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);
224 static gint pr_queue_draw_idle_cb(gpointer data);
228 *-------------------------------------------------------------------
229 * Pixbuf Renderer object
230 *-------------------------------------------------------------------
233 GType pixbuf_renderer_get_type(void)
235 static GType pixbuf_renderer_type = 0;
237 if (!pixbuf_renderer_type)
239 static const GTypeInfo pixbuf_renderer_info =
241 sizeof(PixbufRendererClass), /* class_size */
242 NULL, /* base_init */
243 NULL, /* base_finalize */
244 (GClassInitFunc)pixbuf_renderer_class_init,
245 NULL, /* class_finalize */
246 NULL, /* class_data */
247 sizeof(PixbufRenderer), /* instance_size */
249 (GInstanceInitFunc)pixbuf_renderer_init, /* instance_init */
250 NULL, /* value_table */
253 pixbuf_renderer_type = g_type_register_static(GTK_TYPE_EVENT_BOX, "PixbufRenderer",
254 &pixbuf_renderer_info, 0);
257 return pixbuf_renderer_type;
260 static void pixbuf_renderer_class_init(PixbufRendererClass *class)
262 GObjectClass *gobject_class = G_OBJECT_CLASS(class);
263 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(class);
265 parent_class = g_type_class_peek_parent(class);
267 gobject_class->set_property = pixbuf_renderer_set_property;
268 gobject_class->get_property = pixbuf_renderer_get_property;
270 gobject_class->finalize = pixbuf_renderer_finalize;
272 widget_class->expose_event = pixbuf_renderer_expose;
274 g_object_class_install_property(gobject_class,
276 g_param_spec_double("zoom_min",
282 G_PARAM_READABLE | G_PARAM_WRITABLE));
284 g_object_class_install_property(gobject_class,
286 g_param_spec_double("zoom_max",
292 G_PARAM_READABLE | G_PARAM_WRITABLE));
294 g_object_class_install_property(gobject_class,
296 g_param_spec_uint("zoom_quality",
302 G_PARAM_READABLE | G_PARAM_WRITABLE));
304 g_object_class_install_property(gobject_class,
306 g_param_spec_boolean("zoom_2pass",
310 G_PARAM_READABLE | G_PARAM_WRITABLE));
312 g_object_class_install_property(gobject_class,
314 g_param_spec_boolean("zoom_expand",
315 "Expand image in autozoom.",
318 G_PARAM_READABLE | G_PARAM_WRITABLE));
320 g_object_class_install_property(gobject_class,
322 g_param_spec_uint("dither_quality",
327 GDK_RGB_DITHER_NORMAL,
328 G_PARAM_READABLE | G_PARAM_WRITABLE));
330 g_object_class_install_property(gobject_class,
332 g_param_spec_uint("scroll_reset",
333 "New image scroll reset",
335 PR_SCROLL_RESET_TOPLEFT,
336 PR_SCROLL_RESET_NOCHANGE,
337 PR_SCROLL_RESET_TOPLEFT,
338 G_PARAM_READABLE | G_PARAM_WRITABLE));
340 g_object_class_install_property(gobject_class,
342 g_param_spec_boolean("delay_flip",
343 "Delay image update",
346 G_PARAM_READABLE | G_PARAM_WRITABLE));
348 g_object_class_install_property(gobject_class,
350 g_param_spec_boolean("loading",
351 "Image actively loading",
354 G_PARAM_READABLE | G_PARAM_WRITABLE));
356 g_object_class_install_property(gobject_class,
358 g_param_spec_boolean("complete",
359 "Image rendering complete",
362 G_PARAM_READABLE | G_PARAM_WRITABLE));
364 g_object_class_install_property(gobject_class,
365 PROP_CACHE_SIZE_DISPLAY,
366 g_param_spec_uint("cache_display",
367 "Display cache size MB",
371 PR_CACHE_SIZE_DEFAULT,
372 G_PARAM_READABLE | G_PARAM_WRITABLE));
374 g_object_class_install_property(gobject_class,
375 PROP_CACHE_SIZE_TILES,
376 g_param_spec_uint("cache_tiles",
378 "Number of tiles to retain in memory at any one time.",
381 PR_CACHE_SIZE_DEFAULT,
382 G_PARAM_READABLE | G_PARAM_WRITABLE));
384 g_object_class_install_property(gobject_class,
386 g_param_spec_boolean("window_fit",
387 "Fit window to image size",
390 G_PARAM_READABLE | G_PARAM_WRITABLE));
392 g_object_class_install_property(gobject_class,
394 g_param_spec_boolean("window_limit",
395 "Limit size of parent window",
398 G_PARAM_READABLE | G_PARAM_WRITABLE));
400 g_object_class_install_property(gobject_class,
401 PROP_WINDOW_LIMIT_VALUE,
402 g_param_spec_uint("window_limit_value",
403 "Size limit of parent window",
408 G_PARAM_READABLE | G_PARAM_WRITABLE));
410 g_object_class_install_property(gobject_class,
412 g_param_spec_boolean("autofit_limit",
413 "Limit size of image when autofitting",
416 G_PARAM_READABLE | G_PARAM_WRITABLE));
418 g_object_class_install_property(gobject_class,
419 PROP_AUTOFIT_LIMIT_VALUE,
420 g_param_spec_uint("autofit_limit_value",
421 "Size limit of image when autofitting",
426 G_PARAM_READABLE | G_PARAM_WRITABLE));
429 signals[SIGNAL_ZOOM] =
431 G_OBJECT_CLASS_TYPE(gobject_class),
433 G_STRUCT_OFFSET(PixbufRendererClass, zoom),
435 g_cclosure_marshal_VOID__DOUBLE,
439 signals[SIGNAL_CLICKED] =
440 g_signal_new("clicked",
441 G_OBJECT_CLASS_TYPE(gobject_class),
443 G_STRUCT_OFFSET(PixbufRendererClass, clicked),
445 g_cclosure_marshal_VOID__BOXED,
449 signals[SIGNAL_SCROLL_NOTIFY] =
450 g_signal_new("scroll-notify",
451 G_OBJECT_CLASS_TYPE(gobject_class),
453 G_STRUCT_OFFSET(PixbufRendererClass, scroll_notify),
455 g_cclosure_marshal_VOID__VOID,
458 signals[SIGNAL_RENDER_COMPLETE] =
459 g_signal_new("render-complete",
460 G_OBJECT_CLASS_TYPE(gobject_class),
462 G_STRUCT_OFFSET(PixbufRendererClass, render_complete),
464 g_cclosure_marshal_VOID__VOID,
467 signals[SIGNAL_DRAG] =
469 G_OBJECT_CLASS_TYPE(gobject_class),
471 G_STRUCT_OFFSET(PixbufRendererClass, drag),
473 g_cclosure_marshal_VOID__BOXED,
478 static void pixbuf_renderer_init(PixbufRenderer *pr)
482 box = GTK_WIDGET(pr);
484 pr->zoom_min = PR_ZOOM_MIN;
485 pr->zoom_max = PR_ZOOM_MAX;
486 pr->zoom_quality = GDK_INTERP_BILINEAR;
487 pr->zoom_2pass = FALSE;
492 pr->dither_quality = GDK_RGB_DITHER_NORMAL;
494 pr->scroll_reset = PR_SCROLL_RESET_TOPLEFT;
496 pr->draw_idle_id = -1;
498 pr->tile_width = PR_TILE_SIZE;
499 pr->tile_height = PR_TILE_SIZE;
502 pr->tile_cache_size = 0;
504 pr->tile_cache_max = PR_CACHE_SIZE_DEFAULT;
506 pr->scroller_id = -1;
507 pr->scroller_overlay = -1;
509 pr->source_tiles_enabled = FALSE;
510 pr->source_tiles = NULL;
514 gtk_widget_set_double_buffered(box, FALSE);
515 g_signal_connect_after(G_OBJECT(box), "size_allocate",
516 G_CALLBACK(pr_size_cb), pr);
518 pr_signals_connect(pr);
521 static void pixbuf_renderer_finalize(GObject *object)
525 pr = PIXBUF_RENDERER(object);
528 pr_tile_free_all(pr);
530 if (pr->pixbuf) g_object_unref(pr->pixbuf);
531 if (pr->spare_tile) gdk_pixbuf_unref(pr->spare_tile);
533 pr_scroller_timer_set(pr, FALSE);
534 pr_overlay_list_clear(pr);
536 pr_source_tile_free_all(pr);
539 PixbufRenderer *pixbuf_renderer_new(void)
541 return g_object_new(TYPE_PIXBUF_RENDERER, NULL);
544 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
545 const GValue *value, GParamSpec *pspec)
549 pr = PIXBUF_RENDERER(object);
554 pr->zoom_min = g_value_get_double(value);
557 pr->zoom_max = g_value_get_double(value);
559 case PROP_ZOOM_QUALITY:
560 pr->zoom_quality = g_value_get_uint(value);
562 case PROP_ZOOM_2PASS:
563 pr->zoom_2pass = g_value_get_boolean(value);
565 case PROP_ZOOM_EXPAND:
566 pr->zoom_expand = g_value_get_boolean(value);
568 case PROP_DITHER_QUALITY:
569 pr->dither_quality = g_value_get_uint(value);
571 case PROP_SCROLL_RESET:
572 pr->scroll_reset = g_value_get_uint(value);
574 case PROP_DELAY_FLIP:
575 pr->delay_flip = g_value_get_boolean(value);
578 pr->loading = g_value_get_boolean(value);
581 pr->complete = g_value_get_boolean(value);
583 case PROP_CACHE_SIZE_DISPLAY:
584 pr->tile_cache_max = g_value_get_uint(value);
586 case PROP_CACHE_SIZE_TILES:
587 pr->source_tiles_cache_size = g_value_get_uint(value);
589 case PROP_WINDOW_FIT:
590 pr->window_fit = g_value_get_boolean(value);
592 case PROP_WINDOW_LIMIT:
593 pr->window_limit = g_value_get_boolean(value);
595 case PROP_WINDOW_LIMIT_VALUE:
596 pr->window_limit_size = g_value_get_uint(value);
598 case PROP_AUTOFIT_LIMIT:
599 pr->autofit_limit = g_value_get_boolean(value);
601 case PROP_AUTOFIT_LIMIT_VALUE:
602 pr->autofit_limit_size = g_value_get_uint(value);
605 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
610 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
611 GValue *value, GParamSpec *pspec)
615 pr = PIXBUF_RENDERER(object);
620 g_value_set_double(value, pr->zoom_min);
623 g_value_set_double(value, pr->zoom_max);
625 case PROP_ZOOM_QUALITY:
626 g_value_set_uint(value, pr->zoom_quality);
628 case PROP_ZOOM_2PASS:
629 g_value_set_boolean(value, pr->zoom_2pass);
631 case PROP_ZOOM_EXPAND:
632 g_value_set_boolean(value, pr->zoom_expand);
634 case PROP_DITHER_QUALITY:
635 g_value_set_uint(value, pr->dither_quality);
637 case PROP_SCROLL_RESET:
638 g_value_set_uint(value, pr->scroll_reset);
640 case PROP_DELAY_FLIP:
641 g_value_set_boolean(value, pr->delay_flip);
644 g_value_set_boolean(value, pr->loading);
647 g_value_set_boolean(value, pr->complete);
649 case PROP_CACHE_SIZE_DISPLAY:
650 g_value_set_uint(value, pr->tile_cache_max);
652 case PROP_CACHE_SIZE_TILES:
653 g_value_set_uint(value, pr->source_tiles_cache_size);
655 case PROP_WINDOW_FIT:
656 g_value_set_boolean(value, pr->window_fit);
658 case PROP_WINDOW_LIMIT:
659 g_value_set_boolean(value, pr->window_limit);
661 case PROP_WINDOW_LIMIT_VALUE:
662 g_value_set_uint(value, pr->window_limit_size);
664 case PROP_AUTOFIT_LIMIT:
665 g_value_set_boolean(value, pr->autofit_limit);
667 case PROP_AUTOFIT_LIMIT_VALUE:
668 g_value_set_uint(value, pr->autofit_limit_size);
671 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
676 static gint pixbuf_renderer_expose(GtkWidget *widget, GdkEventExpose *event)
678 if (GTK_WIDGET_DRAWABLE(widget))
680 if (!GTK_WIDGET_NO_WINDOW(widget))
682 if (event->window != widget->window)
686 gdk_window_get_position(event->window, &area.x, &area.y);
688 area.x += event->area.x;
689 area.y += event->area.y;
690 area.width = event->area.width;
691 area.height = event->area.height;
692 pixbuf_renderer_paint(PIXBUF_RENDERER(widget), &area);
696 pixbuf_renderer_paint(PIXBUF_RENDERER(widget), &event->area);
705 *-------------------------------------------------------------------
707 *-------------------------------------------------------------------
710 static void widget_set_cursor(GtkWidget *widget, gint icon)
714 if (!widget->window) return;
722 cursor = gdk_cursor_new(icon);
725 gdk_window_set_cursor(widget->window, cursor);
727 if (cursor) gdk_cursor_unref(cursor);
730 static gint pixmap_calc_size(GdkPixmap *pixmap)
734 d = gdk_drawable_get_depth(pixmap);
735 gdk_drawable_get_size(pixmap, &w, &h);
736 return w * h * (d / 8);
739 static gint pr_clip_region(gint x, gint y, gint w, gint h,
740 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
741 gint *rx, gint *ry, gint *rw, gint *rh)
743 if (clip_x + clip_w <= x ||
745 clip_y + clip_h <= y ||
751 *rx = MAX(x, clip_x);
752 *rw = MIN((x + w), (clip_x + clip_w)) - *rx;
754 *ry = MAX(y, clip_y);
755 *rh = MIN((y + h), (clip_y + clip_h)) - *ry;
760 static gint pr_parent_window_sizable(PixbufRenderer *pr)
762 GdkWindowState state;
764 if (!pr->parent_window) return FALSE;
765 if (!pr->window_fit) return FALSE;
766 if (!GTK_WIDGET(pr)->window) return FALSE;
768 if (!pr->parent_window->window) return FALSE;
769 state = gdk_window_get_state(pr->parent_window->window);
770 if (state & GDK_WINDOW_STATE_MAXIMIZED) return FALSE;
775 static gint pr_parent_window_resize(PixbufRenderer *pr, gint w, gint h)
781 if (!pr_parent_window_sizable(pr)) return FALSE;
783 if (pr->window_limit)
785 gint sw = gdk_screen_width() * pr->window_limit_size / 100;
786 gint sh = gdk_screen_height() * pr->window_limit_size / 100;
792 widget = GTK_WIDGET(pr);
793 parent = GTK_WIDGET(pr->parent_window);
795 w += (parent->allocation.width - widget->allocation.width);
796 h += (parent->allocation.height - widget->allocation.height);
798 gdk_drawable_get_size(parent->window, &ww, &wh);
799 if (w == ww && h == wh) return FALSE;
801 gdk_window_resize(parent->window, w, h);
806 void pixbuf_renderer_set_parent(PixbufRenderer *pr, GtkWindow *window)
808 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
809 g_return_if_fail(window == NULL || GTK_IS_WINDOW(window));
811 pr->parent_window = GTK_WIDGET(window);
814 GtkWindow *pixbuf_renderer_get_parent(PixbufRenderer *pr)
816 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
818 return GTK_WINDOW(pr->parent_window);
823 *-------------------------------------------------------------------
825 *-------------------------------------------------------------------
828 static void pr_overlay_get_position(PixbufRenderer *pr, OverlayData *od,
829 gint *x, gint *y, gint *w, gint *h)
833 pw = gdk_pixbuf_get_width(od->pixbuf);
834 ph = gdk_pixbuf_get_height(od->pixbuf);
838 if (od->flags & OVL_RELATIVE)
840 if (px < 0) px = pr->window_width - pw + px;
841 if (py < 0) py = pr->window_height - ph + py;
850 static void pr_overlay_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
856 box = GTK_WIDGET(pr);
858 work = pr->overlay_list;
868 pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
869 if (pr_clip_region(x, y, w, h, px, py, pw, ph, &rx, &ry, &rw, &rh))
871 if (!pr->overlay_buffer)
873 pr->overlay_buffer = gdk_pixmap_new(((GtkWidget *)pr)->window, pr->tile_width, pr->tile_height, -1);
878 gdk_draw_drawable(pr->overlay_buffer, box->style->fg_gc[GTK_WIDGET_STATE(box)],
880 rx - (pr->x_offset + (it->x - pr->x_scroll)),
881 ry - (pr->y_offset + (it->y - pr->y_scroll)),
883 gdk_draw_pixbuf(pr->overlay_buffer,
884 box->style->fg_gc[GTK_WIDGET_STATE(box)],
888 pr->dither_quality, rx, ry);
889 gdk_draw_drawable(od->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
892 rx - px, ry - py, rw, rh);
896 /* no ImageTile means region may be larger than our scratch buffer */
899 for (sx = rx; sx < rx + rw; sx += pr->tile_width)
900 for (sy = ry; sy < ry + rh; sy += pr->tile_height)
904 sw = MIN(rx + rw - sx, pr->tile_width);
905 sh = MIN(ry + rh - sy, pr->tile_height);
907 gdk_draw_rectangle(pr->overlay_buffer,
908 box->style->bg_gc[GTK_WIDGET_STATE(box)], TRUE,
910 gdk_draw_pixbuf(pr->overlay_buffer,
911 box->style->fg_gc[GTK_WIDGET_STATE(box)],
915 pr->dither_quality, sx, sy);
916 gdk_draw_drawable(od->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
919 sx - px, sy - py, sw, sh);
926 static void pr_overlay_queue_draw(PixbufRenderer *pr, OverlayData *od)
930 pr_overlay_get_position(pr, od, &x, &y, &w, &h);
931 pr_queue(pr, pr->x_scroll - pr->x_offset + x,
932 pr->y_scroll - pr->y_offset + y,
934 FALSE, TILE_RENDER_ALL, FALSE, FALSE);
936 pr_border_draw(pr, x, y, w, h);
939 static void pr_overlay_queue_all(PixbufRenderer *pr)
943 work = pr->overlay_list;
946 OverlayData *od = work->data;
949 pr_overlay_queue_draw(pr, od);
953 static void pr_overlay_update_sizes(PixbufRenderer *pr)
957 work = pr->overlay_list;
960 OverlayData *od = work->data;
963 if (!od->window) continue;
965 if (od->flags & OVL_RELATIVE)
969 pr_overlay_get_position(pr, od, &x, &y, &w, &h);
970 gdk_window_move_resize(od->window, x, y, w, h);
975 static OverlayData *pr_overlay_find(PixbufRenderer *pr, gint id)
979 work = pr->overlay_list;
982 OverlayData *od = work->data;
985 if (od->id == id) return od;
991 gint pixbuf_renderer_overlay_add(PixbufRenderer *pr, GdkPixbuf *pixbuf, gint x, gint y,
992 OverlayRendererFlags flags)
997 GdkWindowAttr attributes;
998 gint attributes_mask;
1000 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
1001 g_return_val_if_fail(pixbuf != NULL, -1);
1004 while (pr_overlay_find(pr, id)) id++;
1006 od = g_new0(OverlayData, 1);
1008 od->pixbuf = pixbuf;
1009 g_object_ref(G_OBJECT(od->pixbuf));
1014 pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
1016 attributes.window_type = GDK_WINDOW_CHILD;
1017 attributes.wclass = GDK_INPUT_OUTPUT;
1018 attributes.width = pw;
1019 attributes.height = ph;
1020 attributes.event_mask = GDK_EXPOSURE_MASK;
1021 attributes_mask = 0;
1023 od->window = gdk_window_new(GTK_WIDGET(pr)->window, &attributes, attributes_mask);
1024 gdk_window_set_user_data(od->window, pr);
1025 gdk_window_move(od->window, px, py);
1026 gdk_window_show(od->window);
1028 pr->overlay_list = g_list_append(pr->overlay_list, od);
1030 pr_overlay_queue_draw(pr, od);
1035 static void pr_overlay_free(PixbufRenderer *pr, OverlayData *od)
1037 pr->overlay_list = g_list_remove(pr->overlay_list, od);
1039 if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
1040 if (od->window) gdk_window_destroy(od->window);
1043 if (!pr->overlay_list && pr->overlay_buffer)
1045 g_object_unref(pr->overlay_buffer);
1046 pr->overlay_buffer = NULL;
1050 static void pr_overlay_list_clear(PixbufRenderer *pr)
1052 while (pr->overlay_list)
1056 od = pr->overlay_list->data;
1057 pr_overlay_free(pr, od);
1061 void pixbuf_renderer_overlay_set(PixbufRenderer *pr, gint id, GdkPixbuf *pixbuf, gint x, gint y)
1065 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1067 od = pr_overlay_find(pr, id);
1072 gint px, py, pw, ph;
1074 g_object_ref(G_OBJECT(pixbuf));
1075 g_object_unref(G_OBJECT(od->pixbuf));
1076 od->pixbuf = pixbuf;
1081 pr_overlay_queue_draw(pr, od);
1082 pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
1083 gdk_window_move_resize(od->window, px, py, pw, ph);
1087 pr_overlay_queue_draw(pr, od);
1088 pr_overlay_free(pr, od);
1092 gint pixbuf_renderer_overlay_get(PixbufRenderer *pr, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
1096 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
1098 od = pr_overlay_find(pr, id);
1099 if (!od) return FALSE;
1101 if (pixbuf) *pixbuf = od->pixbuf;
1108 void pixbuf_renderer_overlay_remove(PixbufRenderer *pr, gint id)
1110 pixbuf_renderer_overlay_set(pr, id, NULL, 0, 0);
1114 *-------------------------------------------------------------------
1116 *-------------------------------------------------------------------
1120 static gboolean pr_scroller_update_cb(gpointer data)
1122 PixbufRenderer *pr = data;
1126 /* this was a simple scroll by difference between scroller and mouse position,
1127 * but all this math results in a smoother result and accounts for a dead zone.
1130 if (abs(pr->scroller_xpos - pr->scroller_x) < PR_SCROLLER_DEAD_ZONE)
1136 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1137 x = (pr->scroller_xpos - pr->scroller_x) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1138 x += (x > 0) ? -shift : shift;
1141 if (abs(pr->scroller_ypos - pr->scroller_y) < PR_SCROLLER_DEAD_ZONE)
1147 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1148 y = (pr->scroller_ypos - pr->scroller_y) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1149 y += (y > 0) ? -shift : shift;
1152 if (abs(x) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
1158 xinc = pr->scroller_xinc;
1162 if (xinc < 0) xinc = 0;
1163 if (x < xinc) xinc = x;
1164 if (x > xinc) xinc = MIN(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
1168 if (xinc > 0) xinc = 0;
1169 if (x > xinc) xinc = x;
1170 if (x < xinc) xinc = MAX(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
1174 if (abs(y) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
1180 yinc = pr->scroller_yinc;
1184 if (yinc < 0) yinc = 0;
1185 if (y < yinc) yinc = y;
1186 if (y > yinc) yinc = MIN(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
1190 if (yinc > 0) yinc = 0;
1191 if (y > yinc) yinc = y;
1192 if (y < yinc) yinc = MAX(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
1196 pr->scroller_xinc = xinc;
1197 pr->scroller_yinc = yinc;
1199 xinc = xinc / PR_SCROLLER_UPDATES_PER_SEC;
1200 yinc = yinc / PR_SCROLLER_UPDATES_PER_SEC;
1202 pixbuf_renderer_scroll(pr, xinc, yinc);
1207 static void pr_scroller_timer_set(PixbufRenderer *pr, gint start)
1209 if (pr->scroller_id != -1)
1211 g_source_remove(pr->scroller_id);
1212 pr->scroller_id = -1;
1217 pr->scroller_id = g_timeout_add(1000 / PR_SCROLLER_UPDATES_PER_SEC,
1218 pr_scroller_update_cb, pr);
1222 static void pr_scroller_start(PixbufRenderer *pr, gint x, gint y)
1224 if (pr->scroller_overlay == -1)
1230 pixbuf = pixbuf_inline(PIXBUF_INLINE_SCROLLER);
1232 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 32, 32);
1233 gdk_pixbuf_fill(pixbuf, 0x000000ff);
1235 w = gdk_pixbuf_get_width(pixbuf);
1236 h = gdk_pixbuf_get_height(pixbuf);
1238 pr->scroller_overlay = pixbuf_renderer_overlay_add(pr, pixbuf, x - w / 2, y - h / 2, OVL_NORMAL);
1239 g_object_unref(pixbuf);
1244 pr->scroller_xpos = x;
1245 pr->scroller_ypos = y;
1247 pr_scroller_timer_set(pr, TRUE);
1250 static void pr_scroller_stop(PixbufRenderer *pr)
1252 if (pr->scroller_id == -1) return;
1254 pixbuf_renderer_overlay_remove(pr, pr->scroller_overlay);
1255 pr->scroller_overlay = -1;
1257 pr_scroller_timer_set(pr, FALSE);
1261 *-------------------------------------------------------------------
1263 *-------------------------------------------------------------------
1266 static void pr_border_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
1269 gint rx, ry, rw, rh;
1271 box = GTK_WIDGET(pr);
1273 if (!box->window) return;
1275 if (!pr->pixbuf && !pr->source_tiles_enabled)
1277 if (pr_clip_region(x, y, w, h,
1279 pr->window_width, pr->window_height,
1280 &rx, &ry, &rw, &rh))
1282 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1283 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1288 if (pr->vis_width < pr->window_width)
1290 if (pr->x_offset > 0 &&
1291 pr_clip_region(x, y, w, h,
1293 pr->x_offset, pr->window_height,
1294 &rx, &ry, &rw, &rh))
1296 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1297 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1299 if (pr->window_width - pr->vis_width - pr->x_offset > 0 &&
1300 pr_clip_region(x, y, w, h,
1301 pr->x_offset + pr->vis_width, 0,
1302 pr->window_width - pr->vis_width - pr->x_offset, pr->window_height,
1303 &rx, &ry, &rw, &rh))
1305 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1306 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1309 if (pr->vis_height < pr->window_height)
1311 if (pr->y_offset > 0 &&
1312 pr_clip_region(x, y, w, h,
1314 pr->vis_width, pr->y_offset,
1315 &rx, &ry, &rw, &rh))
1317 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1318 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1320 if (pr->window_height - pr->vis_height - pr->y_offset > 0 &&
1321 pr_clip_region(x, y, w, h,
1322 pr->x_offset, pr->y_offset + pr->vis_height,
1323 pr->vis_width, pr->window_height - pr->vis_height - pr->y_offset,
1324 &rx, &ry, &rw, &rh))
1326 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1327 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1332 static void pr_border_clear(PixbufRenderer *pr)
1334 pr_border_draw(pr, 0, 0, pr->window_width, pr->window_height);
1337 void pixbuf_renderer_set_color(PixbufRenderer *pr, GdkColor *color)
1342 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1344 widget = GTK_WIDGET(pr);
1349 style = gtk_style_copy(gtk_widget_get_style(widget));
1350 slot = &style->bg[GTK_STATE_NORMAL];
1352 slot->red = color->red;
1353 slot->green = color->green;
1354 slot->blue = color->blue;
1357 style = gtk_style_copy(gtk_widget_get_default_style());
1360 gtk_widget_set_style(widget, style);
1362 if (GTK_WIDGET_VISIBLE(widget)) pr_border_clear(pr);
1367 *-------------------------------------------------------------------
1369 *-------------------------------------------------------------------
1372 static void pr_source_tile_free(SourceTile *st)
1376 if (st->pixbuf) g_object_unref(st->pixbuf);
1380 static void pr_source_tile_free_all(PixbufRenderer *pr)
1384 work = pr->source_tiles;
1392 pr_source_tile_free(st);
1395 g_list_free(pr->source_tiles);
1396 pr->source_tiles = NULL;
1399 static void pr_source_tile_unset(PixbufRenderer *pr)
1401 pr_source_tile_free_all(pr);
1402 pr->source_tiles_enabled = FALSE;
1405 static gint pr_source_tile_visible(PixbufRenderer *pr, SourceTile *st)
1407 gint x1, y1, x2, y2;
1409 if (!st) return FALSE;
1411 x1 = (pr->x_scroll / pr->tile_width) * pr->tile_width;
1412 y1 = (pr->y_scroll / pr->tile_height) * pr->tile_height;
1413 x2 = ((pr->x_scroll + pr->vis_width) / pr->tile_width) * pr->tile_width + pr->tile_width;
1414 y2 = ((pr->y_scroll + pr->vis_height) / pr->tile_height) * pr->tile_height + pr->tile_height;
1416 return !((gdouble)st->x * pr->scale > (gdouble)x2 ||
1417 (gdouble)(st->x + pr->source_tile_width) * pr->scale < (gdouble)x1 ||
1418 (gdouble)st->y * pr->scale > (gdouble)y2 ||
1419 (gdouble)(st->y + pr->source_tile_height) * pr->scale < (gdouble)y1);
1422 static SourceTile *pr_source_tile_new(PixbufRenderer *pr, gint x, gint y)
1424 SourceTile *st = NULL;
1427 g_return_val_if_fail(pr->source_tile_width >= 1 && pr->source_tile_height >= 1, NULL);
1429 if (pr->source_tiles_cache_size < 4) pr->source_tiles_cache_size = 4;
1431 count = g_list_length(pr->source_tiles);
1432 if (count >= pr->source_tiles_cache_size)
1436 work = g_list_last(pr->source_tiles);
1437 while (work && count >= pr->source_tiles_cache_size)
1441 needle = work->data;
1444 if (!pr_source_tile_visible(pr, needle))
1446 pr->source_tiles = g_list_remove(pr->source_tiles, needle);
1448 if (pr->func_tile_dispose)
1450 pr->func_tile_dispose(pr, needle->x, needle->y,
1451 pr->source_tile_width, pr->source_tile_height,
1452 needle->pixbuf, pr->func_tile_data);
1461 pr_source_tile_free(needle);
1471 st = g_new0(SourceTile, 1);
1472 st->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8,
1473 pr->source_tile_width, pr->source_tile_height);
1476 st->x = (x / pr->source_tile_width) * pr->source_tile_width;
1477 st->y = (y / pr->source_tile_height) * pr->source_tile_height;
1480 pr->source_tiles = g_list_prepend(pr->source_tiles, st);
1485 static SourceTile *pr_source_tile_request(PixbufRenderer *pr, gint x, gint y)
1489 st = pr_source_tile_new(pr, x, y);
1490 if (!st) return NULL;
1492 if (pr->func_tile_request &&
1493 pr->func_tile_request(pr, st->x, st->y,
1494 pr->source_tile_width, pr->source_tile_height, st->pixbuf, pr->func_tile_data))
1499 pr_tile_invalidate_region(pr, st->x * pr->scale, st->y * pr->scale,
1500 pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
1505 static SourceTile *pr_source_tile_find(PixbufRenderer *pr, gint x, gint y)
1509 work = pr->source_tiles;
1512 SourceTile *st = work->data;
1514 if (x >= st->x && x < st->x + pr->source_tile_width &&
1515 y >= st->y && y < st->y + pr->source_tile_height)
1517 if (work != pr->source_tiles)
1519 pr->source_tiles = g_list_remove_link(pr->source_tiles, work);
1520 pr->source_tiles = g_list_concat(work, pr->source_tiles);
1531 static GList *pr_source_tile_compute_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h, gint request)
1539 if (w > pr->image_width) w = pr->image_width;
1540 if (h > pr->image_height) h = pr->image_height;
1542 sx = (x / pr->source_tile_width) * pr->source_tile_width;
1543 sy = (y / pr->source_tile_height) * pr->source_tile_height;
1545 for (x1 = sx; x1 < x + w; x1+= pr->source_tile_width)
1547 for (y1 = sy; y1 < y + h; y1 += pr->source_tile_height)
1551 st = pr_source_tile_find(pr, x1, y1);
1552 if (!st && request) st = pr_source_tile_request(pr, x1, y1);
1554 if (st) list = g_list_prepend(list, st);
1558 return g_list_reverse(list);
1561 static void pr_source_tile_changed(PixbufRenderer *pr, gint x, gint y, gint width, gint height)
1565 if (width < 1 || height < 1) return;
1567 work = pr->source_tiles;
1571 gint rx, ry, rw, rh;
1576 if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1577 x, y, width, height,
1578 &rx, &ry, &rw, &rh))
1582 pixbuf = gdk_pixbuf_new_subpixbuf(st->pixbuf, rx - st->x, ry - st->y, rw, rh);
1583 if (pr->func_tile_request &&
1584 pr->func_tile_request(pr, rx, ry, rw, rh, pixbuf, pr->func_tile_data))
1586 pr_tile_invalidate_region(pr, rx * pr->scale, ry * pr->scale,
1587 rw * pr->scale, rh * pr->scale);
1589 g_object_unref(pixbuf);
1594 static gint pr_source_tile_render(PixbufRenderer *pr, ImageTile *it,
1595 gint x, gint y, gint w, gint h,
1596 gint new_data, gint fast)
1603 box = GTK_WIDGET(pr);
1605 if (pr->zoom == 1.0 || pr->scale == 1.0)
1607 list = pr_source_tile_compute_region(pr, it->x + x, it->y + y, w, h, TRUE);
1612 gint rx, ry, rw, rh;
1617 if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1618 it->x + x, it->y + y, w, h,
1619 &rx, &ry, &rw, &rh))
1623 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
1624 rx - st->x, ry - st->y, rw, rh);
1626 else /* (pr->zoom == 1.0 || pr->scale == 1.0) */
1628 gdk_draw_pixbuf(it->pixmap,
1629 box->style->fg_gc[GTK_WIDGET_STATE(box)],
1631 rx - st->x, ry - st->y,
1632 rx - it->x, ry - it->y,
1634 pr->dither_quality, rx, ry);
1641 gdouble scale_x, scale_y;
1642 gint sx, sy, sw, sh;
1644 if (pr->image_width == 0 || pr->image_height == 0) return FALSE;
1645 scale_x = (gdouble)pr->width / pr->image_width;
1646 scale_y = (gdouble)pr->height / pr->image_height;
1648 sx = (gdouble)(it->x + x) / scale_x;
1649 sy = (gdouble)(it->y + y) / scale_y;
1650 sw = (gdouble)w / scale_x;
1651 sh = (gdouble)h / scale_y;
1653 if (pr->width < PR_MIN_SCALE_SIZE || pr->height < PR_MIN_SCALE_SIZE) fast = TRUE;
1656 /* draws red over draw region, to check for leaks (regions not filled) */
1657 pixbuf_set_rect_fill(it->pixbuf, x, y, w, h, 255, 0, 0, 255);
1660 list = pr_source_tile_compute_region(pr, sx, sy, sw, sh, TRUE);
1665 gint rx, ry, rw, rh;
1666 gint stx, sty, stw, sth;
1671 stx = floor((gdouble)st->x * scale_x);
1672 sty = floor((gdouble)st->y * scale_y);
1673 stw = ceil((gdouble)(st->x + pr->source_tile_width) * scale_x) - stx;
1674 sth = ceil((gdouble)(st->y + pr->source_tile_height) * scale_y) - sty;
1676 if (pr_clip_region(stx, sty, stw, sth,
1677 it->x + x, it->y + y, w, h,
1678 &rx, &ry, &rw, &rh))
1682 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
1683 rx - st->x, ry - st->y, rw, rh);
1690 /* may need to use unfloored stx,sty values here */
1691 offset_x = (gdouble)(stx - it->x);
1692 offset_y = (gdouble)(sty - it->y);
1694 gdk_pixbuf_scale(st->pixbuf, it->pixbuf, rx - it->x, ry - it->y, rw, rh,
1695 (gdouble) 0.0 + offset_x,
1696 (gdouble) 0.0 + offset_y,
1698 (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality);
1710 void pixbuf_renderer_set_tiles(PixbufRenderer *pr, gint width, gint height,
1711 gint tile_width, gint tile_height, gint cache_size,
1712 PixbufRendererTileRequestFunc func_request,
1713 PixbufRendererTileDisposeFunc func_dispose,
1717 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1718 g_return_if_fail(tile_width >= 32 && tile_width >= 32);
1719 g_return_if_fail(width >= 32 && height > 32);
1720 g_return_if_fail(func_request != NULL);
1722 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1725 pr_source_tile_unset(pr);
1727 if (cache_size < 4) cache_size = 4;
1729 pr->source_tiles_enabled = TRUE;
1730 pr->source_tiles_cache_size = cache_size;
1731 pr->source_tile_width = tile_width;
1732 pr->source_tile_height = tile_height;
1734 pr->image_width = width;
1735 pr->image_height = height;
1737 pr->func_tile_request = func_request;
1738 pr->func_tile_dispose = func_dispose;
1739 pr->func_tile_data = user_data;
1741 pr_zoom_sync(pr, zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
1742 pr_redraw(pr, TRUE);
1745 void pixbuf_renderer_set_tiles_size(PixbufRenderer *pr, gint width, gint height)
1747 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1748 g_return_if_fail(width >= 32 && height > 32);
1750 if (!pr->source_tiles_enabled) return;
1751 if (pr->image_width == width && pr->image_height == height) return;
1753 pr->image_width = width;
1754 pr->image_height = height;
1756 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
1759 gint pixbuf_renderer_get_tiles(PixbufRenderer *pr)
1761 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
1763 return pr->source_tiles_enabled;
1766 static void pr_zoom_adjust_real(PixbufRenderer *pr, gdouble increment,
1767 PrZoomFlags flags, gint x, gint y)
1769 gdouble zoom = pr->zoom;
1771 if (increment == 0.0) return;
1775 if (pr->scale < 1.0)
1777 zoom = 0.0 - 1.0 / pr->scale;
1785 if (increment < 0.0)
1787 if (zoom >= 1.0 && zoom + increment < 1.0)
1789 zoom = zoom + increment - 2.0;
1793 zoom = zoom + increment;
1798 if (zoom <= -1.0 && zoom + increment > -1.0)
1800 zoom = zoom + increment + 2.0;
1804 zoom = zoom + increment;
1808 pr_zoom_sync(pr, zoom, flags, x, y);
1812 *-------------------------------------------------------------------
1814 *-------------------------------------------------------------------
1817 static ImageTile *pr_tile_new(gint x, gint y, gint width, gint height)
1821 it = g_new0(ImageTile, 1);
1828 it->render_done = TILE_RENDER_NONE;
1833 static void pr_tile_free(ImageTile *it)
1837 if (it->pixbuf) gdk_pixbuf_unref(it->pixbuf);
1838 if (it->pixmap) g_object_unref(it->pixmap);
1843 static void pr_tile_free_all(PixbufRenderer *pr)
1858 g_list_free(pr->tiles);
1860 pr->tile_cache_size = 0;
1863 static ImageTile *pr_tile_add(PixbufRenderer *pr, gint x, gint y)
1867 it = pr_tile_new(x, y, pr->tile_width, pr->tile_height);
1869 if (it->x + it->w > pr->width) it->w = pr->width - it->x;
1870 if (it->y + it->h > pr->height) it->h = pr->height - it->y;
1872 pr->tiles = g_list_prepend(pr->tiles, it);
1873 pr->tile_cache_size += it->size;
1878 static void pr_tile_remove(PixbufRenderer *pr, ImageTile *it)
1882 QueueData *qd = it->qd;
1885 pr->draw_queue = g_list_remove(pr->draw_queue, qd);
1891 QueueData *qd = it->qd2;
1894 pr->draw_queue_2pass = g_list_remove(pr->draw_queue_2pass, qd);
1898 pr->tiles = g_list_remove(pr->tiles, it);
1899 pr->tile_cache_size -= it->size;
1904 static void pr_tile_free_space(PixbufRenderer *pr, guint space, ImageTile *it)
1909 work = g_list_last(pr->tiles);
1911 if (pr->source_tiles_enabled && pr->scale < 1.0)
1915 tiles = (pr->vis_width / pr->tile_width + 1) * (pr->vis_height / pr->tile_height + 1);
1916 tile_max = MAX(tiles * pr->tile_width * pr->tile_height * 3,
1917 (gint)((gdouble)pr->tile_cache_max * 1048576.0 * pr->scale));
1921 tile_max = pr->tile_cache_max * 1048576;
1924 while (work && pr->tile_cache_size + space > tile_max)
1928 needle = work->data;
1931 ((!needle->qd && !needle->qd2) || !pr_tile_is_visible(pr, needle))) pr_tile_remove(pr, needle);
1935 static void pr_tile_invalidate_all(PixbufRenderer *pr)
1947 it->render_done = TILE_RENDER_NONE;
1948 it->render_todo = TILE_RENDER_ALL;
1951 it->w = MIN(pr->tile_width, pr->width - it->x);
1952 it->h = MIN(pr->tile_height, pr->height - it->y);
1956 static void pr_tile_invalidate_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
1962 x1 = (gint)floor(x / pr->tile_width) * pr->tile_width;
1963 x2 = (gint)ceil((x + w) / pr->tile_width) * pr->tile_width;
1965 y1 = (gint)floor(y / pr->tile_height) * pr->tile_height;
1966 y2 = (gint)ceil((y + h) / pr->tile_height) * pr->tile_height;
1976 if (it->x < x2 && it->x + it->w > x1 &&
1977 it->y < y2 && it->y + it->h > y1)
1979 it->render_done = TILE_RENDER_NONE;
1980 it->render_todo = TILE_RENDER_ALL;
1985 static ImageTile *pr_tile_get(PixbufRenderer *pr, gint x, gint y, gint only_existing)
1995 if (it->x == x && it->y == y)
1997 pr->tiles = g_list_delete_link(pr->tiles, work);
1998 pr->tiles = g_list_prepend(pr->tiles, it);
2005 if (only_existing) return NULL;
2007 return pr_tile_add(pr, x, y);
2010 static void pr_tile_prepare(PixbufRenderer *pr, ImageTile *it)
2017 pixmap = gdk_pixmap_new(((GtkWidget *)pr)->window, pr->tile_width, pr->tile_height, -1);
2019 size = pixmap_calc_size(pixmap);
2020 pr_tile_free_space(pr, size, it);
2022 it->pixmap = pixmap;
2024 pr->tile_cache_size += size;
2027 if ((pr->zoom != 1.0 || pr->source_tiles_enabled || (pr->pixbuf && gdk_pixbuf_get_has_alpha(pr->pixbuf)) ||
2028 pr->orientation != EXIF_ORIENTATION_TOP_LEFT || pr->func_post_process) && !it->pixbuf)
2033 /* I don't think that we need a pixbuf with alpha channel here */
2036 pixbuf = gdk_pixbuf_new(gdk_pixbuf_get_colorspace(pr->pixbuf),
2037 gdk_pixbuf_get_has_alpha(pr->pixbuf),
2038 gdk_pixbuf_get_bits_per_sample(pr->pixbuf),
2039 pr->tile_width, pr->tile_height);
2044 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, pr->tile_width, pr->tile_height);
2047 size = gdk_pixbuf_get_rowstride(pixbuf) * pr->tile_height;
2048 pr_tile_free_space(pr, size, it);
2050 it->pixbuf = pixbuf;
2052 pr->tile_cache_size += size;
2057 *-------------------------------------------------------------------
2059 *-------------------------------------------------------------------
2063 static void pr_tile_coords_map_orientation(PixbufRenderer *pr,
2064 gdouble tile_x, gdouble tile_y, /* coordinates of the tile */
2065 gint image_w, gint image_h,
2066 gdouble tile_w, gdouble tile_h,
2067 gdouble *res_x, gdouble *res_y)
2071 switch (pr->orientation)
2073 case EXIF_ORIENTATION_TOP_LEFT:
2074 /* normal -- nothing to do */
2076 case EXIF_ORIENTATION_TOP_RIGHT:
2078 *res_x = image_w - tile_x - tile_w;
2080 case EXIF_ORIENTATION_BOTTOM_RIGHT:
2082 *res_x = image_w - tile_x - tile_w;
2083 *res_y = image_h - tile_y - tile_h;
2085 case EXIF_ORIENTATION_BOTTOM_LEFT:
2087 *res_y = image_h - tile_y - tile_h;
2089 case EXIF_ORIENTATION_LEFT_TOP:
2093 case EXIF_ORIENTATION_RIGHT_TOP:
2094 /* rotated -90 (270) */
2096 *res_y = image_w - tile_x - tile_w;
2098 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2099 *res_x = image_h - tile_y - tile_h;
2100 *res_y = image_w - tile_x - tile_w;
2102 case EXIF_ORIENTATION_LEFT_BOTTOM:
2104 *res_x = image_h - tile_y - tile_h;
2108 /* The other values are out of range */
2111 // log_printf("tile coord y:%f, ih:%d, th:%f ry:%f\n", tile_y, image_h, tile_h, *res_x);
2114 static void pr_tile_region_map_orientation(PixbufRenderer *pr,
2115 gint area_x, gint area_y, /* coordinates of the area inside tile */
2116 gint tile_w, gint tile_h,
2117 gint area_w, gint area_h,
2118 gint *res_x, gint *res_y,
2119 gint *res_w, gint *res_h)
2126 switch (pr->orientation)
2128 case EXIF_ORIENTATION_TOP_LEFT:
2129 /* normal -- nothing to do */
2131 case EXIF_ORIENTATION_TOP_RIGHT:
2133 *res_x = tile_w - area_x - area_w;
2135 case EXIF_ORIENTATION_BOTTOM_RIGHT:
2137 *res_x = tile_w - area_x - area_w;
2138 *res_y = tile_h - area_y - area_h;
2140 case EXIF_ORIENTATION_BOTTOM_LEFT:
2142 *res_y = tile_h - area_y - area_h;
2144 case EXIF_ORIENTATION_LEFT_TOP:
2150 case EXIF_ORIENTATION_RIGHT_TOP:
2151 /* rotated -90 (270) */
2153 *res_y = tile_w - area_x - area_w;
2157 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2158 *res_x = tile_h - area_y - area_h;
2159 *res_y = tile_w - area_x - area_w;
2163 case EXIF_ORIENTATION_LEFT_BOTTOM:
2165 *res_x = tile_h - area_y - area_h;
2171 /* The other values are out of range */
2174 // log_printf("inside y:%d, th:%d, ah:%d ry:%d\n", area_y, tile_h, area_h, *res_x);
2177 static void pr_coords_map_orientation_reverse(PixbufRenderer *pr,
2178 gint area_x, gint area_y,
2179 gint tile_w, gint tile_h,
2180 gint area_w, gint area_h,
2181 gint *res_x, gint *res_y,
2182 gint *res_w, gint *res_h)
2189 switch (pr->orientation)
2191 case EXIF_ORIENTATION_TOP_LEFT:
2192 /* normal -- nothing to do */
2194 case EXIF_ORIENTATION_TOP_RIGHT:
2196 *res_x = tile_w - area_x - area_w;
2198 case EXIF_ORIENTATION_BOTTOM_RIGHT:
2200 *res_x = tile_w - area_x - area_w;
2201 *res_y = tile_h - area_y - area_h;
2203 case EXIF_ORIENTATION_BOTTOM_LEFT:
2205 *res_y = tile_h - area_y - area_h;
2207 case EXIF_ORIENTATION_LEFT_TOP:
2213 case EXIF_ORIENTATION_RIGHT_TOP:
2214 /* rotated -90 (270) */
2215 *res_x = tile_w - area_y - area_h;
2220 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2221 *res_x = tile_w - area_y - area_h;
2222 *res_y = tile_h - area_x - area_w;
2226 case EXIF_ORIENTATION_LEFT_BOTTOM:
2229 *res_y = tile_h - area_x - area_w;
2234 /* The other values are out of range */
2240 static GdkPixbuf *pr_get_spare_tile(PixbufRenderer *pr)
2242 if (!pr->spare_tile) pr->spare_tile = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, pr->tile_width, pr->tile_height);
2243 return pr->spare_tile;
2246 #define COLOR_BYTES 3 /* rgb */
2248 static void pr_tile_rotate_90_clockwise(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2250 GdkPixbuf *src = *tile;
2253 guchar *s_pix, *d_pix;
2255 guchar *ip, *spi, *dpi;
2257 gint tw = pr->tile_width;
2259 srs = gdk_pixbuf_get_rowstride(src);
2260 s_pix = gdk_pixbuf_get_pixels(src);
2261 spi = s_pix + (x * COLOR_BYTES);
2263 dest = pr_get_spare_tile(pr);
2264 drs = gdk_pixbuf_get_rowstride(dest);
2265 d_pix = gdk_pixbuf_get_pixels(dest);
2266 dpi = d_pix + (tw - 1) * COLOR_BYTES;
2268 for (i = y; i < y + h; i++)
2270 sp = spi + (i * srs);
2271 ip = dpi - (i * COLOR_BYTES);
2272 for (j = x; j < x + w; j++)
2274 dp = ip + (j * drs);
2275 memcpy(dp, sp, COLOR_BYTES);
2280 pr->spare_tile = src;
2284 static void pr_tile_rotate_90_counter_clockwise(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2286 GdkPixbuf *src = *tile;
2289 guchar *s_pix, *d_pix;
2291 guchar *ip, *spi, *dpi;
2293 gint th = pr->tile_height;
2295 srs = gdk_pixbuf_get_rowstride(src);
2296 s_pix = gdk_pixbuf_get_pixels(src);
2297 spi = s_pix + (x * COLOR_BYTES);
2299 dest = pr_get_spare_tile(pr);
2300 drs = gdk_pixbuf_get_rowstride(dest);
2301 d_pix = gdk_pixbuf_get_pixels(dest);
2302 dpi = d_pix + (th - 1) * drs;
2304 for (i = y; i < y + h; i++)
2306 sp = spi + (i * srs);
2307 ip = dpi + (i * COLOR_BYTES);
2308 for (j = x; j < x + w; j++)
2310 dp = ip - (j * drs);
2311 memcpy(dp, sp, COLOR_BYTES);
2316 pr->spare_tile = src;
2320 static void pr_tile_mirror_only(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2322 GdkPixbuf *src = *tile;
2325 guchar *s_pix, *d_pix;
2330 gint tw = pr->tile_width;
2332 srs = gdk_pixbuf_get_rowstride(src);
2333 s_pix = gdk_pixbuf_get_pixels(src);
2334 spi = s_pix + (x * COLOR_BYTES);
2336 dest = pr_get_spare_tile(pr);
2337 drs = gdk_pixbuf_get_rowstride(dest);
2338 d_pix = gdk_pixbuf_get_pixels(dest);
2339 dpi = d_pix + (tw - x - 1) * COLOR_BYTES;
2341 for (i = y; i < y + h; i++)
2343 sp = spi + (i * srs);
2344 dp = dpi + (i * drs);
2345 for (j = 0; j < w; j++)
2347 memcpy(dp, sp, COLOR_BYTES);
2353 pr->spare_tile = src;
2357 static void pr_tile_mirror_and_flip(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2359 GdkPixbuf *src = *tile;
2362 guchar *s_pix, *d_pix;
2366 gint tw = pr->tile_width;
2367 gint th = pr->tile_height;
2369 srs = gdk_pixbuf_get_rowstride(src);
2370 s_pix = gdk_pixbuf_get_pixels(src);
2371 spi = s_pix + (x * COLOR_BYTES);
2373 dest = pr_get_spare_tile(pr);
2374 drs = gdk_pixbuf_get_rowstride(dest);
2375 d_pix = gdk_pixbuf_get_pixels(dest);
2376 dpi = d_pix + (th - 1) * drs + (tw - 1) * COLOR_BYTES;
2378 for (i = y; i < y + h; i++)
2380 sp = s_pix + (i * srs) + (x * COLOR_BYTES);
2381 dp = dpi - (i * drs) - (x * COLOR_BYTES);
2382 for (j = 0; j < w; j++)
2384 memcpy(dp, sp, COLOR_BYTES);
2390 pr->spare_tile = src;
2394 static void pr_tile_flip_only(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2396 GdkPixbuf *src = *tile;
2399 guchar *s_pix, *d_pix;
2403 gint th = pr->tile_height;
2405 srs = gdk_pixbuf_get_rowstride(src);
2406 s_pix = gdk_pixbuf_get_pixels(src);
2407 spi = s_pix + (x * COLOR_BYTES);
2409 dest = pr_get_spare_tile(pr);
2410 drs = gdk_pixbuf_get_rowstride(dest);
2411 d_pix = gdk_pixbuf_get_pixels(dest);
2412 dpi = d_pix + (th - 1) * drs + (x * COLOR_BYTES);
2414 for (i = y; i < y + h; i++)
2416 sp = spi + (i * srs);
2417 dp = dpi - (i * drs);
2418 memcpy(dp, sp, w * COLOR_BYTES);
2421 pr->spare_tile = src;
2425 static void pr_tile_apply_orientation(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h)
2427 switch (pr->orientation)
2429 case EXIF_ORIENTATION_TOP_LEFT:
2430 /* normal -- nothing to do */
2432 case EXIF_ORIENTATION_TOP_RIGHT:
2435 pr_tile_mirror_only(pr, pixbuf, x, y, w, h);
2438 case EXIF_ORIENTATION_BOTTOM_RIGHT:
2441 pr_tile_mirror_and_flip(pr, pixbuf, x, y, w, h);
2444 case EXIF_ORIENTATION_BOTTOM_LEFT:
2447 pr_tile_flip_only(pr, pixbuf, x, y, w, h);
2450 case EXIF_ORIENTATION_LEFT_TOP:
2452 pr_tile_flip_only(pr, pixbuf, x, y, w, h);
2453 pr_tile_rotate_90_clockwise(pr, pixbuf, x, pr->tile_height - y - h, w, h);
2456 case EXIF_ORIENTATION_RIGHT_TOP:
2457 /* rotated -90 (270) */
2459 pr_tile_rotate_90_clockwise(pr, pixbuf, x, y, w, h);
2462 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2464 pr_tile_flip_only(pr, pixbuf, x, y, w, h);
2465 pr_tile_rotate_90_counter_clockwise(pr, pixbuf, x, pr->tile_height - y - h, w, h);
2468 case EXIF_ORIENTATION_LEFT_BOTTOM:
2471 pr_tile_rotate_90_counter_clockwise(pr, pixbuf, x, y, w, h);
2475 /* The other values are out of range */
2481 static void pr_tile_render(PixbufRenderer *pr, ImageTile *it,
2482 gint x, gint y, gint w, gint h,
2483 gint new_data, gint fast)
2489 if (it->render_todo == TILE_RENDER_NONE && it->pixmap && !new_data) return;
2491 if (it->render_done != TILE_RENDER_ALL)
2497 if (!fast) it->render_done = TILE_RENDER_ALL;
2499 else if (it->render_todo != TILE_RENDER_AREA)
2501 if (!fast) it->render_todo = TILE_RENDER_NONE;
2505 if (!fast) it->render_todo = TILE_RENDER_NONE;
2507 if (new_data) it->blank = FALSE;
2509 pr_tile_prepare(pr, it);
2510 has_alpha = (pr->pixbuf && gdk_pixbuf_get_has_alpha(pr->pixbuf));
2512 box = GTK_WIDGET(pr);
2514 /* FIXME checker colors for alpha should be configurable,
2515 * also should be drawn for blank = TRUE
2520 /* no data, do fast rect fill */
2521 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
2522 0, 0, it->w, it->h);
2524 else if (pr->source_tiles_enabled)
2526 draw = pr_source_tile_render(pr, it, x, y, w, h, new_data, fast);
2528 else if (pr->zoom == 1.0 || pr->scale == 1.0)
2531 gdouble src_x, src_y;
2534 pr_tile_coords_map_orientation(pr, it->x, it->y,
2535 pr->image_width, pr->image_height,
2536 pr->tile_width, pr->tile_height,
2538 pr_tile_region_map_orientation(pr, x, y,
2539 pr->tile_width, pr->tile_height,
2546 gdk_pixbuf_composite_color(pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
2547 (gdouble) 0.0 - src_x,
2548 (gdouble) 0.0 - src_y,
2549 1.0, 1.0, GDK_INTERP_NEAREST,
2550 255, it->x + pb_x, it->y + pb_y,
2551 PR_ALPHA_CHECK_SIZE, PR_ALPHA_CHECK1, PR_ALPHA_CHECK2);
2552 pr_tile_apply_orientation(pr, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
2559 if (pr->orientation == EXIF_ORIENTATION_TOP_LEFT && !(pr->func_post_process && !(pr->post_process_slow && fast)))
2561 /* faster, simple, base orientation, no postprocessing */
2562 gdk_draw_pixbuf(it->pixmap,
2563 box->style->fg_gc[GTK_WIDGET_STATE(box)],
2565 it->x + x, it->y + y,
2568 pr->dither_quality, it->x + x, it->y + y);
2572 gdk_pixbuf_copy_area(pr->pixbuf,
2573 src_x + pb_x, src_y + pb_y,
2577 pr_tile_apply_orientation(pr, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
2584 gdouble scale_x, scale_y;
2585 gdouble src_x, src_y;
2589 if (pr->image_width == 0 || pr->image_height == 0) return;
2591 scale_x = (gdouble)pr->width / pr->image_width;
2592 scale_y = (gdouble)pr->height / pr->image_height;
2594 pr_tile_coords_map_orientation(pr, it->x / scale_x, it->y /scale_y ,
2595 pr->image_width, pr->image_height,
2596 pr->tile_width / scale_x , pr->tile_height / scale_y,
2598 pr_tile_region_map_orientation(pr, x, y,
2599 pr->tile_width, pr->tile_height,
2604 /* HACK: The pixbuf scalers get kinda buggy(crash) with extremely
2605 * small sizes for anything but GDK_INTERP_NEAREST
2607 if (pr->width < PR_MIN_SCALE_SIZE || pr->height < PR_MIN_SCALE_SIZE) fast = TRUE;
2611 gdk_pixbuf_scale(pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
2612 (gdouble) 0.0 - src_x * scale_x,
2613 (gdouble) 0.0 - src_y * scale_y,
2615 (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality);
2619 gdk_pixbuf_composite_color(pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
2620 (gdouble) 0.0 - src_x * scale_x,
2621 (gdouble) 0.0 - src_y * scale_y,
2623 (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality,
2624 255, it->x + pb_x, it->y + pb_y,
2625 PR_ALPHA_CHECK_SIZE, PR_ALPHA_CHECK1, PR_ALPHA_CHECK2);
2627 pr_tile_apply_orientation(pr, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
2631 if (draw && it->pixbuf && !it->blank)
2634 if (pr->func_post_process && !(pr->post_process_slow && fast))
2635 pr->func_post_process(pr, &it->pixbuf, x, y, w, h, pr->post_process_user_data);
2637 gdk_draw_pixbuf(it->pixmap,
2638 box->style->fg_gc[GTK_WIDGET_STATE(box)],
2643 pr->dither_quality, it->x + x, it->y + y);
2647 /* enable this line for debugging the edges of tiles */
2648 gdk_draw_rectangle(it->pixmap, box->style->white_gc,
2649 FALSE, 0, 0, it->w, it->h);
2650 gdk_draw_rectangle(it->pixmap, box->style->white_gc,
2656 static void pr_tile_expose(PixbufRenderer *pr, ImageTile *it,
2657 gint x, gint y, gint w, gint h,
2658 gint new_data, gint fast)
2662 pr_tile_render(pr, it, x, y, w, h, new_data, fast);
2664 box = GTK_WIDGET(pr);
2666 gdk_draw_drawable(box->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
2668 pr->x_offset + (it->x - pr->x_scroll) + x, pr->y_offset + (it->y - pr->y_scroll) + y, w, h);
2670 if (pr->overlay_list)
2672 pr_overlay_draw(pr, pr->x_offset + (it->x - pr->x_scroll) + x,
2673 pr->y_offset + (it->y - pr->y_scroll) + y,
2680 static gint pr_tile_is_visible(PixbufRenderer *pr, ImageTile *it)
2682 return (it->x + it->w >= pr->x_scroll && it->x < pr->x_scroll + pr->vis_width &&
2683 it->y + it->h >= pr->y_scroll && it->y < pr->y_scroll + pr->vis_height);
2687 *-------------------------------------------------------------------
2689 *-------------------------------------------------------------------
2692 static gint pr_get_queued_area(GList *work)
2698 QueueData *qd = work->data;
2699 area += qd->w * qd->h;
2706 static gint pr_queue_schedule_next_draw(PixbufRenderer *pr, gboolean force_set)
2709 gint visible_area = pr->vis_width * pr->vis_height;
2714 DEBUG_2("redraw priority 2pass\n");
2715 pr->draw_idle_id = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE, pr_queue_draw_idle_cb, pr, NULL);
2719 if (visible_area == 0)
2726 percent = 100.0 * pr_get_queued_area(pr->draw_queue) / visible_area;
2731 /* we have enough data for starting intensive redrawing */
2732 DEBUG_2("redraw priority high %f\n", percent);
2733 pr->draw_idle_id = g_idle_add_full(GDK_PRIORITY_REDRAW, pr_queue_draw_idle_cb, pr, NULL);
2737 if (percent < 1.0 || force_set)
2739 /* queue is (almost) empty, wait 50 ms*/
2740 DEBUG_2("redraw priority wait %f\n", percent);
2741 pr->draw_idle_id = g_timeout_add_full(G_PRIORITY_DEFAULT_IDLE, 50, pr_queue_draw_idle_cb, pr, NULL);
2745 /* keep the same priority as before */
2746 DEBUG_2("redraw priority no change %f\n", percent);
2751 static gint pr_queue_draw_idle_cb(gpointer data)
2753 PixbufRenderer *pr = data;
2758 if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
2759 (!pr->draw_queue && !pr->draw_queue_2pass) ||
2760 pr->draw_idle_id == -1)
2762 pr_render_complete_signal(pr);
2764 pr->draw_idle_id = -1;
2770 qd = pr->draw_queue->data;
2771 fast = ((pr->zoom_2pass && pr->zoom_quality != GDK_INTERP_NEAREST && pr->scale != 1.0) || pr->post_process_slow);
2777 /* still loading, wait till done (also drops the higher priority) */
2779 return pr_queue_schedule_next_draw(pr, FALSE);
2782 qd = pr->draw_queue_2pass->data;
2786 if (GTK_WIDGET_REALIZED(pr))
2788 if (pr_tile_is_visible(pr, qd->it))
2790 pr_tile_expose(pr, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
2792 else if (qd->new_data)
2794 /* if new pixel data, and we already have a pixmap, update the tile */
2795 qd->it->blank = FALSE;
2796 if (qd->it->pixmap && qd->it->render_done == TILE_RENDER_ALL)
2798 pr_tile_render(pr, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
2806 pr->draw_queue = g_list_remove(pr->draw_queue, qd);
2811 pr_queue_merge(qd->it->qd2, qd);
2817 pr->draw_queue_2pass = g_list_append(pr->draw_queue_2pass, qd);
2828 pr->draw_queue_2pass = g_list_remove(pr->draw_queue_2pass, qd);
2832 if (!pr->draw_queue && !pr->draw_queue_2pass)
2834 pr_render_complete_signal(pr);
2836 pr->draw_idle_id = -1;
2840 return pr_queue_schedule_next_draw(pr, FALSE);
2843 static void pr_queue_list_free(GList *list)
2863 static void pr_queue_clear(PixbufRenderer *pr)
2865 pr_queue_list_free(pr->draw_queue);
2866 pr->draw_queue = NULL;
2868 pr_queue_list_free(pr->draw_queue_2pass);
2869 pr->draw_queue_2pass = NULL;
2871 if (pr->draw_idle_id != -1) g_source_remove(pr->draw_idle_id);
2872 pr->draw_idle_id = -1;
2875 static void pr_queue_merge(QueueData *parent, QueueData *qd)
2877 if (parent->x + parent->w < qd->x + qd->w)
2879 parent->w += (qd->x + qd->w) - (parent->x + parent->w);
2881 if (parent->x > qd->x)
2883 parent->w += parent->x - qd->x;
2887 if (parent->y + parent->h < qd->y + qd->h)
2889 parent->h += (qd->y + qd->h) - (parent->y + parent->h);
2891 if (parent->y > qd->y)
2893 parent->h += parent->y - qd->y;
2897 parent->new_data |= qd->new_data;
2900 static gint pr_clamp_to_visible(PixbufRenderer *pr, gint *x, gint *y, gint *w, gint *h)
2908 vh = pr->vis_height;
2913 if (*x + *w < vx || *x > vx + vw || *y + *h < vy || *y > vy + vh) return FALSE;
2916 nx = CLAMP(*x, vx, vx + vw);
2917 nw = CLAMP(*w - (nx - *x), 1, vw);
2919 ny = CLAMP(*y, vy, vy + vh);
2920 nh = CLAMP(*h - (ny - *y), 1, vh);
2930 static gint pr_queue_to_tiles(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
2931 gint clamp, ImageTileRenderType render, gint new_data, gint only_existing)
2937 if (clamp && !pr_clamp_to_visible(pr, &x, &y, &w, &h)) return FALSE;
2939 x1 = (gint)floor(x / pr->tile_width) * pr->tile_width;
2940 x2 = (gint)ceil((x + w) / pr->tile_width) * pr->tile_width;
2942 y1 = (gint)floor(y / pr->tile_height) * pr->tile_height;
2943 y2 = (gint)ceil((y + h) / pr->tile_height) * pr->tile_height;
2945 for (j = y1; j <= y2; j += pr->tile_height)
2947 for (i = x1; i <= x2; i += pr->tile_width)
2951 it = pr_tile_get(pr, i, j,
2953 (i + pr->tile_width < pr->x_scroll ||
2954 i > pr->x_scroll + pr->vis_width ||
2955 j + pr->tile_height < pr->y_scroll ||
2956 j > pr->y_scroll + pr->vis_height)));
2961 if ((render == TILE_RENDER_ALL && it->render_done != TILE_RENDER_ALL) ||
2962 (render == TILE_RENDER_AREA && it->render_todo != TILE_RENDER_ALL))
2964 it->render_todo = render;
2967 qd = g_new(QueueData, 1);
2969 qd->new_data = new_data;
2979 qd->w = x + w - i - qd->x;
2980 if (qd->x + qd->w > pr->tile_width) qd->w = pr->tile_width - qd->x;
2990 qd->h = y + h - j - qd->y;
2991 if (qd->y + qd->h > pr->tile_height) qd->h = pr->tile_height - qd->y;
2993 if (qd->w < 1 || qd->h < 1)
2999 pr_queue_merge(it->qd, qd);
3005 pr->draw_queue = g_list_append(pr->draw_queue, qd);
3014 static void pr_queue(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
3015 gint clamp, ImageTileRenderType render, gint new_data, gint only_existing)
3019 nx = CLAMP(x, 0, pr->width - 1);
3020 ny = CLAMP(y, 0, pr->height - 1);
3023 w = CLAMP(w, 0, pr->width - nx);
3024 h = CLAMP(h, 0, pr->height - ny);
3025 if (w < 1 || h < 1) return;
3027 if (pr_queue_to_tiles(pr, nx, ny, w, h, clamp, render, new_data, only_existing) &&
3028 ((!pr->draw_queue && !pr->draw_queue_2pass) || pr->draw_idle_id == -1))
3030 if (pr->draw_idle_id != -1) g_source_remove(pr->draw_idle_id);
3031 pr_queue_schedule_next_draw(pr, TRUE);
3035 static void pr_redraw(PixbufRenderer *pr, gint new_data)
3038 pr_queue(pr, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, new_data, FALSE);
3042 *-------------------------------------------------------------------
3044 *-------------------------------------------------------------------
3047 static void pr_update_signal(PixbufRenderer *pr)
3050 log_printf("FIXME: send updated signal\n");
3052 DEBUG_1("%s pixbuf renderer updated - started drawing %p", get_exec_time(), pr);
3053 pr->debug_updated = TRUE;
3056 static void pr_zoom_signal(PixbufRenderer *pr)
3058 g_signal_emit(pr, signals[SIGNAL_ZOOM], 0, pr->zoom);
3061 static void pr_clicked_signal(PixbufRenderer *pr, GdkEventButton *bevent)
3063 g_signal_emit(pr, signals[SIGNAL_CLICKED], 0, bevent);
3066 static void pr_scroll_notify_signal(PixbufRenderer *pr)
3068 g_signal_emit(pr, signals[SIGNAL_SCROLL_NOTIFY], 0);
3071 static void pr_render_complete_signal(PixbufRenderer *pr)
3075 g_signal_emit(pr, signals[SIGNAL_RENDER_COMPLETE], 0);
3076 g_object_set(G_OBJECT(pr), "complete", TRUE, NULL);
3078 if (pr->debug_updated)
3080 DEBUG_1("%s pixbuf renderer done %p", get_exec_time(), pr);
3081 pr->debug_updated = FALSE;
3085 static void pr_drag_signal(PixbufRenderer *pr, GdkEventButton *bevent)
3087 g_signal_emit(pr, signals[SIGNAL_DRAG], 0, bevent);
3091 *-------------------------------------------------------------------
3093 *-------------------------------------------------------------------
3096 static gint pr_scroll_clamp(PixbufRenderer *pr)
3101 if (pr->zoom == 0.0)
3109 old_xs = pr->x_scroll;
3110 old_ys = pr->y_scroll;
3112 if (pr->x_offset > 0)
3118 pr->x_scroll = CLAMP(pr->x_scroll, 0, pr->width - pr->vis_width);
3121 if (pr->y_offset > 0)
3127 pr->y_scroll = CLAMP(pr->y_scroll, 0, pr->height - pr->vis_height);
3130 return (old_xs != pr->x_scroll || old_ys != pr->y_scroll);
3133 static gint pr_size_clamp(PixbufRenderer *pr)
3135 gint old_vw, old_vh;
3137 old_vw = pr->vis_width;
3138 old_vh = pr->vis_height;
3140 if (pr->width < pr->window_width)
3142 pr->vis_width = pr->width;
3143 pr->x_offset = (pr->window_width - pr->width) / 2;
3147 pr->vis_width = pr->window_width;
3151 if (pr->height < pr->window_height)
3153 pr->vis_height = pr->height;
3154 pr->y_offset = (pr->window_height - pr->height) / 2;
3158 pr->vis_height = pr->window_height;
3162 return (old_vw != pr->vis_width || old_vh != pr->vis_height);
3165 static gint pr_zoom_clamp(PixbufRenderer *pr, gdouble zoom,
3166 PrZoomFlags flags, gboolean *redrawn)
3171 gboolean force = !!(flags & PR_ZOOM_FORCE);
3172 gboolean new = !!(flags & PR_ZOOM_NEW);
3173 gboolean invalidate = !!(flags & PR_ZOOM_INVALIDATE);
3175 zoom = CLAMP(zoom, pr->zoom_min, pr->zoom_max);
3177 if (pr->zoom == zoom && !force) return FALSE;
3179 w = pr->image_width;
3180 h = pr->image_height;
3182 if (zoom == 0.0 && !pr->pixbuf)
3186 else if (zoom == 0.0)
3192 sizeable = (new && pr_parent_window_sizable(pr));
3196 max_w = gdk_screen_width();
3197 max_h = gdk_screen_height();
3199 if (pr->window_limit)
3201 max_w = max_w * pr->window_limit_size / 100;
3202 max_h = max_h * pr->window_limit_size / 100;
3207 max_w = pr->window_width;
3208 max_h = pr->window_height;
3211 if ((pr->zoom_expand && !sizeable) || w > max_w || h > max_h)
3213 if ((gdouble)max_w / w > (gdouble)max_h / h)
3215 scale = (gdouble)max_h / h;
3217 w = w * scale + 0.5;
3218 if (w > max_w) w = max_w;
3222 scale = (gdouble)max_w / w;
3224 h = h * scale + 0.5;
3225 if (h > max_h) h = max_h;
3228 if (pr->autofit_limit)
3230 gdouble factor = (gdouble)pr->autofit_limit_size / 100;
3231 w = w * factor + 0.5;
3232 h = h * factor + 0.5;
3233 scale = scale * factor;
3244 else if (zoom > 0.0) /* zoom orig, in */
3252 scale = 1.0 / (0.0 - zoom);
3257 invalid = (pr->width != w || pr->height != h);
3264 if (invalidate || invalid)
3266 pr_tile_invalidate_all(pr);
3267 pr_redraw(pr, TRUE);
3269 if (redrawn) *redrawn = (invalidate || invalid);
3274 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
3275 PrZoomFlags flags, gint px, gint py)
3278 gint old_cx, old_cy;
3281 gboolean redrawn = FALSE;
3282 gboolean center_point = !!(flags & PR_ZOOM_CENTER);
3283 gboolean force = !!(flags & PR_ZOOM_FORCE);
3284 gboolean new = !!(flags & PR_ZOOM_NEW);
3285 PrZoomFlags clamp_flags = flags;
3287 old_scale = pr->scale;
3290 px = CLAMP(px, 0, pr->width);
3291 py = CLAMP(py, 0, pr->height);
3292 old_cx = pr->x_scroll + (px - pr->x_offset);
3293 old_cy = pr->y_scroll + (py - pr->y_offset);
3298 old_cx = pr->x_scroll + pr->vis_width / 2;
3299 old_cy = pr->y_scroll + pr->vis_height / 2;
3302 if (force) clamp_flags |= PR_ZOOM_INVALIDATE;
3303 if (!pr_zoom_clamp(pr, zoom, clamp_flags, &redrawn)) return;
3305 clamped = pr_size_clamp(pr);
3306 sized = pr_parent_window_resize(pr, pr->width, pr->height);
3310 switch (pr->scroll_reset)
3312 case PR_SCROLL_RESET_NOCHANGE:
3313 /* maintain old scroll position, do nothing */
3315 case PR_SCROLL_RESET_CENTER:
3316 /* center new image */
3317 pr->x_scroll = ((gdouble)pr->image_width / 2.0 * pr->scale) - pr->vis_width / 2;
3318 pr->y_scroll = ((gdouble)pr->image_height / 2.0 * pr->scale) - pr->vis_height / 2;
3320 case PR_SCROLL_RESET_TOPLEFT:
3322 /* reset to upper left */
3330 /* user zoom does not force, so keep visible center point */
3333 pr->x_scroll = old_cx / old_scale * pr->scale - (px - pr->x_offset);
3334 pr->y_scroll = old_cy / old_scale * pr->scale - (py - pr->y_offset);
3338 pr->x_scroll = old_cx / old_scale * pr->scale - (pr->vis_width / 2);
3339 pr->y_scroll = old_cy / old_scale * pr->scale - (pr->vis_height / 2);
3343 pr_scroll_clamp(pr);
3345 /* If the window was not sized, redraw the image - we know there will be no size/expose signal.
3346 * But even if a size is claimed, there is no guarantee that the window manager will allow it,
3347 * so redraw the window anyway :/
3349 if (sized || clamped) pr_border_clear(pr);
3350 pr_redraw(pr, redrawn);
3352 pr_scroll_notify_signal(pr);
3354 pr_update_signal(pr);
3357 static void pr_size_sync(PixbufRenderer *pr, gint new_width, gint new_height)
3359 gint zoom_changed = FALSE;
3361 if (pr->window_width == new_width && pr->window_height == new_height) return;
3363 pr->window_width = new_width;
3364 pr->window_height = new_height;
3366 if (pr->zoom == 0.0)
3368 gdouble old_scale = pr->scale;
3369 pr_zoom_clamp(pr, 0.0, PR_ZOOM_FORCE, NULL);
3370 zoom_changed = (old_scale != pr->scale);
3374 pr_scroll_clamp(pr);
3376 pr_overlay_update_sizes(pr);
3378 /* ensure scroller remains visible */
3379 if (pr->scroller_overlay != -1)
3381 gint update = FALSE;
3383 if (pr->scroller_x > new_width)
3385 pr->scroller_x = new_width;
3386 pr->scroller_xpos = new_width;
3389 if (pr->scroller_y > new_height)
3391 pr->scroller_y = new_height;
3392 pr->scroller_ypos = new_height;
3400 if (pixbuf_renderer_overlay_get(pr, pr->scroller_overlay, &pixbuf, NULL, NULL))
3404 w = gdk_pixbuf_get_width(pixbuf);
3405 h = gdk_pixbuf_get_height(pixbuf);
3406 pixbuf_renderer_overlay_set(pr, pr->scroller_overlay, pixbuf,
3407 pr->scroller_x - w / 2, pr->scroller_y - h / 2);
3412 pr_border_clear(pr);
3414 pr_scroll_notify_signal(pr);
3415 if (zoom_changed) pr_zoom_signal(pr);
3416 pr_update_signal(pr);
3419 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
3421 PixbufRenderer *pr = data;
3423 pr_size_sync(pr, allocation->width, allocation->height);
3426 static void pixbuf_renderer_paint(PixbufRenderer *pr, GdkRectangle *area)
3430 pr_border_draw(pr, area->x, area->y, area->width, area->height);
3432 x = MAX(0, (gint)area->x - pr->x_offset + pr->x_scroll);
3433 y = MAX(0, (gint)area->y - pr->y_offset + pr->y_scroll);
3436 MIN((gint)area->width, pr->width - x),
3437 MIN((gint)area->height, pr->height - y),
3438 FALSE, TILE_RENDER_ALL, FALSE, FALSE);
3442 *-------------------------------------------------------------------
3444 *-------------------------------------------------------------------
3447 void pixbuf_renderer_scroll(PixbufRenderer *pr, gint x, gint y)
3453 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3455 if (!pr->pixbuf && !pr->source_tiles_enabled) return;
3457 old_x = pr->x_scroll;
3458 old_y = pr->y_scroll;
3463 pr_scroll_clamp(pr);
3464 if (pr->x_scroll == old_x && pr->y_scroll == old_y) return;
3466 pr_scroll_notify_signal(pr);
3468 x_off = pr->x_scroll - old_x;
3469 y_off = pr->y_scroll - old_y;
3471 w = pr->vis_width - abs(x_off);
3472 h = pr->vis_height - abs(y_off);
3476 /* scrolled completely to new material */
3477 pr_queue(pr, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
3510 box = GTK_WIDGET(pr);
3512 gc = gdk_gc_new(box->window);
3513 gdk_gc_set_exposures(gc, TRUE);
3514 gdk_draw_drawable(box->window, gc,
3516 x2 + pr->x_offset, y2 + pr->y_offset,
3517 x1 + pr->x_offset, y1 + pr->y_offset, w, h);
3520 if (pr->overlay_list)
3522 pr_overlay_queue_all(pr);
3525 w = pr->vis_width - w;
3526 h = pr->vis_height - h;
3531 x_off > 0 ? pr->x_scroll + (pr->vis_width - w) : pr->x_scroll, pr->y_scroll,
3532 w, pr->vis_height, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
3536 /* FIXME, to optimize this, remove overlap */
3538 pr->x_scroll, y_off > 0 ? pr->y_scroll + (pr->vis_height - h) : pr->y_scroll,
3539 pr->vis_width, h, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
3542 /* process exposures here, "expose_event" seems to miss a few with obstructed windows */
3543 while ((event = gdk_event_get_graphics_expose(box->window)) != NULL)
3545 pixbuf_renderer_paint(pr, &event->expose.area);
3547 if (event->expose.count == 0)
3549 gdk_event_free(event);
3552 gdk_event_free(event);
3557 void pixbuf_renderer_scroll_to_point(PixbufRenderer *pr, gint x, gint y,
3558 gdouble x_align, gdouble y_align)
3563 x_align = CLAMP(x_align, 0.0, 1.0);
3564 y_align = CLAMP(y_align, 0.0, 1.0);
3566 ax = (gdouble)pr->vis_width * x_align;
3567 ay = (gdouble)pr->vis_height * y_align;
3569 px = (gdouble)x * pr->scale - (pr->x_scroll + ax);
3570 py = (gdouble)y * pr->scale - (pr->y_scroll + ay);
3572 pixbuf_renderer_scroll(pr, px, py);
3575 /* get or set coordinates of viewport center in the image, in range 0.0 - 1.0 */
3577 void pixbuf_renderer_get_scroll_center(PixbufRenderer *pr, gdouble *x, gdouble *y)
3581 src_x = pr->x_scroll + pr->vis_width / 2;
3582 src_y = pr->y_scroll + pr->vis_height / 2;
3585 *x = (gdouble)src_x / pr->width;
3587 *x = 0.5; /* center */
3590 *y = (gdouble)src_y / pr->height;
3592 *y = 0.5; /* center */
3595 void pixbuf_renderer_set_scroll_center(PixbufRenderer *pr, gdouble x, gdouble y)
3597 gdouble dst_x, dst_y;
3599 dst_x = x * pr->width - pr->vis_width / 2 - pr->x_scroll + CLAMP(pr->subpixel_x_scroll, -1.0, 1.0);
3600 dst_y = y * pr->height - pr->vis_height / 2 - pr->y_scroll + CLAMP(pr->subpixel_y_scroll, -1.0, 1.0);
3602 pr->subpixel_x_scroll = dst_x - (gint)dst_x;
3603 pr->subpixel_y_scroll = dst_y - (gint)dst_y;
3605 pixbuf_renderer_scroll(pr, (gint)dst_x, (gint)dst_y);
3610 *-------------------------------------------------------------------
3612 *-------------------------------------------------------------------
3615 static gint pr_mouse_motion_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
3620 pr = PIXBUF_RENDERER(widget);
3622 if (pr->scroller_id != -1)
3624 pr->scroller_xpos = bevent->x;
3625 pr->scroller_ypos = bevent->y;
3628 if (!pr->in_drag || !gdk_pointer_is_grabbed()) return FALSE;
3630 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
3636 widget_set_cursor(widget, GDK_FLEUR);
3639 if (bevent->state & GDK_SHIFT_MASK)
3641 accel = PR_PAN_SHIFT_MULTIPLIER;
3649 pixbuf_renderer_scroll(pr, (pr->drag_last_x - bevent->x) * accel,
3650 (pr->drag_last_y - bevent->y) * accel);
3652 pr_drag_signal(pr, bevent);
3654 pr->drag_last_x = bevent->x;
3655 pr->drag_last_y = bevent->y;
3660 static gint pr_mouse_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
3665 pr = PIXBUF_RENDERER(widget);
3667 if (pr->scroller_id != -1) return TRUE;
3669 switch (bevent->button)
3671 case MOUSE_BUTTON_LEFT:
3673 pr->drag_last_x = bevent->x;
3674 pr->drag_last_y = bevent->y;
3676 gdk_pointer_grab(widget->window, FALSE,
3677 GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
3678 NULL, NULL, bevent->time);
3679 gtk_grab_add(widget);
3681 case MOUSE_BUTTON_MIDDLE:
3684 case MOUSE_BUTTON_RIGHT:
3685 pr_clicked_signal(pr, bevent);
3691 parent = gtk_widget_get_parent(widget);
3692 if (widget && GTK_WIDGET_CAN_FOCUS(parent))
3694 gtk_widget_grab_focus(parent);
3700 static gint pr_mouse_release_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
3704 pr = PIXBUF_RENDERER(widget);
3706 if (pr->scroller_id != -1)
3708 pr_scroller_stop(pr);
3712 if (gdk_pointer_is_grabbed() && GTK_WIDGET_HAS_GRAB(pr))
3714 gtk_grab_remove(widget);
3715 gdk_pointer_ungrab(bevent->time);
3716 widget_set_cursor(widget, -1);
3719 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
3721 if (bevent->button == MOUSE_BUTTON_LEFT && (bevent->state & GDK_SHIFT_MASK))
3723 pr_scroller_start(pr, bevent->x, bevent->y);
3725 else if (bevent->button == MOUSE_BUTTON_LEFT || bevent->button == MOUSE_BUTTON_MIDDLE)
3727 pr_clicked_signal(pr, bevent);
3731 pr->in_drag = FALSE;
3736 static gint pr_mouse_leave_cb(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
3740 pr = PIXBUF_RENDERER(widget);
3742 if (pr->scroller_id != -1)
3744 pr->scroller_xpos = pr->scroller_x;
3745 pr->scroller_ypos = pr->scroller_y;
3746 pr->scroller_xinc = 0;
3747 pr->scroller_yinc = 0;
3753 static void pr_mouse_drag_cb(GtkWidget *widget, GdkDragContext *context, gpointer data)
3757 pr = PIXBUF_RENDERER(widget);
3759 pr->drag_moved = PR_DRAG_SCROLL_THRESHHOLD;
3762 static void pr_signals_connect(PixbufRenderer *pr)
3764 g_signal_connect(G_OBJECT(pr), "motion_notify_event",
3765 G_CALLBACK(pr_mouse_motion_cb), pr);
3766 g_signal_connect(G_OBJECT(pr), "button_press_event",
3767 G_CALLBACK(pr_mouse_press_cb), pr);
3768 g_signal_connect(G_OBJECT(pr), "button_release_event",
3769 G_CALLBACK(pr_mouse_release_cb), pr);
3770 g_signal_connect(G_OBJECT(pr), "leave_notify_event",
3771 G_CALLBACK(pr_mouse_leave_cb), pr);
3773 gtk_widget_set_events(GTK_WIDGET(pr), GDK_POINTER_MOTION_MASK |
3774 GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
3775 GDK_LEAVE_NOTIFY_MASK);
3777 g_signal_connect(G_OBJECT(pr), "drag_begin",
3778 G_CALLBACK(pr_mouse_drag_cb), pr);
3783 *-------------------------------------------------------------------
3785 *-------------------------------------------------------------------
3787 static void pr_pixbuf_size_sync(PixbufRenderer *pr)
3789 if (!pr->pixbuf) return;
3790 switch (pr->orientation)
3792 case EXIF_ORIENTATION_LEFT_TOP:
3793 case EXIF_ORIENTATION_RIGHT_TOP:
3794 case EXIF_ORIENTATION_RIGHT_BOTTOM:
3795 case EXIF_ORIENTATION_LEFT_BOTTOM:
3796 pr->image_width = gdk_pixbuf_get_height(pr->pixbuf);
3797 pr->image_height = gdk_pixbuf_get_width(pr->pixbuf);
3800 pr->image_width = gdk_pixbuf_get_width(pr->pixbuf);
3801 pr->image_height = gdk_pixbuf_get_height(pr->pixbuf);
3805 static void pr_pixbuf_sync(PixbufRenderer *pr, gdouble zoom)
3811 /* no pixbuf so just clear the window */
3812 pr->image_width = 0;
3813 pr->image_height = 0;
3816 box = GTK_WIDGET(pr);
3818 if (GTK_WIDGET_REALIZED(box))
3820 gdk_window_clear(box->window);
3821 pr_overlay_draw(pr, 0, 0, pr->window_width, pr->window_height, NULL);
3824 pr_update_signal(pr);
3829 pr_pixbuf_size_sync(pr);
3830 pr_zoom_sync(pr, zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
3833 static void pr_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom)
3835 if (pixbuf) g_object_ref(pixbuf);
3836 if (pr->pixbuf) g_object_unref(pr->pixbuf);
3837 pr->pixbuf = pixbuf;
3839 pr_pixbuf_sync(pr, zoom);
3842 void pixbuf_renderer_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom)
3844 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3846 pr_source_tile_unset(pr);
3848 pr_set_pixbuf(pr, pixbuf, zoom);
3850 pr_update_signal(pr);
3853 GdkPixbuf *pixbuf_renderer_get_pixbuf(PixbufRenderer *pr)
3855 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
3860 void pixbuf_renderer_set_orientation(PixbufRenderer *pr, gint orientation)
3862 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3864 pr->orientation = orientation;
3866 pr_pixbuf_size_sync(pr);
3867 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
3870 gint pixbuf_renderer_get_orientation(PixbufRenderer *pr)
3873 return pr->orientation;
3876 void pixbuf_renderer_set_post_process_func(PixbufRenderer *pr, PixbufRendererPostProcessFunc func, gpointer user_data, gint slow)
3878 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3880 pr->func_post_process = func;
3881 pr->post_process_user_data = user_data;
3882 pr->post_process_slow = func && slow;
3887 void pixbuf_renderer_move(PixbufRenderer *pr, PixbufRenderer *source)
3890 PixbufRendererScrollResetType scroll_reset;
3892 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3893 g_return_if_fail(IS_PIXBUF_RENDERER(source));
3895 if (pr == source) return;
3897 object = G_OBJECT(pr);
3899 g_object_set(object, "zoom_min", source->zoom_min, NULL);
3900 g_object_set(object, "zoom_max", source->zoom_max, NULL);
3901 g_object_set(object, "loading", source->loading, NULL);
3903 pr->complete = source->complete;
3905 pr->x_scroll = source->x_scroll;
3906 pr->y_scroll = source->y_scroll;
3908 scroll_reset = pr->scroll_reset;
3909 pr->scroll_reset = PR_SCROLL_RESET_NOCHANGE;
3911 pr->func_post_process = source->func_post_process;
3912 pr->post_process_user_data = source->post_process_user_data;
3913 pr->post_process_slow = source->post_process_slow;
3914 pr->orientation = source->orientation;
3916 if (source->source_tiles_enabled)
3918 pr_source_tile_unset(pr);
3920 pr->source_tiles_enabled = source->source_tiles_enabled;
3921 pr->source_tiles_cache_size = source->source_tiles_cache_size;
3922 pr->source_tile_width = source->source_tile_width;
3923 pr->source_tile_height = source->source_tile_height;
3924 pr->image_width = source->image_width;
3925 pr->image_height = source->image_height;
3927 pr->func_tile_request = source->func_tile_request;
3928 pr->func_tile_dispose = source->func_tile_dispose;
3929 pr->func_tile_data = source->func_tile_data;
3931 pr->source_tiles = source->source_tiles;
3932 source->source_tiles = NULL;
3934 pr_zoom_sync(pr, source->zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
3935 pr_redraw(pr, TRUE);
3939 pixbuf_renderer_set_pixbuf(pr, source->pixbuf, source->zoom);
3942 pr->scroll_reset = scroll_reset;
3944 pixbuf_renderer_set_pixbuf(source, NULL, source->zoom);
3945 pr_queue_clear(source);
3946 pr_tile_free_all(source);
3949 void pixbuf_renderer_area_changed(PixbufRenderer *pr, gint src_x, gint src_y, gint src_w, gint src_h)
3951 gint x, y, width, height, x1, y1, x2, y2;
3953 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3955 pr_coords_map_orientation_reverse(pr,
3957 pr->image_width, pr->image_height,
3962 if (pr->source_tiles_enabled)
3964 pr_source_tile_changed(pr, x, y, width, height);
3967 if (pr->scale != 1.0 && pr->zoom_quality != GDK_INTERP_NEAREST)
3969 /* increase region when using a zoom quality that may access surrounding pixels */
3974 x1 = (gint)floor((gdouble)x * pr->scale);
3975 y1 = (gint)floor((gdouble)y * pr->scale);
3976 x2 = (gint)ceil((gdouble)(x + width) * pr->scale);
3977 y2 = (gint)ceil((gdouble)(y + height) * pr->scale);
3979 pr_queue(pr, x1, y1, x2 - x1, y2 - y1, FALSE, TILE_RENDER_AREA, TRUE, TRUE);
3982 void pixbuf_renderer_zoom_adjust(PixbufRenderer *pr, gdouble increment)
3984 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3986 pr_zoom_adjust_real(pr, increment, PR_ZOOM_NONE, 0, 0);
3989 void pixbuf_renderer_zoom_adjust_at_point(PixbufRenderer *pr, gdouble increment, gint x, gint y)
3991 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3993 pr_zoom_adjust_real(pr, increment, PR_ZOOM_CENTER, x, y);
3996 void pixbuf_renderer_zoom_set(PixbufRenderer *pr, gdouble zoom)
3998 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
4000 pr_zoom_sync(pr, zoom, PR_ZOOM_NONE, 0, 0);
4003 gdouble pixbuf_renderer_zoom_get(PixbufRenderer *pr)
4005 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
4010 gdouble pixbuf_renderer_zoom_get_scale(PixbufRenderer *pr)
4012 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
4017 void pixbuf_renderer_zoom_set_limits(PixbufRenderer *pr, gdouble min, gdouble max)
4019 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
4021 if (min > 1.0 || max < 1.0) return;
4022 if (min < 1.0 && min > -1.0) return;
4023 if (min < -200.0 || max > 200.0) return;
4025 if (pr->zoom_min != min)
4028 g_object_notify(G_OBJECT(pr), "zoom_min");
4030 if (pr->zoom_max != max)
4033 g_object_notify(G_OBJECT(pr), "zoom_max");
4037 gint pixbuf_renderer_get_image_size(PixbufRenderer *pr, gint *width, gint *height)
4039 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
4040 g_return_val_if_fail(width != NULL && height != NULL, FALSE);
4042 if (!pr->pixbuf && !pr->source_tiles_enabled)
4049 *width = pr->image_width;
4050 *height = pr->image_height;
4054 gint pixbuf_renderer_get_scaled_size(PixbufRenderer *pr, gint *width, gint *height)
4056 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
4057 g_return_val_if_fail(width != NULL && height != NULL, FALSE);
4059 if (!pr->pixbuf && !pr->source_tiles_enabled)
4067 *height = pr->height;
4071 gint pixbuf_renderer_get_visible_rect(PixbufRenderer *pr, GdkRectangle *rect)
4073 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
4074 g_return_val_if_fail(rect != NULL, FALSE);
4076 if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
4086 rect->x = (gint)((gdouble)pr->x_scroll / pr->scale);
4087 rect->y = (gint)((gdouble)pr->y_scroll / pr->scale);
4088 rect->width = (gint)((gdouble)pr->vis_width / pr->scale);
4089 rect->height = (gint)((gdouble)pr->vis_height / pr->scale);
4093 gint pixbuf_renderer_get_virtual_rect(PixbufRenderer *pr, GdkRectangle *rect)
4095 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
4096 g_return_val_if_fail(rect != NULL, FALSE);
4098 if ((!pr->pixbuf && !pr->source_tiles_enabled))
4107 rect->x = pr->x_scroll;
4108 rect->y = pr->y_scroll;
4109 rect->width = pr->vis_width;
4110 rect->height = pr->vis_height;