4 * Copyright (C) 2008 - 2010 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 #include <gtk/gtkeventbox.h>
17 #include <gtk/gtkwindow.h>
20 #define TYPE_PIXBUF_RENDERER (pixbuf_renderer_get_type())
21 #define PIXBUF_RENDERER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), TYPE_PIXBUF_RENDERER, PixbufRenderer))
22 #define PIXBUF_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), TYPE_PIXBUF_RENDERER, PixbufRendererClass))
23 #define IS_PIXBUF_RENDERER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), TYPE_PIXBUF_RENDERER))
24 #define IS_PIXBUF_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), TYPE_PIXBUF_RENDERER))
25 #define PIXBUF_RENDERER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), TYPE_PIXBUF_RENDERER, PixbufRendererClass))
27 /* alpha channel checkerboard background (same as gimp) */
28 #define PR_ALPHA_CHECK1 0x00999999
29 #define PR_ALPHA_CHECK2 0x00666666
30 #define PR_ALPHA_CHECK_SIZE 16
31 /* when scaling image to below this size, use nearest pixel for scaling
32 * (below about 4, the other scale types become slow generating their conversion tables)
34 #define PR_MIN_SCALE_SIZE 8
36 /* default size of tile cache (mb) */
37 #define PR_CACHE_SIZE_DEFAULT 8
39 /* round A up/down to integer count of B */
40 #define ROUND_UP(A,B) ((gint)(((A)+(B)-1)/(B))*(B))
41 #define ROUND_DOWN(A,B) ((gint)(((A))/(B))*(B))
44 typedef struct _RendererFuncs RendererFuncs;
46 typedef struct _PixbufRenderer PixbufRenderer;
47 typedef struct _PixbufRendererClass PixbufRendererClass;
50 typedef gint (* PixbufRendererTileRequestFunc)(PixbufRenderer *pr, gint x, gint y,
51 gint width, gint height, GdkPixbuf *pixbuf, gpointer user_data);
52 typedef void (* PixbufRendererTileDisposeFunc)(PixbufRenderer *pr, gint x, gint y,
53 gint width, gint height, GdkPixbuf *pixbuf, gpointer user_data);
55 typedef void (* PixbufRendererPostProcessFunc)(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y,
56 gint width, gint height, gpointer user_data);
59 PR_SCROLL_RESET_TOPLEFT = 0,
60 PR_SCROLL_RESET_CENTER,
61 PR_SCROLL_RESET_NOCHANGE,
62 PR_SCROLL_RESET_COUNT,
63 } PixbufRendererScrollResetType;
66 TILE_RENDER_NONE = 0, /* do nothing */
67 TILE_RENDER_AREA, /* render an area of the tile */
68 TILE_RENDER_ALL /* render the whole tile */
73 OVL_RELATIVE = 1 << 0, /* x,y coordinates are relative, negative values start bottom right */
74 /* OVL_HIDE_ON_SCROLL = 1 << 1*/ /* hide temporarily when scrolling (not yet implemented) */
75 } OverlayRendererFlags;
79 void (*queue)(void *renderer, gint x, gint y, gint w, gint h,
80 gint clamp, ImageRenderType render, gboolean new_data, gboolean only_existing);
81 void (*queue_clear)(void *renderer);
82 void (*border_draw)(void *renderer, gint x, gint y, gint w, gint h);
83 void (*invalidate_all)(void *renderer);
84 void (*invalidate_region)(void *renderer, gint x, gint y, gint w, gint h);
85 void (*scroll)(void *renderer, gint x_off, gint y_off);
86 void (*update_sizes)(void *renderer);
88 gint (*overlay_add)(void *renderer, GdkPixbuf *pixbuf, gint x, gint y, OverlayRendererFlags flags);
89 void (*overlay_set)(void *renderer, gint id, GdkPixbuf *pixbuf, gint x, gint y);
90 gboolean (*overlay_get)(void *renderer, gint id, GdkPixbuf **pixbuf, gint *x, gint *y);
91 void (*overlay_draw)(void *renderer, gint x, gint y, gint w, gint h);
93 void (*stereo_set)(void *renderer, gint stereo_mode);
95 void (*free)(void *renderer);
98 struct _PixbufRenderer
100 GtkEventBox eventbox;
102 gint image_width; /* image actual dimensions (pixels) */
104 gint stereo_pixbuf_offset; /* offset of the right part of the stereo image in pixbuf */
108 gint window_width; /* allocated size of window (drawing area) */
111 gint viewport_width; /* allocated size of viewport (same as window for normal mode, half of window for SBS mode) */
112 gint viewport_height;
114 gint x_offset; /* offset of image start (non-zero when viewport < window) */
117 gint x_mouse; /* coordinates of the mouse taken from GtkEvent */
120 gint vis_width; /* dimensions of visible part of image */
123 gint width; /* size of scaled image (result) */
126 gint x_scroll; /* scroll offset of image (into width, height to start drawing) */
129 gdouble norm_center_x; /* coordinates of viewport center in the image, in range 0.0 - 1.0 */
130 gdouble norm_center_y; /* these coordinates are used for PR_SCROLL_RESET_NOCHANGE and should be preserved over periods with NULL pixbuf */
132 gdouble subpixel_x_scroll; /* subpixel scroll alignment, used to prevent acumulation of rounding errors */
133 gdouble subpixel_y_scroll;
137 gdouble zoom; /* zoom we want (0 is auto) */
138 gdouble scale; /* zoom we got (should never be 0) */
140 gdouble aspect_ratio; /* screen pixel aspect ratio (2.0 for 3DTV SBS mode) */
142 GdkInterpType zoom_quality;
144 gboolean zoom_expand;
146 GdkRgbDither dither_quality;
148 PixbufRendererScrollResetType scroll_reset;
152 GtkWidget *parent_window; /* resize parent_window when image dimensions change */
155 gboolean window_limit;
156 gint window_limit_size;
158 gboolean autofit_limit;
159 gint autofit_limit_size;
169 gboolean source_tiles_enabled;
170 gint source_tiles_cache_size;
172 GList *source_tiles; /* list of active source tiles */
173 gint source_tile_width;
174 gint source_tile_height;
176 PixbufRendererTileRequestFunc func_tile_request;
177 PixbufRendererTileDisposeFunc func_tile_dispose;
179 gpointer func_tile_data;
181 PixbufRendererPostProcessFunc func_post_process;
182 gpointer post_process_user_data;
183 gint post_process_slow;
188 gboolean debug_updated; /* debug only */
190 guint scroller_id; /* event source id */
191 gint scroller_overlay;
203 RendererFuncs *renderer;
204 RendererFuncs *renderer2;
207 struct _PixbufRendererClass
209 GtkEventBoxClass parent_class;
211 void (*zoom)(PixbufRenderer *pr, gdouble zoom);
212 void (*clicked)(PixbufRenderer *pr, GdkEventButton *event);
213 void (*scroll_notify)(PixbufRenderer *pr);
214 void (*update_pixel)(PixbufRenderer *pr);
216 void (*render_complete)(PixbufRenderer *pr);
217 void (*drag)(PixbufRenderer *pr, GdkEventButton *event);
223 GType pixbuf_renderer_get_type(void);
225 PixbufRenderer *pixbuf_renderer_new(void);
227 void pixbuf_renderer_set_parent(PixbufRenderer *pr, GtkWindow *window);
228 GtkWindow *pixbuf_renderer_get_parent(PixbufRenderer *pr);
230 /* display a pixbuf */
232 void pixbuf_renderer_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom);
234 /* same as pixbuf_renderer_set_pixbuf but waits with redrawing for pixbuf_renderer_area_changed */
235 void pixbuf_renderer_set_pixbuf_lazy(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, gint orientation);
238 GdkPixbuf *pixbuf_renderer_get_pixbuf(PixbufRenderer *pr);
240 void pixbuf_renderer_set_orientation(PixbufRenderer *pr, gint orientation);
241 gint pixbuf_renderer_get_orientation(PixbufRenderer *pr);
243 void pixbuf_renderer_set_post_process_func(PixbufRenderer *pr, PixbufRendererPostProcessFunc func, gpointer user_data, gboolean slow);
245 /* display an on-request array of pixbuf tiles */
247 void pixbuf_renderer_set_tiles(PixbufRenderer *pr, gint width, gint height,
248 gint tile_width, gint tile_height, gint cache_size,
249 PixbufRendererTileRequestFunc func_request,
250 PixbufRendererTileDisposeFunc func_dispose,
253 void pixbuf_renderer_set_tiles_size(PixbufRenderer *pr, gint width, gint height);
254 gint pixbuf_renderer_get_tiles(PixbufRenderer *pr);
256 /* move image data from source to pr, source is then set to NULL image */
258 void pixbuf_renderer_move(PixbufRenderer *pr, PixbufRenderer *source);
260 /* update region of existing image */
262 void pixbuf_renderer_area_changed(PixbufRenderer *pr, gint x, gint y, gint width, gint height);
266 void pixbuf_renderer_scroll(PixbufRenderer *pr, gint x, gint y);
267 void pixbuf_renderer_scroll_to_point(PixbufRenderer *pr, gint x, gint y,
268 gdouble x_align, gdouble y_align);
270 void pixbuf_renderer_get_scroll_center(PixbufRenderer *pr, gdouble *x, gdouble *y);
271 void pixbuf_renderer_set_scroll_center(PixbufRenderer *pr, gdouble x, gdouble y);
274 void pixbuf_renderer_zoom_adjust(PixbufRenderer *pr, gdouble increment);
275 void pixbuf_renderer_zoom_adjust_at_point(PixbufRenderer *pr, gdouble increment, gint x, gint y);
277 void pixbuf_renderer_zoom_set(PixbufRenderer *pr, gdouble zoom);
278 gdouble pixbuf_renderer_zoom_get(PixbufRenderer *pr);
279 gdouble pixbuf_renderer_zoom_get_scale(PixbufRenderer *pr);
281 void pixbuf_renderer_zoom_set_limits(PixbufRenderer *pr, gdouble min, gdouble max);
285 gboolean pixbuf_renderer_get_image_size(PixbufRenderer *pr, gint *width, gint *height);
286 gboolean pixbuf_renderer_get_scaled_size(PixbufRenderer *pr, gint *width, gint *height);
288 /* region of image in pixel coordinates */
289 gboolean pixbuf_renderer_get_visible_rect(PixbufRenderer *pr, GdkRectangle *rect);
291 /* actual size of the PixbufRenderer window minus borders,
292 * x and y are the scroll offset and include zoom factor.
294 gboolean pixbuf_renderer_get_virtual_rect(PixbufRenderer *pr, GdkRectangle *rect);
296 /* background color */
297 void pixbuf_renderer_set_color(PixbufRenderer *pr, GdkColor *color);
301 gint pixbuf_renderer_overlay_add(PixbufRenderer *pr, GdkPixbuf *pixbuf, gint x, gint y,
302 OverlayRendererFlags flags);
303 void pixbuf_renderer_overlay_set(PixbufRenderer *pr, gint id, GdkPixbuf *pixbuf, gint x, gint y);
304 gboolean pixbuf_renderer_overlay_get(PixbufRenderer *pr, gint id, GdkPixbuf **pixbuf, gint *x, gint *y);
305 void pixbuf_renderer_overlay_remove(PixbufRenderer *pr, gint id);
307 gboolean pixbuf_renderer_get_mouse_position(PixbufRenderer *pr, gint *x_pixel, gint *y_pixel);
308 /* x_pixel and y_pixel are the pixel coordinates \see pixbuf_renderer_get_mouse_position */
309 gboolean pixbuf_renderer_get_pixel_colors(PixbufRenderer *pr, gint x_pixel, gint y_pixel,
310 gint *r_mouse, gint *g_mouse, gint *b_mouse);
312 void pixbuf_renderer_set_size_early(PixbufRenderer *pr, guint width, guint height);
315 void pixbuf_renderer_stereo_set(PixbufRenderer *pr, gint stereo_mode);
316 gint pixbuf_renderer_stereo_get(PixbufRenderer *pr);
318 /* protected - for renderer use only*/
320 typedef struct _SourceTile SourceTile;
330 gboolean pr_clip_region(gint x, gint y, gint w, gint h,
331 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
332 gint *rx, gint *ry, gint *rw, gint *rh);
333 void pr_render_complete_signal(PixbufRenderer *pr);
335 void pr_tile_coords_map_orientation(gint orientation,
336 gdouble tile_x, gdouble tile_y, /* coordinates of the tile */
337 gdouble image_w, gdouble image_h,
338 gdouble tile_w, gdouble tile_h,
339 gdouble *res_x, gdouble *res_y);
340 void pr_tile_region_map_orientation(gint orientation,
341 gint area_x, gint area_y, /* coordinates of the area inside tile */
342 gint tile_w, gint tile_h,
343 gint area_w, gint area_h,
344 gint *res_x, gint *res_y,
345 gint *res_w, gint *res_h);
346 void pr_coords_map_orientation_reverse(gint orientation,
347 gint area_x, gint area_y,
348 gint tile_w, gint tile_h,
349 gint area_w, gint area_h,
350 gint *res_x, gint *res_y,
351 gint *res_w, gint *res_h);
353 GList *pr_source_tile_compute_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h, gboolean request);
355 void pr_create_anaglyph(GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h);
357 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */