/usr/include/ganv-1/ganv/canvas.h is in libganv-dev 0~svn5021~dfsg0-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 | /* This file is part of Ganv.
* Copyright 2007-2012 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_CANVAS_H
#define GANV_CANVAS_H
#include "ganv/canvas-base.h"
#include "ganv/types.h"
#include "ganv/edge.h"
G_BEGIN_DECLS
#define GANV_TYPE_CANVAS (ganv_canvas_get_type())
#define GANV_CANVAS(obj) (GTK_CHECK_CAST((obj), GANV_TYPE_CANVAS, GanvCanvas))
#define GANV_CANVAS_CLASS(klass) (GTK_CHECK_CLASS_CAST((klass), GANV_TYPE_CANVAS, GanvCanvasClass))
#define GANV_IS_CANVAS(obj) (GTK_CHECK_TYPE((obj), GANV_TYPE_CANVAS))
#define GANV_IS_CANVAS_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), GANV_TYPE_CANVAS))
#define GANV_CANVAS_GET_CLASS(obj) (GTK_CHECK_GET_CLASS((obj), GANV_TYPE_CANVAS, GanvCanvasClass))
struct GanvCanvasImpl;
typedef struct _GanvCanvasClass GanvCanvasClass;
/**
* GanvDirection:
* @GANV_DIRECTION_DOWN: Signal flows from top to bottom.
* @GANV_DIRECTION_RIGHT: Signal flows from left to right.
*
* Specifies the direction of signal flow on the canvas, which affects the
* appearance of modules and how the canvas is auto-arranged.
*/
typedef enum {
GANV_DIRECTION_DOWN,
GANV_DIRECTION_RIGHT
} GanvDirection;
struct _GanvCanvas {
GanvCanvasBase canvas;
struct GanvCanvasImpl* impl;
GanvDirection direction;
double width;
double height;
gboolean locked;
};
struct _GanvCanvasClass {
GanvCanvasBaseClass parent_class;
};
GType ganv_canvas_get_type(void);
GanvCanvas* ganv_canvas_new(double width, double height);
/**
* ganv_canvas_resize:
* Resize the canvas to the given dimensions.
*/
void
ganv_canvas_resize(GanvCanvas* canvas, double width, double height);
/**
* ganv_canvas_get_root:
* Return value: (transfer none): The root group of @canvas.
*/
GanvItem*
ganv_canvas_get_root(const GanvCanvas* canvas);
void
ganv_canvas_add_node(GanvCanvas* canvas,
GanvNode* node);
void
ganv_canvas_remove_node(GanvCanvas* canvas,
GanvNode* node);
/**
* ganv_canvas_get_edge:
* Get the edge between two nodes, or NULL if none exists.
* Return value: (transfer none): The root group of @canvas.
*/
GanvEdge*
ganv_canvas_get_edge(GanvCanvas* canvas,
GanvNode* tail,
GanvNode* head);
void
ganv_canvas_disconnect_edge(GanvCanvas* canvas,
GanvEdge* edge);
void
ganv_canvas_remove_edge_between(GanvCanvas* canvas,
GanvNode* tail,
GanvNode* head);
/** Get the default font size in points. */
double
ganv_canvas_get_default_font_size(const GanvCanvas* canvas);
void
ganv_canvas_set_direction(GanvCanvas* canvas, GanvDirection dir);
void
ganv_canvas_clear_selection(GanvCanvas* canvas);
void
ganv_canvas_arrange(GanvCanvas* canvas);
/** Write a Graphviz DOT description of the canvas to @c filename. */
void
ganv_canvas_export_dot(GanvCanvas* canvas, const char* filename);
/**
* A node function that takes a user data argument (for callbacks).
*
* Note that in the Gtk world it is considered safe to cast a function to a
* function with more arguments and call the resulting pointer, so functions
* like ganv_edge_select can safely be used where a GanvEdgeFunc is expected.
*/
typedef void (*GanvEdgeFunc)(GanvEdge* edge, void* data);
/**
* A node function that takes a user data argument (for callbacks).
*
* Note that in the Gtk world it is considered safe to cast a function to a
* function with more arguments and call the resulting pointer, so functions
* like ganv_node_select can safely be used where a GanvNodeFunc is expected.
*/
typedef void (*GanvNodeFunc)(GanvNode* node, void* data);
/**
* ganv_canvas_for_each_node:
* @canvas: The canvas.
* @f: (scope call): A function to call on every node on @canvas.
* @data: Data to pass to @f.
*/
void
ganv_canvas_for_each_node(GanvCanvas* canvas,
GanvNodeFunc f,
void* data);
/**
* ganv_canvas_for_each_selected_node:
* @canvas: The canvas.
* @f: (scope call): A function to call on every selected node on @canvas.
* @data: Data to pass to @f.
*/
void
ganv_canvas_for_each_selected_node(GanvCanvas* canvas,
GanvNodeFunc f,
void* data);
/**
* ganv_canvas_for_each_edge:
* @canvas: The canvas.
* @f: (scope call): A function to call on every edge on @canvas.
* @data: Data to pass to @f.
*/
void
ganv_canvas_for_each_edge(GanvCanvas* canvas,
GanvEdgeFunc f,
void* data);
/**
* ganv_canvas_for_each_edge_from:
* @canvas: The canvas.
* @tail: The tail to enumerate every edge for.
* @f: (scope call): A function to call on every edge leaving @tail.
*/
void
ganv_canvas_for_each_edge_from(GanvCanvas* canvas,
const GanvNode* tail,
GanvEdgeFunc f,
void* data);
/**
* ganv_canvas_for_each_edge_to:
* @canvas: The canvas.
* @head: The head to enumerate every edge for.
* @f: (scope call): A function to call on every edge entering @head.
*/
void
ganv_canvas_for_each_edge_to(GanvCanvas* canvas,
const GanvNode* head,
GanvEdgeFunc f,
void* data);
/**
* ganv_canvas_for_each_edge_on:
* @canvas: The canvas.
* @node: The node to enumerate every edge for.
* @f: (scope call): A function to call on every edge attached to @node.
*/
void
ganv_canvas_for_each_edge_on(GanvCanvas* canvas,
const GanvNode* node,
GanvEdgeFunc f,
void* data);
/**
* ganv_canvas_clear:
* Remove all items from the canvas.
*/
void
ganv_canvas_clear(GanvCanvas* canvas);
/**
* ganv_canvas_select_all:
* Select all items on the canvas.
*/
void
ganv_canvas_select_all(GanvCanvas* canvas);
/**
* ganv_canvas_get_zoom:
* Return the current zoom factor (pixels per unit).
*/
double
ganv_canvas_get_zoom(GanvCanvas* canvas);
/**
* ganv_canvas_set_zoom:
* Set the current zoom factor (pixels per unit).
*/
void
ganv_canvas_set_zoom(GanvCanvas* canvas, double zoom);
/**
* ganv_canvas_get_font_size:
* Get the current font size in points.
*/
double
ganv_canvas_get_font_size(const GanvCanvas* canvas);
/**
* ganv_canvas_set_font_size:
* Set the current font size in points.
*/
void
ganv_canvas_set_font_size(GanvCanvas* canvas, double points);
/**
* ganv_canvas_set_scale:
* Set the zoom and font size for the canvas.
*/
void
ganv_canvas_set_scale(GanvCanvas* canvas, double zoom, double points);
/**
* ganv_canvas_zoom_full:
* Zoom so all canvas contents are visible.
*/
void
ganv_canvas_zoom_full(GanvCanvas* canvas);
/**
* ganv_canvas_get_move_cursor:
* Return the cursor to use while dragging canvas objects.
*/
GdkCursor*
ganv_canvas_get_move_cursor(const GanvCanvas* canvas);
/**
* ganv_canvas_move_contents_to:
* Shift all canvas contents so the top-left object is at (x, y).
*/
void
ganv_canvas_move_contents_to(GanvCanvas* canvas, double x, double y);
G_END_DECLS
#endif /* GANV_CANVAS_H */
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