window;
- ev.focus_change.send_event = FALSE;
- ev.focus_change.in = FALSE;
-
- ganv_canvas_emit_event(canvas, &ev);
- }
-
- canvas->impl->focused_item = item;
- gtk_widget_grab_focus(GTK_WIDGET(canvas));
-
- if (focused_item) {
- ev.focus_change.type = GDK_FOCUS_CHANGE;
- ev.focus_change.window = canvas->layout.bin_window;
- ev.focus_change.send_event = FALSE;
- ev.focus_change.in = TRUE;
-
- ganv_canvas_emit_event(canvas, &ev);
- }
-}
-
-/**
- * ganv_canvas_grab_item:
- * @item: A canvas item.
- * @event_mask: Mask of events that will be sent to this item.
- * @cursor: If non-NULL, the cursor that will be used while the grab is active.
- * @etime: The timestamp required for grabbing the mouse, or GDK_CURRENT_TIME.
- *
- * Specifies that all events that match the specified event mask should be sent
- * to the specified item, and also grabs the mouse by calling
- * gdk_pointer_grab(). The event mask is also used when grabbing the pointer.
- * If @cursor is not NULL, then that cursor is used while the grab is active.
- * The @etime parameter is the timestamp required for grabbing the mouse.
- *
- * Return value: If an item was already grabbed, it returns %GDK_GRAB_ALREADY_GRABBED. If
- * the specified item was hidden by calling ganv_item_hide(), then it
- * returns %GDK_GRAB_NOT_VIEWABLE. Else, it returns the result of calling
- * gdk_pointer_grab().
- **/
-int
-ganv_canvas_grab_item(GanvItem* item, guint event_mask, GdkCursor* cursor, guint32 etime)
-{
- g_return_val_if_fail(GANV_IS_ITEM(item), GDK_GRAB_NOT_VIEWABLE);
- g_return_val_if_fail(GTK_WIDGET_MAPPED(item->impl->canvas), GDK_GRAB_NOT_VIEWABLE);
-
- if (item->impl->canvas->impl->grabbed_item) {
- return GDK_GRAB_ALREADY_GRABBED;
- }
-
- if (!(item->object.flags & GANV_ITEM_VISIBLE)) {
- return GDK_GRAB_NOT_VIEWABLE;
- }
-
- int retval = gdk_pointer_grab(item->impl->canvas->layout.bin_window,
- FALSE,
- (GdkEventMask)event_mask,
- NULL,
- cursor,
- etime);
-
- if (retval != GDK_GRAB_SUCCESS) {
- return retval;
- }
-
- item->impl->canvas->impl->grabbed_item = item;
- item->impl->canvas->impl->grabbed_event_mask = event_mask;
- item->impl->canvas->impl->current_item = item; /* So that events go to the grabbed item */
-
- return retval;
-}
-
-/**
- * ganv_canvas_ungrab_item:
- * @item: A canvas item that holds a grab.
- * @etime: The timestamp for ungrabbing the mouse.
- *
- * Ungrabs the item, which must have been grabbed in the canvas, and ungrabs the
- * mouse.
- **/
-void
-ganv_canvas_ungrab_item(GanvItem* item, guint32 etime)
-{
- g_return_if_fail(GANV_IS_ITEM(item));
-
- if (item->impl->canvas->impl->grabbed_item != item) {
- return;
- }
-
- item->impl->canvas->impl->grabbed_item = NULL;
-
- gdk_pointer_ungrab(etime);
-}
-
-void
-ganv_canvas_get_zoom_offsets(GanvCanvas* canvas, int* x, int* y)
-{
- *x = canvas->impl->zoom_xofs;
- *y = canvas->impl->zoom_yofs;
-}
-
-/* Re-picks the current item in the canvas, based on the event's coordinates.
- * Also emits enter/leave events for items as appropriate.
- */
-static int
-pick_current_item(GanvCanvas* canvas, GdkEvent* event)
-{
- int retval = FALSE;
-
- /* If a button is down, we'll perform enter and leave events on the
- * current item, but not enter on any other item. This is more or less
- * like X pointer grabbing for canvas items.
- */
- int button_down = canvas->impl->state & (GDK_BUTTON1_MASK
- | GDK_BUTTON2_MASK
- | GDK_BUTTON3_MASK
- | GDK_BUTTON4_MASK
- | GDK_BUTTON5_MASK);
- if (!button_down) {
- canvas->impl->left_grabbed_item = FALSE;
- }
-
- /* Save the event in the canvas. This is used to synthesize enter and
- * leave events in case the current item changes. It is also used to
- * re-pick the current item if the current one gets deleted. Also,
- * synthesize an enter event.
- */
- if (event != &canvas->impl->pick_event) {
- if ((event->type == GDK_MOTION_NOTIFY) || (event->type == GDK_BUTTON_RELEASE)) {
- /* these fields have the same offsets in both types of events */
-
- canvas->impl->pick_event.crossing.type = GDK_ENTER_NOTIFY;
- canvas->impl->pick_event.crossing.window = event->motion.window;
- canvas->impl->pick_event.crossing.send_event = event->motion.send_event;
- canvas->impl->pick_event.crossing.subwindow = NULL;
- canvas->impl->pick_event.crossing.x = event->motion.x;
- canvas->impl->pick_event.crossing.y = event->motion.y;
- canvas->impl->pick_event.crossing.mode = GDK_CROSSING_NORMAL;
- canvas->impl->pick_event.crossing.detail = GDK_NOTIFY_NONLINEAR;
- canvas->impl->pick_event.crossing.focus = FALSE;
- canvas->impl->pick_event.crossing.state = event->motion.state;
-
- /* these fields don't have the same offsets in both types of events */
-
- if (event->type == GDK_MOTION_NOTIFY) {
- canvas->impl->pick_event.crossing.x_root = event->motion.x_root;
- canvas->impl->pick_event.crossing.y_root = event->motion.y_root;
- } else {
- canvas->impl->pick_event.crossing.x_root = event->button.x_root;
- canvas->impl->pick_event.crossing.y_root = event->button.y_root;
- }
- } else {
- canvas->impl->pick_event = *event;
- }
- }
-
- /* Don't do anything else if this is a recursive call */
-
- if (canvas->impl->in_repick) {
- return retval;
- }
-
- /* LeaveNotify means that there is no current item, so we don't look for one */
-
- if (canvas->impl->pick_event.type != GDK_LEAVE_NOTIFY) {
- /* these fields don't have the same offsets in both types of events */
-
- double x, y;
- if (canvas->impl->pick_event.type == GDK_ENTER_NOTIFY) {
- x = canvas->impl->pick_event.crossing.x - canvas->impl->zoom_xofs;
- y = canvas->impl->pick_event.crossing.y - canvas->impl->zoom_yofs;
- } else {
- x = canvas->impl->pick_event.motion.x - canvas->impl->zoom_xofs;
- y = canvas->impl->pick_event.motion.y - canvas->impl->zoom_yofs;
- }
-
- /* world coords */
-
- x = canvas->impl->scroll_x1 + x / canvas->impl->pixels_per_unit;
- y = canvas->impl->scroll_y1 + y / canvas->impl->pixels_per_unit;
-
- /* find the closest item */
-
- if (canvas->impl->root->object.flags & GANV_ITEM_VISIBLE) {
- GANV_ITEM_GET_CLASS(canvas->impl->root)->point(
- canvas->impl->root,
- x - canvas->impl->root->impl->x, y - canvas->impl->root->impl->y,
- &canvas->impl->new_current_item);
- } else {
- canvas->impl->new_current_item = NULL;
- }
- } else {
- canvas->impl->new_current_item = NULL;
- }
-
- if ((canvas->impl->new_current_item == canvas->impl->current_item) && !canvas->impl->left_grabbed_item) {
- return retval; /* current item did not change */
-
- }
- /* Synthesize events for old and new current items */
-
- if ((canvas->impl->new_current_item != canvas->impl->current_item)
- && (canvas->impl->current_item != NULL)
- && !canvas->impl->left_grabbed_item) {
- GdkEvent new_event;
-
- new_event = canvas->impl->pick_event;
- new_event.type = GDK_LEAVE_NOTIFY;
-
- new_event.crossing.detail = GDK_NOTIFY_ANCESTOR;
- new_event.crossing.subwindow = NULL;
- canvas->impl->in_repick = TRUE;
- retval = ganv_canvas_emit_event(canvas, &new_event);
- canvas->impl->in_repick = FALSE;
- }
-
- /* new_current_item may have been set to NULL during the call to ganv_canvas_emit_event() above */
-
- if ((canvas->impl->new_current_item != canvas->impl->current_item) && button_down) {
- canvas->impl->left_grabbed_item = TRUE;
- return retval;
- }
-
- /* Handle the rest of cases */
-
- canvas->impl->left_grabbed_item = FALSE;
- canvas->impl->current_item = canvas->impl->new_current_item;
-
- if (canvas->impl->current_item != NULL) {
- GdkEvent new_event;
-
- new_event = canvas->impl->pick_event;
- new_event.type = GDK_ENTER_NOTIFY;
- new_event.crossing.detail = GDK_NOTIFY_ANCESTOR;
- new_event.crossing.subwindow = NULL;
- retval = ganv_canvas_emit_event(canvas, &new_event);
- }
-
- return retval;
-}
-
-/* Button event handler for the canvas */
-static gint
-ganv_canvas_button(GtkWidget* widget, GdkEventButton* event)
-{
- int mask;
- int retval;
-
- g_return_val_if_fail(GANV_IS_CANVAS(widget), FALSE);
- g_return_val_if_fail(event != NULL, FALSE);
-
- retval = FALSE;
-
- GanvCanvas* canvas = GANV_CANVAS(widget);
-
- /*
- * dispatch normally regardless of the event's window if an item has
- * has a pointer grab in effect
- */
- if (!canvas->impl->grabbed_item && ( event->window != canvas->layout.bin_window) ) {
- return retval;
- }
-
- switch (event->button) {
- case 1:
- mask = GDK_BUTTON1_MASK;
- break;
- case 2:
- mask = GDK_BUTTON2_MASK;
- break;
- case 3:
- mask = GDK_BUTTON3_MASK;
- break;
- case 4:
- mask = GDK_BUTTON4_MASK;
- break;
- case 5:
- mask = GDK_BUTTON5_MASK;
- break;
- default:
- mask = 0;
- }
-
- switch (event->type) {
- case GDK_BUTTON_PRESS:
- case GDK_2BUTTON_PRESS:
- case GDK_3BUTTON_PRESS:
- /* Pick the current item as if the button were not pressed, and
- * then process the event.
- */
- canvas->impl->state = event->state;
- pick_current_item(canvas, (GdkEvent*)event);
- canvas->impl->state ^= mask;
- retval = ganv_canvas_emit_event(canvas, (GdkEvent*)event);
- break;
-
- case GDK_BUTTON_RELEASE:
- /* Process the event as if the button were pressed, then repick
- * after the button has been released
- */
- canvas->impl->state = event->state;
- retval = ganv_canvas_emit_event(canvas, (GdkEvent*)event);
- event->state ^= mask;
- canvas->impl->state = event->state;
- pick_current_item(canvas, (GdkEvent*)event);
- event->state ^= mask;
- break;
-
- default:
- g_assert_not_reached();
- }
-
- return retval;
-}
-
-/* Motion event handler for the canvas */
-static gint
-ganv_canvas_motion(GtkWidget* widget, GdkEventMotion* event)
-{
- g_return_val_if_fail(GANV_IS_CANVAS(widget), FALSE);
- g_return_val_if_fail(event != NULL, FALSE);
-
- GanvCanvas* canvas = GANV_CANVAS(widget);
-
- if (event->window != canvas->layout.bin_window) {
- return FALSE;
- }
-
- canvas->impl->state = event->state;
- pick_current_item(canvas, (GdkEvent*)event);
- return ganv_canvas_emit_event(canvas, (GdkEvent*)event);
-}
-
-static gboolean
-ganv_canvas_scroll(GtkWidget* widget, GdkEventScroll* event)
-{
- g_return_val_if_fail(GANV_IS_CANVAS(widget), FALSE);
- g_return_val_if_fail(event != NULL, FALSE);
-
- GanvCanvas* canvas = GANV_CANVAS(widget);
-
- if (event->window != canvas->layout.bin_window) {
- return FALSE;
- }
-
- canvas->impl->state = event->state;
- pick_current_item(canvas, (GdkEvent*)event);
- return ganv_canvas_emit_event(canvas, (GdkEvent*)event);
-}
-
-/* Key event handler for the canvas */
-static gboolean
-ganv_canvas_key(GtkWidget* widget, GdkEventKey* event)
-{
- g_return_val_if_fail(GANV_IS_CANVAS(widget), FALSE);
- g_return_val_if_fail(event != NULL, FALSE);
-
- GanvCanvas* canvas = GANV_CANVAS(widget);
-
- if (!ganv_canvas_emit_event(canvas, (GdkEvent*)event)) {
- GtkWidgetClass* widget_class;
-
- widget_class = GTK_WIDGET_CLASS(canvas_parent_class);
-
- if (event->type == GDK_KEY_PRESS) {
- if (widget_class->key_press_event) {
- return (*widget_class->key_press_event)(widget, event);
- }
- } else if (event->type == GDK_KEY_RELEASE) {
- if (widget_class->key_release_event) {
- return (*widget_class->key_release_event)(widget, event);
- }
- } else {
- g_assert_not_reached();
- }
-
- return FALSE;
- } else {
- return TRUE;
- }
-}
-
-/* Crossing event handler for the canvas */
-static gint
-ganv_canvas_crossing(GtkWidget* widget, GdkEventCrossing* event)
-{
- g_return_val_if_fail(GANV_IS_CANVAS(widget), FALSE);
- g_return_val_if_fail(event != NULL, FALSE);
-
- GanvCanvas* canvas = GANV_CANVAS(widget);
-
- if (event->window != canvas->layout.bin_window) {
- return FALSE;
- }
-
- canvas->impl->state = event->state;
- return pick_current_item(canvas, (GdkEvent*)event);
-}
-
-/* Focus in handler for the canvas */
-static gint
-ganv_canvas_focus_in(GtkWidget* widget, GdkEventFocus* event)
-{
- GTK_WIDGET_SET_FLAGS(widget, GTK_HAS_FOCUS);
-
- GanvCanvas* canvas = GANV_CANVAS(widget);
-
- if (canvas->impl->focused_item) {
- return ganv_canvas_emit_event(canvas, (GdkEvent*)event);
- } else {
- return FALSE;
- }
-}
-
-/* Focus out handler for the canvas */
-static gint
-ganv_canvas_focus_out(GtkWidget* widget, GdkEventFocus* event)
-{
- GTK_WIDGET_UNSET_FLAGS(widget, GTK_HAS_FOCUS);
-
- GanvCanvas* canvas = GANV_CANVAS(widget);
-
- if (canvas->impl->focused_item) {
- return ganv_canvas_emit_event(canvas, (GdkEvent*)event);
- } else {
- return FALSE;
- }
-}
-
-#define REDRAW_QUANTUM_SIZE 512
-
-static void
-ganv_canvas_paint_rect(GanvCanvas* canvas, gint x0, gint y0, gint x1, gint y1)
-{
- gint draw_x1, draw_y1;
- gint draw_x2, draw_y2;
- gint draw_width, draw_height;
-
- g_return_if_fail(!canvas->impl->need_update);
-
- draw_x1 = MAX(x0, canvas->layout.hadjustment->value - canvas->impl->zoom_xofs);
- draw_y1 = MAX(y0, canvas->layout.vadjustment->value - canvas->impl->zoom_yofs);
- draw_x2 = MIN(draw_x1 + GTK_WIDGET(canvas)->allocation.width, x1);
- draw_y2 = MIN(draw_y1 + GTK_WIDGET(canvas)->allocation.height, y1);
-
- draw_width = draw_x2 - draw_x1;
- draw_height = draw_y2 - draw_y1;
-
- if ((draw_width < 1) || (draw_height < 1)) {
- return;
- }
-
- canvas->impl->redraw_x1 = draw_x1;
- canvas->impl->redraw_y1 = draw_y1;
- canvas->impl->redraw_x2 = draw_x2;
- canvas->impl->redraw_y2 = draw_y2;
- canvas->impl->draw_xofs = draw_x1;
- canvas->impl->draw_yofs = draw_y1;
-
- cairo_t* cr = gdk_cairo_create(canvas->layout.bin_window);
-
- double win_x, win_y;
- ganv_canvas_window_to_world(canvas, 0, 0, &win_x, &win_y);
- cairo_translate(cr, -win_x, -win_y);
- cairo_scale(cr, canvas->impl->pixels_per_unit, canvas->impl->pixels_per_unit);
-
- if (canvas->impl->root->object.flags & GANV_ITEM_VISIBLE) {
- double wx1, wy1, ww, wh;
- ganv_canvas_c2w(canvas, draw_x1, draw_y1, &wx1, &wy1);
- ganv_canvas_c2w(canvas, draw_width, draw_height, &ww, &wh);
-
- // Draw background
- double r, g, b, a;
- color_to_rgba(DEFAULT_BACKGROUND_COLOR, &r, &g, &b, &a);
- cairo_set_source_rgba(cr, r, g, b, a);
- cairo_rectangle(cr, wx1, wy1, ww, wh);
- cairo_fill(cr);
-
- // Draw root group
- (*GANV_ITEM_GET_CLASS(canvas->impl->root)->draw)(
- canvas->impl->root, cr,
- wx1, wy1, ww, wh);
- }
-
- cairo_destroy(cr);
-}
-
-/* Expose handler for the canvas */
-static gint
-ganv_canvas_expose(GtkWidget* widget, GdkEventExpose* event)
-{
- GanvCanvas* canvas = GANV_CANVAS(widget);
- if (!GTK_WIDGET_DRAWABLE(widget) ||
- (event->window != canvas->layout.bin_window)) {
- return FALSE;
- }
-
- /* Find a single bounding rectangle for all rectangles in the region.
- Since drawing the root group is O(n) and thus very expensive for large
- canvases, it's much faster to do a single paint than many, even though
- more area may be painted that way. With a better group implementation,
- it would likely be better to paint each changed rectangle separately. */
- GdkRectangle clip;
- gdk_region_get_clipbox(event->region, &clip);
-
- const int x2 = clip.x + clip.width;
- const int y2 = clip.y + clip.height;
-
- if (canvas->impl->need_update || canvas->impl->need_redraw) {
- /* Update or drawing is scheduled, so just mark exposed area as dirty */
- ganv_canvas_request_redraw_c(canvas, clip.x, clip.y, x2, y2);
- } else {
- /* No pending updates, draw exposed area immediately */
- ganv_canvas_paint_rect(canvas, clip.x, clip.y, x2, y2);
-
- /* And call expose on parent container class */
- if (GTK_WIDGET_CLASS(canvas_parent_class)->expose_event) {
- (*GTK_WIDGET_CLASS(canvas_parent_class)->expose_event)(
- widget, event);
- }
- }
-
- return FALSE;
-}
-
-/* Repaints the areas in the canvas that need it */
-static void
-paint(GanvCanvas* canvas)
-{
- for (GSList* l = canvas->impl->redraw_region; l; l = l->next) {
- IRect* rect = (IRect*)l->data;
-
- const GdkRectangle gdkrect = {
- rect->x + canvas->impl->zoom_xofs,
- rect->y + canvas->impl->zoom_yofs,
- rect->width,
- rect->height
- };
-
- gdk_window_invalidate_rect(canvas->layout.bin_window, &gdkrect, FALSE);
- g_free(rect);
- }
-
- g_slist_free(canvas->impl->redraw_region);
- canvas->impl->redraw_region = NULL;
- canvas->impl->need_redraw = FALSE;
-
- canvas->impl->redraw_x1 = 0;
- canvas->impl->redraw_y1 = 0;
- canvas->impl->redraw_x2 = 0;
- canvas->impl->redraw_y2 = 0;
-}
-
-static void
-do_update(GanvCanvas* canvas)
-{
- /* Cause the update if necessary */
-
-update_again:
- if (canvas->impl->need_update) {
- ganv_item_invoke_update(canvas->impl->root, 0);
-
- canvas->impl->need_update = FALSE;
- }
-
- /* Pick new current item */
-
- while (canvas->impl->need_repick) {
- canvas->impl->need_repick = FALSE;
- pick_current_item(canvas, &canvas->impl->pick_event);
- }
-
- /* it is possible that during picking we emitted an event in which
- the user then called some function which then requested update
- of something. Without this we'd be left in a state where
- need_update would have been left TRUE and the canvas would have
- been left unpainted. */
- if (canvas->impl->need_update) {
- goto update_again;
- }
-
- /* Paint if able to */
-
- if (GTK_WIDGET_DRAWABLE(canvas) && canvas->impl->need_redraw) {
- paint(canvas);
- }
-}
-
-/* Idle handler for the canvas. It deals with pending updates and redraws. */
-static gboolean
-idle_handler(gpointer data)
-{
- GDK_THREADS_ENTER();
-
- GanvCanvas* canvas = GANV_CANVAS(data);
-
- do_update(canvas);
-
- /* Reset idle id */
- canvas->impl->idle_id = 0;
-
- GDK_THREADS_LEAVE();
-
- return FALSE;
-}
-
-/* Convenience function to add an idle handler to a canvas */
-static void
-add_idle(GanvCanvas* canvas)
-{
- g_assert(canvas->impl->need_update || canvas->impl->need_redraw);
-
- if (!canvas->impl->idle_id) {
- canvas->impl->idle_id = g_idle_add_full(CANVAS_IDLE_PRIORITY,
- idle_handler,
- canvas,
- NULL);
- }
-
- /* canvas->idle_id = gtk_idle_add (idle_handler, canvas); */
-}
-
-GanvItem*
-ganv_canvas_root(GanvCanvas* canvas)
-{
- g_return_val_if_fail(GANV_IS_CANVAS(canvas), NULL);
-
- return canvas->impl->root;
-}
-
-void
-ganv_canvas_set_scroll_region(GanvCanvas* canvas,
- double x1, double y1, double x2, double y2)
-{
- double wxofs, wyofs;
- int xofs, yofs;
-
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- /*
- * Set the new scrolling region. If possible, do not move the visible contents of the
- * canvas.
- */
-
- ganv_canvas_c2w(canvas,
- GTK_LAYOUT(canvas)->hadjustment->value + canvas->impl->zoom_xofs,
- GTK_LAYOUT(canvas)->vadjustment->value + canvas->impl->zoom_yofs,
- /*canvas->impl->zoom_xofs,
- canvas->impl->zoom_yofs,*/
- &wxofs, &wyofs);
-
- canvas->impl->scroll_x1 = x1;
- canvas->impl->scroll_y1 = y1;
- canvas->impl->scroll_x2 = x2;
- canvas->impl->scroll_y2 = y2;
-
- ganv_canvas_w2c(canvas, wxofs, wyofs, &xofs, &yofs);
-
- scroll_to(canvas, xofs, yofs);
-
- canvas->impl->need_repick = TRUE;
-#if 0
- /* todo: should be requesting update */
- (*GANV_ITEM_CLASS(canvas->impl->root->object.klass)->update)(
- canvas->impl->root, NULL, NULL, 0);
-#endif
-}
-
-void
-ganv_canvas_get_scroll_region(GanvCanvas* canvas,
- double* x1, double* y1, double* x2, double* y2)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- if (x1) {
- *x1 = canvas->impl->scroll_x1;
- }
-
- if (y1) {
- *y1 = canvas->impl->scroll_y1;
- }
-
- if (x2) {
- *x2 = canvas->impl->scroll_x2;
- }
-
- if (y2) {
- *y2 = canvas->impl->scroll_y2;
- }
-}
-
-void
-ganv_canvas_set_center_scroll_region(GanvCanvas* canvas, gboolean center_scroll_region)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- canvas->impl->center_scroll_region = center_scroll_region != 0;
-
- scroll_to(canvas,
- canvas->layout.hadjustment->value,
- canvas->layout.vadjustment->value);
-}
-
-gboolean
-ganv_canvas_get_center_scroll_region(const GanvCanvas* canvas)
-{
- g_return_val_if_fail(GANV_IS_CANVAS(canvas), FALSE);
-
- return canvas->impl->center_scroll_region ? TRUE : FALSE;
-}
-
-void
-ganv_canvas_scroll_to(GanvCanvas* canvas, int cx, int cy)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- scroll_to(canvas, cx, cy);
-}
-
-void
-ganv_canvas_get_scroll_offsets(const GanvCanvas* canvas, int* cx, int* cy)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- if (cx) {
- *cx = canvas->layout.hadjustment->value;
- }
-
- if (cy) {
- *cy = canvas->layout.vadjustment->value;
- }
-}
-
-GanvItem*
-ganv_canvas_get_item_at(GanvCanvas* canvas, double x, double y)
-{
- g_return_val_if_fail(GANV_IS_CANVAS(canvas), NULL);
-
- GanvItem* item = NULL;
- double dist = GANV_ITEM_GET_CLASS(canvas->impl->root)->point(
- canvas->impl->root,
- x - canvas->impl->root->impl->x,
- y - canvas->impl->root->impl->y,
- &item);
- if ((int)(dist * canvas->impl->pixels_per_unit + 0.5) <= GANV_CLOSE_ENOUGH) {
- return item;
- } else {
- return NULL;
- }
-}
-
-void
-ganv_canvas_request_update(GanvCanvas* canvas)
-{
- if (canvas->impl->need_update) {
- return;
- }
-
- canvas->impl->need_update = TRUE;
- if (GTK_WIDGET_MAPPED((GtkWidget*)canvas)) {
- add_idle(canvas);
- }
-}
-
-static inline gboolean
-rect_overlaps(const IRect* a, const IRect* b)
-{
- if ((a->x > b->x + b->width) ||
- (a->y > b->y + b->height) ||
- (a->x + a->width < b->x) ||
- (a->y + a->height < b->y)) {
- return FALSE;
- }
- return TRUE;
-}
-
-static inline gboolean
-rect_is_visible(GanvCanvas* canvas, const IRect* r)
-{
- const IRect rect = {
- (int)(canvas->layout.hadjustment->value - canvas->impl->zoom_xofs),
- (int)(canvas->layout.vadjustment->value - canvas->impl->zoom_yofs),
- GTK_WIDGET(canvas)->allocation.width,
- GTK_WIDGET(canvas)->allocation.height
- };
-
- return rect_overlaps(&rect, r);
-}
-
-void
-ganv_canvas_request_redraw_c(GanvCanvas* canvas,
- int x1, int y1, int x2, int y2)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- if (!GTK_WIDGET_DRAWABLE(canvas) || (x1 >= x2) || (y1 >= y2)) {
- return;
- }
-
- const IRect rect = { x1, y1, x2 - x1, y2 - y1 };
-
- if (!rect_is_visible(canvas, &rect)) {
- return;
- }
-
- IRect* r = (IRect*)g_malloc(sizeof(IRect));
- *r = rect;
-
- canvas->impl->redraw_region = g_slist_prepend(canvas->impl->redraw_region, r);
- canvas->impl->need_redraw = TRUE;
-
- if (canvas->impl->idle_id == 0) {
- add_idle(canvas);
- }
-}
-
-/* Request a redraw of the specified rectangle in world coordinates */
-void
-ganv_canvas_request_redraw_w(GanvCanvas* canvas,
- double x1, double y1, double x2, double y2)
-{
- int cx1, cx2, cy1, cy2;
- ganv_canvas_w2c(canvas, x1, y1, &cx1, &cy1);
- ganv_canvas_w2c(canvas, x2, y2, &cx2, &cy2);
- ganv_canvas_request_redraw_c(canvas, cx1, cy1, cx2, cy2);
-}
-
-void
-ganv_canvas_w2c_affine(GanvCanvas* canvas, cairo_matrix_t* matrix)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
- g_return_if_fail(matrix != NULL);
-
- cairo_matrix_init_translate(matrix,
- -canvas->impl->scroll_x1,
- -canvas->impl->scroll_y1);
-
- cairo_matrix_scale(matrix,
- canvas->impl->pixels_per_unit,
- canvas->impl->pixels_per_unit);
-}
-
-void
-ganv_canvas_w2c(GanvCanvas* canvas, double wx, double wy, int* cx, int* cy)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- cairo_matrix_t matrix;
- ganv_canvas_w2c_affine(canvas, &matrix);
-
- cairo_matrix_transform_point(&matrix, &wx, &wy);
-
- if (cx) {
- *cx = floor(wx + 0.5);
- }
- if (cy) {
- *cy = floor(wy + 0.5);
- }
-}
-
-void
-ganv_canvas_w2c_d(GanvCanvas* canvas, double wx, double wy, double* cx, double* cy)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- cairo_matrix_t matrix;
- ganv_canvas_w2c_affine(canvas, &matrix);
-
- cairo_matrix_transform_point(&matrix, &wx, &wy);
-
- if (cx) {
- *cx = wx;
- }
- if (cy) {
- *cy = wy;
- }
-}
-
-void
-ganv_canvas_c2w(GanvCanvas* canvas, int cx, int cy, double* wx, double* wy)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- cairo_matrix_t matrix;
- ganv_canvas_w2c_affine(canvas, &matrix);
- cairo_matrix_invert(&matrix);
-
- double x = cx;
- double y = cy;
- cairo_matrix_transform_point(&matrix, &x, &y);
-
- if (wx) {
- *wx = x;
- }
- if (wy) {
- *wy = y;
- }
-}
-
-void
-ganv_canvas_window_to_world(GanvCanvas* canvas, double winx, double winy,
- double* worldx, double* worldy)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- if (worldx) {
- *worldx = canvas->impl->scroll_x1 + ((winx - canvas->impl->zoom_xofs)
- / canvas->impl->pixels_per_unit);
- }
-
- if (worldy) {
- *worldy = canvas->impl->scroll_y1 + ((winy - canvas->impl->zoom_yofs)
- / canvas->impl->pixels_per_unit);
- }
-}
-
-void
-ganv_canvas_world_to_window(GanvCanvas* canvas, double worldx, double worldy,
- double* winx, double* winy)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- if (winx) {
- *winx = (canvas->impl->pixels_per_unit) * (worldx - canvas->impl->scroll_x1) + canvas->impl->zoom_xofs;
- }
-
- if (winy) {
- *winy = (canvas->impl->pixels_per_unit) * (worldy - canvas->impl->scroll_y1) + canvas->impl->zoom_yofs;
- }
-}
-
-void
-ganv_canvas_set_port_order(GanvCanvas* canvas,
- GanvPortOrderFunc port_cmp,
- void* data)
-{
- g_return_if_fail(GANV_IS_CANVAS(canvas));
-
- canvas->impl->_port_order.port_cmp = port_cmp;
- canvas->impl->_port_order.data = data;
-}
-
-PortOrderCtx
-ganv_canvas_get_port_order(GanvCanvas* canvas)
-{
- return canvas->impl->_port_order;
-}
-
-gboolean
-ganv_canvas_exporting(GanvCanvas* canvas)
-{
- return canvas->impl->exporting;
-}
-
-} // extern "C"
diff --git a/src/Port.cpp b/src/Port.cpp
deleted file mode 100644
index 3f0d02b..0000000
--- a/src/Port.cpp
+++ /dev/null
@@ -1,57 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2015 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <string>
-
-#include <glib.h>
-
-#include "ganv/Canvas.hpp"
-#include "ganv/Module.hpp"
-#include "ganv/Port.hpp"
-
-#include "./color.h"
-
-namespace Ganv {
-
-static void
-on_value_changed(GanvPort* port, double value, void* portmm)
-{
- ((Port*)portmm)->signal_value_changed.emit(value);
-}
-
-/* Construct a Port on an existing module. */
-Port::Port(Module& module,
- const std::string& name,
- bool is_input,
- uint32_t color)
- : Box(module.canvas(),
- GANV_BOX(ganv_port_new(module.gobj(), is_input,
- "fill-color", color,
- "border-color", PORT_BORDER_COLOR(color),
- "border-width", 2.0,
- "label", name.c_str(),
- NULL)))
-{
- g_signal_connect(gobj(), "value-changed",
- G_CALLBACK(on_value_changed), this);
-}
-
-Module*
-Port::get_module() const
-{
- return Glib::wrap(ganv_port_get_module(gobj()));
-}
-
-} // namespace Ganv
diff --git a/src/boilerplate.h b/src/boilerplate.h
deleted file mode 100644
index a419711..0000000
--- a/src/boilerplate.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2016 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-typedef gpointer gobject;
-
-/**
- A case in a switch statement in a set_properties implementation.
- @prop: Property enumeration ID.
- @type: Name of the value type, e.g. uint for guint.
- @field: Field to set to the new value.
-*/
-#define SET_CASE(prop, type, field) \
- case PROP_##prop: { \
- const g##type tmp = g_value_get_##type(value); \
- if ((field) != tmp) { \
- (field) = tmp; \
- ganv_item_request_update(GANV_ITEM(object)); \
- } \
- break; \
- }
-
-/**
- A case in a switch statement in a get_properties implementation.
- @prop: Property enumeration ID.
- @type: Name of the value type, e.g. uint for guint.
- @field: Field to set to the new value.
-*/
-#define GET_CASE(prop, type, field) \
- case PROP_##prop: \
- g_value_set_##type(value, field); \
- break;
diff --git a/src/box.c b/src/box.c
deleted file mode 100644
index e7ecac8..0000000
--- a/src/box.c
+++ /dev/null
@@ -1,561 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2015 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <math.h>
-#include <string.h>
-
-#include <cairo.h>
-
-#include "ganv/box.h"
-
-#include "./boilerplate.h"
-#include "./color.h"
-#include "./gettext.h"
-#include "./ganv-private.h"
-
-static const double STACKED_OFFSET = 4.0;
-
-G_DEFINE_TYPE_WITH_CODE(GanvBox, ganv_box, GANV_TYPE_NODE,
- G_ADD_PRIVATE(GanvBox))
-
-static GanvNodeClass* parent_class;
-
-enum {
- PROP_0,
- PROP_X1,
- PROP_Y1,
- PROP_X2,
- PROP_Y2,
- PROP_RADIUS_TL,
- PROP_RADIUS_TR,
- PROP_RADIUS_BR,
- PROP_RADIUS_BL,
- PROP_STACKED,
- PROP_BEVELED
-};
-
-static void
-ganv_box_init(GanvBox* box)
-{
- box->impl = ganv_box_get_instance_private(box);
-
- memset(&box->impl->coords, '\0', sizeof(GanvBoxCoords));
-
- box->impl->coords.border_width = GANV_NODE(box)->impl->border_width;
- box->impl->old_coords = box->impl->coords;
- box->impl->radius_tl = 0.0;
- box->impl->radius_tr = 0.0;
- box->impl->radius_br = 0.0;
- box->impl->radius_bl = 0.0;
- box->impl->beveled = FALSE;
-}
-
-static void
-ganv_box_destroy(GtkObject* object)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_BOX(object));
-
- if (GTK_OBJECT_CLASS(parent_class)->destroy) {
- (*GTK_OBJECT_CLASS(parent_class)->destroy)(object);
- }
-}
-
-static void
-ganv_box_set_property(GObject* object,
- guint prop_id,
- const GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_BOX(object));
-
- GanvBox* box = GANV_BOX(object);
- GanvBoxPrivate* impl = box->impl;
- GanvBoxCoords* coords = &impl->coords;
-
- switch (prop_id) {
- SET_CASE(X1, double, coords->x1);
- SET_CASE(Y1, double, coords->y1);
- SET_CASE(X2, double, coords->x2);
- SET_CASE(Y2, double, coords->y2);
- SET_CASE(RADIUS_TL, double, impl->radius_tl);
- SET_CASE(RADIUS_TR, double, impl->radius_tr);
- SET_CASE(RADIUS_BR, double, impl->radius_br);
- SET_CASE(RADIUS_BL, double, impl->radius_bl);
- SET_CASE(STACKED, boolean, coords->stacked);
- SET_CASE(BEVELED, boolean, impl->beveled);
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_box_get_property(GObject* object,
- guint prop_id,
- GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_BOX(object));
-
- GanvBox* box = GANV_BOX(object);
- GanvBoxPrivate* impl = box->impl;
- GanvBoxCoords* coords = &impl->coords;
-
- switch (prop_id) {
- GET_CASE(X1, double, coords->x1);
- GET_CASE(X2, double, coords->x2);
- GET_CASE(Y1, double, coords->y1);
- GET_CASE(Y2, double, coords->y2);
- GET_CASE(RADIUS_TL, double, impl->radius_tl);
- GET_CASE(RADIUS_TR, double, impl->radius_tr);
- GET_CASE(RADIUS_BR, double, impl->radius_br);
- GET_CASE(RADIUS_BL, double, impl->radius_bl);
- GET_CASE(STACKED, boolean, impl->coords.stacked);
- GET_CASE(BEVELED, boolean, impl->beveled);
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_box_bounds_item(const GanvBoxCoords* coords,
- double* x1, double* y1,
- double* x2, double* y2)
-{
- *x1 = coords->x1 - coords->border_width;
- *y1 = coords->y1 - coords->border_width;
- *x2 = coords->x2 + coords->border_width + (coords->stacked * STACKED_OFFSET);
- *y2 = coords->y2 + coords->border_width + (coords->stacked * STACKED_OFFSET);
-}
-
-void
-ganv_box_request_redraw(GanvItem* item,
- const GanvBoxCoords* coords,
- gboolean world)
-{
- double x1, y1, x2, y2;
- ganv_box_bounds_item(coords, &x1, &y1, &x2, &y2);
-
- if (!world) {
- // Convert from item-relative coordinates to world coordinates
- ganv_item_i2w_pair(item, &x1, &y1, &x2, &y2);
- }
-
- ganv_canvas_request_redraw_w(item->impl->canvas, x1, y1, x2, y2);
-}
-
-static void
-coords_i2w(GanvItem* item, GanvBoxCoords* coords)
-{
- ganv_item_i2w_pair(item, &coords->x1, &coords->y1, &coords->x2, &coords->y2);
-}
-
-static void
-ganv_box_bounds(GanvItem* item,
- double* x1, double* y1,
- double* x2, double* y2)
-{
- // Note this will not be correct if children are outside the box bounds
- GanvBox* box = (GanvBox*)item;
- ganv_box_bounds_item(&box->impl->coords, x1, y1, x2, y2);
-}
-
-static void
-ganv_box_update(GanvItem* item, int flags)
-{
- GanvBox* box = GANV_BOX(item);
- GanvBoxPrivate* impl = box->impl;
- impl->coords.border_width = box->node.impl->border_width;
-
- // Request redraw of old location
- ganv_box_request_redraw(item, &impl->old_coords, TRUE);
-
- // Store old coordinates in world relative coordinates in case the
- // group we are in moves between now and the next update
- impl->old_coords = impl->coords;
- coords_i2w(item, &impl->old_coords);
-
- // Call parent class update method, resizing if necessary
- GANV_ITEM_CLASS(parent_class)->update(item, flags);
- ganv_box_normalize(box);
-
- // Update world-relative bounding box
- ganv_box_bounds(item, &item->impl->x1, &item->impl->y1, &item->impl->x2, &item->impl->y2);
- ganv_item_i2w_pair(item, &item->impl->x1, &item->impl->y1, &item->impl->x2, &item->impl->y2);
-
- // Request redraw of new location
- ganv_box_request_redraw(item, &impl->coords, FALSE);
-}
-
-void
-ganv_box_path(GanvBox* box,
- cairo_t* cr, double x1, double y1, double x2, double y2,
- double dr)
-{
- static const double degrees = G_PI / 180.0;
-
- GanvBoxPrivate* impl = box->impl;
-
- if (impl->radius_tl == 0.0 && impl->radius_tr == 0.0
- && impl->radius_br == 0.0 && impl->radius_bl == 0.0) {
- // Simple rectangle
- cairo_rectangle(cr, x1, y1, x2 - x1, y2 - y1);
- } else if (impl->beveled) {
- // Beveled rectangle
- cairo_new_sub_path(cr);
- cairo_move_to(cr, x1 + impl->radius_tl, y1);
- cairo_line_to(cr, x2 - impl->radius_tr, y1);
- cairo_line_to(cr, x2, y1 + impl->radius_tr);
- cairo_line_to(cr, x2, y2 - impl->radius_br);
- cairo_line_to(cr, x2 - impl->radius_br, y2);
- cairo_line_to(cr, x1 + impl->radius_bl, y2);
- cairo_line_to(cr, x1, y2 - impl->radius_bl);
- cairo_line_to(cr, x1, y2 - impl->radius_bl);
- cairo_line_to(cr, x1, y1 + impl->radius_tl);
- cairo_close_path(cr);
- } else {
- // Rounded rectangle
- cairo_new_sub_path(cr);
- cairo_arc(cr,
- x2 - impl->radius_tr - dr,
- y1 + impl->radius_tr + dr,
- impl->radius_tr + dr, -90 * degrees, 0 * degrees);
- cairo_arc(cr,
- x2 - impl->radius_br - dr, y2 - impl->radius_br - dr,
- impl->radius_br + dr, 0 * degrees, 90 * degrees);
- cairo_arc(cr,
- x1 + impl->radius_bl + dr, y2 - impl->radius_bl - dr,
- impl->radius_bl + dr, 90 * degrees, 180 * degrees);
- cairo_arc(cr,
- x1 + impl->radius_tl + dr, y1 + impl->radius_tl + dr,
- impl->radius_tl + dr, 180 * degrees, 270 * degrees);
- cairo_close_path(cr);
- }
-}
-
-static void
-ganv_box_draw(GanvItem* item,
- cairo_t* cr, double cx, double cy, double cw, double ch)
-{
- GanvBox* box = GANV_BOX(item);
- GanvBoxPrivate* impl = box->impl;
-
- double x1 = impl->coords.x1;
- double y1 = impl->coords.y1;
- double x2 = impl->coords.x2;
- double y2 = impl->coords.y2;
- ganv_item_i2w_pair(item, &x1, &y1, &x2, &y2);
-
- double dash_length, border_color, fill_color;
- ganv_node_get_draw_properties(
- &box->node, &dash_length, &border_color, &fill_color);
-
- double r, g, b, a;
-
- for (int i = (impl->coords.stacked ? 1 : 0); i >= 0; --i) {
- const double x = 0.0 - (STACKED_OFFSET * i);
- const double y = 0.0 - (STACKED_OFFSET * i);
-
- // Trace basic box path
- ganv_box_path(box, cr, x1 - x, y1 - y, x2 - x, y2 - y, 0.0);
-
- // Fill
- color_to_rgba(fill_color, &r, &g, &b, &a);
- cairo_set_source_rgba(cr, r, g, b, a);
-
- // Border
- if (impl->coords.border_width > 0.0) {
- cairo_fill_preserve(cr);
- color_to_rgba(border_color, &r, &g, &b, &a);
- cairo_set_source_rgba(cr, r, g, b, a);
- cairo_set_line_width(cr, impl->coords.border_width);
- if (dash_length > 0) {
- cairo_set_dash(cr, &dash_length, 1, box->node.impl->dash_offset);
- } else {
- cairo_set_dash(cr, &dash_length, 0, 0);
- }
- cairo_stroke(cr);
- } else {
- cairo_fill(cr);
- }
- }
-
- GanvItemClass* item_class = GANV_ITEM_CLASS(parent_class);
- item_class->draw(item, cr, cx, cy, cw, ch);
-}
-
-static double
-ganv_box_point(GanvItem* item, double x, double y, GanvItem** actual_item)
-{
- GanvBox* box = GANV_BOX(item);
- GanvBoxPrivate* impl = box->impl;
-
- *actual_item = NULL;
-
- double x1, y1, x2, y2;
- ganv_box_bounds_item(&impl->coords, &x1, &y1, &x2, &y2);
-
- // Point is inside the box (distance 0)
- if ((x >= x1) && (y >= y1) && (x <= x2) && (y <= y2)) {
- *actual_item = item;
- return 0.0;
- }
-
- // Point is outside the box
- double dx = 0.0;
- double dy = 0.0;
-
- // Find horizontal distance to nearest edge
- if (x < x1) {
- dx = x1 - x;
- } else if (x > x2) {
- dx = x - x2;
- }
-
- // Find vertical distance to nearest edge
- if (y < y1) {
- dy = y1 - y;
- } else if (y > y2) {
- dy = y - y2;
- }
-
- return sqrt((dx * dx) + (dy * dy));
-}
-
-static gboolean
-ganv_box_is_within(const GanvNode* self,
- double x1,
- double y1,
- double x2,
- double y2)
-{
- double bx1, by1, bx2, by2;
- g_object_get(G_OBJECT(self),
- "x1", &bx1,
- "y1", &by1,
- "x2", &bx2,
- "y2", &by2,
- NULL);
-
- ganv_item_i2w_pair(GANV_ITEM(self), &bx1, &by1, &bx2, &by2);
-
- return ( bx1 >= x1
- && by2 >= y1
- && bx2 <= x2
- && by2 <= y2);
-}
-
-static void
-ganv_box_default_set_width(GanvBox* box, double width)
-{
- box->impl->coords.x2 = ganv_box_get_x1(box) + width;
- ganv_item_request_update(GANV_ITEM(box));
-}
-
-static void
-ganv_box_default_set_height(GanvBox* box, double height)
-{
- box->impl->coords.y2 = ganv_box_get_y1(box) + height;
- ganv_item_request_update(GANV_ITEM(box));
-}
-
-static void
-ganv_box_class_init(GanvBoxClass* klass)
-{
- GObjectClass* gobject_class = (GObjectClass*)klass;
- GtkObjectClass* object_class = (GtkObjectClass*)klass;
- GanvItemClass* item_class = (GanvItemClass*)klass;
- GanvNodeClass* node_class = (GanvNodeClass*)klass;
-
- parent_class = GANV_NODE_CLASS(g_type_class_peek_parent(klass));
-
- gobject_class->set_property = ganv_box_set_property;
- gobject_class->get_property = ganv_box_get_property;
-
- g_object_class_install_property(
- gobject_class, PROP_X1, g_param_spec_double(
- "x1",
- _("x1"),
- _("Top left x coordinate."),
- -G_MAXDOUBLE, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_Y1, g_param_spec_double(
- "y1",
- _("y1"),
- _("Top left y coordinate."),
- -G_MAXDOUBLE, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_X2, g_param_spec_double(
- "x2",
- _("x2"),
- _("Bottom right x coordinate."),
- -G_MAXDOUBLE, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_Y2, g_param_spec_double(
- "y2",
- _("y2"),
- _("Bottom right y coordinate."),
- -G_MAXDOUBLE, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_RADIUS_TL, g_param_spec_double(
- "radius-tl",
- _("Top left radius"),
- _("The radius of the top left corner."),
- 0.0, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_RADIUS_TR, g_param_spec_double(
- "radius-tr",
- _("Top right radius"),
- _("The radius of the top right corner."),
- 0.0, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_RADIUS_BR, g_param_spec_double(
- "radius-br",
- _("Bottom right radius"),
- _("The radius of the bottom right corner."),
- 0.0, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_RADIUS_BL, g_param_spec_double(
- "radius-bl",
- _("Bottom left radius"),
- _("The radius of the bottom left corner."),
- 0.0, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_STACKED, g_param_spec_boolean(
- "stacked",
- _("Stacked"),
- _("Show box with a stacked appearance."),
- FALSE,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_BEVELED, g_param_spec_boolean(
- "beveled",
- _("Beveled"),
- _("Show radiused corners with a sharp bevel."),
- FALSE,
- G_PARAM_READWRITE));
-
- object_class->destroy = ganv_box_destroy;
-
- item_class->update = ganv_box_update;
- item_class->bounds = ganv_box_bounds;
- item_class->point = ganv_box_point;
- item_class->draw = ganv_box_draw;
-
- node_class->is_within = ganv_box_is_within;
-
- klass->set_width = ganv_box_default_set_width;
- klass->set_height = ganv_box_default_set_height;
-}
-
-void
-ganv_box_normalize(GanvBox* box)
-{
- if (box->impl->coords.x2 < box->impl->coords.x1) {
- const double tmp = box->impl->coords.x1;
- box->impl->coords.x1 = box->impl->coords.x2;
- box->impl->coords.x2 = tmp;
- }
- if (box->impl->coords.y2 < box->impl->coords.y1) {
- const double tmp = box->impl->coords.y1;
- box->impl->coords.y1 = box->impl->coords.y2;
- box->impl->coords.y2 = tmp;
- }
-}
-
-double
-ganv_box_get_x1(const GanvBox* box)
-{
- return box->impl->coords.x1;
-}
-
-double
-ganv_box_get_y1(const GanvBox* box)
-{
- return box->impl->coords.y1;
-}
-
-double
-ganv_box_get_x2(const GanvBox* box)
-{
- return box->impl->coords.x2;
-}
-
-double
-ganv_box_get_y2(const GanvBox* box)
-{
- return box->impl->coords.y2;
-}
-
-double
-ganv_box_get_width(const GanvBox* box)
-{
- return box->impl->coords.x2 - box->impl->coords.x1;
-}
-
-void
-ganv_box_set_width(GanvBox* box,
- double width)
-{
- GANV_BOX_GET_CLASS(box)->set_width(box, width);
-}
-
-double
-ganv_box_get_height(const GanvBox* box)
-{
- return box->impl->coords.y2 - box->impl->coords.y1;
-}
-
-void
-ganv_box_set_height(GanvBox* box,
- double height)
-{
- GANV_BOX_GET_CLASS(box)->set_height(box, height);
-}
-
-double
-ganv_box_get_border_width(const GanvBox* box)
-{
- return box->impl->coords.border_width;
-}
diff --git a/src/circle.c b/src/circle.c
deleted file mode 100644
index a69c207..0000000
--- a/src/circle.c
+++ /dev/null
@@ -1,467 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2015 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <math.h>
-#include <string.h>
-
-#include "ganv/canvas.h"
-#include "ganv/circle.h"
-
-#include "./color.h"
-#include "./boilerplate.h"
-#include "./gettext.h"
-#include "./ganv-private.h"
-
-G_DEFINE_TYPE_WITH_CODE(GanvCircle, ganv_circle, GANV_TYPE_NODE,
- G_ADD_PRIVATE(GanvCircle))
-
-static GanvNodeClass* parent_class;
-
-enum {
- PROP_0,
- PROP_RADIUS,
- PROP_RADIUS_EMS,
- PROP_FIT_LABEL
-};
-
-static void
-ganv_circle_init(GanvCircle* circle)
-{
- circle->impl = ganv_circle_get_instance_private(circle);
-
- memset(&circle->impl->coords, '\0', sizeof(GanvCircleCoords));
- circle->impl->coords.radius = 0.0;
- circle->impl->coords.radius_ems = 1.0;
- circle->impl->coords.width = 2.0;
- circle->impl->old_coords = circle->impl->coords;
- circle->impl->fit_label = TRUE;
-}
-
-static void
-ganv_circle_destroy(GtkObject* object)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_CIRCLE(object));
-
- if (GTK_OBJECT_CLASS(parent_class)->destroy) {
- (*GTK_OBJECT_CLASS(parent_class)->destroy)(object);
- }
-}
-
-static void
-ganv_circle_set_property(GObject* object,
- guint prop_id,
- const GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_CIRCLE(object));
-
- GanvCircle* circle = GANV_CIRCLE(object);
-
- switch (prop_id) {
- SET_CASE(RADIUS, double, circle->impl->coords.radius);
- SET_CASE(RADIUS_EMS, double, circle->impl->coords.radius_ems);
- SET_CASE(FIT_LABEL, boolean, circle->impl->fit_label);
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-
- if (prop_id == PROP_RADIUS_EMS) {
- ganv_circle_set_radius_ems(circle, circle->impl->coords.radius_ems);
- }
-}
-
-static void
-ganv_circle_get_property(GObject* object,
- guint prop_id,
- GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_CIRCLE(object));
-
- GanvCircle* circle = GANV_CIRCLE(object);
-
- switch (prop_id) {
- GET_CASE(RADIUS, double, circle->impl->coords.radius);
- GET_CASE(RADIUS_EMS, double, circle->impl->coords.radius_ems);
- GET_CASE(FIT_LABEL, boolean, circle->impl->fit_label);
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_circle_resize(GanvNode* self)
-{
- GanvNode* node = GANV_NODE(self);
- GanvCircle* circle = GANV_CIRCLE(self);
- GanvCanvas* canvas = GANV_CANVAS(GANV_ITEM(node)->impl->canvas);
-
- if (node->impl->label) {
- if (node->impl->label->impl->needs_layout) {
- ganv_text_layout(node->impl->label);
- }
-
- const double label_w = node->impl->label->impl->coords.width;
- const double label_h = node->impl->label->impl->coords.height;
- if (circle->impl->fit_label) {
- // Resize to fit text
- const double radius = MAX(label_w, label_h) / 2.0 + 3.0;
- if (radius != circle->impl->coords.radius) {
- ganv_item_set(GANV_ITEM(self),
- "radius", radius,
- NULL);
- }
- }
-
- // Center label
- ganv_item_set(GANV_ITEM(node->impl->label),
- "x", label_w / -2.0,
- "y", label_h / -2.0,
- NULL);
- }
-
- if (parent_class->resize) {
- parent_class->resize(self);
- }
-
- ganv_canvas_for_each_edge_on(
- canvas, node, (GanvEdgeFunc)ganv_edge_update_location, NULL);
-}
-
-static void
-ganv_circle_redraw_text(GanvNode* self)
-{
- GanvCircle* circle = GANV_CIRCLE(self);
- if (circle->impl->coords.radius_ems) {
- ganv_circle_set_radius_ems(circle, circle->impl->coords.radius_ems);
- }
-
- if (parent_class->redraw_text) {
- parent_class->redraw_text(self);
- }
-}
-
-static gboolean
-ganv_circle_is_within(const GanvNode* self,
- double x1,
- double y1,
- double x2,
- double y2)
-{
- const double x = GANV_ITEM(self)->impl->x;
- const double y = GANV_ITEM(self)->impl->y;
-
- return x >= x1
- && x <= x2
- && y >= y1
- && y <= y2;
-}
-
-static void
-ganv_circle_vector(const GanvNode* self,
- const GanvNode* other,
- double* x,
- double* y,
- double* dx,
- double* dy)
-{
- GanvCircle* circle = GANV_CIRCLE(self);
-
- const double cx = GANV_ITEM(self)->impl->x;
- const double cy = GANV_ITEM(self)->impl->y;
- const double other_x = GANV_ITEM(other)->impl->x;
- const double other_y = GANV_ITEM(other)->impl->y;
-
- const double border = circle->node.impl->border_width;
- const double xdist = other_x - cx;
- const double ydist = other_y - cy;
- const double h = sqrt((xdist * xdist) + (ydist * ydist));
- const double theta = asin(xdist / (h + DBL_EPSILON));
- const double y_mod = (cy < other_y) ? 1 : -1;
- const double ret_h = h - circle->impl->coords.radius - border / 2.0;
- const double ret_x = other_x - sin(theta) * ret_h;
- const double ret_y = other_y - cos(theta) * ret_h * y_mod;
-
- *x = ret_x;
- *y = ret_y;
- *dx = 0.0;
- *dy = 0.0;
-
- ganv_item_i2w(GANV_ITEM(circle)->impl->parent, x, y);
-}
-
-static void
-request_redraw(GanvItem* item,
- const GanvCircleCoords* coords,
- gboolean world)
-{
- const double w = coords->width;
-
- double x1 = coords->x - coords->radius - w;
- double y1 = coords->y - coords->radius - w;
- double x2 = coords->x + coords->radius + w;
- double y2 = coords->y + coords->radius + w;
-
- if (!world) {
- // Convert from parent-relative coordinates to world coordinates
- ganv_item_i2w_pair(item, &x1, &y1, &x2, &y2);
- }
-
- ganv_canvas_request_redraw_w(item->impl->canvas, x1, y1, x2, y2);
-}
-
-static void
-coords_i2w(GanvItem* item, GanvCircleCoords* coords)
-{
- ganv_item_i2w(item, &coords->x, &coords->y);
-}
-
-static void
-ganv_circle_bounds_item(GanvItem* item,
- double* x1, double* y1,
- double* x2, double* y2)
-{
- const GanvCircle* circle = GANV_CIRCLE(item);
- const GanvCircleCoords* coords = &circle->impl->coords;
- *x1 = coords->x - coords->radius - coords->width;
- *y1 = coords->y - coords->radius - coords->width;
- *x2 = coords->x + coords->radius + coords->width;
- *y2 = coords->y + coords->radius + coords->width;
-}
-
-static void
-ganv_circle_bounds(GanvItem* item,
- double* x1, double* y1,
- double* x2, double* y2)
-{
- ganv_circle_bounds_item(item, x1, y1, x2, y2);
-}
-
-static void
-ganv_circle_update(GanvItem* item, int flags)
-{
- GanvCircle* circle = GANV_CIRCLE(item);
- GanvCirclePrivate* impl = circle->impl;
- impl->coords.width = circle->node.impl->border_width;
-
- // Request redraw of old location
- request_redraw(item, &impl->old_coords, TRUE);
-
- // Store old coordinates in world relative coordinates in case the
- // group we are in moves between now and the next update
- impl->old_coords = impl->coords;
- coords_i2w(item, &impl->old_coords);
-
- // Update world-relative bounding box
- ganv_circle_bounds(item, &item->impl->x1, &item->impl->y1, &item->impl->x2, &item->impl->y2);
- ganv_item_i2w_pair(item, &item->impl->x1, &item->impl->y1, &item->impl->x2, &item->impl->y2);
-
- // Request redraw of new location
- request_redraw(item, &impl->coords, FALSE);
-
- GANV_ITEM_CLASS(parent_class)->update(item, flags);
-}
-
-static void
-ganv_circle_draw(GanvItem* item,
- cairo_t* cr, double cx, double cy, double cw, double ch)
-{
- GanvNode* node = GANV_NODE(item);
- GanvCircle* circle = GANV_CIRCLE(item);
- GanvCirclePrivate* impl = circle->impl;
-
- double r, g, b, a;
-
- double x = impl->coords.x;
- double y = impl->coords.y;
- ganv_item_i2w(item, &x, &y);
-
- double dash_length, border_color, fill_color;
- ganv_node_get_draw_properties(
- &circle->node, &dash_length, &border_color, &fill_color);
-
- // Fill
- cairo_new_path(cr);
- cairo_arc(cr,
- x,
- y,
- impl->coords.radius + (impl->coords.width / 2.0),
- 0, 2 * G_PI);
- color_to_rgba(fill_color, &r, &g, &b, &a);
- cairo_set_source_rgba(cr, r, g, b, a);
- cairo_fill(cr);
-
- // Border
- cairo_arc(cr,
- x,
- y,
- impl->coords.radius,
- 0, 2 * G_PI);
- color_to_rgba(border_color, &r, &g, &b, &a);
- cairo_set_source_rgba(cr, r, g, b, a);
- cairo_set_line_width(cr, impl->coords.width);
- if (dash_length > 0) {
- cairo_set_dash(cr, &dash_length, 1, circle->node.impl->dash_offset);
- } else {
- cairo_set_dash(cr, &dash_length, 0, 0);
- }
- cairo_stroke(cr);
-
- // Draw label
- if (node->impl->label) {
- GanvItem* label_item = GANV_ITEM(node->impl->label);
-
- if (label_item->object.flags & GANV_ITEM_VISIBLE) {
- GANV_ITEM_GET_CLASS(label_item)->draw(
- label_item, cr, cx, cy, cw, ch);
- }
- }
-}
-
-static double
-ganv_circle_point(GanvItem* item, double x, double y, GanvItem** actual_item)
-{
- const GanvCircle* circle = GANV_CIRCLE(item);
- const GanvCircleCoords* coords = &circle->impl->coords;
-
- *actual_item = item;
-
- const double dx = fabs(x - coords->x);
- const double dy = fabs(y - coords->y);
- const double d = sqrt((dx * dx) + (dy * dy));
-
- if (d <= coords->radius + coords->width) {
- // Point is inside the circle
- return 0.0;
- } else {
- // Distance from the edge of the circle
- return d - (coords->radius + coords->width);
- }
-}
-
-static void
-ganv_circle_class_init(GanvCircleClass* klass)
-{
- GObjectClass* gobject_class = (GObjectClass*)klass;
- GtkObjectClass* object_class = (GtkObjectClass*)klass;
- GanvItemClass* item_class = (GanvItemClass*)klass;
- GanvNodeClass* node_class = (GanvNodeClass*)klass;
-
- parent_class = GANV_NODE_CLASS(g_type_class_peek_parent(klass));
-
- gobject_class->set_property = ganv_circle_set_property;
- gobject_class->get_property = ganv_circle_get_property;
-
- g_object_class_install_property(
- gobject_class, PROP_RADIUS, g_param_spec_double(
- "radius",
- _("Radius"),
- _("The radius of the circle."),
- 0, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_RADIUS_EMS, g_param_spec_double(
- "radius-ems",
- _("Radius in ems"),
- _("The radius of the circle in ems."),
- 0, G_MAXDOUBLE,
- 1.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_FIT_LABEL, g_param_spec_boolean(
- "fit-label",
- _("Fit label"),
- _("If true, expand circle to fit its label"),
- TRUE,
- (GParamFlags)G_PARAM_READWRITE));
-
- object_class->destroy = ganv_circle_destroy;
-
- node_class->resize = ganv_circle_resize;
- node_class->is_within = ganv_circle_is_within;
- node_class->tail_vector = ganv_circle_vector;
- node_class->head_vector = ganv_circle_vector;
- node_class->redraw_text = ganv_circle_redraw_text;
-
- item_class->update = ganv_circle_update;
- item_class->bounds = ganv_circle_bounds;
- item_class->point = ganv_circle_point;
- item_class->draw = ganv_circle_draw;
-}
-
-GanvCircle*
-ganv_circle_new(GanvCanvas* canvas,
- const char* first_property_name, ...)
-{
- GanvCircle* circle = GANV_CIRCLE(
- g_object_new(ganv_circle_get_type(), "canvas", canvas, NULL));
-
- va_list args;
- va_start(args, first_property_name);
- g_object_set_valist(G_OBJECT(circle), first_property_name, args);
- va_end(args);
-
- return circle;
-}
-
-double
-ganv_circle_get_radius(const GanvCircle* circle)
-{
- return circle->impl->coords.radius;
-}
-
-void
-ganv_circle_set_radius(GanvCircle* circle, double radius)
-{
- circle->impl->coords.radius = radius;
- ganv_item_request_update(GANV_ITEM(circle));
-}
-
-double
-ganv_circle_get_radius_ems(const GanvCircle* circle)
-{
- return circle->impl->coords.radius_ems;
-}
-
-void
-ganv_circle_set_radius_ems(GanvCircle* circle, double ems)
-{
- GanvCanvas* canvas = GANV_CANVAS(GANV_ITEM(circle)->impl->canvas);
- const double points = ganv_canvas_get_font_size(canvas);
- circle->impl->coords.radius_ems = ems;
- circle->impl->coords.radius = points * ems;
- ganv_item_request_update(GANV_ITEM(circle));
-}
-
-gboolean
-ganv_circle_get_fit_label(const GanvCircle* circle)
-{
- return circle->impl->fit_label;
-}
-
-void
-ganv_circle_set_fit_label(GanvCircle* circle, gboolean fit_label)
-{
- circle->impl->fit_label = fit_label;
- ganv_item_request_update(GANV_ITEM(circle));
-}
diff --git a/src/color.h b/src/color.h
deleted file mode 100644
index ca52d98..0000000
--- a/src/color.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2015 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef GANV_UTIL_H
-#define GANV_UTIL_H
-
-#include <glib.h>
-
-#ifdef GANV_USE_LIGHT_THEME
-# define DEFAULT_BACKGROUND_COLOR 0xFFFFFFFF
-# define DEFAULT_TEXT_COLOR 0x000000FF
-# define DIM_TEXT_COLOR 0x333333BB
-# define DEFAULT_FILL_COLOR 0xEEEEEEFF
-# define DEFAULT_BORDER_COLOR 0x000000FF
-# define PORT_BORDER_COLOR(fill) 0x000000FF
-# define EDGE_COLOR(base) highlight_color(tail_color, -48)
-#else
-# define DEFAULT_BACKGROUND_COLOR 0x000000FF
-# define DEFAULT_TEXT_COLOR 0xFFFFFFFF
-# define DIM_TEXT_COLOR 0xCCCCCCBB
-# define DEFAULT_FILL_COLOR 0x1E2224FF
-# define DEFAULT_BORDER_COLOR 0x3E4244FF
-# define PORT_BORDER_COLOR(fill) highlight_color(fill, 0x20)
-# define EDGE_COLOR(base) highlight_color(tail_color, 48)
-#endif
-
-static inline void
-color_to_rgba(guint color, double* r, double* g, double* b, double* a)
-{
- *r = ((color >> 24) & 0xFF) / 255.0;
- *g = ((color >> 16) & 0xFF) / 255.0;
- *b = ((color >> 8) & 0xFF) / 255.0;
- *a = ((color) & 0xFF) / 255.0;
-}
-
-static inline guint
-highlight_color(guint c, guint delta)
-{
- const guint max_char = 255;
- const guint r = MIN((c >> 24) + delta, max_char);
- const guint g = MIN(((c >> 16) & 0xFF) + delta, max_char);
- const guint b = MIN(((c >> 8) & 0xFF) + delta, max_char);
- const guint a = c & 0xFF;
-
- return ((((guint)(r)) << 24) |
- (((guint)(g)) << 16) |
- (((guint)(b)) << 8) |
- (((guint)(a))));
-}
-
-#endif // GANV_UTIL_H
diff --git a/src/edge.c b/src/edge.c
deleted file mode 100644
index a22bc73..0000000
--- a/src/edge.c
+++ /dev/null
@@ -1,786 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2016 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <math.h>
-#include <string.h>
-
-#include <cairo.h>
-
-#include "ganv/canvas.h"
-#include "ganv/edge.h"
-#include "ganv/node.h"
-
-#include "./boilerplate.h"
-#include "./color.h"
-#include "./gettext.h"
-
-#include "color.h"
-#include "ganv-private.h"
-
-#define ARROW_DEPTH 32
-#define ARROW_BREADTH 32
-
-// Uncomment to see control point path as straight lines
-//#define GANV_DEBUG_CURVES 1
-
-// Uncomment along with GANV_DEBUG_CURVES to see bounding box (buggy)
-//#define GANV_DEBUG_BOUNDS 1
-
-enum {
- PROP_0,
- PROP_TAIL,
- PROP_HEAD,
- PROP_WIDTH,
- PROP_HANDLE_RADIUS,
- PROP_DASH_LENGTH,
- PROP_DASH_OFFSET,
- PROP_COLOR,
- PROP_CONSTRAINING,
- PROP_CURVED,
- PROP_ARROWHEAD,
- PROP_SELECTED,
- PROP_HIGHLIGHTED,
- PROP_GHOST
-};
-
-G_DEFINE_TYPE_WITH_CODE(GanvEdge, ganv_edge, GANV_TYPE_ITEM,
- G_ADD_PRIVATE(GanvEdge))
-
-static GanvItemClass* parent_class;
-
-static void
-ganv_edge_init(GanvEdge* edge)
-{
- GanvEdgePrivate* impl = ganv_edge_get_instance_private(edge);
-
- edge->impl = impl;
-
- impl->tail = NULL;
- impl->head = NULL;
-
- memset(&impl->coords, '\0', sizeof(GanvEdgeCoords));
- impl->coords.width = 2.0;
- impl->coords.handle_radius = 4.0;
- impl->coords.constraining = TRUE;
- impl->coords.curved = FALSE;
- impl->coords.arrowhead = FALSE;
-
- impl->old_coords = impl->coords;
- impl->dash_length = 0.0;
- impl->dash_offset = 0.0;
- impl->color = 0;
-}
-
-static void
-ganv_edge_destroy(GtkObject* object)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_EDGE(object));
-
- GanvEdge* edge = GANV_EDGE(object);
- GanvCanvas* canvas = GANV_CANVAS(edge->item.impl->canvas);
- if (canvas && !edge->impl->ghost) {
- edge->item.impl->canvas = NULL;
- }
- edge->item.impl->parent = NULL;
-
- if (GTK_OBJECT_CLASS(parent_class)->destroy) {
- (*GTK_OBJECT_CLASS(parent_class)->destroy)(object);
- }
-}
-
-static void
-ganv_edge_set_property(GObject* object,
- guint prop_id,
- const GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_EDGE(object));
-
- GanvItem* item = GANV_ITEM(object);
- GanvEdge* edge = GANV_EDGE(object);
- GanvEdgePrivate* impl = edge->impl;
- GanvEdgeCoords* coords = &impl->coords;
-
- switch (prop_id) {
- SET_CASE(WIDTH, double, coords->width);
- SET_CASE(HANDLE_RADIUS, double, coords->handle_radius);
- SET_CASE(DASH_LENGTH, double, impl->dash_length);
- SET_CASE(DASH_OFFSET, double, impl->dash_offset);
- SET_CASE(COLOR, uint, impl->color);
- SET_CASE(CONSTRAINING, boolean, impl->coords.constraining);
- SET_CASE(CURVED, boolean, impl->coords.curved);
- SET_CASE(ARROWHEAD, boolean, impl->coords.arrowhead);
- SET_CASE(SELECTED, boolean, impl->selected);
- SET_CASE(HIGHLIGHTED, boolean, impl->highlighted);
- SET_CASE(GHOST, boolean, impl->ghost);
- case PROP_TAIL: {
- const gobject tmp = g_value_get_object(value);
- if (impl->tail != tmp) {
- impl->tail = GANV_NODE(tmp);
- ganv_item_request_update(item);
- }
- break;
- }
- case PROP_HEAD: {
- const gobject tmp = g_value_get_object(value);
- if (impl->head != tmp) {
- impl->head = GANV_NODE(tmp);
- ganv_item_request_update(item);
- }
- break;
- }
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_edge_get_property(GObject* object,
- guint prop_id,
- GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_EDGE(object));
-
- GanvEdge* edge = GANV_EDGE(object);
- GanvEdgePrivate* impl = edge->impl;
-
- switch (prop_id) {
- GET_CASE(TAIL, object, impl->tail);
- GET_CASE(HEAD, object, impl->head);
- GET_CASE(WIDTH, double, impl->coords.width);
- SET_CASE(HANDLE_RADIUS, double, impl->coords.handle_radius);
- GET_CASE(DASH_LENGTH, double, impl->dash_length);
- GET_CASE(DASH_OFFSET, double, impl->dash_offset);
- GET_CASE(COLOR, uint, impl->color);
- GET_CASE(CONSTRAINING, boolean, impl->coords.constraining);
- GET_CASE(CURVED, boolean, impl->coords.curved);
- GET_CASE(ARROWHEAD, boolean, impl->coords.arrowhead);
- GET_CASE(SELECTED, boolean, impl->selected);
- GET_CASE(HIGHLIGHTED, boolean, impl->highlighted);
- SET_CASE(GHOST, boolean, impl->ghost);
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-void
-ganv_edge_request_redraw(GanvItem* item,
- const GanvEdgeCoords* coords)
-{
- GanvCanvas* canvas = item->impl->canvas;
- const double w = coords->width;
- if (coords->curved) {
- const double src_x = coords->x1;
- const double src_y = coords->y1;
- const double dst_x = coords->x2;
- const double dst_y = coords->y2;
- const double join_x = (src_x + dst_x) / 2.0;
- const double join_y = (src_y + dst_y) / 2.0;
- const double src_x1 = coords->cx1;
- const double src_y1 = coords->cy1;
- const double dst_x1 = coords->cx2;
- const double dst_y1 = coords->cy2;
-
- const double r1x1 = MIN(MIN(src_x, join_x), src_x1);
- const double r1y1 = MIN(MIN(src_y, join_y), src_y1);
- const double r1x2 = MAX(MAX(src_x, join_x), src_x1);
- const double r1y2 = MAX(MAX(src_y, join_y), src_y1);
- ganv_canvas_request_redraw_w(canvas,
- r1x1 - w, r1y1 - w,
- r1x2 + w, r1y2 + w);
-
- const double r2x1 = MIN(MIN(dst_x, join_x), dst_x1);
- const double r2y1 = MIN(MIN(dst_y, join_y), dst_y1);
- const double r2x2 = MAX(MAX(dst_x, join_x), dst_x1);
- const double r2y2 = MAX(MAX(dst_y, join_y), dst_y1);
- ganv_canvas_request_redraw_w(canvas,
- r2x1 - w, r2y1 - w,
- r2x2 + w, r2y2 + w);
-
- } else {
- const double x1 = MIN(coords->x1, coords->x2);
- const double y1 = MIN(coords->y1, coords->y2);
- const double x2 = MAX(coords->x1, coords->x2);
- const double y2 = MAX(coords->y1, coords->y2);
-
- ganv_canvas_request_redraw_w(canvas,
- x1 - w, y1 - w,
- x2 + w, y2 + w);
- }
-
- if (coords->handle_radius > 0.0) {
- ganv_canvas_request_redraw_w(
- canvas,
- coords->handle_x - coords->handle_radius - w,
- coords->handle_y - coords->handle_radius - w,
- coords->handle_x + coords->handle_radius + w,
- coords->handle_y + coords->handle_radius + w);
- }
-
- if (coords->arrowhead) {
- ganv_canvas_request_redraw_w(
- canvas,
- coords->x2 - ARROW_DEPTH,
- coords->y2 - ARROW_BREADTH,
- coords->x2 + ARROW_DEPTH,
- coords->y2 + ARROW_BREADTH);
- }
-}
-
-static void
-ganv_edge_bounds(GanvItem* item,
- double* x1, double* y1,
- double* x2, double* y2)
-{
- GanvEdge* edge = GANV_EDGE(item);
- GanvEdgePrivate* impl = edge->impl;
- GanvEdgeCoords* coords = &impl->coords;
- const double w = coords->width;
-
- if (coords->curved) {
- *x1 = MIN(coords->x1, MIN(coords->cx1, MIN(coords->x2, coords->cx2))) - w;
- *y1 = MIN(coords->y1, MIN(coords->cy1, MIN(coords->y2, coords->cy2))) - w;
- *x2 = MAX(coords->x1, MAX(coords->cx1, MAX(coords->x2, coords->cx2))) + w;
- *y2 = MAX(coords->y1, MAX(coords->cy1, MAX(coords->y2, coords->cy2))) + w;
- } else {
- *x1 = MIN(impl->coords.x1, impl->coords.x2) - w;
- *y1 = MIN(impl->coords.y1, impl->coords.y2) - w;
- *x2 = MAX(impl->coords.x1, impl->coords.x2) + w;
- *y2 = MAX(impl->coords.y1, impl->coords.y2) + w;
- }
-}
-
-void
-ganv_edge_get_coords(const GanvEdge* edge, GanvEdgeCoords* coords)
-{
- GanvEdgePrivate* impl = edge->impl;
-
- GANV_NODE_GET_CLASS(impl->tail)->tail_vector(
- impl->tail, impl->head,
- &coords->x1, &coords->y1, &coords->cx1, &coords->cy1);
- GANV_NODE_GET_CLASS(impl->head)->head_vector(
- impl->head, impl->tail,
- &coords->x2, &coords->y2, &coords->cx2, &coords->cy2);
-
- const double dx = coords->x2 - coords->x1;
- const double dy = coords->y2 - coords->y1;
-
- coords->handle_x = coords->x1 + (dx / 2.0);
- coords->handle_y = coords->y1 + (dy / 2.0);
-
- const double abs_dx = fabs(dx);
- const double abs_dy = fabs(dy);
-
- coords->cx1 = coords->x1 + (coords->cx1 * (abs_dx / 4.0));
- coords->cy1 = coords->y1 + (coords->cy1 * (abs_dy / 4.0));
- coords->cx2 = coords->x2 + (coords->cx2 * (abs_dx / 4.0));
- coords->cy2 = coords->y2 + (coords->cy2 * (abs_dy / 4.0));
-}
-
-static void
-ganv_edge_update(GanvItem* item, int flags)
-{
- GanvEdge* edge = GANV_EDGE(item);
- GanvEdgePrivate* impl = edge->impl;
-
- // Request redraw of old location
- ganv_edge_request_redraw(item, &impl->old_coords);
-
- // Calculate new coordinates from tail and head
- ganv_edge_get_coords(edge, &impl->coords);
-
- // Update old coordinates
- impl->old_coords = impl->coords;
-
- // Get bounding box
- double x1, x2, y1, y2;
- ganv_edge_bounds(item, &x1, &y1, &x2, &y2);
-
- // Ensure bounding box has non-zero area
- if (x1 == x2) {
- x2 += 1.0;
- }
- if (y1 == y2) {
- y2 += 1.0;
- }
-
- // Update world-relative bounding box
- item->impl->x1 = x1;
- item->impl->y1 = y1;
- item->impl->x2 = x2;
- item->impl->y2 = y2;
- ganv_item_i2w_pair(item, &item->impl->x1, &item->impl->y1, &item->impl->x2, &item->impl->y2);
-
- // Request redraw of new location
- ganv_edge_request_redraw(item, &impl->coords);
-
- parent_class->update(item, flags);
-}
-
-static void
-ganv_edge_draw(GanvItem* item,
- cairo_t* cr, double cx, double cy, double cw, double ch)
-{
- GanvEdge* edge = GANV_EDGE(item);
- GanvEdgePrivate* impl = edge->impl;
-
- double src_x = impl->coords.x1;
- double src_y = impl->coords.y1;
- double dst_x = impl->coords.x2;
- double dst_y = impl->coords.y2;
- double dx = src_x - dst_x;
- double dy = src_y - dst_y;
-
- double r, g, b, a;
- if (impl->highlighted) {
- color_to_rgba(highlight_color(impl->color, 0x40), &r, &g, &b, &a);
- } else {
- color_to_rgba(impl->color, &r, &g, &b, &a);
- }
- cairo_set_source_rgba(cr, r, g, b, a);
-
- cairo_set_line_width(cr, impl->coords.width);
- cairo_move_to(cr, src_x, src_y);
-
- const double dash_length = (impl->selected ? 4.0 : impl->dash_length);
- if (dash_length > 0.0) {
- double dashed[2] = { dash_length, dash_length };
- cairo_set_dash(cr, dashed, 2, impl->dash_offset);
- } else {
- cairo_set_dash(cr, &dash_length, 0, 0);
- }
-
- const double join_x = (src_x + dst_x) / 2.0;
- const double join_y = (src_y + dst_y) / 2.0;
-
- if (impl->coords.curved) {
- // Curved line as 2 paths which join at the middle point
-
- // Path 1 (src_x, src_y) -> (join_x, join_y)
- // Control point 1
- const double src_x1 = impl->coords.cx1;
- const double src_y1 = impl->coords.cy1;
- // Control point 2
- const double src_x2 = (join_x + src_x1) / 2.0;
- const double src_y2 = (join_y + src_y1) / 2.0;
-
- // Path 2, (join_x, join_y) -> (dst_x, dst_y)
- // Control point 1
- const double dst_x1 = impl->coords.cx2;
- const double dst_y1 = impl->coords.cy2;
- // Control point 2
- const double dst_x2 = (join_x + dst_x1) / 2.0;
- const double dst_y2 = (join_y + dst_y1) / 2.0;
-
- cairo_move_to(cr, src_x, src_y);
- cairo_curve_to(cr, src_x1, src_y1, src_x2, src_y2, join_x, join_y);
- cairo_curve_to(cr, dst_x2, dst_y2, dst_x1, dst_y1, dst_x, dst_y);
-
-#ifdef GANV_DEBUG_CURVES
- cairo_stroke(cr);
- cairo_save(cr);
- cairo_set_source_rgba(cr, 1.0, 0, 0, 0.5);
-
- cairo_move_to(cr, src_x, src_y);
- cairo_line_to(cr, src_x1, src_y1);
- cairo_stroke(cr);
-
- cairo_move_to(cr, join_x, join_y);
- cairo_line_to(cr, src_x2, src_y2);
- cairo_stroke(cr);
-
- cairo_move_to(cr, join_x, join_y);
- cairo_line_to(cr, dst_x2, dst_y2);
- cairo_stroke(cr);
-
- cairo_move_to(cr, dst_x, dst_y);
- cairo_line_to(cr, dst_x1, dst_y1);
- cairo_stroke(cr);
-
-#ifdef GANV_DEBUG_BOUNDS
- double bounds_x1, bounds_y1, bounds_x2, bounds_y2;
- ganv_edge_bounds(item, &bounds_x1, &bounds_y1, &bounds_x2, &bounds_y2);
- cairo_rectangle(cr,
- bounds_x1, bounds_y1,
- bounds_x2 - bounds_x1, bounds_y2 - bounds_y1);
-#endif
-
- cairo_restore(cr);
-#endif
-
- cairo_stroke(cr);
- if (impl->coords.arrowhead) {
- cairo_move_to(cr, dst_x - 12, dst_y - 4);
- cairo_line_to(cr, dst_x, dst_y);
- cairo_line_to(cr, dst_x - 12, dst_y + 4);
- cairo_close_path(cr);
- cairo_stroke_preserve(cr);
- cairo_fill(cr);
- }
-
- } else {
- // Straight line from (x1, y1) to (x2, y2)
- cairo_move_to(cr, src_x, src_y);
- cairo_line_to(cr, dst_x, dst_y);
- cairo_stroke(cr);
-
- if (impl->coords.arrowhead) {
- const double ah = sqrt(dx * dx + dy * dy);
- const double adx = dx / ah * 8.0;
- const double ady = dy / ah * 8.0;
-
- cairo_move_to(cr,
- dst_x + adx - ady/1.5,
- dst_y + ady + adx/1.5);
- cairo_set_line_join(cr, CAIRO_LINE_JOIN_BEVEL);
- cairo_line_to(cr, dst_x, dst_y);
- cairo_set_line_join(cr, CAIRO_LINE_JOIN_MITER);
- cairo_line_to(cr,
- dst_x + adx + ady/1.5,
- dst_y + ady - adx/1.5);
- cairo_close_path(cr);
- cairo_stroke_preserve(cr);
- cairo_fill(cr);
- }
- }
-
- if (!ganv_canvas_exporting(item->impl->canvas) &&
- impl->coords.handle_radius > 0.0) {
- cairo_move_to(cr, join_x, join_y);
- cairo_arc(cr, join_x, join_y, impl->coords.handle_radius, 0, 2 * G_PI);
- cairo_fill(cr);
- }
-}
-
-static double
-ganv_edge_point(GanvItem* item, double x, double y, GanvItem** actual_item)
-{
- const GanvEdge* edge = GANV_EDGE(item);
- const GanvEdgeCoords* coords = &edge->impl->coords;
-
- const double dx = fabs(x - coords->handle_x);
- const double dy = fabs(y - coords->handle_y);
- const double d = sqrt((dx * dx) + (dy * dy));
-
- *actual_item = item;
-
- if (d <= coords->handle_radius) {
- // Point is inside the handle
- return 0.0;
- } else {
- // Distance from the edge of the handle
- return d - (coords->handle_radius + coords->width);
- }
-}
-
-gboolean
-ganv_edge_is_within(const GanvEdge* edge,
- double x1,
- double y1,
- double x2,
- double y2)
-{
- const double handle_x = edge->impl->coords.handle_x;
- const double handle_y = edge->impl->coords.handle_y;
-
- return handle_x >= x1
- && handle_x <= x2
- && handle_y >= y1
- && handle_y <= y2;
-}
-
-static void
-ganv_edge_class_init(GanvEdgeClass* klass)
-{
- GObjectClass* gobject_class = (GObjectClass*)klass;
- GtkObjectClass* object_class = (GtkObjectClass*)klass;
- GanvItemClass* item_class = (GanvItemClass*)klass;
-
- parent_class = GANV_ITEM_CLASS(g_type_class_peek_parent(klass));
-
- gobject_class->set_property = ganv_edge_set_property;
- gobject_class->get_property = ganv_edge_get_property;
-
- g_object_class_install_property(
- gobject_class, PROP_TAIL, g_param_spec_object(
- "tail",
- _("Tail"),
- _("Node this edge starts from."),
- GANV_TYPE_NODE,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_HEAD, g_param_spec_object(
- "head",
- _("Head"),
- _("Node this edge ends at."),
- GANV_TYPE_NODE,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_WIDTH, g_param_spec_double(
- "width",
- _("Line width"),
- _("Width of edge line."),
- 0.0, G_MAXDOUBLE,
- 2.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_HANDLE_RADIUS, g_param_spec_double(
- "handle-radius",
- _("Gandle radius"),
- _("Radius of handle in canvas units."),
- 0.0, G_MAXDOUBLE,
- 4.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_DASH_LENGTH, g_param_spec_double(
- "dash-length",
- _("Line dash length"),
- _("Length of line dashes, or zero for no dashing."),
- 0.0, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_DASH_OFFSET, g_param_spec_double(
- "dash-offset",
- _("Line dash offset"),
- _("Start offset for line dashes, used for selected animation."),
- 0.0, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_COLOR, g_param_spec_uint(
- "color",
- _("Color"),
- _("Line color as an RGBA integer."),
- 0, G_MAXUINT,
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_CONSTRAINING, g_param_spec_boolean(
- "constraining",
- _("Constraining"),
- _("Whether edge should constrain the layout."),
- 1,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_CURVED, g_param_spec_boolean(
- "curved",
- _("Curved"),
- _("Whether line should be curved rather than straight."),
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_ARROWHEAD, g_param_spec_boolean(
- "arrowhead",
- _("Arrowhead"),
- _("Whether to show an arrowhead at the head of this edge."),
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_SELECTED, g_param_spec_boolean(
- "selected",
- _("Selected"),
- _("Whether this edge is selected."),
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_HIGHLIGHTED, g_param_spec_boolean(
- "highlighted",
- _("Highlighted"),
- _("Whether to highlight the edge."),
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_GHOST, g_param_spec_boolean(
- "ghost",
- _("Ghost"),
- _("Whether this edge is a `ghost', which is an edge that is not "
- "added to the canvas data structures. Ghost edges are used for "
- "temporary edges that are not considered `real', e.g. the edge "
- "made while dragging to make a connection."),
- 0,
- G_PARAM_READWRITE));
-
- object_class->destroy = ganv_edge_destroy;
-
- item_class->update = ganv_edge_update;
- item_class->bounds = ganv_edge_bounds;
- item_class->point = ganv_edge_point;
- item_class->draw = ganv_edge_draw;
-}
-
-GanvEdge*
-ganv_edge_new(GanvCanvas* canvas,
- GanvNode* tail,
- GanvNode* head,
- const char* first_prop_name, ...)
-{
- GanvEdge* edge = GANV_EDGE(
- g_object_new(ganv_edge_get_type(), NULL));
-
- va_list args;
- va_start(args, first_prop_name);
- ganv_item_construct(&edge->item,
- GANV_ITEM(ganv_canvas_root(canvas)),
- first_prop_name, args);
- va_end(args);
-
- edge->impl->tail = tail;
- edge->impl->head = head;
-
- if (!edge->impl->color) {
- const guint tail_color = GANV_NODE(tail)->impl->fill_color;
- g_object_set(G_OBJECT(edge),
- "color", EDGE_COLOR(tail_color),
- NULL);
- }
-
- if (!edge->impl->ghost) {
- ganv_canvas_add_edge(canvas, edge);
- }
- return edge;
-}
-
-void
-ganv_edge_update_location(GanvEdge* edge)
-{
- ganv_item_request_update(GANV_ITEM(edge));
-}
-
-gboolean
-ganv_edge_get_constraining(const GanvEdge* edge)
-{
- return edge->impl->coords.constraining;
-}
-
-void
-ganv_edge_set_constraining(GanvEdge* edge, gboolean constraining)
-{
- edge->impl->coords.constraining = constraining;
- ganv_edge_request_redraw(GANV_ITEM(edge), &edge->impl->coords);
-}
-
-gboolean
-ganv_edge_get_curved(const GanvEdge* edge)
-{
- return edge->impl->coords.curved;
-}
-
-void
-ganv_edge_set_curved(GanvEdge* edge, gboolean curved)
-{
- edge->impl->coords.curved = curved;
- ganv_edge_request_redraw(GANV_ITEM(edge), &edge->impl->coords);
-}
-
-void
-ganv_edge_set_selected(GanvEdge* edge, gboolean selected)
-{
- GanvCanvas* canvas = GANV_CANVAS(edge->item.impl->canvas);
- if (selected) {
- ganv_canvas_select_edge(canvas, edge);
- } else {
- ganv_canvas_unselect_edge(canvas, edge);
- }
-}
-
-void
-ganv_edge_select(GanvEdge* edge)
-{
- ganv_edge_set_selected(edge, TRUE);
-}
-
-void
-ganv_edge_unselect(GanvEdge* edge)
-{
- ganv_edge_set_selected(edge, FALSE);
-}
-
-void
-ganv_edge_highlight(GanvEdge* edge)
-{
- ganv_edge_set_highlighted(edge, TRUE);
-}
-
-void
-ganv_edge_unhighlight(GanvEdge* edge)
-{
- ganv_edge_set_highlighted(edge, FALSE);
-}
-
-void
-ganv_edge_set_highlighted(GanvEdge* edge, gboolean highlighted)
-{
- edge->impl->highlighted = highlighted;
- ganv_edge_request_redraw(GANV_ITEM(edge), &edge->impl->coords);
-}
-
-void
-ganv_edge_tick(GanvEdge* edge, double seconds)
-{
- ganv_item_set(GANV_ITEM(edge),
- "dash-offset", seconds * 8.0,
- NULL);
-}
-
-void
-ganv_edge_disconnect(GanvEdge* edge)
-{
- if (!edge->impl->ghost) {
- ganv_canvas_disconnect_edge(
- GANV_CANVAS(edge->item.impl->canvas),
- edge);
- }
-}
-
-void
-ganv_edge_remove(GanvEdge* edge)
-{
- if (!edge->impl->ghost) {
- ganv_canvas_remove_edge(
- GANV_CANVAS(edge->item.impl->canvas),
- edge);
- }
-}
-
-GanvNode*
-ganv_edge_get_tail(const GanvEdge* edge)
-{
- return edge->impl->tail;
-}
-
-GanvNode*
-ganv_edge_get_head(const GanvEdge* edge)
-{
- return edge->impl->head;
-}
diff --git a/src/fdgl.hpp b/src/fdgl.hpp
deleted file mode 100644
index 38fded1..0000000
--- a/src/fdgl.hpp
+++ /dev/null
@@ -1,166 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2015 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <float.h>
-#include <math.h>
-
-static const double CHARGE_KE = 4000000.0;
-static const double EDGE_K = 16.0;
-static const double EDGE_LEN = 0.1;
-
-struct Region {
- Vector pos;
- Vector area;
-};
-
-inline Vector
-vec_add(const Vector& a, const Vector& b)
-{
- const Vector result = { a.x + b.x, a.y + b.y };
- return result;
-}
-
-inline Vector
-vec_sub(const Vector& a, const Vector& b)
-{
- const Vector result = { a.x - b.x, a.y - b.y };
- return result;
-}
-
-inline Vector
-vec_mult(const Vector& a, double m)
-{
- const Vector result = { a.x * m, a.y * m };
- return result;
-}
-
-inline double
-vec_mult(const Vector& a, const Vector& b)
-{
- return a.x * b.x + a.y * b.y;
-}
-
-/** Magnitude. */
-inline double
-vec_mag(const Vector& vec)
-{
- return sqrt(vec.x * vec.x + vec.y * vec.y);
-}
-
-/** Reciprocal of magnitude. */
-inline double
-vec_rmag(const Vector& vec)
-{
- return 1.0 / sqrt(vec.x * vec.x + vec.y * vec.y);
-}
-
-/** Hooke's law */
-inline Vector
-spring_force(const Vector& a, const Vector& b, double length, double k)
-{
- const Vector vec = vec_sub(b, a);
- const double mag = vec_mag(vec);
- const double displacement = length - mag;
- return vec_mult(vec, k * displacement * 0.5 / mag);
-}
-
-/** Spring force with a directional force to align with flow direction. */
-static const Vector
-edge_force(const Vector& dir, const Vector& hpos, const Vector& tpos)
-{
- return vec_add(dir, spring_force(hpos, tpos, EDGE_LEN, EDGE_K));
-}
-
-/** Constant tide force, does not vary with distance. */
-inline Vector
-tide_force(const Vector& a, const Vector& b, double power)
-{
- static const double G = 0.0000000000667;
- const Vector vec = vec_sub(a, b);
- const double mag = vec_mag(vec);
- return vec_mult(vec, G * power / mag);
-}
-
-inline double
-rect_distance(Vector* vec,
- const double ax1, const double ay1,
- const double ax2, const double ay2,
- const double bx1, const double by1,
- const double bx2, const double by2)
-{
- vec->x = 0.0;
- vec->y = 0.0;
-
- if (ax2 <= bx1) { // A is completely to the left of B
- vec->x = ax2 - bx1;
- if (ay2 <= by1) { // Top Left
- const double dx = bx1 - ax2;
- const double dy = by1 - ay2;
- vec->y = ay2 - by1;
- return sqrt(dx * dx + dy * dy);
- } else if (ay1 >= by2) { // Bottom left
- const double dx = bx1 - ax2;
- const double dy = ay1 - by2;
- vec->y = ay1 - by2;
- return sqrt(dx * dx + dy * dy);
- } else { // Left
- return bx1 - ax2;
- }
- } else if (ax1 >= bx2) { // A is completely to the right of B
- vec->x = ax1 - bx2;
- if (ay2 <= by1) { // Top right
- const double dx = ax1 - bx2;
- const double dy = by1 - ay2;
- vec->y = ay2 - by1;
- return sqrt(dx * dx + dy * dy);
- } else if (ay1 >= by2) { // Bottom right
- const double dx = ax1 - bx2;
- const double dy = ay1 - by2;
- vec->y = ay1 - by2;
- return sqrt(dx * dx + dy * dy);
- } else { // Right
- return ax1 - bx2;
- }
- } else if (ay2 <= by1) { // Top
- vec->y = ay2 - by1;
- return by1 - ay2;
- } else if (ay1 >= by2) { // Bottom
- vec->y = ay1 - by2;
- return ay1 - by2;
- } else { // Overlap
- return 0.0;
- }
-}
-
-/** Repelling charge force, ala Coulomb's law. */
-inline Vector
-repel_force(const Region& a, const Region& b)
-{
- static const double MIN_DIST = 1.0;
-
- Vector vec;
- double dist = rect_distance(
- &vec,
- a.pos.x - (a.area.x / 2.0), a.pos.y - (a.area.y / 2.0),
- a.pos.x + (a.area.x / 2.0), a.pos.y + (a.area.y / 2.0),
- b.pos.x - (b.area.x / 2.0), b.pos.y - (b.area.y / 2.0),
- b.pos.x + (b.area.x / 2.0), b.pos.y + (b.area.y / 2.0));
-
- if (dist <= MIN_DIST) {
- dist = MIN_DIST;
- vec = vec_sub(a.pos, b.pos);
- }
- return vec_mult(vec, (CHARGE_KE * 0.5 / (vec_mag(vec) * dist * dist)));
-}
diff --git a/src/ganv-marshal.list b/src/ganv-marshal.list
deleted file mode 100644
index 64e6c6b..0000000
--- a/src/ganv-marshal.list
+++ /dev/null
@@ -1,4 +0,0 @@
-BOOLEAN:BOXED
-VOID:DOUBLE,DOUBLE
-VOID:OBJECT,INT,INT,INT,INT
-VOID:OBJECT,OBJECT
diff --git a/src/ganv-private.h b/src/ganv-private.h
deleted file mode 100644
index df611a9..0000000
--- a/src/ganv-private.h
+++ /dev/null
@@ -1,403 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2015 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef GANV_PRIVATE_H
-#define GANV_PRIVATE_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <cairo.h>
-
-#include "ganv/canvas.h"
-#include "ganv/text.h"
-#include "ganv/types.h"
-
-#define GANV_CLOSE_ENOUGH 1
-
-extern guint signal_moved;
-
-/* Box */
-
-typedef struct {
- double x1, y1, x2, y2;
- double border_width;
- gboolean stacked;
-} GanvBoxCoords;
-
-struct _GanvBoxPrivate {
- GanvBoxCoords coords;
- GanvBoxCoords old_coords;
- double radius_tl;
- double radius_tr;
- double radius_br;
- double radius_bl;
- gboolean beveled;
-};
-
-/* Circle */
-
-typedef struct {
- double x, y, radius, radius_ems;
- double width;
-} GanvCircleCoords;
-
-struct _GanvCirclePrivate {
- GanvCircleCoords coords;
- GanvCircleCoords old_coords;
- gboolean fit_label;
-};
-
-/* Edge */
-
-typedef struct {
- double x1, y1, x2, y2;
- double cx1, cy1, cx2, cy2;
- double handle_x, handle_y, handle_radius;
- double width;
- gboolean constraining;
- gboolean curved;
- gboolean arrowhead;
-} GanvEdgeCoords;
-
-struct _GanvEdgePrivate
-{
- GanvNode* tail;
- GanvNode* head;
- GanvEdgeCoords coords;
- GanvEdgeCoords old_coords;
- double dash_length;
- double dash_offset;
- guint color;
- gboolean selected;
- gboolean highlighted;
- gboolean ghost;
-};
-
-/* Module */
-
-struct _GanvModulePrivate
-{
- GPtrArray* ports;
- GanvItem* embed_item;
- int embed_width;
- int embed_height;
- double widest_input;
- double widest_output;
- gboolean must_reorder;
-};
-
-/* Node */
-
-#ifdef GANV_FDGL
-typedef struct {
- double x;
- double y;
-} Vector;
-#endif
-
-struct _GanvNodePrivate {
- struct _GanvNode* partner;
- GanvText* label;
- double dash_length;
- double dash_offset;
- double border_width;
- guint fill_color;
- guint border_color;
- gboolean can_tail;
- gboolean can_head;
- gboolean is_source;
- gboolean selected;
- gboolean highlighted;
- gboolean draggable;
- gboolean show_label;
- gboolean grabbed;
- gboolean must_resize;
-#ifdef GANV_FDGL
- Vector force;
- Vector vel;
- gboolean connected;
-#endif
-};
-
-/* Widget */
-
-struct _GanvWidgetPrivate {
- GtkWidget* widget; /* The child widget */
-
- double x, y; /* Position at anchor */
- double width, height; /* Dimensions of widget */
- GtkAnchorType anchor; /* Anchor side for widget */
-
- int cx, cy; /* Top-left canvas coordinates for widget */
- int cwidth, cheight; /* Size of widget in pixels */
-
- guint destroy_id; /* Signal connection id for destruction of child widget */
-
- guint size_pixels : 1; /* Is size specified in (unchanging) pixels or units (get scaled)? */
- guint in_destroy : 1; /* Is child widget being destroyed? */
-};
-
-/* Group */
-struct _GanvGroupPrivate {
- GList* item_list;
- GList* item_list_end;
-};
-
-/* Item */
-struct _GanvItemPrivate {
- /* Parent canvas for this item */
- struct _GanvCanvas* canvas;
-
- /* Parent for this item */
- GanvItem* parent;
-
- /* Wrapper object for this item, if any */
- void* wrapper;
-
- /* Layer (z order), higher values are on top */
- guint layer;
-
- /* Position in parent-relative coordinates. */
- double x, y;
-
- /* Bounding box for this item (in world coordinates) */
- double x1, y1, x2, y2;
-
- /* True if parent manages this item (don't call add/remove) */
- gboolean managed;
-};
-
-void
-ganv_node_tick(GanvNode* self, double seconds);
-
-void
-ganv_node_tail_vector(const GanvNode* self,
- const GanvNode* head,
- double* x1,
- double* y1,
- double* x2,
- double* y2);
-
-void
-ganv_node_head_vector(const GanvNode* self,
- const GanvNode* tail,
- double* x1,
- double* y1,
- double* x2,
- double* y2);
-
-/**
- * ganv_node_get_draw_properties:
- *
- * Get the colours that should currently be used for drawing this node. Note
- * these may not be identical to the property values because of highlighting
- * and selection.
- */
-void
-ganv_node_get_draw_properties(const GanvNode* node,
- double* dash_length,
- double* border_color,
- double* fill_color);
-
-/* Port */
-
-typedef struct {
- GanvBox* rect;
- float value;
- float min;
- float max;
- gboolean is_toggle;
- gboolean is_integer;
-} GanvPortControl;
-
-struct _GanvPortPrivate {
- GanvPortControl* control;
- GanvText* value_label;
- gboolean is_input;
- gboolean is_controllable;
-};
-
-/* Text */
-
-typedef struct
-{
- double x;
- double y;
- double width;
- double height;
-} GanvTextCoords;
-
-struct _GanvTextPrivate
-{
- PangoLayout* layout;
- char* text;
- GanvTextCoords coords;
- GanvTextCoords old_coords;
- double font_size;
- guint color;
- gboolean needs_layout;
-};
-
-/* Canvas */
-
-typedef struct {
- GanvPortOrderFunc port_cmp;
- void* data;
-} PortOrderCtx;
-
-void
-ganv_canvas_move_selected_items(GanvCanvas* canvas,
- double dx,
- double dy);
-
-void
-ganv_canvas_selection_move_finished(GanvCanvas* canvas);
-
-void
-ganv_canvas_add_node(GanvCanvas* canvas,
- GanvNode* node);
-
-void
-ganv_canvas_remove_node(GanvCanvas* canvas,
- GanvNode* node);
-
-void
-ganv_canvas_select_node(GanvCanvas* canvas,
- GanvNode* node);
-
-void
-ganv_canvas_unselect_node(GanvCanvas* canvas,
- GanvNode* node);
-
-void
-ganv_canvas_add_edge(GanvCanvas* canvas,
- GanvEdge* edge);
-
-void
-ganv_canvas_select_edge(GanvCanvas* canvas,
- GanvEdge* edge);
-
-void
-ganv_canvas_unselect_edge(GanvCanvas* canvas,
- GanvEdge* edge);
-
-void
-ganv_canvas_disconnect_edge(GanvCanvas* canvas,
- GanvEdge* edge);
-
-gboolean
-ganv_canvas_port_event(GanvCanvas* canvas,
- GanvPort* port,
- GdkEvent* event);
-
-void
-ganv_canvas_contents_changed(GanvCanvas* canvas);
-
-void
-ganv_item_i2w_offset(GanvItem* item, double* px, double* py);
-
-void
-ganv_item_i2w_pair(GanvItem* item, double* x1, double* y1, double* x2, double* y2);
-
-void
-ganv_item_invoke_update(GanvItem* item, int flags);
-
-void
-ganv_item_emit_event(GanvItem* item, GdkEvent* event, gint* finished);
-
-void
-ganv_canvas_request_update(GanvCanvas* canvas);
-
-int
-ganv_canvas_emit_event(GanvCanvas* canvas, GdkEvent* event);
-
-void
-ganv_canvas_set_need_repick(GanvCanvas* canvas);
-
-void
-ganv_canvas_forget_item(GanvCanvas* canvas, GanvItem* item);
-
-void
-ganv_canvas_grab_focus(GanvCanvas* canvas, GanvItem* item);
-
-void
-ganv_canvas_get_zoom_offsets(GanvCanvas* canvas, int* x, int* y);
-
-int
-ganv_canvas_grab_item(GanvItem* item, guint event_mask, GdkCursor* cursor, guint32 etime);
-
-void
-ganv_canvas_ungrab_item(GanvItem* item, guint32 etime);
-
-/* Request a redraw of the specified rectangle in canvas coordinates */
-void
-ganv_canvas_request_redraw_c(GanvCanvas* canvas,
- int x1, int y1, int x2, int y2);
-
-/* Request a redraw of the specified rectangle in world coordinates */
-void
-ganv_canvas_request_redraw_w(GanvCanvas* canvas,
- double x1, double y1, double x2, double y2);
-
-PortOrderCtx
-ganv_canvas_get_port_order(GanvCanvas* canvas);
-
-gboolean
-ganv_canvas_exporting(GanvCanvas* canvas);
-
-/* Edge */
-
-void
-ganv_edge_update_location(GanvEdge* edge);
-
-void
-ganv_edge_get_coords(const GanvEdge* edge, GanvEdgeCoords* coords);
-
-void
-ganv_edge_request_redraw(GanvItem* item,
- const GanvEdgeCoords* coords);
-
-void
-ganv_edge_tick(GanvEdge* edge, double seconds);
-
-/* Box */
-
-void
-ganv_box_path(GanvBox* box,
- cairo_t* cr, double x1, double y1, double x2, double y2,
- double dr);
-
-void
-ganv_box_request_redraw(GanvItem* item,
- const GanvBoxCoords* coords,
- gboolean world);
-
-/* Port */
-
-void
-ganv_port_set_control_value_internal(GanvPort* port,
- float value);
-
-void
-ganv_port_set_direction(GanvPort* port,
- GanvDirection direction);
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
-#endif /* GANV_PRIVATE_H */
diff --git a/src/ganv_bench.cpp b/src/ganv_bench.cpp
deleted file mode 100644
index b1bdefb..0000000
--- a/src/ganv_bench.cpp
+++ /dev/null
@@ -1,178 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2013 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <glibmm.h>
-#include <gtkmm/main.h>
-#include <gtkmm/scrolledwindow.h>
-#include <gtkmm/window.h>
-
-#include "ganv/ganv.hpp"
-
-using namespace std;
-using namespace Ganv;
-
-static const int MAX_NUM_PORTS = 16;
-
-vector<Node*> ins;
-vector<Node*> outs;
-
-static Module*
-make_module(Canvas* canvas)
-{
- char name[8];
-
- snprintf(name, 8, "mod%d", rand() % 10000);
- Module* m(new Module(*canvas, name,
- rand() % (int)canvas->get_width(),
- rand() % (int)canvas->get_height(),
- true));
-
- int n_ins = rand() % MAX_NUM_PORTS;
- for (int i = 0; i < n_ins; ++i) {
- snprintf(name, 8, "in%d", rand() % 10000);
- Port* p(new Port(*m, name, true,
- ((rand() % 0xFFFFFF) << 8) | 0xFF));
- ins.push_back(p);
- }
-
- int n_outs = rand() % MAX_NUM_PORTS;
- for (int i = 0; i < n_outs; ++i) {
- snprintf(name, 8, "out%d", rand() % 10000);
- Port* p(new Port(*m, name, false,
- ((rand() % 0xFFFFFF) << 8) | 0xFF));
- outs.push_back(p);
- }
-
- m->show();
- return m;
-}
-
-static Circle*
-make_circle(Canvas* canvas)
-{
- char name[8];
-
- snprintf(name, 8, "%d", rand() % 10000);
- Circle* e(new Circle(*canvas, name,
- rand() % (int)canvas->get_width(),
- rand() % (int)canvas->get_height()));
-
- ins.push_back(e);
- outs.push_back(e);
-
- return e;
-}
-
-static bool
-quit()
-{
- Gtk::Main::quit();
- return true;
-}
-
-static int
-print_usage(const char* name)
-{
- fprintf(stderr,
- "USAGE: %s [OPTION]... CANVAS_W CANVAS_H N_MODULES N_CIRCLES N_EDGES\n\n"
- "Options:\n"
- " -o Remain open (do not close immediately)\n"
- " -a Arrange canvas\n"
- " -s Straight edges\n",
- name);
- return 1;
-}
-
-int
-main(int argc, char** argv)
-{
- if (argc < 5) {
- return print_usage(argv[0]);
- }
-
- int arg = 1;
-
- bool remain_open = false;
- bool arrange = false;
- bool straight = false;
- for (; arg < argc && argv[arg][0] == '-'; ++arg) {
- if (argv[arg][1] == 'o') {
- remain_open = true;
- } else if (argv[arg][1] == 'a') {
- arrange = true;
- } else if (argv[arg][1] == 's') {
- straight = true;
- } else {
- return print_usage(argv[0]);
- }
- }
-
- const int canvas_w = atoi(argv[arg++]);
- const int canvas_h = atoi(argv[arg++]);
-
- if (argc - arg < 3) {
- return print_usage(argv[0]);
- }
-
- const int n_modules = atoi(argv[arg++]);
- const int n_circles = atoi(argv[arg++]);
- const int n_edges = atoi(argv[arg++]);
-
- srand(time(NULL));
-
- Gtk::Main kit(argc, argv);
-
- Gtk::Window window;
- Gtk::ScrolledWindow* scroller = Gtk::manage(new Gtk::ScrolledWindow());
-
- Canvas* canvas = new Canvas(canvas_w, canvas_h);
- scroller->add(canvas->widget());
- window.add(*scroller);
-
- window.show_all();
-
- for (int i = 0; i < n_modules; ++i) {
- make_module(canvas);
- }
-
- for (int i = 0; i < n_circles; ++i) {
- make_circle(canvas);
- }
-
- for (int i = 0; i < n_edges; ++i) {
- Node* src = outs[rand() % outs.size()];
- Node* dst = ins[rand() % ins.size()];
- Edge* c = new Edge(*canvas, src, dst, 0x808080FF);
- if (straight) {
- c->set_curved(false);
- }
- }
-
- if (arrange) {
- canvas->arrange();
- }
-
- if (!remain_open) {
- Glib::signal_idle().connect(sigc::ptr_fun(quit));
- }
-
- Gtk::Main::run(window);
-
- return 0;
-}
diff --git a/src/ganv_test.c b/src/ganv_test.c
deleted file mode 100644
index ec1b0a8..0000000
--- a/src/ganv_test.c
+++ /dev/null
@@ -1,119 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2013 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <gtk/gtk.h>
-
-#include "ganv/ganv.h"
-
-static void
-on_window_destroy(GtkWidget* widget, void* data)
-{
- gtk_main_quit();
-}
-
-static void
-on_connect(GanvCanvas* canvas, GanvNode* tail, GanvNode* head, void* data)
-{
- ganv_edge_new(canvas, tail, head, "color", 0xFFFFFFFF, NULL);
-}
-
-static void
-on_disconnect(GanvCanvas* canvas, GanvNode* tail, GanvNode* head, void* data)
-{
- ganv_canvas_remove_edge_between(canvas, tail, head);
-}
-
-static void
-on_value_changed(GanvPort* port, double value, void* data)
-{
- fprintf(stderr, "Value changed: port %p = %lf\n", (void*)port, value);
-}
-
-int
-main(int argc, char** argv)
-{
- gtk_init(&argc, &argv);
-
- GtkWindow* win = GTK_WINDOW(gtk_window_new(GTK_WINDOW_TOPLEVEL));
- gtk_window_set_title(win, "Ganv Test");
- g_signal_connect(win, "destroy",
- G_CALLBACK(on_window_destroy), NULL);
-
- GanvCanvas* canvas = ganv_canvas_new(1024, 768);
- gtk_container_add(GTK_CONTAINER(win), GTK_WIDGET(canvas));
-
- GanvCircle* circle = ganv_circle_new(canvas,
- "x", 400.0,
- "y", 400.0,
- "draggable", TRUE,
- "label", "state",
- "radius", 32.0,
- NULL);
- ganv_item_show(GANV_ITEM(circle));
-
- GanvModule* module = ganv_module_new(canvas,
- "x", 10.0,
- "y", 10.0,
- "draggable", TRUE,
- "label", "test",
- NULL);
-
- ganv_port_new(module, FALSE,
- "label", "Signal",
- NULL);
-
- GanvPort* cport = ganv_port_new(module, TRUE,
- "label", "Control",
- NULL);
- ganv_port_show_control(cport);
- g_signal_connect(cport, "value-changed",
- G_CALLBACK(on_value_changed), NULL);
-
- //GtkWidget* entry = gtk_entry_new();
- //ganv_module_embed(module, entry);
-
- GanvPort* tport = ganv_port_new(module, TRUE,
- "label", "Toggle",
- NULL);
- ganv_port_show_control(tport);
- ganv_port_set_control_is_toggle(tport, TRUE);
-
- ganv_item_show(GANV_ITEM(module));
-
- GanvModule* module2 = ganv_module_new(canvas,
- "x", 200.0,
- "y", 10.0,
- "draggable", TRUE,
- "label", "test2",
- NULL);
-
- ganv_port_new(module2, TRUE,
- "label", "Signal",
- NULL);
-
- g_signal_connect(canvas, "connect",
- G_CALLBACK(on_connect), canvas);
-
- g_signal_connect(canvas, "disconnect",
- G_CALLBACK(on_disconnect), canvas);
-
- ganv_item_show(GANV_ITEM(module2));
-
- gtk_widget_show_all(GTK_WIDGET(win));
- gtk_window_present(win);
- gtk_main();
-
- return 0;
-}
diff --git a/src/ganv_test.py b/src/ganv_test.py
deleted file mode 100755
index 1ea53c2..0000000
--- a/src/ganv_test.py
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/usr/bin/env python
-
-from gi.repository import Ganv, Gtk
-
-win = Gtk.Window()
-win.set_title("Ganv Python Test")
-win.connect("destroy", lambda obj: Gtk.main_quit())
-
-canvas = Ganv.Canvas.new(1024, 768)
-module = Ganv.Module(canvas=canvas,
- label="Test")
-# iport = Ganv.Port(module=module,
-# is_input=True,
-# label="In")
-# oport = Ganv.Port(module=module,
-# is_input=False,
-# label="In")
-
-win.add(canvas)
-win.show_all()
-win.present()
-Gtk.main()
diff --git a/src/gettext.h b/src/gettext.h
deleted file mode 100644
index d32bb70..0000000
--- a/src/gettext.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2013 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef GANV_GETTEXT_H
-#define GANV_GETTEXT_H
-
-#ifdef ENABLE_NLS
-# include <libintl.h>
-# define _(str) dgettext("ganv", str)
-#else
-# define _(str) str
-#endif
-
-#endif /* GANV_GETTEXT_H */
diff --git a/src/group.c b/src/group.c
deleted file mode 100644
index 503e57b..0000000
--- a/src/group.c
+++ /dev/null
@@ -1,446 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2015 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* Based on GnomeCanvasGroup, by Federico Mena <federico@nuclecu.unam.mx>
- * and Raph Levien <raph@gimp.org>
- * Copyright 1997-2000 Free Software Foundation
- */
-
-#include <math.h>
-
-#include "ganv/canvas.h"
-#include "ganv/group.h"
-
-#include "./gettext.h"
-#include "./ganv-private.h"
-
-enum {
- GROUP_PROP_0
-};
-
-G_DEFINE_TYPE_WITH_CODE(GanvGroup, ganv_group, GANV_TYPE_ITEM,
- G_ADD_PRIVATE(GanvGroup))
-
-static GanvItemClass* group_parent_class;
-
-static void
-ganv_group_init(GanvGroup* group)
-{
- GanvGroupPrivate* impl = ganv_group_get_instance_private(group);
-
- group->impl = impl;
- group->impl->item_list = NULL;
- group->impl->item_list_end = NULL;
-}
-
-static void
-ganv_group_set_property(GObject* gobject, guint param_id,
- const GValue* value, GParamSpec* pspec)
-{
- g_return_if_fail(GANV_IS_GROUP(gobject));
-
- switch (param_id) {
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(gobject, param_id, pspec);
- break;
- }
-}
-
-static void
-ganv_group_get_property(GObject* gobject, guint param_id,
- GValue* value, GParamSpec* pspec)
-{
- g_return_if_fail(GANV_IS_GROUP(gobject));
-
- switch (param_id) {
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(gobject, param_id, pspec);
- break;
- }
-}
-
-static void
-ganv_group_destroy(GtkObject* object)
-{
- GanvGroup* group;
-
- g_return_if_fail(GANV_IS_GROUP(object));
-
- group = GANV_GROUP(object);
-
- while (group->impl->item_list) {
- // child is unref'ed by the child's group_remove().
- gtk_object_destroy(GTK_OBJECT(group->impl->item_list->data));
- }
- if (GTK_OBJECT_CLASS(group_parent_class)->destroy) {
- (*GTK_OBJECT_CLASS(group_parent_class)->destroy)(object);
- }
-}
-
-static void
-ganv_group_update(GanvItem* item, int flags)
-{
- GanvGroup* group = GANV_GROUP(item);
-
- double min_x = 0.0;
- double min_y = 0.0;
- double max_x = 0.0;
- double max_y = 0.0;
-
- for (GList* list = group->impl->item_list; list; list = list->next) {
- GanvItem* i = (GanvItem*)list->data;
-
- ganv_item_invoke_update(i, flags);
-
- min_x = fmin(min_x, fmin(i->impl->x1, i->impl->x2));
- min_y = fmin(min_y, fmin(i->impl->y1, i->impl->y2));
- max_x = fmax(max_x, fmax(i->impl->x1, i->impl->x2));
- max_y = fmax(max_y, fmax(i->impl->y2, i->impl->y2));
- }
- item->impl->x1 = min_x;
- item->impl->y1 = min_y;
- item->impl->x2 = max_x;
- item->impl->y2 = max_y;
-
- (*group_parent_class->update)(item, flags);
-}
-
-static void
-ganv_group_realize(GanvItem* item)
-{
- GanvGroup* group;
- GList* list;
- GanvItem* i;
-
- group = GANV_GROUP(item);
-
- for (list = group->impl->item_list; list; list = list->next) {
- i = (GanvItem*)list->data;
-
- if (!(i->object.flags & GANV_ITEM_REALIZED)) {
- (*GANV_ITEM_GET_CLASS(i)->realize)(i);
- }
- }
-
- (*group_parent_class->realize)(item);
-}
-
-static void
-ganv_group_unrealize(GanvItem* item)
-{
- GanvGroup* group;
- GList* list;
- GanvItem* i;
-
- group = GANV_GROUP(item);
-
- for (list = group->impl->item_list; list; list = list->next) {
- i = (GanvItem*)list->data;
-
- if (i->object.flags & GANV_ITEM_REALIZED) {
- (*GANV_ITEM_GET_CLASS(i)->unrealize)(i);
- }
- }
-
- (*group_parent_class->unrealize)(item);
-}
-
-static void
-ganv_group_map(GanvItem* item)
-{
- GanvGroup* group;
- GList* list;
- GanvItem* i;
-
- group = GANV_GROUP(item);
-
- for (list = group->impl->item_list; list; list = list->next) {
- i = (GanvItem*)list->data;
-
- if (!(i->object.flags & GANV_ITEM_MAPPED)) {
- (*GANV_ITEM_GET_CLASS(i)->map)(i);
- }
- }
-
- (*group_parent_class->map)(item);
-}
-
-static void
-ganv_group_unmap(GanvItem* item)
-{
- GanvGroup* group;
- GList* list;
- GanvItem* i;
-
- group = GANV_GROUP(item);
-
- for (list = group->impl->item_list; list; list = list->next) {
- i = (GanvItem*)list->data;
-
- if (i->object.flags & GANV_ITEM_MAPPED) {
- (*GANV_ITEM_GET_CLASS(i)->unmap)(i);
- }
- }
-
- (*group_parent_class->unmap)(item);
-}
-
-static void
-ganv_group_draw(GanvItem* item,
- cairo_t* cr, double cx, double cy, double cw, double ch)
-{
- GanvGroup* group = GANV_GROUP(item);
-
- // TODO: Layered drawing
-
- for (GList* list = group->impl->item_list; list; list = list->next) {
- GanvItem* child = (GanvItem*)list->data;
-
- if (((child->object.flags & GANV_ITEM_VISIBLE)
- && ((child->impl->x1 < (cx + cw))
- && (child->impl->y1 < (cy + ch))
- && (child->impl->x2 > cx)
- && (child->impl->y2 > cy)))) {
- if (GANV_ITEM_GET_CLASS(child)->draw) {
- (*GANV_ITEM_GET_CLASS(child)->draw)(
- child, cr, cx, cy, cw, ch);
- }
- }
- }
-}
-
-static double
-ganv_group_point(GanvItem* item, double x, double y, GanvItem** actual_item)
-{
- GanvGroup* group = GANV_GROUP(item);
-
- const double x1 = x - GANV_CLOSE_ENOUGH;
- const double y1 = y - GANV_CLOSE_ENOUGH;
- const double x2 = x + GANV_CLOSE_ENOUGH;
- const double y2 = y + GANV_CLOSE_ENOUGH;
-
- double dist = 0.0;
- double best = 0.0;
-
- *actual_item = NULL;
-
- for (GList* list = group->impl->item_list; list; list = list->next) {
- GanvItem* child = (GanvItem*)list->data;
- if ((child->impl->x1 > x2) || (child->impl->y1 > y2) || (child->impl->x2 < x1) || (child->impl->y2 < y1)) {
- continue;
- }
-
- GanvItem* point_item = NULL;
-
- int has_point = FALSE;
- if ((child->object.flags & GANV_ITEM_VISIBLE)
- && GANV_ITEM_GET_CLASS(child)->point) {
- dist = GANV_ITEM_GET_CLASS(child)->point(
- child,
- x - child->impl->x, y - child->impl->y,
- &point_item);
- has_point = TRUE;
- }
-
- if (has_point
- && point_item
- && ((int)(dist + 0.5) <= GANV_CLOSE_ENOUGH)) {
- best = dist;
- *actual_item = point_item;
- }
- }
-
- if (*actual_item) {
- return best;
- } else {
- *actual_item = item;
- return 0.0;
- }
-}
-
-/* Get bounds of child item in group-relative coordinates. */
-static void
-get_child_bounds(GanvItem* child, double* x1, double* y1, double* x2, double* y2)
-{
- ganv_item_get_bounds(child, x1, y1, x2, y2);
-
- // Make bounds relative to the item's parent coordinate system
- *x1 -= child->impl->x;
- *y1 -= child->impl->y;
- *x2 -= child->impl->x;
- *y2 -= child->impl->y;
-}
-
-static void
-ganv_group_bounds(GanvItem* item, double* x1, double* y1, double* x2, double* y2)
-{
- GanvGroup* group;
- GanvItem* child;
- GList* list;
- double tx1, ty1, tx2, ty2;
- double minx, miny, maxx, maxy;
- int set;
-
- group = GANV_GROUP(item);
-
- /* Get the bounds of the first visible item */
-
- child = NULL; /* Unnecessary but eliminates a warning. */
-
- set = FALSE;
-
- for (list = group->impl->item_list; list; list = list->next) {
- child = (GanvItem*)list->data;
-
- if (child->object.flags & GANV_ITEM_VISIBLE) {
- set = TRUE;
- get_child_bounds(child, &minx, &miny, &maxx, &maxy);
- break;
- }
- }
-
- /* If there were no visible items, return an empty bounding box */
-
- if (!set) {
- *x1 = *y1 = *x2 = *y2 = 0.0;
- return;
- }
-
- /* Now we can grow the bounds using the rest of the items */
-
- list = list->next;
-
- for (; list; list = list->next) {
- child = (GanvItem*)list->data;
-
- if (!(child->object.flags & GANV_ITEM_VISIBLE)) {
- continue;
- }
-
- get_child_bounds(child, &tx1, &ty1, &tx2, &ty2);
-
- if (tx1 < minx) {
- minx = tx1;
- }
-
- if (ty1 < miny) {
- miny = ty1;
- }
-
- if (tx2 > maxx) {
- maxx = tx2;
- }
-
- if (ty2 > maxy) {
- maxy = ty2;
- }
- }
-
- *x1 = minx;
- *y1 = miny;
- *x2 = maxx;
- *y2 = maxy;
-}
-
-static void
-ganv_group_add(GanvItem* parent, GanvItem* item)
-{
- GanvGroup* group = GANV_GROUP(parent);
- g_object_ref_sink(G_OBJECT(item));
-
- if (!group->impl->item_list) {
- group->impl->item_list = g_list_append(group->impl->item_list, item);
- group->impl->item_list_end = group->impl->item_list;
- } else {
- group->impl->item_list_end = g_list_append(group->impl->item_list_end, item)->next;
- }
-
- if (group->item.object.flags & GANV_ITEM_REALIZED) {
- (*GANV_ITEM_GET_CLASS(item)->realize)(item);
- }
-
- if (group->item.object.flags & GANV_ITEM_MAPPED) {
- (*GANV_ITEM_GET_CLASS(item)->map)(item);
- }
-
- g_object_notify(G_OBJECT(item), "parent");
-}
-
-static void
-ganv_group_remove(GanvItem* parent, GanvItem* item)
-{
- GanvGroup* group = GANV_GROUP(parent);
- GList* children;
-
- g_return_if_fail(GANV_IS_GROUP(group));
- g_return_if_fail(GANV_IS_ITEM(item));
-
- for (children = group->impl->item_list; children; children = children->next) {
- if (children->data == item) {
- if (item->object.flags & GANV_ITEM_MAPPED) {
- (*GANV_ITEM_GET_CLASS(item)->unmap)(item);
- }
-
- if (item->object.flags & GANV_ITEM_REALIZED) {
- (*GANV_ITEM_GET_CLASS(item)->unrealize)(item);
- }
-
- /* Unparent the child */
-
- item->impl->parent = NULL;
- g_object_unref(G_OBJECT(item));
-
- /* Remove it from the list */
-
- if (children == group->impl->item_list_end) {
- group->impl->item_list_end = children->prev;
- }
-
- group->impl->item_list = g_list_remove_link(group->impl->item_list, children);
- g_list_free(children);
- break;
- }
- }
-}
-
-static void
-ganv_group_class_init(GanvGroupClass* klass)
-{
- GObjectClass* gobject_class;
- GtkObjectClass* object_class;
- GanvItemClass* item_class;
-
- gobject_class = (GObjectClass*)klass;
- object_class = (GtkObjectClass*)klass;
- item_class = (GanvItemClass*)klass;
-
- group_parent_class = (GanvItemClass*)g_type_class_peek_parent(klass);
-
- gobject_class->set_property = ganv_group_set_property;
- gobject_class->get_property = ganv_group_get_property;
-
- object_class->destroy = ganv_group_destroy;
-
- item_class->add = ganv_group_add;
- item_class->remove = ganv_group_remove;
- item_class->update = ganv_group_update;
- item_class->realize = ganv_group_realize;
- item_class->unrealize = ganv_group_unrealize;
- item_class->map = ganv_group_map;
- item_class->unmap = ganv_group_unmap;
- item_class->draw = ganv_group_draw;
- item_class->point = ganv_group_point;
- item_class->bounds = ganv_group_bounds;
-}
diff --git a/src/item.c b/src/item.c
deleted file mode 100644
index a458acd..0000000
--- a/src/item.c
+++ /dev/null
@@ -1,707 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2016 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* Based on GnomeCanvas, by Federico Mena <federico@nuclecu.unam.mx>
- * and Raph Levien <raph@gimp.org>
- * Copyright 1997-2000 Free Software Foundation
- */
-
-#include "ganv/canvas.h"
-#include "ganv/node.h"
-
-#include "./boilerplate.h"
-#include "./ganv-marshal.h"
-#include "./ganv-private.h"
-#include "./gettext.h"
-
-/* All canvas items are derived from GanvItem. The only information a GanvItem
- * contains is its parent canvas, its parent canvas item, its bounding box in
- * world coordinates, and its current affine transformation.
- *
- * Items inside a canvas are organized in a tree, where leaves are items
- * without any children. Each canvas has a single root item, which can be
- * obtained with the ganv_canvas_base_get_root() function.
- *
- * The abstract GanvItem class does not have any configurable or queryable
- * attributes.
- */
-
-/* Update flags for items */
-enum {
- GANV_CANVAS_UPDATE_REQUESTED = 1 << 0,
- GANV_CANVAS_UPDATE_AFFINE = 1 << 1,
- GANV_CANVAS_UPDATE_VISIBILITY = 1 << 2
-};
-
-#define GCI_UPDATE_MASK (GANV_CANVAS_UPDATE_REQUESTED \
- | GANV_CANVAS_UPDATE_AFFINE \
- | GANV_CANVAS_UPDATE_VISIBILITY)
-
-enum {
- ITEM_PROP_0,
- ITEM_PROP_PARENT,
- ITEM_PROP_X,
- ITEM_PROP_Y,
- ITEM_PROP_MANAGED
-};
-
-enum {
- ITEM_EVENT,
- ITEM_LAST_SIGNAL
-};
-
-static guint item_signals[ITEM_LAST_SIGNAL];
-
-G_DEFINE_TYPE_WITH_CODE(GanvItem, ganv_item, GTK_TYPE_OBJECT,
- G_ADD_PRIVATE(GanvItem))
-
-static GtkObjectClass* item_parent_class;
-
-/* Object initialization function for GanvItem */
-static void
-ganv_item_init(GanvItem* item)
-{
- GanvItemPrivate* impl = ganv_item_get_instance_private(item);
-
- item->object.flags |= GANV_ITEM_VISIBLE;
- item->impl = impl;
- item->impl->managed = FALSE;
- item->impl->wrapper = NULL;
-}
-
-/**
- * ganv_item_new:
- * @parent: The parent group for the new item.
- * @type: The object type of the item.
- * @first_arg_name: A list of object argument name/value pairs, NULL-terminated,
- * used to configure the item. For example, "fill_color", "black",
- * "width_units", 5.0, NULL.
- * @...: first argument value, second argument name, second argument value, ...
- *
- * Creates a new canvas item with @parent as its parent group. The item is
- * created at the top of its parent's stack, and starts up as visible. The item
- * is of the specified @type, for example, it can be
- * ganv_canvas_rect_get_type(). The list of object arguments/value pairs is
- * used to configure the item. If you need to pass construct time parameters, you
- * should use g_object_new() to pass the parameters and
- * ganv_item_construct() to set up the canvas item.
- *
- * Return value: (transfer full): The newly-created item.
- **/
-GanvItem*
-ganv_item_new(GanvItem* parent, GType type, const gchar* first_arg_name, ...)
-{
- g_return_val_if_fail(g_type_is_a(type, ganv_item_get_type()), NULL);
-
- GanvItem* item = GANV_ITEM(g_object_new(type, NULL));
-
- va_list args;
- va_start(args, first_arg_name);
- ganv_item_construct(item, parent, first_arg_name, args);
- va_end(args);
-
- return item;
-}
-
-/* Performs post-creation operations on a canvas item (adding it to its parent
- * group, etc.)
- */
-static void
-item_post_create_setup(GanvItem* item)
-{
- GanvItemClass* parent_class = GANV_ITEM_GET_CLASS(item->impl->parent);
- if (!item->impl->managed) {
- if (parent_class->add) {
- parent_class->add(item->impl->parent, item);
- } else {
- g_warning("item added to non-parent item\n");
- }
- }
- ganv_canvas_request_redraw_w(item->impl->canvas,
- item->impl->x1, item->impl->y1,
- item->impl->x2 + 1, item->impl->y2 + 1);
- ganv_canvas_set_need_repick(item->impl->canvas);
-}
-
-static void
-ganv_item_set_property(GObject* object,
- guint prop_id,
- const GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_ITEM(object));
-
- GanvItem* item = GANV_ITEM(object);
-
- switch (prop_id) {
- case ITEM_PROP_PARENT:
- if (item->impl->parent != NULL) {
- g_warning("Cannot set `parent' argument after item has "
- "already been constructed.");
- } else if (g_value_get_object(value)) {
- item->impl->parent = GANV_ITEM(g_value_get_object(value));
- item->impl->canvas = item->impl->parent->impl->canvas;
- item_post_create_setup(item);
- }
- break;
- case ITEM_PROP_X:
- item->impl->x = g_value_get_double(value);
- ganv_item_request_update(item);
- break;
- case ITEM_PROP_Y:
- item->impl->y = g_value_get_double(value);
- ganv_item_request_update(item);
- break;
- case ITEM_PROP_MANAGED:
- item->impl->managed = g_value_get_boolean(value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_item_get_property(GObject* object,
- guint prop_id,
- GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_ITEM(object));
-
- GanvItem* item = GANV_ITEM(object);
-
- switch (prop_id) {
- case ITEM_PROP_PARENT:
- g_value_set_object(value, item->impl->parent);
- break;
- case ITEM_PROP_X:
- g_value_set_double(value, item->impl->x);
- break;
- case ITEM_PROP_Y:
- g_value_set_double(value, item->impl->y);
- break;
- case ITEM_PROP_MANAGED:
- g_value_set_boolean(value, item->impl->managed);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-/**
- * ganv_item_construct:
- * @item: An unconstructed canvas item.
- * @parent: The parent group for the item.
- * @first_arg_name: The name of the first argument for configuring the item.
- * @args: The list of arguments used to configure the item.
- *
- * Constructs a canvas item; meant for use only by item implementations.
- **/
-void
-ganv_item_construct(GanvItem* item, GanvItem* parent,
- const gchar* first_arg_name, va_list args)
-{
- g_return_if_fail(GANV_IS_ITEM(item));
-
- item->impl->parent = parent;
- item->impl->wrapper = NULL;
- item->impl->canvas = item->impl->parent->impl->canvas;
- item->impl->layer = 0;
-
- g_object_set_valist(G_OBJECT(item), first_arg_name, args);
-
- item_post_create_setup(item);
-}
-
-/* If the item is visible, requests a redraw of it. */
-static void
-redraw_if_visible(GanvItem* item)
-{
- if (item->object.flags & GANV_ITEM_VISIBLE) {
- ganv_canvas_request_redraw_w(item->impl->canvas,
- item->impl->x1, item->impl->y1,
- item->impl->x2 + 1, item->impl->y2 + 1);
- }
-}
-
-/* Standard object dispose function for canvas items */
-static void
-ganv_item_dispose(GObject* object)
-{
- GanvItem* item;
-
- g_return_if_fail(GANV_IS_ITEM(object));
-
- item = GANV_ITEM(object);
-
- if (item->impl->canvas) {
- redraw_if_visible(item);
- ganv_canvas_forget_item(item->impl->canvas, item);
- }
-
- /* Normal destroy stuff */
-
- if (item->object.flags & GANV_ITEM_MAPPED) {
- (*GANV_ITEM_GET_CLASS(item)->unmap)(item);
- }
-
- if (item->object.flags & GANV_ITEM_REALIZED) {
- (*GANV_ITEM_GET_CLASS(item)->unrealize)(item);
- }
-
- if (!item->impl->managed && item->impl->parent) {
- if (GANV_ITEM_GET_CLASS(item->impl->parent)->remove) {
- GANV_ITEM_GET_CLASS(item->impl->parent)->remove(item->impl->parent, item);
- } else {
- fprintf(stderr, "warning: Item parent has no remove method\n");
- }
- }
-
- G_OBJECT_CLASS(item_parent_class)->dispose(object);
- /* items should remove any reference to item->impl->canvas after the
- first ::destroy */
- item->impl->canvas = NULL;
-}
-
-/* Realize handler for canvas items */
-static void
-ganv_item_realize(GanvItem* item)
-{
- GTK_OBJECT_SET_FLAGS(item, GANV_ITEM_REALIZED);
-
- ganv_item_request_update(item);
-}
-
-/* Unrealize handler for canvas items */
-static void
-ganv_item_unrealize(GanvItem* item)
-{
- GTK_OBJECT_UNSET_FLAGS(item, GANV_ITEM_REALIZED);
-}
-
-/* Map handler for canvas items */
-static void
-ganv_item_map(GanvItem* item)
-{
- GTK_OBJECT_SET_FLAGS(item, GANV_ITEM_MAPPED);
-}
-
-/* Unmap handler for canvas items */
-static void
-ganv_item_unmap(GanvItem* item)
-{
- GTK_OBJECT_UNSET_FLAGS(item, GANV_ITEM_MAPPED);
-}
-
-/* Update handler for canvas items */
-static void
-ganv_item_update(GanvItem* item, int flags)
-{
- GTK_OBJECT_UNSET_FLAGS(item, GANV_ITEM_NEED_UPDATE);
- GTK_OBJECT_UNSET_FLAGS(item, GANV_ITEM_NEED_VIS);
-}
-
-/* Point handler for canvas items */
-static double
-ganv_item_point(GanvItem* item, double x, double y, GanvItem** actual_item)
-{
- *actual_item = NULL;
- return G_MAXDOUBLE;
-}
-
-void
-ganv_item_invoke_update(GanvItem* item, int flags)
-{
- int child_flags = flags;
-
- /* apply object flags to child flags */
-
- child_flags &= ~GANV_CANVAS_UPDATE_REQUESTED;
-
- if (item->object.flags & GANV_ITEM_NEED_UPDATE) {
- child_flags |= GANV_CANVAS_UPDATE_REQUESTED;
- }
-
- if (item->object.flags & GANV_ITEM_NEED_VIS) {
- child_flags |= GANV_CANVAS_UPDATE_VISIBILITY;
- }
-
- if (child_flags & GCI_UPDATE_MASK) {
- if (GANV_ITEM_GET_CLASS(item)->update) {
- GANV_ITEM_GET_CLASS(item)->update(item, child_flags);
- g_assert(!(GTK_OBJECT_FLAGS(item) & GANV_ITEM_NEED_UPDATE));
- }
- }
-}
-
-/**
- * ganv_item_set:
- * @item: A canvas item.
- * @first_arg_name: The list of object argument name/value pairs used to configure the item.
- * @...: first argument value, second argument name, second argument value, ...
- *
- * Configures a canvas item. The arguments in the item are set to the specified
- * values, and the item is repainted as appropriate.
- **/
-void
-ganv_item_set(GanvItem* item, const gchar* first_arg_name, ...)
-{
- va_list args;
-
- va_start(args, first_arg_name);
- ganv_item_set_valist(item, first_arg_name, args);
- va_end(args);
-}
-
-/**
- * ganv_item_set_valist:
- * @item: A canvas item.
- * @first_arg_name: The name of the first argument used to configure the item.
- * @args: The list of object argument name/value pairs used to configure the item.
- *
- * Configures a canvas item. The arguments in the item are set to the specified
- * values, and the item is repainted as appropriate.
- **/
-void
-ganv_item_set_valist(GanvItem* item, const gchar* first_arg_name, va_list args)
-{
- g_return_if_fail(GANV_IS_ITEM(item));
-
- g_object_set_valist(G_OBJECT(item), first_arg_name, args);
-
- ganv_canvas_set_need_repick(item->impl->canvas);
-}
-
-GanvCanvas*
-ganv_item_get_canvas(GanvItem* item)
-{
- return item->impl->canvas;
-}
-
-GanvItem*
-ganv_item_get_parent(GanvItem* item)
-{
- return item->impl->parent;
-}
-
-void
-ganv_item_raise(GanvItem* item)
-{
- ++item->impl->layer;
-}
-
-void
-ganv_item_lower(GanvItem* item)
-{
- --item->impl->layer;
-}
-
-/**
- * ganv_item_move:
- * @item: A canvas item.
- * @dx: Horizontal offset.
- * @dy: Vertical offset.
- **/
-void
-ganv_item_move(GanvItem* item, double dx, double dy)
-{
- if (!item || !GANV_IS_ITEM(item)) {
- return;
- }
-
- item->impl->x += dx;
- item->impl->y += dy;
-
- ganv_item_request_update(item);
- ganv_canvas_set_need_repick(item->impl->canvas);
-}
-
-/**
- * ganv_item_show:
- * @item: A canvas item.
- *
- * Shows a canvas item. If the item was already shown, then no action is taken.
- **/
-void
-ganv_item_show(GanvItem* item)
-{
- g_return_if_fail(GANV_IS_ITEM(item));
-
- if (!(item->object.flags & GANV_ITEM_VISIBLE)) {
- item->object.flags |= GANV_ITEM_VISIBLE;
- ganv_canvas_request_redraw_w(item->impl->canvas,
- item->impl->x1, item->impl->y1,
- item->impl->x2 + 1, item->impl->y2 + 1);
- ganv_canvas_set_need_repick(item->impl->canvas);
- }
-}
-
-/**
- * ganv_item_hide:
- * @item: A canvas item.
- *
- * Hides a canvas item. If the item was already hidden, then no action is
- * taken.
- **/
-void
-ganv_item_hide(GanvItem* item)
-{
- g_return_if_fail(GANV_IS_ITEM(item));
-
- if (item->object.flags & GANV_ITEM_VISIBLE) {
- item->object.flags &= ~GANV_ITEM_VISIBLE;
- ganv_canvas_request_redraw_w(item->impl->canvas,
- item->impl->x1, item->impl->y1,
- item->impl->x2 + 1, item->impl->y2 + 1);
- ganv_canvas_set_need_repick(item->impl->canvas);
- }
-}
-
-void
-ganv_item_i2w_offset(GanvItem* item, double* px, double* py)
-{
- double x = 0.0;
- double y = 0.0;
- while (item) {
- x += item->impl->x;
- y += item->impl->y;
- item = item->impl->parent;
- }
- *px = x;
- *py = y;
-}
-
-/**
- * ganv_item_i2w:
- * @item: A canvas item.
- * @x: X coordinate to convert (input/output value).
- * @y: Y coordinate to convert (input/output value).
- *
- * Converts a coordinate pair from item-relative coordinates to world
- * coordinates.
- **/
-void
-ganv_item_i2w(GanvItem* item, double* x, double* y)
-{
- /*g_return_if_fail(GANV_IS_ITEM(item));
- g_return_if_fail(x != NULL);
- g_return_if_fail(y != NULL);*/
-
- double off_x;
- double off_y;
- ganv_item_i2w_offset(item, &off_x, &off_y);
-
- *x += off_x;
- *y += off_y;
-}
-
-void
-ganv_item_i2w_pair(GanvItem* item, double* x1, double* y1, double* x2, double* y2)
-{
- double off_x;
- double off_y;
- ganv_item_i2w_offset(item, &off_x, &off_y);
-
- *x1 += off_x;
- *y1 += off_y;
- *x2 += off_x;
- *y2 += off_y;
-}
-
-/**
- * ganv_item_w2i:
- * @item: A canvas item.
- * @x: X coordinate to convert (input/output value).
- * @y: Y coordinate to convert (input/output value).
- *
- * Converts a coordinate pair from world coordinates to item-relative
- * coordinates.
- **/
-void
-ganv_item_w2i(GanvItem* item, double* x, double* y)
-{
- double off_x;
- double off_y;
- ganv_item_i2w_offset(item, &off_x, &off_y);
-
- *x -= off_x;
- *y -= off_y;
-}
-
-/**
- * ganv_item_grab_focus:
- * @item: A canvas item.
- *
- * Makes the specified item take the keyboard focus, so all keyboard events will
- * be sent to it. If the canvas widget itself did not have the focus, it grabs
- * it as well.
- **/
-void
-ganv_item_grab_focus(GanvItem* item)
-{
- ganv_canvas_grab_focus(item->impl->canvas, item);
-}
-
-void
-ganv_item_emit_event(GanvItem* item, GdkEvent* event, gint* finished)
-{
- g_signal_emit(item, item_signals[ITEM_EVENT], 0, event, finished);
-}
-
-static void
-ganv_item_default_bounds(GanvItem* item, double* x1, double* y1, double* x2, double* y2)
-{
- *x1 = *y1 = *x2 = *y2 = 0.0;
-}
-
-/**
- * ganv_item_get_bounds:
- * @item: A canvas item.
- * @x1: Leftmost edge of the bounding box (return value).
- * @y1: Upper edge of the bounding box (return value).
- * @x2: Rightmost edge of the bounding box (return value).
- * @y2: Lower edge of the bounding box (return value).
- *
- * Queries the bounding box of a canvas item. The bounding box may not be
- * exactly tight, but the canvas items will do the best they can. The bounds
- * are returned in the coordinate system of the item's parent.
- **/
-void
-ganv_item_get_bounds(GanvItem* item, double* x1, double* y1, double* x2, double* y2)
-{
- GANV_ITEM_GET_CLASS(item)->bounds(item, x1, y1, x2, y2);
-}
-
-/**
- * ganv_item_request_update:
- * @item: A canvas item.
- *
- * To be used only by item implementations. Requests that the canvas queue an
- * update for the specified item.
- **/
-void
-ganv_item_request_update(GanvItem* item)
-{
- if (!item->impl->canvas) {
- /* Item is being / has been destroyed, ignore */
- return;
- }
-
- item->object.flags |= GANV_ITEM_NEED_UPDATE;
-
- if (item->impl->parent != NULL &&
- !(item->impl->parent->object.flags & GANV_ITEM_NEED_UPDATE)) {
- /* Recurse up the tree */
- ganv_item_request_update(item->impl->parent);
- } else {
- /* Have reached the top of the tree, make sure the update call gets scheduled. */
- ganv_canvas_request_update(item->impl->canvas);
- }
-}
-
-void
-ganv_item_set_wrapper(GanvItem* item, void* wrapper)
-{
- item->impl->wrapper = wrapper;
-}
-
-void*
-ganv_item_get_wrapper(GanvItem* item)
-{
- return item->impl->wrapper;
-}
-
-static gboolean
-boolean_handled_accumulator(GSignalInvocationHint* ihint,
- GValue* return_accu,
- const GValue* handler_return,
- gpointer dummy)
-{
- gboolean continue_emission;
- gboolean signal_handled;
-
- signal_handled = g_value_get_boolean(handler_return);
- g_value_set_boolean(return_accu, signal_handled);
- continue_emission = !signal_handled;
-
- return continue_emission;
-}
-
-/* Class initialization function for GanvItemClass */
-static void
-ganv_item_class_init(GanvItemClass* klass)
-{
- GObjectClass* gobject_class;
-
- gobject_class = (GObjectClass*)klass;
-
- item_parent_class = (GtkObjectClass*)g_type_class_peek_parent(klass);
-
- gobject_class->set_property = ganv_item_set_property;
- gobject_class->get_property = ganv_item_get_property;
-
- g_object_class_install_property
- (gobject_class, ITEM_PROP_PARENT,
- g_param_spec_object("parent", NULL, NULL,
- GANV_TYPE_ITEM,
- (GParamFlags)(G_PARAM_READABLE | G_PARAM_WRITABLE)));
-
- g_object_class_install_property
- (gobject_class, ITEM_PROP_X,
- g_param_spec_double("x",
- _("X"),
- _("X"),
- -G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
- (GParamFlags)(G_PARAM_READABLE | G_PARAM_WRITABLE)));
- g_object_class_install_property
- (gobject_class, ITEM_PROP_Y,
- g_param_spec_double("y",
- _("Y"),
- _("Y"),
- -G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
- (GParamFlags)(G_PARAM_READABLE | G_PARAM_WRITABLE)));
-
- g_object_class_install_property
- (gobject_class, ITEM_PROP_MANAGED,
- g_param_spec_boolean("managed",
- _("Managed"),
- _("Whether the item is managed by its parent"),
- 0,
- (GParamFlags)(G_PARAM_READABLE | G_PARAM_WRITABLE)));
-
- item_signals[ITEM_EVENT]
- = g_signal_new("event",
- G_TYPE_FROM_CLASS(klass),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET(GanvItemClass, event),
- boolean_handled_accumulator, NULL,
- ganv_marshal_BOOLEAN__BOXED,
- G_TYPE_BOOLEAN, 1,
- GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
-
- gobject_class->dispose = ganv_item_dispose;
-
- klass->realize = ganv_item_realize;
- klass->unrealize = ganv_item_unrealize;
- klass->map = ganv_item_map;
- klass->unmap = ganv_item_unmap;
- klass->update = ganv_item_update;
- klass->point = ganv_item_point;
- klass->bounds = ganv_item_default_bounds;
-}
diff --git a/src/module.c b/src/module.c
deleted file mode 100644
index bad930b..0000000
--- a/src/module.c
+++ /dev/null
@@ -1,859 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2016 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "ganv/canvas.h"
-#include "ganv/module.h"
-#include "ganv/port.h"
-#include "ganv/widget.h"
-
-#include "./color.h"
-#include "./boilerplate.h"
-#include "./gettext.h"
-#include "./ganv-private.h"
-
-#define FOREACH_PORT(ports, i) \
- for (GanvPort** i = (GanvPort**)ports->pdata; \
- i != (GanvPort**)ports->pdata + ports->len; ++i)
-
-#define FOREACH_PORT_CONST(ports, i) \
- for (const GanvPort** i = (const GanvPort**)ports->pdata; \
- i != (const GanvPort**)ports->pdata + ports->len; ++i)
-
-static const double PAD = 2.0;
-static const double EDGE_PAD = 5.0;
-static const double MODULE_LABEL_PAD = 2.0;
-
-G_DEFINE_TYPE_WITH_CODE(GanvModule, ganv_module, GANV_TYPE_BOX,
- G_ADD_PRIVATE(GanvModule))
-
-static GanvBoxClass* parent_class;
-
-enum {
- PROP_0
-};
-
-static void
-ganv_module_init(GanvModule* module)
-{
- GanvModulePrivate* impl = ganv_module_get_instance_private(module);
-
- module->impl = impl;
-
- GANV_NODE(module)->impl->can_head = FALSE;
- GANV_NODE(module)->impl->can_tail = FALSE;
-
- impl->ports = g_ptr_array_new();
- impl->embed_item = NULL;
- impl->embed_width = 0;
- impl->embed_height = 0;
- impl->widest_input = 0.0;
- impl->widest_output = 0.0;
- impl->must_reorder = FALSE;
-}
-
-static void
-ganv_module_destroy(GtkObject* object)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_MODULE(object));
-
- GanvModule* module = GANV_MODULE(object);
- GanvModulePrivate* impl = module->impl;
-
- if (impl->ports) {
- FOREACH_PORT(impl->ports, p) {
- g_object_unref(GTK_OBJECT(*p));
- }
- g_ptr_array_free(impl->ports, TRUE);
- impl->ports = NULL;
- }
-
- if (impl->embed_item) {
- g_object_unref(GTK_OBJECT(impl->embed_item));
- impl->embed_item = NULL;
- }
-
- if (GTK_OBJECT_CLASS(parent_class)->destroy) {
- (*GTK_OBJECT_CLASS(parent_class)->destroy)(object);
- }
-}
-
-static void
-ganv_module_set_property(GObject* object,
- guint prop_id,
- const GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_MODULE(object));
-
- switch (prop_id) {
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_module_get_property(GObject* object,
- guint prop_id,
- GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_MODULE(object));
-
- switch (prop_id) {
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-typedef struct {
- double embed_x;
- double width;
- double input_width;
- double output_width;
- gboolean horiz;
- gboolean embed_between;
-} Metrics;
-
-static void
-title_size(GanvModule* module, double* w, double* h)
-{
- if (module->box.node.impl->label) {
- g_object_get(G_OBJECT(module->box.node.impl->label),
- "width", w,
- "height", h,
- NULL);
- } else {
- *w = *h = 0.0;
- }
-}
-
-static void
-measure(GanvModule* module, Metrics* m)
-{
- memset(m, '\0', sizeof(Metrics));
-
- double title_w, title_h;
- title_size(module, &title_w, &title_h);
-
- GanvCanvas* canvas = ganv_item_get_canvas(GANV_ITEM(module));
- GanvText* canvas_title = GANV_NODE(module)->impl->label;
- GanvModulePrivate* impl = module->impl;
-
- if (ganv_canvas_get_direction(canvas) == GANV_DIRECTION_DOWN) {
- double contents_width = 0.0;
- if (canvas_title) {
- contents_width += title_w + (2.0 * PAD);
- }
-
- m->embed_x = 0;
- m->input_width = ganv_module_get_empty_port_breadth(module);
- m->output_width = ganv_module_get_empty_port_breadth(module);
-
- // TODO: cache this or merge with resize_right
- unsigned n_inputs = 0;
- unsigned n_outputs = 0;
- FOREACH_PORT(impl->ports, pi) {
- if ((*pi)->impl->is_input) {
- ++n_inputs;
- } else {
- ++n_outputs;
- }
- }
-
- const unsigned hor_ports = MAX(1, MAX(n_inputs, n_outputs));
- const double ports_width = (2 * EDGE_PAD) +
- ((m->input_width) * hor_ports) +
- ((PAD + 1.0) * (hor_ports - 1));
-
- m->width = MAX(contents_width, ports_width);
- m->width = MAX(m->width, impl->embed_width);
-
- if (impl->embed_item) {
- m->width = MAX(impl->embed_width + 2.0 * PAD, m->width);
- m->embed_x = PAD;
- }
- return;
- }
-
- // The amount of space between a port edge and the module edge (on the
- // side that the port isn't right on the edge).
- const double hor_pad = (canvas_title ? 10.0 : 20.0);
-
- m->width = (canvas_title) ? title_w + 10.0 : 1.0;
-
- // Title is wide or there is an embedded widget,
- // put inputs and outputs beside each other
- m->horiz = (impl->embed_item ||
- (impl->widest_input + impl->widest_output + 10.0
- < MAX(m->width, impl->embed_width)));
-
- // Fit ports to module (or vice-versa)
- m->input_width = impl->widest_input;
- m->output_width = impl->widest_output;
- double expand_w = (m->horiz ? (m->width / 2.0) : m->width) - hor_pad;
- if (!impl->embed_item) {
- m->input_width = MAX(impl->widest_input, expand_w);
- m->output_width = MAX(impl->widest_output, expand_w);
- }
-
- const double widest = MAX(m->input_width, m->output_width);
-
- if (impl->embed_item) {
- double above_w = MAX(m->width, widest + hor_pad);
- double between_w = MAX(m->width,
- (m->input_width
- + m->output_width
- + impl->embed_width));
-
- above_w = MAX(above_w, impl->embed_width);
-
- // Decide where to place embedded widget if necessary)
- if (impl->embed_width < impl->embed_height * 2.0) {
- m->embed_between = TRUE;
- m->width = between_w;
- m->embed_x = m->input_width;
- } else {
- m->width = above_w;
- m->embed_x = 2.0;
- }
- }
-
- if (!canvas_title && (impl->widest_input == 0.0
- || impl->widest_output == 0.0)) {
- m->width += 10.0;
- }
-
- m->width += 4.0;
- m->width = MAX(m->width, widest + hor_pad);
-}
-
-static void
-place_title(GanvModule* module, GanvDirection dir)
-{
- GanvBox* box = GANV_BOX(module);
- GanvText* canvas_title = GANV_NODE(module)->impl->label;
-
- double title_w, title_h;
- title_size(module, &title_w, &title_h);
-
- if (!canvas_title) {
- return;
- }
-
- GanvItem* t = GANV_ITEM(canvas_title);
- if (dir == GANV_DIRECTION_RIGHT) {
- t->impl->x = (ganv_box_get_width(box) - title_w) / 2.0;
- t->impl->y = 1.0;
- } else {
- t->impl->x = (ganv_box_get_width(box) - title_w) / 2.0;
- t->impl->y = ganv_module_get_empty_port_depth(module) + 1.0;
- }
-}
-
-static void
-resize_right(GanvModule* module)
-{
- GanvCanvas* canvas = ganv_item_get_canvas(GANV_ITEM(module));
- GanvModulePrivate* impl = module->impl;
-
- Metrics m;
- measure(module, &m);
-
- double title_w, title_h;
- title_size(module, &title_w, &title_h);
-
- // Basic height contains title
- double header_height = title_h ? (3.0 + title_h) : EDGE_PAD;
-
- if (impl->embed_item) {
- ganv_item_set(impl->embed_item,
- "x", (double)m.embed_x,
- "y", header_height,
- NULL);
- }
-
- // Actually set width and height
- ganv_box_set_width(GANV_BOX(module), m.width);
-
- // Offset ports below embedded widget
- if (!m.embed_between) {
- header_height += impl->embed_height;
- }
-
- // Move ports to appropriate locations
- double in_y = header_height;
- double out_y = header_height;
- FOREACH_PORT(impl->ports, pi) {
- GanvPort* const p = (*pi);
- GanvBox* const pbox = GANV_BOX(p);
- GanvNode* const pnode = GANV_NODE(p);
- const double h = ganv_box_get_height(pbox);
-
- // Offset to shift ports to make borders line up
- const double border_off = (GANV_NODE(module)->impl->border_width -
- pnode->impl->border_width) / 2.0;
-
- if (p->impl->is_input) {
- ganv_node_move_to(pnode, -border_off, in_y + 1.0);
- ganv_box_set_width(pbox, m.input_width);
- in_y += h + pnode->impl->border_width + 1.0;
-
- ganv_canvas_for_each_edge_to(
- canvas, pnode,
- (GanvEdgeFunc)ganv_edge_update_location, NULL);
- } else {
- ganv_node_move_to(pnode, m.width - m.output_width + border_off, out_y + 1.0);
- ganv_box_set_width(pbox, m.output_width);
- out_y += h + pnode->impl->border_width + 1.0;
-
- ganv_canvas_for_each_edge_from(
- canvas, pnode,
- (GanvEdgeFunc)ganv_edge_update_location, NULL);
- }
-
- if (!m.horiz) {
- in_y = MAX(in_y, out_y);
- out_y = MAX(in_y, out_y);
- }
- }
-
- double height = MAX(in_y, out_y) + EDGE_PAD;
- if (impl->embed_item && m.embed_between)
- height = MAX(height, impl->embed_height + header_height + 2.0);
-
- ganv_box_set_height(GANV_BOX(module), height);
-
- place_title(module, GANV_DIRECTION_RIGHT);
-}
-
-static void
-resize_down(GanvModule* module)
-{
- GanvCanvas* canvas = ganv_item_get_canvas(GANV_ITEM(module));
- GanvModulePrivate* impl = module->impl;
-
- Metrics m;
- measure(module, &m);
-
- double title_w, title_h;
- title_size(module, &title_w, &title_h);
-
- const double port_depth = ganv_module_get_empty_port_depth(module);
- const double port_breadth = ganv_module_get_empty_port_breadth(module);
-
- if (impl->embed_item) {
- ganv_item_set(impl->embed_item,
- "x", (double)m.embed_x,
- "y", port_depth + title_h,
- NULL);
- }
-
- const double height = PAD + title_h
- + impl->embed_height + (port_depth * 2.0);
-
- // Move ports to appropriate locations
- guint in_count = 0;
- guint out_count = 0;
- double in_x = 0.0;
- double out_x = 0.0;
- FOREACH_PORT(impl->ports, pi) {
- GanvPort* const p = (*pi);
- GanvBox* const pbox = GANV_BOX(p);
- GanvNode* const pnode = GANV_NODE(p);
- ganv_box_set_width(pbox, port_breadth);
- ganv_box_set_height(pbox, port_depth);
-
- // Offset to shift ports to make borders line up
- const double border_off = (GANV_NODE(module)->impl->border_width -
- pnode->impl->border_width) / 2.0;
-
- if (p->impl->is_input) {
- in_x = EDGE_PAD + (in_count++ * (port_breadth + PAD + 1.0));
- ganv_node_move_to(pnode, in_x, -border_off);
- ganv_canvas_for_each_edge_to(
- canvas, pnode,
- (GanvEdgeFunc)ganv_edge_update_location, NULL);
- } else {
- out_x = EDGE_PAD + (out_count++ * (port_breadth + PAD + 1.0));
- ganv_node_move_to(pnode, out_x, height - port_depth + border_off);
- ganv_canvas_for_each_edge_from(
- canvas, pnode,
- (GanvEdgeFunc)ganv_edge_update_location, NULL);
- }
- }
-
- ganv_box_set_height(GANV_BOX(module), height);
- ganv_box_set_width(GANV_BOX(module), m.width);
- place_title(module, GANV_DIRECTION_DOWN);
-}
-
-static void
-measure_ports(GanvModule* module)
-{
- GanvModulePrivate* impl = module->impl;
-
- impl->widest_input = 0.0;
- impl->widest_output = 0.0;
- FOREACH_PORT_CONST(impl->ports, pi) {
- const GanvPort* const p = (*pi);
- const double w = ganv_port_get_natural_width(p);
- if (p->impl->is_input) {
- if (w > impl->widest_input) {
- impl->widest_input = w;
- }
- } else {
- if (w > impl->widest_output) {
- impl->widest_output = w;
- }
- }
- }
-}
-
-static void
-ganv_module_resize(GanvNode* self)
-{
- GanvModule* module = GANV_MODULE(self);
- GanvNode* node = GANV_NODE(self);
- GanvCanvas* canvas = ganv_item_get_canvas(GANV_ITEM(module));
-
- double label_w = 0.0;
- double label_h = 0.0;
- if (node->impl->label) {
- g_object_get(node->impl->label,
- "width", &label_w,
- "height", &label_h,
- NULL);
- }
-
- measure_ports(module);
-
- ganv_box_set_width(GANV_BOX(module), label_w + (MODULE_LABEL_PAD * 2.0));
- ganv_box_set_height(GANV_BOX(module), label_h);
-
- switch (ganv_canvas_get_direction(canvas)) {
- case GANV_DIRECTION_RIGHT:
- resize_right(module);
- break;
- case GANV_DIRECTION_DOWN:
- resize_down(module);
- break;
- }
-
- if (GANV_NODE_CLASS(parent_class)->resize) {
- GANV_NODE_CLASS(parent_class)->resize(self);
- }
-}
-
-static void
-ganv_module_redraw_text(GanvNode* self)
-{
- FOREACH_PORT(GANV_MODULE(self)->impl->ports, p) {
- ganv_node_redraw_text(GANV_NODE(*p));
- }
-
- if (parent_class->parent_class.redraw_text) {
- parent_class->parent_class.redraw_text(self);
- }
-}
-
-static void
-ganv_module_add_port(GanvModule* module,
- GanvPort* port)
-{
- GanvModulePrivate* impl = module->impl;
-
- // Update widest input/output measurements if necessary
- const double width = ganv_port_get_natural_width(port);
- if (port->impl->is_input && width > impl->widest_input) {
- impl->widest_input = width;
- } else if (!port->impl->is_input && width > impl->widest_output) {
- impl->widest_output = width;
- }
-
- // Add to port array
- g_ptr_array_add(impl->ports, port);
-
- // Request update with resize and reorder
- GANV_NODE(module)->impl->must_resize = TRUE;
- impl->must_reorder = TRUE;
-}
-
-static void
-ganv_module_remove_port(GanvModule* module,
- GanvPort* port)
-{
- gboolean removed = g_ptr_array_remove(module->impl->ports, port);
- if (removed) {
- const double width = ganv_box_get_width(GANV_BOX(port));
- // Find new widest input or output, if necessary
- if (port->impl->is_input && width >= module->impl->widest_input) {
- module->impl->widest_input = 0;
- FOREACH_PORT_CONST(module->impl->ports, i) {
- const GanvPort* const p = (*i);
- const double w = ganv_box_get_width(GANV_BOX(p));
- if (p->impl->is_input && w >= module->impl->widest_input) {
- module->impl->widest_input = w;
- }
- }
- } else if (!port->impl->is_input && width >= module->impl->widest_output) {
- module->impl->widest_output = 0;
- FOREACH_PORT_CONST(module->impl->ports, i) {
- const GanvPort* const p = (*i);
- const double w = ganv_box_get_width(GANV_BOX(p));
- if (!p->impl->is_input && w >= module->impl->widest_output) {
- module->impl->widest_output = w;
- }
- }
- }
-
- GANV_NODE(module)->impl->must_resize = TRUE;
- } else {
- fprintf(stderr, "Failed to find port to remove\n");
- }
-}
-
-static void
-ganv_module_add(GanvItem* item, GanvItem* child)
-{
- if (GANV_IS_PORT(child)) {
- ganv_module_add_port(GANV_MODULE(item), GANV_PORT(child));
- }
- ganv_item_request_update(item);
- if (GANV_ITEM_CLASS(parent_class)->add) {
- GANV_ITEM_CLASS(parent_class)->add(item, child);
- }
-}
-
-static void
-ganv_module_remove(GanvItem* item, GanvItem* child)
-{
- if (GANV_IS_PORT(child)) {
- ganv_module_remove_port(GANV_MODULE(item), GANV_PORT(child));
- }
- ganv_item_request_update(item);
- if (GANV_ITEM_CLASS(parent_class)->remove) {
- GANV_ITEM_CLASS(parent_class)->remove(item, child);
- }
-}
-
-static int
-ptr_sort(const GanvPort** a, const GanvPort** b, const PortOrderCtx* ctx)
-{
- return ctx->port_cmp(*a, *b, ctx->data);
-}
-
-static void
-ganv_module_update(GanvItem* item, int flags)
-{
- GanvModule* module = GANV_MODULE(item);
- GanvCanvas* canvas = ganv_item_get_canvas(item);
-
- if (module->impl->must_reorder) {
- // Sort ports array
- PortOrderCtx ctx = ganv_canvas_get_port_order(canvas);
- if (ctx.port_cmp) {
- g_ptr_array_sort_with_data(module->impl->ports,
- (GCompareDataFunc)ptr_sort,
-
- &ctx);
- }
- module->impl->must_reorder = FALSE;
- }
-
- if (module->impl->embed_item) {
- // Kick the embedded item to update position if we have moved
- ganv_item_move(GANV_ITEM(module->impl->embed_item), 0.0, 0.0);
- }
-
- FOREACH_PORT(module->impl->ports, p) {
- ganv_item_invoke_update(GANV_ITEM(*p), flags);
- }
-
- if (module->impl->embed_item) {
- ganv_item_invoke_update(GANV_ITEM(module->impl->embed_item), flags);
- }
-
- GANV_ITEM_CLASS(parent_class)->update(item, flags);
-}
-
-static void
-ganv_module_draw(GanvItem* item,
- cairo_t* cr, double cx, double cy, double cw, double ch)
-{
- GanvNode* node = GANV_NODE(item);
- GanvModule* module = GANV_MODULE(item);
-
- // Draw box
- if (GANV_ITEM_CLASS(parent_class)->draw) {
- (*GANV_ITEM_CLASS(parent_class)->draw)(item, cr, cx, cy, cw, ch);
- }
-
- // Draw label
- if (node->impl->label) {
- GanvItem* label_item = GANV_ITEM(node->impl->label);
- GANV_ITEM_GET_CLASS(label_item)->draw(label_item, cr, cx, cy, cw, ch);
- }
-
- // Draw ports
- FOREACH_PORT(module->impl->ports, p) {
- GANV_ITEM_GET_CLASS(GANV_ITEM(*p))->draw(
- GANV_ITEM(*p), cr, cx, cy, cw, ch);
- }
-
- // Draw embed item
- if (module->impl->embed_item) {
- GANV_ITEM_GET_CLASS(module->impl->embed_item)->draw(
- module->impl->embed_item, cr, cx, cy, cw, ch);
- }
-}
-
-static void
-ganv_module_move_to(GanvNode* node,
- double x,
- double y)
-{
- GanvModule* module = GANV_MODULE(node);
- GANV_NODE_CLASS(parent_class)->move_to(node, x, y);
- FOREACH_PORT(module->impl->ports, p) {
- ganv_node_move(GANV_NODE(*p), 0.0, 0.0);
- }
- if (module->impl->embed_item) {
- ganv_item_move(GANV_ITEM(module->impl->embed_item), 0.0, 0.0);
- }
-}
-
-static void
-ganv_module_move(GanvNode* node,
- double dx,
- double dy)
-{
- GanvModule* module = GANV_MODULE(node);
- GANV_NODE_CLASS(parent_class)->move(node, dx, dy);
- FOREACH_PORT(module->impl->ports, p) {
- ganv_node_move(GANV_NODE(*p), 0.0, 0.0);
- }
- if (module->impl->embed_item) {
- ganv_item_move(GANV_ITEM(module->impl->embed_item), 0.0, 0.0);
- }
-}
-
-static double
-ganv_module_point(GanvItem* item, double x, double y, GanvItem** actual_item)
-{
- GanvModule* module = GANV_MODULE(item);
-
- double d = GANV_ITEM_CLASS(parent_class)->point(item, x, y, actual_item);
-
- if (!*actual_item) {
- // Point is not inside module at all, no point in checking children
- return d;
- }
-
- FOREACH_PORT(module->impl->ports, p) {
- GanvItem* const port = GANV_ITEM(*p);
-
- *actual_item = NULL;
- d = GANV_ITEM_GET_CLASS(port)->point(
- port, x - port->impl->x, y - port->impl->y, actual_item);
-
- if (*actual_item) {
- // Point is inside a port
- return d;
- }
- }
-
- // Point is inside module, but not a child port
- *actual_item = item;
- return 0.0;
-}
-
-static void
-ganv_module_class_init(GanvModuleClass* klass)
-{
- GObjectClass* gobject_class = (GObjectClass*)klass;
- GtkObjectClass* object_class = (GtkObjectClass*)klass;
- GanvItemClass* item_class = (GanvItemClass*)klass;
- GanvNodeClass* node_class = (GanvNodeClass*)klass;
-
- parent_class = GANV_BOX_CLASS(g_type_class_peek_parent(klass));
-
- gobject_class->set_property = ganv_module_set_property;
- gobject_class->get_property = ganv_module_get_property;
-
- object_class->destroy = ganv_module_destroy;
-
- item_class->add = ganv_module_add;
- item_class->remove = ganv_module_remove;
- item_class->update = ganv_module_update;
- item_class->draw = ganv_module_draw;
- item_class->point = ganv_module_point;
-
- node_class->move = ganv_module_move;
- node_class->move_to = ganv_module_move_to;
- node_class->resize = ganv_module_resize;
- node_class->redraw_text = ganv_module_redraw_text;
-}
-
-GanvModule*
-ganv_module_new(GanvCanvas* canvas,
- const char* first_property_name, ...)
-{
- GanvModule* module = GANV_MODULE(
- g_object_new(ganv_module_get_type(), "canvas", canvas, NULL));
-
- va_list args;
- va_start(args, first_property_name);
- g_object_set_valist(G_OBJECT(module), first_property_name, args);
- va_end(args);
-
- return module;
-}
-
-guint
-ganv_module_num_ports(const GanvModule* module)
-{
- return module->impl->ports ? module->impl->ports->len : 0;
-}
-
-GanvPort*
-ganv_module_get_port(GanvModule* module,
- guint index)
-{
- return (GanvPort*)g_ptr_array_index(module->impl->ports, index);
-}
-
-double
-ganv_module_get_empty_port_breadth(const GanvModule* module)
-{
- return ganv_module_get_empty_port_depth(module) * 2.0;
-}
-
-double
-ganv_module_get_empty_port_depth(const GanvModule* module)
-{
- GanvCanvas* canvas = ganv_item_get_canvas(GANV_ITEM(module));
-
- return ganv_canvas_get_font_size(canvas) * 1.1;
-}
-
-static void
-on_embed_size_request(GtkWidget* widget,
- GtkRequisition* r,
- void* user_data)
-{
- GanvModule* module = GANV_MODULE(user_data);
- GanvModulePrivate* impl = module->impl;
- if (impl->embed_width == r->width && impl->embed_height == r->height) {
- return;
- }
-
- impl->embed_width = r->width;
- impl->embed_height = r->height;
- GANV_NODE(module)->impl->must_resize = TRUE;
-
- GtkAllocation allocation;
- allocation.width = r->width;
- allocation.height = r->width;
-
- gtk_widget_size_allocate(widget, &allocation);
- ganv_item_set(impl->embed_item,
- "width", (double)r->width,
- "height", (double)r->height,
- NULL);
-}
-
-void
-ganv_module_embed(GanvModule* module,
- GtkWidget* widget)
-{
- GanvModulePrivate* impl = module->impl;
- if (!widget && !impl->embed_item) {
- return;
- }
-
- if (impl->embed_item) {
- // Free existing embedded widget
- gtk_object_destroy(GTK_OBJECT(impl->embed_item));
- impl->embed_item = NULL;
- }
-
- if (!widget) {
- // Removing an existing embedded widget
- impl->embed_width = 0;
- impl->embed_height = 0;
- GANV_NODE(module)->impl->must_resize = TRUE;
- ganv_item_request_update(GANV_ITEM(module));
- return;
- }
-
- double title_w, title_h;
- title_size(module, &title_w, &title_h);
-
- impl->embed_item = ganv_item_new(
- GANV_ITEM(module),
- ganv_widget_get_type(),
- "x", 2.0,
- "y", 4.0 + title_h,
- "widget", widget,
- NULL);
-
- GtkRequisition r;
- gtk_widget_show_all(widget);
- gtk_widget_size_request(widget, &r);
- on_embed_size_request(widget, &r, module);
- ganv_item_show(impl->embed_item);
-
- g_signal_connect(widget, "size-request",
- G_CALLBACK(on_embed_size_request), module);
-
- GANV_NODE(module)->impl->must_resize = TRUE;
- ganv_item_request_update(GANV_ITEM(module));
-}
-
-void
-ganv_module_set_direction(GanvModule* module,
- GanvDirection direction)
-{
- FOREACH_PORT(module->impl->ports, p) {
- ganv_port_set_direction(*p, direction);
- }
- GANV_NODE(module)->impl->must_resize = TRUE;
- ganv_item_request_update(GANV_ITEM(module));
-}
-
-void
-ganv_module_for_each_port(GanvModule* module,
- GanvPortFunc f,
- void* data)
-{
- GanvModulePrivate* impl = module->impl;
- const int len = impl->ports->len;
- GanvPort** copy = (GanvPort**)malloc(sizeof(GanvPort*) * len);
- memcpy(copy, impl->ports->pdata, sizeof(GanvPort*) * len);
-
- for (int i = 0; i < len; ++i) {
- f(copy[i], data);
- }
-
- free(copy);
-}
diff --git a/src/node.c b/src/node.c
deleted file mode 100644
index 4955f36..0000000
--- a/src/node.c
+++ /dev/null
@@ -1,897 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2016 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "ganv/canvas.h"
-#include "ganv/node.h"
-
-#include "./boilerplate.h"
-#include "./color.h"
-#include "./ganv-marshal.h"
-#include "./ganv-private.h"
-#include "./gettext.h"
-
-guint signal_moved;
-
-G_DEFINE_TYPE_WITH_CODE(GanvNode, ganv_node, GANV_TYPE_ITEM,
- G_ADD_PRIVATE(GanvNode))
-
-static GanvItemClass* parent_class;
-
-enum {
- PROP_0,
- PROP_CANVAS,
- PROP_PARTNER,
- PROP_LABEL,
- PROP_SHOW_LABEL,
- PROP_DASH_LENGTH,
- PROP_DASH_OFFSET,
- PROP_BORDER_WIDTH,
- PROP_FILL_COLOR,
- PROP_BORDER_COLOR,
- PROP_CAN_TAIL,
- PROP_CAN_HEAD,
- PROP_IS_SOURCE,
- PROP_SELECTED,
- PROP_HIGHLIGHTED,
- PROP_DRAGGABLE,
- PROP_GRABBED
-};
-
-static void
-ganv_node_init(GanvNode* node)
-{
- GanvNodePrivate* impl = ganv_node_get_instance_private(node);
-
- node->impl = impl;
-
- impl->partner = NULL;
- impl->label = NULL;
- impl->dash_length = 0.0;
- impl->dash_offset = 0.0;
- impl->border_width = 2.0;
- impl->fill_color = DEFAULT_FILL_COLOR;
- impl->border_color = DEFAULT_BORDER_COLOR;
- impl->can_tail = FALSE;
- impl->can_head = FALSE;
- impl->is_source = FALSE;
- impl->selected = FALSE;
- impl->highlighted = FALSE;
- impl->draggable = FALSE;
- impl->show_label = TRUE;
- impl->grabbed = FALSE;
- impl->must_resize = FALSE;
-#ifdef GANV_FDGL
- impl->force.x = 0.0;
- impl->force.y = 0.0;
- impl->vel.x = 0.0;
- impl->vel.y = 0.0;
- impl->connected = FALSE;
-#endif
-}
-
-static void
-ganv_node_realize(GanvItem* item)
-{
- GANV_ITEM_CLASS(parent_class)->realize(item);
- ganv_canvas_add_node(ganv_item_get_canvas(item), GANV_NODE(item));
-}
-
-static void
-ganv_node_destroy(GtkObject* object)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_NODE(object));
-
- GanvNode* node = GANV_NODE(object);
- GanvNodePrivate* impl = node->impl;
- if (impl->label) {
- g_object_unref(impl->label);
- impl->label = NULL;
- }
-
- GanvItem* item = GANV_ITEM(object);
- ganv_node_disconnect(node);
- if (item->impl->canvas) {
- ganv_canvas_remove_node(item->impl->canvas, node);
- }
-
- if (GTK_OBJECT_CLASS(parent_class)->destroy) {
- (*GTK_OBJECT_CLASS(parent_class)->destroy)(object);
- }
-
- impl->partner = NULL;
- item->impl->canvas = NULL;
-}
-
-static void
-ganv_node_update(GanvItem* item, int flags)
-{
- GanvNode* node = GANV_NODE(item);
- if (node->impl->must_resize) {
- ganv_node_resize(node);
- node->impl->must_resize = FALSE;
- }
-
- if (node->impl->label) {
- ganv_item_invoke_update(GANV_ITEM(node->impl->label), flags);
- }
-
- GANV_ITEM_CLASS(parent_class)->update(item, flags);
-}
-
-static void
-ganv_node_draw(GanvItem* item,
- cairo_t* cr, double cx, double cy, double cw, double ch)
-{
- /* TODO: Label is not drawn here because ports need to draw control
- rects then the label on top. I can't see a way of solving this since
- there's no single time parent class draw needs to be called, so perhaps
- label shouldn't be part of this class... */
-}
-
-static void
-ganv_node_set_property(GObject* object,
- guint prop_id,
- const GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_NODE(object));
-
- GanvNode* node = GANV_NODE(object);
- GanvNodePrivate* impl = node->impl;
-
- switch (prop_id) {
- SET_CASE(DASH_LENGTH, double, impl->dash_length);
- SET_CASE(DASH_OFFSET, double, impl->dash_offset);
- SET_CASE(BORDER_WIDTH, double, impl->border_width);
- SET_CASE(FILL_COLOR, uint, impl->fill_color);
- SET_CASE(BORDER_COLOR, uint, impl->border_color);
- SET_CASE(CAN_TAIL, boolean, impl->can_tail);
- SET_CASE(CAN_HEAD, boolean, impl->can_head);
- SET_CASE(IS_SOURCE, boolean, impl->is_source);
- SET_CASE(HIGHLIGHTED, boolean, impl->highlighted);
- SET_CASE(DRAGGABLE, boolean, impl->draggable);
- SET_CASE(GRABBED, boolean, impl->grabbed);
- case PROP_PARTNER:
- impl->partner = (GanvNode*)g_value_get_object(value);
- break;
- case PROP_SELECTED:
- if (impl->selected != g_value_get_boolean(value)) {
- GanvItem* item = GANV_ITEM(object);
- impl->selected = g_value_get_boolean(value);
- if (item->impl->canvas) {
- if (impl->selected) {
- ganv_canvas_select_node(ganv_item_get_canvas(item), node);
- } else {
- ganv_canvas_unselect_node(ganv_item_get_canvas(item), node);
- }
- ganv_item_request_update(item);
- }
- }
- break;
- case PROP_CANVAS:
- if (!GANV_ITEM(object)->impl->parent) {
- GanvCanvas* canvas = GANV_CANVAS(g_value_get_object(value));
- g_object_set(object, "parent", ganv_canvas_root(canvas), NULL);
- ganv_canvas_add_node(canvas, node);
- } else {
- g_warning("Cannot change `canvas' property after construction");
- }
- break;
- case PROP_LABEL:
- ganv_node_set_label(node, g_value_get_string(value));
- break;
- case PROP_SHOW_LABEL:
- ganv_node_set_show_label(node, g_value_get_boolean(value));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_node_get_property(GObject* object,
- guint prop_id,
- GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_NODE(object));
-
- GanvNode* node = GANV_NODE(object);
- GanvNodePrivate* impl = node->impl;
-
- switch (prop_id) {
- GET_CASE(PARTNER, object, impl->partner);
- GET_CASE(LABEL, string, impl->label ? impl->label->impl->text : NULL);
- GET_CASE(DASH_LENGTH, double, impl->dash_length);
- GET_CASE(DASH_OFFSET, double, impl->dash_offset);
- GET_CASE(BORDER_WIDTH, double, impl->border_width);
- GET_CASE(FILL_COLOR, uint, impl->fill_color);
- GET_CASE(BORDER_COLOR, uint, impl->border_color);
- GET_CASE(CAN_TAIL, boolean, impl->can_tail);
- GET_CASE(CAN_HEAD, boolean, impl->can_head);
- GET_CASE(IS_SOURCE, boolean, impl->is_source);
- GET_CASE(SELECTED, boolean, impl->selected);
- GET_CASE(HIGHLIGHTED, boolean, impl->highlighted);
- GET_CASE(DRAGGABLE, boolean, impl->draggable);
- GET_CASE(GRABBED, boolean, impl->grabbed);
- case PROP_CANVAS:
- g_value_set_object(value, ganv_item_get_canvas(GANV_ITEM(object)));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_node_default_tail_vector(const GanvNode* self,
- const GanvNode* head,
- double* x,
- double* y,
- double* dx,
- double* dy)
-{
- GanvCanvas* canvas = ganv_item_get_canvas(GANV_ITEM(self));
-
- *x = GANV_ITEM(self)->impl->x;
- *y = GANV_ITEM(self)->impl->y;
-
- switch (ganv_canvas_get_direction(canvas)) {
- case GANV_DIRECTION_RIGHT:
- *dx = 1.0;
- *dy = 0.0;
- break;
- case GANV_DIRECTION_DOWN:
- *dx = 0.0;
- *dy = 1.0;
- break;
- }
-
- ganv_item_i2w(GANV_ITEM(self)->impl->parent, x, y);
-}
-
-static void
-ganv_node_default_head_vector(const GanvNode* self,
- const GanvNode* tail,
- double* x,
- double* y,
- double* dx,
- double* dy)
-{
- GanvCanvas* canvas = ganv_item_get_canvas(GANV_ITEM(self));
-
- *x = GANV_ITEM(self)->impl->x;
- *y = GANV_ITEM(self)->impl->y;
-
- switch (ganv_canvas_get_direction(canvas)) {
- case GANV_DIRECTION_RIGHT:
- *dx = -1.0;
- *dy = 0.0;
- break;
- case GANV_DIRECTION_DOWN:
- *dx = 0.0;
- *dy = -1.0;
- break;
- }
-
- ganv_item_i2w(GANV_ITEM(self)->impl->parent, x, y);
-}
-
-void
-ganv_node_get_draw_properties(const GanvNode* node,
- double* dash_length,
- double* border_color,
- double* fill_color)
-{
- GanvNodePrivate* impl = node->impl;
-
- *dash_length = impl->dash_length;
- *border_color = impl->border_color;
- *fill_color = impl->fill_color;
-
- if (impl->selected) {
- *dash_length = 4.0;
- *border_color = highlight_color(impl->border_color, 0x40);
- }
-
- if (impl->highlighted) {
- *border_color = highlight_color(impl->border_color, 0x40);
- *fill_color = impl->fill_color;
- }
-}
-
-void
-ganv_node_set_label(GanvNode* node, const char* str)
-{
- GanvNodePrivate* impl = node->impl;
- if (!str || str[0] == '\0') {
- if (impl->label) {
- gtk_object_destroy(GTK_OBJECT(impl->label));
- impl->label = NULL;
- }
- } else if (impl->label) {
- ganv_item_set(GANV_ITEM(impl->label),
- "text", str,
- NULL);
- } else {
- impl->label = GANV_TEXT(ganv_item_new(GANV_ITEM(node),
- ganv_text_get_type(),
- "text", str,
- "color", DEFAULT_TEXT_COLOR,
- "managed", TRUE,
- NULL));
- }
-
- impl->must_resize = TRUE;
- ganv_item_request_update(GANV_ITEM(node));
-}
-
-void
-ganv_node_set_show_label(GanvNode* node, gboolean show)
-{
- if (node->impl->label) {
- if (show) {
- ganv_item_show(GANV_ITEM(node->impl->label));
- } else {
- ganv_item_hide(GANV_ITEM(node->impl->label));
- }
- }
- node->impl->show_label = show;
- ganv_item_request_update(GANV_ITEM(node));
-}
-
-static void
-ganv_node_default_tick(GanvNode* self,
- double seconds)
-{
- GanvNode* node = GANV_NODE(self);
- node->impl->dash_offset = seconds * 8.0;
- ganv_item_request_update(GANV_ITEM(self));
-}
-
-static void
-ganv_node_default_disconnect(GanvNode* node)
-{
- GanvCanvas* canvas = ganv_item_get_canvas(GANV_ITEM(node));
- if (canvas) {
- ganv_canvas_for_each_edge_on(
- canvas, node, (GanvEdgeFunc)ganv_edge_disconnect, NULL);
- }
-}
-
-static void
-ganv_node_default_move(GanvNode* node,
- double dx,
- double dy)
-{
- GanvCanvas* canvas = ganv_item_get_canvas(GANV_ITEM(node));
- ganv_item_move(GANV_ITEM(node), dx, dy);
- ganv_canvas_for_each_edge_on(
- canvas, node, (GanvEdgeFunc)ganv_edge_update_location, NULL);
- ganv_item_request_update(GANV_ITEM(node));
-}
-
-static void
-ganv_node_default_move_to(GanvNode* node,
- double x,
- double y)
-{
- GanvItem* item = GANV_ITEM(node);
- GanvCanvas* canvas = ganv_item_get_canvas(item);
- item->impl->x = x;
- item->impl->y = y;
- if (node->impl->can_tail) {
- ganv_canvas_for_each_edge_from(
- canvas, node, (GanvEdgeFunc)ganv_edge_update_location, NULL);
- } else if (node->impl->can_head) {
- ganv_canvas_for_each_edge_to(
- canvas, node, (GanvEdgeFunc)ganv_edge_update_location, NULL);
- }
- ganv_item_request_update(GANV_ITEM(node));
-}
-
-static void
-ganv_node_default_resize(GanvNode* node)
-{
- GanvItem* item = GANV_ITEM(node);
- if (GANV_IS_NODE(item->impl->parent)) {
- ganv_node_resize(GANV_NODE(item->impl->parent));
- }
- node->impl->must_resize = FALSE;
-}
-
-static void
-ganv_node_default_redraw_text(GanvNode* node)
-{
- if (node->impl->label) {
- ganv_text_layout(node->impl->label);
- node->impl->must_resize = TRUE;
- ganv_item_request_update(GANV_ITEM(node));
- }
-}
-
-static gboolean
-ganv_node_default_event(GanvItem* item,
- GdkEvent* event)
-{
- GanvNode* node = GANV_NODE(item);
- GanvCanvas* canvas = ganv_item_get_canvas(GANV_ITEM(node));
-
- // FIXME: put these somewhere better
- static double last_x, last_y;
- static double drag_start_x, drag_start_y;
- static gboolean dragging = FALSE;
-
- switch (event->type) {
- case GDK_ENTER_NOTIFY:
- ganv_item_raise(GANV_ITEM(node));
- node->impl->highlighted = TRUE;
- ganv_item_request_update(item);
- return TRUE;
-
- case GDK_LEAVE_NOTIFY:
- ganv_item_lower(GANV_ITEM(node));
- node->impl->highlighted = FALSE;
- ganv_item_request_update(item);
- return TRUE;
-
- case GDK_BUTTON_PRESS:
- drag_start_x = event->button.x;
- drag_start_y = event->button.y;
- last_x = event->button.x;
- last_y = event->button.y;
- if (!ganv_canvas_get_locked(canvas) && node->impl->draggable && event->button.button == 1) {
- ganv_canvas_grab_item(
- GANV_ITEM(node),
- GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK|GDK_BUTTON_PRESS_MASK,
- ganv_canvas_get_move_cursor(canvas),
- event->button.time);
- node->impl->grabbed = TRUE;
- dragging = TRUE;
- return TRUE;
- }
- break;
-
- case GDK_BUTTON_RELEASE:
- if (dragging) {
- gboolean selected;
- g_object_get(G_OBJECT(node), "selected", &selected, NULL);
- ganv_canvas_ungrab_item(GANV_ITEM(node), event->button.time);
- node->impl->grabbed = FALSE;
- dragging = FALSE;
- if (event->button.x != drag_start_x || event->button.y != drag_start_y) {
- ganv_canvas_contents_changed(canvas);
- if (selected) {
- ganv_canvas_selection_move_finished(canvas);
- } else {
- const double x = GANV_ITEM(node)->impl->x;
- const double y = GANV_ITEM(node)->impl->y;
- g_signal_emit(node, signal_moved, 0, x, y, NULL);
- }
- } else {
- // Clicked
- if (selected) {
- ganv_canvas_unselect_node(canvas, node);
- } else {
- if (!(event->button.state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK))) {
- ganv_canvas_clear_selection(canvas);
- }
- ganv_canvas_select_node(canvas, node);
- }
- }
- return TRUE;
- }
- break;
-
- case GDK_MOTION_NOTIFY:
- if ((dragging && (event->motion.state & GDK_BUTTON1_MASK))) {
- gboolean selected;
- g_object_get(G_OBJECT(node), "selected", &selected, NULL);
-
- double new_x = event->motion.x;
- double new_y = event->motion.y;
-
- if (event->motion.is_hint) {
- int t_x;
- int t_y;
- GdkModifierType state;
- gdk_window_get_pointer(event->motion.window, &t_x, &t_y, &state);
- new_x = t_x;
- new_y = t_y;
- }
-
- const double dx = new_x - last_x;
- const double dy = new_y - last_y;
- if (selected) {
- ganv_canvas_move_selected_items(canvas, dx, dy);
- } else {
- ganv_node_move(node, dx, dy);
- }
-
- last_x = new_x;
- last_y = new_y;
- return TRUE;
- }
-
- default:
- break;
- }
-
- return FALSE;
-}
-
-static void
-ganv_node_class_init(GanvNodeClass* klass)
-{
- GObjectClass* gobject_class = (GObjectClass*)klass;
- GtkObjectClass* object_class = (GtkObjectClass*)klass;
- GanvItemClass* item_class = (GanvItemClass*)klass;
-
- parent_class = GANV_ITEM_CLASS(g_type_class_peek_parent(klass));
-
- gobject_class->set_property = ganv_node_set_property;
- gobject_class->get_property = ganv_node_get_property;
-
- g_object_class_install_property(
- gobject_class, PROP_CANVAS, g_param_spec_object(
- "canvas",
- _("Canvas"),
- _("The canvas this node is on."),
- GANV_TYPE_CANVAS,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_PARTNER, g_param_spec_object(
- "partner",
- _("Partner"),
- _("Partners are nodes that should be visually aligned to correspond"
- " to each other, even if they are not necessarily connected (e.g."
- " for separate modules representing the inputs and outputs of a"
- " single thing). When the canvas is arranged, the partner will"
- " be aligned as if there was an edge from this node to its"
- " partner."),
- GANV_TYPE_NODE,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_LABEL, g_param_spec_string(
- "label",
- _("Label"),
- _("The text to display as a label on this node."),
- NULL,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_SHOW_LABEL, g_param_spec_boolean(
- "show-label",
- _("Show label"),
- _("Whether or not to show the label."),
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_DASH_LENGTH, g_param_spec_double(
- "dash-length",
- _("Border dash length"),
- _("Length of border dashes, or zero for no dashing."),
- 0.0, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_DASH_OFFSET, g_param_spec_double(
- "dash-offset",
- _("Border dash offset"),
- _("Start offset for border dashes, used for selected animation."),
- 0.0, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_BORDER_WIDTH, g_param_spec_double(
- "border-width",
- _("Border width"),
- _("Width of the border line."),
- 0.0, G_MAXDOUBLE,
- 2.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_FILL_COLOR, g_param_spec_uint(
- "fill-color",
- _("Fill color"),
- _("Color of internal area."),
- 0, G_MAXUINT,
- DEFAULT_FILL_COLOR,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_BORDER_COLOR, g_param_spec_uint(
- "border-color",
- _("Border color"),
- _("Color of border line."),
- 0, G_MAXUINT,
- DEFAULT_BORDER_COLOR,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_CAN_TAIL, g_param_spec_boolean(
- "can-tail",
- _("Can tail"),
- _("Whether this node can be the tail of an edge."),
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_CAN_HEAD, g_param_spec_boolean(
- "can-head",
- _("Can head"),
- _("Whether this object can be the head of an edge."),
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_IS_SOURCE, g_param_spec_boolean(
- "is-source",
- _("Is source"),
- _("Whether this object should be positioned at the start of signal flow."),
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_SELECTED, g_param_spec_boolean(
- "selected",
- _("Selected"),
- _("Whether this object is selected."),
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_HIGHLIGHTED, g_param_spec_boolean(
- "highlighted",
- _("Highlighted"),
- _("Whether this object is highlighted."),
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_DRAGGABLE, g_param_spec_boolean(
- "draggable",
- _("Draggable"),
- _("Whether this object is draggable."),
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_GRABBED, g_param_spec_boolean(
- "grabbed",
- _("Grabbed"),
- _("Whether this object is grabbed by the user."),
- 0,
- G_PARAM_READWRITE));
-
- signal_moved = g_signal_new("moved",
- ganv_node_get_type(),
- G_SIGNAL_RUN_FIRST,
- 0, NULL, NULL,
- ganv_marshal_VOID__DOUBLE_DOUBLE,
- G_TYPE_NONE,
- 2,
- G_TYPE_DOUBLE,
- G_TYPE_DOUBLE,
- 0);
-
- object_class->destroy = ganv_node_destroy;
-
- item_class->realize = ganv_node_realize;
- item_class->event = ganv_node_default_event;
- item_class->update = ganv_node_update;
- item_class->draw = ganv_node_draw;
-
- klass->disconnect = ganv_node_default_disconnect;
- klass->move = ganv_node_default_move;
- klass->move_to = ganv_node_default_move_to;
- klass->resize = ganv_node_default_resize;
- klass->redraw_text = ganv_node_default_redraw_text;
- klass->tick = ganv_node_default_tick;
- klass->tail_vector = ganv_node_default_tail_vector;
- klass->head_vector = ganv_node_default_head_vector;
-}
-
-gboolean
-ganv_node_can_tail(const GanvNode* self)
-{
- return self->impl->can_tail;
-}
-
-gboolean
-ganv_node_can_head(const GanvNode* self)
-{
- return self->impl->can_head;
-}
-
-void
-ganv_node_set_is_source(const GanvNode* node, gboolean is_source)
-{
- node->impl->is_source = is_source;
-}
-
-gboolean
-ganv_node_is_within(const GanvNode* node,
- double x1,
- double y1,
- double x2,
- double y2)
-{
- return GANV_NODE_GET_CLASS(node)->is_within(node, x1, y1, x2, y2);
-}
-
-void
-ganv_node_tick(GanvNode* node,
- double seconds)
-{
- GanvNodeClass* klass = GANV_NODE_GET_CLASS(node);
- if (klass->tick) {
- klass->tick(node, seconds);
- }
-}
-
-void
-ganv_node_tail_vector(const GanvNode* self,
- const GanvNode* head,
- double* x1,
- double* y1,
- double* x2,
- double* y2)
-{
- GANV_NODE_GET_CLASS(self)->tail_vector(
- self, head, x1, y1, x2, y2);
-}
-
-void
-ganv_node_head_vector(const GanvNode* self,
- const GanvNode* tail,
- double* x1,
- double* y1,
- double* x2,
- double* y2)
-{
- GANV_NODE_GET_CLASS(self)->head_vector(
- self, tail, x1, y1, x2, y2);
-}
-
-const char*
-ganv_node_get_label(const GanvNode* node)
-{
- return node->impl->label ? node->impl->label->impl->text : NULL;
-}
-
-double
-ganv_node_get_border_width(const GanvNode* node)
-{
- return node->impl->border_width;
-}
-
-void
-ganv_node_set_border_width(const GanvNode* node, double border_width)
-{
- node->impl->border_width = border_width;
- ganv_item_request_update(GANV_ITEM(node));
-}
-
-double
-ganv_node_get_dash_length(const GanvNode* node)
-{
- return node->impl->dash_length;
-}
-
-void
-ganv_node_set_dash_length(const GanvNode* node, double dash_length)
-{
- node->impl->dash_length = dash_length;
- ganv_item_request_update(GANV_ITEM(node));
-}
-
-double
-ganv_node_get_dash_offset(const GanvNode* node)
-{
- return node->impl->dash_offset;
-}
-
-void
-ganv_node_set_dash_offset(const GanvNode* node, double dash_offset)
-{
- node->impl->dash_offset = dash_offset;
- ganv_item_request_update(GANV_ITEM(node));
-}
-
-guint
-ganv_node_get_fill_color(const GanvNode* node)
-{
- return node->impl->fill_color;
-}
-
-void
-ganv_node_set_fill_color(const GanvNode* node, guint fill_color)
-{
- node->impl->fill_color = fill_color;
- ganv_item_request_update(GANV_ITEM(node));
-}
-
-guint
-ganv_node_get_border_color(const GanvNode* node)
-{
- return node->impl->border_color;
-}
-
-void
-ganv_node_set_border_color(const GanvNode* node, guint border_color)
-{
- node->impl->border_color = border_color;
- ganv_item_request_update(GANV_ITEM(node));
-}
-
-GanvNode*
-ganv_node_get_partner(const GanvNode* node)
-{
- return node->impl->partner;
-}
-
-void
-ganv_node_move(GanvNode* node,
- double dx,
- double dy)
-{
- GANV_NODE_GET_CLASS(node)->move(node, dx, dy);
-}
-
-void
-ganv_node_move_to(GanvNode* node,
- double x,
- double y)
-{
- GANV_NODE_GET_CLASS(node)->move_to(node, x, y);
-}
-
-void
-ganv_node_resize(GanvNode* node)
-{
- GANV_NODE_GET_CLASS(node)->resize(node);
- node->impl->must_resize = FALSE;
-}
-
-void
-ganv_node_redraw_text(GanvNode* node)
-{
- GANV_NODE_GET_CLASS(node)->redraw_text(node);
-}
-
-void
-ganv_node_disconnect(GanvNode* node)
-{
- GANV_NODE_GET_CLASS(node)->disconnect(node);
-}
-
-gboolean
-ganv_node_is_selected(GanvNode* node)
-{
- gboolean selected = FALSE;
- g_object_get(node, "selected", &selected, NULL);
- return selected;
-}
diff --git a/src/port.c b/src/port.c
deleted file mode 100644
index fa76f22..0000000
--- a/src/port.c
+++ /dev/null
@@ -1,735 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2015 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <math.h>
-#include <stdlib.h>
-
-#include "ganv/canvas.h"
-#include "ganv/port.h"
-#include "ganv/module.h"
-
-#include "./boilerplate.h"
-#include "./color.h"
-#include "./ganv-private.h"
-#include "./gettext.h"
-
-static const double PORT_LABEL_HPAD = 4.0;
-static const double PORT_LABEL_VPAD = 1.0;
-
-static void
-ganv_port_update_control_slider(GanvPort* port, float value, gboolean force);
-
-G_DEFINE_TYPE_WITH_CODE(GanvPort, ganv_port, GANV_TYPE_BOX,
- G_ADD_PRIVATE(GanvPort))
-
-static GanvBoxClass* parent_class;
-
-enum {
- PROP_0,
- PROP_IS_INPUT,
- PROP_IS_CONTROLLABLE
-};
-
-enum {
- PORT_VALUE_CHANGED,
- PORT_LAST_SIGNAL
-};
-
-static guint port_signals[PORT_LAST_SIGNAL];
-
-static void
-ganv_port_init(GanvPort* port)
-{
- port->impl = ganv_port_get_instance_private(port);
-
- port->impl->control = NULL;
- port->impl->value_label = NULL;
- port->impl->is_input = TRUE;
- port->impl->is_controllable = FALSE;
-}
-
-static void
-ganv_port_destroy(GtkObject* object)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_PORT(object));
-
- GanvItem* item = GANV_ITEM(object);
- GanvPort* port = GANV_PORT(object);
- GanvCanvas* canvas = ganv_item_get_canvas(item);
- if (canvas) {
- if (port->impl->is_input) {
- ganv_canvas_for_each_edge_to(
- canvas, &port->box.node, (GanvEdgeFunc)ganv_edge_remove, NULL);
- } else {
- ganv_canvas_for_each_edge_from(
- canvas, &port->box.node, (GanvEdgeFunc)ganv_edge_remove, NULL);
- }
- }
-
- if (GTK_OBJECT_CLASS(parent_class)->destroy) {
- (*GTK_OBJECT_CLASS(parent_class)->destroy)(object);
- }
-}
-
-static void
-ganv_port_set_property(GObject* object,
- guint prop_id,
- const GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_PORT(object));
-
- GanvPort* port = GANV_PORT(object);
-
- switch (prop_id) {
- SET_CASE(IS_INPUT, boolean, port->impl->is_input);
- SET_CASE(IS_CONTROLLABLE, boolean, port->impl->is_controllable);
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_port_get_property(GObject* object,
- guint prop_id,
- GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_PORT(object));
-
- GanvPort* port = GANV_PORT(object);
-
- switch (prop_id) {
- GET_CASE(IS_INPUT, boolean, port->impl->is_input);
- GET_CASE(IS_CONTROLLABLE, boolean, port->impl->is_controllable);
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_port_update(GanvItem* item, int flags)
-{
- GanvPort* port = GANV_PORT(item);
- GanvPortPrivate* impl = port->impl;
-
- if (impl->control) {
- ganv_item_invoke_update(GANV_ITEM(impl->control->rect), flags);
- }
-
- if (impl->value_label) {
- ganv_item_invoke_update(GANV_ITEM(port->impl->value_label), flags);
- }
-
- GanvItemClass* item_class = GANV_ITEM_CLASS(parent_class);
- item_class->update(item, flags);
-}
-
-static void
-ganv_port_draw(GanvItem* item,
- cairo_t* cr, double cx, double cy, double cw, double ch)
-{
- GanvPort* port = GANV_PORT(item);
- GanvCanvas* canvas = ganv_item_get_canvas(item);
-
- // Draw Box
- GanvItemClass* item_class = GANV_ITEM_CLASS(parent_class);
- item_class->draw(item, cr, cx, cy, cw, ch);
-
- if (port->impl->control) {
- // Clip to port boundaries (to stay within radiused borders)
- cairo_save(cr);
- const double pad = GANV_NODE(port)->impl->border_width / 2.0;
- GanvBoxCoords coords = GANV_BOX(port)->impl->coords;
- ganv_item_i2w_pair(GANV_ITEM(port),
- &coords.x1, &coords.y1, &coords.x2, &coords.y2);
- ganv_box_path(GANV_BOX(port), cr,
- coords.x1 + pad, coords.y1 + pad,
- coords.x2 - pad, coords.y2 - pad,
- -pad);
- cairo_clip(cr);
-
- GanvItem* const rect = GANV_ITEM(port->impl->control->rect);
- GANV_ITEM_GET_CLASS(rect)->draw(rect, cr, cx, cy, cw, ch);
-
- cairo_restore(cr);
- }
-
- if (ganv_canvas_get_direction(canvas) == GANV_DIRECTION_DOWN ||
- !GANV_NODE(port)->impl->show_label) {
- return;
- }
-
- GanvItem* labels[2] = {
- GANV_ITEM(GANV_NODE(item)->impl->label),
- port->impl->value_label ? GANV_ITEM(port->impl->value_label) : NULL
- };
- for (int i = 0; i < 2; ++i) {
- if (labels[i] && (labels[i]->object.flags & GANV_ITEM_VISIBLE)) {
- GANV_ITEM_GET_CLASS(labels[i])->draw(
- labels[i], cr, cx, cy, cw, ch);
- }
- }
-}
-
-static void
-ganv_port_tail_vector(const GanvNode* self,
- const GanvNode* head,
- double* x,
- double* y,
- double* dx,
- double* dy)
-{
- GanvPort* port = GANV_PORT(self);
- GanvItem* item = &port->box.node.item;
- GanvCanvas* canvas = ganv_item_get_canvas(item);
-
- const double px = item->impl->x;
- const double py = item->impl->y;
- const double border_width = GANV_NODE(port)->impl->border_width;
-
- switch (ganv_canvas_get_direction(canvas)) {
- case GANV_DIRECTION_RIGHT:
- *x = px + ganv_box_get_width(&port->box) + (border_width / 2.0);
- *y = py + ganv_box_get_height(&port->box) / 2.0;
- *dx = 1.0;
- *dy = 0.0;
- break;
- case GANV_DIRECTION_DOWN:
- *x = px + ganv_box_get_width(&port->box) / 2.0;
- *y = py + ganv_box_get_height(&port->box) + (border_width / 2.0);
- *dx = 0.0;
- *dy = 1.0;
- break;
- }
-
- ganv_item_i2w(item->impl->parent, x, y);
-}
-
-static void
-ganv_port_head_vector(const GanvNode* self,
- const GanvNode* tail,
- double* x,
- double* y,
- double* dx,
- double* dy)
-{
- GanvPort* port = GANV_PORT(self);
- GanvItem* item = &port->box.node.item;
- GanvCanvas* canvas = ganv_item_get_canvas(item);
-
- const double px = item->impl->x;
- const double py = item->impl->y;
- const double border_width = GANV_NODE(port)->impl->border_width;
-
- switch (ganv_canvas_get_direction(canvas)) {
- case GANV_DIRECTION_RIGHT:
- *x = px - (border_width / 2.0);
- *y = py + ganv_box_get_height(&port->box) / 2.0;
- *dx = -1.0;
- *dy = 0.0;
- break;
- case GANV_DIRECTION_DOWN:
- *x = px + ganv_box_get_width(&port->box) / 2.0;
- *y = py - (border_width / 2.0);
- *dx = 0.0;
- *dy = -1.0;
- break;
- }
-
- ganv_item_i2w(item->impl->parent, x, y);
-}
-
-static void
-ganv_port_place_labels(GanvPort* port)
-{
- GanvCanvas* canvas = ganv_item_get_canvas(GANV_ITEM(port));
- GanvPortPrivate* impl = port->impl;
- GanvText* label = GANV_NODE(port)->impl->label;
- const double port_w = ganv_box_get_width(&port->box);
- const double port_h = ganv_box_get_height(&port->box);
- double vlabel_w = 0.0;
- if (impl->value_label) {
- const double vlabel_h = impl->value_label->impl->coords.height;
- vlabel_w = impl->value_label->impl->coords.width;
- if (ganv_canvas_get_direction(canvas) == GANV_DIRECTION_RIGHT) {
- ganv_item_set(GANV_ITEM(impl->value_label),
- "x", PORT_LABEL_HPAD,
- "y", (port_h - vlabel_h) / 2.0 - PORT_LABEL_VPAD,
- NULL);
- } else {
- ganv_item_set(GANV_ITEM(impl->value_label),
- "x", (port_w - vlabel_w) / 2.0,
- "y", (port_h - vlabel_h) / 2.0 - PORT_LABEL_VPAD,
- NULL);
- }
- vlabel_w += PORT_LABEL_HPAD;
- }
- if (label) {
- const double label_h = label->impl->coords.height;
- if (ganv_canvas_get_direction(canvas) == GANV_DIRECTION_RIGHT) {
- ganv_item_set(GANV_ITEM(label),
- "x", vlabel_w + PORT_LABEL_HPAD,
- "y", (port_h - label_h) / 2.0 - PORT_LABEL_VPAD,
- NULL);
- }
- }
-}
-
-static void
-ganv_port_resize(GanvNode* self)
-{
- GanvPort* port = GANV_PORT(self);
- GanvNode* node = GANV_NODE(self);
- GanvText* label = node->impl->label;
- GanvText* vlabel = port->impl->value_label;
-
- double label_w = 0.0;
- double label_h = 0.0;
- double vlabel_w = 0.0;
- double vlabel_h = 0.0;
- if (label && (GANV_ITEM(label)->object.flags & GANV_ITEM_VISIBLE)) {
- g_object_get(label, "width", &label_w, "height", &label_h, NULL);
- }
- if (vlabel && (GANV_ITEM(vlabel)->object.flags & GANV_ITEM_VISIBLE)) {
- g_object_get(vlabel, "width", &vlabel_w, "height", &vlabel_h, NULL);
- }
-
- if (label || vlabel) {
- double labels_w = label_w + PORT_LABEL_HPAD * 2.0;
- if (vlabel_w != 0.0) {
- labels_w += vlabel_w + PORT_LABEL_HPAD;
- }
- ganv_box_set_width(&port->box, labels_w);
- ganv_box_set_height(&port->box,
- MAX(label_h, vlabel_h) + (PORT_LABEL_VPAD * 2.0));
-
- ganv_port_place_labels(port);
- }
-
- if (GANV_NODE_CLASS(parent_class)->resize) {
- GANV_NODE_CLASS(parent_class)->resize(self);
- }
-}
-
-static void
-ganv_port_redraw_text(GanvNode* node)
-{
- GanvPort* port = GANV_PORT(node);
- if (port->impl->value_label) {
- ganv_text_layout(port->impl->value_label);
- }
- if (GANV_NODE_CLASS(parent_class)->redraw_text) {
- (*GANV_NODE_CLASS(parent_class)->redraw_text)(node);
- }
- ganv_port_place_labels(port);
-}
-
-static void
-ganv_port_set_width(GanvBox* box,
- double width)
-{
- GanvPort* port = GANV_PORT(box);
- parent_class->set_width(box, width);
- if (port->impl->control) {
- ganv_port_update_control_slider(port, port->impl->control->value, TRUE);
- }
- ganv_port_place_labels(port);
-}
-
-static void
-ganv_port_set_height(GanvBox* box,
- double height)
-{
- GanvPort* port = GANV_PORT(box);
- parent_class->set_height(box, height);
- if (port->impl->control) {
- ganv_item_set(GANV_ITEM(port->impl->control->rect),
- "y1", box->impl->coords.border_width / 2.0,
- "y2", height - box->impl->coords.border_width / 2.0,
- NULL);
- }
- ganv_port_place_labels(port);
-}
-
-static gboolean
-ganv_port_event(GanvItem* item, GdkEvent* event)
-{
- GanvCanvas* canvas = ganv_item_get_canvas(item);
-
- return ganv_canvas_port_event(canvas, GANV_PORT(item), event);
-}
-
-static void
-ganv_port_class_init(GanvPortClass* klass)
-{
- GObjectClass* gobject_class = (GObjectClass*)klass;
- GtkObjectClass* object_class = (GtkObjectClass*)klass;
- GanvItemClass* item_class = (GanvItemClass*)klass;
- GanvNodeClass* node_class = (GanvNodeClass*)klass;
- GanvBoxClass* box_class = (GanvBoxClass*)klass;
-
- parent_class = GANV_BOX_CLASS(g_type_class_peek_parent(klass));
-
- gobject_class->set_property = ganv_port_set_property;
- gobject_class->get_property = ganv_port_get_property;
-
- g_object_class_install_property(
- gobject_class, PROP_IS_INPUT, g_param_spec_boolean(
- "is-input",
- _("Is input"),
- _("Whether this port is an input, rather than an output."),
- 0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_IS_CONTROLLABLE, g_param_spec_boolean(
- "is-controllable",
- _("Is controllable"),
- _("Whether this port can be controlled by the user."),
- 0,
- G_PARAM_READWRITE));
-
- port_signals[PORT_VALUE_CHANGED]
- = g_signal_new("value-changed",
- G_TYPE_FROM_CLASS(klass),
- G_SIGNAL_RUN_LAST,
- 0,
- NULL, NULL,
- NULL,
- G_TYPE_NONE, 1,
- G_TYPE_DOUBLE);
-
- object_class->destroy = ganv_port_destroy;
-
- item_class->update = ganv_port_update;
- item_class->event = ganv_port_event;
- item_class->draw = ganv_port_draw;
-
- node_class->tail_vector = ganv_port_tail_vector;
- node_class->head_vector = ganv_port_head_vector;
- node_class->resize = ganv_port_resize;
- node_class->redraw_text = ganv_port_redraw_text;
-
- box_class->set_width = ganv_port_set_width;
- box_class->set_height = ganv_port_set_height;
-}
-
-GanvPort*
-ganv_port_new(GanvModule* module,
- gboolean is_input,
- const char* first_prop_name, ...)
-{
- GanvPort* port = GANV_PORT(g_object_new(ganv_port_get_type(), NULL));
-
- port->impl->is_input = is_input;
-
- GanvItem* item = GANV_ITEM(port);
- va_list args;
- va_start(args, first_prop_name);
- ganv_item_construct(item,
- GANV_ITEM(module),
- first_prop_name, args);
- va_end(args);
-
- GanvBox* box = GANV_BOX(port);
- box->impl->coords.border_width = 1.0;
-
- GanvNode* node = GANV_NODE(port);
- node->impl->can_tail = !is_input;
- node->impl->can_head = is_input;
- node->impl->draggable = FALSE;
- node->impl->border_width = 2.0;
-
- GanvCanvas* canvas = ganv_item_get_canvas(GANV_ITEM(port));
- ganv_port_set_direction(port, ganv_canvas_get_direction(canvas));
-
- return port;
-}
-
-void
-ganv_port_set_direction(GanvPort* port,
- GanvDirection direction)
-{
- GanvNode* node = GANV_NODE(port);
- GanvBox* box = GANV_BOX(port);
- gboolean is_input = port->impl->is_input;
- switch (direction) {
- case GANV_DIRECTION_RIGHT:
- box->impl->radius_tl = (is_input ? 0.0 : 5.0);
- box->impl->radius_tr = (is_input ? 5.0 : 0.0);
- box->impl->radius_br = (is_input ? 5.0 : 0.0);
- box->impl->radius_bl = (is_input ? 0.0 : 5.0);
- break;
- case GANV_DIRECTION_DOWN:
- box->impl->radius_tl = (is_input ? 0.0 : 5.0);
- box->impl->radius_tr = (is_input ? 0.0 : 5.0);
- box->impl->radius_br = (is_input ? 5.0 : 0.0);
- box->impl->radius_bl = (is_input ? 5.0 : 0.0);
- break;
- }
-
- node->impl->must_resize = TRUE;
- ganv_item_request_update(GANV_ITEM(node));
-}
-
-void
-ganv_port_show_control(GanvPort* port)
-{
- if (port->impl->control) {
- return;
- }
-
- const guint color = 0xFFFFFF66;
- const double border_width = GANV_NODE(port)->impl->border_width;
-
- GanvPortControl* control = (GanvPortControl*)malloc(sizeof(GanvPortControl));
- port->impl->control = control;
-
- control->value = 0.0f;
- control->min = 0.0f;
- control->max = 1.0f;
- control->is_toggle = FALSE;
- control->is_integer = FALSE;
- control->rect = GANV_BOX(
- ganv_item_new(GANV_ITEM(port),
- ganv_box_get_type(),
- "x1", border_width / 2.0,
- "y1", border_width / 2.0,
- "x2", 0.0,
- "y2", ganv_box_get_height(&port->box) - border_width / 2.0,
- "fill-color", color,
- "border-color", color,
- "border-width", 0.0,
- "managed", TRUE,
- NULL));
- ganv_item_show(GANV_ITEM(control->rect));
-}
-
-void
-ganv_port_hide_control(GanvPort* port)
-{
- gtk_object_destroy(GTK_OBJECT(port->impl->control->rect));
- free(port->impl->control);
- port->impl->control = NULL;
-}
-
-void
-ganv_port_set_value_label(GanvPort* port,
- const char* str)
-{
- GanvPortPrivate* impl = port->impl;
-
- if (!str || str[0] == '\0') {
- if (impl->value_label) {
- gtk_object_destroy(GTK_OBJECT(impl->value_label));
- impl->value_label = NULL;
- }
- } else if (impl->value_label) {
- ganv_item_set(GANV_ITEM(impl->value_label),
- "text", str,
- NULL);
- } else {
- impl->value_label = GANV_TEXT(ganv_item_new(GANV_ITEM(port),
- ganv_text_get_type(),
- "text", str,
- "color", DIM_TEXT_COLOR,
- "managed", TRUE,
- NULL));
- }
-}
-
-static void
-ganv_port_update_control_slider(GanvPort* port, float value, gboolean force)
-{
- GanvPortPrivate* impl = port->impl;
- if (!impl->control) {
- return;
- }
-
- // Clamp to toggle or integer value if applicable
- if (impl->control->is_toggle) {
- if (value != 0.0f) {
- value = impl->control->max;
- } else {
- value = impl->control->min;
- }
- } else if (impl->control->is_integer) {
- value = lrintf(value);
- }
-
- // Clamp to range
- if (value < impl->control->min) {
- value = impl->control->min;
- }
- if (value > impl->control->max) {
- value = impl->control->max;
- }
-
- if (!force && value == impl->control->value) {
- return; // No change, do nothing
- }
-
- const double span = (ganv_box_get_width(&port->box) -
- GANV_NODE(port)->impl->border_width);
-
- const double w = (value - impl->control->min)
- / (impl->control->max - impl->control->min)
- * span;
-
- if (isnan(w)) {
- return; // Shouldn't happen, but ignore crazy values
- }
-
- // Redraw port
- impl->control->value = value;
- ganv_box_set_width(impl->control->rect, MAX(0.0, w));
- ganv_box_request_redraw(
- GANV_ITEM(port), &GANV_BOX(port)->impl->coords, FALSE);
-}
-
-void
-ganv_port_set_control_is_toggle(GanvPort* port,
- gboolean is_toggle)
-{
- if (port->impl->control) {
- port->impl->control->is_toggle = is_toggle;
- ganv_port_update_control_slider(port, port->impl->control->value, TRUE);
- }
-}
-
-void
-ganv_port_set_control_is_integer(GanvPort* port,
- gboolean is_integer)
-{
- if (port->impl->control) {
- port->impl->control->is_integer = is_integer;
- const float rounded = rintf(port->impl->control->value);
- ganv_port_update_control_slider(port, rounded, TRUE);
- }
-}
-
-void
-ganv_port_set_control_value(GanvPort* port,
- float value)
-{
- ganv_port_update_control_slider(port, value, FALSE);
-}
-
-void
-ganv_port_set_control_value_internal(GanvPort* port,
- float value)
-{
- // Update slider
- ganv_port_set_control_value(port, value);
-
- // Fire signal to notify user value has changed
- const double dvalue = port->impl->control->value;
- g_signal_emit(port, port_signals[PORT_VALUE_CHANGED], 0, dvalue, NULL);
-}
-
-void
-ganv_port_set_control_min(GanvPort* port,
- float min)
-{
- if (port->impl->control) {
- const gboolean force = port->impl->control->min != min;
- port->impl->control->min = min;
- if (port->impl->control->max < min) {
- port->impl->control->max = min;
- }
- ganv_port_update_control_slider(port, port->impl->control->value, force);
- }
-}
-
-void
-ganv_port_set_control_max(GanvPort* port,
- float max)
-{
- if (port->impl->control) {
- const gboolean force = port->impl->control->max != max;
- port->impl->control->max = max;
- if (port->impl->control->min > max) {
- port->impl->control->min = max;
- }
- ganv_port_update_control_slider(port, port->impl->control->value, force);
- }
-}
-
-double
-ganv_port_get_natural_width(const GanvPort* port)
-{
- GanvCanvas* const canvas = ganv_item_get_canvas(GANV_ITEM(port));
- GanvText* const label = port->box.node.impl->label;
- double w = 0.0;
- if (ganv_canvas_get_direction(canvas) == GANV_DIRECTION_DOWN) {
- w = ganv_module_get_empty_port_breadth(ganv_port_get_module(port));
- } else if (label && (GANV_ITEM(label)->object.flags & GANV_ITEM_VISIBLE)) {
- double label_w;
- g_object_get(port->box.node.impl->label, "width", &label_w, NULL);
- w = label_w + (PORT_LABEL_HPAD * 2.0);
- } else {
- w = ganv_module_get_empty_port_depth(ganv_port_get_module(port));
- }
- if (port->impl->value_label &&
- (GANV_ITEM(port->impl->value_label)->object.flags
- & GANV_ITEM_VISIBLE)) {
- double label_w;
- g_object_get(port->impl->value_label, "width", &label_w, NULL);
- w += label_w + PORT_LABEL_HPAD;
- }
- return w;
-}
-
-GanvModule*
-ganv_port_get_module(const GanvPort* port)
-{
- return GANV_MODULE(GANV_ITEM(port)->impl->parent);
-}
-
-float
-ganv_port_get_control_value(const GanvPort* port)
-{
- return port->impl->control ? port->impl->control->value : 0.0f;
-}
-
-float
-ganv_port_get_control_min(const GanvPort* port)
-{
- return port->impl->control ? port->impl->control->min : 0.0f;
-}
-
-float
-ganv_port_get_control_max(const GanvPort* port)
-{
- return port->impl->control ? port->impl->control->max : 0.0f;
-}
-
-gboolean
-ganv_port_is_input(const GanvPort* port)
-{
- return port->impl->is_input;
-}
-
-gboolean
-ganv_port_is_output(const GanvPort* port)
-{
- return !port->impl->is_input;
-}
diff --git a/src/text.c b/src/text.c
deleted file mode 100644
index bbac187..0000000
--- a/src/text.c
+++ /dev/null
@@ -1,381 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2015 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <math.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <gtk/gtkstyle.h>
-
-#include "ganv/canvas.h"
-#include "ganv/text.h"
-
-#include "./color.h"
-#include "./boilerplate.h"
-#include "./gettext.h"
-#include "./ganv-private.h"
-
-G_DEFINE_TYPE_WITH_CODE(GanvText, ganv_text, GANV_TYPE_ITEM,
- G_ADD_PRIVATE(GanvText))
-
-static GanvItemClass* parent_class;
-
-enum {
- PROP_0,
- PROP_TEXT,
- PROP_X,
- PROP_Y,
- PROP_WIDTH,
- PROP_HEIGHT,
- PROP_COLOR,
- PROP_FONT_SIZE
-};
-
-static void
-ganv_text_init(GanvText* text)
-{
- GanvTextPrivate* impl = ganv_text_get_instance_private(text);
-
- text->impl = impl;
-
- memset(&impl->coords, '\0', sizeof(GanvTextCoords));
- impl->coords.width = 1.0;
- impl->coords.height = 1.0;
- impl->old_coords = impl->coords;
-
- impl->layout = NULL;
- impl->text = NULL;
- impl->font_size = 0.0;
- impl->color = DEFAULT_TEXT_COLOR;
- impl->needs_layout = FALSE;
-}
-
-static void
-ganv_text_destroy(GtkObject* object)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_TEXT(object));
-
- GanvText* text = GANV_TEXT(object);
- GanvTextPrivate* impl = text->impl;
-
- if (impl->text) {
- g_free(impl->text);
- impl->text = NULL;
- }
-
- if (impl->layout) {
- g_object_unref(impl->layout);
- impl->layout = NULL;
- }
-
- if (GTK_OBJECT_CLASS(parent_class)->destroy) {
- (*GTK_OBJECT_CLASS(parent_class)->destroy)(object);
- }
-}
-
-void
-ganv_text_layout(GanvText* text)
-{
- GanvTextPrivate* impl = text->impl;
- GanvItem* item = GANV_ITEM(text);
- GanvCanvas* canvas = ganv_item_get_canvas(item);
- GtkWidget* widget = GTK_WIDGET(canvas);
- double points = impl->font_size;
- GtkStyle* style = gtk_rc_get_style(widget);
-
- if (impl->font_size == 0.0) {
- points = ganv_canvas_get_font_size(canvas);
- }
-
- if (impl->layout) {
- g_object_unref(impl->layout);
- }
- impl->layout = gtk_widget_create_pango_layout(widget, impl->text);
-
- PangoFontDescription* font = pango_font_description_copy(style->font_desc);
- PangoContext* ctx = pango_layout_get_context(impl->layout);
- cairo_font_options_t* opt = cairo_font_options_copy(
- pango_cairo_context_get_font_options(ctx));
-
- pango_font_description_set_size(font, points * (double)PANGO_SCALE);
- pango_layout_set_font_description(impl->layout, font);
- pango_cairo_context_set_font_options(ctx, opt);
- cairo_font_options_destroy(opt);
- pango_font_description_free(font);
-
- int width, height;
- pango_layout_get_pixel_size(impl->layout, &width, &height);
-
- impl->coords.width = width;
- impl->coords.height = height;
- impl->needs_layout = FALSE;
-
- ganv_item_request_update(GANV_ITEM(text));
-}
-
-static void
-ganv_text_set_property(GObject* object,
- guint prop_id,
- const GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_TEXT(object));
-
- GanvText* text = GANV_TEXT(object);
- GanvTextPrivate* impl = text->impl;
-
- switch (prop_id) {
- case PROP_X:
- impl->coords.x = g_value_get_double(value);
- break;
- case PROP_Y:
- impl->coords.y = g_value_get_double(value);
- break;
- case PROP_COLOR:
- impl->color = g_value_get_uint(value);
- break;
- case PROP_FONT_SIZE:
- impl->font_size = g_value_get_double(value);
- impl->needs_layout = TRUE;
- break;
- case PROP_TEXT:
- free(impl->text);
- impl->text = g_value_dup_string(value);
- impl->needs_layout = TRUE;
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- return;
- }
- if (impl->needs_layout) {
- if (GANV_IS_NODE(GANV_ITEM(text)->impl->parent)) {
- GANV_NODE(GANV_ITEM(text)->impl->parent)->impl->must_resize = TRUE;
- }
- }
- ganv_item_request_update(GANV_ITEM(text));
-}
-
-static void
-ganv_text_get_property(GObject* object,
- guint prop_id,
- GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_TEXT(object));
-
- GanvText* text = GANV_TEXT(object);
- GanvTextPrivate* impl = text->impl;
-
- if (impl->needs_layout && (prop_id == PROP_WIDTH
- || prop_id == PROP_HEIGHT)) {
- ganv_text_layout(text);
- }
-
- switch (prop_id) {
- GET_CASE(TEXT, string, impl->text);
- GET_CASE(X, double, impl->coords.x);
- GET_CASE(Y, double, impl->coords.y);
- GET_CASE(WIDTH, double, impl->coords.width);
- GET_CASE(HEIGHT, double, impl->coords.height);
- GET_CASE(COLOR, uint, impl->color);
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void
-ganv_text_bounds_item(GanvItem* item,
- double* x1, double* y1,
- double* x2, double* y2)
-{
- GanvText* text = GANV_TEXT(item);
- GanvTextPrivate* impl = text->impl;
-
- if (impl->needs_layout) {
- ganv_text_layout(text);
- }
-
- *x1 = impl->coords.x;
- *y1 = impl->coords.y;
- *x2 = impl->coords.x + impl->coords.width;
- *y2 = impl->coords.y + impl->coords.height;
-}
-
-static void
-ganv_text_bounds(GanvItem* item,
- double* x1, double* y1,
- double* x2, double* y2)
-{
- ganv_text_bounds_item(item, x1, y1, x2, y2);
-}
-
-static void
-ganv_text_update(GanvItem* item, int flags)
-{
- // Update world-relative bounding box
- ganv_text_bounds(item, &item->impl->x1, &item->impl->y1, &item->impl->x2, &item->impl->y2);
- ganv_item_i2w_pair(item, &item->impl->x1, &item->impl->y1, &item->impl->x2, &item->impl->y2);
-
- ganv_canvas_request_redraw_w(
- item->impl->canvas, item->impl->x1, item->impl->y1, item->impl->x2, item->impl->y2);
-
- parent_class->update(item, flags);
-}
-
-static double
-ganv_text_point(GanvItem* item, double x, double y, GanvItem** actual_item)
-{
- *actual_item = NULL;
-
- double x1, y1, x2, y2;
- ganv_text_bounds_item(item, &x1, &y1, &x2, &y2);
- if ((x >= x1) && (y >= y1) && (x <= x2) && (y <= y2)) {
- return 0.0;
- }
-
- // Point is outside the box
- double dx, dy;
-
- // Find horizontal distance to nearest edge
- if (x < x1) {
- dx = x1 - x;
- } else if (x > x2) {
- dx = x - x2;
- } else {
- dx = 0.0;
- }
-
- // Find vertical distance to nearest edge
- if (y < y1) {
- dy = y1 - y;
- } else if (y > y2) {
- dy = y - y2;
- } else {
- dy = 0.0;
- }
-
- return sqrt((dx * dx) + (dy * dy));
-}
-
-static void
-ganv_text_draw(GanvItem* item,
- cairo_t* cr, double cx, double cy, double cw, double ch)
-{
- GanvText* text = GANV_TEXT(item);
- GanvTextPrivate* impl = text->impl;
-
- double wx = impl->coords.x;
- double wy = impl->coords.y;
- ganv_item_i2w(item, &wx, &wy);
-
- if (impl->needs_layout) {
- ganv_text_layout(text);
- }
-
- double r, g, b, a;
- color_to_rgba(impl->color, &r, &g, &b, &a);
-
- cairo_set_source_rgba(cr, r, g, b, a);
- cairo_move_to(cr, wx, wy);
- pango_cairo_show_layout(cr, impl->layout);
-}
-
-static void
-ganv_text_class_init(GanvTextClass* klass)
-{
- GObjectClass* gobject_class = (GObjectClass*)klass;
- GtkObjectClass* object_class = (GtkObjectClass*)klass;
- GanvItemClass* item_class = (GanvItemClass*)klass;
-
- parent_class = GANV_ITEM_CLASS(g_type_class_peek_parent(klass));
-
- gobject_class->set_property = ganv_text_set_property;
- gobject_class->get_property = ganv_text_get_property;
-
- g_object_class_install_property(
- gobject_class, PROP_TEXT, g_param_spec_string(
- "text",
- _("Text"),
- _("The string to display."),
- NULL,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_X, g_param_spec_double(
- "x",
- _("x"),
- _("Top left x coordinate."),
- -G_MAXDOUBLE, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_Y, g_param_spec_double(
- "y",
- _("y"),
- _("Top left y coordinate."),
- -G_MAXDOUBLE, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_WIDTH, g_param_spec_double(
- "width",
- _("Width"),
- _("The current width of the text."),
- -G_MAXDOUBLE, G_MAXDOUBLE,
- 1.0,
- G_PARAM_READABLE));
-
- g_object_class_install_property(
- gobject_class, PROP_HEIGHT, g_param_spec_double(
- "height",
- _("Height"),
- _("The current height of the text."),
- -G_MAXDOUBLE, G_MAXDOUBLE,
- 1.0,
- G_PARAM_READABLE));
-
- g_object_class_install_property(
- gobject_class, PROP_COLOR, g_param_spec_uint(
- "color",
- _("Color"),
- _("The color of the text."),
- 0, G_MAXUINT,
- DEFAULT_TEXT_COLOR,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_FONT_SIZE, g_param_spec_double(
- "font-size",
- _("Font size"),
- _("The font size in points."),
- -G_MAXDOUBLE, G_MAXDOUBLE,
- 0.0,
- G_PARAM_READWRITE));
-
-
- object_class->destroy = ganv_text_destroy;
-
- item_class->update = ganv_text_update;
- item_class->bounds = ganv_text_bounds;
- item_class->point = ganv_text_point;
- item_class->draw = ganv_text_draw;
-}
diff --git a/src/widget.c b/src/widget.c
deleted file mode 100644
index b08715b..0000000
--- a/src/widget.c
+++ /dev/null
@@ -1,503 +0,0 @@
-/* This file is part of Ganv.
- * Copyright 2007-2016 David Robillard <http://drobilla.net>
- *
- * Ganv is free software: you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 3 of the License, or any later version.
- *
- * Ganv is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with Ganv. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* Based on GnomeCanvasWidget, by Federico Mena <federico@nuclecu.unam.mx>
- * Copyright 1997-2000 Free Software Foundation
- */
-
-#include <math.h>
-
-#include <gtk/gtksignal.h>
-
-#include "ganv/canvas.h"
-#include "ganv/widget.h"
-
-#include "./gettext.h"
-#include "./ganv-private.h"
-
-G_DEFINE_TYPE_WITH_CODE(GanvWidget, ganv_widget, GANV_TYPE_ITEM,
- G_ADD_PRIVATE(GanvWidget))
-
-static GanvItemClass* parent_class;
-
-enum {
- PROP_0,
- PROP_WIDGET,
- PROP_X,
- PROP_Y,
- PROP_WIDTH,
- PROP_HEIGHT,
- PROP_ANCHOR,
- PROP_SIZE_PIXELS
-};
-
-static void
-ganv_widget_init(GanvWidget* witem)
-{
- GanvWidgetPrivate* impl = ganv_widget_get_instance_private(witem);
-
- witem->impl = impl;
- witem->impl->x = 0.0;
- witem->impl->y = 0.0;
- witem->impl->width = 0.0;
- witem->impl->height = 0.0;
- witem->impl->anchor = GTK_ANCHOR_NW;
- witem->impl->size_pixels = FALSE;
-}
-
-static void
-ganv_widget_destroy(GtkObject* object)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_WIDGET(object));
-
- GanvWidget* witem = GANV_WIDGET(object);
-
- if (witem->impl->widget && !witem->impl->in_destroy) {
- g_signal_handler_disconnect(witem->impl->widget, witem->impl->destroy_id);
- gtk_widget_destroy(witem->impl->widget);
- witem->impl->widget = NULL;
- }
-
- if (GTK_OBJECT_CLASS(parent_class)->destroy) {
- (*GTK_OBJECT_CLASS(parent_class)->destroy)(object);
- }
-}
-
-static void
-recalc_bounds(GanvWidget* witem)
-{
- GanvItem* item = GANV_ITEM(witem);
-
- /* Get world coordinates */
-
- double wx = witem->impl->x;
- double wy = witem->impl->y;
- ganv_item_i2w(item, &wx, &wy);
-
- /* Get canvas pixel coordinates */
-
- ganv_canvas_w2c(item->impl->canvas, wx, wy, &witem->impl->cx, &witem->impl->cy);
-
- /* Anchor widget item */
-
- switch (witem->impl->anchor) {
- case GTK_ANCHOR_N:
- case GTK_ANCHOR_CENTER:
- case GTK_ANCHOR_S:
- witem->impl->cx -= witem->impl->cwidth / 2;
- break;
-
- case GTK_ANCHOR_NE:
- case GTK_ANCHOR_E:
- case GTK_ANCHOR_SE:
- witem->impl->cx -= witem->impl->cwidth;
- break;
-
- default:
- break;
- }
-
- switch (witem->impl->anchor) {
- case GTK_ANCHOR_W:
- case GTK_ANCHOR_CENTER:
- case GTK_ANCHOR_E:
- witem->impl->cy -= witem->impl->cheight / 2;
- break;
-
- case GTK_ANCHOR_SW:
- case GTK_ANCHOR_S:
- case GTK_ANCHOR_SE:
- witem->impl->cy -= witem->impl->cheight;
- break;
-
- default:
- break;
- }
-
- /* Bounds */
-
- item->impl->x1 = witem->impl->cx;
- item->impl->y1 = witem->impl->cy;
- item->impl->x2 = witem->impl->cx + witem->impl->cwidth;
- item->impl->y2 = witem->impl->cy + witem->impl->cheight;
-
- int zoom_xofs, zoom_yofs;
- ganv_canvas_get_zoom_offsets(item->impl->canvas, &zoom_xofs, &zoom_yofs);
- if (witem->impl->widget) {
- gtk_layout_move(GTK_LAYOUT(item->impl->canvas), witem->impl->widget,
- witem->impl->cx + zoom_xofs,
- witem->impl->cy + zoom_yofs);
- }
-}
-
-static void
-do_destroy(GtkObject* object, gpointer data)
-{
- GanvWidget* witem = GANV_WIDGET(data);
-
- witem->impl->in_destroy = TRUE;
- gtk_object_destroy(GTK_OBJECT(data));
-}
-
-static void
-ganv_widget_set_property(GObject* object,
- guint param_id,
- const GValue* value,
- GParamSpec* pspec)
-{
- GanvItem* item = GANV_ITEM(object);
- GanvWidget* witem = GANV_WIDGET(object);
- int update = FALSE;
- int calc_bounds = FALSE;
- GObject* obj;
-
- switch (param_id) {
- case PROP_WIDGET:
- if (witem->impl->widget) {
- g_signal_handler_disconnect(witem->impl->widget, witem->impl->destroy_id);
- gtk_container_remove(GTK_CONTAINER(item->impl->canvas), witem->impl->widget);
- }
-
- obj = (GObject*)g_value_get_object(value);
- if (obj) {
- witem->impl->widget = GTK_WIDGET(obj);
- witem->impl->destroy_id = g_signal_connect(obj, "destroy",
- G_CALLBACK(do_destroy),
- witem);
- int zoom_xofs, zoom_yofs;
- ganv_canvas_get_zoom_offsets(item->impl->canvas, &zoom_xofs, &zoom_yofs);
-
- gtk_layout_put(GTK_LAYOUT(item->impl->canvas), witem->impl->widget,
- witem->impl->cx + zoom_xofs,
- witem->impl->cy + zoom_yofs);
- }
-
- update = TRUE;
- break;
-
- case PROP_X:
- if (witem->impl->x != g_value_get_double(value)) {
- witem->impl->x = g_value_get_double(value);
- calc_bounds = TRUE;
- }
- break;
-
- case PROP_Y:
- if (witem->impl->y != g_value_get_double(value)) {
- witem->impl->y = g_value_get_double(value);
- calc_bounds = TRUE;
- }
- break;
-
- case PROP_WIDTH:
- if (witem->impl->width != fabs(g_value_get_double(value))) {
- witem->impl->width = fabs(g_value_get_double(value));
- update = TRUE;
- }
- break;
-
- case PROP_HEIGHT:
- if (witem->impl->height != fabs(g_value_get_double(value))) {
- witem->impl->height = fabs(g_value_get_double(value));
- update = TRUE;
- }
- break;
-
- case PROP_ANCHOR:
- if (witem->impl->anchor != (GtkAnchorType)g_value_get_enum(value)) {
- witem->impl->anchor = (GtkAnchorType)g_value_get_enum(value);
- update = TRUE;
- }
- break;
-
- case PROP_SIZE_PIXELS:
- if (witem->impl->size_pixels != g_value_get_boolean(value)) {
- witem->impl->size_pixels = g_value_get_boolean(value);
- update = TRUE;
- }
- break;
-
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec);
- break;
- }
-
- if (update) {
- (*GANV_ITEM_GET_CLASS(item)->update)(item, 0);
- }
-
- if (calc_bounds) {
- recalc_bounds(witem);
- }
-}
-
-static void
-ganv_widget_get_property(GObject* object,
- guint param_id,
- GValue* value,
- GParamSpec* pspec)
-{
- g_return_if_fail(object != NULL);
- g_return_if_fail(GANV_IS_WIDGET(object));
-
- GanvWidget* witem = GANV_WIDGET(object);
-
- switch (param_id) {
- case PROP_WIDGET:
- g_value_set_object(value, (GObject*)witem->impl->widget);
- break;
-
- case PROP_X:
- g_value_set_double(value, witem->impl->x);
- break;
-
- case PROP_Y:
- g_value_set_double(value, witem->impl->y);
- break;
-
- case PROP_WIDTH:
- g_value_set_double(value, witem->impl->width);
- break;
-
- case PROP_HEIGHT:
- g_value_set_double(value, witem->impl->height);
- break;
-
- case PROP_ANCHOR:
- g_value_set_enum(value, witem->impl->anchor);
- break;
-
- case PROP_SIZE_PIXELS:
- g_value_set_boolean(value, witem->impl->size_pixels);
- break;
-
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec);
- break;
- }
-}
-
-static void
-ganv_widget_update(GanvItem* item, int flags)
-{
- GanvWidget* witem = GANV_WIDGET(item);
-
- if (parent_class->update) {
- (*parent_class->update)(item, flags);
- }
-
- if (witem->impl->widget) {
- const double pixels_per_unit = ganv_canvas_get_zoom(item->impl->canvas);
- if (witem->impl->size_pixels) {
- witem->impl->cwidth = (int)(witem->impl->width + 0.5);
- witem->impl->cheight = (int)(witem->impl->height + 0.5);
- } else {
- witem->impl->cwidth = (int)(witem->impl->width * pixels_per_unit + 0.5);
- witem->impl->cheight = (int)(witem->impl->height * pixels_per_unit + 0.5);
- }
-
- gtk_widget_set_size_request(witem->impl->widget, witem->impl->cwidth, witem->impl->cheight);
- } else {
- witem->impl->cwidth = 0.0;
- witem->impl->cheight = 0.0;
- }
-
- recalc_bounds(witem);
-}
-
-static void
-ganv_widget_draw(GanvItem* item,
- cairo_t* cr, double cx, double cy, double cw, double ch)
-{
- GanvWidget* witem = GANV_WIDGET(item);
-
- if (witem->impl->widget) {
- gtk_widget_queue_draw(witem->impl->widget);
- }
-}
-
-static double
-ganv_widget_point(GanvItem* item, double x, double y, GanvItem** actual_item)
-{
- GanvWidget* witem = GANV_WIDGET(item);
-
- *actual_item = item;
-
- double x1, y1;
- ganv_canvas_c2w(item->impl->canvas, witem->impl->cx, witem->impl->cy, &x1, &y1);
-
- const double pixels_per_unit = ganv_canvas_get_zoom(item->impl->canvas);
-
- double x2 = x1 + (witem->impl->cwidth - 1) / pixels_per_unit;
- double y2 = y1 + (witem->impl->cheight - 1) / pixels_per_unit;
-
- /* Is point inside widget bounds? */
-
- if ((x >= x1) && (y >= y1) && (x <= x2) && (y <= y2)) {
- return 0.0;
- }
-
- /* Point is outside widget bounds */
-
- double dx;
- if (x < x1) {
- dx = x1 - x;
- } else if (x > x2) {
- dx = x - x2;
- } else {
- dx = 0.0;
- }
-
- double dy;
- if (y < y1) {
- dy = y1 - y;
- } else if (y > y2) {
- dy = y - y2;
- } else {
- dy = 0.0;
- }
-
- return sqrt(dx * dx + dy * dy);
-}
-
-static void
-ganv_widget_bounds(GanvItem* item, double* x1, double* y1, double* x2, double* y2)
-{
- GanvWidget* witem = GANV_WIDGET(item);
-
- *x1 = witem->impl->x;
- *y1 = witem->impl->y;
-
- switch (witem->impl->anchor) {
- case GTK_ANCHOR_NW:
- case GTK_ANCHOR_W:
- case GTK_ANCHOR_SW:
- break;
-
- case GTK_ANCHOR_N:
- case GTK_ANCHOR_CENTER:
- case GTK_ANCHOR_S:
- *x1 -= witem->impl->width / 2.0;
- break;
-
- case GTK_ANCHOR_NE:
- case GTK_ANCHOR_E:
- case GTK_ANCHOR_SE:
- *x1 -= witem->impl->width;
- break;
-
- default:
- break;
- }
-
- switch (witem->impl->anchor) {
- case GTK_ANCHOR_NW:
- case GTK_ANCHOR_N:
- case GTK_ANCHOR_NE:
- break;
-
- case GTK_ANCHOR_W:
- case GTK_ANCHOR_CENTER:
- case GTK_ANCHOR_E:
- *y1 -= witem->impl->height / 2.0;
- break;
-
- case GTK_ANCHOR_SW:
- case GTK_ANCHOR_S:
- case GTK_ANCHOR_SE:
- *y1 -= witem->impl->height;
- break;
-
- default:
- break;
- }
-
- *x2 = *x1 + witem->impl->width;
- *y2 = *y1 + witem->impl->height;
-}
-
-static void
-ganv_widget_class_init(GanvWidgetClass* klass)
-{
- GObjectClass* gobject_class = (GObjectClass*)klass;
- GtkObjectClass* object_class = (GtkObjectClass*)klass;
- GanvItemClass* item_class = (GanvItemClass*)klass;
-
- parent_class = (GanvItemClass*)g_type_class_peek_parent(klass);
-
- gobject_class->set_property = ganv_widget_set_property;
- gobject_class->get_property = ganv_widget_get_property;
-
- g_object_class_install_property(
- gobject_class, PROP_WIDGET, g_param_spec_object(
- "widget", _("Widget"),
- _("The widget to embed in this item."),
- GTK_TYPE_WIDGET,
- (GParamFlags)(G_PARAM_READABLE | G_PARAM_WRITABLE)));
-
- g_object_class_install_property(
- gobject_class, PROP_X, g_param_spec_double(
- "x", _("x"),
- _("The x coordinate of the anchor"),
- -G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_Y, g_param_spec_double(
- "y", _("y"),
- _("The x coordinate of the anchor"),
- -G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_WIDTH, g_param_spec_double(
- "width", _("Width"),
- _("The width of the widget."),
- -G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_HEIGHT, g_param_spec_double(
- "height", _("Height"),
- _("The height of the widget."),
- -G_MAXDOUBLE, G_MAXDOUBLE, 0.0,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_ANCHOR, g_param_spec_enum(
- "anchor", _("Anchor"),
- _("The anchor point of the widget."),
- GTK_TYPE_ANCHOR_TYPE,
- GTK_ANCHOR_NW,
- G_PARAM_READWRITE));
-
- g_object_class_install_property(
- gobject_class, PROP_SIZE_PIXELS, g_param_spec_boolean(
- "size-pixels", ("Size is in pixels"),
- _("Specifies whether the widget size is specified in pixels or"
- " canvas units. If it is in pixels, then the widget will not"
- " be scaled when the canvas zoom factor changes. Otherwise,"
- " it will be scaled."),
- FALSE,
- G_PARAM_READWRITE));
-
- object_class->destroy = ganv_widget_destroy;
-
- item_class->update = ganv_widget_update;
- item_class->point = ganv_widget_point;
- item_class->bounds = ganv_widget_bounds;
- item_class->draw = ganv_widget_draw;
-}
generated by cgit v1.2.1 (git 2.18.0) at 2024-04-28 08:48:00 +0000