4 * Copyright (C) 2008 - 2012 The Geeqie Team
8 * This software is released under the GNU General Public License (GNU GPL).
9 * Please read the included file COPYING for more information.
10 * This software comes with no warranty of any kind, use at your own risk!
13 #ifndef PIXBUF_RENDERER_H
14 #define PIXBUF_RENDERER_H
16 #define TYPE_PIXBUF_RENDERER (pixbuf_renderer_get_type())
17 #define PIXBUF_RENDERER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), TYPE_PIXBUF_RENDERER, PixbufRenderer))
18 #define PIXBUF_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), TYPE_PIXBUF_RENDERER, PixbufRendererClass))
19 #define IS_PIXBUF_RENDERER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), TYPE_PIXBUF_RENDERER))
20 #define IS_PIXBUF_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), TYPE_PIXBUF_RENDERER))
21 #define PIXBUF_RENDERER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), TYPE_PIXBUF_RENDERER, PixbufRendererClass))
23 /* alpha channel checkerboard background (same as gimp) */
24 #define PR_ALPHA_CHECK1 0x00999999
25 #define PR_ALPHA_CHECK2 0x00666666
26 #define PR_ALPHA_CHECK_SIZE 16
27 /* when scaling image to below this size, use nearest pixel for scaling
28 * (below about 4, the other scale types become slow generating their conversion tables)
30 #define PR_MIN_SCALE_SIZE 8
32 /* default size of tile cache (mb) */
33 #define PR_CACHE_SIZE_DEFAULT 8
35 /* round A up/down to integer count of B */
36 #define ROUND_UP(A,B) ((gint)(((A)+(B)-1)/(B))*(B))
37 #define ROUND_DOWN(A,B) ((gint)(((A))/(B))*(B))
40 typedef struct _RendererFuncs RendererFuncs;
42 typedef struct _PixbufRenderer PixbufRenderer;
43 typedef struct _PixbufRendererClass PixbufRendererClass;
46 typedef gint (* PixbufRendererTileRequestFunc)(PixbufRenderer *pr, gint x, gint y,
47 gint width, gint height, GdkPixbuf *pixbuf, gpointer user_data);
48 typedef void (* PixbufRendererTileDisposeFunc)(PixbufRenderer *pr, gint x, gint y,
49 gint width, gint height, GdkPixbuf *pixbuf, gpointer user_data);
51 typedef void (* PixbufRendererPostProcessFunc)(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y,
52 gint width, gint height, gpointer user_data);
55 PR_SCROLL_RESET_TOPLEFT = 0,
56 PR_SCROLL_RESET_CENTER,
57 PR_SCROLL_RESET_NOCHANGE,
58 PR_SCROLL_RESET_COUNT,
59 } PixbufRendererScrollResetType;
62 TILE_RENDER_NONE = 0, /* do nothing */
63 TILE_RENDER_AREA, /* render an area of the tile */
64 TILE_RENDER_ALL /* render the whole tile */
69 OVL_RELATIVE = 1 << 0, /* x,y coordinates are relative, negative values start bottom right */
70 /* OVL_HIDE_ON_SCROLL = 1 << 1*/ /* hide temporarily when scrolling (not yet implemented) */
71 } OverlayRendererFlags;
75 void (*redraw)(void *renderer, gint x, gint y, gint w, gint h,
76 gint clamp, ImageRenderType render, gboolean new_data, gboolean only_existing);
77 void (*area_changed)(void *renderer, gint src_x, gint src_y, gint src_w, gint src_h);
78 void (*queue_clear)(void *renderer);
79 void (*border_clear)(void *renderer);
80 void (*invalidate_all)(void *renderer);
81 void (*invalidate_region)(void *renderer, gint x, gint y, gint w, gint h);
82 void (*scroll)(void *renderer, gint x_off, gint y_off);
83 void (*update_sizes)(void *renderer);
85 gint (*overlay_add)(void *renderer, GdkPixbuf *pixbuf, gint x, gint y, OverlayRendererFlags flags);
86 void (*overlay_set)(void *renderer, gint id, GdkPixbuf *pixbuf, gint x, gint y);
87 gboolean (*overlay_get)(void *renderer, gint id, GdkPixbuf **pixbuf, gint *x, gint *y);
88 void (*overlay_draw)(void *renderer, gint x, gint y, gint w, gint h);
90 void (*stereo_set)(void *renderer, gint stereo_mode);
92 void (*free)(void *renderer);
95 struct _PixbufRenderer
99 gint image_width; /* image actual dimensions (pixels) */
101 gint stereo_pixbuf_offset_right; /* offset of the right part of the stereo image in pixbuf */
102 gint stereo_pixbuf_offset_left; /* offset of the left part of the stereo image in pixbuf */
106 gint window_width; /* allocated size of window (drawing area) */
109 gint viewport_width; /* allocated size of viewport (same as window for normal mode, half of window for SBS mode) */
110 gint viewport_height;
112 gint x_offset; /* offset of image start (non-zero when viewport < window) */
115 gint x_mouse; /* coordinates of the mouse taken from GtkEvent */
118 gint vis_width; /* dimensions of visible part of image */
121 gint width; /* size of scaled image (result) */
124 gint x_scroll; /* scroll offset of image (into width, height to start drawing) */
127 gdouble norm_center_x; /* coordinates of viewport center in the image, in range 0.0 - 1.0 */
128 gdouble norm_center_y; /* these coordinates are used for PR_SCROLL_RESET_NOCHANGE and should be preserved over periods with NULL pixbuf */
130 gdouble subpixel_x_scroll; /* subpixel scroll alignment, used to prevent acumulation of rounding errors */
131 gdouble subpixel_y_scroll;
135 gdouble zoom; /* zoom we want (0 is auto) */
136 gdouble scale; /* zoom we got (should never be 0) */
138 gdouble aspect_ratio; /* screen pixel aspect ratio (2.0 for 3DTV SBS mode) */
140 GdkInterpType zoom_quality;
142 gboolean zoom_expand;
144 PixbufRendererScrollResetType scroll_reset;
148 GtkWidget *parent_window; /* resize parent_window when image dimensions change */
151 gboolean window_limit;
152 gint window_limit_size;
154 gboolean autofit_limit;
155 gint autofit_limit_size;
165 gboolean source_tiles_enabled;
166 gint source_tiles_cache_size;
168 GList *source_tiles; /* list of active source tiles */
169 gint source_tile_width;
170 gint source_tile_height;
172 PixbufRendererTileRequestFunc func_tile_request;
173 PixbufRendererTileDisposeFunc func_tile_dispose;
175 gpointer func_tile_data;
177 PixbufRendererPostProcessFunc func_post_process;
178 gpointer post_process_user_data;
179 gint post_process_slow;
184 gboolean debug_updated; /* debug only */
186 guint scroller_id; /* event source id */
187 gint scroller_overlay;
199 StereoPixbufData stereo_data;
200 gboolean stereo_temp_disable;
201 gint stereo_fixed_width;
202 gint stereo_fixed_height;
203 gint stereo_fixed_x_left;
204 gint stereo_fixed_y_left;
205 gint stereo_fixed_x_right;
206 gint stereo_fixed_y_right;
208 RendererFuncs *renderer;
209 RendererFuncs *renderer2;
212 struct _PixbufRendererClass
214 GtkEventBoxClass parent_class;
216 void (*zoom)(PixbufRenderer *pr, gdouble zoom);
217 void (*clicked)(PixbufRenderer *pr, GdkEventButton *event);
218 void (*scroll_notify)(PixbufRenderer *pr);
219 void (*update_pixel)(PixbufRenderer *pr);
221 void (*render_complete)(PixbufRenderer *pr);
222 void (*drag)(PixbufRenderer *pr, GdkEventButton *event);
228 GType pixbuf_renderer_get_type(void);
230 PixbufRenderer *pixbuf_renderer_new(void);
232 void pixbuf_renderer_set_parent(PixbufRenderer *pr, GtkWindow *window);
233 GtkWindow *pixbuf_renderer_get_parent(PixbufRenderer *pr);
235 /* display a pixbuf */
237 void pixbuf_renderer_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom);
239 /* same as pixbuf_renderer_set_pixbuf but waits with redrawing for pixbuf_renderer_area_changed */
240 void pixbuf_renderer_set_pixbuf_lazy(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, gint orientation, StereoPixbufData stereo_data);
243 GdkPixbuf *pixbuf_renderer_get_pixbuf(PixbufRenderer *pr);
245 void pixbuf_renderer_set_orientation(PixbufRenderer *pr, gint orientation);
246 gint pixbuf_renderer_get_orientation(PixbufRenderer *pr);
248 /* sets the format of stereo data in the input pixbuf */
249 void pixbuf_renderer_set_stereo_data(PixbufRenderer *pr, StereoPixbufData stereo_data);
251 void pixbuf_renderer_set_post_process_func(PixbufRenderer *pr, PixbufRendererPostProcessFunc func, gpointer user_data, gboolean slow);
253 /* display an on-request array of pixbuf tiles */
255 void pixbuf_renderer_set_tiles(PixbufRenderer *pr, gint width, gint height,
256 gint tile_width, gint tile_height, gint cache_size,
257 PixbufRendererTileRequestFunc func_request,
258 PixbufRendererTileDisposeFunc func_dispose,
261 void pixbuf_renderer_set_tiles_size(PixbufRenderer *pr, gint width, gint height);
262 gint pixbuf_renderer_get_tiles(PixbufRenderer *pr);
264 /* move image data from source to pr, source is then set to NULL image */
266 void pixbuf_renderer_move(PixbufRenderer *pr, PixbufRenderer *source);
268 /* update region of existing image */
270 void pixbuf_renderer_area_changed(PixbufRenderer *pr, gint x, gint y, gint width, gint height);
274 void pixbuf_renderer_scroll(PixbufRenderer *pr, gint x, gint y);
275 void pixbuf_renderer_scroll_to_point(PixbufRenderer *pr, gint x, gint y,
276 gdouble x_align, gdouble y_align);
278 void pixbuf_renderer_get_scroll_center(PixbufRenderer *pr, gdouble *x, gdouble *y);
279 void pixbuf_renderer_set_scroll_center(PixbufRenderer *pr, gdouble x, gdouble y);
282 void pixbuf_renderer_zoom_adjust(PixbufRenderer *pr, gdouble increment);
283 void pixbuf_renderer_zoom_adjust_at_point(PixbufRenderer *pr, gdouble increment, gint x, gint y);
285 void pixbuf_renderer_zoom_set(PixbufRenderer *pr, gdouble zoom);
286 gdouble pixbuf_renderer_zoom_get(PixbufRenderer *pr);
287 gdouble pixbuf_renderer_zoom_get_scale(PixbufRenderer *pr);
289 void pixbuf_renderer_zoom_set_limits(PixbufRenderer *pr, gdouble min, gdouble max);
293 gboolean pixbuf_renderer_get_image_size(PixbufRenderer *pr, gint *width, gint *height);
294 gboolean pixbuf_renderer_get_scaled_size(PixbufRenderer *pr, gint *width, gint *height);
296 /* region of image in pixel coordinates */
297 gboolean pixbuf_renderer_get_visible_rect(PixbufRenderer *pr, GdkRectangle *rect);
299 /* actual size of the PixbufRenderer window minus borders,
300 * x and y are the scroll offset and include zoom factor.
302 gboolean pixbuf_renderer_get_virtual_rect(PixbufRenderer *pr, GdkRectangle *rect);
304 /* background color */
305 void pixbuf_renderer_set_color(PixbufRenderer *pr, GdkColor *color);
309 gint pixbuf_renderer_overlay_add(PixbufRenderer *pr, GdkPixbuf *pixbuf, gint x, gint y,
310 OverlayRendererFlags flags);
311 void pixbuf_renderer_overlay_set(PixbufRenderer *pr, gint id, GdkPixbuf *pixbuf, gint x, gint y);
312 gboolean pixbuf_renderer_overlay_get(PixbufRenderer *pr, gint id, GdkPixbuf **pixbuf, gint *x, gint *y);
313 void pixbuf_renderer_overlay_remove(PixbufRenderer *pr, gint id);
315 gboolean pixbuf_renderer_get_mouse_position(PixbufRenderer *pr, gint *x_pixel, gint *y_pixel);
316 /* x_pixel and y_pixel are the pixel coordinates \see pixbuf_renderer_get_mouse_position */
317 gboolean pixbuf_renderer_get_pixel_colors(PixbufRenderer *pr, gint x_pixel, gint y_pixel,
318 gint *r_mouse, gint *g_mouse, gint *b_mouse);
320 void pixbuf_renderer_set_size_early(PixbufRenderer *pr, guint width, guint height);
323 void pixbuf_renderer_stereo_set(PixbufRenderer *pr, gint stereo_mode);
324 gint pixbuf_renderer_stereo_get(PixbufRenderer *pr);
325 void pixbuf_renderer_stereo_fixed_set(PixbufRenderer *pr, gint width, gint height, gint x1, gint y1, gint x2, gint y2);
327 /* protected - for renderer use only*/
329 typedef struct _SourceTile SourceTile;
339 gboolean pr_clip_region(gint x, gint y, gint w, gint h,
340 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
341 gint *rx, gint *ry, gint *rw, gint *rh);
342 void pr_render_complete_signal(PixbufRenderer *pr);
344 void pr_tile_coords_map_orientation(gint orientation,
345 gdouble tile_x, gdouble tile_y, /* coordinates of the tile */
346 gdouble image_w, gdouble image_h,
347 gdouble tile_w, gdouble tile_h,
348 gdouble *res_x, gdouble *res_y);
349 void pr_tile_region_map_orientation(gint orientation,
350 gint area_x, gint area_y, /* coordinates of the area inside tile */
351 gint tile_w, gint tile_h,
352 gint area_w, gint area_h,
353 gint *res_x, gint *res_y,
354 gint *res_w, gint *res_h);
355 void pr_coords_map_orientation_reverse(gint orientation,
356 gint area_x, gint area_y,
357 gint tile_w, gint tile_h,
358 gint area_w, gint area_h,
359 gint *res_x, gint *res_y,
360 gint *res_w, gint *res_h);
362 GList *pr_source_tile_compute_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h, gboolean request);
364 void pr_create_anaglyph(guint mode, GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h);
366 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */