4 * Copyright (C) 2008 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!
18 #include "pixbuf-renderer.h"
24 /* comment this out if not using this from within Geeqie
25 * defining GQ_BUILD does these things:
26 * - Sets the shift-click scroller pixbuf to a nice icon instead of a black box
32 #include "pixbuf_util.h"
36 EXIF_ORIENTATION_UNKNOWN = 0,
37 EXIF_ORIENTATION_TOP_LEFT = 1,
38 EXIF_ORIENTATION_TOP_RIGHT = 2,
39 EXIF_ORIENTATION_BOTTOM_RIGHT = 3,
40 EXIF_ORIENTATION_BOTTOM_LEFT = 4,
41 EXIF_ORIENTATION_LEFT_TOP = 5,
42 EXIF_ORIENTATION_RIGHT_TOP = 6,
43 EXIF_ORIENTATION_RIGHT_BOTTOM = 7,
44 EXIF_ORIENTATION_LEFT_BOTTOM = 8
45 } ExifOrientationType;
49 /* size to use when breaking up image pane for rendering */
50 #define PR_TILE_SIZE 128
52 /* default size of tile cache (mb) */
53 #define PR_CACHE_SIZE_DEFAULT 8
55 /* default min and max zoom */
56 #define PR_ZOOM_MIN -32.0
57 #define PR_ZOOM_MAX 32.0
59 /* distance to drag mouse to disable image flip */
60 #define PR_DRAG_SCROLL_THRESHHOLD 4
62 /* increase pan rate when holding down shift */
63 #define PR_PAN_SHIFT_MULTIPLIER 6
66 #define PR_SCROLLER_UPDATES_PER_SEC 30
67 #define PR_SCROLLER_DEAD_ZONE 6
69 /* alpha channel checkerboard background (same as gimp) */
70 #define PR_ALPHA_CHECK1 0x00999999
71 #define PR_ALPHA_CHECK2 0x00666666
72 #define PR_ALPHA_CHECK_SIZE 16
74 /* when scaling image to below this size, use nearest pixel for scaling
75 * (below about 4, the other scale types become slow generating their conversion tables)
77 #define PR_MIN_SCALE_SIZE 8
80 TILE_RENDER_NONE = 0, /* do nothing */
81 TILE_RENDER_AREA, /* render an area of the tile */
82 TILE_RENDER_ALL /* render the whole tile */
83 } ImageTileRenderType;
85 typedef struct _ImageTile ImageTile;
86 typedef struct _QueueData QueueData;
90 GdkPixmap *pixmap; /* off screen buffer */
91 GdkPixbuf *pixbuf; /* pixbuf area for zooming */
92 gint x; /* x offset into image */
93 gint y; /* y offset into image */
94 gint w; /* width that is visible (may be less if at edge of image) */
95 gint h; /* height '' */
99 /* render_todo: (explanation)
101 AREA render area of tile, usually only used when loading an image
102 note: will jump to an ALL if render_done is not ALL.
103 ALL render entire tile, if never done before w/ ALL, for expose events *only*
106 ImageTileRenderType render_todo; /* what to do (see above) */
107 ImageTileRenderType render_done; /* highest that has been done before on tile */
112 guint size; /* est. memory used by pixmap and pixbuf */
125 typedef struct _SourceTile SourceTile;
134 typedef struct _OverlayData OverlayData;
145 OverlayRendererFlags flags;
151 SIGNAL_SCROLL_NOTIFY,
152 SIGNAL_RENDER_COMPLETE,
169 PROP_CACHE_SIZE_DISPLAY,
170 PROP_CACHE_SIZE_TILES,
173 PROP_WINDOW_LIMIT_VALUE,
175 PROP_AUTOFIT_LIMIT_VALUE
180 PR_ZOOM_FORCE = 1 << 0,
181 PR_ZOOM_NEW = 1 << 1,
182 PR_ZOOM_CENTER = 1 << 2,
183 PR_ZOOM_INVALIDATE = 1 << 3,
186 static guint signals[SIGNAL_COUNT] = { 0 };
187 static GtkEventBoxClass *parent_class = NULL;
191 static void pixbuf_renderer_class_init(PixbufRendererClass *class);
192 static void pixbuf_renderer_init(PixbufRenderer *pr);
193 static void pixbuf_renderer_finalize(GObject *object);
194 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
195 const GValue *value, GParamSpec *pspec);
196 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
197 GValue *value, GParamSpec *pspec);
198 static gint pixbuf_renderer_expose(GtkWidget *widget, GdkEventExpose *event);
200 static void pr_render_complete_signal(PixbufRenderer *pr);
202 static void pr_overlay_list_clear(PixbufRenderer *pr);
203 static void pr_scroller_timer_set(PixbufRenderer *pr, gint start);
204 static void pr_border_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h);
207 static void pr_source_tile_free_all(PixbufRenderer *pr);
208 static void pr_tile_free_all(PixbufRenderer *pr);
209 static void pr_tile_invalidate_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h);
210 static gint pr_tile_is_visible(PixbufRenderer *pr, ImageTile *it);
211 static void pr_queue_clear(PixbufRenderer *pr);
212 static void pr_queue_merge(QueueData *parent, QueueData *qd);
213 static void pr_queue(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
214 gint clamp, ImageTileRenderType render, gint new_data, gint only_existing);
216 static void pr_redraw(PixbufRenderer *pr, gint new_data);
218 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
219 PrZoomFlags flags, gint px, gint py);
221 static void pr_signals_connect(PixbufRenderer *pr);
222 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data);
223 static void pixbuf_renderer_paint(PixbufRenderer *pr, GdkRectangle *area);
227 *-------------------------------------------------------------------
228 * Pixbuf Renderer object
229 *-------------------------------------------------------------------
232 GType pixbuf_renderer_get_type(void)
234 static GType pixbuf_renderer_type = 0;
236 if (!pixbuf_renderer_type)
238 static const GTypeInfo pixbuf_renderer_info =
240 sizeof(PixbufRendererClass), /* class_size */
241 NULL, /* base_init */
242 NULL, /* base_finalize */
243 (GClassInitFunc)pixbuf_renderer_class_init,
244 NULL, /* class_finalize */
245 NULL, /* class_data */
246 sizeof(PixbufRenderer), /* instance_size */
248 (GInstanceInitFunc)pixbuf_renderer_init, /* instance_init */
249 NULL, /* value_table */
252 pixbuf_renderer_type = g_type_register_static(GTK_TYPE_EVENT_BOX, "PixbufRenderer",
253 &pixbuf_renderer_info, 0);
256 return pixbuf_renderer_type;
259 static void pixbuf_renderer_class_init(PixbufRendererClass *class)
261 GObjectClass *gobject_class = G_OBJECT_CLASS(class);
262 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(class);
264 parent_class = g_type_class_peek_parent(class);
266 gobject_class->set_property = pixbuf_renderer_set_property;
267 gobject_class->get_property = pixbuf_renderer_get_property;
269 gobject_class->finalize = pixbuf_renderer_finalize;
271 widget_class->expose_event = pixbuf_renderer_expose;
273 g_object_class_install_property(gobject_class,
275 g_param_spec_double("zoom_min",
281 G_PARAM_READABLE | G_PARAM_WRITABLE));
283 g_object_class_install_property(gobject_class,
285 g_param_spec_double("zoom_max",
291 G_PARAM_READABLE | G_PARAM_WRITABLE));
293 g_object_class_install_property(gobject_class,
295 g_param_spec_uint("zoom_quality",
301 G_PARAM_READABLE | G_PARAM_WRITABLE));
303 g_object_class_install_property(gobject_class,
305 g_param_spec_boolean("zoom_2pass",
309 G_PARAM_READABLE | G_PARAM_WRITABLE));
311 g_object_class_install_property(gobject_class,
313 g_param_spec_boolean("zoom_expand",
314 "Expand image in autozoom.",
317 G_PARAM_READABLE | G_PARAM_WRITABLE));
319 g_object_class_install_property(gobject_class,
321 g_param_spec_uint("dither_quality",
326 GDK_RGB_DITHER_NORMAL,
327 G_PARAM_READABLE | G_PARAM_WRITABLE));
329 g_object_class_install_property(gobject_class,
331 g_param_spec_uint("scroll_reset",
332 "New image scroll reset",
334 PR_SCROLL_RESET_TOPLEFT,
335 PR_SCROLL_RESET_NOCHANGE,
336 PR_SCROLL_RESET_TOPLEFT,
337 G_PARAM_READABLE | G_PARAM_WRITABLE));
339 g_object_class_install_property(gobject_class,
341 g_param_spec_boolean("delay_flip",
342 "Delay image update",
345 G_PARAM_READABLE | G_PARAM_WRITABLE));
347 g_object_class_install_property(gobject_class,
349 g_param_spec_boolean("loading",
350 "Image actively loading",
353 G_PARAM_READABLE | G_PARAM_WRITABLE));
355 g_object_class_install_property(gobject_class,
357 g_param_spec_boolean("complete",
358 "Image rendering complete",
361 G_PARAM_READABLE | G_PARAM_WRITABLE));
363 g_object_class_install_property(gobject_class,
364 PROP_CACHE_SIZE_DISPLAY,
365 g_param_spec_uint("cache_display",
366 "Display cache size MB",
370 PR_CACHE_SIZE_DEFAULT,
371 G_PARAM_READABLE | G_PARAM_WRITABLE));
373 g_object_class_install_property(gobject_class,
374 PROP_CACHE_SIZE_TILES,
375 g_param_spec_uint("cache_tiles",
377 "Number of tiles to retain in memory at any one time.",
380 PR_CACHE_SIZE_DEFAULT,
381 G_PARAM_READABLE | G_PARAM_WRITABLE));
383 g_object_class_install_property(gobject_class,
385 g_param_spec_boolean("window_fit",
386 "Fit window to image size",
389 G_PARAM_READABLE | G_PARAM_WRITABLE));
391 g_object_class_install_property(gobject_class,
393 g_param_spec_boolean("window_limit",
394 "Limit size of parent window",
397 G_PARAM_READABLE | G_PARAM_WRITABLE));
399 g_object_class_install_property(gobject_class,
400 PROP_WINDOW_LIMIT_VALUE,
401 g_param_spec_uint("window_limit_value",
402 "Size limit of parent window",
407 G_PARAM_READABLE | G_PARAM_WRITABLE));
409 g_object_class_install_property(gobject_class,
411 g_param_spec_boolean("autofit_limit",
412 "Limit size of image when autofitting",
415 G_PARAM_READABLE | G_PARAM_WRITABLE));
417 g_object_class_install_property(gobject_class,
418 PROP_AUTOFIT_LIMIT_VALUE,
419 g_param_spec_uint("autofit_limit_value",
420 "Size limit of image when autofitting",
425 G_PARAM_READABLE | G_PARAM_WRITABLE));
428 signals[SIGNAL_ZOOM] =
430 G_OBJECT_CLASS_TYPE(gobject_class),
432 G_STRUCT_OFFSET(PixbufRendererClass, zoom),
434 g_cclosure_marshal_VOID__DOUBLE,
438 signals[SIGNAL_CLICKED] =
439 g_signal_new("clicked",
440 G_OBJECT_CLASS_TYPE(gobject_class),
442 G_STRUCT_OFFSET(PixbufRendererClass, clicked),
444 g_cclosure_marshal_VOID__BOXED,
448 signals[SIGNAL_SCROLL_NOTIFY] =
449 g_signal_new("scroll-notify",
450 G_OBJECT_CLASS_TYPE(gobject_class),
452 G_STRUCT_OFFSET(PixbufRendererClass, scroll_notify),
454 g_cclosure_marshal_VOID__VOID,
457 signals[SIGNAL_RENDER_COMPLETE] =
458 g_signal_new("render-complete",
459 G_OBJECT_CLASS_TYPE(gobject_class),
461 G_STRUCT_OFFSET(PixbufRendererClass, render_complete),
463 g_cclosure_marshal_VOID__VOID,
466 signals[SIGNAL_DRAG] =
468 G_OBJECT_CLASS_TYPE(gobject_class),
470 G_STRUCT_OFFSET(PixbufRendererClass, drag),
472 g_cclosure_marshal_VOID__BOXED,
477 static void pixbuf_renderer_init(PixbufRenderer *pr)
481 box = GTK_WIDGET(pr);
483 pr->zoom_min = PR_ZOOM_MIN;
484 pr->zoom_max = PR_ZOOM_MAX;
485 pr->zoom_quality = GDK_INTERP_BILINEAR;
486 pr->zoom_2pass = FALSE;
491 pr->dither_quality = GDK_RGB_DITHER_NORMAL;
493 pr->scroll_reset = PR_SCROLL_RESET_TOPLEFT;
495 pr->draw_idle_id = -1;
497 pr->tile_width = PR_TILE_SIZE;
498 pr->tile_height = PR_TILE_SIZE;
501 pr->tile_cache_size = 0;
503 pr->tile_cache_max = PR_CACHE_SIZE_DEFAULT;
505 pr->scroller_id = -1;
506 pr->scroller_overlay = -1;
508 pr->source_tiles_enabled = FALSE;
509 pr->source_tiles = NULL;
513 gtk_widget_set_double_buffered(box, FALSE);
514 g_signal_connect_after(G_OBJECT(box), "size_allocate",
515 G_CALLBACK(pr_size_cb), pr);
517 pr_signals_connect(pr);
520 static void pixbuf_renderer_finalize(GObject *object)
524 pr = PIXBUF_RENDERER(object);
527 pr_tile_free_all(pr);
529 if (pr->pixbuf) g_object_unref(pr->pixbuf);
530 if (pr->spare_tile) gdk_pixbuf_unref(pr->spare_tile);
532 pr_scroller_timer_set(pr, FALSE);
533 pr_overlay_list_clear(pr);
535 pr_source_tile_free_all(pr);
538 PixbufRenderer* pixbuf_renderer_new(void)
540 return g_object_new(TYPE_PIXBUF_RENDERER, NULL);
543 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
544 const GValue *value, GParamSpec *pspec)
548 pr = PIXBUF_RENDERER(object);
553 pr->zoom_min = g_value_get_double(value);
556 pr->zoom_max = g_value_get_double(value);
558 case PROP_ZOOM_QUALITY:
559 pr->zoom_quality = g_value_get_uint(value);
561 case PROP_ZOOM_2PASS:
562 pr->zoom_2pass = g_value_get_boolean(value);
564 case PROP_ZOOM_EXPAND:
565 pr->zoom_expand = g_value_get_boolean(value);
567 case PROP_DITHER_QUALITY:
568 pr->dither_quality = g_value_get_uint(value);
570 case PROP_SCROLL_RESET:
571 pr->scroll_reset = g_value_get_uint(value);
573 case PROP_DELAY_FLIP:
574 pr->delay_flip = g_value_get_boolean(value);
577 pr->loading = g_value_get_boolean(value);
580 pr->complete = g_value_get_boolean(value);
582 case PROP_CACHE_SIZE_DISPLAY:
583 pr->tile_cache_max = g_value_get_uint(value);
585 case PROP_CACHE_SIZE_TILES:
586 pr->source_tiles_cache_size = g_value_get_uint(value);
588 case PROP_WINDOW_FIT:
589 pr->window_fit = g_value_get_boolean(value);
591 case PROP_WINDOW_LIMIT:
592 pr->window_limit = g_value_get_boolean(value);
594 case PROP_WINDOW_LIMIT_VALUE:
595 pr->window_limit_size = g_value_get_uint(value);
597 case PROP_AUTOFIT_LIMIT:
598 pr->autofit_limit = g_value_get_boolean(value);
600 case PROP_AUTOFIT_LIMIT_VALUE:
601 pr->autofit_limit_size = g_value_get_uint(value);
604 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
609 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
610 GValue *value, GParamSpec *pspec)
614 pr = PIXBUF_RENDERER(object);
619 g_value_set_double(value, pr->zoom_min);
622 g_value_set_double(value, pr->zoom_max);
624 case PROP_ZOOM_QUALITY:
625 g_value_set_uint(value, pr->zoom_quality);
627 case PROP_ZOOM_2PASS:
628 g_value_set_boolean(value, pr->zoom_2pass);
630 case PROP_ZOOM_EXPAND:
631 g_value_set_boolean(value, pr->zoom_expand);
633 case PROP_DITHER_QUALITY:
634 g_value_set_uint(value, pr->dither_quality);
636 case PROP_SCROLL_RESET:
637 g_value_set_uint(value, pr->scroll_reset);
639 case PROP_DELAY_FLIP:
640 g_value_set_boolean(value, pr->delay_flip);
643 g_value_set_boolean(value, pr->loading);
646 g_value_set_boolean(value, pr->complete);
648 case PROP_CACHE_SIZE_DISPLAY:
649 g_value_set_uint(value, pr->tile_cache_max);
651 case PROP_CACHE_SIZE_TILES:
652 g_value_set_uint(value, pr->source_tiles_cache_size);
654 case PROP_WINDOW_FIT:
655 g_value_set_boolean(value, pr->window_fit);
657 case PROP_WINDOW_LIMIT:
658 g_value_set_boolean(value, pr->window_limit);
660 case PROP_WINDOW_LIMIT_VALUE:
661 g_value_set_uint(value, pr->window_limit_size);
663 case PROP_AUTOFIT_LIMIT:
664 g_value_set_boolean(value, pr->autofit_limit);
666 case PROP_AUTOFIT_LIMIT_VALUE:
667 g_value_set_uint(value, pr->autofit_limit_size);
670 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
675 static gint pixbuf_renderer_expose(GtkWidget *widget, GdkEventExpose *event)
677 if (GTK_WIDGET_DRAWABLE(widget))
679 if (!GTK_WIDGET_NO_WINDOW(widget))
681 if (event->window != widget->window)
685 gdk_window_get_position(event->window, &area.x, &area.y);
687 area.x += event->area.x;
688 area.y += event->area.y;
689 area.width = event->area.width;
690 area.height = event->area.height;
691 pixbuf_renderer_paint(PIXBUF_RENDERER(widget), &area);
695 pixbuf_renderer_paint(PIXBUF_RENDERER(widget), &event->area);
704 *-------------------------------------------------------------------
706 *-------------------------------------------------------------------
709 static void widget_set_cursor(GtkWidget *widget, gint icon)
713 if (!widget->window) return;
721 cursor = gdk_cursor_new(icon);
724 gdk_window_set_cursor(widget->window, cursor);
726 if (cursor) gdk_cursor_unref(cursor);
729 static gint pixmap_calc_size(GdkPixmap *pixmap)
733 d = gdk_drawable_get_depth(pixmap);
734 gdk_drawable_get_size(pixmap, &w, &h);
735 return w * h * (d / 8);
738 static gint pr_clip_region(gint x, gint y, gint w, gint h,
739 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
740 gint *rx, gint *ry, gint *rw, gint *rh)
742 if (clip_x + clip_w <= x ||
744 clip_y + clip_h <= y ||
750 *rx = MAX(x, clip_x);
751 *rw = MIN((x + w), (clip_x + clip_w)) - *rx;
753 *ry = MAX(y, clip_y);
754 *rh = MIN((y + h), (clip_y + clip_h)) - *ry;
759 static gint pr_parent_window_sizable(PixbufRenderer *pr)
761 GdkWindowState state;
763 if (!pr->parent_window) return FALSE;
764 if (!pr->window_fit) return FALSE;
765 if (!GTK_WIDGET(pr)->window) return FALSE;
767 if (!pr->parent_window->window) return FALSE;
768 state = gdk_window_get_state(pr->parent_window->window);
769 if (state & GDK_WINDOW_STATE_MAXIMIZED) return FALSE;
774 static gint pr_parent_window_resize(PixbufRenderer *pr, gint w, gint h)
780 if (!pr_parent_window_sizable(pr)) return FALSE;
782 if (pr->window_limit)
784 gint sw = gdk_screen_width() * pr->window_limit_size / 100;
785 gint sh = gdk_screen_height() * pr->window_limit_size / 100;
791 widget = GTK_WIDGET(pr);
792 parent = GTK_WIDGET(pr->parent_window);
794 w += (parent->allocation.width - widget->allocation.width);
795 h += (parent->allocation.height - widget->allocation.height);
797 gdk_drawable_get_size(parent->window, &ww, &wh);
798 if (w == ww && h == wh) return FALSE;
800 gdk_window_resize(parent->window, w, h);
805 void pixbuf_renderer_set_parent(PixbufRenderer *pr, GtkWindow *window)
807 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
808 g_return_if_fail(window == NULL || GTK_IS_WINDOW(window));
810 pr->parent_window = GTK_WIDGET(window);
813 GtkWindow *pixbuf_renderer_get_parent(PixbufRenderer *pr)
815 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
817 return GTK_WINDOW(pr->parent_window);
822 *-------------------------------------------------------------------
824 *-------------------------------------------------------------------
827 static void pr_overlay_get_position(PixbufRenderer *pr, OverlayData *od,
828 gint *x, gint *y, gint *w, gint *h)
832 pw = gdk_pixbuf_get_width(od->pixbuf);
833 ph = gdk_pixbuf_get_height(od->pixbuf);
837 if (od->flags & OVL_RELATIVE)
839 if (px < 0) px = pr->window_width - pw + px;
840 if (py < 0) py = pr->window_height - ph + py;
849 static void pr_overlay_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
855 box = GTK_WIDGET(pr);
857 work = pr->overlay_list;
867 pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
868 if (pr_clip_region(x, y, w, h, px, py, pw, ph, &rx, &ry, &rw, &rh))
870 if (!pr->overlay_buffer)
872 pr->overlay_buffer = gdk_pixmap_new(((GtkWidget *)pr)->window, pr->tile_width, pr->tile_height, -1);
877 gdk_draw_drawable(pr->overlay_buffer, box->style->fg_gc[GTK_WIDGET_STATE(box)],
879 rx - (pr->x_offset + (it->x - pr->x_scroll)),
880 ry - (pr->y_offset + (it->y - pr->y_scroll)),
882 gdk_draw_pixbuf(pr->overlay_buffer,
883 box->style->fg_gc[GTK_WIDGET_STATE(box)],
887 pr->dither_quality, rx, ry);
888 gdk_draw_drawable(od->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
891 rx - px, ry - py, rw, rh);
895 /* no ImageTile means region may be larger than our scratch buffer */
898 for (sx = rx; sx < rx + rw; sx += pr->tile_width)
899 for (sy = ry; sy < ry + rh; sy += pr->tile_height)
903 sw = MIN(rx + rw - sx, pr->tile_width);
904 sh = MIN(ry + rh - sy, pr->tile_height);
906 gdk_draw_rectangle(pr->overlay_buffer,
907 box->style->bg_gc[GTK_WIDGET_STATE(box)], TRUE,
909 gdk_draw_pixbuf(pr->overlay_buffer,
910 box->style->fg_gc[GTK_WIDGET_STATE(box)],
914 pr->dither_quality, sx, sy);
915 gdk_draw_drawable(od->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
918 sx - px, sy - py, sw, sh);
925 static void pr_overlay_queue_draw(PixbufRenderer *pr, OverlayData *od)
929 pr_overlay_get_position(pr, od, &x, &y, &w, &h);
930 pr_queue(pr, pr->x_scroll - pr->x_offset + x,
931 pr->y_scroll - pr->y_offset + y,
933 FALSE, TILE_RENDER_ALL, FALSE, FALSE);
935 pr_border_draw(pr, x, y, w, h);
938 static void pr_overlay_queue_all(PixbufRenderer *pr)
942 work = pr->overlay_list;
945 OverlayData *od = work->data;
948 pr_overlay_queue_draw(pr, od);
952 static void pr_overlay_update_sizes(PixbufRenderer *pr)
956 work = pr->overlay_list;
959 OverlayData *od = work->data;
962 if (!od->window) continue;
964 if (od->flags & OVL_RELATIVE)
968 pr_overlay_get_position(pr, od, &x, &y, &w, &h);
969 gdk_window_move_resize(od->window, x, y, w, h);
974 static OverlayData *pr_overlay_find(PixbufRenderer *pr, gint id)
978 work = pr->overlay_list;
981 OverlayData *od = work->data;
984 if (od->id == id) return od;
990 gint pixbuf_renderer_overlay_add(PixbufRenderer *pr, GdkPixbuf *pixbuf, gint x, gint y,
991 OverlayRendererFlags flags)
996 GdkWindowAttr attributes;
997 gint attributes_mask;
999 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
1000 g_return_val_if_fail(pixbuf != NULL, -1);
1003 while (pr_overlay_find(pr, id)) id++;
1005 od = g_new0(OverlayData, 1);
1007 od->pixbuf = pixbuf;
1008 g_object_ref(G_OBJECT(od->pixbuf));
1013 pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
1015 attributes.window_type = GDK_WINDOW_CHILD;
1016 attributes.wclass = GDK_INPUT_OUTPUT;
1017 attributes.width = pw;
1018 attributes.height = ph;
1019 attributes.event_mask = GDK_EXPOSURE_MASK;
1020 attributes_mask = 0;
1022 od->window = gdk_window_new(GTK_WIDGET(pr)->window, &attributes, attributes_mask);
1023 gdk_window_set_user_data(od->window, pr);
1024 gdk_window_move(od->window, px, py);
1025 gdk_window_show(od->window);
1027 pr->overlay_list = g_list_append(pr->overlay_list, od);
1029 pr_overlay_queue_draw(pr, od);
1034 static void pr_overlay_free(PixbufRenderer *pr, OverlayData *od)
1036 pr->overlay_list = g_list_remove(pr->overlay_list, od);
1038 if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
1039 if (od->window) gdk_window_destroy(od->window);
1042 if (!pr->overlay_list && pr->overlay_buffer)
1044 g_object_unref(pr->overlay_buffer);
1045 pr->overlay_buffer = NULL;
1049 static void pr_overlay_list_clear(PixbufRenderer *pr)
1051 while (pr->overlay_list)
1055 od = pr->overlay_list->data;
1056 pr_overlay_free(pr, od);
1060 void pixbuf_renderer_overlay_set(PixbufRenderer *pr, gint id, GdkPixbuf *pixbuf, gint x, gint y)
1064 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1066 od = pr_overlay_find(pr, id);
1071 gint px, py, pw, ph;
1073 g_object_ref(G_OBJECT(pixbuf));
1074 g_object_unref(G_OBJECT(od->pixbuf));
1075 od->pixbuf = pixbuf;
1080 pr_overlay_queue_draw(pr, od);
1081 pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
1082 gdk_window_move_resize(od->window, px, py, pw, ph);
1086 pr_overlay_queue_draw(pr, od);
1087 pr_overlay_free(pr, od);
1091 gint pixbuf_renderer_overlay_get(PixbufRenderer *pr, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
1095 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
1097 od = pr_overlay_find(pr, id);
1098 if (!od) return FALSE;
1100 if (pixbuf) *pixbuf = od->pixbuf;
1107 void pixbuf_renderer_overlay_remove(PixbufRenderer *pr, gint id)
1109 pixbuf_renderer_overlay_set(pr, id, NULL, 0, 0);
1113 *-------------------------------------------------------------------
1115 *-------------------------------------------------------------------
1119 static gboolean pr_scroller_update_cb(gpointer data)
1121 PixbufRenderer *pr = data;
1125 /* this was a simple scroll by difference between scroller and mouse position,
1126 * but all this math results in a smoother result and accounts for a dead zone.
1129 if (abs(pr->scroller_xpos - pr->scroller_x) < PR_SCROLLER_DEAD_ZONE)
1135 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1136 x = (pr->scroller_xpos - pr->scroller_x) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1137 x += (x > 0) ? -shift : shift;
1140 if (abs(pr->scroller_ypos - pr->scroller_y) < PR_SCROLLER_DEAD_ZONE)
1146 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1147 y = (pr->scroller_ypos - pr->scroller_y) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1148 y += (y > 0) ? -shift : shift;
1151 if (abs(x) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
1157 xinc = pr->scroller_xinc;
1161 if (xinc < 0) xinc = 0;
1162 if (x < xinc) xinc = x;
1163 if (x > xinc) xinc = MIN(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
1167 if (xinc > 0) xinc = 0;
1168 if (x > xinc) xinc = x;
1169 if (x < xinc) xinc = MAX(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
1173 if (abs(y) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
1179 yinc = pr->scroller_yinc;
1183 if (yinc < 0) yinc = 0;
1184 if (y < yinc) yinc = y;
1185 if (y > yinc) yinc = MIN(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
1189 if (yinc > 0) yinc = 0;
1190 if (y > yinc) yinc = y;
1191 if (y < yinc) yinc = MAX(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
1195 pr->scroller_xinc = xinc;
1196 pr->scroller_yinc = yinc;
1198 xinc = xinc / PR_SCROLLER_UPDATES_PER_SEC;
1199 yinc = yinc / PR_SCROLLER_UPDATES_PER_SEC;
1201 pixbuf_renderer_scroll(pr, xinc, yinc);
1206 static void pr_scroller_timer_set(PixbufRenderer *pr, gint start)
1208 if (pr->scroller_id != -1)
1210 g_source_remove(pr->scroller_id);
1211 pr->scroller_id = -1;
1216 pr->scroller_id = g_timeout_add(1000 / PR_SCROLLER_UPDATES_PER_SEC,
1217 pr_scroller_update_cb, pr);
1221 static void pr_scroller_start(PixbufRenderer *pr, gint x, gint y)
1223 if (pr->scroller_overlay == -1)
1229 pixbuf = pixbuf_inline(PIXBUF_INLINE_SCROLLER);
1231 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 32, 32);
1232 gdk_pixbuf_fill(pixbuf, 0x000000ff);
1234 w = gdk_pixbuf_get_width(pixbuf);
1235 h = gdk_pixbuf_get_height(pixbuf);
1237 pr->scroller_overlay = pixbuf_renderer_overlay_add(pr, pixbuf, x - w / 2, y - h / 2, OVL_NORMAL);
1238 g_object_unref(pixbuf);
1243 pr->scroller_xpos = x;
1244 pr->scroller_ypos = y;
1246 pr_scroller_timer_set(pr, TRUE);
1249 static void pr_scroller_stop(PixbufRenderer *pr)
1251 if (pr->scroller_id == -1) return;
1253 pixbuf_renderer_overlay_remove(pr, pr->scroller_overlay);
1254 pr->scroller_overlay = -1;
1256 pr_scroller_timer_set(pr, FALSE);
1260 *-------------------------------------------------------------------
1262 *-------------------------------------------------------------------
1265 static void pr_border_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
1268 gint rx, ry, rw, rh;
1270 box = GTK_WIDGET(pr);
1272 if (!box->window) return;
1274 if (!pr->pixbuf && !pr->source_tiles_enabled)
1276 if (pr_clip_region(x, y, w, h,
1278 pr->window_width, pr->window_height,
1279 &rx, &ry, &rw, &rh))
1281 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1282 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1287 if (pr->vis_width < pr->window_width)
1289 if (pr->x_offset > 0 &&
1290 pr_clip_region(x, y, w, h,
1292 pr->x_offset, pr->window_height,
1293 &rx, &ry, &rw, &rh))
1295 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1296 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1298 if (pr->window_width - pr->vis_width - pr->x_offset > 0 &&
1299 pr_clip_region(x, y, w, h,
1300 pr->x_offset + pr->vis_width, 0,
1301 pr->window_width - pr->vis_width - pr->x_offset, pr->window_height,
1302 &rx, &ry, &rw, &rh))
1304 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1305 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1308 if (pr->vis_height < pr->window_height)
1310 if (pr->y_offset > 0 &&
1311 pr_clip_region(x, y, w, h,
1313 pr->vis_width, pr->y_offset,
1314 &rx, &ry, &rw, &rh))
1316 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1317 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1319 if (pr->window_height - pr->vis_height - pr->y_offset > 0 &&
1320 pr_clip_region(x, y, w, h,
1321 pr->x_offset, pr->y_offset + pr->vis_height,
1322 pr->vis_width, pr->window_height - pr->vis_height - pr->y_offset,
1323 &rx, &ry, &rw, &rh))
1325 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1326 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1331 static void pr_border_clear(PixbufRenderer *pr)
1333 pr_border_draw(pr, 0, 0, pr->window_width, pr->window_height);
1336 void pixbuf_renderer_set_color(PixbufRenderer *pr, GdkColor *color)
1341 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1343 widget = GTK_WIDGET(pr);
1348 style = gtk_style_copy(gtk_widget_get_style(widget));
1349 slot = &style->bg[GTK_STATE_NORMAL];
1351 slot->red = color->red;
1352 slot->green = color->green;
1353 slot->blue = color->blue;
1356 style = gtk_style_copy(gtk_widget_get_default_style());
1359 gtk_widget_set_style(widget, style);
1361 if (GTK_WIDGET_VISIBLE(widget)) pr_border_clear(pr);
1366 *-------------------------------------------------------------------
1368 *-------------------------------------------------------------------
1371 static void pr_source_tile_free(SourceTile *st)
1375 if (st->pixbuf) g_object_unref(st->pixbuf);
1379 static void pr_source_tile_free_all(PixbufRenderer *pr)
1383 work = pr->source_tiles;
1391 pr_source_tile_free(st);
1394 g_list_free(pr->source_tiles);
1395 pr->source_tiles = NULL;
1398 static void pr_source_tile_unset(PixbufRenderer *pr)
1400 pr_source_tile_free_all(pr);
1401 pr->source_tiles_enabled = FALSE;
1404 static gint pr_source_tile_visible(PixbufRenderer *pr, SourceTile *st)
1406 gint x1, y1, x2, y2;
1408 if (!st) return FALSE;
1410 x1 = (pr->x_scroll / pr->tile_width) * pr->tile_width;
1411 y1 = (pr->y_scroll / pr->tile_height) * pr->tile_height;
1412 x2 = ((pr->x_scroll + pr->vis_width) / pr->tile_width) * pr->tile_width + pr->tile_width;
1413 y2 = ((pr->y_scroll + pr->vis_height) / pr->tile_height) * pr->tile_height + pr->tile_height;
1415 return !((gdouble)st->x * pr->scale > (gdouble)x2 ||
1416 (gdouble)(st->x + pr->source_tile_width) * pr->scale < (gdouble)x1 ||
1417 (gdouble)st->y * pr->scale > (gdouble)y2 ||
1418 (gdouble)(st->y + pr->source_tile_height) * pr->scale < (gdouble)y1);
1421 static SourceTile *pr_source_tile_new(PixbufRenderer *pr, gint x, gint y)
1423 SourceTile *st = NULL;
1426 g_return_val_if_fail(pr->source_tile_width >= 1 && pr->source_tile_height >= 1, NULL);
1428 if (pr->source_tiles_cache_size < 4) pr->source_tiles_cache_size = 4;
1430 count = g_list_length(pr->source_tiles);
1431 if (count >= pr->source_tiles_cache_size)
1435 work = g_list_last(pr->source_tiles);
1436 while (work && count >= pr->source_tiles_cache_size)
1440 needle = work->data;
1443 if (!pr_source_tile_visible(pr, needle))
1445 pr->source_tiles = g_list_remove(pr->source_tiles, needle);
1447 if (pr->func_tile_dispose)
1449 pr->func_tile_dispose(pr, needle->x, needle->y,
1450 pr->source_tile_width, pr->source_tile_height,
1451 needle->pixbuf, pr->func_tile_data);
1460 pr_source_tile_free(needle);
1470 st = g_new0(SourceTile, 1);
1471 st->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8,
1472 pr->source_tile_width, pr->source_tile_height);
1475 st->x = (x / pr->source_tile_width) * pr->source_tile_width;
1476 st->y = (y / pr->source_tile_height) * pr->source_tile_height;
1479 pr->source_tiles = g_list_prepend(pr->source_tiles, st);
1484 static SourceTile *pr_source_tile_request(PixbufRenderer *pr, gint x, gint y)
1488 st = pr_source_tile_new(pr, x, y);
1489 if (!st) return NULL;
1491 if (pr->func_tile_request &&
1492 pr->func_tile_request(pr, st->x, st->y,
1493 pr->source_tile_width, pr->source_tile_height, st->pixbuf, pr->func_tile_data))
1498 pr_tile_invalidate_region(pr, st->x * pr->scale, st->y * pr->scale,
1499 pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
1504 static SourceTile *pr_source_tile_find(PixbufRenderer *pr, gint x, gint y)
1508 work = pr->source_tiles;
1511 SourceTile *st = work->data;
1513 if (x >= st->x && x < st->x + pr->source_tile_width &&
1514 y >= st->y && y < st->y + pr->source_tile_height)
1516 if (work != pr->source_tiles)
1518 pr->source_tiles = g_list_remove_link(pr->source_tiles, work);
1519 pr->source_tiles = g_list_concat(work, pr->source_tiles);
1530 static GList *pr_source_tile_compute_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h, gint request)
1538 if (w > pr->image_width) w = pr->image_width;
1539 if (h > pr->image_height) h = pr->image_height;
1541 sx = (x / pr->source_tile_width) * pr->source_tile_width;
1542 sy = (y / pr->source_tile_height) * pr->source_tile_height;
1544 for (x1 = sx; x1 < x + w; x1+= pr->source_tile_width)
1546 for (y1 = sy; y1 < y + h; y1 += pr->source_tile_height)
1550 st = pr_source_tile_find(pr, x1, y1);
1551 if (!st && request) st = pr_source_tile_request(pr, x1, y1);
1553 if (st) list = g_list_prepend(list, st);
1557 return g_list_reverse(list);
1560 static void pr_source_tile_changed(PixbufRenderer *pr, gint x, gint y, gint width, gint height)
1564 if (width < 1 || height < 1) return;
1566 work = pr->source_tiles;
1570 gint rx, ry, rw, rh;
1575 if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1576 x, y, width, height,
1577 &rx, &ry, &rw, &rh))
1581 pixbuf = gdk_pixbuf_new_subpixbuf(st->pixbuf, rx - st->x, ry - st->y, rw, rh);
1582 if (pr->func_tile_request &&
1583 pr->func_tile_request(pr, rx, ry, rw, rh, pixbuf, pr->func_tile_data))
1585 pr_tile_invalidate_region(pr, rx * pr->scale, ry * pr->scale,
1586 rw * pr->scale, rh * pr->scale);
1588 g_object_unref(pixbuf);
1593 static gint pr_source_tile_render(PixbufRenderer *pr, ImageTile *it,
1594 gint x, gint y, gint w, gint h,
1595 gint new_data, gint fast)
1602 box = GTK_WIDGET(pr);
1604 if (pr->zoom == 1.0 || pr->scale == 1.0)
1606 list = pr_source_tile_compute_region(pr, it->x + x, it->y + y, w, h, TRUE);
1611 gint rx, ry, rw, rh;
1616 if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1617 it->x + x, it->y + y, w, h,
1618 &rx, &ry, &rw, &rh))
1622 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
1623 rx - st->x, ry - st->y, rw, rh);
1625 else /* (pr->zoom == 1.0 || pr->scale == 1.0) */
1627 gdk_draw_pixbuf(it->pixmap,
1628 box->style->fg_gc[GTK_WIDGET_STATE(box)],
1630 rx - st->x, ry - st->y,
1631 rx - it->x, ry - it->y,
1633 pr->dither_quality, rx, ry);
1640 gdouble scale_x, scale_y;
1641 gint sx, sy, sw, sh;
1643 if (pr->image_width == 0 || pr->image_height == 0) return FALSE;
1644 scale_x = (gdouble)pr->width / pr->image_width;
1645 scale_y = (gdouble)pr->height / pr->image_height;
1647 sx = (gdouble)(it->x + x) / scale_x;
1648 sy = (gdouble)(it->y + y) / scale_y;
1649 sw = (gdouble)w / scale_x;
1650 sh = (gdouble)h / scale_y;
1652 if (pr->width < PR_MIN_SCALE_SIZE || pr->height < PR_MIN_SCALE_SIZE) fast = TRUE;
1655 /* draws red over draw region, to check for leaks (regions not filled) */
1656 pixbuf_set_rect_fill(it->pixbuf, x, y, w, h, 255, 0, 0, 255);
1659 list = pr_source_tile_compute_region(pr, sx, sy, sw, sh, TRUE);
1664 gint rx, ry, rw, rh;
1665 gint stx, sty, stw, sth;
1670 stx = floor((gdouble)st->x * scale_x);
1671 sty = floor((gdouble)st->y * scale_y);
1672 stw = ceil((gdouble)(st->x + pr->source_tile_width) * scale_x) - stx;
1673 sth = ceil((gdouble)(st->y + pr->source_tile_height) * scale_y) - sty;
1675 if (pr_clip_region(stx, sty, stw, sth,
1676 it->x + x, it->y + y, w, h,
1677 &rx, &ry, &rw, &rh))
1681 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
1682 rx - st->x, ry - st->y, rw, rh);
1689 /* may need to use unfloored stx,sty values here */
1690 offset_x = (gdouble)(stx - it->x);
1691 offset_y = (gdouble)(sty - it->y);
1693 gdk_pixbuf_scale(st->pixbuf, it->pixbuf, rx - it->x, ry - it->y, rw, rh,
1694 (gdouble) 0.0 + offset_x,
1695 (gdouble) 0.0 + offset_y,
1697 (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality);
1709 void pixbuf_renderer_set_tiles(PixbufRenderer *pr, gint width, gint height,
1710 gint tile_width, gint tile_height, gint cache_size,
1711 PixbufRendererTileRequestFunc func_request,
1712 PixbufRendererTileDisposeFunc func_dispose,
1716 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1717 g_return_if_fail(tile_width >= 32 && tile_width >= 32);
1718 g_return_if_fail(width >= 32 && height > 32);
1719 g_return_if_fail(func_request != NULL);
1721 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1724 pr_source_tile_unset(pr);
1726 if (cache_size < 4) cache_size = 4;
1728 pr->source_tiles_enabled = TRUE;
1729 pr->source_tiles_cache_size = cache_size;
1730 pr->source_tile_width = tile_width;
1731 pr->source_tile_height = tile_height;
1733 pr->image_width = width;
1734 pr->image_height = height;
1736 pr->func_tile_request = func_request;
1737 pr->func_tile_dispose = func_dispose;
1738 pr->func_tile_data = user_data;
1740 pr_zoom_sync(pr, zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
1741 pr_redraw(pr, TRUE);
1744 void pixbuf_renderer_set_tiles_size(PixbufRenderer *pr, gint width, gint height)
1746 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1747 g_return_if_fail(width >= 32 && height > 32);
1749 if (!pr->source_tiles_enabled) return;
1750 if (pr->image_width == width && pr->image_height == height) return;
1752 pr->image_width = width;
1753 pr->image_height = height;
1755 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
1758 gint pixbuf_renderer_get_tiles(PixbufRenderer *pr)
1760 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
1762 return pr->source_tiles_enabled;
1765 static void pr_zoom_adjust_real(PixbufRenderer *pr, gdouble increment,
1766 PrZoomFlags flags, gint x, gint y)
1768 gdouble zoom = pr->zoom;
1770 if (increment == 0.0) return;
1774 if (pr->scale < 1.0)
1776 zoom = 0.0 - 1.0 / pr->scale;
1784 if (increment < 0.0)
1786 if (zoom >= 1.0 && zoom + increment < 1.0)
1788 zoom = zoom + increment - 2.0;
1792 zoom = zoom + increment;
1797 if (zoom <= -1.0 && zoom + increment > -1.0)
1799 zoom = zoom + increment + 2.0;
1803 zoom = zoom + increment;
1807 pr_zoom_sync(pr, zoom, flags, x, y);
1811 *-------------------------------------------------------------------
1813 *-------------------------------------------------------------------
1816 static ImageTile *pr_tile_new(gint x, gint y, gint width, gint height)
1820 it = g_new0(ImageTile, 1);
1827 it->render_done = TILE_RENDER_NONE;
1832 static void pr_tile_free(ImageTile *it)
1836 if (it->pixbuf) gdk_pixbuf_unref(it->pixbuf);
1837 if (it->pixmap) g_object_unref(it->pixmap);
1842 static void pr_tile_free_all(PixbufRenderer *pr)
1857 g_list_free(pr->tiles);
1859 pr->tile_cache_size = 0;
1862 static ImageTile *pr_tile_add(PixbufRenderer *pr, gint x, gint y)
1866 it = pr_tile_new(x, y, pr->tile_width, pr->tile_height);
1868 if (it->x + it->w > pr->width) it->w = pr->width - it->x;
1869 if (it->y + it->h > pr->height) it->h = pr->height - it->y;
1871 pr->tiles = g_list_prepend(pr->tiles, it);
1872 pr->tile_cache_size += it->size;
1877 static void pr_tile_remove(PixbufRenderer *pr, ImageTile *it)
1881 QueueData *qd = it->qd;
1884 pr->draw_queue = g_list_remove(pr->draw_queue, qd);
1890 QueueData *qd = it->qd2;
1893 pr->draw_queue_2pass = g_list_remove(pr->draw_queue_2pass, qd);
1897 pr->tiles = g_list_remove(pr->tiles, it);
1898 pr->tile_cache_size -= it->size;
1903 static void pr_tile_free_space(PixbufRenderer *pr, guint space, ImageTile *it)
1908 work = g_list_last(pr->tiles);
1910 if (pr->source_tiles_enabled && pr->scale < 1.0)
1914 tiles = (pr->vis_width / pr->tile_width + 1) * (pr->vis_height / pr->tile_height + 1);
1915 tile_max = MAX(tiles * pr->tile_width * pr->tile_height * 3,
1916 (gint)((gdouble)pr->tile_cache_max * 1048576.0 * pr->scale));
1920 tile_max = pr->tile_cache_max * 1048576;
1923 while (work && pr->tile_cache_size + space > tile_max)
1927 needle = work->data;
1930 ((!needle->qd && !needle->qd2) || !pr_tile_is_visible(pr, needle))) pr_tile_remove(pr, needle);
1934 static void pr_tile_invalidate_all(PixbufRenderer *pr)
1946 it->render_done = TILE_RENDER_NONE;
1947 it->render_todo = TILE_RENDER_ALL;
1950 it->w = MIN(pr->tile_width, pr->width - it->x);
1951 it->h = MIN(pr->tile_height, pr->height - it->y);
1955 static void pr_tile_invalidate_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
1961 x1 = (gint)floor(x / pr->tile_width) * pr->tile_width;
1962 x2 = (gint)ceil((x + w) / pr->tile_width) * pr->tile_width;
1964 y1 = (gint)floor(y / pr->tile_height) * pr->tile_height;
1965 y2 = (gint)ceil((y + h) / pr->tile_height) * pr->tile_height;
1975 if (it->x < x2 && it->x + it->w > x1 &&
1976 it->y < y2 && it->y + it->h > y1)
1978 it->render_done = TILE_RENDER_NONE;
1979 it->render_todo = TILE_RENDER_ALL;
1984 static ImageTile *pr_tile_get(PixbufRenderer *pr, gint x, gint y, gint only_existing)
1994 if (it->x == x && it->y == y)
1996 pr->tiles = g_list_delete_link(pr->tiles, work);
1997 pr->tiles = g_list_prepend(pr->tiles, it);
2004 if (only_existing) return NULL;
2006 return pr_tile_add(pr, x, y);
2009 static void pr_tile_prepare(PixbufRenderer *pr, ImageTile *it)
2016 pixmap = gdk_pixmap_new(((GtkWidget *)pr)->window, pr->tile_width, pr->tile_height, -1);
2018 size = pixmap_calc_size(pixmap);
2019 pr_tile_free_space(pr, size, it);
2021 it->pixmap = pixmap;
2023 pr->tile_cache_size += size;
2026 if ((pr->zoom != 1.0 || pr->source_tiles_enabled || (pr->pixbuf && gdk_pixbuf_get_has_alpha(pr->pixbuf)) ||
2027 pr->orientation != EXIF_ORIENTATION_TOP_LEFT || pr->func_post_process) && !it->pixbuf)
2032 /* I don't think that we need a pixbuf with alpha channel here */
2035 pixbuf = gdk_pixbuf_new(gdk_pixbuf_get_colorspace(pr->pixbuf),
2036 gdk_pixbuf_get_has_alpha(pr->pixbuf),
2037 gdk_pixbuf_get_bits_per_sample(pr->pixbuf),
2038 pr->tile_width, pr->tile_height);
2043 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, pr->tile_width, pr->tile_height);
2046 size = gdk_pixbuf_get_rowstride(pixbuf) * pr->tile_height;
2047 pr_tile_free_space(pr, size, it);
2049 it->pixbuf = pixbuf;
2051 pr->tile_cache_size += size;
2056 *-------------------------------------------------------------------
2058 *-------------------------------------------------------------------
2062 static void pr_tile_coords_map_orientation(PixbufRenderer *pr,
2063 gdouble tile_x, gdouble tile_y, /* coordinates of the tile */
2064 gint image_w, gint image_h,
2065 gdouble tile_w, gdouble tile_h,
2066 gdouble *res_x, gdouble *res_y)
2070 switch (pr->orientation)
2072 case EXIF_ORIENTATION_TOP_LEFT:
2073 /* normal -- nothing to do */
2075 case EXIF_ORIENTATION_TOP_RIGHT:
2077 *res_x = image_w - tile_x - tile_w;
2079 case EXIF_ORIENTATION_BOTTOM_RIGHT:
2081 *res_x = image_w - tile_x - tile_w;
2082 *res_y = image_h - tile_y - tile_h;
2084 case EXIF_ORIENTATION_BOTTOM_LEFT:
2086 *res_y = image_h - tile_y - tile_h;
2088 case EXIF_ORIENTATION_LEFT_TOP:
2092 case EXIF_ORIENTATION_RIGHT_TOP:
2093 /* rotated -90 (270) */
2095 *res_y = image_w - tile_x - tile_w;
2097 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2098 *res_x = image_h - tile_y - tile_h;
2099 *res_y = image_w - tile_x - tile_w;
2101 case EXIF_ORIENTATION_LEFT_BOTTOM:
2103 *res_x = image_h - tile_y - tile_h;
2107 /* The other values are out of range */
2110 // log_printf("tile coord y:%f, ih:%d, th:%f ry:%f\n", tile_y, image_h, tile_h, *res_x);
2113 static void pr_tile_region_map_orientation(PixbufRenderer *pr,
2114 gint area_x, gint area_y, /* coordinates of the area inside tile */
2115 gint tile_w, gint tile_h,
2116 gint area_w, gint area_h,
2117 gint *res_x, gint *res_y,
2118 gint *res_w, gint *res_h)
2125 switch (pr->orientation)
2127 case EXIF_ORIENTATION_TOP_LEFT:
2128 /* normal -- nothing to do */
2130 case EXIF_ORIENTATION_TOP_RIGHT:
2132 *res_x = tile_w - area_x - area_w;
2134 case EXIF_ORIENTATION_BOTTOM_RIGHT:
2136 *res_x = tile_w - area_x - area_w;
2137 *res_y = tile_h - area_y - area_h;
2139 case EXIF_ORIENTATION_BOTTOM_LEFT:
2141 *res_y = tile_h - area_y - area_h;
2143 case EXIF_ORIENTATION_LEFT_TOP:
2149 case EXIF_ORIENTATION_RIGHT_TOP:
2150 /* rotated -90 (270) */
2152 *res_y = tile_w - area_x - area_w;
2156 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2157 *res_x = tile_h - area_y - area_h;
2158 *res_y = tile_w - area_x - area_w;
2162 case EXIF_ORIENTATION_LEFT_BOTTOM:
2164 *res_x = tile_h - area_y - area_h;
2170 /* The other values are out of range */
2173 // log_printf("inside y:%d, th:%d, ah:%d ry:%d\n", area_y, tile_h, area_h, *res_x);
2176 static void pr_coords_map_orientation_reverse(PixbufRenderer *pr,
2177 gint area_x, gint area_y,
2178 gint tile_w, gint tile_h,
2179 gint area_w, gint area_h,
2180 gint *res_x, gint *res_y,
2181 gint *res_w, gint *res_h)
2188 switch (pr->orientation)
2190 case EXIF_ORIENTATION_TOP_LEFT:
2191 /* normal -- nothing to do */
2193 case EXIF_ORIENTATION_TOP_RIGHT:
2195 *res_x = tile_w - area_x - area_w;
2197 case EXIF_ORIENTATION_BOTTOM_RIGHT:
2199 *res_x = tile_w - area_x - area_w;
2200 *res_y = tile_h - area_y - area_h;
2202 case EXIF_ORIENTATION_BOTTOM_LEFT:
2204 *res_y = tile_h - area_y - area_h;
2206 case EXIF_ORIENTATION_LEFT_TOP:
2212 case EXIF_ORIENTATION_RIGHT_TOP:
2213 /* rotated -90 (270) */
2214 *res_x = tile_w - area_y - area_h;
2219 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2220 *res_x = tile_w - area_y - area_h;
2221 *res_y = tile_h - area_x - area_w;
2225 case EXIF_ORIENTATION_LEFT_BOTTOM:
2228 *res_y = tile_h - area_x - area_w;
2233 /* The other values are out of range */
2239 static GdkPixbuf *pr_get_spare_tile(PixbufRenderer *pr)
2241 if (!pr->spare_tile) pr->spare_tile = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, pr->tile_width, pr->tile_height);
2242 return pr->spare_tile;
2245 #define COLOR_BYTES 3 /* rgb */
2247 static void pr_tile_rotate_90_clockwise(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2249 GdkPixbuf *src = *tile;
2252 guchar *s_pix, *d_pix;
2254 guchar *ip, *spi, *dpi;
2256 gint tw = pr->tile_width;
2258 srs = gdk_pixbuf_get_rowstride(src);
2259 s_pix = gdk_pixbuf_get_pixels(src);
2260 spi = s_pix + (x * COLOR_BYTES);
2262 dest = pr_get_spare_tile(pr);
2263 drs = gdk_pixbuf_get_rowstride(dest);
2264 d_pix = gdk_pixbuf_get_pixels(dest);
2265 dpi = d_pix + (tw - 1) * COLOR_BYTES;
2267 for (i = y; i < y + h; i++)
2269 sp = spi + (i * srs);
2270 ip = dpi - (i * COLOR_BYTES);
2271 for (j = x; j < x + w; j++)
2273 dp = ip + (j * drs);
2274 memcpy(dp, sp, COLOR_BYTES);
2279 pr->spare_tile = src;
2283 static void pr_tile_rotate_90_counter_clockwise(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2285 GdkPixbuf *src = *tile;
2288 guchar *s_pix, *d_pix;
2290 guchar *ip, *spi, *dpi;
2292 gint th = pr->tile_height;
2294 srs = gdk_pixbuf_get_rowstride(src);
2295 s_pix = gdk_pixbuf_get_pixels(src);
2296 spi = s_pix + (x * COLOR_BYTES);
2298 dest = pr_get_spare_tile(pr);
2299 drs = gdk_pixbuf_get_rowstride(dest);
2300 d_pix = gdk_pixbuf_get_pixels(dest);
2301 dpi = d_pix + (th - 1) * drs;
2303 for (i = y; i < y + h; i++)
2305 sp = spi + (i * srs);
2306 ip = dpi + (i * COLOR_BYTES);
2307 for (j = x; j < x + w; j++)
2309 dp = ip - (j * drs);
2310 memcpy(dp, sp, COLOR_BYTES);
2315 pr->spare_tile = src;
2319 static void pr_tile_mirror_only(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2321 GdkPixbuf *src = *tile;
2324 guchar *s_pix, *d_pix;
2329 gint tw = pr->tile_width;
2331 srs = gdk_pixbuf_get_rowstride(src);
2332 s_pix = gdk_pixbuf_get_pixels(src);
2333 spi = s_pix + (x * COLOR_BYTES);
2335 dest = pr_get_spare_tile(pr);
2336 drs = gdk_pixbuf_get_rowstride(dest);
2337 d_pix = gdk_pixbuf_get_pixels(dest);
2338 dpi = d_pix + (tw - x - 1) * COLOR_BYTES;
2340 for (i = y; i < y + h; i++)
2342 sp = spi + (i * srs);
2343 dp = dpi + (i * drs);
2344 for (j = 0; j < w; j++)
2346 memcpy(dp, sp, COLOR_BYTES);
2352 pr->spare_tile = src;
2356 static void pr_tile_mirror_and_flip(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2358 GdkPixbuf *src = *tile;
2361 guchar *s_pix, *d_pix;
2365 gint tw = pr->tile_width;
2366 gint th = pr->tile_height;
2368 srs = gdk_pixbuf_get_rowstride(src);
2369 s_pix = gdk_pixbuf_get_pixels(src);
2370 spi = s_pix + (x * COLOR_BYTES);
2372 dest = pr_get_spare_tile(pr);
2373 drs = gdk_pixbuf_get_rowstride(dest);
2374 d_pix = gdk_pixbuf_get_pixels(dest);
2375 dpi = d_pix + (th - 1) * drs + (tw - 1) * COLOR_BYTES;
2377 for (i = y; i < y + h; i++)
2379 sp = s_pix + (i * srs) + (x * COLOR_BYTES);
2380 dp = dpi - (i * drs) - (x * COLOR_BYTES);
2381 for (j = 0; j < w; j++)
2383 memcpy(dp, sp, COLOR_BYTES);
2389 pr->spare_tile = src;
2393 static void pr_tile_flip_only(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2395 GdkPixbuf *src = *tile;
2398 guchar *s_pix, *d_pix;
2402 gint th = pr->tile_height;
2404 srs = gdk_pixbuf_get_rowstride(src);
2405 s_pix = gdk_pixbuf_get_pixels(src);
2406 spi = s_pix + (x * COLOR_BYTES);
2408 dest = pr_get_spare_tile(pr);
2409 drs = gdk_pixbuf_get_rowstride(dest);
2410 d_pix = gdk_pixbuf_get_pixels(dest);
2411 dpi = d_pix + (th - 1) * drs + (x * COLOR_BYTES);
2413 for (i = y; i < y + h; i++)
2415 sp = spi + (i * srs);
2416 dp = dpi - (i * drs);
2417 memcpy(dp, sp, w * COLOR_BYTES);
2420 pr->spare_tile = src;
2424 static void pr_tile_apply_orientation(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h)
2426 switch (pr->orientation)
2428 case EXIF_ORIENTATION_TOP_LEFT:
2429 /* normal -- nothing to do */
2431 case EXIF_ORIENTATION_TOP_RIGHT:
2434 pr_tile_mirror_only(pr, pixbuf, x, y, w, h);
2437 case EXIF_ORIENTATION_BOTTOM_RIGHT:
2440 pr_tile_mirror_and_flip(pr, pixbuf, x, y, w, h);
2443 case EXIF_ORIENTATION_BOTTOM_LEFT:
2446 pr_tile_flip_only(pr, pixbuf, x, y, w, h);
2449 case EXIF_ORIENTATION_LEFT_TOP:
2451 pr_tile_flip_only(pr, pixbuf, x, y, w, h);
2452 pr_tile_rotate_90_clockwise(pr, pixbuf, x, pr->tile_height - y - h, w, h);
2455 case EXIF_ORIENTATION_RIGHT_TOP:
2456 /* rotated -90 (270) */
2458 pr_tile_rotate_90_clockwise(pr, pixbuf, x, y, w, h);
2461 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2463 pr_tile_flip_only(pr, pixbuf, x, y, w, h);
2464 pr_tile_rotate_90_counter_clockwise(pr, pixbuf, x, pr->tile_height - y - h, w, h);
2467 case EXIF_ORIENTATION_LEFT_BOTTOM:
2470 pr_tile_rotate_90_counter_clockwise(pr, pixbuf, x, y, w, h);
2474 /* The other values are out of range */
2480 static void pr_tile_render(PixbufRenderer *pr, ImageTile *it,
2481 gint x, gint y, gint w, gint h,
2482 gint new_data, gint fast)
2488 if (it->render_todo == TILE_RENDER_NONE && it->pixmap && !new_data) return;
2490 if (it->render_done != TILE_RENDER_ALL)
2496 if (!fast) it->render_done = TILE_RENDER_ALL;
2498 else if (it->render_todo != TILE_RENDER_AREA)
2500 if (!fast) it->render_todo = TILE_RENDER_NONE;
2504 if (!fast) it->render_todo = TILE_RENDER_NONE;
2506 if (new_data) it->blank = FALSE;
2508 pr_tile_prepare(pr, it);
2509 has_alpha = (pr->pixbuf && gdk_pixbuf_get_has_alpha(pr->pixbuf));
2511 box = GTK_WIDGET(pr);
2513 /* FIXME checker colors for alpha should be configurable,
2514 * also should be drawn for blank = TRUE
2519 /* no data, do fast rect fill */
2520 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
2521 0, 0, it->w, it->h);
2523 else if (pr->source_tiles_enabled)
2525 draw = pr_source_tile_render(pr, it, x, y, w, h, new_data, fast);
2527 else if (pr->zoom == 1.0 || pr->scale == 1.0)
2530 gdouble src_x, src_y;
2533 pr_tile_coords_map_orientation(pr, it->x, it->y,
2534 pr->image_width, pr->image_height,
2535 pr->tile_width, pr->tile_height,
2537 pr_tile_region_map_orientation(pr, x, y,
2538 pr->tile_width, pr->tile_height,
2545 gdk_pixbuf_composite_color(pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
2546 (gdouble) 0.0 - src_x,
2547 (gdouble) 0.0 - src_y,
2548 1.0, 1.0, GDK_INTERP_NEAREST,
2549 255, it->x + pb_x, it->y + pb_y,
2550 PR_ALPHA_CHECK_SIZE, PR_ALPHA_CHECK1, PR_ALPHA_CHECK2);
2551 pr_tile_apply_orientation(pr, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
2558 if (pr->orientation == EXIF_ORIENTATION_TOP_LEFT && !(pr->func_post_process && !(pr->post_process_slow && fast)))
2560 /* faster, simple, base orientation, no postprocessing */
2561 gdk_draw_pixbuf(it->pixmap,
2562 box->style->fg_gc[GTK_WIDGET_STATE(box)],
2564 it->x + x, it->y + y,
2567 pr->dither_quality, it->x + x, it->y + y);
2571 gdk_pixbuf_copy_area(pr->pixbuf,
2572 src_x + pb_x, src_y + pb_y,
2576 pr_tile_apply_orientation(pr, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
2583 gdouble scale_x, scale_y;
2584 gdouble src_x, src_y;
2588 if (pr->image_width == 0 || pr->image_height == 0) return;
2590 scale_x = (gdouble)pr->width / pr->image_width;
2591 scale_y = (gdouble)pr->height / pr->image_height;
2593 pr_tile_coords_map_orientation(pr, it->x / scale_x, it->y /scale_y ,
2594 pr->image_width, pr->image_height,
2595 pr->tile_width / scale_x , pr->tile_height / scale_y,
2597 pr_tile_region_map_orientation(pr, x, y,
2598 pr->tile_width, pr->tile_height,
2603 /* HACK: The pixbuf scalers get kinda buggy(crash) with extremely
2604 * small sizes for anything but GDK_INTERP_NEAREST
2606 if (pr->width < PR_MIN_SCALE_SIZE || pr->height < PR_MIN_SCALE_SIZE) fast = TRUE;
2610 gdk_pixbuf_scale(pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
2611 (gdouble) 0.0 - src_x * scale_x,
2612 (gdouble) 0.0 - src_y * scale_y,
2614 (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality);
2618 gdk_pixbuf_composite_color(pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
2619 (gdouble) 0.0 - src_x * scale_x,
2620 (gdouble) 0.0 - src_y * scale_y,
2622 (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality,
2623 255, it->x + pb_x, it->y + pb_y,
2624 PR_ALPHA_CHECK_SIZE, PR_ALPHA_CHECK1, PR_ALPHA_CHECK2);
2626 pr_tile_apply_orientation(pr, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
2630 if (draw && it->pixbuf && !it->blank)
2633 if (pr->func_post_process && !(pr->post_process_slow && fast))
2634 pr->func_post_process(pr, &it->pixbuf, x, y, w, h, pr->post_process_user_data);
2636 gdk_draw_pixbuf(it->pixmap,
2637 box->style->fg_gc[GTK_WIDGET_STATE(box)],
2642 pr->dither_quality, it->x + x, it->y + y);
2646 /* enable this line for debugging the edges of tiles */
2647 gdk_draw_rectangle(it->pixmap, box->style->white_gc,
2648 FALSE, 0, 0, it->w, it->h);
2649 gdk_draw_rectangle(it->pixmap, box->style->white_gc,
2655 static void pr_tile_expose(PixbufRenderer *pr, ImageTile *it,
2656 gint x, gint y, gint w, gint h,
2657 gint new_data, gint fast)
2661 pr_tile_render(pr, it, x, y, w, h, new_data, fast);
2663 box = GTK_WIDGET(pr);
2665 gdk_draw_drawable(box->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
2667 pr->x_offset + (it->x - pr->x_scroll) + x, pr->y_offset + (it->y - pr->y_scroll) + y, w, h);
2669 if (pr->overlay_list)
2671 pr_overlay_draw(pr, pr->x_offset + (it->x - pr->x_scroll) + x,
2672 pr->y_offset + (it->y - pr->y_scroll) + y,
2679 static gint pr_tile_is_visible(PixbufRenderer *pr, ImageTile *it)
2681 return (it->x + it->w >= pr->x_scroll && it->x < pr->x_scroll + pr->vis_width &&
2682 it->y + it->h >= pr->y_scroll && it->y < pr->y_scroll + pr->vis_height);
2686 *-------------------------------------------------------------------
2688 *-------------------------------------------------------------------
2691 static gint pr_queue_draw_idle_cb(gpointer data)
2693 PixbufRenderer *pr = data;
2697 if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
2698 (!pr->draw_queue && !pr->draw_queue_2pass) ||
2699 pr->draw_idle_id == -1)
2701 pr_render_complete_signal(pr);
2703 pr->draw_idle_id = -1;
2709 qd = pr->draw_queue->data;
2710 fast = ((pr->zoom_2pass && pr->zoom_quality != GDK_INTERP_NEAREST && pr->scale != 1.0) || pr->post_process_slow);
2716 /* still loading, wait till done (also drops the higher priority) */
2718 pr->draw_idle_id = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE,
2719 pr_queue_draw_idle_cb, pr, NULL);
2720 pr->draw_idle_high = FALSE;
2724 qd = pr->draw_queue_2pass->data;
2728 if (GTK_WIDGET_REALIZED(pr))
2730 if (pr_tile_is_visible(pr, qd->it))
2732 pr_tile_expose(pr, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
2734 else if (qd->new_data)
2736 /* if new pixel data, and we already have a pixmap, update the tile */
2737 qd->it->blank = FALSE;
2738 if (qd->it->pixmap && qd->it->render_done == TILE_RENDER_ALL)
2740 pr_tile_render(pr, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
2748 pr->draw_queue = g_list_remove(pr->draw_queue, qd);
2753 pr_queue_merge(qd->it->qd2, qd);
2759 pr->draw_queue_2pass = g_list_append(pr->draw_queue_2pass, qd);
2770 pr->draw_queue_2pass = g_list_remove(pr->draw_queue_2pass, qd);
2774 if (!pr->draw_queue && !pr->draw_queue_2pass)
2776 pr_render_complete_signal(pr);
2778 pr->draw_idle_id = -1;
2785 static void pr_queue_list_free(GList *list)
2805 static void pr_queue_clear(PixbufRenderer *pr)
2807 pr_queue_list_free(pr->draw_queue);
2808 pr->draw_queue = NULL;
2810 pr_queue_list_free(pr->draw_queue_2pass);
2811 pr->draw_queue_2pass = NULL;
2813 if (pr->draw_idle_id != -1) g_source_remove(pr->draw_idle_id);
2814 pr->draw_idle_id = -1;
2817 static void pr_queue_merge(QueueData *parent, QueueData *qd)
2819 if (parent->x + parent->w < qd->x + qd->w)
2821 parent->w += (qd->x + qd->w) - (parent->x + parent->w);
2823 if (parent->x > qd->x)
2825 parent->w += parent->x - qd->x;
2829 if (parent->y + parent->h < qd->y + qd->h)
2831 parent->h += (qd->y + qd->h) - (parent->y + parent->h);
2833 if (parent->y > qd->y)
2835 parent->h += parent->y - qd->y;
2839 parent->new_data |= qd->new_data;
2842 static gint pr_clamp_to_visible(PixbufRenderer *pr, gint *x, gint *y, gint *w, gint *h)
2850 vh = pr->vis_height;
2855 if (*x + *w < vx || *x > vx + vw || *y + *h < vy || *y > vy + vh) return FALSE;
2858 nx = CLAMP(*x, vx, vx + vw);
2859 nw = CLAMP(*w - (nx - *x), 1, vw);
2861 ny = CLAMP(*y, vy, vy + vh);
2862 nh = CLAMP(*h - (ny - *y), 1, vh);
2872 static gint pr_queue_to_tiles(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
2873 gint clamp, ImageTileRenderType render, gint new_data, gint only_existing)
2879 if (clamp && !pr_clamp_to_visible(pr, &x, &y, &w, &h)) return FALSE;
2881 x1 = (gint)floor(x / pr->tile_width) * pr->tile_width;
2882 x2 = (gint)ceil((x + w) / pr->tile_width) * pr->tile_width;
2884 y1 = (gint)floor(y / pr->tile_height) * pr->tile_height;
2885 y2 = (gint)ceil((y + h) / pr->tile_height) * pr->tile_height;
2887 for (j = y1; j <= y2; j += pr->tile_height)
2889 for (i = x1; i <= x2; i += pr->tile_width)
2893 it = pr_tile_get(pr, i, j,
2895 (i + pr->tile_width < pr->x_scroll ||
2896 i > pr->x_scroll + pr->vis_width ||
2897 j + pr->tile_height < pr->y_scroll ||
2898 j > pr->y_scroll + pr->vis_height)));
2903 if ((render == TILE_RENDER_ALL && it->render_done != TILE_RENDER_ALL) ||
2904 (render == TILE_RENDER_AREA && it->render_todo != TILE_RENDER_ALL))
2906 it->render_todo = render;
2909 qd = g_new(QueueData, 1);
2911 qd->new_data = new_data;
2921 qd->w = x + w - i - qd->x;
2922 if (qd->x + qd->w > pr->tile_width) qd->w = pr->tile_width - qd->x;
2932 qd->h = y + h - j - qd->y;
2933 if (qd->y + qd->h > pr->tile_height) qd->h = pr->tile_height - qd->y;
2935 if (qd->w < 1 || qd->h < 1)
2941 pr_queue_merge(it->qd, qd);
2947 pr->draw_queue = g_list_append(pr->draw_queue, qd);
2956 static void pr_queue(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
2957 gint clamp, ImageTileRenderType render, gint new_data, gint only_existing)
2961 nx = CLAMP(x, 0, pr->width - 1);
2962 ny = CLAMP(y, 0, pr->height - 1);
2965 w = CLAMP(w, 0, pr->width - nx);
2966 h = CLAMP(h, 0, pr->height - ny);
2967 if (w < 1 || h < 1) return;
2969 if (pr_queue_to_tiles(pr, nx, ny, w, h, clamp, render, new_data, only_existing) &&
2970 ((!pr->draw_queue && !pr->draw_queue_2pass) || pr->draw_idle_id == -1 || !pr->draw_idle_high))
2972 if (pr->draw_idle_id != -1) g_source_remove(pr->draw_idle_id);
2973 pr->draw_idle_id = g_idle_add_full(GDK_PRIORITY_REDRAW,
2974 pr_queue_draw_idle_cb, pr, NULL);
2975 pr->draw_idle_high = TRUE;
2979 static void pr_redraw(PixbufRenderer *pr, gint new_data)
2982 pr_queue(pr, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, new_data, FALSE);
2986 *-------------------------------------------------------------------
2988 *-------------------------------------------------------------------
2991 static void pr_update_signal(PixbufRenderer *pr)
2994 log_printf("FIXME: send updated signal\n");
2996 DEBUG_1("%s pixbuf renderer updated - started drawing %p", get_exec_time(), pr);
2997 pr->debug_updated = TRUE;
3000 static void pr_zoom_signal(PixbufRenderer *pr)
3002 g_signal_emit(pr, signals[SIGNAL_ZOOM], 0, pr->zoom);
3005 static void pr_clicked_signal(PixbufRenderer *pr, GdkEventButton *bevent)
3007 g_signal_emit(pr, signals[SIGNAL_CLICKED], 0, bevent);
3010 static void pr_scroll_notify_signal(PixbufRenderer *pr)
3012 g_signal_emit(pr, signals[SIGNAL_SCROLL_NOTIFY], 0);
3015 static void pr_render_complete_signal(PixbufRenderer *pr)
3019 g_signal_emit(pr, signals[SIGNAL_RENDER_COMPLETE], 0);
3020 g_object_set(G_OBJECT(pr), "complete", TRUE, NULL);
3022 if (pr->debug_updated)
3024 DEBUG_1("%s pixbuf renderer done %p", get_exec_time(), pr);
3025 pr->debug_updated = FALSE;
3029 static void pr_drag_signal(PixbufRenderer *pr, GdkEventButton *bevent)
3031 g_signal_emit(pr, signals[SIGNAL_DRAG], 0, bevent);
3035 *-------------------------------------------------------------------
3037 *-------------------------------------------------------------------
3040 static gint pr_scroll_clamp(PixbufRenderer *pr)
3045 if (pr->zoom == 0.0)
3053 old_xs = pr->x_scroll;
3054 old_ys = pr->y_scroll;
3056 if (pr->x_offset > 0)
3062 pr->x_scroll = CLAMP(pr->x_scroll, 0, pr->width - pr->vis_width);
3065 if (pr->y_offset > 0)
3071 pr->y_scroll = CLAMP(pr->y_scroll, 0, pr->height - pr->vis_height);
3074 return (old_xs != pr->x_scroll || old_ys != pr->y_scroll);
3077 static gint pr_size_clamp(PixbufRenderer *pr)
3079 gint old_vw, old_vh;
3081 old_vw = pr->vis_width;
3082 old_vh = pr->vis_height;
3084 if (pr->width < pr->window_width)
3086 pr->vis_width = pr->width;
3087 pr->x_offset = (pr->window_width - pr->width) / 2;
3091 pr->vis_width = pr->window_width;
3095 if (pr->height < pr->window_height)
3097 pr->vis_height = pr->height;
3098 pr->y_offset = (pr->window_height - pr->height) / 2;
3102 pr->vis_height = pr->window_height;
3106 return (old_vw != pr->vis_width || old_vh != pr->vis_height);
3109 static gint pr_zoom_clamp(PixbufRenderer *pr, gdouble zoom,
3110 PrZoomFlags flags, gboolean *redrawn)
3115 gboolean force = !!(flags & PR_ZOOM_FORCE);
3116 gboolean new = !!(flags & PR_ZOOM_NEW);
3117 gboolean invalidate = !!(flags & PR_ZOOM_INVALIDATE);
3119 zoom = CLAMP(zoom, pr->zoom_min, pr->zoom_max);
3121 if (pr->zoom == zoom && !force) return FALSE;
3123 w = pr->image_width;
3124 h = pr->image_height;
3126 if (zoom == 0.0 && !pr->pixbuf)
3130 else if (zoom == 0.0)
3136 sizeable = (new && pr_parent_window_sizable(pr));
3140 max_w = gdk_screen_width();
3141 max_h = gdk_screen_height();
3143 if (pr->window_limit)
3145 max_w = max_w * pr->window_limit_size / 100;
3146 max_h = max_h * pr->window_limit_size / 100;
3151 max_w = pr->window_width;
3152 max_h = pr->window_height;
3155 if ((pr->zoom_expand && !sizeable) || w > max_w || h > max_h)
3157 if ((gdouble)max_w / w > (gdouble)max_h / h)
3159 scale = (gdouble)max_h / h;
3161 w = w * scale + 0.5;
3162 if (w > max_w) w = max_w;
3166 scale = (gdouble)max_w / w;
3168 h = h * scale + 0.5;
3169 if (h > max_h) h = max_h;
3172 if (pr->autofit_limit)
3174 gdouble factor = (gdouble)pr->autofit_limit_size / 100;
3175 w = w * factor + 0.5;
3176 h = h * factor + 0.5;
3177 scale = scale * factor;
3188 else if (zoom > 0.0) /* zoom orig, in */
3196 scale = 1.0 / (0.0 - zoom);
3201 invalid = (pr->width != w || pr->height != h);
3208 if (invalidate || invalid)
3210 pr_tile_invalidate_all(pr);
3211 pr_redraw(pr, TRUE);
3213 if (redrawn) *redrawn = (invalidate || invalid);
3218 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
3219 PrZoomFlags flags, gint px, gint py)
3222 gint old_cx, old_cy;
3225 gboolean redrawn = FALSE;
3226 gboolean center_point = !!(flags & PR_ZOOM_CENTER);
3227 gboolean force = !!(flags & PR_ZOOM_FORCE);
3228 gboolean new = !!(flags & PR_ZOOM_NEW);
3229 PrZoomFlags clamp_flags = flags;
3231 old_scale = pr->scale;
3234 px = CLAMP(px, 0, pr->width);
3235 py = CLAMP(py, 0, pr->height);
3236 old_cx = pr->x_scroll + (px - pr->x_offset);
3237 old_cy = pr->y_scroll + (py - pr->y_offset);
3242 old_cx = pr->x_scroll + pr->vis_width / 2;
3243 old_cy = pr->y_scroll + pr->vis_height / 2;
3246 if (force) clamp_flags |= PR_ZOOM_INVALIDATE;
3247 if (!pr_zoom_clamp(pr, zoom, clamp_flags, &redrawn)) return;
3249 clamped = pr_size_clamp(pr);
3250 sized = pr_parent_window_resize(pr, pr->width, pr->height);
3254 switch (pr->scroll_reset)
3256 case PR_SCROLL_RESET_NOCHANGE:
3257 /* maintain old scroll position, do nothing */
3259 case PR_SCROLL_RESET_CENTER:
3260 /* center new image */
3261 pr->x_scroll = ((gdouble)pr->image_width / 2.0 * pr->scale) - pr->vis_width / 2;
3262 pr->y_scroll = ((gdouble)pr->image_height / 2.0 * pr->scale) - pr->vis_height / 2;
3264 case PR_SCROLL_RESET_TOPLEFT:
3266 /* reset to upper left */
3274 /* user zoom does not force, so keep visible center point */
3277 pr->x_scroll = old_cx / old_scale * pr->scale - (px - pr->x_offset);
3278 pr->y_scroll = old_cy / old_scale * pr->scale - (py - pr->y_offset);
3282 pr->x_scroll = old_cx / old_scale * pr->scale - (pr->vis_width / 2);
3283 pr->y_scroll = old_cy / old_scale * pr->scale - (pr->vis_height / 2);
3287 pr_scroll_clamp(pr);
3289 /* If the window was not sized, redraw the image - we know there will be no size/expose signal.
3290 * But even if a size is claimed, there is no guarantee that the window manager will allow it,
3291 * so redraw the window anyway :/
3293 if (sized || clamped) pr_border_clear(pr);
3294 pr_redraw(pr, redrawn);
3296 pr_scroll_notify_signal(pr);
3298 pr_update_signal(pr);
3301 static void pr_size_sync(PixbufRenderer *pr, gint new_width, gint new_height)
3303 gint zoom_changed = FALSE;
3305 if (pr->window_width == new_width && pr->window_height == new_height) return;
3307 pr->window_width = new_width;
3308 pr->window_height = new_height;
3310 if (pr->zoom == 0.0)
3312 gdouble old_scale = pr->scale;
3313 pr_zoom_clamp(pr, 0.0, PR_ZOOM_FORCE, NULL);
3314 zoom_changed = (old_scale != pr->scale);
3318 pr_scroll_clamp(pr);
3320 pr_overlay_update_sizes(pr);
3322 /* ensure scroller remains visible */
3323 if (pr->scroller_overlay != -1)
3325 gint update = FALSE;
3327 if (pr->scroller_x > new_width)
3329 pr->scroller_x = new_width;
3330 pr->scroller_xpos = new_width;
3333 if (pr->scroller_y > new_height)
3335 pr->scroller_y = new_height;
3336 pr->scroller_ypos = new_height;
3344 if (pixbuf_renderer_overlay_get(pr, pr->scroller_overlay, &pixbuf, NULL, NULL))
3348 w = gdk_pixbuf_get_width(pixbuf);
3349 h = gdk_pixbuf_get_height(pixbuf);
3350 pixbuf_renderer_overlay_set(pr, pr->scroller_overlay, pixbuf,
3351 pr->scroller_x - w / 2, pr->scroller_y - h / 2);
3356 pr_border_clear(pr);
3358 pr_scroll_notify_signal(pr);
3359 if (zoom_changed) pr_zoom_signal(pr);
3360 pr_update_signal(pr);
3363 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
3365 PixbufRenderer *pr = data;
3367 pr_size_sync(pr, allocation->width, allocation->height);
3370 static void pixbuf_renderer_paint(PixbufRenderer *pr, GdkRectangle *area)
3374 pr_border_draw(pr, area->x, area->y, area->width, area->height);
3376 x = MAX(0, (gint)area->x - pr->x_offset + pr->x_scroll);
3377 y = MAX(0, (gint)area->y - pr->y_offset + pr->y_scroll);
3380 MIN((gint)area->width, pr->width - x),
3381 MIN((gint)area->height, pr->height - y),
3382 FALSE, TILE_RENDER_ALL, FALSE, FALSE);
3386 *-------------------------------------------------------------------
3388 *-------------------------------------------------------------------
3391 void pixbuf_renderer_scroll(PixbufRenderer *pr, gint x, gint y)
3397 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3399 if (!pr->pixbuf && !pr->source_tiles_enabled) return;
3401 old_x = pr->x_scroll;
3402 old_y = pr->y_scroll;
3407 pr_scroll_clamp(pr);
3408 if (pr->x_scroll == old_x && pr->y_scroll == old_y) return;
3410 pr_scroll_notify_signal(pr);
3412 x_off = pr->x_scroll - old_x;
3413 y_off = pr->y_scroll - old_y;
3415 w = pr->vis_width - abs(x_off);
3416 h = pr->vis_height - abs(y_off);
3420 /* scrolled completely to new material */
3421 pr_queue(pr, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
3454 box = GTK_WIDGET(pr);
3456 gc = gdk_gc_new(box->window);
3457 gdk_gc_set_exposures(gc, TRUE);
3458 gdk_draw_drawable(box->window, gc,
3460 x2 + pr->x_offset, y2 + pr->y_offset,
3461 x1 + pr->x_offset, y1 + pr->y_offset, w, h);
3464 if (pr->overlay_list)
3466 pr_overlay_queue_all(pr);
3469 w = pr->vis_width - w;
3470 h = pr->vis_height - h;
3475 x_off > 0 ? pr->x_scroll + (pr->vis_width - w) : pr->x_scroll, pr->y_scroll,
3476 w, pr->vis_height, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
3480 /* FIXME, to optimize this, remove overlap */
3482 pr->x_scroll, y_off > 0 ? pr->y_scroll + (pr->vis_height - h) : pr->y_scroll,
3483 pr->vis_width, h, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
3486 /* process exposures here, "expose_event" seems to miss a few with obstructed windows */
3487 while ((event = gdk_event_get_graphics_expose(box->window)) != NULL)
3489 pixbuf_renderer_paint(pr, &event->expose.area);
3491 if (event->expose.count == 0)
3493 gdk_event_free(event);
3496 gdk_event_free(event);
3501 void pixbuf_renderer_scroll_to_point(PixbufRenderer *pr, gint x, gint y,
3502 gdouble x_align, gdouble y_align)
3507 x_align = CLAMP(x_align, 0.0, 1.0);
3508 y_align = CLAMP(y_align, 0.0, 1.0);
3510 ax = (gdouble)pr->vis_width * x_align;
3511 ay = (gdouble)pr->vis_height * y_align;
3513 px = (gdouble)x * pr->scale - (pr->x_scroll + ax);
3514 py = (gdouble)y * pr->scale - (pr->y_scroll + ay);
3516 pixbuf_renderer_scroll(pr, px, py);
3519 /* get or set coordinates of viewport center in the image, in range 0.0 - 1.0 */
3521 void pixbuf_renderer_get_scroll_center(PixbufRenderer *pr, gdouble *x, gdouble *y)
3525 src_x = pr->x_scroll + pr->vis_width / 2;
3526 src_y = pr->y_scroll + pr->vis_height / 2;
3529 *x = (gdouble)src_x / pr->width;
3531 *x = 0.5; /* center */
3534 *y = (gdouble)src_y / pr->height;
3536 *y = 0.5; /* center */
3539 void pixbuf_renderer_set_scroll_center(PixbufRenderer *pr, gdouble x, gdouble y)
3541 gdouble dst_x, dst_y;
3543 dst_x = x * pr->width - pr->vis_width / 2 - pr->x_scroll + CLAMP(pr->subpixel_x_scroll, -1.0, 1.0);
3544 dst_y = y * pr->height - pr->vis_height / 2 - pr->y_scroll + CLAMP(pr->subpixel_y_scroll, -1.0, 1.0);
3546 pr->subpixel_x_scroll = dst_x - (gint)dst_x;
3547 pr->subpixel_y_scroll = dst_y - (gint)dst_y;
3549 pixbuf_renderer_scroll(pr, (gint)dst_x, (gint)dst_y);
3554 *-------------------------------------------------------------------
3556 *-------------------------------------------------------------------
3559 static gint pr_mouse_motion_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
3564 pr = PIXBUF_RENDERER(widget);
3566 if (pr->scroller_id != -1)
3568 pr->scroller_xpos = bevent->x;
3569 pr->scroller_ypos = bevent->y;
3572 if (!pr->in_drag || !gdk_pointer_is_grabbed()) return FALSE;
3574 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
3580 widget_set_cursor(widget, GDK_FLEUR);
3583 if (bevent->state & GDK_SHIFT_MASK)
3585 accel = PR_PAN_SHIFT_MULTIPLIER;
3593 pixbuf_renderer_scroll(pr, (pr->drag_last_x - bevent->x) * accel,
3594 (pr->drag_last_y - bevent->y) * accel);
3596 pr_drag_signal(pr, bevent);
3598 pr->drag_last_x = bevent->x;
3599 pr->drag_last_y = bevent->y;
3604 static gint pr_mouse_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
3609 pr = PIXBUF_RENDERER(widget);
3611 if (pr->scroller_id != -1) return TRUE;
3613 switch (bevent->button)
3615 case MOUSE_BUTTON_LEFT:
3617 pr->drag_last_x = bevent->x;
3618 pr->drag_last_y = bevent->y;
3620 gdk_pointer_grab(widget->window, FALSE,
3621 GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
3622 NULL, NULL, bevent->time);
3623 gtk_grab_add(widget);
3625 case MOUSE_BUTTON_MIDDLE:
3628 case MOUSE_BUTTON_RIGHT:
3629 pr_clicked_signal(pr, bevent);
3635 parent = gtk_widget_get_parent(widget);
3636 if (widget && GTK_WIDGET_CAN_FOCUS(parent))
3638 gtk_widget_grab_focus(parent);
3644 static gint pr_mouse_release_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
3648 pr = PIXBUF_RENDERER(widget);
3650 if (pr->scroller_id != -1)
3652 pr_scroller_stop(pr);
3656 if (gdk_pointer_is_grabbed() && GTK_WIDGET_HAS_GRAB(pr))
3658 gtk_grab_remove(widget);
3659 gdk_pointer_ungrab(bevent->time);
3660 widget_set_cursor(widget, -1);
3663 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
3665 if (bevent->button == MOUSE_BUTTON_LEFT && (bevent->state & GDK_SHIFT_MASK))
3667 pr_scroller_start(pr, bevent->x, bevent->y);
3669 else if (bevent->button == MOUSE_BUTTON_LEFT || bevent->button == MOUSE_BUTTON_MIDDLE)
3671 pr_clicked_signal(pr, bevent);
3675 pr->in_drag = FALSE;
3680 static gint pr_mouse_leave_cb(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
3684 pr = PIXBUF_RENDERER(widget);
3686 if (pr->scroller_id != -1)
3688 pr->scroller_xpos = pr->scroller_x;
3689 pr->scroller_ypos = pr->scroller_y;
3690 pr->scroller_xinc = 0;
3691 pr->scroller_yinc = 0;
3697 static void pr_mouse_drag_cb(GtkWidget *widget, GdkDragContext *context, gpointer data)
3701 pr = PIXBUF_RENDERER(widget);
3703 pr->drag_moved = PR_DRAG_SCROLL_THRESHHOLD;
3706 static void pr_signals_connect(PixbufRenderer *pr)
3708 g_signal_connect(G_OBJECT(pr), "motion_notify_event",
3709 G_CALLBACK(pr_mouse_motion_cb), pr);
3710 g_signal_connect(G_OBJECT(pr), "button_press_event",
3711 G_CALLBACK(pr_mouse_press_cb), pr);
3712 g_signal_connect(G_OBJECT(pr), "button_release_event",
3713 G_CALLBACK(pr_mouse_release_cb), pr);
3714 g_signal_connect(G_OBJECT(pr), "leave_notify_event",
3715 G_CALLBACK(pr_mouse_leave_cb), pr);
3717 gtk_widget_set_events(GTK_WIDGET(pr), GDK_POINTER_MOTION_MASK |
3718 GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
3719 GDK_LEAVE_NOTIFY_MASK);
3721 g_signal_connect(G_OBJECT(pr), "drag_begin",
3722 G_CALLBACK(pr_mouse_drag_cb), pr);
3727 *-------------------------------------------------------------------
3729 *-------------------------------------------------------------------
3731 static void pr_pixbuf_size_sync(PixbufRenderer *pr)
3733 if (!pr->pixbuf) return;
3734 switch (pr->orientation)
3736 case EXIF_ORIENTATION_LEFT_TOP:
3737 case EXIF_ORIENTATION_RIGHT_TOP:
3738 case EXIF_ORIENTATION_RIGHT_BOTTOM:
3739 case EXIF_ORIENTATION_LEFT_BOTTOM:
3740 pr->image_width = gdk_pixbuf_get_height(pr->pixbuf);
3741 pr->image_height = gdk_pixbuf_get_width(pr->pixbuf);
3744 pr->image_width = gdk_pixbuf_get_width(pr->pixbuf);
3745 pr->image_height = gdk_pixbuf_get_height(pr->pixbuf);
3749 static void pr_pixbuf_sync(PixbufRenderer *pr, gdouble zoom)
3755 /* no pixbuf so just clear the window */
3756 pr->image_width = 0;
3757 pr->image_height = 0;
3760 box = GTK_WIDGET(pr);
3762 if (GTK_WIDGET_REALIZED(box))
3764 gdk_window_clear(box->window);
3765 pr_overlay_draw(pr, 0, 0, pr->window_width, pr->window_height, NULL);
3768 pr_update_signal(pr);
3773 pr_pixbuf_size_sync(pr);
3774 pr_zoom_sync(pr, zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
3777 static void pr_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom)
3779 if (pixbuf) g_object_ref(pixbuf);
3780 if (pr->pixbuf) g_object_unref(pr->pixbuf);
3781 pr->pixbuf = pixbuf;
3783 pr_pixbuf_sync(pr, zoom);
3786 void pixbuf_renderer_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom)
3788 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3790 pr_source_tile_unset(pr);
3792 pr_set_pixbuf(pr, pixbuf, zoom);
3794 pr_update_signal(pr);
3797 GdkPixbuf *pixbuf_renderer_get_pixbuf(PixbufRenderer *pr)
3799 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
3804 void pixbuf_renderer_set_orientation(PixbufRenderer *pr, gint orientation)
3806 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3808 pr->orientation = orientation;
3810 pr_pixbuf_size_sync(pr);
3811 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
3814 gint pixbuf_renderer_get_orientation(PixbufRenderer *pr)
3817 return pr->orientation;
3820 void pixbuf_renderer_set_post_process_func(PixbufRenderer *pr, PixbufRendererPostProcessFunc func, gpointer user_data, gint slow)
3822 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3824 pr->func_post_process = func;
3825 pr->post_process_user_data = user_data;
3826 pr->post_process_slow = func && slow;
3831 void pixbuf_renderer_move(PixbufRenderer *pr, PixbufRenderer *source)
3834 PixbufRendererScrollResetType scroll_reset;
3836 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3837 g_return_if_fail(IS_PIXBUF_RENDERER(source));
3839 if (pr == source) return;
3841 object = G_OBJECT(pr);
3843 g_object_set(object, "zoom_min", source->zoom_min, NULL);
3844 g_object_set(object, "zoom_max", source->zoom_max, NULL);
3845 g_object_set(object, "loading", source->loading, NULL);
3847 pr->complete = source->complete;
3849 pr->x_scroll = source->x_scroll;
3850 pr->y_scroll = source->y_scroll;
3852 scroll_reset = pr->scroll_reset;
3853 pr->scroll_reset = PR_SCROLL_RESET_NOCHANGE;
3855 pr->func_post_process = source->func_post_process;
3856 pr->post_process_user_data = source->post_process_user_data;
3857 pr->post_process_slow = source->post_process_slow;
3858 pr->orientation = source->orientation;
3860 if (source->source_tiles_enabled)
3862 pr_source_tile_unset(pr);
3864 pr->source_tiles_enabled = source->source_tiles_enabled;
3865 pr->source_tiles_cache_size = source->source_tiles_cache_size;
3866 pr->source_tile_width = source->source_tile_width;
3867 pr->source_tile_height = source->source_tile_height;
3868 pr->image_width = source->image_width;
3869 pr->image_height = source->image_height;
3871 pr->func_tile_request = source->func_tile_request;
3872 pr->func_tile_dispose = source->func_tile_dispose;
3873 pr->func_tile_data = source->func_tile_data;
3875 pr->source_tiles = source->source_tiles;
3876 source->source_tiles = NULL;
3878 pr_zoom_sync(pr, source->zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
3879 pr_redraw(pr, TRUE);
3883 pixbuf_renderer_set_pixbuf(pr, source->pixbuf, source->zoom);
3886 pr->scroll_reset = scroll_reset;
3888 pixbuf_renderer_set_pixbuf(source, NULL, source->zoom);
3889 pr_queue_clear(source);
3890 pr_tile_free_all(source);
3893 void pixbuf_renderer_area_changed(PixbufRenderer *pr, gint src_x, gint src_y, gint src_w, gint src_h)
3895 gint x, y, width, height, x1, y1, x2, y2;
3897 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3899 pr_coords_map_orientation_reverse(pr,
3901 pr->image_width, pr->image_height,
3906 if (pr->source_tiles_enabled)
3908 pr_source_tile_changed(pr, x, y, width, height);
3911 if (pr->scale != 1.0 && pr->zoom_quality != GDK_INTERP_NEAREST)
3913 /* increase region when using a zoom quality that may access surrounding pixels */
3918 x1 = (gint)floor((gdouble)x * pr->scale);
3919 y1 = (gint)floor((gdouble)y * pr->scale);
3920 x2 = (gint)ceil((gdouble)(x + width) * pr->scale);
3921 y2 = (gint)ceil((gdouble)(y + height) * pr->scale);
3923 pr_queue(pr, x1, y1, x2 - x1, y2 - y1, FALSE, TILE_RENDER_AREA, TRUE, TRUE);
3926 void pixbuf_renderer_zoom_adjust(PixbufRenderer *pr, gdouble increment)
3928 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3930 pr_zoom_adjust_real(pr, increment, PR_ZOOM_NONE, 0, 0);
3933 void pixbuf_renderer_zoom_adjust_at_point(PixbufRenderer *pr, gdouble increment, gint x, gint y)
3935 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3937 pr_zoom_adjust_real(pr, increment, PR_ZOOM_CENTER, x, y);
3940 void pixbuf_renderer_zoom_set(PixbufRenderer *pr, gdouble zoom)
3942 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3944 pr_zoom_sync(pr, zoom, PR_ZOOM_NONE, 0, 0);
3947 gdouble pixbuf_renderer_zoom_get(PixbufRenderer *pr)
3949 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
3954 gdouble pixbuf_renderer_zoom_get_scale(PixbufRenderer *pr)
3956 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
3961 void pixbuf_renderer_zoom_set_limits(PixbufRenderer *pr, gdouble min, gdouble max)
3963 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3965 if (min > 1.0 || max < 1.0) return;
3966 if (min < 1.0 && min > -1.0) return;
3967 if (min < -200.0 || max > 200.0) return;
3969 if (pr->zoom_min != min)
3972 g_object_notify(G_OBJECT(pr), "zoom_min");
3974 if (pr->zoom_max != max)
3977 g_object_notify(G_OBJECT(pr), "zoom_max");
3981 gint pixbuf_renderer_get_image_size(PixbufRenderer *pr, gint *width, gint *height)
3983 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
3984 g_return_val_if_fail(width != NULL && height != NULL, FALSE);
3986 if (!pr->pixbuf && !pr->source_tiles_enabled)
3993 *width = pr->image_width;
3994 *height = pr->image_height;
3998 gint pixbuf_renderer_get_scaled_size(PixbufRenderer *pr, gint *width, gint *height)
4000 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
4001 g_return_val_if_fail(width != NULL && height != NULL, FALSE);
4003 if (!pr->pixbuf && !pr->source_tiles_enabled)
4011 *height = pr->height;
4015 gint pixbuf_renderer_get_visible_rect(PixbufRenderer *pr, GdkRectangle *rect)
4017 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
4018 g_return_val_if_fail(rect != NULL, FALSE);
4020 if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
4030 rect->x = (gint)((gdouble)pr->x_scroll / pr->scale);
4031 rect->y = (gint)((gdouble)pr->y_scroll / pr->scale);
4032 rect->width = (gint)((gdouble)pr->vis_width / pr->scale);
4033 rect->height = (gint)((gdouble)pr->vis_height / pr->scale);
4037 gint pixbuf_renderer_get_virtual_rect(PixbufRenderer *pr, GdkRectangle *rect)
4039 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
4040 g_return_val_if_fail(rect != NULL, FALSE);
4042 if ((!pr->pixbuf && !pr->source_tiles_enabled))
4051 rect->x = pr->x_scroll;
4052 rect->y = pr->y_scroll;
4053 rect->width = pr->vis_width;
4054 rect->height = pr->vis_height;