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!
19 #include "pixbuf-renderer.h"
20 #include "renderer-tiles.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,
94 PROP_CACHE_SIZE_DISPLAY,
95 PROP_CACHE_SIZE_TILES,
98 PROP_WINDOW_LIMIT_VALUE,
100 PROP_AUTOFIT_LIMIT_VALUE
105 PR_ZOOM_FORCE = 1 << 0,
106 PR_ZOOM_NEW = 1 << 1,
107 PR_ZOOM_CENTER = 1 << 2,
108 PR_ZOOM_INVALIDATE = 1 << 3,
109 PR_ZOOM_LAZY = 1 << 4 /* wait with redraw for pixbuf_renderer_area_changed */
112 static guint signals[SIGNAL_COUNT] = { 0 };
113 static GtkEventBoxClass *parent_class = NULL;
117 static void pixbuf_renderer_class_init(PixbufRendererClass *class);
118 static void pixbuf_renderer_init(PixbufRenderer *pr);
119 static void pixbuf_renderer_finalize(GObject *object);
120 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
121 const GValue *value, GParamSpec *pspec);
122 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
123 GValue *value, GParamSpec *pspec);
124 static gboolean pixbuf_renderer_expose(GtkWidget *widget, GdkEventExpose *event);
126 static void pr_scroller_timer_set(PixbufRenderer *pr, gboolean start);
129 static void pr_source_tile_free_all(PixbufRenderer *pr);
131 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
132 PrZoomFlags flags, gint px, gint py);
134 static void pr_signals_connect(PixbufRenderer *pr);
135 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data);
136 static void pixbuf_renderer_paint(PixbufRenderer *pr, GdkRectangle *area);
137 static void pr_stereo_temp_disable(PixbufRenderer *pr, gboolean disable);
141 *-------------------------------------------------------------------
142 * Pixbuf Renderer object
143 *-------------------------------------------------------------------
146 GType pixbuf_renderer_get_type(void)
148 static GType pixbuf_renderer_type = 0;
150 if (!pixbuf_renderer_type)
152 static const GTypeInfo pixbuf_renderer_info =
154 sizeof(PixbufRendererClass), /* class_size */
155 NULL, /* base_init */
156 NULL, /* base_finalize */
157 (GClassInitFunc)pixbuf_renderer_class_init,
158 NULL, /* class_finalize */
159 NULL, /* class_data */
160 sizeof(PixbufRenderer), /* instance_size */
162 (GInstanceInitFunc)pixbuf_renderer_init, /* instance_init */
163 NULL, /* value_table */
166 pixbuf_renderer_type = g_type_register_static(GTK_TYPE_EVENT_BOX, "PixbufRenderer",
167 &pixbuf_renderer_info, 0);
170 return pixbuf_renderer_type;
173 static void pixbuf_renderer_class_init(PixbufRendererClass *class)
175 GObjectClass *gobject_class = G_OBJECT_CLASS(class);
176 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(class);
178 parent_class = g_type_class_peek_parent(class);
180 gobject_class->set_property = pixbuf_renderer_set_property;
181 gobject_class->get_property = pixbuf_renderer_get_property;
183 gobject_class->finalize = pixbuf_renderer_finalize;
185 widget_class->expose_event = pixbuf_renderer_expose;
187 g_object_class_install_property(gobject_class,
189 g_param_spec_double("zoom_min",
195 G_PARAM_READABLE | G_PARAM_WRITABLE));
197 g_object_class_install_property(gobject_class,
199 g_param_spec_double("zoom_max",
205 G_PARAM_READABLE | G_PARAM_WRITABLE));
207 g_object_class_install_property(gobject_class,
209 g_param_spec_uint("zoom_quality",
215 G_PARAM_READABLE | G_PARAM_WRITABLE));
217 g_object_class_install_property(gobject_class,
219 g_param_spec_boolean("zoom_2pass",
223 G_PARAM_READABLE | G_PARAM_WRITABLE));
225 g_object_class_install_property(gobject_class,
227 g_param_spec_boolean("zoom_expand",
228 "Expand image in autozoom.",
231 G_PARAM_READABLE | G_PARAM_WRITABLE));
233 g_object_class_install_property(gobject_class,
235 g_param_spec_uint("dither_quality",
240 GDK_RGB_DITHER_NORMAL,
241 G_PARAM_READABLE | G_PARAM_WRITABLE));
243 g_object_class_install_property(gobject_class,
245 g_param_spec_uint("scroll_reset",
246 "New image scroll reset",
248 PR_SCROLL_RESET_TOPLEFT,
249 PR_SCROLL_RESET_NOCHANGE,
250 PR_SCROLL_RESET_TOPLEFT,
251 G_PARAM_READABLE | G_PARAM_WRITABLE));
253 g_object_class_install_property(gobject_class,
255 g_param_spec_boolean("delay_flip",
256 "Delay image update",
259 G_PARAM_READABLE | G_PARAM_WRITABLE));
261 g_object_class_install_property(gobject_class,
263 g_param_spec_boolean("loading",
264 "Image actively loading",
267 G_PARAM_READABLE | G_PARAM_WRITABLE));
269 g_object_class_install_property(gobject_class,
271 g_param_spec_boolean("complete",
272 "Image rendering complete",
275 G_PARAM_READABLE | G_PARAM_WRITABLE));
277 g_object_class_install_property(gobject_class,
278 PROP_CACHE_SIZE_DISPLAY,
279 g_param_spec_uint("cache_display",
280 "Display cache size MB",
284 PR_CACHE_SIZE_DEFAULT,
285 G_PARAM_READABLE | G_PARAM_WRITABLE));
287 g_object_class_install_property(gobject_class,
288 PROP_CACHE_SIZE_TILES,
289 g_param_spec_uint("cache_tiles",
291 "Number of tiles to retain in memory at any one time.",
294 PR_CACHE_SIZE_DEFAULT,
295 G_PARAM_READABLE | G_PARAM_WRITABLE));
297 g_object_class_install_property(gobject_class,
299 g_param_spec_boolean("window_fit",
300 "Fit window to image size",
303 G_PARAM_READABLE | G_PARAM_WRITABLE));
305 g_object_class_install_property(gobject_class,
307 g_param_spec_boolean("window_limit",
308 "Limit size of parent window",
311 G_PARAM_READABLE | G_PARAM_WRITABLE));
313 g_object_class_install_property(gobject_class,
314 PROP_WINDOW_LIMIT_VALUE,
315 g_param_spec_uint("window_limit_value",
316 "Size limit of parent window",
321 G_PARAM_READABLE | G_PARAM_WRITABLE));
323 g_object_class_install_property(gobject_class,
325 g_param_spec_boolean("autofit_limit",
326 "Limit size of image when autofitting",
329 G_PARAM_READABLE | G_PARAM_WRITABLE));
331 g_object_class_install_property(gobject_class,
332 PROP_AUTOFIT_LIMIT_VALUE,
333 g_param_spec_uint("autofit_limit_value",
334 "Size limit of image when autofitting",
339 G_PARAM_READABLE | G_PARAM_WRITABLE));
342 signals[SIGNAL_ZOOM] =
344 G_OBJECT_CLASS_TYPE(gobject_class),
346 G_STRUCT_OFFSET(PixbufRendererClass, zoom),
348 g_cclosure_marshal_VOID__DOUBLE,
352 signals[SIGNAL_CLICKED] =
353 g_signal_new("clicked",
354 G_OBJECT_CLASS_TYPE(gobject_class),
356 G_STRUCT_OFFSET(PixbufRendererClass, clicked),
358 g_cclosure_marshal_VOID__BOXED,
362 signals[SIGNAL_SCROLL_NOTIFY] =
363 g_signal_new("scroll-notify",
364 G_OBJECT_CLASS_TYPE(gobject_class),
366 G_STRUCT_OFFSET(PixbufRendererClass, scroll_notify),
368 g_cclosure_marshal_VOID__VOID,
371 signals[SIGNAL_RENDER_COMPLETE] =
372 g_signal_new("render-complete",
373 G_OBJECT_CLASS_TYPE(gobject_class),
375 G_STRUCT_OFFSET(PixbufRendererClass, render_complete),
377 g_cclosure_marshal_VOID__VOID,
380 signals[SIGNAL_DRAG] =
382 G_OBJECT_CLASS_TYPE(gobject_class),
384 G_STRUCT_OFFSET(PixbufRendererClass, drag),
386 g_cclosure_marshal_VOID__BOXED,
390 signals[SIGNAL_UPDATE_PIXEL] =
391 g_signal_new("update-pixel",
392 G_OBJECT_CLASS_TYPE(gobject_class),
394 G_STRUCT_OFFSET(PixbufRendererClass, update_pixel),
396 g_cclosure_marshal_VOID__VOID,
400 static void pixbuf_renderer_init(PixbufRenderer *pr)
404 box = GTK_WIDGET(pr);
406 pr->zoom_min = PR_ZOOM_MIN;
407 pr->zoom_max = PR_ZOOM_MAX;
408 pr->zoom_quality = GDK_INTERP_BILINEAR;
409 pr->zoom_2pass = FALSE;
413 pr->aspect_ratio = 1.0;
415 pr->dither_quality = GDK_RGB_DITHER_NORMAL;
417 pr->scroll_reset = PR_SCROLL_RESET_TOPLEFT;
420 pr->scroller_overlay = -1;
425 pr->source_tiles_enabled = FALSE;
426 pr->source_tiles = NULL;
430 pr->norm_center_x = 0.5;
431 pr->norm_center_y = 0.5;
433 pr->stereo_mode = PR_STEREO_NONE;
435 pr->renderer = (void *)renderer_tiles_new(pr);
437 pr->renderer2 = NULL;
439 gtk_widget_set_double_buffered(box, FALSE);
440 g_signal_connect_after(G_OBJECT(box), "size_allocate",
441 G_CALLBACK(pr_size_cb), pr);
443 pr_signals_connect(pr);
446 static void pixbuf_renderer_finalize(GObject *object)
450 pr = PIXBUF_RENDERER(object);
452 pr->renderer->free(pr->renderer);
453 if (pr->renderer2) pr->renderer->free(pr->renderer2);
456 if (pr->pixbuf) g_object_unref(pr->pixbuf);
458 pr_scroller_timer_set(pr, FALSE);
460 pr_source_tile_free_all(pr);
463 PixbufRenderer *pixbuf_renderer_new(void)
465 return g_object_new(TYPE_PIXBUF_RENDERER, NULL);
468 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
469 const GValue *value, GParamSpec *pspec)
473 pr = PIXBUF_RENDERER(object);
478 pr->zoom_min = g_value_get_double(value);
481 pr->zoom_max = g_value_get_double(value);
483 case PROP_ZOOM_QUALITY:
484 pr->zoom_quality = g_value_get_uint(value);
486 case PROP_ZOOM_2PASS:
487 pr->zoom_2pass = g_value_get_boolean(value);
489 case PROP_ZOOM_EXPAND:
490 pr->zoom_expand = g_value_get_boolean(value);
492 case PROP_DITHER_QUALITY:
493 pr->dither_quality = g_value_get_uint(value);
495 case PROP_SCROLL_RESET:
496 pr->scroll_reset = g_value_get_uint(value);
498 case PROP_DELAY_FLIP:
499 pr->delay_flip = g_value_get_boolean(value);
502 pr->loading = g_value_get_boolean(value);
505 pr->complete = g_value_get_boolean(value);
507 case PROP_CACHE_SIZE_DISPLAY:
508 // pr->tile_cache_max = g_value_get_uint(value);
510 case PROP_CACHE_SIZE_TILES:
511 pr->source_tiles_cache_size = g_value_get_uint(value);
513 case PROP_WINDOW_FIT:
514 pr->window_fit = g_value_get_boolean(value);
516 case PROP_WINDOW_LIMIT:
517 pr->window_limit = g_value_get_boolean(value);
519 case PROP_WINDOW_LIMIT_VALUE:
520 pr->window_limit_size = g_value_get_uint(value);
522 case PROP_AUTOFIT_LIMIT:
523 pr->autofit_limit = g_value_get_boolean(value);
525 case PROP_AUTOFIT_LIMIT_VALUE:
526 pr->autofit_limit_size = g_value_get_uint(value);
529 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
534 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
535 GValue *value, GParamSpec *pspec)
539 pr = PIXBUF_RENDERER(object);
544 g_value_set_double(value, pr->zoom_min);
547 g_value_set_double(value, pr->zoom_max);
549 case PROP_ZOOM_QUALITY:
550 g_value_set_uint(value, pr->zoom_quality);
552 case PROP_ZOOM_2PASS:
553 g_value_set_boolean(value, pr->zoom_2pass);
555 case PROP_ZOOM_EXPAND:
556 g_value_set_boolean(value, pr->zoom_expand);
558 case PROP_DITHER_QUALITY:
559 g_value_set_uint(value, pr->dither_quality);
561 case PROP_SCROLL_RESET:
562 g_value_set_uint(value, pr->scroll_reset);
564 case PROP_DELAY_FLIP:
565 g_value_set_boolean(value, pr->delay_flip);
568 g_value_set_boolean(value, pr->loading);
571 g_value_set_boolean(value, pr->complete);
573 case PROP_CACHE_SIZE_DISPLAY:
574 // g_value_set_uint(value, pr->tile_cache_max);
576 case PROP_CACHE_SIZE_TILES:
577 g_value_set_uint(value, pr->source_tiles_cache_size);
579 case PROP_WINDOW_FIT:
580 g_value_set_boolean(value, pr->window_fit);
582 case PROP_WINDOW_LIMIT:
583 g_value_set_boolean(value, pr->window_limit);
585 case PROP_WINDOW_LIMIT_VALUE:
586 g_value_set_uint(value, pr->window_limit_size);
588 case PROP_AUTOFIT_LIMIT:
589 g_value_set_boolean(value, pr->autofit_limit);
591 case PROP_AUTOFIT_LIMIT_VALUE:
592 g_value_set_uint(value, pr->autofit_limit_size);
595 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
600 static gboolean pixbuf_renderer_expose(GtkWidget *widget, GdkEventExpose *event)
602 #if GTK_CHECK_VERSION(2,20,0)
603 if (gtk_widget_is_drawable(widget))
605 if (GTK_WIDGET_DRAWABLE(widget))
608 #if GTK_CHECK_VERSION(2,20,0)
609 if (gtk_widget_get_has_window(widget))
611 if (!GTK_WIDGET_NO_WINDOW(widget))
614 if (event->window != widget->window)
618 gdk_window_get_position(event->window, &area.x, &area.y);
620 area.x += event->area.x;
621 area.y += event->area.y;
622 area.width = event->area.width;
623 area.height = event->area.height;
624 pixbuf_renderer_paint(PIXBUF_RENDERER(widget), &area);
628 pixbuf_renderer_paint(PIXBUF_RENDERER(widget), &event->area);
637 *-------------------------------------------------------------------
639 *-------------------------------------------------------------------
642 static void widget_set_cursor(GtkWidget *widget, gint icon)
646 if (!widget->window) return;
654 cursor = gdk_cursor_new(icon);
657 gdk_window_set_cursor(widget->window, cursor);
659 if (cursor) gdk_cursor_unref(cursor);
662 gboolean pr_clip_region(gint x, gint y, gint w, gint h,
663 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
664 gint *rx, gint *ry, gint *rw, gint *rh)
666 if (clip_x + clip_w <= x ||
668 clip_y + clip_h <= y ||
674 *rx = MAX(x, clip_x);
675 *rw = MIN((x + w), (clip_x + clip_w)) - *rx;
677 *ry = MAX(y, clip_y);
678 *rh = MIN((y + h), (clip_y + clip_h)) - *ry;
683 static gboolean pr_parent_window_sizable(PixbufRenderer *pr)
685 GdkWindowState state;
687 if (!pr->parent_window) return FALSE;
688 if (!pr->window_fit) return FALSE;
689 if (!GTK_WIDGET(pr)->window) return FALSE;
691 if (!pr->parent_window->window) return FALSE;
692 state = gdk_window_get_state(pr->parent_window->window);
693 if (state & GDK_WINDOW_STATE_MAXIMIZED) return FALSE;
698 static gboolean pr_parent_window_resize(PixbufRenderer *pr, gint w, gint h)
704 if (!pr_parent_window_sizable(pr)) return FALSE;
706 if (pr->window_limit)
708 gint sw = gdk_screen_width() * pr->window_limit_size / 100;
709 gint sh = gdk_screen_height() * pr->window_limit_size / 100;
715 widget = GTK_WIDGET(pr);
716 parent = GTK_WIDGET(pr->parent_window);
718 w += (parent->allocation.width - widget->allocation.width);
719 h += (parent->allocation.height - widget->allocation.height);
721 gdk_drawable_get_size(parent->window, &ww, &wh);
722 if (w == ww && h == wh) return FALSE;
724 gdk_window_resize(parent->window, w, h);
729 void pixbuf_renderer_set_parent(PixbufRenderer *pr, GtkWindow *window)
731 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
732 g_return_if_fail(window == NULL || GTK_IS_WINDOW(window));
734 pr->parent_window = GTK_WIDGET(window);
737 GtkWindow *pixbuf_renderer_get_parent(PixbufRenderer *pr)
739 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
741 return GTK_WINDOW(pr->parent_window);
746 *-------------------------------------------------------------------
748 *-------------------------------------------------------------------
752 gint pixbuf_renderer_overlay_add(PixbufRenderer *pr, GdkPixbuf *pixbuf, gint x, gint y,
753 OverlayRendererFlags flags)
755 /* let's assume both renderers returns the same value */
756 if (pr->renderer2) pr->renderer2->overlay_add(pr->renderer2, pixbuf, x, y, flags);
757 return pr->renderer->overlay_add(pr->renderer, pixbuf, x, y, flags);
760 void pixbuf_renderer_overlay_set(PixbufRenderer *pr, gint id, GdkPixbuf *pixbuf, gint x, gint y)
762 pr->renderer->overlay_set(pr->renderer, id, pixbuf, x, y);
763 if (pr->renderer2) pr->renderer2->overlay_set(pr->renderer2, id, pixbuf, x, y);
766 gboolean pixbuf_renderer_overlay_get(PixbufRenderer *pr, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
768 if (pr->renderer2) pr->renderer2->overlay_get(pr->renderer2, id, pixbuf, x, y);
769 return pr->renderer->overlay_get(pr->renderer, id, pixbuf, x, y);
772 void pixbuf_renderer_overlay_remove(PixbufRenderer *pr, gint id)
774 pr->renderer->overlay_set(pr->renderer, id, NULL, 0, 0);
775 if (pr->renderer2) pr->renderer2->overlay_set(pr->renderer2, id, NULL, 0, 0);
779 *-------------------------------------------------------------------
781 *-------------------------------------------------------------------
785 static gboolean pr_scroller_update_cb(gpointer data)
787 PixbufRenderer *pr = data;
791 /* this was a simple scroll by difference between scroller and mouse position,
792 * but all this math results in a smoother result and accounts for a dead zone.
795 if (abs(pr->scroller_xpos - pr->scroller_x) < PR_SCROLLER_DEAD_ZONE)
801 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
802 x = (pr->scroller_xpos - pr->scroller_x) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
803 x += (x > 0) ? -shift : shift;
806 if (abs(pr->scroller_ypos - pr->scroller_y) < PR_SCROLLER_DEAD_ZONE)
812 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
813 y = (pr->scroller_ypos - pr->scroller_y) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
814 y += (y > 0) ? -shift : shift;
817 if (abs(x) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
823 xinc = pr->scroller_xinc;
827 if (xinc < 0) xinc = 0;
828 if (x < xinc) xinc = x;
829 if (x > xinc) xinc = MIN(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
833 if (xinc > 0) xinc = 0;
834 if (x > xinc) xinc = x;
835 if (x < xinc) xinc = MAX(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
839 if (abs(y) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
845 yinc = pr->scroller_yinc;
849 if (yinc < 0) yinc = 0;
850 if (y < yinc) yinc = y;
851 if (y > yinc) yinc = MIN(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
855 if (yinc > 0) yinc = 0;
856 if (y > yinc) yinc = y;
857 if (y < yinc) yinc = MAX(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
861 pr->scroller_xinc = xinc;
862 pr->scroller_yinc = yinc;
864 xinc = xinc / PR_SCROLLER_UPDATES_PER_SEC;
865 yinc = yinc / PR_SCROLLER_UPDATES_PER_SEC;
867 pixbuf_renderer_scroll(pr, xinc, yinc);
872 static void pr_scroller_timer_set(PixbufRenderer *pr, gboolean start)
876 g_source_remove(pr->scroller_id);
882 pr->scroller_id = g_timeout_add(1000 / PR_SCROLLER_UPDATES_PER_SEC,
883 pr_scroller_update_cb, pr);
887 static void pr_scroller_start(PixbufRenderer *pr, gint x, gint y)
889 if (pr->scroller_overlay == -1)
895 pixbuf = pixbuf_inline(PIXBUF_INLINE_SCROLLER);
897 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 32, 32);
898 gdk_pixbuf_fill(pixbuf, 0x000000ff);
900 w = gdk_pixbuf_get_width(pixbuf);
901 h = gdk_pixbuf_get_height(pixbuf);
903 pr->scroller_overlay = pixbuf_renderer_overlay_add(pr, pixbuf, x - w / 2, y - h / 2, OVL_NORMAL);
904 g_object_unref(pixbuf);
909 pr->scroller_xpos = x;
910 pr->scroller_ypos = y;
912 pr_scroller_timer_set(pr, TRUE);
915 static void pr_scroller_stop(PixbufRenderer *pr)
917 if (!pr->scroller_id) return;
919 pixbuf_renderer_overlay_remove(pr, pr->scroller_overlay);
920 pr->scroller_overlay = -1;
922 pr_scroller_timer_set(pr, FALSE);
926 *-------------------------------------------------------------------
928 *-------------------------------------------------------------------
931 static void pr_border_clear(PixbufRenderer *pr)
933 pr->renderer->border_draw(pr->renderer, 0, 0, pr->viewport_width, pr->viewport_height);
934 if (pr->renderer2) pr->renderer2->border_draw(pr->renderer2, 0, 0, pr->viewport_width, pr->viewport_height);
937 void pixbuf_renderer_set_color(PixbufRenderer *pr, GdkColor *color)
942 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
944 widget = GTK_WIDGET(pr);
949 style = gtk_style_copy(gtk_widget_get_style(widget));
950 slot = &style->bg[GTK_STATE_NORMAL];
952 slot->red = color->red;
953 slot->green = color->green;
954 slot->blue = color->blue;
957 style = gtk_style_copy(gtk_widget_get_default_style());
960 gtk_widget_set_style(widget, style);
962 #if GTK_CHECK_VERSION(2,20,0)
963 if (gtk_widget_get_visible(widget)) pr_border_clear(pr);
965 if (GTK_WIDGET_VISIBLE(widget)) pr_border_clear(pr);
969 static void pr_redraw(PixbufRenderer *pr, gboolean new_data)
971 pr->renderer->queue_clear(pr->renderer);
972 pr->renderer->queue(pr->renderer, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, new_data, FALSE);
974 pr->renderer2->queue_clear(pr->renderer2);
975 pr->renderer2->queue(pr->renderer2, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, new_data, FALSE);
980 *-------------------------------------------------------------------
982 *-------------------------------------------------------------------
985 static void pr_source_tile_free(SourceTile *st)
989 if (st->pixbuf) g_object_unref(st->pixbuf);
993 static void pr_source_tile_free_all(PixbufRenderer *pr)
997 work = pr->source_tiles;
1005 pr_source_tile_free(st);
1008 g_list_free(pr->source_tiles);
1009 pr->source_tiles = NULL;
1012 static void pr_source_tile_unset(PixbufRenderer *pr)
1014 pr_source_tile_free_all(pr);
1015 pr->source_tiles_enabled = FALSE;
1018 static gboolean pr_source_tile_visible(PixbufRenderer *pr, SourceTile *st)
1020 gint x1, y1, x2, y2;
1022 if (!st) return FALSE;
1024 // x1 = ROUND_DOWN(pr->x_scroll, pr->tile_width);
1025 // y1 = ROUND_DOWN(pr->y_scroll, pr->tile_height);
1026 // x2 = ROUND_UP(pr->x_scroll + pr->vis_width, pr->tile_width);
1027 // y2 = ROUND_UP(pr->y_scroll + pr->vis_height, pr->tile_height);
1030 x2 = pr->x_scroll + pr->vis_width;
1031 y2 = pr->y_scroll + pr->vis_height;
1033 return !((gdouble)st->x * pr->scale > (gdouble)x2 ||
1034 (gdouble)(st->x + pr->source_tile_width) * pr->scale < (gdouble)x1 ||
1035 (gdouble)st->y * pr->scale > (gdouble)y2 ||
1036 (gdouble)(st->y + pr->source_tile_height) * pr->scale < (gdouble)y1);
1039 static SourceTile *pr_source_tile_new(PixbufRenderer *pr, gint x, gint y)
1041 SourceTile *st = NULL;
1044 g_return_val_if_fail(pr->source_tile_width >= 1 && pr->source_tile_height >= 1, NULL);
1046 if (pr->source_tiles_cache_size < 4) pr->source_tiles_cache_size = 4;
1048 count = g_list_length(pr->source_tiles);
1049 if (count >= pr->source_tiles_cache_size)
1053 work = g_list_last(pr->source_tiles);
1054 while (work && count >= pr->source_tiles_cache_size)
1058 needle = work->data;
1061 if (!pr_source_tile_visible(pr, needle))
1063 pr->source_tiles = g_list_remove(pr->source_tiles, needle);
1065 if (pr->func_tile_dispose)
1067 pr->func_tile_dispose(pr, needle->x, needle->y,
1068 pr->source_tile_width, pr->source_tile_height,
1069 needle->pixbuf, pr->func_tile_data);
1078 pr_source_tile_free(needle);
1088 st = g_new0(SourceTile, 1);
1089 st->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8,
1090 pr->source_tile_width, pr->source_tile_height);
1093 st->x = ROUND_DOWN(x, pr->source_tile_width);
1094 st->y = ROUND_DOWN(y, pr->source_tile_height);
1097 pr->source_tiles = g_list_prepend(pr->source_tiles, st);
1102 static SourceTile *pr_source_tile_request(PixbufRenderer *pr, gint x, gint y)
1106 st = pr_source_tile_new(pr, x, y);
1107 if (!st) return NULL;
1109 if (pr->func_tile_request &&
1110 pr->func_tile_request(pr, st->x, st->y,
1111 pr->source_tile_width, pr->source_tile_height, st->pixbuf, pr->func_tile_data))
1116 pr->renderer->invalidate_region(pr->renderer, st->x * pr->scale, st->y * pr->scale,
1117 pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
1118 if (pr->renderer2) pr->renderer2->invalidate_region(pr->renderer2, st->x * pr->scale, st->y * pr->scale,
1119 pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
1123 static SourceTile *pr_source_tile_find(PixbufRenderer *pr, gint x, gint y)
1127 work = pr->source_tiles;
1130 SourceTile *st = work->data;
1132 if (x >= st->x && x < st->x + pr->source_tile_width &&
1133 y >= st->y && y < st->y + pr->source_tile_height)
1135 if (work != pr->source_tiles)
1137 pr->source_tiles = g_list_remove_link(pr->source_tiles, work);
1138 pr->source_tiles = g_list_concat(work, pr->source_tiles);
1149 GList *pr_source_tile_compute_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h, gboolean request)
1157 if (w > pr->image_width) w = pr->image_width;
1158 if (h > pr->image_height) h = pr->image_height;
1160 sx = ROUND_DOWN(x, pr->source_tile_width);
1161 sy = ROUND_DOWN(y, pr->source_tile_height);
1163 for (x1 = sx; x1 < x + w; x1+= pr->source_tile_width)
1165 for (y1 = sy; y1 < y + h; y1 += pr->source_tile_height)
1169 st = pr_source_tile_find(pr, x1, y1);
1170 if (!st && request) st = pr_source_tile_request(pr, x1, y1);
1172 if (st) list = g_list_prepend(list, st);
1176 return g_list_reverse(list);
1179 static void pr_source_tile_changed(PixbufRenderer *pr, gint x, gint y, gint width, gint height)
1183 if (width < 1 || height < 1) return;
1185 work = pr->source_tiles;
1189 gint rx, ry, rw, rh;
1194 if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1195 x, y, width, height,
1196 &rx, &ry, &rw, &rh))
1200 pixbuf = gdk_pixbuf_new_subpixbuf(st->pixbuf, rx - st->x, ry - st->y, rw, rh);
1201 if (pr->func_tile_request &&
1202 pr->func_tile_request(pr, rx, ry, rw, rh, pixbuf, pr->func_tile_data))
1204 pr->renderer->invalidate_region(pr->renderer, rx * pr->scale, ry * pr->scale,
1205 rw * pr->scale, rh * pr->scale);
1206 if (pr->renderer2) pr->renderer2->invalidate_region(pr->renderer2, rx * pr->scale, ry * pr->scale,
1207 rw * pr->scale, rh * pr->scale);
1209 g_object_unref(pixbuf);
1214 void pixbuf_renderer_set_tiles(PixbufRenderer *pr, gint width, gint height,
1215 gint tile_width, gint tile_height, gint cache_size,
1216 PixbufRendererTileRequestFunc func_request,
1217 PixbufRendererTileDisposeFunc func_dispose,
1221 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1222 g_return_if_fail(tile_width >= 32 && tile_width >= 32);
1223 g_return_if_fail(width >= 32 && height > 32);
1224 g_return_if_fail(func_request != NULL);
1226 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1229 pr_source_tile_unset(pr);
1231 if (cache_size < 4) cache_size = 4;
1233 pr->source_tiles_enabled = TRUE;
1234 pr->source_tiles_cache_size = cache_size;
1235 pr->source_tile_width = tile_width;
1236 pr->source_tile_height = tile_height;
1238 pr->image_width = width;
1239 pr->image_height = height;
1241 pr->func_tile_request = func_request;
1242 pr->func_tile_dispose = func_dispose;
1243 pr->func_tile_data = user_data;
1245 pr_zoom_sync(pr, zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
1246 pr_redraw(pr, TRUE);
1249 void pixbuf_renderer_set_tiles_size(PixbufRenderer *pr, gint width, gint height)
1251 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1252 g_return_if_fail(width >= 32 && height > 32);
1254 if (!pr->source_tiles_enabled) return;
1255 if (pr->image_width == width && pr->image_height == height) return;
1257 pr->image_width = width;
1258 pr->image_height = height;
1260 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
1263 gint pixbuf_renderer_get_tiles(PixbufRenderer *pr)
1265 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
1267 return pr->source_tiles_enabled;
1270 static void pr_zoom_adjust_real(PixbufRenderer *pr, gdouble increment,
1271 PrZoomFlags flags, gint x, gint y)
1273 gdouble zoom = pr->zoom;
1275 if (increment == 0.0) return;
1279 if (pr->scale < 1.0)
1281 zoom = 0.0 - 1.0 / pr->scale;
1289 if (increment < 0.0)
1291 if (zoom >= 1.0 && zoom + increment < 1.0)
1293 zoom = zoom + increment - 2.0;
1297 zoom = zoom + increment;
1302 if (zoom <= -1.0 && zoom + increment > -1.0)
1304 zoom = zoom + increment + 2.0;
1308 zoom = zoom + increment;
1312 pr_zoom_sync(pr, zoom, flags, x, y);
1317 *-------------------------------------------------------------------
1319 *-------------------------------------------------------------------
1322 static void pr_update_signal(PixbufRenderer *pr)
1325 log_printf("FIXME: send updated signal\n");
1327 DEBUG_1("%s pixbuf renderer updated - started drawing %p, img: %dx%d", get_exec_time(), pr, pr->image_width, pr->image_height);
1328 pr->debug_updated = TRUE;
1331 static void pr_zoom_signal(PixbufRenderer *pr)
1333 g_signal_emit(pr, signals[SIGNAL_ZOOM], 0, pr->zoom);
1336 static void pr_clicked_signal(PixbufRenderer *pr, GdkEventButton *bevent)
1338 g_signal_emit(pr, signals[SIGNAL_CLICKED], 0, bevent);
1341 static void pr_scroll_notify_signal(PixbufRenderer *pr)
1343 g_signal_emit(pr, signals[SIGNAL_SCROLL_NOTIFY], 0);
1346 void pr_render_complete_signal(PixbufRenderer *pr)
1350 g_signal_emit(pr, signals[SIGNAL_RENDER_COMPLETE], 0);
1351 g_object_set(G_OBJECT(pr), "complete", TRUE, NULL);
1353 if (pr->debug_updated)
1355 DEBUG_1("%s pixbuf renderer done %p", get_exec_time(), pr);
1356 pr->debug_updated = FALSE;
1360 static void pr_drag_signal(PixbufRenderer *pr, GdkEventButton *bevent)
1362 g_signal_emit(pr, signals[SIGNAL_DRAG], 0, bevent);
1365 static void pr_update_pixel_signal(PixbufRenderer *pr)
1367 g_signal_emit(pr, signals[SIGNAL_UPDATE_PIXEL], 0);
1371 *-------------------------------------------------------------------
1373 *-------------------------------------------------------------------
1377 void pr_tile_coords_map_orientation(gint orientation,
1378 gdouble tile_x, gdouble tile_y, /* coordinates of the tile */
1379 gdouble image_w, gdouble image_h,
1380 gdouble tile_w, gdouble tile_h,
1381 gdouble *res_x, gdouble *res_y)
1385 switch (orientation)
1387 case EXIF_ORIENTATION_TOP_LEFT:
1388 /* normal -- nothing to do */
1390 case EXIF_ORIENTATION_TOP_RIGHT:
1392 *res_x = image_w - tile_x - tile_w;
1394 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1396 *res_x = image_w - tile_x - tile_w;
1397 *res_y = image_h - tile_y - tile_h;
1399 case EXIF_ORIENTATION_BOTTOM_LEFT:
1401 *res_y = image_h - tile_y - tile_h;
1403 case EXIF_ORIENTATION_LEFT_TOP:
1407 case EXIF_ORIENTATION_RIGHT_TOP:
1408 /* rotated -90 (270) */
1410 *res_y = image_w - tile_x - tile_w;
1412 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1413 *res_x = image_h - tile_y - tile_h;
1414 *res_y = image_w - tile_x - tile_w;
1416 case EXIF_ORIENTATION_LEFT_BOTTOM:
1418 *res_x = image_h - tile_y - tile_h;
1422 /* The other values are out of range */
1425 // log_printf("tile coord y:%f, ih:%d, th:%f ry:%f\n", tile_y, image_h, tile_h, *res_x);
1428 void pr_tile_region_map_orientation(gint orientation,
1429 gint area_x, gint area_y, /* coordinates of the area inside tile */
1430 gint tile_w, gint tile_h,
1431 gint area_w, gint area_h,
1432 gint *res_x, gint *res_y,
1433 gint *res_w, gint *res_h)
1440 switch (orientation)
1442 case EXIF_ORIENTATION_TOP_LEFT:
1443 /* normal -- nothing to do */
1445 case EXIF_ORIENTATION_TOP_RIGHT:
1447 *res_x = tile_w - area_x - area_w;
1449 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1451 *res_x = tile_w - area_x - area_w;
1452 *res_y = tile_h - area_y - area_h;
1454 case EXIF_ORIENTATION_BOTTOM_LEFT:
1456 *res_y = tile_h - area_y - area_h;
1458 case EXIF_ORIENTATION_LEFT_TOP:
1464 case EXIF_ORIENTATION_RIGHT_TOP:
1465 /* rotated -90 (270) */
1467 *res_y = tile_w - area_x - area_w;
1471 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1472 *res_x = tile_h - area_y - area_h;
1473 *res_y = tile_w - area_x - area_w;
1477 case EXIF_ORIENTATION_LEFT_BOTTOM:
1479 *res_x = tile_h - area_y - area_h;
1485 /* The other values are out of range */
1488 // log_printf("inside y:%d, th:%d, ah:%d ry:%d\n", area_y, tile_h, area_h, *res_x);
1491 void pr_coords_map_orientation_reverse(gint orientation,
1492 gint area_x, gint area_y,
1493 gint tile_w, gint tile_h,
1494 gint area_w, gint area_h,
1495 gint *res_x, gint *res_y,
1496 gint *res_w, gint *res_h)
1503 switch (orientation)
1505 case EXIF_ORIENTATION_TOP_LEFT:
1506 /* normal -- nothing to do */
1508 case EXIF_ORIENTATION_TOP_RIGHT:
1510 *res_x = tile_w - area_x - area_w;
1512 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1514 *res_x = tile_w - area_x - area_w;
1515 *res_y = tile_h - area_y - area_h;
1517 case EXIF_ORIENTATION_BOTTOM_LEFT:
1519 *res_y = tile_h - area_y - area_h;
1521 case EXIF_ORIENTATION_LEFT_TOP:
1527 case EXIF_ORIENTATION_RIGHT_TOP:
1528 /* rotated -90 (270) */
1529 *res_x = tile_w - area_y - area_h;
1534 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1535 *res_x = tile_w - area_y - area_h;
1536 *res_y = tile_h - area_x - area_w;
1540 case EXIF_ORIENTATION_LEFT_BOTTOM:
1543 *res_y = tile_h - area_x - area_w;
1548 /* The other values are out of range */
1555 static void pixbuf_renderer_sync_scroll_center(PixbufRenderer *pr)
1558 if (!pr->width || !pr->height) return;
1561 * Update norm_center only if the image is bigger than the window.
1562 * With this condition the stored center survives also a temporary display
1563 * of the "broken image" icon.
1566 if (pr->width > pr->viewport_width)
1568 src_x = pr->x_scroll + pr->vis_width / 2;
1569 pr->norm_center_x = (gdouble)src_x / pr->width;
1572 if (pr->height > pr->viewport_height)
1574 src_y = pr->y_scroll + pr->vis_height / 2;
1575 pr->norm_center_y = (gdouble)src_y / pr->height;
1580 static gboolean pr_scroll_clamp(PixbufRenderer *pr)
1585 if (pr->zoom == 0.0)
1593 old_xs = pr->x_scroll;
1594 old_ys = pr->y_scroll;
1596 if (pr->x_offset > 0)
1602 pr->x_scroll = CLAMP(pr->x_scroll, 0, pr->width - pr->vis_width);
1605 if (pr->y_offset > 0)
1611 pr->y_scroll = CLAMP(pr->y_scroll, 0, pr->height - pr->vis_height);
1614 pixbuf_renderer_sync_scroll_center(pr);
1616 return (old_xs != pr->x_scroll || old_ys != pr->y_scroll);
1619 static gboolean pr_size_clamp(PixbufRenderer *pr)
1621 gint old_vw, old_vh;
1623 old_vw = pr->vis_width;
1624 old_vh = pr->vis_height;
1626 if (pr->width < pr->viewport_width)
1628 pr->vis_width = pr->width;
1629 pr->x_offset = (pr->viewport_width - pr->width) / 2;
1633 pr->vis_width = pr->viewport_width;
1637 if (pr->height < pr->viewport_height)
1639 pr->vis_height = pr->height;
1640 pr->y_offset = (pr->viewport_height - pr->height) / 2;
1644 pr->vis_height = pr->viewport_height;
1648 pixbuf_renderer_sync_scroll_center(pr);
1650 return (old_vw != pr->vis_width || old_vh != pr->vis_height);
1653 static gboolean pr_zoom_clamp(PixbufRenderer *pr, gdouble zoom,
1654 PrZoomFlags flags, gboolean *redrawn)
1659 gboolean force = !!(flags & PR_ZOOM_FORCE);
1660 gboolean new = !!(flags & PR_ZOOM_NEW);
1661 gboolean invalidate = !!(flags & PR_ZOOM_INVALIDATE);
1662 gboolean lazy = !!(flags & PR_ZOOM_LAZY);
1664 zoom = CLAMP(zoom, pr->zoom_min, pr->zoom_max);
1666 if (pr->zoom == zoom && !force) return FALSE;
1668 w = pr->image_width;
1669 h = pr->image_height;
1671 if (zoom == 0.0 && !pr->pixbuf)
1675 else if (zoom == 0.0)
1681 sizeable = (new && pr_parent_window_sizable(pr));
1685 max_w = gdk_screen_width();
1686 max_h = gdk_screen_height();
1688 if (pr->window_limit)
1690 max_w = max_w * pr->window_limit_size / 100;
1691 max_h = max_h * pr->window_limit_size / 100;
1696 max_w = pr->viewport_width;
1697 max_h = pr->viewport_height;
1700 if ((pr->zoom_expand && !sizeable) || w > max_w || h > max_h)
1702 if ((gdouble)max_w / w > (gdouble)max_h / h / pr->aspect_ratio)
1704 scale = (gdouble)max_h / h / pr->aspect_ratio;
1706 w = w * scale + 0.5;
1707 if (w > max_w) w = max_w;
1711 scale = (gdouble)max_w / w;
1713 h = h * scale * pr->aspect_ratio + 0.5;
1714 if (h > max_h) h = max_h;
1717 if (pr->autofit_limit)
1719 gdouble factor = (gdouble)pr->autofit_limit_size / 100;
1720 w = w * factor + 0.5;
1721 h = h * factor + 0.5;
1722 scale = scale * factor;
1733 else if (zoom > 0.0) /* zoom orig, in */
1737 h = h * scale * pr->aspect_ratio;
1741 scale = 1.0 / (0.0 - zoom);
1743 h = h * scale * pr->aspect_ratio;
1746 invalid = (pr->width != w || pr->height != h);
1753 if (invalidate || invalid)
1755 pr->renderer->invalidate_all(pr->renderer);
1756 if (pr->renderer2) pr->renderer2->invalidate_all(pr->renderer2);
1757 if (!lazy) pr_redraw(pr, TRUE);
1759 if (redrawn) *redrawn = (invalidate || invalid);
1761 pixbuf_renderer_sync_scroll_center(pr);
1766 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
1767 PrZoomFlags flags, gint px, gint py)
1770 gint old_cx, old_cy;
1773 gboolean redrawn = FALSE;
1774 gboolean center_point = !!(flags & PR_ZOOM_CENTER);
1775 gboolean force = !!(flags & PR_ZOOM_FORCE);
1776 gboolean new = !!(flags & PR_ZOOM_NEW);
1777 gboolean lazy = !!(flags & PR_ZOOM_LAZY);
1778 PrZoomFlags clamp_flags = flags;
1779 gdouble old_center_x = pr->norm_center_x;
1780 gdouble old_center_y = pr->norm_center_y;
1782 old_scale = pr->scale;
1785 px = CLAMP(px, 0, pr->width);
1786 py = CLAMP(py, 0, pr->height);
1787 old_cx = pr->x_scroll + (px - pr->x_offset);
1788 old_cy = pr->y_scroll + (py - pr->y_offset);
1793 old_cx = pr->x_scroll + pr->vis_width / 2;
1794 old_cy = pr->y_scroll + pr->vis_height / 2;
1797 if (force) clamp_flags |= PR_ZOOM_INVALIDATE;
1798 if (lazy) clamp_flags |= PR_ZOOM_LAZY;
1799 if (!pr_zoom_clamp(pr, zoom, clamp_flags, &redrawn)) return;
1801 clamped = pr_size_clamp(pr);
1802 sized = pr_parent_window_resize(pr, pr->width, pr->height);
1806 switch (pr->scroll_reset)
1808 case PR_SCROLL_RESET_NOCHANGE:
1809 /* maintain old scroll position */
1810 pr->x_scroll = ((gdouble)pr->image_width * old_center_x * pr->scale) - pr->vis_width / 2;
1811 pr->y_scroll = ((gdouble)pr->image_height * old_center_y * pr->scale * pr->aspect_ratio) - pr->vis_height / 2;
1813 case PR_SCROLL_RESET_CENTER:
1814 /* center new image */
1815 pr->x_scroll = ((gdouble)pr->image_width / 2.0 * pr->scale) - pr->vis_width / 2;
1816 pr->y_scroll = ((gdouble)pr->image_height / 2.0 * pr->scale * pr->aspect_ratio) - pr->vis_height / 2;
1818 case PR_SCROLL_RESET_TOPLEFT:
1820 /* reset to upper left */
1828 /* user zoom does not force, so keep visible center point */
1831 pr->x_scroll = old_cx / old_scale * pr->scale - (px - pr->x_offset);
1832 pr->y_scroll = old_cy / old_scale * pr->scale * pr->aspect_ratio - (py - pr->y_offset);
1836 pr->x_scroll = old_cx / old_scale * pr->scale - (pr->vis_width / 2);
1837 pr->y_scroll = old_cy / old_scale * pr->scale * pr->aspect_ratio - (pr->vis_height / 2);
1841 pr_scroll_clamp(pr);
1843 /* If the window was not sized, redraw the image - we know there will be no size/expose signal.
1844 * But even if a size is claimed, there is no guarantee that the window manager will allow it,
1845 * so redraw the window anyway :/
1847 if (sized || clamped) pr_border_clear(pr);
1851 pr->renderer->queue_clear(pr->renderer);
1852 if (pr->renderer2) pr->renderer2->queue_clear(pr->renderer2);
1856 pr_redraw(pr, redrawn);
1859 pr_scroll_notify_signal(pr);
1861 pr_update_signal(pr);
1864 static void pr_size_sync(PixbufRenderer *pr, gint new_width, gint new_height)
1866 gboolean zoom_changed = FALSE;
1868 gint new_viewport_width = new_width;
1869 gint new_viewport_height = new_height;
1871 if (!pr->stereo_temp_disable)
1873 if (pr->stereo_mode & PR_STEREO_HORIZ)
1875 new_viewport_width = new_width / 2;
1877 else if (pr->stereo_mode & PR_STEREO_VERT)
1879 new_viewport_height = new_height / 2;
1881 else if (pr->stereo_mode & PR_STEREO_FIXED)
1883 new_viewport_width = pr->stereo_fixed_width;
1884 new_viewport_height = pr->stereo_fixed_height;
1888 if (pr->window_width == new_width && pr->window_height == new_height &&
1889 pr->viewport_width == new_viewport_width && pr->viewport_height == new_viewport_height) return;
1891 pr->window_width = new_width;
1892 pr->window_height = new_height;
1893 pr->viewport_width = new_viewport_width;
1894 pr->viewport_height = new_viewport_height;
1896 if (pr->zoom == 0.0)
1898 gdouble old_scale = pr->scale;
1899 pr_zoom_clamp(pr, 0.0, PR_ZOOM_FORCE, NULL);
1900 zoom_changed = (old_scale != pr->scale);
1904 pr_scroll_clamp(pr);
1906 pr->renderer->update_sizes(pr->renderer);
1907 if (pr->renderer2) pr->renderer2->update_sizes(pr->renderer2);
1909 /* ensure scroller remains visible */
1910 if (pr->scroller_overlay != -1)
1912 gboolean update = FALSE;
1914 if (pr->scroller_x > new_width)
1916 pr->scroller_x = new_width;
1917 pr->scroller_xpos = new_width;
1920 if (pr->scroller_y > new_height)
1922 pr->scroller_y = new_height;
1923 pr->scroller_ypos = new_height;
1931 if (pixbuf_renderer_overlay_get(pr, pr->scroller_overlay, &pixbuf, NULL, NULL))
1935 w = gdk_pixbuf_get_width(pixbuf);
1936 h = gdk_pixbuf_get_height(pixbuf);
1937 pixbuf_renderer_overlay_set(pr, pr->scroller_overlay, pixbuf,
1938 pr->scroller_x - w / 2, pr->scroller_y - h / 2);
1943 pr_border_clear(pr);
1945 pr_scroll_notify_signal(pr);
1946 if (zoom_changed) pr_zoom_signal(pr);
1947 pr_update_signal(pr);
1950 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
1952 PixbufRenderer *pr = data;
1954 pr_size_sync(pr, allocation->width, allocation->height);
1957 static void pixbuf_renderer_paint(PixbufRenderer *pr, GdkRectangle *area)
1962 x = MAX(0, (gint)area->x - pr->x_offset + pr->x_scroll);
1963 y = MAX(0, (gint)area->y - pr->y_offset + pr->y_scroll);
1965 pr->renderer->border_draw(pr->renderer, area->x, area->y, area->width, area->height);
1966 pr->renderer->queue(pr->renderer,
1968 MIN((gint)area->width, pr->width - x),
1969 MIN((gint)area->height, pr->height - y),
1970 FALSE, TILE_RENDER_ALL, FALSE, FALSE);
1973 pr->renderer2->border_draw(pr->renderer2, area->x, area->y, area->width, area->height);
1974 pr->renderer2->queue(pr->renderer2,
1976 MIN((gint)area->width, pr->width - x),
1977 MIN((gint)area->height, pr->height - y),
1978 FALSE, TILE_RENDER_ALL, FALSE, FALSE);
1983 *-------------------------------------------------------------------
1985 *-------------------------------------------------------------------
1988 void pixbuf_renderer_scroll(PixbufRenderer *pr, gint x, gint y)
1993 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1995 if (!pr->pixbuf && !pr->source_tiles_enabled) return;
1997 old_x = pr->x_scroll;
1998 old_y = pr->y_scroll;
2003 pr_scroll_clamp(pr);
2005 pixbuf_renderer_sync_scroll_center(pr);
2007 if (pr->x_scroll == old_x && pr->y_scroll == old_y) return;
2009 pr_scroll_notify_signal(pr);
2011 x_off = pr->x_scroll - old_x;
2012 y_off = pr->y_scroll - old_y;
2014 pr->renderer->scroll(pr->renderer, x_off, y_off);
2015 if (pr->renderer2) pr->renderer2->scroll(pr->renderer2, x_off, y_off);
2018 void pixbuf_renderer_scroll_to_point(PixbufRenderer *pr, gint x, gint y,
2019 gdouble x_align, gdouble y_align)
2024 x_align = CLAMP(x_align, 0.0, 1.0);
2025 y_align = CLAMP(y_align, 0.0, 1.0);
2027 ax = (gdouble)pr->vis_width * x_align;
2028 ay = (gdouble)pr->vis_height * y_align;
2030 px = (gdouble)x * pr->scale - (pr->x_scroll + ax);
2031 py = (gdouble)y * pr->scale * pr->aspect_ratio - (pr->y_scroll + ay);
2033 pixbuf_renderer_scroll(pr, px, py);
2036 /* get or set coordinates of viewport center in the image, in range 0.0 - 1.0 */
2038 void pixbuf_renderer_get_scroll_center(PixbufRenderer *pr, gdouble *x, gdouble *y)
2040 *x = pr->norm_center_x;
2041 *y = pr->norm_center_y;
2044 void pixbuf_renderer_set_scroll_center(PixbufRenderer *pr, gdouble x, gdouble y)
2046 gdouble dst_x, dst_y;
2048 dst_x = x * pr->width - pr->vis_width / 2 - pr->x_scroll + CLAMP(pr->subpixel_x_scroll, -1.0, 1.0);
2049 dst_y = y * pr->height - pr->vis_height / 2 - pr->y_scroll + CLAMP(pr->subpixel_y_scroll, -1.0, 1.0);
2051 pr->subpixel_x_scroll = dst_x - (gint)dst_x;
2052 pr->subpixel_y_scroll = dst_y - (gint)dst_y;
2054 pixbuf_renderer_scroll(pr, (gint)dst_x, (gint)dst_y);
2058 *-------------------------------------------------------------------
2060 *-------------------------------------------------------------------
2063 static gboolean pr_mouse_motion_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
2068 /* This is a hack, but work far the best, at least for single pointer systems.
2069 * See http://bugzilla.gnome.org/show_bug.cgi?id=587714 for more. */
2071 gdk_window_get_pointer (bevent->window, &x, &y, NULL);
2075 pr = PIXBUF_RENDERER(widget);
2077 if (pr->scroller_id)
2079 pr->scroller_xpos = bevent->x;
2080 pr->scroller_ypos = bevent->y;
2083 pr->x_mouse = bevent->x;
2084 pr->y_mouse = bevent->y;
2085 pr_update_pixel_signal(pr);
2087 if (!pr->in_drag || !gdk_pointer_is_grabbed()) return FALSE;
2089 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
2095 widget_set_cursor(widget, GDK_FLEUR);
2098 if (bevent->state & GDK_CONTROL_MASK)
2100 accel = PR_PAN_SHIFT_MULTIPLIER;
2108 pixbuf_renderer_scroll(pr, (pr->drag_last_x - bevent->x) * accel,
2109 (pr->drag_last_y - bevent->y) * accel);
2111 pr_drag_signal(pr, bevent);
2113 pr->drag_last_x = bevent->x;
2114 pr->drag_last_y = bevent->y;
2116 /* This is recommended by the GTK+ documentation, but does not work properly.
2117 * Use deprecated way until GTK+ gets a solution for correct motion hint handling:
2118 * http://bugzilla.gnome.org/show_bug.cgi?id=587714
2120 /* gdk_event_request_motions (bevent); */
2124 static gboolean pr_leave_notify_cb(GtkWidget *widget, GdkEventCrossing *cevent, gpointer data)
2128 pr = PIXBUF_RENDERER(widget);
2132 pr_update_pixel_signal(pr);
2136 static gboolean pr_mouse_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
2141 pr = PIXBUF_RENDERER(widget);
2143 if (pr->scroller_id) return TRUE;
2145 switch (bevent->button)
2147 case MOUSE_BUTTON_LEFT:
2149 pr->drag_last_x = bevent->x;
2150 pr->drag_last_y = bevent->y;
2152 gdk_pointer_grab(widget->window, FALSE,
2153 GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_RELEASE_MASK,
2154 NULL, NULL, bevent->time);
2155 gtk_grab_add(widget);
2157 case MOUSE_BUTTON_MIDDLE:
2160 case MOUSE_BUTTON_RIGHT:
2161 pr_clicked_signal(pr, bevent);
2167 parent = gtk_widget_get_parent(widget);
2168 #if GTK_CHECK_VERSION(2,20,0)
2169 if (widget && gtk_widget_get_can_focus(parent))
2171 if (widget && GTK_WIDGET_CAN_FOCUS(parent))
2174 gtk_widget_grab_focus(parent);
2180 static gboolean pr_mouse_release_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
2184 pr = PIXBUF_RENDERER(widget);
2186 if (pr->scroller_id)
2188 pr_scroller_stop(pr);
2192 #if GTK_CHECK_VERSION(2,20,0)
2193 if (gdk_pointer_is_grabbed() && gtk_widget_has_grab(GTK_WIDGET(pr)))
2195 if (gdk_pointer_is_grabbed() && GTK_WIDGET_HAS_GRAB(pr))
2198 gtk_grab_remove(widget);
2199 gdk_pointer_ungrab(bevent->time);
2200 widget_set_cursor(widget, -1);
2203 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
2205 if (bevent->button == MOUSE_BUTTON_LEFT && (bevent->state & GDK_CONTROL_MASK))
2207 pr_scroller_start(pr, bevent->x, bevent->y);
2209 else if (bevent->button == MOUSE_BUTTON_LEFT || bevent->button == MOUSE_BUTTON_MIDDLE)
2211 pr_clicked_signal(pr, bevent);
2215 pr->in_drag = FALSE;
2220 static gboolean pr_mouse_leave_cb(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
2224 pr = PIXBUF_RENDERER(widget);
2226 if (pr->scroller_id)
2228 pr->scroller_xpos = pr->scroller_x;
2229 pr->scroller_ypos = pr->scroller_y;
2230 pr->scroller_xinc = 0;
2231 pr->scroller_yinc = 0;
2237 static void pr_mouse_drag_cb(GtkWidget *widget, GdkDragContext *context, gpointer data)
2241 pr = PIXBUF_RENDERER(widget);
2243 pr->drag_moved = PR_DRAG_SCROLL_THRESHHOLD;
2246 static void pr_signals_connect(PixbufRenderer *pr)
2248 g_signal_connect(G_OBJECT(pr), "motion_notify_event",
2249 G_CALLBACK(pr_mouse_motion_cb), pr);
2250 g_signal_connect(G_OBJECT(pr), "button_press_event",
2251 G_CALLBACK(pr_mouse_press_cb), pr);
2252 g_signal_connect(G_OBJECT(pr), "button_release_event",
2253 G_CALLBACK(pr_mouse_release_cb), pr);
2254 g_signal_connect(G_OBJECT(pr), "leave_notify_event",
2255 G_CALLBACK(pr_mouse_leave_cb), pr);
2256 g_signal_connect(G_OBJECT(pr), "leave_notify_event",
2257 G_CALLBACK(pr_leave_notify_cb), pr);
2259 gtk_widget_set_events(GTK_WIDGET(pr), GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
2260 GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
2261 GDK_LEAVE_NOTIFY_MASK);
2263 g_signal_connect(G_OBJECT(pr), "drag_begin",
2264 G_CALLBACK(pr_mouse_drag_cb), pr);
2269 *-------------------------------------------------------------------
2271 *-------------------------------------------------------------------
2274 #define COLOR_BYTES 3 /* rgb */
2275 void pr_create_anaglyph(GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h)
2278 guchar *s_pix, *d_pix;
2283 srs = gdk_pixbuf_get_rowstride(right);
2284 s_pix = gdk_pixbuf_get_pixels(right);
2285 spi = s_pix + (x * COLOR_BYTES);
2287 drs = gdk_pixbuf_get_rowstride(pixbuf);
2288 d_pix = gdk_pixbuf_get_pixels(pixbuf);
2289 dpi = d_pix + x * COLOR_BYTES;
2291 for (i = y; i < y + h; i++)
2293 sp = spi + (i * srs);
2294 dp = dpi + (i * drs);
2295 for (j = 0; j < w; j++)
2297 *dp = *sp; /* copy red channel */
2307 *-------------------------------------------------------------------
2309 *-------------------------------------------------------------------
2311 static void pr_pixbuf_size_sync(PixbufRenderer *pr)
2313 pr->stereo_pixbuf_offset_left = 0;
2314 pr->stereo_pixbuf_offset_right = 0;
2315 if (!pr->pixbuf) return;
2316 gint stereo_data = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(pr->pixbuf), "stereo_data"));
2317 switch (pr->orientation)
2319 case EXIF_ORIENTATION_LEFT_TOP:
2320 case EXIF_ORIENTATION_RIGHT_TOP:
2321 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2322 case EXIF_ORIENTATION_LEFT_BOTTOM:
2323 pr->image_width = gdk_pixbuf_get_height(pr->pixbuf);
2324 pr->image_height = gdk_pixbuf_get_width(pr->pixbuf);
2325 if (stereo_data == STEREO_PIXBUF_SBS)
2327 pr->image_height /= 2;
2328 pr->stereo_pixbuf_offset_right = pr->image_height;
2330 else if (stereo_data == STEREO_PIXBUF_CROSS)
2332 pr->image_height /= 2;
2333 pr->stereo_pixbuf_offset_left = pr->image_height;
2338 pr->image_width = gdk_pixbuf_get_width(pr->pixbuf);
2339 pr->image_height = gdk_pixbuf_get_height(pr->pixbuf);
2340 if (stereo_data == STEREO_PIXBUF_SBS)
2342 pr->image_width /= 2;
2343 pr->stereo_pixbuf_offset_right = pr->image_width;
2345 else if (stereo_data == STEREO_PIXBUF_CROSS)
2347 pr->image_width /= 2;
2348 pr->stereo_pixbuf_offset_left = pr->image_width;
2353 static void pr_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, PrZoomFlags flags)
2355 if (pixbuf) g_object_ref(pixbuf);
2356 if (pr->pixbuf) g_object_unref(pr->pixbuf);
2357 pr->pixbuf = pixbuf;
2363 /* no pixbuf so just clear the window */
2364 pr->image_width = 0;
2365 pr->image_height = 0;
2367 pr->zoom = zoom; /* don't throw away the zoom value, it is set by pixbuf_renderer_move, among others,
2368 and used for pixbuf_renderer_zoom_get */
2370 box = GTK_WIDGET(pr);
2372 #if GTK_CHECK_VERSION(2,20,0)
2373 if (gtk_widget_get_realized(box))
2375 if (GTK_WIDGET_REALIZED(box))
2378 gdk_window_clear(box->window);
2379 pr->renderer->overlay_draw(pr->renderer, 0, 0, pr->viewport_width, pr->viewport_height);
2380 if (pr->renderer2) pr->renderer2->overlay_draw(pr->renderer2, 0, 0, pr->viewport_width, pr->viewport_height);
2383 pr_update_signal(pr);
2388 if (pr->stereo_mode & PR_STEREO_TEMP_DISABLE)
2390 gint disable = !pr->pixbuf || ! GPOINTER_TO_INT(g_object_get_data(G_OBJECT(pr->pixbuf), "stereo_data"));
2391 pr_stereo_temp_disable(pr, disable);
2394 pr_pixbuf_size_sync(pr);
2395 pr_zoom_sync(pr, zoom, flags | PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
2398 void pixbuf_renderer_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom)
2400 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2402 pr_source_tile_unset(pr);
2404 pr_set_pixbuf(pr, pixbuf, zoom, 0);
2406 pr_update_signal(pr);
2409 void pixbuf_renderer_set_pixbuf_lazy(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, gint orientation)
2411 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2413 pr_source_tile_unset(pr);
2415 pr->orientation = orientation;
2416 pr_set_pixbuf(pr, pixbuf, zoom, PR_ZOOM_LAZY);
2418 pr_update_signal(pr);
2421 GdkPixbuf *pixbuf_renderer_get_pixbuf(PixbufRenderer *pr)
2423 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
2428 void pixbuf_renderer_set_orientation(PixbufRenderer *pr, gint orientation)
2430 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2432 pr->orientation = orientation;
2434 pr_pixbuf_size_sync(pr);
2435 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
2438 gint pixbuf_renderer_get_orientation(PixbufRenderer *pr)
2441 return pr->orientation;
2444 void pixbuf_renderer_set_post_process_func(PixbufRenderer *pr, PixbufRendererPostProcessFunc func, gpointer user_data, gboolean slow)
2446 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2448 pr->func_post_process = func;
2449 pr->post_process_user_data = user_data;
2450 pr->post_process_slow = func && slow;
2455 void pixbuf_renderer_move(PixbufRenderer *pr, PixbufRenderer *source)
2458 PixbufRendererScrollResetType scroll_reset;
2460 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2461 g_return_if_fail(IS_PIXBUF_RENDERER(source));
2463 if (pr == source) return;
2465 object = G_OBJECT(pr);
2467 g_object_set(object, "zoom_min", source->zoom_min, NULL);
2468 g_object_set(object, "zoom_max", source->zoom_max, NULL);
2469 g_object_set(object, "loading", source->loading, NULL);
2471 pr->complete = source->complete;
2473 pr->x_scroll = source->x_scroll;
2474 pr->y_scroll = source->y_scroll;
2475 pr->x_mouse = source->x_mouse;
2476 pr->y_mouse = source->y_mouse;
2478 scroll_reset = pr->scroll_reset;
2479 pr->scroll_reset = PR_SCROLL_RESET_NOCHANGE;
2481 pr->func_post_process = source->func_post_process;
2482 pr->post_process_user_data = source->post_process_user_data;
2483 pr->post_process_slow = source->post_process_slow;
2484 pr->orientation = source->orientation;
2486 if (source->source_tiles_enabled)
2488 pr_source_tile_unset(pr);
2490 pr->source_tiles_enabled = source->source_tiles_enabled;
2491 pr->source_tiles_cache_size = source->source_tiles_cache_size;
2492 pr->source_tile_width = source->source_tile_width;
2493 pr->source_tile_height = source->source_tile_height;
2494 pr->image_width = source->image_width;
2495 pr->image_height = source->image_height;
2497 pr->func_tile_request = source->func_tile_request;
2498 pr->func_tile_dispose = source->func_tile_dispose;
2499 pr->func_tile_data = source->func_tile_data;
2501 pr->source_tiles = source->source_tiles;
2502 source->source_tiles = NULL;
2504 pr_zoom_sync(pr, source->zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
2505 pr_redraw(pr, TRUE);
2509 pixbuf_renderer_set_pixbuf(pr, source->pixbuf, source->zoom);
2512 pr->scroll_reset = scroll_reset;
2514 pixbuf_renderer_set_pixbuf(source, NULL, source->zoom);
2515 // pr_queue_clear(source);
2516 // pr_tile_free_all(source);
2519 void pixbuf_renderer_area_changed(PixbufRenderer *pr, gint src_x, gint src_y, gint src_w, gint src_h)
2521 gint x, y, width, height, x1, y1, x2, y2;
2523 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2525 pr_coords_map_orientation_reverse(pr->orientation,
2527 pr->image_width, pr->image_height,
2532 if (pr->source_tiles_enabled)
2534 pr_source_tile_changed(pr, x, y, width, height);
2537 if (pr->scale != 1.0 && pr->zoom_quality != GDK_INTERP_NEAREST)
2539 /* increase region when using a zoom quality that may access surrounding pixels */
2544 x1 = (gint)floor((gdouble)x * pr->scale);
2545 y1 = (gint)floor((gdouble)y * pr->scale * pr->aspect_ratio);
2546 x2 = (gint)ceil((gdouble)(x + width) * pr->scale);
2547 y2 = (gint)ceil((gdouble)(y + height) * pr->scale * pr->aspect_ratio);
2549 pr->renderer->queue(pr->renderer, x1, y1, x2 - x1, y2 - y1, FALSE, TILE_RENDER_AREA, TRUE, TRUE);
2550 if (pr->renderer2) pr->renderer2->queue(pr->renderer2, x1, y1, x2 - x1, y2 - y1, FALSE, TILE_RENDER_AREA, TRUE, TRUE);
2553 void pixbuf_renderer_zoom_adjust(PixbufRenderer *pr, gdouble increment)
2555 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2557 pr_zoom_adjust_real(pr, increment, PR_ZOOM_NONE, 0, 0);
2560 void pixbuf_renderer_zoom_adjust_at_point(PixbufRenderer *pr, gdouble increment, gint x, gint y)
2562 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2564 pr_zoom_adjust_real(pr, increment, PR_ZOOM_CENTER, x, y);
2567 void pixbuf_renderer_zoom_set(PixbufRenderer *pr, gdouble zoom)
2569 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2571 pr_zoom_sync(pr, zoom, PR_ZOOM_NONE, 0, 0);
2574 gdouble pixbuf_renderer_zoom_get(PixbufRenderer *pr)
2576 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
2581 gdouble pixbuf_renderer_zoom_get_scale(PixbufRenderer *pr)
2583 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
2588 void pixbuf_renderer_zoom_set_limits(PixbufRenderer *pr, gdouble min, gdouble max)
2590 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2592 if (min > 1.0 || max < 1.0) return;
2593 if (min < 1.0 && min > -1.0) return;
2594 if (min < -200.0 || max > 200.0) return;
2596 if (pr->zoom_min != min)
2599 g_object_notify(G_OBJECT(pr), "zoom_min");
2601 if (pr->zoom_max != max)
2604 g_object_notify(G_OBJECT(pr), "zoom_max");
2608 static void pr_stereo_set(PixbufRenderer *pr)
2610 if (!pr->renderer) pr->renderer = (void *)renderer_tiles_new(pr);
2612 pr->renderer->stereo_set(pr->renderer, pr->stereo_mode & ~PR_STEREO_MIRROR_RIGHT & ~PR_STEREO_FLIP_RIGHT);
2614 if (pr->stereo_mode & (PR_STEREO_HORIZ | PR_STEREO_VERT | PR_STEREO_FIXED))
2616 if (!pr->renderer2) pr->renderer2 = (void *)renderer_tiles_new(pr);
2617 pr->renderer2->stereo_set(pr->renderer2, (pr->stereo_mode & ~PR_STEREO_MIRROR_LEFT & ~PR_STEREO_FLIP_LEFT) | PR_STEREO_RIGHT);
2621 if (pr->renderer2) pr->renderer2->free(pr->renderer2);
2622 pr->renderer2 = NULL;
2624 if (pr->stereo_mode & PR_STEREO_HALF)
2626 if (pr->stereo_mode & PR_STEREO_HORIZ) pr->aspect_ratio = 2.0;
2627 else if (pr->stereo_mode & PR_STEREO_VERT) pr->aspect_ratio = 0.5;
2628 else pr->aspect_ratio = 1.0;
2632 pr->aspect_ratio = 1.0;
2636 void pixbuf_renderer_stereo_set(PixbufRenderer *pr, gint stereo_mode)
2638 gboolean redraw = !(pr->stereo_mode == stereo_mode) || pr->stereo_temp_disable;
2639 pr->stereo_mode = stereo_mode;
2640 if ((stereo_mode & PR_STEREO_TEMP_DISABLE) && pr->stereo_temp_disable) return;
2642 pr->stereo_temp_disable = FALSE;
2648 pr_size_sync(pr, pr->window_width, pr->window_height); /* recalculate new viewport */
2649 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
2653 void pixbuf_renderer_stereo_fixed_set(PixbufRenderer *pr, gint width, gint height, gint x1, gint y1, gint x2, gint y2)
2655 pr->stereo_fixed_width = width;
2656 pr->stereo_fixed_height = height;
2657 pr->stereo_fixed_x_left = x1;
2658 pr->stereo_fixed_y_left = y1;
2659 pr->stereo_fixed_x_right = x2;
2660 pr->stereo_fixed_y_right = y2;
2663 gint pixbuf_renderer_stereo_get(PixbufRenderer *pr)
2665 return pr->stereo_mode;
2668 static void pr_stereo_temp_disable(PixbufRenderer *pr, gboolean disable)
2670 if (pr->stereo_temp_disable == disable) return;
2671 pr->stereo_temp_disable = disable;
2674 if (!pr->renderer) pr->renderer = (void *)renderer_tiles_new(pr);
2675 pr->renderer->stereo_set(pr->renderer, PR_STEREO_NONE);
2676 if (pr->renderer2) pr->renderer2->free(pr->renderer2);
2677 pr->renderer2 = NULL;
2678 pr->aspect_ratio = 1.0;
2684 pr_size_sync(pr, pr->window_width, pr->window_height); /* recalculate new viewport */
2687 gboolean pixbuf_renderer_get_pixel_colors(PixbufRenderer *pr, gint x_pixel, gint y_pixel,
2688 gint *r_mouse, gint *g_mouse, gint *b_mouse)
2690 GdkPixbuf *pb = pr->pixbuf;
2693 gint map_x, map_y, map_w, map_h;
2695 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2696 g_return_val_if_fail(r_mouse != NULL && g_mouse != NULL && b_mouse != NULL, FALSE);
2698 if (!pr->pixbuf && !pr->source_tiles_enabled)
2706 if (!pb) return FALSE;
2708 pr_tile_region_map_orientation(pr->orientation,
2710 pr->image_width, pr->image_height,
2711 1, 1, /*single pixel */
2715 if (map_x < 0 || map_x > gdk_pixbuf_get_width(pr->pixbuf) - 1) return FALSE;
2716 if (map_y < 0 || map_y > gdk_pixbuf_get_height(pr->pixbuf) - 1) return FALSE;
2718 p_alpha = gdk_pixbuf_get_has_alpha(pb);
2719 prs = gdk_pixbuf_get_rowstride(pb);
2720 p_pix = gdk_pixbuf_get_pixels(pb);
2722 pp = p_pix + map_y * prs + (map_x * (p_alpha ? 4 : 3));
2732 gboolean pixbuf_renderer_get_mouse_position(PixbufRenderer *pr, gint *x_pixel_return, gint *y_pixel_return)
2734 gint x_pixel, y_pixel, x_pixel_clamped, y_pixel_clamped;
2736 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2737 g_return_val_if_fail(x_pixel_return != NULL && y_pixel_return != NULL, FALSE);
2739 if (!pr->pixbuf && !pr->source_tiles_enabled)
2741 *x_pixel_return = -1;
2742 *y_pixel_return = -1;
2746 x_pixel = floor((gdouble)(pr->x_mouse - pr->x_offset + pr->x_scroll) / pr->scale);
2747 y_pixel = floor((gdouble)(pr->y_mouse - pr->y_offset + pr->y_scroll) / pr->scale / pr->aspect_ratio);
2748 x_pixel_clamped = CLAMP(x_pixel, 0, pr->image_width - 1);
2749 y_pixel_clamped = CLAMP(y_pixel, 0, pr->image_height - 1);
2751 if(x_pixel != x_pixel_clamped || y_pixel != y_pixel_clamped)
2753 /* mouse is not on pr */
2754 x_pixel = y_pixel = -1;
2757 *x_pixel_return = x_pixel;
2758 *y_pixel_return = y_pixel;
2763 gboolean pixbuf_renderer_get_image_size(PixbufRenderer *pr, gint *width, gint *height)
2765 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2766 g_return_val_if_fail(width != NULL && height != NULL, FALSE);
2768 if (!pr->pixbuf && !pr->source_tiles_enabled && (!pr->image_width || !pr->image_height))
2775 *width = pr->image_width;
2776 *height = pr->image_height;
2780 gboolean pixbuf_renderer_get_scaled_size(PixbufRenderer *pr, gint *width, gint *height)
2782 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2783 g_return_val_if_fail(width != NULL && height != NULL, FALSE);
2785 if (!pr->pixbuf && !pr->source_tiles_enabled && (!pr->image_width || !pr->image_height))
2793 *height = pr->height;
2797 gboolean pixbuf_renderer_get_visible_rect(PixbufRenderer *pr, GdkRectangle *rect)
2799 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2800 g_return_val_if_fail(rect != NULL, FALSE);
2802 if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
2812 rect->x = (gint)((gdouble)pr->x_scroll / pr->scale);
2813 rect->y = (gint)((gdouble)pr->y_scroll / pr->scale / pr->aspect_ratio);
2814 rect->width = (gint)((gdouble)pr->vis_width / pr->scale);
2815 rect->height = (gint)((gdouble)pr->vis_height / pr->scale / pr->aspect_ratio);
2819 gboolean pixbuf_renderer_get_virtual_rect(PixbufRenderer *pr, GdkRectangle *rect)
2821 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2822 g_return_val_if_fail(rect != NULL, FALSE);
2824 if ((!pr->pixbuf && !pr->source_tiles_enabled))
2833 rect->x = pr->x_scroll;
2834 rect->y = pr->y_scroll;
2835 rect->width = pr->vis_width;
2836 rect->height = pr->vis_height;
2840 void pixbuf_renderer_set_size_early(PixbufRenderer *pr, guint width, guint height)
2845 zoom = pixbuf_renderer_zoom_get(pr);
2846 pr->image_width = width;
2847 pr->image_height = height;
2849 pr_zoom_clamp(pr, zoom, PR_ZOOM_FORCE, NULL);
2854 //pr->width = width;
2855 //pr->height = height;
2858 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */