7 * This software is released under the GNU General Public License (GNU GPL).
8 * Please read the included file COPYING for more information.
9 * This software comes with no warranty of any kind, use at your own risk!
15 #include "pixbuf-renderer.h"
21 /* comment this out if not using this from within Geeqie
22 * defining GQ_BUILD does these things:
23 * - Sets the shift-click scroller pixbuf to a nice icon instead of a black box
29 #include "pixbuf_util.h"
33 /* size to use when breaking up image pane for rendering */
34 #define PR_TILE_SIZE 128
36 /* default size of tile cache (mb) */
37 #define PR_CACHE_SIZE_DEFAULT 8
39 /* default min and max zoom */
40 #define PR_ZOOM_MIN -32.0
41 #define PR_ZOOM_MAX 32.0
43 /* distance to drag mouse to disable image flip */
44 #define PR_DRAG_SCROLL_THRESHHOLD 4
46 /* increase pan rate when holding down shift */
47 #define PR_PAN_SHIFT_MULTIPLIER 6
50 #define PR_SCROLLER_UPDATES_PER_SEC 30
51 #define PR_SCROLLER_DEAD_ZONE 6
53 /* alpha channel checkerboard background (same as gimp) */
54 #define PR_ALPHA_CHECK1 0x00999999
55 #define PR_ALPHA_CHECK2 0x00666666
56 #define PR_ALPHA_CHECK_SIZE 16
58 /* when scaling image to below this size, use nearest pixel for scaling
59 * (below about 4, the other scale types become slow generating their conversion tables)
61 #define PR_MIN_SCALE_SIZE 8
65 TILE_RENDER_NONE = 0, /* do nothing */
66 TILE_RENDER_AREA, /* render an area of the tile */
67 TILE_RENDER_ALL /* render the whole tile */
68 } ImageTileRenderType;
70 typedef struct _ImageTile ImageTile;
71 typedef struct _QueueData QueueData;
75 GdkPixmap *pixmap; /* off screen buffer */
76 GdkPixbuf *pixbuf; /* pixbuf area for zooming */
77 gint x; /* x offset into image */
78 gint y; /* y offset into image */
79 gint w; /* width that is visible (may be less if at edge of image) */
80 gint h; /* height '' */
84 /* render_todo: (explanation)
86 AREA render area of tile, usually only used when loading an image
87 note: will jump to an ALL if render_done is not ALL.
88 ALL render entire tile, if never done before w/ ALL, for expose events *only*
91 ImageTileRenderType render_todo; /* what to do (see above) */
92 ImageTileRenderType render_done; /* highest that has been done before on tile */
97 guint size; /* est. memory used by pixmap and pixbuf */
110 typedef struct _SourceTile SourceTile;
119 typedef struct _OverlayData OverlayData;
129 gint relative; /* x,y coordinates are relative, negative values start bottom right */
131 gint always; /* hide temporarily when scrolling (not yet implemented) */
137 SIGNAL_SCROLL_NOTIFY,
138 SIGNAL_RENDER_COMPLETE,
155 PROP_CACHE_SIZE_DISPLAY,
156 PROP_CACHE_SIZE_TILES,
159 PROP_WINDOW_LIMIT_VALUE,
161 PROP_AUTOFIT_LIMIT_VALUE
166 static guint signals[SIGNAL_COUNT] = { 0 };
167 static GtkEventBoxClass *parent_class = NULL;
171 static void pixbuf_renderer_class_init(PixbufRendererClass *class);
172 static void pixbuf_renderer_init(PixbufRenderer *pr);
173 static void pixbuf_renderer_finalize(GObject *object);
174 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
175 const GValue *value, GParamSpec *pspec);
176 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
177 GValue *value, GParamSpec *pspec);
178 static gint pixbuf_renderer_expose(GtkWidget *widget, GdkEventExpose *event);
180 static void pr_render_complete_signal(PixbufRenderer *pr);
182 static void pr_overlay_list_clear(PixbufRenderer *pr);
183 static void pr_scroller_timer_set(PixbufRenderer *pr, gint start);
184 static void pr_border_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h);
187 static void pr_source_tile_free_all(PixbufRenderer *pr);
188 static void pr_tile_free_all(PixbufRenderer *pr);
189 static void pr_tile_invalidate_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h);
190 static gint pr_tile_is_visible(PixbufRenderer *pr, ImageTile *it);
191 static void pr_queue_clear(PixbufRenderer *pr);
192 static void pr_queue_merge(QueueData *parent, QueueData *qd);
193 static void pr_queue(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
194 gint clamp, ImageTileRenderType render, gint new_data, gint only_existing);
196 static void pr_redraw(PixbufRenderer *pr, gint new_data);
198 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
199 gint force, gint new,
200 gint center_point, gint px, gint py);
202 static void pr_signals_connect(PixbufRenderer *pr);
203 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data);
204 static void pixbuf_renderer_paint(PixbufRenderer *pr, GdkRectangle *area);
208 *-------------------------------------------------------------------
209 * Pixbuf Renderer object
210 *-------------------------------------------------------------------
213 GType pixbuf_renderer_get_type(void)
215 static GType pixbuf_renderer_type = 0;
217 if (!pixbuf_renderer_type)
219 static const GTypeInfo pixbuf_renderer_info =
221 sizeof(PixbufRendererClass),
222 NULL, /* base_init */
223 NULL, /* base_finalize */
224 (GClassInitFunc)pixbuf_renderer_class_init,
225 NULL, /* class_finalize */
226 NULL, /* class_data */
227 sizeof(PixbufRenderer),
229 (GInstanceInitFunc)pixbuf_renderer_init,
232 pixbuf_renderer_type = g_type_register_static(GTK_TYPE_EVENT_BOX, "PixbufRenderer",
233 &pixbuf_renderer_info, 0);
236 return pixbuf_renderer_type;
239 static void pixbuf_renderer_class_init(PixbufRendererClass *class)
241 GObjectClass *gobject_class = G_OBJECT_CLASS(class);
242 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(class);
244 parent_class = g_type_class_peek_parent(class);
246 gobject_class->set_property = pixbuf_renderer_set_property;
247 gobject_class->get_property = pixbuf_renderer_get_property;
249 gobject_class->finalize = pixbuf_renderer_finalize;
251 widget_class->expose_event = pixbuf_renderer_expose;
253 g_object_class_install_property(gobject_class,
255 g_param_spec_double("zoom_min",
261 G_PARAM_READABLE | G_PARAM_WRITABLE));
263 g_object_class_install_property(gobject_class,
265 g_param_spec_double("zoom_max",
271 G_PARAM_READABLE | G_PARAM_WRITABLE));
273 g_object_class_install_property(gobject_class,
275 g_param_spec_uint("zoom_quality",
281 G_PARAM_READABLE | G_PARAM_WRITABLE));
283 g_object_class_install_property(gobject_class,
285 g_param_spec_boolean("zoom_2pass",
289 G_PARAM_READABLE | G_PARAM_WRITABLE));
291 g_object_class_install_property(gobject_class,
293 g_param_spec_boolean("zoom_expand",
294 "Expand image in autozoom.",
297 G_PARAM_READABLE | G_PARAM_WRITABLE));
299 g_object_class_install_property(gobject_class,
301 g_param_spec_uint("dither_quality",
306 GDK_RGB_DITHER_NORMAL,
307 G_PARAM_READABLE | G_PARAM_WRITABLE));
309 g_object_class_install_property(gobject_class,
311 g_param_spec_uint("scroll_reset",
312 "New image scroll reset",
314 PR_SCROLL_RESET_TOPLEFT,
315 PR_SCROLL_RESET_NOCHANGE,
316 PR_SCROLL_RESET_TOPLEFT,
317 G_PARAM_READABLE | G_PARAM_WRITABLE));
319 g_object_class_install_property(gobject_class,
321 g_param_spec_boolean("delay_flip",
322 "Delay image update",
325 G_PARAM_READABLE | G_PARAM_WRITABLE));
327 g_object_class_install_property(gobject_class,
329 g_param_spec_boolean("loading",
330 "Image actively loading",
333 G_PARAM_READABLE | G_PARAM_WRITABLE));
335 g_object_class_install_property(gobject_class,
337 g_param_spec_boolean("complete",
338 "Image rendering complete",
341 G_PARAM_READABLE | G_PARAM_WRITABLE));
343 g_object_class_install_property(gobject_class,
344 PROP_CACHE_SIZE_DISPLAY,
345 g_param_spec_uint("cache_display",
346 "Display cache size MB",
350 PR_CACHE_SIZE_DEFAULT,
351 G_PARAM_READABLE | G_PARAM_WRITABLE));
353 g_object_class_install_property(gobject_class,
354 PROP_CACHE_SIZE_TILES,
355 g_param_spec_uint("cache_tiles",
357 "Number of tiles to retain in memory at any one time.",
360 PR_CACHE_SIZE_DEFAULT,
361 G_PARAM_READABLE | G_PARAM_WRITABLE));
363 g_object_class_install_property(gobject_class,
365 g_param_spec_boolean("window_fit",
366 "Fit window to image size",
369 G_PARAM_READABLE | G_PARAM_WRITABLE));
371 g_object_class_install_property(gobject_class,
373 g_param_spec_boolean("window_limit",
374 "Limit size of parent window",
377 G_PARAM_READABLE | G_PARAM_WRITABLE));
379 g_object_class_install_property(gobject_class,
380 PROP_WINDOW_LIMIT_VALUE,
381 g_param_spec_uint("window_limit_value",
382 "Size limit of parent window",
387 G_PARAM_READABLE | G_PARAM_WRITABLE));
389 g_object_class_install_property(gobject_class,
391 g_param_spec_boolean("autofit_limit",
392 "Limit size of image when autofitting",
395 G_PARAM_READABLE | G_PARAM_WRITABLE));
397 g_object_class_install_property(gobject_class,
398 PROP_AUTOFIT_LIMIT_VALUE,
399 g_param_spec_uint("autofit_limit_value",
400 "Size limit of image when autofitting",
405 G_PARAM_READABLE | G_PARAM_WRITABLE));
408 signals[SIGNAL_ZOOM] =
410 G_OBJECT_CLASS_TYPE(gobject_class),
412 G_STRUCT_OFFSET(PixbufRendererClass, zoom),
414 g_cclosure_marshal_VOID__DOUBLE,
418 signals[SIGNAL_CLICKED] =
419 g_signal_new("clicked",
420 G_OBJECT_CLASS_TYPE(gobject_class),
422 G_STRUCT_OFFSET(PixbufRendererClass, clicked),
424 g_cclosure_marshal_VOID__BOXED,
428 signals[SIGNAL_SCROLL_NOTIFY] =
429 g_signal_new("scroll-notify",
430 G_OBJECT_CLASS_TYPE(gobject_class),
432 G_STRUCT_OFFSET(PixbufRendererClass, scroll_notify),
434 g_cclosure_marshal_VOID__VOID,
437 signals[SIGNAL_RENDER_COMPLETE] =
438 g_signal_new("render-complete",
439 G_OBJECT_CLASS_TYPE(gobject_class),
441 G_STRUCT_OFFSET(PixbufRendererClass, render_complete),
443 g_cclosure_marshal_VOID__VOID,
446 signals[SIGNAL_DRAG] =
448 G_OBJECT_CLASS_TYPE(gobject_class),
450 G_STRUCT_OFFSET(PixbufRendererClass, drag),
452 g_cclosure_marshal_VOID__BOXED,
457 static void pixbuf_renderer_init(PixbufRenderer *pr)
461 box = GTK_WIDGET(pr);
463 pr->zoom_min = PR_ZOOM_MIN;
464 pr->zoom_max = PR_ZOOM_MAX;
465 pr->zoom_quality = GDK_INTERP_BILINEAR;
466 pr->zoom_2pass = FALSE;
471 pr->dither_quality = GDK_RGB_DITHER_NORMAL;
473 pr->scroll_reset = PR_SCROLL_RESET_TOPLEFT;
475 pr->draw_idle_id = -1;
477 pr->tile_width = PR_TILE_SIZE;
478 pr->tile_height = PR_TILE_SIZE;
481 pr->tile_cache_size = 0;
483 pr->tile_cache_max = PR_CACHE_SIZE_DEFAULT;
485 pr->scroller_id = -1;
486 pr->scroller_overlay = -1;
488 pr->source_tiles_enabled = FALSE;
489 pr->source_tiles = NULL;
491 gtk_widget_set_double_buffered(box, FALSE);
492 g_signal_connect_after(G_OBJECT(box), "size_allocate",
493 G_CALLBACK(pr_size_cb), pr);
495 pr_signals_connect(pr);
498 static void pixbuf_renderer_finalize(GObject *object)
502 pr = PIXBUF_RENDERER(object);
505 pr_tile_free_all(pr);
507 if (pr->pixbuf) g_object_unref(pr->pixbuf);
509 pr_scroller_timer_set(pr, FALSE);
510 pr_overlay_list_clear(pr);
512 pr_source_tile_free_all(pr);
515 PixbufRenderer* pixbuf_renderer_new(void)
517 return g_object_new(TYPE_PIXBUF_RENDERER, NULL);
520 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
521 const GValue *value, GParamSpec *pspec)
525 pr = PIXBUF_RENDERER(object);
530 pr->zoom_min = g_value_get_double(value);
533 pr->zoom_max = g_value_get_double(value);
535 case PROP_ZOOM_QUALITY:
536 pr->zoom_quality = g_value_get_uint(value);
538 case PROP_ZOOM_2PASS:
539 pr->zoom_2pass = g_value_get_boolean(value);
541 case PROP_ZOOM_EXPAND:
542 pr->zoom_expand = g_value_get_boolean(value);
544 case PROP_DITHER_QUALITY:
545 pr->dither_quality = g_value_get_uint(value);
547 case PROP_SCROLL_RESET:
548 pr->scroll_reset = g_value_get_uint(value);
550 case PROP_DELAY_FLIP:
551 pr->delay_flip = g_value_get_boolean(value);
554 pr->loading = g_value_get_boolean(value);
557 pr->complete = g_value_get_boolean(value);
559 case PROP_CACHE_SIZE_DISPLAY:
560 pr->tile_cache_max = g_value_get_uint(value);
562 case PROP_CACHE_SIZE_TILES:
563 pr->source_tiles_cache_size = g_value_get_uint(value);
565 case PROP_WINDOW_FIT:
566 pr->window_fit = g_value_get_boolean(value);
568 case PROP_WINDOW_LIMIT:
569 pr->window_limit = g_value_get_boolean(value);
571 case PROP_WINDOW_LIMIT_VALUE:
572 pr->window_limit_size = g_value_get_uint(value);
574 case PROP_AUTOFIT_LIMIT:
575 pr->autofit_limit = g_value_get_boolean(value);
577 case PROP_AUTOFIT_LIMIT_VALUE:
578 pr->autofit_limit_size = g_value_get_uint(value);
581 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
586 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
587 GValue *value, GParamSpec *pspec)
591 pr = PIXBUF_RENDERER(object);
596 g_value_set_double(value, pr->zoom_min);
599 g_value_set_double(value, pr->zoom_max);
601 case PROP_ZOOM_QUALITY:
602 g_value_set_uint(value, pr->zoom_quality);
604 case PROP_ZOOM_2PASS:
605 g_value_set_boolean(value, pr->zoom_2pass);
607 case PROP_ZOOM_EXPAND:
608 g_value_set_boolean(value, pr->zoom_expand);
610 case PROP_DITHER_QUALITY:
611 g_value_set_uint(value, pr->dither_quality);
613 case PROP_SCROLL_RESET:
614 g_value_set_uint(value, pr->scroll_reset);
616 case PROP_DELAY_FLIP:
617 g_value_set_boolean(value, pr->delay_flip);
620 g_value_set_boolean(value, pr->loading);
623 g_value_set_boolean(value, pr->complete);
625 case PROP_CACHE_SIZE_DISPLAY:
626 g_value_set_uint(value, pr->tile_cache_max);
628 case PROP_CACHE_SIZE_TILES:
629 g_value_set_uint(value, pr->source_tiles_cache_size);
631 case PROP_WINDOW_FIT:
632 g_value_set_boolean(value, pr->window_fit);
634 case PROP_WINDOW_LIMIT:
635 g_value_set_boolean(value, pr->window_limit);
637 case PROP_WINDOW_LIMIT_VALUE:
638 g_value_set_uint(value, pr->window_limit_size);
640 case PROP_AUTOFIT_LIMIT:
641 g_value_set_boolean(value, pr->autofit_limit);
643 case PROP_AUTOFIT_LIMIT_VALUE:
644 g_value_set_uint(value, pr->autofit_limit_size);
647 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
652 static gint pixbuf_renderer_expose(GtkWidget *widget, GdkEventExpose *event)
654 if (GTK_WIDGET_DRAWABLE(widget))
656 if (!GTK_WIDGET_NO_WINDOW(widget))
658 if (event->window != widget->window)
662 gdk_window_get_position(event->window, &area.x, &area.y);
664 area.x += event->area.x;
665 area.y += event->area.y;
666 area.width = event->area.width;
667 area.height = event->area.height;
668 pixbuf_renderer_paint(PIXBUF_RENDERER(widget), &area);
672 pixbuf_renderer_paint(PIXBUF_RENDERER(widget), &event->area);
681 *-------------------------------------------------------------------
683 *-------------------------------------------------------------------
686 static void widget_set_cursor(GtkWidget *widget, gint icon)
690 if (!widget->window) return;
698 cursor = gdk_cursor_new (icon);
701 gdk_window_set_cursor(widget->window, cursor);
703 if (cursor) gdk_cursor_unref(cursor);
706 static gint pixmap_calc_size(GdkPixmap *pixmap)
710 d = gdk_drawable_get_depth(pixmap);
711 gdk_drawable_get_size(pixmap, &w, &h);
712 return w * h * (d / 8);
715 static gint pr_clip_region(gint x, gint y, gint w, gint h,
716 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
717 gint *rx, gint *ry, gint *rw, gint *rh)
719 if (clip_x + clip_w <= x ||
721 clip_y + clip_h <= y ||
727 *rx = MAX(x, clip_x);
728 *rw = MIN((x + w), (clip_x + clip_w)) - *rx;
730 *ry = MAX(y, clip_y);
731 *rh = MIN((y + h), (clip_y + clip_h)) - *ry;
736 static gint pr_parent_window_sizable(PixbufRenderer *pr)
738 GdkWindowState state;
740 if (!pr->parent_window) return FALSE;
741 if (!pr->window_fit) return FALSE;
742 if (!GTK_WIDGET(pr)->window) return FALSE;
744 if (!pr->parent_window->window) return FALSE;
745 state = gdk_window_get_state(pr->parent_window->window);
746 if (state & GDK_WINDOW_STATE_MAXIMIZED) return FALSE;
751 static gint pr_parent_window_resize(PixbufRenderer *pr, gint w, gint h)
757 if (!pr_parent_window_sizable(pr)) return FALSE;
759 if (pr->window_limit)
761 gint sw = gdk_screen_width() * pr->window_limit_size / 100;
762 gint sh = gdk_screen_height() * pr->window_limit_size / 100;
768 widget = GTK_WIDGET(pr);
769 parent = GTK_WIDGET(pr->parent_window);
771 w += (parent->allocation.width - widget->allocation.width);
772 h += (parent->allocation.height - widget->allocation.height);
774 gdk_drawable_get_size(parent->window, &ww, &wh);
775 if (w == ww && h == wh) return FALSE;
777 gdk_window_resize(parent->window, w, h);
782 void pixbuf_renderer_set_parent(PixbufRenderer *pr, GtkWindow *window)
784 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
785 g_return_if_fail(window == NULL || GTK_IS_WINDOW(window));
787 pr->parent_window = GTK_WIDGET(window);
790 GtkWindow *pixbuf_renderer_get_parent(PixbufRenderer *pr)
792 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
794 return GTK_WINDOW(pr->parent_window);
799 *-------------------------------------------------------------------
801 *-------------------------------------------------------------------
804 static void pr_overlay_get_position(PixbufRenderer *pr, OverlayData *od,
805 gint *x, gint *y, gint *w, gint *h)
809 pw = gdk_pixbuf_get_width(od->pixbuf);
810 ph = gdk_pixbuf_get_height(od->pixbuf);
816 if (px < 0) px = pr->window_width - pw + px;
817 if (py < 0) py = pr->window_height - ph + py;
826 static void pr_overlay_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
832 box = GTK_WIDGET(pr);
834 work = pr->overlay_list;
844 pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
845 if (pr_clip_region(x, y, w, h, px, py, pw, ph, &rx, &ry, &rw, &rh))
847 if (!pr->overlay_buffer)
849 pr->overlay_buffer = gdk_pixmap_new(((GtkWidget *)pr)->window, pr->tile_width, pr->tile_height, -1);
854 gdk_draw_drawable(pr->overlay_buffer, box->style->fg_gc[GTK_WIDGET_STATE(box)],
856 rx - (pr->x_offset + (it->x - pr->x_scroll)),
857 ry - (pr->y_offset + (it->y - pr->y_scroll)),
859 gdk_draw_pixbuf(pr->overlay_buffer,
860 box->style->fg_gc[GTK_WIDGET_STATE(box)],
864 pr->dither_quality, rx, ry);
865 gdk_draw_drawable(od->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
868 rx - px, ry - py, rw, rh);
872 /* no ImageTile means region may be larger than our scratch buffer */
875 for (sx = rx; sx < rx + rw; sx += pr->tile_width)
876 for(sy = ry; sy < ry + rh; sy += pr->tile_height)
880 sw = MIN(rx + rw - sx, pr->tile_width);
881 sh = MIN(ry + rh - sy, pr->tile_height);
883 gdk_draw_rectangle(pr->overlay_buffer,
884 box->style->bg_gc[GTK_WIDGET_STATE(box)], TRUE,
886 gdk_draw_pixbuf(pr->overlay_buffer,
887 box->style->fg_gc[GTK_WIDGET_STATE(box)],
891 pr->dither_quality, sx, sy);
892 gdk_draw_drawable(od->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
895 sx - px, sy - py, sw, sh);
902 static void pr_overlay_queue_draw(PixbufRenderer *pr, OverlayData *od)
906 pr_overlay_get_position(pr, od, &x, &y, &w, &h);
907 pr_queue(pr, pr->x_scroll - pr->x_offset + x,
908 pr->y_scroll - pr->y_offset + y,
910 FALSE, TILE_RENDER_ALL, FALSE, FALSE);
912 pr_border_draw(pr, x, y, w, h);
915 static void pr_overlay_queue_all(PixbufRenderer *pr)
919 work = pr->overlay_list;
922 OverlayData *od = work->data;
925 pr_overlay_queue_draw(pr, od);
929 static void pr_overlay_update_sizes(PixbufRenderer *pr)
933 work = pr->overlay_list;
936 OverlayData *od = work->data;
939 if (od->relative && od->window)
943 pr_overlay_get_position(pr, od, &x, &y, &w, &h);
944 gdk_window_move_resize(od->window, x, y, w, h);
949 static OverlayData *pr_overlay_find(PixbufRenderer *pr, gint id)
953 work = pr->overlay_list;
956 OverlayData *od = work->data;
959 if (od->id == id) return od;
965 gint pixbuf_renderer_overlay_add(PixbufRenderer *pr, GdkPixbuf *pixbuf, gint x, gint y,
966 gint relative, gint always)
971 GdkWindowAttr attributes;
972 gint attributes_mask;
974 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
975 g_return_val_if_fail(pixbuf != NULL, -1);
978 while (pr_overlay_find(pr, id)) id++;
980 od = g_new0(OverlayData, 1);
983 g_object_ref(G_OBJECT(od->pixbuf));
986 od->relative = relative;
989 pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
991 attributes.window_type = GDK_WINDOW_CHILD;
992 attributes.wclass = GDK_INPUT_OUTPUT;
993 attributes.width = pw;
994 attributes.height = ph;
995 attributes.event_mask = GDK_EXPOSURE_MASK;
998 od->window = gdk_window_new(GTK_WIDGET(pr)->window, &attributes, attributes_mask);
999 gdk_window_set_user_data (od->window, pr);
1000 gdk_window_move(od->window, px, py);
1001 gdk_window_show(od->window);
1003 pr->overlay_list = g_list_append(pr->overlay_list, od);
1005 pr_overlay_queue_draw(pr, od);
1010 static void pr_overlay_free(PixbufRenderer *pr, OverlayData *od)
1012 pr->overlay_list = g_list_remove(pr->overlay_list, od);
1014 if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
1015 if (od->window) gdk_window_destroy(od->window);
1018 if (!pr->overlay_list && pr->overlay_buffer)
1020 g_object_unref(pr->overlay_buffer);
1021 pr->overlay_buffer = NULL;
1025 static void pr_overlay_list_clear(PixbufRenderer *pr)
1027 while (pr->overlay_list)
1031 od = pr->overlay_list->data;
1032 pr_overlay_free(pr, od);
1036 void pixbuf_renderer_overlay_set(PixbufRenderer *pr, gint id, GdkPixbuf *pixbuf, gint x, gint y)
1040 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1042 od = pr_overlay_find(pr, id);
1047 gint px, py, pw, ph;
1049 g_object_ref(G_OBJECT(pixbuf));
1050 g_object_unref(G_OBJECT(od->pixbuf));
1051 od->pixbuf = pixbuf;
1056 pr_overlay_queue_draw(pr, od);
1057 pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
1058 gdk_window_move_resize(od->window, px, py, pw, ph);
1062 pr_overlay_queue_draw(pr, od);
1063 pr_overlay_free(pr, od);
1067 gint pixbuf_renderer_overlay_get(PixbufRenderer *pr, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
1071 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
1073 od = pr_overlay_find(pr, id);
1074 if (!od) return FALSE;
1076 if (pixbuf) *pixbuf = od->pixbuf;
1083 void pixbuf_renderer_overlay_remove(PixbufRenderer *pr, gint id)
1085 pixbuf_renderer_overlay_set(pr, id, NULL, 0, 0);
1089 *-------------------------------------------------------------------
1091 *-------------------------------------------------------------------
1095 static gboolean pr_scroller_update_cb(gpointer data)
1097 PixbufRenderer *pr = data;
1101 /* this was a simple scroll by difference between scroller and mouse position,
1102 * but all this math results in a smoother result and accounts for a dead zone.
1105 if (abs(pr->scroller_xpos - pr->scroller_x) < PR_SCROLLER_DEAD_ZONE)
1111 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1112 x = (pr->scroller_xpos - pr->scroller_x) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1113 x += (x > 0) ? -shift : shift;
1116 if (abs(pr->scroller_ypos - pr->scroller_y) < PR_SCROLLER_DEAD_ZONE)
1122 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1123 y = (pr->scroller_ypos - pr->scroller_y) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1124 y += (y > 0) ? -shift : shift;
1127 if (abs(x) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
1133 xinc = pr->scroller_xinc;
1137 if (xinc < 0) xinc = 0;
1138 if (x < xinc) xinc = x;
1139 if (x > xinc) xinc = MIN(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
1143 if (xinc > 0) xinc = 0;
1144 if (x > xinc) xinc = x;
1145 if (x < xinc) xinc = MAX(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
1149 if (abs(y) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
1155 yinc = pr->scroller_yinc;
1159 if (yinc < 0) yinc = 0;
1160 if (y < yinc) yinc = y;
1161 if (y > yinc) yinc = MIN(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
1165 if (yinc > 0) yinc = 0;
1166 if (y > yinc) yinc = y;
1167 if (y < yinc) yinc = MAX(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
1171 pr->scroller_xinc = xinc;
1172 pr->scroller_yinc = yinc;
1174 xinc = xinc / PR_SCROLLER_UPDATES_PER_SEC;
1175 yinc = yinc / PR_SCROLLER_UPDATES_PER_SEC;
1177 pixbuf_renderer_scroll(pr, xinc, yinc);
1182 static void pr_scroller_timer_set(PixbufRenderer *pr, gint start)
1184 if (pr->scroller_id != -1)
1186 g_source_remove(pr->scroller_id);
1187 pr->scroller_id = -1;
1192 pr->scroller_id = g_timeout_add(1000 / PR_SCROLLER_UPDATES_PER_SEC,
1193 pr_scroller_update_cb, pr);
1197 static void pr_scroller_start(PixbufRenderer *pr, gint x, gint y)
1199 if (pr->scroller_overlay == -1)
1205 pixbuf = pixbuf_inline(PIXBUF_INLINE_SCROLLER);
1207 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 32, 32);
1208 gdk_pixbuf_fill(pixbuf, 0x000000ff);
1210 w = gdk_pixbuf_get_width(pixbuf);
1211 h = gdk_pixbuf_get_height(pixbuf);
1213 pr->scroller_overlay = pixbuf_renderer_overlay_add(pr, pixbuf, x - w / 2, y - h / 2, FALSE, TRUE);
1214 g_object_unref(pixbuf);
1219 pr->scroller_xpos = x;
1220 pr->scroller_ypos = y;
1222 pr_scroller_timer_set(pr, TRUE);
1225 static void pr_scroller_stop(PixbufRenderer *pr)
1227 if (pr->scroller_id == -1) return;
1229 pixbuf_renderer_overlay_remove(pr, pr->scroller_overlay);
1230 pr->scroller_overlay = -1;
1232 pr_scroller_timer_set(pr, FALSE);
1236 *-------------------------------------------------------------------
1238 *-------------------------------------------------------------------
1241 static void pr_border_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
1244 gint rx, ry, rw, rh;
1246 box = GTK_WIDGET(pr);
1248 if (!box->window) return;
1250 if (!pr->pixbuf && !pr->source_tiles_enabled)
1252 if (pr_clip_region(x, y, w, h,
1254 pr->window_width, pr->window_height,
1255 &rx, &ry, &rw, &rh))
1257 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1258 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1263 if (pr->vis_width < pr->window_width)
1265 if (pr->x_offset > 0 &&
1266 pr_clip_region(x, y, w, h,
1268 pr->x_offset, pr->window_height,
1269 &rx, &ry, &rw, &rh))
1271 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1272 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1274 if (pr->window_width - pr->vis_width - pr->x_offset > 0 &&
1275 pr_clip_region(x, y, w, h,
1276 pr->x_offset + pr->vis_width, 0,
1277 pr->window_width - pr->vis_width - pr->x_offset, pr->window_height,
1278 &rx, &ry, &rw, &rh))
1280 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1281 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1284 if (pr->vis_height < pr->window_height)
1286 if (pr->y_offset > 0 &&
1287 pr_clip_region(x, y, w, h,
1289 pr->vis_width, pr->y_offset,
1290 &rx, &ry, &rw, &rh))
1292 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1293 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1295 if (pr->window_height - pr->vis_height - pr->y_offset > 0 &&
1296 pr_clip_region(x, y, w, h,
1297 pr->x_offset, pr->y_offset + pr->vis_height,
1298 pr->vis_width, pr->window_height - pr->vis_height - pr->y_offset,
1299 &rx, &ry, &rw, &rh))
1301 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1302 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1307 static void pr_border_clear(PixbufRenderer *pr)
1309 pr_border_draw(pr, 0, 0, pr->window_width, pr->window_height);
1312 void pixbuf_renderer_set_color(PixbufRenderer *pr, GdkColor *color)
1317 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1319 widget = GTK_WIDGET(pr);
1324 style = gtk_style_copy(gtk_widget_get_style(widget));
1325 slot = &style->bg[GTK_STATE_NORMAL];
1327 slot->red = color->red;
1328 slot->green = color->green;
1329 slot->blue = color->blue;
1332 style = gtk_style_copy(gtk_widget_get_default_style());
1335 gtk_widget_set_style(widget, style);
1337 if (GTK_WIDGET_VISIBLE(widget)) pr_border_clear(pr);
1342 *-------------------------------------------------------------------
1344 *-------------------------------------------------------------------
1347 static void pr_source_tile_free(SourceTile *st)
1351 if (st->pixbuf) g_object_unref(st->pixbuf);
1355 static void pr_source_tile_free_all(PixbufRenderer *pr)
1359 work = pr->source_tiles;
1367 pr_source_tile_free(st);
1370 g_list_free(pr->source_tiles);
1371 pr->source_tiles = NULL;
1374 static void pr_source_tile_unset(PixbufRenderer *pr)
1376 pr_source_tile_free_all(pr);
1377 pr->source_tiles_enabled = FALSE;
1380 static gint pr_source_tile_visible(PixbufRenderer *pr, SourceTile *st)
1382 gint x1, y1, x2, y2;
1384 if (!st) return FALSE;
1386 x1 = (pr->x_scroll / pr->tile_width) * pr->tile_width;
1387 y1 = (pr->y_scroll / pr->tile_height) * pr->tile_height;
1388 x2 = ((pr->x_scroll + pr->vis_width) / pr->tile_width) * pr->tile_width + pr->tile_width;
1389 y2 = ((pr->y_scroll + pr->vis_height) / pr->tile_height) * pr->tile_height + pr->tile_height;
1391 return !((double)st->x * pr->scale > (double)x2 ||
1392 (double)(st->x + pr->source_tile_width) * pr->scale < (double)x1 ||
1393 (double)st->y * pr->scale > (double)y2 ||
1394 (double)(st->y + pr->source_tile_height) * pr->scale < (double)y1);
1397 static SourceTile *pr_source_tile_new(PixbufRenderer *pr, gint x, gint y)
1399 SourceTile *st = NULL;
1402 g_return_val_if_fail(pr->source_tile_width >= 1 && pr->source_tile_height >= 1, NULL);
1404 if (pr->source_tiles_cache_size < 4) pr->source_tiles_cache_size = 4;
1406 count = g_list_length(pr->source_tiles);
1407 if (count >= pr->source_tiles_cache_size)
1411 work = g_list_last(pr->source_tiles);
1412 while (work && count >= pr->source_tiles_cache_size)
1416 needle = work->data;
1419 if (!pr_source_tile_visible(pr, needle))
1421 pr->source_tiles = g_list_remove(pr->source_tiles, needle);
1423 if (pr->func_tile_dispose)
1425 pr->func_tile_dispose(pr, needle->x, needle->y,
1426 pr->source_tile_width, pr->source_tile_height,
1427 needle->pixbuf, pr->func_tile_data);
1436 pr_source_tile_free(needle);
1446 st = g_new0(SourceTile, 1);
1447 st->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8,
1448 pr->source_tile_width, pr->source_tile_height);
1451 st->x = (x / pr->source_tile_width) * pr->source_tile_width;
1452 st->y = (y / pr->source_tile_height) * pr->source_tile_height;
1455 pr->source_tiles = g_list_prepend(pr->source_tiles, st);
1460 static SourceTile *pr_source_tile_request(PixbufRenderer *pr, gint x, gint y)
1464 st = pr_source_tile_new(pr, x, y);
1465 if (!st) return NULL;
1467 if (pr->func_tile_request &&
1468 pr->func_tile_request(pr, st->x, st->y,
1469 pr->source_tile_width, pr->source_tile_height, st->pixbuf, pr->func_tile_data))
1474 pr_tile_invalidate_region(pr, st->x * pr->scale, st->y * pr->scale,
1475 pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
1480 static SourceTile *pr_source_tile_find(PixbufRenderer *pr, gint x, gint y)
1484 work = pr->source_tiles;
1487 SourceTile *st = work->data;
1489 if (x >= st->x && x < st->x + pr->source_tile_width &&
1490 y >= st->y && y < st->y + pr->source_tile_height)
1492 if (work != pr->source_tiles)
1494 pr->source_tiles = g_list_remove_link(pr->source_tiles, work);
1495 pr->source_tiles = g_list_concat(work, pr->source_tiles);
1506 static GList *pr_source_tile_compute_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h, gint request)
1514 if (w > pr->image_width) w = pr->image_width;
1515 if (h > pr->image_height) h = pr->image_height;
1517 sx = (x / pr->source_tile_width) * pr->source_tile_width;
1518 sy = (y / pr->source_tile_height) * pr->source_tile_height;
1520 for (x1 = sx; x1 < x + w; x1+= pr->source_tile_width)
1522 for (y1 = sy; y1 < y + h; y1 += pr->source_tile_height)
1526 st = pr_source_tile_find(pr, x1, y1);
1527 if (!st && request) st = pr_source_tile_request(pr, x1, y1);
1529 if (st) list = g_list_prepend(list, st);
1533 return g_list_reverse(list);
1536 static void pr_source_tile_changed(PixbufRenderer *pr, gint x, gint y, gint width, gint height)
1540 if (width < 1 || height < 1) return;
1542 work = pr->source_tiles;
1546 gint rx, ry, rw, rh;
1551 if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1552 x, y, width, height,
1553 &rx, &ry, &rw, &rh))
1557 pixbuf = gdk_pixbuf_new_subpixbuf(st->pixbuf, rx - st->x, ry - st->y, rw, rh);
1558 if (pr->func_tile_request &&
1559 pr->func_tile_request(pr, rx, ry, rw, rh, pixbuf, pr->func_tile_data))
1561 pr_tile_invalidate_region(pr, rx * pr->scale, ry * pr->scale,
1562 rw * pr->scale, rh * pr->scale);
1564 g_object_unref(pixbuf);
1569 static gint pr_source_tile_render(PixbufRenderer *pr, ImageTile *it,
1570 gint x, gint y, gint w, gint h,
1571 gint new_data, gint fast)
1578 box = GTK_WIDGET(pr);
1580 if (pr->zoom == 1.0 || pr->scale == 1.0)
1582 list = pr_source_tile_compute_region(pr, it->x + x, it->y + y, w, h, TRUE);
1587 gint rx, ry, rw, rh;
1592 if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1593 it->x + x, it->y + y, w, h,
1594 &rx, &ry, &rw, &rh))
1598 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
1599 rx - st->x, ry - st->y, rw, rh);
1601 else /* (pr->zoom == 1.0 || pr->scale == 1.0) */
1603 gdk_draw_pixbuf(it->pixmap,
1604 box->style->fg_gc[GTK_WIDGET_STATE(box)],
1606 rx - st->x, ry - st->y,
1607 rx - it->x, ry - it->y,
1609 pr->dither_quality, rx, ry);
1616 double scale_x, scale_y;
1617 gint sx, sy, sw, sh;
1619 if (pr->image_width == 0 || pr->image_height == 0) return FALSE;
1620 scale_x = (double)pr->width / pr->image_width;
1621 scale_y = (double)pr->height / pr->image_height;
1623 sx = (double)(it->x + x) / scale_x;
1624 sy = (double)(it->y + y) / scale_y;
1625 sw = (double)w / scale_x;
1626 sh = (double)h / scale_y;
1628 if (pr->width < PR_MIN_SCALE_SIZE || pr->height < PR_MIN_SCALE_SIZE) fast = TRUE;
1631 /* draws red over draw region, to check for leaks (regions not filled) */
1632 pixbuf_set_rect_fill(it->pixbuf, x, y, w, h, 255, 0, 0, 255);
1635 list = pr_source_tile_compute_region(pr, sx, sy, sw, sh, TRUE);
1640 gint rx, ry, rw, rh;
1641 gint stx, sty, stw, sth;
1646 stx = floor((double)st->x * scale_x);
1647 sty = floor((double)st->y * scale_y);
1648 stw = ceil ((double)(st->x + pr->source_tile_width) * scale_x) - stx;
1649 sth = ceil ((double)(st->y + pr->source_tile_height) * scale_y) - sty;
1651 if (pr_clip_region(stx, sty, stw, sth,
1652 it->x + x, it->y + y, w, h,
1653 &rx, &ry, &rw, &rh))
1657 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
1658 rx - st->x, ry - st->y, rw, rh);
1665 /* may need to use unfloored stx,sty values here */
1666 offset_x = (double)(stx - it->x);
1667 offset_y = (double)(sty - it->y);
1669 gdk_pixbuf_scale(st->pixbuf, it->pixbuf, rx - it->x, ry - it->y, rw, rh,
1670 (double) 0.0 + offset_x,
1671 (double) 0.0 + offset_y,
1673 (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality);
1685 void pixbuf_renderer_set_tiles(PixbufRenderer *pr, gint width, gint height,
1686 gint tile_width, gint tile_height, gint cache_size,
1687 PixbufRendererTileRequestFunc func_request,
1688 PixbufRendererTileDisposeFunc func_dispose,
1692 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1693 g_return_if_fail(tile_width >= 32 && tile_width >= 32);
1694 g_return_if_fail(width >= 32 && height > 32);
1695 g_return_if_fail(func_request != NULL);
1697 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1700 pr_source_tile_unset(pr);
1702 if (cache_size < 4) cache_size = 4;
1704 pr->source_tiles_enabled = TRUE;
1705 pr->source_tiles_cache_size = cache_size;
1706 pr->source_tile_width = tile_width;
1707 pr->source_tile_height = tile_height;
1709 pr->image_width = width;
1710 pr->image_height = height;
1712 pr->func_tile_request = func_request;
1713 pr->func_tile_dispose = func_dispose;
1714 pr->func_tile_data = user_data;
1716 pr_zoom_sync(pr, zoom, TRUE, TRUE, FALSE, 0, 0);
1717 pr_redraw(pr, TRUE);
1720 void pixbuf_renderer_set_tiles_size(PixbufRenderer *pr, gint width, gint height)
1722 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1723 g_return_if_fail(width >= 32 && height > 32);
1725 if (!pr->source_tiles_enabled) return;
1726 if (pr->image_width == width && pr->image_height == height) return;
1728 pr->image_width = width;
1729 pr->image_height = height;
1731 pr_zoom_sync(pr, pr->zoom, TRUE, FALSE, FALSE, 0, 0);
1734 gint pixbuf_renderer_get_tiles(PixbufRenderer *pr)
1736 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
1738 return pr->source_tiles_enabled;
1741 static void pr_zoom_adjust_real(PixbufRenderer *pr, gdouble increment,
1742 gint center_point, gint x, gint y)
1744 gdouble zoom = pr->zoom;
1746 if (increment == 0.0) return;
1750 if (pr->scale < 1.0)
1752 zoom = 0.0 - 1.0 / pr->scale;
1760 if (increment < 0.0)
1762 if (zoom >= 1.0 && zoom + increment < 1.0)
1764 zoom = zoom + increment - 2.0;
1768 zoom = zoom + increment;
1773 if (zoom <= -1.0 && zoom + increment > -1.0)
1775 zoom = zoom + increment + 2.0;
1779 zoom = zoom + increment;
1783 pr_zoom_sync(pr, zoom, FALSE, FALSE, center_point, x, y);
1787 *-------------------------------------------------------------------
1789 *-------------------------------------------------------------------
1792 static ImageTile *pr_tile_new(gint x, gint y, gint width, gint height)
1796 it = g_new0(ImageTile, 1);
1803 it->render_done = TILE_RENDER_NONE;
1808 static void pr_tile_free(ImageTile *it)
1812 if (it->pixbuf) gdk_pixbuf_unref(it->pixbuf);
1813 if (it->pixmap) g_object_unref(it->pixmap);
1818 static void pr_tile_free_all(PixbufRenderer *pr)
1833 g_list_free(pr->tiles);
1835 pr->tile_cache_size = 0;
1838 static ImageTile *pr_tile_add(PixbufRenderer *pr, gint x, gint y)
1842 it = pr_tile_new(x, y, pr->tile_width, pr->tile_height);
1844 if (it->x + it->w > pr->width) it->w = pr->width - it->x;
1845 if (it->y + it->h > pr->height) it->h = pr->height - it->y;
1847 pr->tiles = g_list_prepend(pr->tiles, it);
1848 pr->tile_cache_size += it->size;
1853 static void pr_tile_remove(PixbufRenderer *pr, ImageTile *it)
1857 QueueData *qd = it->qd;
1860 pr->draw_queue = g_list_remove(pr->draw_queue, qd);
1866 QueueData *qd = it->qd2;
1869 pr->draw_queue_2pass = g_list_remove(pr->draw_queue_2pass, qd);
1873 pr->tiles = g_list_remove(pr->tiles, it);
1874 pr->tile_cache_size -= it->size;
1879 static void pr_tile_free_space(PixbufRenderer *pr, guint space, ImageTile *it)
1884 work = g_list_last(pr->tiles);
1886 if (pr->source_tiles_enabled && pr->scale < 1.0)
1890 tiles = (pr->vis_width / pr->tile_width + 1) * (pr->vis_height / pr->tile_height + 1);
1891 tile_max = MAX(tiles * pr->tile_width * pr->tile_height * 3,
1892 (gint)((double)pr->tile_cache_max * 1048576.0 * pr->scale));
1896 tile_max = pr->tile_cache_max * 1048576;
1899 while (work && pr->tile_cache_size + space > tile_max)
1903 needle = work->data;
1906 ((!needle->qd && !needle->qd2) || !pr_tile_is_visible(pr, needle))) pr_tile_remove(pr, needle);
1910 static void pr_tile_invalidate_all(PixbufRenderer *pr)
1922 it->render_done = TILE_RENDER_NONE;
1923 it->render_todo = TILE_RENDER_ALL;
1926 it->w = MIN(pr->tile_width, pr->width - it->x);
1927 it->h = MIN(pr->tile_height, pr->height - it->y);
1931 static void pr_tile_invalidate_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
1937 x1 = (gint)floor(x / pr->tile_width) * pr->tile_width;
1938 x2 = (gint)ceil((x + w) / pr->tile_width) * pr->tile_width;
1940 y1 = (gint)floor(y / pr->tile_height) * pr->tile_height;
1941 y2 = (gint)ceil((y + h) / pr->tile_height) * pr->tile_height;
1951 if (it->x < x2 && it->x + it->w > x1 &&
1952 it->y < y2 && it->y + it->h > y1)
1954 it->render_done = TILE_RENDER_NONE;
1955 it->render_todo = TILE_RENDER_ALL;
1960 static ImageTile *pr_tile_get(PixbufRenderer *pr, gint x, gint y, gint only_existing)
1970 if (it->x == x && it->y == y)
1972 pr->tiles = g_list_delete_link(pr->tiles, work);
1973 pr->tiles = g_list_prepend(pr->tiles, it);
1980 if (only_existing) return NULL;
1982 return pr_tile_add(pr, x, y);
1985 static void pr_tile_prepare(PixbufRenderer *pr, ImageTile *it)
1992 pixmap = gdk_pixmap_new(((GtkWidget *)pr)->window, pr->tile_width, pr->tile_height, -1);
1994 size = pixmap_calc_size(pixmap);
1995 pr_tile_free_space(pr, size, it);
1997 it->pixmap = pixmap;
1999 pr->tile_cache_size += size;
2002 if ((pr->zoom != 1.0 || pr->source_tiles_enabled || (pr->pixbuf && gdk_pixbuf_get_has_alpha(pr->pixbuf)) ) &&
2010 pixbuf = gdk_pixbuf_new(gdk_pixbuf_get_colorspace(pr->pixbuf),
2011 gdk_pixbuf_get_has_alpha(pr->pixbuf),
2012 gdk_pixbuf_get_bits_per_sample(pr->pixbuf),
2013 pr->tile_width, pr->tile_height);
2017 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, pr->tile_width, pr->tile_height);
2020 size = gdk_pixbuf_get_rowstride(pixbuf) * pr->tile_height;
2021 pr_tile_free_space(pr, size, it);
2023 it->pixbuf = pixbuf;
2025 pr->tile_cache_size += size;
2030 *-------------------------------------------------------------------
2032 *-------------------------------------------------------------------
2035 static void pr_tile_render(PixbufRenderer *pr, ImageTile *it,
2036 gint x, gint y, gint w, gint h,
2037 gint new_data, gint fast)
2043 if (it->render_todo == TILE_RENDER_NONE && it->pixmap && !new_data) return;
2045 if (it->render_done != TILE_RENDER_ALL)
2051 if (!fast) it->render_done = TILE_RENDER_ALL;
2053 else if (it->render_todo != TILE_RENDER_AREA)
2055 if (!fast) it->render_todo = TILE_RENDER_NONE;
2059 if (!fast) it->render_todo = TILE_RENDER_NONE;
2061 if (new_data) it->blank = FALSE;
2063 pr_tile_prepare(pr, it);
2064 has_alpha = (pr->pixbuf && gdk_pixbuf_get_has_alpha(pr->pixbuf));
2066 box = GTK_WIDGET(pr);
2068 /* FIXME checker colors for alpha should be configurable,
2069 * also should be drawn for blank = TRUE
2074 /* no data, do fast rect fill */
2075 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
2076 0, 0, it->w, it->h);
2078 else if (pr->source_tiles_enabled)
2080 draw = pr_source_tile_render(pr, it, x, y, w, h, new_data, fast);
2082 else if (pr->zoom == 1.0 || pr->scale == 1.0)
2086 gdk_pixbuf_composite_color(pr->pixbuf, it->pixbuf, x, y, w, h,
2087 (double) 0.0 - it->x,
2088 (double) 0.0 - it->y,
2089 1.0, 1.0, GDK_INTERP_NEAREST,
2090 255, it->x + x, it->y + y,
2091 PR_ALPHA_CHECK_SIZE, PR_ALPHA_CHECK1, PR_ALPHA_CHECK2);
2096 /* faster, simple */
2097 gdk_draw_pixbuf(it->pixmap,
2098 box->style->fg_gc[GTK_WIDGET_STATE(box)],
2100 it->x + x, it->y + y,
2103 pr->dither_quality, it->x + x, it->y + y);
2108 double scale_x, scale_y;
2110 if (pr->image_width == 0 || pr->image_height == 0) return;
2111 scale_x = (double)pr->width / pr->image_width;
2112 scale_y = (double)pr->height / pr->image_height;
2114 /* HACK: The pixbuf scalers get kinda buggy(crash) with extremely
2115 * small sizes for anything but GDK_INTERP_NEAREST
2117 if (pr->width < PR_MIN_SCALE_SIZE || pr->height < PR_MIN_SCALE_SIZE) fast = TRUE;
2121 gdk_pixbuf_scale(pr->pixbuf, it->pixbuf, x, y, w, h,
2122 (double) 0.0 - it->x,
2123 (double) 0.0 - it->y,
2125 (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality);
2129 gdk_pixbuf_composite_color(pr->pixbuf, it->pixbuf, x, y, w, h,
2130 (double) 0.0 - it->x,
2131 (double) 0.0 - it->y,
2133 (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality,
2134 255, it->x + x, it->y + y,
2135 PR_ALPHA_CHECK_SIZE, PR_ALPHA_CHECK1, PR_ALPHA_CHECK2);
2140 if (draw && it->pixbuf && !it->blank)
2142 gdk_draw_pixbuf(it->pixmap,
2143 box->style->fg_gc[GTK_WIDGET_STATE(box)],
2148 pr->dither_quality, it->x + x, it->y + y);
2152 /* enable this line for debugging the edges of tiles */
2153 gdk_draw_rectangle(it->pixmap, box->style->white_gc,
2154 FALSE, 0, 0, it->w, it->h);
2159 static void pr_tile_expose(PixbufRenderer *pr, ImageTile *it,
2160 gint x, gint y, gint w, gint h,
2161 gint new_data, gint fast)
2165 pr_tile_render(pr, it, x, y, w, h, new_data, fast);
2167 box = GTK_WIDGET(pr);
2169 gdk_draw_drawable(box->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
2171 pr->x_offset + (it->x - pr->x_scroll) + x, pr->y_offset + (it->y - pr->y_scroll) + y, w, h);
2173 if (pr->overlay_list)
2175 pr_overlay_draw(pr, pr->x_offset + (it->x - pr->x_scroll) + x,
2176 pr->y_offset + (it->y - pr->y_scroll) + y,
2183 static gint pr_tile_is_visible(PixbufRenderer *pr, ImageTile *it)
2185 return (it->x + it->w >= pr->x_scroll && it->x < pr->x_scroll + pr->vis_width &&
2186 it->y + it->h >= pr->y_scroll && it->y < pr->y_scroll + pr->vis_height);
2190 *-------------------------------------------------------------------
2192 *-------------------------------------------------------------------
2195 static gint pr_queue_draw_idle_cb(gpointer data)
2197 PixbufRenderer *pr = data;
2201 if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
2202 (!pr->draw_queue && !pr->draw_queue_2pass) ||
2203 pr->draw_idle_id == -1)
2205 pr_render_complete_signal(pr);
2207 pr->draw_idle_id = -1;
2213 qd = pr->draw_queue->data;
2214 fast = (pr->zoom_2pass && pr->zoom_quality != GDK_INTERP_NEAREST && pr->scale != 1.0);
2220 /* still loading, wait till done (also drops the higher priority) */
2222 pr->draw_idle_id = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE,
2223 pr_queue_draw_idle_cb, pr, NULL);
2224 pr->draw_idle_high = FALSE;
2228 qd = pr->draw_queue_2pass->data;
2232 if (GTK_WIDGET_REALIZED(pr))
2234 if (pr_tile_is_visible(pr, qd->it))
2236 pr_tile_expose(pr, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
2238 else if (qd->new_data)
2240 /* if new pixel data, and we already have a pixmap, update the tile */
2241 qd->it->blank = FALSE;
2242 if (qd->it->pixmap && qd->it->render_done == TILE_RENDER_ALL)
2244 pr_tile_render(pr, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
2252 pr->draw_queue = g_list_remove(pr->draw_queue, qd);
2257 pr_queue_merge(qd->it->qd2, qd);
2263 pr->draw_queue_2pass = g_list_append(pr->draw_queue_2pass, qd);
2274 pr->draw_queue_2pass = g_list_remove(pr->draw_queue_2pass, qd);
2278 if (!pr->draw_queue && !pr->draw_queue_2pass)
2280 pr_render_complete_signal(pr);
2282 pr->draw_idle_id = -1;
2289 static void pr_queue_list_free(GList *list)
2309 static void pr_queue_clear(PixbufRenderer *pr)
2311 pr_queue_list_free(pr->draw_queue);
2312 pr->draw_queue = NULL;
2314 pr_queue_list_free(pr->draw_queue_2pass);
2315 pr->draw_queue_2pass = NULL;
2317 if (pr->draw_idle_id != -1) g_source_remove(pr->draw_idle_id);
2318 pr->draw_idle_id = -1;
2321 static void pr_queue_merge(QueueData *parent, QueueData *qd)
2323 if (parent->x + parent->w < qd->x + qd->w)
2325 parent->w += (qd->x + qd->w) - (parent->x + parent->w);
2327 if (parent->x > qd->x)
2329 parent->w += parent->x - qd->x;
2333 if (parent->y + parent->h < qd->y + qd->h)
2335 parent->h += (qd->y + qd->h) - (parent->y + parent->h);
2337 if (parent->y > qd->y)
2339 parent->h += parent->y - qd->y;
2343 parent->new_data |= qd->new_data;
2346 static gint pr_clamp_to_visible(PixbufRenderer *pr, gint *x, gint *y, gint *w, gint *h)
2354 vh = pr->vis_height;
2359 if (*x + *w < vx || *x > vx + vw || *y + *h < vy || *y > vy + vh) return FALSE;
2362 nx = CLAMP(*x, vx, vx + vw);
2363 nw = CLAMP(*w - (nx - *x), 1, vw);
2365 ny = CLAMP(*y, vy, vy + vh);
2366 nh = CLAMP(*h - (ny - *y), 1, vh);
2376 static gint pr_queue_to_tiles(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
2377 gint clamp, ImageTileRenderType render, gint new_data, gint only_existing)
2383 if (clamp && !pr_clamp_to_visible(pr, &x, &y, &w, &h)) return FALSE;
2385 x1 = (gint)floor(x / pr->tile_width) * pr->tile_width;
2386 x2 = (gint)ceil((x + w) / pr->tile_width) * pr->tile_width;
2388 y1 = (gint)floor(y / pr->tile_height) * pr->tile_height;
2389 y2 = (gint)ceil((y + h) / pr->tile_height) * pr->tile_height;
2391 for (j = y1; j <= y2; j += pr->tile_height)
2393 for (i = x1; i <= x2; i += pr->tile_width)
2397 it = pr_tile_get(pr, i, j,
2399 (i + pr->tile_width < pr->x_scroll ||
2400 i > pr->x_scroll + pr->vis_width ||
2401 j + pr->tile_height < pr->y_scroll ||
2402 j > pr->y_scroll + pr->vis_height)));
2407 if ((render == TILE_RENDER_ALL && it->render_done != TILE_RENDER_ALL) ||
2408 (render == TILE_RENDER_AREA && it->render_todo != TILE_RENDER_ALL))
2410 it->render_todo = render;
2413 qd = g_new(QueueData, 1);
2415 qd->new_data = new_data;
2425 qd->w = x + w - i - qd->x;
2426 if (qd->x + qd->w > pr->tile_width) qd->w = pr->tile_width - qd->x;
2436 qd->h = y + h - j - qd->y;
2437 if (qd->y + qd->h > pr->tile_height) qd->h = pr->tile_height - qd->y;
2439 if (qd->w < 1 || qd->h < 1)
2445 pr_queue_merge(it->qd, qd);
2451 pr->draw_queue = g_list_append(pr->draw_queue, qd);
2460 static void pr_queue(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
2461 gint clamp, ImageTileRenderType render, gint new_data, gint only_existing)
2465 nx = CLAMP(x, 0, pr->width - 1);
2466 ny = CLAMP(y, 0, pr->height - 1);
2469 w = CLAMP(w, 0, pr->width - nx);
2470 h = CLAMP(h, 0, pr->height - ny);
2471 if (w < 1 || h < 1) return;
2473 if (pr_queue_to_tiles(pr, nx, ny, w, h, clamp, render, new_data, only_existing) &&
2474 ((!pr->draw_queue && !pr->draw_queue_2pass) || pr->draw_idle_id == -1 || !pr->draw_idle_high))
2476 if (pr->draw_idle_id != -1) g_source_remove(pr->draw_idle_id);
2477 pr->draw_idle_id = g_idle_add_full(GDK_PRIORITY_REDRAW,
2478 pr_queue_draw_idle_cb, pr, NULL);
2479 pr->draw_idle_high = TRUE;
2483 static void pr_redraw(PixbufRenderer *pr, gint new_data)
2486 pr_queue(pr, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, new_data, FALSE);
2490 *-------------------------------------------------------------------
2492 *-------------------------------------------------------------------
2495 static void pr_update_signal(PixbufRenderer *pr)
2498 printf("FIXME: send updated signal\n");
2502 static void pr_zoom_signal(PixbufRenderer *pr)
2504 g_signal_emit(pr, signals[SIGNAL_ZOOM], 0, pr->zoom);
2507 static void pr_clicked_signal(PixbufRenderer *pr, GdkEventButton *bevent)
2509 g_signal_emit(pr, signals[SIGNAL_CLICKED], 0, bevent);
2512 static void pr_scroll_notify_signal(PixbufRenderer *pr)
2514 g_signal_emit(pr, signals[SIGNAL_SCROLL_NOTIFY], 0);
2517 static void pr_render_complete_signal(PixbufRenderer *pr)
2521 g_signal_emit(pr, signals[SIGNAL_RENDER_COMPLETE], 0);
2522 g_object_set(G_OBJECT(pr), "complete", TRUE, NULL);
2526 static void pr_drag_signal(PixbufRenderer *pr, GdkEventButton *bevent)
2528 g_signal_emit(pr, signals[SIGNAL_DRAG], 0, bevent);
2532 *-------------------------------------------------------------------
2534 *-------------------------------------------------------------------
2537 static gint pr_scroll_clamp(PixbufRenderer *pr)
2542 if (pr->zoom == 0.0)
2550 old_xs = pr->x_scroll;
2551 old_ys = pr->y_scroll;
2553 if (pr->x_offset > 0)
2559 pr->x_scroll = CLAMP(pr->x_scroll, 0, pr->width - pr->vis_width);
2562 if (pr->y_offset > 0)
2568 pr->y_scroll = CLAMP(pr->y_scroll, 0, pr->height - pr->vis_height);
2571 return (old_xs != pr->x_scroll || old_ys != pr->y_scroll);
2574 static gint pr_size_clamp(PixbufRenderer *pr)
2576 gint old_vw, old_vh;
2578 old_vw = pr->vis_width;
2579 old_vh = pr->vis_height;
2581 if (pr->width < pr->window_width)
2583 pr->vis_width = pr->width;
2584 pr->x_offset = (pr->window_width - pr->width) / 2;
2588 pr->vis_width = pr->window_width;
2592 if (pr->height < pr->window_height)
2594 pr->vis_height = pr->height;
2595 pr->y_offset = (pr->window_height - pr->height) / 2;
2599 pr->vis_height = pr->window_height;
2603 return (old_vw != pr->vis_width || old_vh != pr->vis_height);
2606 static gint pr_zoom_clamp(PixbufRenderer *pr, gdouble zoom,
2607 gint force, gint new, gint invalidate,
2614 zoom = CLAMP(zoom, pr->zoom_min, pr->zoom_max);
2616 if (pr->zoom == zoom && !force) return FALSE;
2618 w = pr->image_width;
2619 h = pr->image_height;
2621 if (zoom == 0.0 && !pr->pixbuf)
2625 else if (zoom == 0.0)
2631 sizeable = (new && pr_parent_window_sizable(pr));
2635 max_w = gdk_screen_width();
2636 max_h = gdk_screen_height();
2638 if (pr->window_limit)
2640 max_w = max_w * pr->window_limit_size / 100;
2641 max_h = max_h * pr->window_limit_size / 100;
2646 max_w = pr->window_width;
2647 max_h = pr->window_height;
2650 if ((pr->zoom_expand && !sizeable) || w > max_w || h > max_h)
2652 if ((gdouble)max_w / w > (gdouble)max_h / h)
2654 scale = (gdouble)max_h / h;
2656 w = w * scale + 0.5;
2657 if (w > max_w) w = max_w;
2661 scale = (gdouble)max_w / w;
2663 h = h * scale + 0.5;
2664 if (h > max_h) h = max_h;
2667 if (pr->autofit_limit)
2669 gdouble factor = (gdouble)pr->autofit_limit_size / 100;
2670 w = w * factor + 0.5;
2671 h = h * factor + 0.5;
2672 scale = scale * factor;
2683 else if (zoom > 0.0) /* zoom orig, in */
2691 scale = 1.0 / (0.0 - zoom);
2696 invalid = (pr->width != w || pr->height != h);
2703 if (invalidate || invalid)
2705 pr_tile_invalidate_all(pr);
2706 pr_redraw(pr, TRUE);
2708 if (redrawn) *redrawn = (invalidate || invalid);
2713 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
2714 gint force, gint new,
2715 gint center_point, gint px, gint py)
2718 gint old_cx, old_cy;
2721 gint redrawn = FALSE;
2723 old_scale = pr->scale;
2726 px = CLAMP(px, 0, pr->width);
2727 py = CLAMP(py, 0, pr->height);
2728 old_cx = pr->x_scroll + (px - pr->x_offset);
2729 old_cy = pr->y_scroll + (py - pr->y_offset);
2734 old_cx = pr->x_scroll + pr->vis_width / 2;
2735 old_cy = pr->y_scroll + pr->vis_height / 2;
2738 if (!pr_zoom_clamp(pr, zoom, force, new, force, &redrawn)) return;
2740 clamped = pr_size_clamp(pr);
2741 sized = pr_parent_window_resize(pr, pr->width, pr->height);
2745 switch (pr->scroll_reset)
2747 case PR_SCROLL_RESET_NOCHANGE:
2748 /* maintain old scroll position, do nothing */
2750 case PR_SCROLL_RESET_CENTER:
2751 /* center new image */
2752 pr->x_scroll = ((double)pr->image_width / 2.0 * pr->scale) - pr->vis_width / 2;
2753 pr->y_scroll = ((double)pr->image_height / 2.0 * pr->scale) - pr->vis_height / 2;
2755 case PR_SCROLL_RESET_TOPLEFT:
2757 /* reset to upper left */
2765 /* user zoom does not force, so keep visible center point */
2768 pr->x_scroll = old_cx / old_scale * pr->scale - (px - pr->x_offset);
2769 pr->y_scroll = old_cy / old_scale * pr->scale - (py - pr->y_offset);
2773 pr->x_scroll = old_cx / old_scale * pr->scale - (pr->vis_width / 2);
2774 pr->y_scroll = old_cy / old_scale * pr->scale - (pr->vis_height / 2);
2778 pr_scroll_clamp(pr);
2780 /* If the window was not sized, redraw the image - we know there will be no size/expose signal.
2781 * But even if a size is claimed, there is no guarantee that the window manager will allow it,
2782 * so redraw the window anyway :/
2784 if (sized || clamped) pr_border_clear(pr);
2785 pr_redraw(pr, redrawn);
2787 pr_scroll_notify_signal(pr);
2789 pr_update_signal(pr);
2792 static void pr_size_sync(PixbufRenderer *pr, gint new_width, gint new_height)
2794 gint zoom_changed = FALSE;
2796 if (pr->window_width == new_width && pr->window_height == new_height) return;
2798 pr->window_width = new_width;
2799 pr->window_height = new_height;
2801 if (pr->zoom == 0.0)
2803 gdouble old_scale = pr->scale;
2804 pr_zoom_clamp(pr, 0.0, TRUE, FALSE, FALSE, NULL);
2805 zoom_changed = (old_scale != pr->scale);
2809 pr_scroll_clamp(pr);
2811 pr_overlay_update_sizes(pr);
2813 /* ensure scroller remains visible */
2814 if (pr->scroller_overlay != -1)
2816 gint update = FALSE;
2818 if (pr->scroller_x > new_width)
2820 pr->scroller_x = new_width;
2821 pr->scroller_xpos = new_width;
2824 if (pr->scroller_y > new_height)
2826 pr->scroller_y = new_height;
2827 pr->scroller_ypos = new_height;
2835 if (pixbuf_renderer_overlay_get(pr, pr->scroller_overlay, &pixbuf, NULL, NULL))
2839 w = gdk_pixbuf_get_width(pixbuf);
2840 h = gdk_pixbuf_get_height(pixbuf);
2841 pixbuf_renderer_overlay_set(pr, pr->scroller_overlay, pixbuf,
2842 pr->scroller_x - w / 2, pr->scroller_y - h / 2);
2847 pr_border_clear(pr);
2849 pr_scroll_notify_signal(pr);
2850 if (zoom_changed) pr_zoom_signal(pr);
2851 pr_update_signal(pr);
2854 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
2856 PixbufRenderer *pr = data;
2858 pr_size_sync(pr, allocation->width, allocation->height);
2861 static void pixbuf_renderer_paint(PixbufRenderer *pr, GdkRectangle *area)
2865 pr_border_draw(pr, area->x, area->y, area->width, area->height);
2867 x = MAX(0, (gint)area->x - pr->x_offset + pr->x_scroll);
2868 y = MAX(0, (gint)area->y - pr->y_offset + pr->y_scroll);
2871 MIN((gint)area->width, pr->width - x),
2872 MIN((gint)area->height, pr->height - y),
2873 FALSE, TILE_RENDER_ALL, FALSE, FALSE);
2877 *-------------------------------------------------------------------
2879 *-------------------------------------------------------------------
2882 void pixbuf_renderer_scroll(PixbufRenderer *pr, gint x, gint y)
2888 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2890 if (!pr->pixbuf && !pr->source_tiles_enabled) return;
2892 old_x = pr->x_scroll;
2893 old_y = pr->y_scroll;
2898 pr_scroll_clamp(pr);
2899 if (pr->x_scroll == old_x && pr->y_scroll == old_y) return;
2901 pr_scroll_notify_signal(pr);
2903 x_off = pr->x_scroll - old_x;
2904 y_off = pr->y_scroll - old_y;
2906 w = pr->vis_width - abs(x_off);
2907 h = pr->vis_height - abs(y_off);
2911 /* scrolled completely to new material */
2912 pr_queue(pr, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
2945 box = GTK_WIDGET(pr);
2947 gc = gdk_gc_new(box->window);
2948 gdk_gc_set_exposures(gc, TRUE);
2949 gdk_draw_drawable(box->window, gc,
2951 x2 + pr->x_offset, y2 + pr->y_offset,
2952 x1 + pr->x_offset, y1 + pr->y_offset, w, h);
2955 if (pr->overlay_list)
2957 pr_overlay_queue_all(pr);
2960 w = pr->vis_width - w;
2961 h = pr->vis_height - h;
2966 x_off > 0 ? pr->x_scroll + (pr->vis_width - w) : pr->x_scroll, pr->y_scroll,
2967 w, pr->vis_height, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
2971 /* FIXME, to optimize this, remove overlap */
2973 pr->x_scroll, y_off > 0 ? pr->y_scroll + (pr->vis_height - h) : pr->y_scroll,
2974 pr->vis_width, h, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
2977 /* process exposures here, "expose_event" seems to miss a few with obstructed windows */
2978 while ((event = gdk_event_get_graphics_expose(box->window)) != NULL)
2980 pixbuf_renderer_paint(pr, &event->expose.area);
2982 if (event->expose.count == 0)
2984 gdk_event_free(event);
2987 gdk_event_free(event);
2992 void pixbuf_renderer_scroll_to_point(PixbufRenderer *pr, gint x, gint y,
2993 gdouble x_align, gdouble y_align)
2998 x_align = CLAMP(x_align, 0.0, 1.0);
2999 y_align = CLAMP(y_align, 0.0, 1.0);
3001 ax = (gdouble)pr->vis_width * x_align;
3002 ay = (gdouble)pr->vis_height * y_align;
3004 px = (gdouble)x * pr->scale - (pr->x_scroll + ax);
3005 py = (gdouble)y * pr->scale - (pr->y_scroll + ay);
3007 pixbuf_renderer_scroll(pr, px, py);
3010 /* get or set coordinates of viewport center in the image, in range 0.0 - 1.0 */
3012 void pixbuf_renderer_get_scroll_center(PixbufRenderer *pr, gdouble *x, gdouble *y)
3016 src_x = pr->x_scroll + pr->vis_width / 2;
3017 src_y = pr->y_scroll + pr->vis_height / 2;
3019 *x = (gdouble)src_x / pr->width;
3020 *y = (gdouble)src_y / pr->height;
3023 void pixbuf_renderer_set_scroll_center(PixbufRenderer *pr, gdouble x, gdouble y)
3025 gdouble dst_x, dst_y;
3027 dst_x = x * pr->width - pr->vis_width / 2 - pr->x_scroll + CLAMP(pr->subpixel_x_scroll, -1.0, 1.0);
3028 dst_y = y * pr->height - pr->vis_height / 2 - pr->y_scroll + CLAMP(pr->subpixel_y_scroll, -1.0, 1.0);
3030 pr->subpixel_x_scroll = dst_x - (int)dst_x;
3031 pr->subpixel_y_scroll = dst_y - (int)dst_y;
3033 pixbuf_renderer_scroll(pr, (int)dst_x, (int)dst_y);
3038 *-------------------------------------------------------------------
3040 *-------------------------------------------------------------------
3043 static gint pr_mouse_motion_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
3048 pr = PIXBUF_RENDERER(widget);
3050 if (pr->scroller_id != -1)
3052 pr->scroller_xpos = bevent->x;
3053 pr->scroller_ypos = bevent->y;
3056 if (!pr->in_drag || !gdk_pointer_is_grabbed()) return FALSE;
3058 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
3064 widget_set_cursor(widget, GDK_FLEUR);
3067 if (bevent->state & GDK_SHIFT_MASK)
3069 accel = PR_PAN_SHIFT_MULTIPLIER;
3077 pixbuf_renderer_scroll(pr, (pr->drag_last_x - bevent->x) * accel,
3078 (pr->drag_last_y - bevent->y) * accel);
3080 pr_drag_signal(pr, bevent);
3082 pr->drag_last_x = bevent->x;
3083 pr->drag_last_y = bevent->y;
3088 static gint pr_mouse_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
3093 pr = PIXBUF_RENDERER(widget);
3095 if (pr->scroller_id != -1) return TRUE;
3097 switch (bevent->button)
3101 pr->drag_last_x = bevent->x;
3102 pr->drag_last_y = bevent->y;
3104 gdk_pointer_grab(widget->window, FALSE,
3105 GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
3106 NULL, NULL, bevent->time);
3107 gtk_grab_add(widget);
3113 pr_clicked_signal(pr, bevent);
3119 parent = gtk_widget_get_parent(widget);
3120 if (widget && GTK_WIDGET_CAN_FOCUS(parent))
3122 gtk_widget_grab_focus(parent);
3128 static gint pr_mouse_release_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
3132 pr = PIXBUF_RENDERER(widget);
3134 if (pr->scroller_id != -1)
3136 pr_scroller_stop(pr);
3140 if (gdk_pointer_is_grabbed() && GTK_WIDGET_HAS_GRAB(pr))
3142 gtk_grab_remove(widget);
3143 gdk_pointer_ungrab(bevent->time);
3144 widget_set_cursor(widget, -1);
3147 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
3149 if (bevent->button == 1 && (bevent->state & GDK_SHIFT_MASK))
3151 pr_scroller_start(pr, bevent->x, bevent->y);
3153 else if (bevent->button == 1 || bevent->button == 2)
3155 pr_clicked_signal(pr, bevent);
3159 pr->in_drag = FALSE;
3164 static gint pr_mouse_leave_cb(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
3168 pr = PIXBUF_RENDERER(widget);
3170 if (pr->scroller_id != -1)
3172 pr->scroller_xpos = pr->scroller_x;
3173 pr->scroller_ypos = pr->scroller_y;
3174 pr->scroller_xinc = 0;
3175 pr->scroller_yinc = 0;
3181 static void pr_mouse_drag_cb(GtkWidget *widget, GdkDragContext *context, gpointer data)
3185 pr = PIXBUF_RENDERER(widget);
3187 pr->drag_moved = PR_DRAG_SCROLL_THRESHHOLD;
3190 static void pr_signals_connect(PixbufRenderer *pr)
3192 g_signal_connect(G_OBJECT(pr), "motion_notify_event",
3193 G_CALLBACK(pr_mouse_motion_cb), pr);
3194 g_signal_connect(G_OBJECT(pr), "button_press_event",
3195 G_CALLBACK(pr_mouse_press_cb), pr);
3196 g_signal_connect(G_OBJECT(pr), "button_release_event",
3197 G_CALLBACK(pr_mouse_release_cb), pr);
3198 g_signal_connect(G_OBJECT(pr), "leave_notify_event",
3199 G_CALLBACK(pr_mouse_leave_cb), pr);
3201 gtk_widget_set_events(GTK_WIDGET(pr), GDK_POINTER_MOTION_MASK |
3202 GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
3203 GDK_LEAVE_NOTIFY_MASK);
3205 g_signal_connect(G_OBJECT(pr), "drag_begin",
3206 G_CALLBACK(pr_mouse_drag_cb), pr);
3211 *-------------------------------------------------------------------
3213 *-------------------------------------------------------------------
3216 static void pr_pixbuf_sync(PixbufRenderer *pr, gdouble zoom)
3222 /* no pixbuf so just clear the window */
3223 pr->image_width = 0;
3224 pr->image_height = 0;
3227 box = GTK_WIDGET(pr);
3229 if (GTK_WIDGET_REALIZED(box))
3231 gdk_window_clear(box->window);
3232 pr_overlay_draw(pr, 0, 0, pr->window_width, pr->window_height, NULL);
3235 pr_update_signal(pr);
3240 pr->image_width = gdk_pixbuf_get_width(pr->pixbuf);
3241 pr->image_height = gdk_pixbuf_get_height(pr->pixbuf);
3243 pr_zoom_sync(pr, zoom, TRUE, TRUE, FALSE, 0, 0);
3246 static void pr_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom)
3248 if (pixbuf) g_object_ref(pixbuf);
3249 if (pr->pixbuf) g_object_unref(pr->pixbuf);
3250 pr->pixbuf = pixbuf;
3252 pr_pixbuf_sync(pr, zoom);
3255 void pixbuf_renderer_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom)
3257 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3259 pr_source_tile_unset(pr);
3261 pr_set_pixbuf(pr, pixbuf, zoom);
3263 pr_update_signal(pr);
3266 GdkPixbuf *pixbuf_renderer_get_pixbuf(PixbufRenderer *pr)
3268 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
3273 void pixbuf_renderer_move(PixbufRenderer *pr, PixbufRenderer *source)
3276 PixbufRendererScrollResetType scroll_reset;
3278 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3279 g_return_if_fail(IS_PIXBUF_RENDERER(source));
3281 if (pr == source) return;
3283 object = G_OBJECT(pr);
3285 g_object_set(object, "zoom_min", source->zoom_min, NULL);
3286 g_object_set(object, "zoom_max", source->zoom_max, NULL);
3287 g_object_set(object, "loading", source->loading, NULL);
3289 pr->complete = source->complete;
3291 pr->x_scroll = source->x_scroll;
3292 pr->y_scroll = source->y_scroll;
3294 scroll_reset = pr->scroll_reset;
3295 pr->scroll_reset = PR_SCROLL_RESET_NOCHANGE;
3297 if (source->source_tiles_enabled)
3299 pr_source_tile_unset(pr);
3301 pr->source_tiles_enabled = source->source_tiles_enabled;
3302 pr->source_tiles_cache_size = source->source_tiles_cache_size;
3303 pr->source_tile_width = source->source_tile_width;
3304 pr->source_tile_height = source->source_tile_height;
3305 pr->image_width = source->image_width;
3306 pr->image_height = source->image_height;
3308 pr->func_tile_request = source->func_tile_request;
3309 pr->func_tile_dispose = source->func_tile_dispose;
3310 pr->func_tile_data = source->func_tile_data;
3312 pr->source_tiles = source->source_tiles;
3313 source->source_tiles = NULL;
3315 pr_zoom_sync(pr, source->zoom, TRUE, TRUE, FALSE, 0, 0);
3316 pr_redraw(pr, TRUE);
3320 pixbuf_renderer_set_pixbuf(pr, source->pixbuf, source->zoom);
3323 pr->scroll_reset = scroll_reset;
3325 pixbuf_renderer_set_pixbuf(source, NULL, source->zoom);
3326 pr_queue_clear(source);
3327 pr_tile_free_all(source);
3330 void pixbuf_renderer_area_changed(PixbufRenderer *pr, gint x, gint y, gint width, gint height)
3332 gint x1, y1, x2, y2;
3334 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3336 if (pr->source_tiles_enabled)
3338 pr_source_tile_changed(pr, x, y, width, height);
3341 if (pr->scale != 1.0 && pr->zoom_quality != GDK_INTERP_NEAREST)
3343 /* increase region when using a zoom quality that may access surrounding pixels */
3348 x1 = (gint)floor((double)x * pr->scale);
3349 y1 = (gint)floor((double)y * pr->scale);
3350 x2 = (gint)ceil((double)(x + width) * pr->scale);
3351 y2 = (gint)ceil((double)(y + height) * pr->scale);
3353 pr_queue(pr, x1, y1, x2 - x1, y2 - y1, FALSE, TILE_RENDER_AREA, TRUE, TRUE);
3356 void pixbuf_renderer_zoom_adjust(PixbufRenderer *pr, gdouble increment)
3358 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3360 pr_zoom_adjust_real(pr, increment, FALSE, 0, 0);
3363 void pixbuf_renderer_zoom_adjust_at_point(PixbufRenderer *pr, gdouble increment, gint x, gint y)
3365 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3367 pr_zoom_adjust_real(pr, increment, TRUE, x, y);
3370 void pixbuf_renderer_zoom_set(PixbufRenderer *pr, gdouble zoom)
3372 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3374 pr_zoom_sync(pr, zoom, FALSE, FALSE, FALSE, 0, 0);
3377 gdouble pixbuf_renderer_zoom_get(PixbufRenderer *pr)
3379 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
3384 gdouble pixbuf_renderer_zoom_get_scale(PixbufRenderer *pr)
3386 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
3391 void pixbuf_renderer_zoom_set_limits(PixbufRenderer *pr, gdouble min, gdouble max)
3393 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3395 if (min > 1.0 || max < 1.0) return;
3396 if (min < 1.0 && min > -1.0) return;
3397 if (min < -200.0 || max > 200.0) return;
3399 if (pr->zoom_min != min)
3402 g_object_notify(G_OBJECT(pr), "zoom_min");
3404 if (pr->zoom_max != max)
3407 g_object_notify(G_OBJECT(pr), "zoom_max");
3411 gint pixbuf_renderer_get_image_size(PixbufRenderer *pr, gint *width, gint *height)
3413 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
3414 g_return_val_if_fail(width != NULL && height != NULL, FALSE);
3416 if (!pr->pixbuf && !pr->source_tiles_enabled)
3423 *width = pr->image_width;
3424 *height = pr->image_height;
3428 gint pixbuf_renderer_get_scaled_size(PixbufRenderer *pr, gint *width, gint *height)
3430 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
3431 g_return_val_if_fail(width != NULL && height != NULL, FALSE);
3433 if (!pr->pixbuf && !pr->source_tiles_enabled)
3441 *height = pr->height;
3445 gint pixbuf_renderer_get_visible_rect(PixbufRenderer *pr, GdkRectangle *rect)
3447 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
3448 g_return_val_if_fail(rect != NULL, FALSE);
3450 if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
3460 rect->x = (gint)((gdouble)pr->x_scroll / pr->scale);
3461 rect->y = (gint)((gdouble)pr->y_scroll / pr->scale);
3462 rect->width = (gint)((gdouble)pr->vis_width / pr->scale);
3463 rect->height = (gint)((gdouble)pr->vis_height / pr->scale);
3467 gint pixbuf_renderer_get_virtual_rect(PixbufRenderer *pr, GdkRectangle *rect)
3469 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
3470 g_return_val_if_fail(rect != NULL, FALSE);
3472 if ((!pr->pixbuf && !pr->source_tiles_enabled))
3481 rect->x = pr->x_scroll;
3482 rect->y = pr->y_scroll;
3483 rect->width = pr->vis_width;
3484 rect->height = pr->vis_height;