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!
19 #include "pixbuf-renderer.h"
20 #include "renderer-tiles.h"
21 #include "renderer-clutter.h"
28 /* comment this out if not using this from within Geeqie
29 * defining GQ_BUILD does these things:
30 * - Sets the shift-click scroller pixbuf to a nice icon instead of a black box
36 #include "pixbuf_util.h"
40 EXIF_ORIENTATION_UNKNOWN = 0,
41 EXIF_ORIENTATION_TOP_LEFT = 1,
42 EXIF_ORIENTATION_TOP_RIGHT = 2,
43 EXIF_ORIENTATION_BOTTOM_RIGHT = 3,
44 EXIF_ORIENTATION_BOTTOM_LEFT = 4,
45 EXIF_ORIENTATION_LEFT_TOP = 5,
46 EXIF_ORIENTATION_RIGHT_TOP = 6,
47 EXIF_ORIENTATION_RIGHT_BOTTOM = 7,
48 EXIF_ORIENTATION_LEFT_BOTTOM = 8
49 } ExifOrientationType;
53 /* default min and max zoom */
54 #define PR_ZOOM_MIN -32.0
55 #define PR_ZOOM_MAX 32.0
57 /* distance to drag mouse to disable image flip */
58 #define PR_DRAG_SCROLL_THRESHHOLD 4
60 /* increase pan rate when holding down shift */
61 #define PR_PAN_SHIFT_MULTIPLIER 6
64 #define PR_SCROLLER_UPDATES_PER_SEC 30
65 #define PR_SCROLLER_DEAD_ZONE 6
67 /* when scaling image to below this size, use nearest pixel for scaling
68 * (below about 4, the other scale types become slow generating their conversion tables)
70 #define PR_MIN_SCALE_SIZE 8
76 SIGNAL_RENDER_COMPLETE,
93 PROP_CACHE_SIZE_DISPLAY,
94 PROP_CACHE_SIZE_TILES,
97 PROP_WINDOW_LIMIT_VALUE,
99 PROP_AUTOFIT_LIMIT_VALUE
104 PR_ZOOM_FORCE = 1 << 0,
105 PR_ZOOM_NEW = 1 << 1,
106 PR_ZOOM_CENTER = 1 << 2,
107 PR_ZOOM_INVALIDATE = 1 << 3,
108 PR_ZOOM_LAZY = 1 << 4 /* wait with redraw for pixbuf_renderer_area_changed */
111 static guint signals[SIGNAL_COUNT] = { 0 };
112 static GtkEventBoxClass *parent_class = NULL;
116 static void pixbuf_renderer_class_init(PixbufRendererClass *class);
117 static void pixbuf_renderer_init(PixbufRenderer *pr);
118 static void pixbuf_renderer_finalize(GObject *object);
119 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
120 const GValue *value, GParamSpec *pspec);
121 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
122 GValue *value, GParamSpec *pspec);
123 static void pr_scroller_timer_set(PixbufRenderer *pr, gboolean start);
126 static void pr_source_tile_free_all(PixbufRenderer *pr);
128 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
129 PrZoomFlags flags, gint px, gint py);
131 static void pr_signals_connect(PixbufRenderer *pr);
132 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data);
133 static void pr_stereo_temp_disable(PixbufRenderer *pr, gboolean disable);
137 *-------------------------------------------------------------------
138 * Pixbuf Renderer object
139 *-------------------------------------------------------------------
142 GType pixbuf_renderer_get_type(void)
144 static GType pixbuf_renderer_type = 0;
146 if (!pixbuf_renderer_type)
148 static const GTypeInfo pixbuf_renderer_info =
150 sizeof(PixbufRendererClass), /* class_size */
151 NULL, /* base_init */
152 NULL, /* base_finalize */
153 (GClassInitFunc)pixbuf_renderer_class_init,
154 NULL, /* class_finalize */
155 NULL, /* class_data */
156 sizeof(PixbufRenderer), /* instance_size */
158 (GInstanceInitFunc)pixbuf_renderer_init, /* instance_init */
159 NULL, /* value_table */
162 pixbuf_renderer_type = g_type_register_static(GTK_TYPE_EVENT_BOX, "PixbufRenderer",
163 &pixbuf_renderer_info, 0);
166 return pixbuf_renderer_type;
169 static void pixbuf_renderer_class_init(PixbufRendererClass *class)
171 GObjectClass *gobject_class = G_OBJECT_CLASS(class);
173 parent_class = g_type_class_peek_parent(class);
175 gobject_class->set_property = pixbuf_renderer_set_property;
176 gobject_class->get_property = pixbuf_renderer_get_property;
178 gobject_class->finalize = pixbuf_renderer_finalize;
180 g_object_class_install_property(gobject_class,
182 g_param_spec_double("zoom_min",
188 G_PARAM_READABLE | G_PARAM_WRITABLE));
190 g_object_class_install_property(gobject_class,
192 g_param_spec_double("zoom_max",
198 G_PARAM_READABLE | G_PARAM_WRITABLE));
200 g_object_class_install_property(gobject_class,
202 g_param_spec_uint("zoom_quality",
208 G_PARAM_READABLE | G_PARAM_WRITABLE));
210 g_object_class_install_property(gobject_class,
212 g_param_spec_boolean("zoom_2pass",
216 G_PARAM_READABLE | G_PARAM_WRITABLE));
218 g_object_class_install_property(gobject_class,
220 g_param_spec_boolean("zoom_expand",
221 "Expand image in autozoom.",
224 G_PARAM_READABLE | G_PARAM_WRITABLE));
225 g_object_class_install_property(gobject_class,
227 g_param_spec_uint("scroll_reset",
228 "New image scroll reset",
230 PR_SCROLL_RESET_TOPLEFT,
231 PR_SCROLL_RESET_NOCHANGE,
232 PR_SCROLL_RESET_TOPLEFT,
233 G_PARAM_READABLE | G_PARAM_WRITABLE));
235 g_object_class_install_property(gobject_class,
237 g_param_spec_boolean("delay_flip",
238 "Delay image update",
241 G_PARAM_READABLE | G_PARAM_WRITABLE));
243 g_object_class_install_property(gobject_class,
245 g_param_spec_boolean("loading",
246 "Image actively loading",
249 G_PARAM_READABLE | G_PARAM_WRITABLE));
251 g_object_class_install_property(gobject_class,
253 g_param_spec_boolean("complete",
254 "Image rendering complete",
257 G_PARAM_READABLE | G_PARAM_WRITABLE));
259 g_object_class_install_property(gobject_class,
260 PROP_CACHE_SIZE_DISPLAY,
261 g_param_spec_uint("cache_display",
262 "Display cache size MB",
266 PR_CACHE_SIZE_DEFAULT,
267 G_PARAM_READABLE | G_PARAM_WRITABLE));
269 g_object_class_install_property(gobject_class,
270 PROP_CACHE_SIZE_TILES,
271 g_param_spec_uint("cache_tiles",
273 "Number of tiles to retain in memory at any one time.",
276 PR_CACHE_SIZE_DEFAULT,
277 G_PARAM_READABLE | G_PARAM_WRITABLE));
279 g_object_class_install_property(gobject_class,
281 g_param_spec_boolean("window_fit",
282 "Fit window to image size",
285 G_PARAM_READABLE | G_PARAM_WRITABLE));
287 g_object_class_install_property(gobject_class,
289 g_param_spec_boolean("window_limit",
290 "Limit size of parent window",
293 G_PARAM_READABLE | G_PARAM_WRITABLE));
295 g_object_class_install_property(gobject_class,
296 PROP_WINDOW_LIMIT_VALUE,
297 g_param_spec_uint("window_limit_value",
298 "Size limit of parent window",
303 G_PARAM_READABLE | G_PARAM_WRITABLE));
305 g_object_class_install_property(gobject_class,
307 g_param_spec_boolean("autofit_limit",
308 "Limit size of image when autofitting",
311 G_PARAM_READABLE | G_PARAM_WRITABLE));
313 g_object_class_install_property(gobject_class,
314 PROP_AUTOFIT_LIMIT_VALUE,
315 g_param_spec_uint("autofit_limit_value",
316 "Size limit of image when autofitting",
321 G_PARAM_READABLE | G_PARAM_WRITABLE));
324 signals[SIGNAL_ZOOM] =
326 G_OBJECT_CLASS_TYPE(gobject_class),
328 G_STRUCT_OFFSET(PixbufRendererClass, zoom),
330 g_cclosure_marshal_VOID__DOUBLE,
334 signals[SIGNAL_CLICKED] =
335 g_signal_new("clicked",
336 G_OBJECT_CLASS_TYPE(gobject_class),
338 G_STRUCT_OFFSET(PixbufRendererClass, clicked),
340 g_cclosure_marshal_VOID__BOXED,
344 signals[SIGNAL_SCROLL_NOTIFY] =
345 g_signal_new("scroll-notify",
346 G_OBJECT_CLASS_TYPE(gobject_class),
348 G_STRUCT_OFFSET(PixbufRendererClass, scroll_notify),
350 g_cclosure_marshal_VOID__VOID,
353 signals[SIGNAL_RENDER_COMPLETE] =
354 g_signal_new("render-complete",
355 G_OBJECT_CLASS_TYPE(gobject_class),
357 G_STRUCT_OFFSET(PixbufRendererClass, render_complete),
359 g_cclosure_marshal_VOID__VOID,
362 signals[SIGNAL_DRAG] =
364 G_OBJECT_CLASS_TYPE(gobject_class),
366 G_STRUCT_OFFSET(PixbufRendererClass, drag),
368 g_cclosure_marshal_VOID__BOXED,
372 signals[SIGNAL_UPDATE_PIXEL] =
373 g_signal_new("update-pixel",
374 G_OBJECT_CLASS_TYPE(gobject_class),
376 G_STRUCT_OFFSET(PixbufRendererClass, update_pixel),
378 g_cclosure_marshal_VOID__VOID,
382 static RendererFuncs *pr_backend_renderer_new(PixbufRenderer *pr)
384 if (options->image.use_clutter_renderer)
387 return renderer_clutter_new(pr);
389 DEBUG_0("Geeqie is built without clutter renderer support");
392 return renderer_tiles_new(pr);
396 static void pixbuf_renderer_init(PixbufRenderer *pr)
400 box = GTK_WIDGET(pr);
402 pr->zoom_min = PR_ZOOM_MIN;
403 pr->zoom_max = PR_ZOOM_MAX;
404 pr->zoom_quality = GDK_INTERP_BILINEAR;
405 pr->zoom_2pass = FALSE;
409 pr->aspect_ratio = 1.0;
411 pr->scroll_reset = PR_SCROLL_RESET_TOPLEFT;
414 pr->scroller_overlay = -1;
419 pr->source_tiles_enabled = FALSE;
420 pr->source_tiles = NULL;
424 pr->norm_center_x = 0.5;
425 pr->norm_center_y = 0.5;
427 pr->stereo_mode = PR_STEREO_NONE;
429 pr->renderer = pr_backend_renderer_new(pr);
431 pr->renderer2 = NULL;
433 gtk_widget_set_double_buffered(box, FALSE);
434 gtk_widget_set_app_paintable(box, TRUE);
435 g_signal_connect_after(G_OBJECT(box), "size_allocate",
436 G_CALLBACK(pr_size_cb), pr);
438 pr_signals_connect(pr);
441 static void pixbuf_renderer_finalize(GObject *object)
445 pr = PIXBUF_RENDERER(object);
447 pr->renderer->free(pr->renderer);
448 if (pr->renderer2) pr->renderer2->free(pr->renderer2);
451 if (pr->pixbuf) g_object_unref(pr->pixbuf);
453 pr_scroller_timer_set(pr, FALSE);
455 pr_source_tile_free_all(pr);
458 PixbufRenderer *pixbuf_renderer_new(void)
460 return g_object_new(TYPE_PIXBUF_RENDERER, NULL);
463 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
464 const GValue *value, GParamSpec *pspec)
468 pr = PIXBUF_RENDERER(object);
473 pr->zoom_min = g_value_get_double(value);
476 pr->zoom_max = g_value_get_double(value);
478 case PROP_ZOOM_QUALITY:
479 pr->zoom_quality = g_value_get_uint(value);
481 case PROP_ZOOM_2PASS:
482 pr->zoom_2pass = g_value_get_boolean(value);
484 case PROP_ZOOM_EXPAND:
485 pr->zoom_expand = g_value_get_boolean(value);
487 case PROP_SCROLL_RESET:
488 pr->scroll_reset = g_value_get_uint(value);
490 case PROP_DELAY_FLIP:
491 pr->delay_flip = g_value_get_boolean(value);
494 pr->loading = g_value_get_boolean(value);
497 pr->complete = g_value_get_boolean(value);
499 case PROP_CACHE_SIZE_DISPLAY:
500 // pr->tile_cache_max = g_value_get_uint(value);
502 case PROP_CACHE_SIZE_TILES:
503 pr->source_tiles_cache_size = g_value_get_uint(value);
505 case PROP_WINDOW_FIT:
506 pr->window_fit = g_value_get_boolean(value);
508 case PROP_WINDOW_LIMIT:
509 pr->window_limit = g_value_get_boolean(value);
511 case PROP_WINDOW_LIMIT_VALUE:
512 pr->window_limit_size = g_value_get_uint(value);
514 case PROP_AUTOFIT_LIMIT:
515 pr->autofit_limit = g_value_get_boolean(value);
517 case PROP_AUTOFIT_LIMIT_VALUE:
518 pr->autofit_limit_size = g_value_get_uint(value);
521 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
526 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
527 GValue *value, GParamSpec *pspec)
531 pr = PIXBUF_RENDERER(object);
536 g_value_set_double(value, pr->zoom_min);
539 g_value_set_double(value, pr->zoom_max);
541 case PROP_ZOOM_QUALITY:
542 g_value_set_uint(value, pr->zoom_quality);
544 case PROP_ZOOM_2PASS:
545 g_value_set_boolean(value, pr->zoom_2pass);
547 case PROP_ZOOM_EXPAND:
548 g_value_set_boolean(value, pr->zoom_expand);
550 case PROP_SCROLL_RESET:
551 g_value_set_uint(value, pr->scroll_reset);
553 case PROP_DELAY_FLIP:
554 g_value_set_boolean(value, pr->delay_flip);
557 g_value_set_boolean(value, pr->loading);
560 g_value_set_boolean(value, pr->complete);
562 case PROP_CACHE_SIZE_DISPLAY:
563 // g_value_set_uint(value, pr->tile_cache_max);
565 case PROP_CACHE_SIZE_TILES:
566 g_value_set_uint(value, pr->source_tiles_cache_size);
568 case PROP_WINDOW_FIT:
569 g_value_set_boolean(value, pr->window_fit);
571 case PROP_WINDOW_LIMIT:
572 g_value_set_boolean(value, pr->window_limit);
574 case PROP_WINDOW_LIMIT_VALUE:
575 g_value_set_uint(value, pr->window_limit_size);
577 case PROP_AUTOFIT_LIMIT:
578 g_value_set_boolean(value, pr->autofit_limit);
580 case PROP_AUTOFIT_LIMIT_VALUE:
581 g_value_set_uint(value, pr->autofit_limit_size);
584 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
591 *-------------------------------------------------------------------
593 *-------------------------------------------------------------------
596 static void widget_set_cursor(GtkWidget *widget, gint icon)
600 if (!gtk_widget_get_window(widget)) return;
608 cursor = gdk_cursor_new(icon);
611 gdk_window_set_cursor(gtk_widget_get_window(widget), cursor);
613 if (cursor) gdk_cursor_unref(cursor);
616 gboolean pr_clip_region(gint x, gint y, gint w, gint h,
617 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
618 gint *rx, gint *ry, gint *rw, gint *rh)
620 if (clip_x + clip_w <= x ||
622 clip_y + clip_h <= y ||
628 *rx = MAX(x, clip_x);
629 *rw = MIN((x + w), (clip_x + clip_w)) - *rx;
631 *ry = MAX(y, clip_y);
632 *rh = MIN((y + h), (clip_y + clip_h)) - *ry;
637 static gboolean pr_parent_window_sizable(PixbufRenderer *pr)
639 GdkWindowState state;
641 if (!pr->parent_window) return FALSE;
642 if (!pr->window_fit) return FALSE;
643 if (!gtk_widget_get_window(GTK_WIDGET(pr))) return FALSE;
645 if (!gtk_widget_get_window(pr->parent_window)) return FALSE;
646 state = gdk_window_get_state(gtk_widget_get_window(pr->parent_window));
647 if (state & GDK_WINDOW_STATE_MAXIMIZED) return FALSE;
652 static gboolean pr_parent_window_resize(PixbufRenderer *pr, gint w, gint h)
657 GtkAllocation widget_allocation;
658 GtkAllocation parent_allocation;
660 if (!pr_parent_window_sizable(pr)) return FALSE;
662 if (pr->window_limit)
664 gint sw = gdk_screen_width() * pr->window_limit_size / 100;
665 gint sh = gdk_screen_height() * pr->window_limit_size / 100;
671 widget = GTK_WIDGET(pr);
672 parent = GTK_WIDGET(pr->parent_window);
674 gtk_widget_get_allocation(widget, &widget_allocation);
675 gtk_widget_get_allocation(parent, &parent_allocation);
677 w += (parent_allocation.width - widget_allocation.width);
678 h += (parent_allocation.height - widget_allocation.height);
680 ww = gdk_window_get_width(gtk_widget_get_window(parent));
681 wh = gdk_window_get_height(gtk_widget_get_window(parent));
682 if (w == ww && h == wh) return FALSE;
684 gdk_window_resize(gtk_widget_get_window(parent), w, h);
689 void pixbuf_renderer_set_parent(PixbufRenderer *pr, GtkWindow *window)
691 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
692 g_return_if_fail(window == NULL || GTK_IS_WINDOW(window));
694 pr->parent_window = GTK_WIDGET(window);
697 GtkWindow *pixbuf_renderer_get_parent(PixbufRenderer *pr)
699 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
701 return GTK_WINDOW(pr->parent_window);
706 *-------------------------------------------------------------------
708 *-------------------------------------------------------------------
712 gint pixbuf_renderer_overlay_add(PixbufRenderer *pr, GdkPixbuf *pixbuf, gint x, gint y,
713 OverlayRendererFlags flags)
715 /* let's assume both renderers returns the same value */
716 if (pr->renderer2) pr->renderer2->overlay_add(pr->renderer2, pixbuf, x, y, flags);
717 return pr->renderer->overlay_add(pr->renderer, pixbuf, x, y, flags);
720 void pixbuf_renderer_overlay_set(PixbufRenderer *pr, gint id, GdkPixbuf *pixbuf, gint x, gint y)
722 pr->renderer->overlay_set(pr->renderer, id, pixbuf, x, y);
723 if (pr->renderer2) pr->renderer2->overlay_set(pr->renderer2, id, pixbuf, x, y);
726 gboolean pixbuf_renderer_overlay_get(PixbufRenderer *pr, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
728 if (pr->renderer2) pr->renderer2->overlay_get(pr->renderer2, id, pixbuf, x, y);
729 return pr->renderer->overlay_get(pr->renderer, id, pixbuf, x, y);
732 void pixbuf_renderer_overlay_remove(PixbufRenderer *pr, gint id)
734 pr->renderer->overlay_set(pr->renderer, id, NULL, 0, 0);
735 if (pr->renderer2) pr->renderer2->overlay_set(pr->renderer2, id, NULL, 0, 0);
739 *-------------------------------------------------------------------
741 *-------------------------------------------------------------------
745 static gboolean pr_scroller_update_cb(gpointer data)
747 PixbufRenderer *pr = data;
751 /* this was a simple scroll by difference between scroller and mouse position,
752 * but all this math results in a smoother result and accounts for a dead zone.
755 if (abs(pr->scroller_xpos - pr->scroller_x) < PR_SCROLLER_DEAD_ZONE)
761 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
762 x = (pr->scroller_xpos - pr->scroller_x) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
763 x += (x > 0) ? -shift : shift;
766 if (abs(pr->scroller_ypos - pr->scroller_y) < PR_SCROLLER_DEAD_ZONE)
772 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
773 y = (pr->scroller_ypos - pr->scroller_y) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
774 y += (y > 0) ? -shift : shift;
777 if (abs(x) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
783 xinc = pr->scroller_xinc;
787 if (xinc < 0) xinc = 0;
788 if (x < xinc) xinc = x;
789 if (x > xinc) xinc = MIN(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
793 if (xinc > 0) xinc = 0;
794 if (x > xinc) xinc = x;
795 if (x < xinc) xinc = MAX(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
799 if (abs(y) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
805 yinc = pr->scroller_yinc;
809 if (yinc < 0) yinc = 0;
810 if (y < yinc) yinc = y;
811 if (y > yinc) yinc = MIN(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
815 if (yinc > 0) yinc = 0;
816 if (y > yinc) yinc = y;
817 if (y < yinc) yinc = MAX(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
821 pr->scroller_xinc = xinc;
822 pr->scroller_yinc = yinc;
824 xinc = xinc / PR_SCROLLER_UPDATES_PER_SEC;
825 yinc = yinc / PR_SCROLLER_UPDATES_PER_SEC;
827 pixbuf_renderer_scroll(pr, xinc, yinc);
832 static void pr_scroller_timer_set(PixbufRenderer *pr, gboolean start)
836 g_source_remove(pr->scroller_id);
842 pr->scroller_id = g_timeout_add(1000 / PR_SCROLLER_UPDATES_PER_SEC,
843 pr_scroller_update_cb, pr);
847 static void pr_scroller_start(PixbufRenderer *pr, gint x, gint y)
849 if (pr->scroller_overlay == -1)
855 pixbuf = pixbuf_inline(PIXBUF_INLINE_SCROLLER);
857 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 32, 32);
858 gdk_pixbuf_fill(pixbuf, 0x000000ff);
860 w = gdk_pixbuf_get_width(pixbuf);
861 h = gdk_pixbuf_get_height(pixbuf);
863 pr->scroller_overlay = pixbuf_renderer_overlay_add(pr, pixbuf, x - w / 2, y - h / 2, OVL_NORMAL);
864 g_object_unref(pixbuf);
869 pr->scroller_xpos = x;
870 pr->scroller_ypos = y;
872 pr_scroller_timer_set(pr, TRUE);
875 static void pr_scroller_stop(PixbufRenderer *pr)
877 if (!pr->scroller_id) return;
879 pixbuf_renderer_overlay_remove(pr, pr->scroller_overlay);
880 pr->scroller_overlay = -1;
882 pr_scroller_timer_set(pr, FALSE);
886 *-------------------------------------------------------------------
888 *-------------------------------------------------------------------
891 void pixbuf_renderer_set_color(PixbufRenderer *pr, GdkColor *color)
896 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
898 widget = GTK_WIDGET(pr);
903 style = gtk_style_copy(gtk_widget_get_style(widget));
904 slot = &style->bg[GTK_STATE_NORMAL];
906 slot->red = color->red;
907 slot->green = color->green;
908 slot->blue = color->blue;
911 style = gtk_style_copy(gtk_widget_get_default_style());
914 gtk_widget_set_style(widget, style);
916 pr->renderer->update_viewport(pr->renderer);
917 if (pr->renderer2) pr->renderer2->update_viewport(pr->renderer2);
921 *-------------------------------------------------------------------
923 *-------------------------------------------------------------------
926 static void pr_source_tile_free(SourceTile *st)
930 if (st->pixbuf) g_object_unref(st->pixbuf);
934 static void pr_source_tile_free_all(PixbufRenderer *pr)
938 work = pr->source_tiles;
946 pr_source_tile_free(st);
949 g_list_free(pr->source_tiles);
950 pr->source_tiles = NULL;
953 static void pr_source_tile_unset(PixbufRenderer *pr)
955 pr_source_tile_free_all(pr);
956 pr->source_tiles_enabled = FALSE;
959 static gboolean pr_source_tile_visible(PixbufRenderer *pr, SourceTile *st)
963 if (!st) return FALSE;
965 // x1 = ROUND_DOWN(pr->x_scroll, pr->tile_width);
966 // y1 = ROUND_DOWN(pr->y_scroll, pr->tile_height);
967 // x2 = ROUND_UP(pr->x_scroll + pr->vis_width, pr->tile_width);
968 // y2 = ROUND_UP(pr->y_scroll + pr->vis_height, pr->tile_height);
971 x2 = pr->x_scroll + pr->vis_width;
972 y2 = pr->y_scroll + pr->vis_height;
974 return !((gdouble)st->x * pr->scale > (gdouble)x2 ||
975 (gdouble)(st->x + pr->source_tile_width) * pr->scale < (gdouble)x1 ||
976 (gdouble)st->y * pr->scale > (gdouble)y2 ||
977 (gdouble)(st->y + pr->source_tile_height) * pr->scale < (gdouble)y1);
980 static SourceTile *pr_source_tile_new(PixbufRenderer *pr, gint x, gint y)
982 SourceTile *st = NULL;
985 g_return_val_if_fail(pr->source_tile_width >= 1 && pr->source_tile_height >= 1, NULL);
987 if (pr->source_tiles_cache_size < 4) pr->source_tiles_cache_size = 4;
989 count = g_list_length(pr->source_tiles);
990 if (count >= pr->source_tiles_cache_size)
994 work = g_list_last(pr->source_tiles);
995 while (work && count >= pr->source_tiles_cache_size)
1002 if (!pr_source_tile_visible(pr, needle))
1004 pr->source_tiles = g_list_remove(pr->source_tiles, needle);
1006 if (pr->func_tile_dispose)
1008 pr->func_tile_dispose(pr, needle->x, needle->y,
1009 pr->source_tile_width, pr->source_tile_height,
1010 needle->pixbuf, pr->func_tile_data);
1019 pr_source_tile_free(needle);
1029 st = g_new0(SourceTile, 1);
1030 st->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8,
1031 pr->source_tile_width, pr->source_tile_height);
1034 st->x = ROUND_DOWN(x, pr->source_tile_width);
1035 st->y = ROUND_DOWN(y, pr->source_tile_height);
1038 pr->source_tiles = g_list_prepend(pr->source_tiles, st);
1043 static SourceTile *pr_source_tile_request(PixbufRenderer *pr, gint x, gint y)
1047 st = pr_source_tile_new(pr, x, y);
1048 if (!st) return NULL;
1050 if (pr->func_tile_request &&
1051 pr->func_tile_request(pr, st->x, st->y,
1052 pr->source_tile_width, pr->source_tile_height, st->pixbuf, pr->func_tile_data))
1057 pr->renderer->invalidate_region(pr->renderer, st->x * pr->scale, st->y * pr->scale,
1058 pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
1059 if (pr->renderer2) pr->renderer2->invalidate_region(pr->renderer2, st->x * pr->scale, st->y * pr->scale,
1060 pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
1064 static SourceTile *pr_source_tile_find(PixbufRenderer *pr, gint x, gint y)
1068 work = pr->source_tiles;
1071 SourceTile *st = work->data;
1073 if (x >= st->x && x < st->x + pr->source_tile_width &&
1074 y >= st->y && y < st->y + pr->source_tile_height)
1076 if (work != pr->source_tiles)
1078 pr->source_tiles = g_list_remove_link(pr->source_tiles, work);
1079 pr->source_tiles = g_list_concat(work, pr->source_tiles);
1090 GList *pr_source_tile_compute_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h, gboolean request)
1098 if (w > pr->image_width) w = pr->image_width;
1099 if (h > pr->image_height) h = pr->image_height;
1101 sx = ROUND_DOWN(x, pr->source_tile_width);
1102 sy = ROUND_DOWN(y, pr->source_tile_height);
1104 for (x1 = sx; x1 < x + w; x1+= pr->source_tile_width)
1106 for (y1 = sy; y1 < y + h; y1 += pr->source_tile_height)
1110 st = pr_source_tile_find(pr, x1, y1);
1111 if (!st && request) st = pr_source_tile_request(pr, x1, y1);
1113 if (st) list = g_list_prepend(list, st);
1117 return g_list_reverse(list);
1120 static void pr_source_tile_changed(PixbufRenderer *pr, gint x, gint y, gint width, gint height)
1124 if (width < 1 || height < 1) return;
1126 work = pr->source_tiles;
1130 gint rx, ry, rw, rh;
1135 if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1136 x, y, width, height,
1137 &rx, &ry, &rw, &rh))
1141 pixbuf = gdk_pixbuf_new_subpixbuf(st->pixbuf, rx - st->x, ry - st->y, rw, rh);
1142 if (pr->func_tile_request &&
1143 pr->func_tile_request(pr, rx, ry, rw, rh, pixbuf, pr->func_tile_data))
1145 pr->renderer->invalidate_region(pr->renderer, rx * pr->scale, ry * pr->scale,
1146 rw * pr->scale, rh * pr->scale);
1147 if (pr->renderer2) pr->renderer2->invalidate_region(pr->renderer2, rx * pr->scale, ry * pr->scale,
1148 rw * pr->scale, rh * pr->scale);
1150 g_object_unref(pixbuf);
1155 void pixbuf_renderer_set_tiles(PixbufRenderer *pr, gint width, gint height,
1156 gint tile_width, gint tile_height, gint cache_size,
1157 PixbufRendererTileRequestFunc func_request,
1158 PixbufRendererTileDisposeFunc func_dispose,
1162 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1163 g_return_if_fail(tile_width >= 32 && tile_width >= 32);
1164 g_return_if_fail(width >= 32 && height > 32);
1165 g_return_if_fail(func_request != NULL);
1167 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1170 pr_source_tile_unset(pr);
1172 if (cache_size < 4) cache_size = 4;
1174 pr->source_tiles_enabled = TRUE;
1175 pr->source_tiles_cache_size = cache_size;
1176 pr->source_tile_width = tile_width;
1177 pr->source_tile_height = tile_height;
1179 pr->image_width = width;
1180 pr->image_height = height;
1182 pr->func_tile_request = func_request;
1183 pr->func_tile_dispose = func_dispose;
1184 pr->func_tile_data = user_data;
1186 pr_stereo_temp_disable(pr, TRUE);
1187 pr_zoom_sync(pr, zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
1190 void pixbuf_renderer_set_tiles_size(PixbufRenderer *pr, gint width, gint height)
1192 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1193 g_return_if_fail(width >= 32 && height > 32);
1195 if (!pr->source_tiles_enabled) return;
1196 if (pr->image_width == width && pr->image_height == height) return;
1198 pr->image_width = width;
1199 pr->image_height = height;
1201 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
1204 gint pixbuf_renderer_get_tiles(PixbufRenderer *pr)
1206 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
1208 return pr->source_tiles_enabled;
1211 static void pr_zoom_adjust_real(PixbufRenderer *pr, gdouble increment,
1212 PrZoomFlags flags, gint x, gint y)
1214 gdouble zoom = pr->zoom;
1216 if (increment == 0.0) return;
1220 if (pr->scale < 1.0)
1222 zoom = 0.0 - 1.0 / pr->scale;
1230 if (increment < 0.0)
1232 if (zoom >= 1.0 && zoom + increment < 1.0)
1234 zoom = zoom + increment - 2.0;
1238 zoom = zoom + increment;
1243 if (zoom <= -1.0 && zoom + increment > -1.0)
1245 zoom = zoom + increment + 2.0;
1249 zoom = zoom + increment;
1253 pr_zoom_sync(pr, zoom, flags, x, y);
1258 *-------------------------------------------------------------------
1260 *-------------------------------------------------------------------
1263 static void pr_update_signal(PixbufRenderer *pr)
1265 DEBUG_1("%s pixbuf renderer updated - started drawing %p, img: %dx%d", get_exec_time(), pr, pr->image_width, pr->image_height);
1266 pr->debug_updated = TRUE;
1269 static void pr_zoom_signal(PixbufRenderer *pr)
1271 g_signal_emit(pr, signals[SIGNAL_ZOOM], 0, pr->zoom);
1274 static void pr_clicked_signal(PixbufRenderer *pr, GdkEventButton *bevent)
1276 g_signal_emit(pr, signals[SIGNAL_CLICKED], 0, bevent);
1279 static void pr_scroll_notify_signal(PixbufRenderer *pr)
1281 g_signal_emit(pr, signals[SIGNAL_SCROLL_NOTIFY], 0);
1284 void pr_render_complete_signal(PixbufRenderer *pr)
1288 g_signal_emit(pr, signals[SIGNAL_RENDER_COMPLETE], 0);
1289 g_object_set(G_OBJECT(pr), "complete", TRUE, NULL);
1291 if (pr->debug_updated)
1293 DEBUG_1("%s pixbuf renderer done %p", get_exec_time(), pr);
1294 pr->debug_updated = FALSE;
1298 static void pr_drag_signal(PixbufRenderer *pr, GdkEventButton *bevent)
1300 g_signal_emit(pr, signals[SIGNAL_DRAG], 0, bevent);
1303 static void pr_update_pixel_signal(PixbufRenderer *pr)
1305 g_signal_emit(pr, signals[SIGNAL_UPDATE_PIXEL], 0);
1309 *-------------------------------------------------------------------
1311 *-------------------------------------------------------------------
1315 void pr_tile_coords_map_orientation(gint orientation,
1316 gdouble tile_x, gdouble tile_y, /* coordinates of the tile */
1317 gdouble image_w, gdouble image_h,
1318 gdouble tile_w, gdouble tile_h,
1319 gdouble *res_x, gdouble *res_y)
1323 switch (orientation)
1325 case EXIF_ORIENTATION_TOP_LEFT:
1326 /* normal -- nothing to do */
1328 case EXIF_ORIENTATION_TOP_RIGHT:
1330 *res_x = image_w - tile_x - tile_w;
1332 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1334 *res_x = image_w - tile_x - tile_w;
1335 *res_y = image_h - tile_y - tile_h;
1337 case EXIF_ORIENTATION_BOTTOM_LEFT:
1339 *res_y = image_h - tile_y - tile_h;
1341 case EXIF_ORIENTATION_LEFT_TOP:
1345 case EXIF_ORIENTATION_RIGHT_TOP:
1346 /* rotated -90 (270) */
1348 *res_y = image_w - tile_x - tile_w;
1350 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1351 *res_x = image_h - tile_y - tile_h;
1352 *res_y = image_w - tile_x - tile_w;
1354 case EXIF_ORIENTATION_LEFT_BOTTOM:
1356 *res_x = image_h - tile_y - tile_h;
1360 /* The other values are out of range */
1363 // log_printf("tile coord y:%f, ih:%d, th:%f ry:%f\n", tile_y, image_h, tile_h, *res_x);
1366 void pr_tile_region_map_orientation(gint orientation,
1367 gint area_x, gint area_y, /* coordinates of the area inside tile */
1368 gint tile_w, gint tile_h,
1369 gint area_w, gint area_h,
1370 gint *res_x, gint *res_y,
1371 gint *res_w, gint *res_h)
1378 switch (orientation)
1380 case EXIF_ORIENTATION_TOP_LEFT:
1381 /* normal -- nothing to do */
1383 case EXIF_ORIENTATION_TOP_RIGHT:
1385 *res_x = tile_w - area_x - area_w;
1387 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1389 *res_x = tile_w - area_x - area_w;
1390 *res_y = tile_h - area_y - area_h;
1392 case EXIF_ORIENTATION_BOTTOM_LEFT:
1394 *res_y = tile_h - area_y - area_h;
1396 case EXIF_ORIENTATION_LEFT_TOP:
1402 case EXIF_ORIENTATION_RIGHT_TOP:
1403 /* rotated -90 (270) */
1405 *res_y = tile_w - area_x - area_w;
1409 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1410 *res_x = tile_h - area_y - area_h;
1411 *res_y = tile_w - area_x - area_w;
1415 case EXIF_ORIENTATION_LEFT_BOTTOM:
1417 *res_x = tile_h - area_y - area_h;
1423 /* The other values are out of range */
1426 // log_printf("inside y:%d, th:%d, ah:%d ry:%d\n", area_y, tile_h, area_h, *res_x);
1429 void pr_coords_map_orientation_reverse(gint orientation,
1430 gint area_x, gint area_y,
1431 gint tile_w, gint tile_h,
1432 gint area_w, gint area_h,
1433 gint *res_x, gint *res_y,
1434 gint *res_w, gint *res_h)
1441 switch (orientation)
1443 case EXIF_ORIENTATION_TOP_LEFT:
1444 /* normal -- nothing to do */
1446 case EXIF_ORIENTATION_TOP_RIGHT:
1448 *res_x = tile_w - area_x - area_w;
1450 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1452 *res_x = tile_w - area_x - area_w;
1453 *res_y = tile_h - area_y - area_h;
1455 case EXIF_ORIENTATION_BOTTOM_LEFT:
1457 *res_y = tile_h - area_y - area_h;
1459 case EXIF_ORIENTATION_LEFT_TOP:
1465 case EXIF_ORIENTATION_RIGHT_TOP:
1466 /* rotated -90 (270) */
1467 *res_x = tile_w - area_y - area_h;
1472 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1473 *res_x = tile_w - area_y - area_h;
1474 *res_y = tile_h - area_x - area_w;
1478 case EXIF_ORIENTATION_LEFT_BOTTOM:
1481 *res_y = tile_h - area_x - area_w;
1486 /* The other values are out of range */
1493 static void pixbuf_renderer_sync_scroll_center(PixbufRenderer *pr)
1496 if (!pr->width || !pr->height) return;
1499 * Update norm_center only if the image is bigger than the window.
1500 * With this condition the stored center survives also a temporary display
1501 * of the "broken image" icon.
1504 if (pr->width > pr->viewport_width)
1506 src_x = pr->x_scroll + pr->vis_width / 2;
1507 pr->norm_center_x = (gdouble)src_x / pr->width;
1510 if (pr->height > pr->viewport_height)
1512 src_y = pr->y_scroll + pr->vis_height / 2;
1513 pr->norm_center_y = (gdouble)src_y / pr->height;
1518 static gboolean pr_scroll_clamp(PixbufRenderer *pr)
1523 if (pr->zoom == 0.0)
1531 old_xs = pr->x_scroll;
1532 old_ys = pr->y_scroll;
1534 if (pr->x_offset > 0)
1540 pr->x_scroll = CLAMP(pr->x_scroll, 0, pr->width - pr->vis_width);
1543 if (pr->y_offset > 0)
1549 pr->y_scroll = CLAMP(pr->y_scroll, 0, pr->height - pr->vis_height);
1552 pixbuf_renderer_sync_scroll_center(pr);
1554 return (old_xs != pr->x_scroll || old_ys != pr->y_scroll);
1557 static gboolean pr_size_clamp(PixbufRenderer *pr)
1559 gint old_vw, old_vh;
1561 old_vw = pr->vis_width;
1562 old_vh = pr->vis_height;
1564 if (pr->width < pr->viewport_width)
1566 pr->vis_width = pr->width;
1567 pr->x_offset = (pr->viewport_width - pr->width) / 2;
1571 pr->vis_width = pr->viewport_width;
1575 if (pr->height < pr->viewport_height)
1577 pr->vis_height = pr->height;
1578 pr->y_offset = (pr->viewport_height - pr->height) / 2;
1582 pr->vis_height = pr->viewport_height;
1586 pixbuf_renderer_sync_scroll_center(pr);
1588 return (old_vw != pr->vis_width || old_vh != pr->vis_height);
1591 static gboolean pr_zoom_clamp(PixbufRenderer *pr, gdouble zoom,
1596 gboolean force = !!(flags & PR_ZOOM_FORCE);
1597 gboolean new = !!(flags & PR_ZOOM_NEW);
1599 zoom = CLAMP(zoom, pr->zoom_min, pr->zoom_max);
1601 if (pr->zoom == zoom && !force) return FALSE;
1603 w = pr->image_width;
1604 h = pr->image_height;
1606 if (zoom == 0.0 && !pr->pixbuf)
1610 else if (zoom == 0.0)
1616 sizeable = (new && pr_parent_window_sizable(pr));
1620 max_w = gdk_screen_width();
1621 max_h = gdk_screen_height();
1623 if (pr->window_limit)
1625 max_w = max_w * pr->window_limit_size / 100;
1626 max_h = max_h * pr->window_limit_size / 100;
1631 max_w = pr->viewport_width;
1632 max_h = pr->viewport_height;
1635 if ((pr->zoom_expand && !sizeable) || w > max_w || h > max_h)
1637 if ((gdouble)max_w / w > (gdouble)max_h / h / pr->aspect_ratio)
1639 scale = (gdouble)max_h / h / pr->aspect_ratio;
1641 w = w * scale + 0.5;
1642 if (w > max_w) w = max_w;
1646 scale = (gdouble)max_w / w;
1648 h = h * scale * pr->aspect_ratio + 0.5;
1649 if (h > max_h) h = max_h;
1652 if (pr->autofit_limit)
1654 gdouble factor = (gdouble)pr->autofit_limit_size / 100;
1655 w = w * factor + 0.5;
1656 h = h * factor + 0.5;
1657 scale = scale * factor;
1668 else if (zoom > 0.0) /* zoom orig, in */
1672 h = h * scale * pr->aspect_ratio;
1676 scale = 1.0 / (0.0 - zoom);
1678 h = h * scale * pr->aspect_ratio;
1689 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
1690 PrZoomFlags flags, gint px, gint py)
1693 gint old_cx, old_cy;
1694 gboolean center_point = !!(flags & PR_ZOOM_CENTER);
1695 gboolean force = !!(flags & PR_ZOOM_FORCE);
1696 gboolean new = !!(flags & PR_ZOOM_NEW);
1697 gboolean lazy = !!(flags & PR_ZOOM_LAZY);
1698 PrZoomFlags clamp_flags = flags;
1699 gdouble old_center_x = pr->norm_center_x;
1700 gdouble old_center_y = pr->norm_center_y;
1702 old_scale = pr->scale;
1705 px = CLAMP(px, 0, pr->width);
1706 py = CLAMP(py, 0, pr->height);
1707 old_cx = pr->x_scroll + (px - pr->x_offset);
1708 old_cy = pr->y_scroll + (py - pr->y_offset);
1713 old_cx = pr->x_scroll + pr->vis_width / 2;
1714 old_cy = pr->y_scroll + pr->vis_height / 2;
1717 if (force) clamp_flags |= PR_ZOOM_INVALIDATE;
1718 if (!pr_zoom_clamp(pr, zoom, clamp_flags)) return;
1720 (void) pr_size_clamp(pr);
1721 (void) pr_parent_window_resize(pr, pr->width, pr->height);
1725 switch (pr->scroll_reset)
1727 case PR_SCROLL_RESET_NOCHANGE:
1728 /* maintain old scroll position */
1729 pr->x_scroll = ((gdouble)pr->image_width * old_center_x * pr->scale) - pr->vis_width / 2;
1730 pr->y_scroll = ((gdouble)pr->image_height * old_center_y * pr->scale * pr->aspect_ratio) - pr->vis_height / 2;
1732 case PR_SCROLL_RESET_CENTER:
1733 /* center new image */
1734 pr->x_scroll = ((gdouble)pr->image_width / 2.0 * pr->scale) - pr->vis_width / 2;
1735 pr->y_scroll = ((gdouble)pr->image_height / 2.0 * pr->scale * pr->aspect_ratio) - pr->vis_height / 2;
1737 case PR_SCROLL_RESET_TOPLEFT:
1739 /* reset to upper left */
1747 /* user zoom does not force, so keep visible center point */
1750 pr->x_scroll = old_cx / old_scale * pr->scale - (px - pr->x_offset);
1751 pr->y_scroll = old_cy / old_scale * pr->scale * pr->aspect_ratio - (py - pr->y_offset);
1755 pr->x_scroll = old_cx / old_scale * pr->scale - (pr->vis_width / 2);
1756 pr->y_scroll = old_cy / old_scale * pr->scale * pr->aspect_ratio - (pr->vis_height / 2);
1760 pr_scroll_clamp(pr);
1762 pr->renderer->update_zoom(pr->renderer, lazy);
1763 if (pr->renderer2) pr->renderer2->update_zoom(pr->renderer2, lazy);
1765 pr_scroll_notify_signal(pr);
1767 pr_update_signal(pr);
1770 static void pr_size_sync(PixbufRenderer *pr, gint new_width, gint new_height)
1772 gboolean zoom_changed = FALSE;
1774 gint new_viewport_width = new_width;
1775 gint new_viewport_height = new_height;
1777 if (!pr->stereo_temp_disable)
1779 if (pr->stereo_mode & PR_STEREO_HORIZ)
1781 new_viewport_width = new_width / 2;
1783 else if (pr->stereo_mode & PR_STEREO_VERT)
1785 new_viewport_height = new_height / 2;
1787 else if (pr->stereo_mode & PR_STEREO_FIXED)
1789 new_viewport_width = pr->stereo_fixed_width;
1790 new_viewport_height = pr->stereo_fixed_height;
1794 if (pr->window_width == new_width && pr->window_height == new_height &&
1795 pr->viewport_width == new_viewport_width && pr->viewport_height == new_viewport_height) return;
1797 pr->window_width = new_width;
1798 pr->window_height = new_height;
1799 pr->viewport_width = new_viewport_width;
1800 pr->viewport_height = new_viewport_height;
1802 if (pr->zoom == 0.0)
1804 gdouble old_scale = pr->scale;
1805 pr_zoom_clamp(pr, 0.0, PR_ZOOM_FORCE);
1806 zoom_changed = (old_scale != pr->scale);
1810 pr_scroll_clamp(pr);
1814 pr->renderer->update_zoom(pr->renderer, FALSE);
1815 if (pr->renderer2) pr->renderer2->update_zoom(pr->renderer2, FALSE);
1818 pr->renderer->update_viewport(pr->renderer);
1819 if (pr->renderer2) pr->renderer2->update_viewport(pr->renderer2);
1822 /* ensure scroller remains visible */
1823 if (pr->scroller_overlay != -1)
1825 gboolean update = FALSE;
1827 if (pr->scroller_x > new_width)
1829 pr->scroller_x = new_width;
1830 pr->scroller_xpos = new_width;
1833 if (pr->scroller_y > new_height)
1835 pr->scroller_y = new_height;
1836 pr->scroller_ypos = new_height;
1844 if (pixbuf_renderer_overlay_get(pr, pr->scroller_overlay, &pixbuf, NULL, NULL))
1848 w = gdk_pixbuf_get_width(pixbuf);
1849 h = gdk_pixbuf_get_height(pixbuf);
1850 pixbuf_renderer_overlay_set(pr, pr->scroller_overlay, pixbuf,
1851 pr->scroller_x - w / 2, pr->scroller_y - h / 2);
1856 pr_scroll_notify_signal(pr);
1857 if (zoom_changed) pr_zoom_signal(pr);
1858 pr_update_signal(pr);
1861 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
1863 PixbufRenderer *pr = data;
1865 pr_size_sync(pr, allocation->width, allocation->height);
1869 *-------------------------------------------------------------------
1871 *-------------------------------------------------------------------
1874 void pixbuf_renderer_scroll(PixbufRenderer *pr, gint x, gint y)
1879 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1881 if (!pr->pixbuf && !pr->source_tiles_enabled) return;
1883 old_x = pr->x_scroll;
1884 old_y = pr->y_scroll;
1889 pr_scroll_clamp(pr);
1891 pixbuf_renderer_sync_scroll_center(pr);
1893 if (pr->x_scroll == old_x && pr->y_scroll == old_y) return;
1895 pr_scroll_notify_signal(pr);
1897 x_off = pr->x_scroll - old_x;
1898 y_off = pr->y_scroll - old_y;
1900 pr->renderer->scroll(pr->renderer, x_off, y_off);
1901 if (pr->renderer2) pr->renderer2->scroll(pr->renderer2, x_off, y_off);
1904 void pixbuf_renderer_scroll_to_point(PixbufRenderer *pr, gint x, gint y,
1905 gdouble x_align, gdouble y_align)
1910 x_align = CLAMP(x_align, 0.0, 1.0);
1911 y_align = CLAMP(y_align, 0.0, 1.0);
1913 ax = (gdouble)pr->vis_width * x_align;
1914 ay = (gdouble)pr->vis_height * y_align;
1916 px = (gdouble)x * pr->scale - (pr->x_scroll + ax);
1917 py = (gdouble)y * pr->scale * pr->aspect_ratio - (pr->y_scroll + ay);
1919 pixbuf_renderer_scroll(pr, px, py);
1922 /* get or set coordinates of viewport center in the image, in range 0.0 - 1.0 */
1924 void pixbuf_renderer_get_scroll_center(PixbufRenderer *pr, gdouble *x, gdouble *y)
1926 *x = pr->norm_center_x;
1927 *y = pr->norm_center_y;
1930 void pixbuf_renderer_set_scroll_center(PixbufRenderer *pr, gdouble x, gdouble y)
1932 gdouble dst_x, dst_y;
1934 dst_x = x * pr->width - pr->vis_width / 2 - pr->x_scroll + CLAMP(pr->subpixel_x_scroll, -1.0, 1.0);
1935 dst_y = y * pr->height - pr->vis_height / 2 - pr->y_scroll + CLAMP(pr->subpixel_y_scroll, -1.0, 1.0);
1937 pr->subpixel_x_scroll = dst_x - (gint)dst_x;
1938 pr->subpixel_y_scroll = dst_y - (gint)dst_y;
1940 pixbuf_renderer_scroll(pr, (gint)dst_x, (gint)dst_y);
1944 *-------------------------------------------------------------------
1946 *-------------------------------------------------------------------
1949 static gboolean pr_mouse_motion_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
1954 /* This is a hack, but work far the best, at least for single pointer systems.
1955 * See http://bugzilla.gnome.org/show_bug.cgi?id=587714 for more. */
1957 gdk_window_get_pointer (bevent->window, &x, &y, NULL);
1961 pr = PIXBUF_RENDERER(widget);
1963 if (pr->scroller_id)
1965 pr->scroller_xpos = bevent->x;
1966 pr->scroller_ypos = bevent->y;
1969 pr->x_mouse = bevent->x;
1970 pr->y_mouse = bevent->y;
1971 pr_update_pixel_signal(pr);
1973 if (!pr->in_drag || !gdk_pointer_is_grabbed()) return FALSE;
1975 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
1981 widget_set_cursor(widget, GDK_FLEUR);
1984 if (bevent->state & GDK_CONTROL_MASK)
1986 accel = PR_PAN_SHIFT_MULTIPLIER;
1994 pixbuf_renderer_scroll(pr, (pr->drag_last_x - bevent->x) * accel,
1995 (pr->drag_last_y - bevent->y) * accel);
1997 pr_drag_signal(pr, bevent);
1999 pr->drag_last_x = bevent->x;
2000 pr->drag_last_y = bevent->y;
2002 /* This is recommended by the GTK+ documentation, but does not work properly.
2003 * Use deprecated way until GTK+ gets a solution for correct motion hint handling:
2004 * http://bugzilla.gnome.org/show_bug.cgi?id=587714
2006 /* gdk_event_request_motions (bevent); */
2010 static gboolean pr_leave_notify_cb(GtkWidget *widget, GdkEventCrossing *cevent, gpointer data)
2014 pr = PIXBUF_RENDERER(widget);
2018 pr_update_pixel_signal(pr);
2022 static gboolean pr_mouse_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
2027 pr = PIXBUF_RENDERER(widget);
2029 if (pr->scroller_id) return TRUE;
2031 switch (bevent->button)
2033 case MOUSE_BUTTON_LEFT:
2035 pr->drag_last_x = bevent->x;
2036 pr->drag_last_y = bevent->y;
2038 gdk_pointer_grab(gtk_widget_get_window(widget), FALSE,
2039 GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_RELEASE_MASK,
2040 NULL, NULL, bevent->time);
2041 gtk_grab_add(widget);
2043 case MOUSE_BUTTON_MIDDLE:
2046 case MOUSE_BUTTON_RIGHT:
2047 pr_clicked_signal(pr, bevent);
2053 parent = gtk_widget_get_parent(widget);
2054 if (widget && gtk_widget_get_can_focus(parent))
2056 gtk_widget_grab_focus(parent);
2062 static gboolean pr_mouse_release_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
2066 pr = PIXBUF_RENDERER(widget);
2068 if (pr->scroller_id)
2070 pr_scroller_stop(pr);
2074 if (gdk_pointer_is_grabbed() && gtk_widget_has_grab(GTK_WIDGET(pr)))
2076 gtk_grab_remove(widget);
2077 gdk_pointer_ungrab(bevent->time);
2078 widget_set_cursor(widget, -1);
2081 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
2083 if (bevent->button == MOUSE_BUTTON_LEFT && (bevent->state & GDK_CONTROL_MASK))
2085 pr_scroller_start(pr, bevent->x, bevent->y);
2087 else if (bevent->button == MOUSE_BUTTON_LEFT || bevent->button == MOUSE_BUTTON_MIDDLE)
2089 pr_clicked_signal(pr, bevent);
2093 pr->in_drag = FALSE;
2098 static gboolean pr_mouse_leave_cb(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
2102 pr = PIXBUF_RENDERER(widget);
2104 if (pr->scroller_id)
2106 pr->scroller_xpos = pr->scroller_x;
2107 pr->scroller_ypos = pr->scroller_y;
2108 pr->scroller_xinc = 0;
2109 pr->scroller_yinc = 0;
2115 static void pr_mouse_drag_cb(GtkWidget *widget, GdkDragContext *context, gpointer data)
2119 pr = PIXBUF_RENDERER(widget);
2121 pr->drag_moved = PR_DRAG_SCROLL_THRESHHOLD;
2124 static void pr_signals_connect(PixbufRenderer *pr)
2126 g_signal_connect(G_OBJECT(pr), "motion_notify_event",
2127 G_CALLBACK(pr_mouse_motion_cb), pr);
2128 g_signal_connect(G_OBJECT(pr), "button_press_event",
2129 G_CALLBACK(pr_mouse_press_cb), pr);
2130 g_signal_connect(G_OBJECT(pr), "button_release_event",
2131 G_CALLBACK(pr_mouse_release_cb), pr);
2132 g_signal_connect(G_OBJECT(pr), "leave_notify_event",
2133 G_CALLBACK(pr_mouse_leave_cb), pr);
2134 g_signal_connect(G_OBJECT(pr), "leave_notify_event",
2135 G_CALLBACK(pr_leave_notify_cb), pr);
2137 gtk_widget_set_events(GTK_WIDGET(pr), GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
2138 GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_SCROLL_MASK |
2139 GDK_LEAVE_NOTIFY_MASK);
2141 g_signal_connect(G_OBJECT(pr), "drag_begin",
2142 G_CALLBACK(pr_mouse_drag_cb), pr);
2147 *-------------------------------------------------------------------
2149 *-------------------------------------------------------------------
2152 #define COLOR_BYTES 3 /* rgb */
2153 static void pr_create_anaglyph_RC(GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h)
2156 guchar *s_pix, *d_pix;
2161 srs = gdk_pixbuf_get_rowstride(right);
2162 s_pix = gdk_pixbuf_get_pixels(right);
2163 spi = s_pix + (x * COLOR_BYTES);
2165 drs = gdk_pixbuf_get_rowstride(pixbuf);
2166 d_pix = gdk_pixbuf_get_pixels(pixbuf);
2167 dpi = d_pix + x * COLOR_BYTES;
2169 for (i = y; i < y + h; i++)
2171 sp = spi + (i * srs);
2172 dp = dpi + (i * drs);
2173 for (j = 0; j < w; j++)
2175 *dp = *sp; /* copy red channel */
2182 static void pr_create_anaglyph_gray(GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h)
2185 guchar *s_pix, *d_pix;
2189 const double gc[3] = {0.299, 0.587, 0.114};
2191 srs = gdk_pixbuf_get_rowstride(right);
2192 s_pix = gdk_pixbuf_get_pixels(right);
2193 spi = s_pix + (x * COLOR_BYTES);
2195 drs = gdk_pixbuf_get_rowstride(pixbuf);
2196 d_pix = gdk_pixbuf_get_pixels(pixbuf);
2197 dpi = d_pix + x * COLOR_BYTES;
2199 for (i = y; i < y + h; i++)
2201 sp = spi + (i * srs);
2202 dp = dpi + (i * drs);
2203 for (j = 0; j < w; j++)
2205 guchar g1 = dp[0] * gc[0] + dp[1] * gc[1] + dp[2] * gc[2];
2206 guchar g2 = sp[0] * gc[0] + sp[1] * gc[1] + sp[2] * gc[2];
2207 dp[0] = g2; /* red channel from sp */
2208 dp[1] = g1; /* green and blue from dp */
2216 const double pr_dubois_matrix[3][6] = {
2217 { 0.456, 0.500, 0.176, -0.043, -0.088, -0.002},
2218 {-0.040, -0.038, -0.016, 0.378, 0.734, -0.018},
2219 {-0.015, -0.021, -0.005, -0.072, -0.113, 1.226}
2222 static void pr_create_anaglyph_dubois(GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h)
2225 guchar *s_pix, *d_pix;
2230 srs = gdk_pixbuf_get_rowstride(right);
2231 s_pix = gdk_pixbuf_get_pixels(right);
2232 spi = s_pix + (x * COLOR_BYTES);
2234 drs = gdk_pixbuf_get_rowstride(pixbuf);
2235 d_pix = gdk_pixbuf_get_pixels(pixbuf);
2236 dpi = d_pix + x * COLOR_BYTES;
2238 for (i = y; i < y + h; i++)
2240 sp = spi + (i * srs);
2241 dp = dpi + (i * drs);
2242 for (j = 0; j < w; j++)
2245 for (k = 0; k < 3; k++)
2247 const double *m = pr_dubois_matrix[k];
2248 res[k] = sp[0] * m[0] + sp[1] * m[1] + sp[2] * m[2] + dp[0] * m[3] + dp[1] * m[4] + dp[2] * m[5];
2249 if (res[k] < 0.0) res[k] = 0;
2250 if (res[k] > 255.0) res[k] = 255.0;
2261 void pr_create_anaglyph(guint mode, GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h)
2263 if (mode & PR_STEREO_ANAGLYPH_RC)
2264 pr_create_anaglyph_RC(pixbuf, right, x, y, w, h);
2265 else if (mode & PR_STEREO_ANAGLYPH_GRAY)
2266 pr_create_anaglyph_gray(pixbuf, right, x, y, w, h);
2267 else if (mode & PR_STEREO_ANAGLYPH_DB)
2268 pr_create_anaglyph_dubois(pixbuf, right, x, y, w, h);
2272 *-------------------------------------------------------------------
2274 *-------------------------------------------------------------------
2276 static void pr_pixbuf_size_sync(PixbufRenderer *pr)
2278 pr->stereo_pixbuf_offset_left = 0;
2279 pr->stereo_pixbuf_offset_right = 0;
2280 if (!pr->pixbuf) return;
2281 switch (pr->orientation)
2283 case EXIF_ORIENTATION_LEFT_TOP:
2284 case EXIF_ORIENTATION_RIGHT_TOP:
2285 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2286 case EXIF_ORIENTATION_LEFT_BOTTOM:
2287 pr->image_width = gdk_pixbuf_get_height(pr->pixbuf);
2288 pr->image_height = gdk_pixbuf_get_width(pr->pixbuf);
2289 if (pr->stereo_data == STEREO_PIXBUF_SBS)
2291 pr->image_height /= 2;
2292 pr->stereo_pixbuf_offset_right = pr->image_height;
2294 else if (pr->stereo_data == STEREO_PIXBUF_CROSS)
2296 pr->image_height /= 2;
2297 pr->stereo_pixbuf_offset_left = pr->image_height;
2302 pr->image_width = gdk_pixbuf_get_width(pr->pixbuf);
2303 pr->image_height = gdk_pixbuf_get_height(pr->pixbuf);
2304 if (pr->stereo_data == STEREO_PIXBUF_SBS)
2306 pr->image_width /= 2;
2307 pr->stereo_pixbuf_offset_right = pr->image_width;
2309 else if (pr->stereo_data == STEREO_PIXBUF_CROSS)
2311 pr->image_width /= 2;
2312 pr->stereo_pixbuf_offset_left = pr->image_width;
2317 static void pr_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, PrZoomFlags flags)
2319 if (pixbuf) g_object_ref(pixbuf);
2320 if (pr->pixbuf) g_object_unref(pr->pixbuf);
2321 pr->pixbuf = pixbuf;
2325 /* no pixbuf so just clear the window */
2326 pr->image_width = 0;
2327 pr->image_height = 0;
2329 pr->zoom = zoom; /* don't throw away the zoom value, it is set by pixbuf_renderer_move, among others,
2330 and used for pixbuf_renderer_zoom_get */
2332 pr->renderer->update_pixbuf(pr->renderer, flags & PR_ZOOM_LAZY);
2333 if (pr->renderer2) pr->renderer2->update_pixbuf(pr->renderer2, flags & PR_ZOOM_LAZY);
2335 pr_update_signal(pr);
2340 if (pr->stereo_mode & PR_STEREO_TEMP_DISABLE)
2342 gint disable = !pr->pixbuf || ! pr->stereo_data;
2343 pr_stereo_temp_disable(pr, disable);
2346 pr_pixbuf_size_sync(pr);
2347 pr->renderer->update_pixbuf(pr->renderer, flags & PR_ZOOM_LAZY);
2348 if (pr->renderer2) pr->renderer2->update_pixbuf(pr->renderer2, flags & PR_ZOOM_LAZY);
2349 pr_zoom_sync(pr, zoom, flags | PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
2352 void pixbuf_renderer_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom)
2354 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2356 pr_source_tile_unset(pr);
2358 pr_set_pixbuf(pr, pixbuf, zoom, 0);
2360 pr_update_signal(pr);
2363 void pixbuf_renderer_set_pixbuf_lazy(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, gint orientation, StereoPixbufData stereo_data)
2365 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2367 pr_source_tile_unset(pr);
2369 pr->orientation = orientation;
2370 pr->stereo_data = stereo_data;
2371 pr_set_pixbuf(pr, pixbuf, zoom, PR_ZOOM_LAZY);
2373 pr_update_signal(pr);
2376 GdkPixbuf *pixbuf_renderer_get_pixbuf(PixbufRenderer *pr)
2378 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
2383 void pixbuf_renderer_set_orientation(PixbufRenderer *pr, gint orientation)
2385 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2387 pr->orientation = orientation;
2389 pr_pixbuf_size_sync(pr);
2390 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
2393 gint pixbuf_renderer_get_orientation(PixbufRenderer *pr)
2396 return pr->orientation;
2399 void pixbuf_renderer_set_stereo_data(PixbufRenderer *pr, StereoPixbufData stereo_data)
2401 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2402 if (pr->stereo_data == stereo_data) return;
2405 pr->stereo_data = stereo_data;
2407 if (pr->stereo_mode & PR_STEREO_TEMP_DISABLE)
2409 gint disable = !pr->pixbuf || ! pr->stereo_data;
2410 pr_stereo_temp_disable(pr, disable);
2412 pr_pixbuf_size_sync(pr);
2413 pr->renderer->update_pixbuf(pr->renderer, FALSE);
2414 if (pr->renderer2) pr->renderer2->update_pixbuf(pr->renderer2, FALSE);
2415 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
2418 void pixbuf_renderer_set_post_process_func(PixbufRenderer *pr, PixbufRendererPostProcessFunc func, gpointer user_data, gboolean slow)
2420 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2422 pr->func_post_process = func;
2423 pr->post_process_user_data = user_data;
2424 pr->post_process_slow = func && slow;
2429 void pixbuf_renderer_move(PixbufRenderer *pr, PixbufRenderer *source)
2432 PixbufRendererScrollResetType scroll_reset;
2434 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2435 g_return_if_fail(IS_PIXBUF_RENDERER(source));
2437 if (pr == source) return;
2439 object = G_OBJECT(pr);
2441 g_object_set(object, "zoom_min", source->zoom_min, NULL);
2442 g_object_set(object, "zoom_max", source->zoom_max, NULL);
2443 g_object_set(object, "loading", source->loading, NULL);
2445 pr->complete = source->complete;
2447 pr->x_scroll = source->x_scroll;
2448 pr->y_scroll = source->y_scroll;
2449 pr->x_mouse = source->x_mouse;
2450 pr->y_mouse = source->y_mouse;
2452 scroll_reset = pr->scroll_reset;
2453 pr->scroll_reset = PR_SCROLL_RESET_NOCHANGE;
2455 pr->func_post_process = source->func_post_process;
2456 pr->post_process_user_data = source->post_process_user_data;
2457 pr->post_process_slow = source->post_process_slow;
2458 pr->orientation = source->orientation;
2459 pr->stereo_data = source->stereo_data;
2461 if (source->source_tiles_enabled)
2463 pr_source_tile_unset(pr);
2465 pr->source_tiles_enabled = source->source_tiles_enabled;
2466 pr->source_tiles_cache_size = source->source_tiles_cache_size;
2467 pr->source_tile_width = source->source_tile_width;
2468 pr->source_tile_height = source->source_tile_height;
2469 pr->image_width = source->image_width;
2470 pr->image_height = source->image_height;
2472 pr->func_tile_request = source->func_tile_request;
2473 pr->func_tile_dispose = source->func_tile_dispose;
2474 pr->func_tile_data = source->func_tile_data;
2476 pr->source_tiles = source->source_tiles;
2477 source->source_tiles = NULL;
2479 pr_zoom_sync(pr, source->zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
2483 pixbuf_renderer_set_pixbuf(pr, source->pixbuf, source->zoom);
2486 pr->scroll_reset = scroll_reset;
2488 pixbuf_renderer_set_pixbuf(source, NULL, source->zoom);
2491 void pixbuf_renderer_copy(PixbufRenderer *pr, PixbufRenderer *source)
2494 PixbufRendererScrollResetType scroll_reset;
2496 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2497 g_return_if_fail(IS_PIXBUF_RENDERER(source));
2499 if (pr == source) return;
2501 object = G_OBJECT(pr);
2503 g_object_set(object, "zoom_min", source->zoom_min, NULL);
2504 g_object_set(object, "zoom_max", source->zoom_max, NULL);
2505 g_object_set(object, "loading", source->loading, NULL);
2507 pr->complete = source->complete;
2509 pr->x_scroll = source->x_scroll;
2510 pr->y_scroll = source->y_scroll;
2511 pr->x_mouse = source->x_mouse;
2512 pr->y_mouse = source->y_mouse;
2514 scroll_reset = pr->scroll_reset;
2515 pr->scroll_reset = PR_SCROLL_RESET_NOCHANGE;
2517 pr->orientation = source->orientation;
2518 pr->stereo_data = source->stereo_data;
2520 if (source->source_tiles_enabled)
2522 pr->source_tiles_enabled = source->source_tiles_enabled;
2523 pr->source_tiles_cache_size = source->source_tiles_cache_size;
2524 pr->source_tile_width = source->source_tile_width;
2525 pr->source_tile_height = source->source_tile_height;
2526 pr->image_width = source->image_width;
2527 pr->image_height = source->image_height;
2529 pr->func_tile_request = source->func_tile_request;
2530 pr->func_tile_dispose = source->func_tile_dispose;
2531 pr->func_tile_data = source->func_tile_data;
2533 pr->source_tiles = source->source_tiles;
2534 source->source_tiles = NULL;
2536 pr_zoom_sync(pr, source->zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
2540 pixbuf_renderer_set_pixbuf(pr, source->pixbuf, source->zoom);
2543 pr->scroll_reset = scroll_reset;
2546 void pixbuf_renderer_area_changed(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
2548 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2550 if (pr->source_tiles_enabled)
2552 pr_source_tile_changed(pr, x, y, w, h);
2555 pr->renderer->area_changed(pr->renderer, x, y, w, h);
2556 if (pr->renderer2) pr->renderer2->area_changed(pr->renderer2, x, y, w, h);
2559 void pixbuf_renderer_zoom_adjust(PixbufRenderer *pr, gdouble increment)
2561 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2563 pr_zoom_adjust_real(pr, increment, PR_ZOOM_NONE, 0, 0);
2566 void pixbuf_renderer_zoom_adjust_at_point(PixbufRenderer *pr, gdouble increment, gint x, gint y)
2568 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2570 pr_zoom_adjust_real(pr, increment, PR_ZOOM_CENTER, x, y);
2573 void pixbuf_renderer_zoom_set(PixbufRenderer *pr, gdouble zoom)
2575 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2577 pr_zoom_sync(pr, zoom, PR_ZOOM_NONE, 0, 0);
2580 gdouble pixbuf_renderer_zoom_get(PixbufRenderer *pr)
2582 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
2587 gdouble pixbuf_renderer_zoom_get_scale(PixbufRenderer *pr)
2589 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
2594 void pixbuf_renderer_zoom_set_limits(PixbufRenderer *pr, gdouble min, gdouble max)
2596 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2598 if (min > 1.0 || max < 1.0) return;
2599 if (min < 1.0 && min > -1.0) return;
2600 if (min < -200.0 || max > 200.0) return;
2602 if (pr->zoom_min != min)
2605 g_object_notify(G_OBJECT(pr), "zoom_min");
2607 if (pr->zoom_max != max)
2610 g_object_notify(G_OBJECT(pr), "zoom_max");
2614 static void pr_stereo_set(PixbufRenderer *pr)
2616 if (!pr->renderer) pr->renderer = pr_backend_renderer_new(pr);
2618 pr->renderer->stereo_set(pr->renderer, pr->stereo_mode & ~PR_STEREO_MIRROR_RIGHT & ~PR_STEREO_FLIP_RIGHT);
2620 if (pr->stereo_mode & (PR_STEREO_HORIZ | PR_STEREO_VERT | PR_STEREO_FIXED))
2622 if (!pr->renderer2) pr->renderer2 = pr_backend_renderer_new(pr);
2623 pr->renderer2->stereo_set(pr->renderer2, (pr->stereo_mode & ~PR_STEREO_MIRROR_LEFT & ~PR_STEREO_FLIP_LEFT) | PR_STEREO_RIGHT);
2627 if (pr->renderer2) pr->renderer2->free(pr->renderer2);
2628 pr->renderer2 = NULL;
2630 if (pr->stereo_mode & PR_STEREO_HALF)
2632 if (pr->stereo_mode & PR_STEREO_HORIZ) pr->aspect_ratio = 2.0;
2633 else if (pr->stereo_mode & PR_STEREO_VERT) pr->aspect_ratio = 0.5;
2634 else pr->aspect_ratio = 1.0;
2638 pr->aspect_ratio = 1.0;
2642 void pixbuf_renderer_stereo_set(PixbufRenderer *pr, gint stereo_mode)
2644 gboolean redraw = !(pr->stereo_mode == stereo_mode) || pr->stereo_temp_disable;
2645 pr->stereo_mode = stereo_mode;
2646 if ((stereo_mode & PR_STEREO_TEMP_DISABLE) && pr->stereo_temp_disable) return;
2648 pr->stereo_temp_disable = FALSE;
2654 pr_size_sync(pr, pr->window_width, pr->window_height); /* recalculate new viewport */
2655 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
2659 void pixbuf_renderer_stereo_fixed_set(PixbufRenderer *pr, gint width, gint height, gint x1, gint y1, gint x2, gint y2)
2661 pr->stereo_fixed_width = width;
2662 pr->stereo_fixed_height = height;
2663 pr->stereo_fixed_x_left = x1;
2664 pr->stereo_fixed_y_left = y1;
2665 pr->stereo_fixed_x_right = x2;
2666 pr->stereo_fixed_y_right = y2;
2669 gint pixbuf_renderer_stereo_get(PixbufRenderer *pr)
2671 return pr->stereo_mode;
2674 static void pr_stereo_temp_disable(PixbufRenderer *pr, gboolean disable)
2676 if (pr->stereo_temp_disable == disable) return;
2677 pr->stereo_temp_disable = disable;
2680 if (!pr->renderer) pr->renderer = pr_backend_renderer_new(pr);
2681 pr->renderer->stereo_set(pr->renderer, PR_STEREO_NONE);
2682 if (pr->renderer2) pr->renderer2->free(pr->renderer2);
2683 pr->renderer2 = NULL;
2684 pr->aspect_ratio = 1.0;
2690 pr_size_sync(pr, pr->window_width, pr->window_height); /* recalculate new viewport */
2693 gboolean pixbuf_renderer_get_pixel_colors(PixbufRenderer *pr, gint x_pixel, gint y_pixel,
2694 gint *r_mouse, gint *g_mouse, gint *b_mouse)
2696 GdkPixbuf *pb = pr->pixbuf;
2699 gint map_x, map_y, map_w, map_h;
2701 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2702 g_return_val_if_fail(r_mouse != NULL && g_mouse != NULL && b_mouse != NULL, FALSE);
2704 if (!pr->pixbuf && !pr->source_tiles_enabled)
2712 if (!pb) return FALSE;
2714 pr_tile_region_map_orientation(pr->orientation,
2716 pr->image_width, pr->image_height,
2717 1, 1, /*single pixel */
2721 if (map_x < 0 || map_x > gdk_pixbuf_get_width(pr->pixbuf) - 1) return FALSE;
2722 if (map_y < 0 || map_y > gdk_pixbuf_get_height(pr->pixbuf) - 1) return FALSE;
2724 p_alpha = gdk_pixbuf_get_has_alpha(pb);
2725 prs = gdk_pixbuf_get_rowstride(pb);
2726 p_pix = gdk_pixbuf_get_pixels(pb);
2728 pp = p_pix + map_y * prs + (map_x * (p_alpha ? 4 : 3));
2738 gboolean pixbuf_renderer_get_mouse_position(PixbufRenderer *pr, gint *x_pixel_return, gint *y_pixel_return)
2740 gint x_pixel, y_pixel, x_pixel_clamped, y_pixel_clamped;
2742 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2743 g_return_val_if_fail(x_pixel_return != NULL && y_pixel_return != NULL, FALSE);
2745 if (!pr->pixbuf && !pr->source_tiles_enabled)
2747 *x_pixel_return = -1;
2748 *y_pixel_return = -1;
2752 x_pixel = floor((gdouble)(pr->x_mouse - pr->x_offset + pr->x_scroll) / pr->scale);
2753 y_pixel = floor((gdouble)(pr->y_mouse - pr->y_offset + pr->y_scroll) / pr->scale / pr->aspect_ratio);
2754 x_pixel_clamped = CLAMP(x_pixel, 0, pr->image_width - 1);
2755 y_pixel_clamped = CLAMP(y_pixel, 0, pr->image_height - 1);
2757 if(x_pixel != x_pixel_clamped || y_pixel != y_pixel_clamped)
2759 /* mouse is not on pr */
2760 x_pixel = y_pixel = -1;
2763 *x_pixel_return = x_pixel;
2764 *y_pixel_return = y_pixel;
2769 gboolean pixbuf_renderer_get_image_size(PixbufRenderer *pr, gint *width, gint *height)
2771 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2772 g_return_val_if_fail(width != NULL && height != NULL, FALSE);
2774 if (!pr->pixbuf && !pr->source_tiles_enabled && (!pr->image_width || !pr->image_height))
2781 *width = pr->image_width;
2782 *height = pr->image_height;
2786 gboolean pixbuf_renderer_get_scaled_size(PixbufRenderer *pr, gint *width, gint *height)
2788 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2789 g_return_val_if_fail(width != NULL && height != NULL, FALSE);
2791 if (!pr->pixbuf && !pr->source_tiles_enabled && (!pr->image_width || !pr->image_height))
2799 *height = pr->height;
2803 gboolean pixbuf_renderer_get_visible_rect(PixbufRenderer *pr, GdkRectangle *rect)
2805 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2806 g_return_val_if_fail(rect != NULL, FALSE);
2808 if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
2818 rect->x = (gint)((gdouble)pr->x_scroll / pr->scale);
2819 rect->y = (gint)((gdouble)pr->y_scroll / pr->scale / pr->aspect_ratio);
2820 rect->width = (gint)((gdouble)pr->vis_width / pr->scale);
2821 rect->height = (gint)((gdouble)pr->vis_height / pr->scale / pr->aspect_ratio);
2825 gboolean pixbuf_renderer_get_virtual_rect(PixbufRenderer *pr, GdkRectangle *rect)
2827 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2828 g_return_val_if_fail(rect != NULL, FALSE);
2830 if ((!pr->pixbuf && !pr->source_tiles_enabled))
2839 rect->x = pr->x_scroll;
2840 rect->y = pr->y_scroll;
2841 rect->width = pr->vis_width;
2842 rect->height = pr->vis_height;
2846 void pixbuf_renderer_set_size_early(PixbufRenderer *pr, guint width, guint height)
2849 /* FIXME: this function does not consider the image orientation,
2850 so it probably only breaks something */
2854 zoom = pixbuf_renderer_zoom_get(pr);
2855 pr->image_width = width;
2856 pr->image_height = height;
2858 pr_zoom_clamp(pr, zoom, PR_ZOOM_FORCE, NULL);
2863 //pr->width = width;
2864 //pr->height = height;
2868 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */