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Diffstat (limited to 'src/ganv-private.h')
| -rw-r--r-- | src/ganv-private.h | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/src/ganv-private.h b/src/ganv-private.h new file mode 100644 index 0000000..39824ba --- /dev/null +++ b/src/ganv-private.h @@ -0,0 +1,403 @@ +/* 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 _GanvBoxImpl { + 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 _GanvCircleImpl { + 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 _GanvEdgeImpl +{ + 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 _GanvModuleImpl +{ + 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 _GanvNodeImpl { + 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 _GanvWidgetImpl { + 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 _GanvGroupImpl { + GList* item_list; + GList* item_list_end; +}; + +/* Item */ +struct _GanvItemImpl { + /* 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 _GanvPortImpl { + GanvPortControl* control; + GanvText* value_label; + gboolean is_input; + gboolean is_controllable; +}; + +/* Text */ + +typedef struct +{ + double x; + double y; + double width; + double height; +} GanvTextCoords; + +struct _GanvTextImpl +{ + 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 */ |