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Diffstat (limited to 'ganv/node.h')
| -rw-r--r-- | ganv/node.h | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/ganv/node.h b/ganv/node.h new file mode 100644 index 0000000..b0dd82f --- /dev/null +++ b/ganv/node.h @@ -0,0 +1,179 @@ +/* This file is part of Ganv. + * Copyright 2007-2014 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_NODE_H +#define GANV_NODE_H + +#include "ganv/item.h" +#include "ganv/types.h" +#include "ganv/text.h" + +G_BEGIN_DECLS + +#define GANV_TYPE_NODE (ganv_node_get_type()) +#define GANV_NODE(obj) (GTK_CHECK_CAST((obj), GANV_TYPE_NODE, GanvNode)) +#define GANV_NODE_CLASS(klass) (GTK_CHECK_CLASS_CAST((klass), GANV_TYPE_NODE, GanvNodeClass)) +#define GANV_IS_NODE(obj) (GTK_CHECK_TYPE((obj), GANV_TYPE_NODE)) +#define GANV_IS_NODE_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), GANV_TYPE_NODE)) +#define GANV_NODE_GET_CLASS(obj) (GTK_CHECK_GET_CLASS((obj), GANV_TYPE_NODE, GanvNodeClass)) + +typedef struct _GanvNodeClass GanvNodeClass; +typedef struct _GanvNodePrivate GanvNodePrivate; + +struct _GanvNode { + GanvItem item; + GanvNodePrivate* impl; +}; + +struct _GanvNodeClass { + GanvItemClass parent_class; + + void (*tick)(GanvNode* self, + double seconds); + + void (*move)(GanvNode* node, + double dx, + double dy); + + void (*move_to)(GanvNode* node, + double x, + double y); + + void (*resize)(GanvNode* node); + + void (*redraw_text)(GanvNode* node); + + void (*disconnect)(GanvNode* node); + + gboolean (*is_within)(const GanvNode* self, + double x1, + double y1, + double x2, + double y2); + + void (*tail_vector)(const GanvNode* self, + const GanvNode* head, + double* x, + double* y, + double* dx, + double* dy); + + void (*head_vector)(const GanvNode* self, + const GanvNode* tail, + double* x, + double* y, + double* dx, + double* dy); + + /* Reserved for future expansion */ + gpointer spare_vmethods[4]; +}; + +GType ganv_node_get_type(void) G_GNUC_CONST; + +/** + * ganv_node_can_tail: + * + * Return value: True iff node can act as the tail of an edge. + */ +gboolean +ganv_node_can_tail(const GanvNode* node); + +/** + * ganv_node_can_head: + * + * Return value: True iff node can act as the head of an edge. + */ +gboolean +ganv_node_can_head(const GanvNode* node); + +/** + * ganv_node_set_is_source: + * + * Flag a node as a source. This information is used to influence layout. + */ +void +ganv_node_set_is_source(const GanvNode* node, gboolean is_source); + +/** + * ganv_node_is_within: + * + * Return value: True iff node is entirely within the given rectangle. + */ +gboolean +ganv_node_is_within(const GanvNode* node, + double x1, + double y1, + double x2, + double y2); + +const char* ganv_node_get_label(const GanvNode* node); + +double ganv_node_get_border_width(const GanvNode* node); + +void ganv_node_set_border_width(const GanvNode* node, double border_width); + +double ganv_node_get_dash_length(const GanvNode* node); + +void ganv_node_set_dash_length(const GanvNode* node, double dash_length); + +double ganv_node_get_dash_offset(const GanvNode* node); + +void ganv_node_set_dash_offset(const GanvNode* node, double dash_offset); + +guint ganv_node_get_fill_color(const GanvNode* node); + +void ganv_node_set_fill_color(const GanvNode* node, guint fill_color); + +guint ganv_node_get_border_color(const GanvNode* node); + +void ganv_node_set_border_color(const GanvNode* node, guint border_color); + +/** + * ganv_node_get_partner: + * + * Return value: (transfer none): The partner of @node. + */ +GanvNode* +ganv_node_get_partner(const GanvNode* node); + +void ganv_node_set_label(GanvNode* node, const char* str); +void ganv_node_set_show_label(GanvNode* node, gboolean show); + +void +ganv_node_move(GanvNode* node, + double dx, + double dy); + +void +ganv_node_move_to(GanvNode* node, + double x, + double y); + +void +ganv_node_resize(GanvNode* node); + +void +ganv_node_redraw_text(GanvNode* node); + +void +ganv_node_disconnect(GanvNode* node); + +gboolean +ganv_node_is_selected(GanvNode* node); + +G_END_DECLS + +#endif /* GANV_NODE_H */ |