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,
184 PR_ZOOM_LAZY = 1 << 4 /* wait with redraw for pixbuf_renderer_area_changed */
187 static guint signals[SIGNAL_COUNT] = { 0 };
188 static GtkEventBoxClass *parent_class = NULL;
192 static void pixbuf_renderer_class_init(PixbufRendererClass *class);
193 static void pixbuf_renderer_init(PixbufRenderer *pr);
194 static void pixbuf_renderer_finalize(GObject *object);
195 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
196 const GValue *value, GParamSpec *pspec);
197 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
198 GValue *value, GParamSpec *pspec);
199 static gint pixbuf_renderer_expose(GtkWidget *widget, GdkEventExpose *event);
201 static void pr_render_complete_signal(PixbufRenderer *pr);
203 static void pr_overlay_list_clear(PixbufRenderer *pr);
204 static void pr_scroller_timer_set(PixbufRenderer *pr, gint start);
205 static void pr_border_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h);
208 static void pr_source_tile_free_all(PixbufRenderer *pr);
209 static void pr_tile_free_all(PixbufRenderer *pr);
210 static void pr_tile_invalidate_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h);
211 static gint pr_tile_is_visible(PixbufRenderer *pr, ImageTile *it);
212 static void pr_queue_clear(PixbufRenderer *pr);
213 static void pr_queue_merge(QueueData *parent, QueueData *qd);
214 static void pr_queue(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
215 gint clamp, ImageTileRenderType render, gint new_data, gint only_existing);
217 static void pr_redraw(PixbufRenderer *pr, gint new_data);
219 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
220 PrZoomFlags flags, gint px, gint py);
222 static void pr_signals_connect(PixbufRenderer *pr);
223 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data);
224 static void pixbuf_renderer_paint(PixbufRenderer *pr, GdkRectangle *area);
225 static gint pr_queue_draw_idle_cb(gpointer data);
229 *-------------------------------------------------------------------
230 * Pixbuf Renderer object
231 *-------------------------------------------------------------------
234 GType pixbuf_renderer_get_type(void)
236 static GType pixbuf_renderer_type = 0;
238 if (!pixbuf_renderer_type)
240 static const GTypeInfo pixbuf_renderer_info =
242 sizeof(PixbufRendererClass), /* class_size */
243 NULL, /* base_init */
244 NULL, /* base_finalize */
245 (GClassInitFunc)pixbuf_renderer_class_init,
246 NULL, /* class_finalize */
247 NULL, /* class_data */
248 sizeof(PixbufRenderer), /* instance_size */
250 (GInstanceInitFunc)pixbuf_renderer_init, /* instance_init */
251 NULL, /* value_table */
254 pixbuf_renderer_type = g_type_register_static(GTK_TYPE_EVENT_BOX, "PixbufRenderer",
255 &pixbuf_renderer_info, 0);
258 return pixbuf_renderer_type;
261 static void pixbuf_renderer_class_init(PixbufRendererClass *class)
263 GObjectClass *gobject_class = G_OBJECT_CLASS(class);
264 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(class);
266 parent_class = g_type_class_peek_parent(class);
268 gobject_class->set_property = pixbuf_renderer_set_property;
269 gobject_class->get_property = pixbuf_renderer_get_property;
271 gobject_class->finalize = pixbuf_renderer_finalize;
273 widget_class->expose_event = pixbuf_renderer_expose;
275 g_object_class_install_property(gobject_class,
277 g_param_spec_double("zoom_min",
283 G_PARAM_READABLE | G_PARAM_WRITABLE));
285 g_object_class_install_property(gobject_class,
287 g_param_spec_double("zoom_max",
293 G_PARAM_READABLE | G_PARAM_WRITABLE));
295 g_object_class_install_property(gobject_class,
297 g_param_spec_uint("zoom_quality",
303 G_PARAM_READABLE | G_PARAM_WRITABLE));
305 g_object_class_install_property(gobject_class,
307 g_param_spec_boolean("zoom_2pass",
311 G_PARAM_READABLE | G_PARAM_WRITABLE));
313 g_object_class_install_property(gobject_class,
315 g_param_spec_boolean("zoom_expand",
316 "Expand image in autozoom.",
319 G_PARAM_READABLE | G_PARAM_WRITABLE));
321 g_object_class_install_property(gobject_class,
323 g_param_spec_uint("dither_quality",
328 GDK_RGB_DITHER_NORMAL,
329 G_PARAM_READABLE | G_PARAM_WRITABLE));
331 g_object_class_install_property(gobject_class,
333 g_param_spec_uint("scroll_reset",
334 "New image scroll reset",
336 PR_SCROLL_RESET_TOPLEFT,
337 PR_SCROLL_RESET_NOCHANGE,
338 PR_SCROLL_RESET_TOPLEFT,
339 G_PARAM_READABLE | G_PARAM_WRITABLE));
341 g_object_class_install_property(gobject_class,
343 g_param_spec_boolean("delay_flip",
344 "Delay image update",
347 G_PARAM_READABLE | G_PARAM_WRITABLE));
349 g_object_class_install_property(gobject_class,
351 g_param_spec_boolean("loading",
352 "Image actively loading",
355 G_PARAM_READABLE | G_PARAM_WRITABLE));
357 g_object_class_install_property(gobject_class,
359 g_param_spec_boolean("complete",
360 "Image rendering complete",
363 G_PARAM_READABLE | G_PARAM_WRITABLE));
365 g_object_class_install_property(gobject_class,
366 PROP_CACHE_SIZE_DISPLAY,
367 g_param_spec_uint("cache_display",
368 "Display cache size MB",
372 PR_CACHE_SIZE_DEFAULT,
373 G_PARAM_READABLE | G_PARAM_WRITABLE));
375 g_object_class_install_property(gobject_class,
376 PROP_CACHE_SIZE_TILES,
377 g_param_spec_uint("cache_tiles",
379 "Number of tiles to retain in memory at any one time.",
382 PR_CACHE_SIZE_DEFAULT,
383 G_PARAM_READABLE | G_PARAM_WRITABLE));
385 g_object_class_install_property(gobject_class,
387 g_param_spec_boolean("window_fit",
388 "Fit window to image size",
391 G_PARAM_READABLE | G_PARAM_WRITABLE));
393 g_object_class_install_property(gobject_class,
395 g_param_spec_boolean("window_limit",
396 "Limit size of parent window",
399 G_PARAM_READABLE | G_PARAM_WRITABLE));
401 g_object_class_install_property(gobject_class,
402 PROP_WINDOW_LIMIT_VALUE,
403 g_param_spec_uint("window_limit_value",
404 "Size limit of parent window",
409 G_PARAM_READABLE | G_PARAM_WRITABLE));
411 g_object_class_install_property(gobject_class,
413 g_param_spec_boolean("autofit_limit",
414 "Limit size of image when autofitting",
417 G_PARAM_READABLE | G_PARAM_WRITABLE));
419 g_object_class_install_property(gobject_class,
420 PROP_AUTOFIT_LIMIT_VALUE,
421 g_param_spec_uint("autofit_limit_value",
422 "Size limit of image when autofitting",
427 G_PARAM_READABLE | G_PARAM_WRITABLE));
430 signals[SIGNAL_ZOOM] =
432 G_OBJECT_CLASS_TYPE(gobject_class),
434 G_STRUCT_OFFSET(PixbufRendererClass, zoom),
436 g_cclosure_marshal_VOID__DOUBLE,
440 signals[SIGNAL_CLICKED] =
441 g_signal_new("clicked",
442 G_OBJECT_CLASS_TYPE(gobject_class),
444 G_STRUCT_OFFSET(PixbufRendererClass, clicked),
446 g_cclosure_marshal_VOID__BOXED,
450 signals[SIGNAL_SCROLL_NOTIFY] =
451 g_signal_new("scroll-notify",
452 G_OBJECT_CLASS_TYPE(gobject_class),
454 G_STRUCT_OFFSET(PixbufRendererClass, scroll_notify),
456 g_cclosure_marshal_VOID__VOID,
459 signals[SIGNAL_RENDER_COMPLETE] =
460 g_signal_new("render-complete",
461 G_OBJECT_CLASS_TYPE(gobject_class),
463 G_STRUCT_OFFSET(PixbufRendererClass, render_complete),
465 g_cclosure_marshal_VOID__VOID,
468 signals[SIGNAL_DRAG] =
470 G_OBJECT_CLASS_TYPE(gobject_class),
472 G_STRUCT_OFFSET(PixbufRendererClass, drag),
474 g_cclosure_marshal_VOID__BOXED,
479 static void pixbuf_renderer_init(PixbufRenderer *pr)
483 box = GTK_WIDGET(pr);
485 pr->zoom_min = PR_ZOOM_MIN;
486 pr->zoom_max = PR_ZOOM_MAX;
487 pr->zoom_quality = GDK_INTERP_BILINEAR;
488 pr->zoom_2pass = FALSE;
493 pr->dither_quality = GDK_RGB_DITHER_NORMAL;
495 pr->scroll_reset = PR_SCROLL_RESET_TOPLEFT;
497 pr->draw_idle_id = -1;
499 pr->tile_width = PR_TILE_SIZE;
500 pr->tile_height = PR_TILE_SIZE;
503 pr->tile_cache_size = 0;
505 pr->tile_cache_max = PR_CACHE_SIZE_DEFAULT;
507 pr->scroller_id = -1;
508 pr->scroller_overlay = -1;
510 pr->source_tiles_enabled = FALSE;
511 pr->source_tiles = NULL;
515 pr->norm_center_x = 0.5;
516 pr->norm_center_y = 0.5;
518 gtk_widget_set_double_buffered(box, FALSE);
519 g_signal_connect_after(G_OBJECT(box), "size_allocate",
520 G_CALLBACK(pr_size_cb), pr);
522 pr_signals_connect(pr);
525 static void pixbuf_renderer_finalize(GObject *object)
529 pr = PIXBUF_RENDERER(object);
532 pr_tile_free_all(pr);
535 if (pr->pixbuf) g_object_unref(pr->pixbuf);
536 if (pr->spare_tile) g_object_unref(pr->spare_tile);
538 pr_scroller_timer_set(pr, FALSE);
539 pr_overlay_list_clear(pr);
541 pr_source_tile_free_all(pr);
544 PixbufRenderer *pixbuf_renderer_new(void)
546 return g_object_new(TYPE_PIXBUF_RENDERER, NULL);
549 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
550 const GValue *value, GParamSpec *pspec)
554 pr = PIXBUF_RENDERER(object);
559 pr->zoom_min = g_value_get_double(value);
562 pr->zoom_max = g_value_get_double(value);
564 case PROP_ZOOM_QUALITY:
565 pr->zoom_quality = g_value_get_uint(value);
567 case PROP_ZOOM_2PASS:
568 pr->zoom_2pass = g_value_get_boolean(value);
570 case PROP_ZOOM_EXPAND:
571 pr->zoom_expand = g_value_get_boolean(value);
573 case PROP_DITHER_QUALITY:
574 pr->dither_quality = g_value_get_uint(value);
576 case PROP_SCROLL_RESET:
577 pr->scroll_reset = g_value_get_uint(value);
579 case PROP_DELAY_FLIP:
580 pr->delay_flip = g_value_get_boolean(value);
583 pr->loading = g_value_get_boolean(value);
586 pr->complete = g_value_get_boolean(value);
588 case PROP_CACHE_SIZE_DISPLAY:
589 pr->tile_cache_max = g_value_get_uint(value);
591 case PROP_CACHE_SIZE_TILES:
592 pr->source_tiles_cache_size = g_value_get_uint(value);
594 case PROP_WINDOW_FIT:
595 pr->window_fit = g_value_get_boolean(value);
597 case PROP_WINDOW_LIMIT:
598 pr->window_limit = g_value_get_boolean(value);
600 case PROP_WINDOW_LIMIT_VALUE:
601 pr->window_limit_size = g_value_get_uint(value);
603 case PROP_AUTOFIT_LIMIT:
604 pr->autofit_limit = g_value_get_boolean(value);
606 case PROP_AUTOFIT_LIMIT_VALUE:
607 pr->autofit_limit_size = g_value_get_uint(value);
610 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
615 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
616 GValue *value, GParamSpec *pspec)
620 pr = PIXBUF_RENDERER(object);
625 g_value_set_double(value, pr->zoom_min);
628 g_value_set_double(value, pr->zoom_max);
630 case PROP_ZOOM_QUALITY:
631 g_value_set_uint(value, pr->zoom_quality);
633 case PROP_ZOOM_2PASS:
634 g_value_set_boolean(value, pr->zoom_2pass);
636 case PROP_ZOOM_EXPAND:
637 g_value_set_boolean(value, pr->zoom_expand);
639 case PROP_DITHER_QUALITY:
640 g_value_set_uint(value, pr->dither_quality);
642 case PROP_SCROLL_RESET:
643 g_value_set_uint(value, pr->scroll_reset);
645 case PROP_DELAY_FLIP:
646 g_value_set_boolean(value, pr->delay_flip);
649 g_value_set_boolean(value, pr->loading);
652 g_value_set_boolean(value, pr->complete);
654 case PROP_CACHE_SIZE_DISPLAY:
655 g_value_set_uint(value, pr->tile_cache_max);
657 case PROP_CACHE_SIZE_TILES:
658 g_value_set_uint(value, pr->source_tiles_cache_size);
660 case PROP_WINDOW_FIT:
661 g_value_set_boolean(value, pr->window_fit);
663 case PROP_WINDOW_LIMIT:
664 g_value_set_boolean(value, pr->window_limit);
666 case PROP_WINDOW_LIMIT_VALUE:
667 g_value_set_uint(value, pr->window_limit_size);
669 case PROP_AUTOFIT_LIMIT:
670 g_value_set_boolean(value, pr->autofit_limit);
672 case PROP_AUTOFIT_LIMIT_VALUE:
673 g_value_set_uint(value, pr->autofit_limit_size);
676 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
681 static gint pixbuf_renderer_expose(GtkWidget *widget, GdkEventExpose *event)
683 if (GTK_WIDGET_DRAWABLE(widget))
685 if (!GTK_WIDGET_NO_WINDOW(widget))
687 if (event->window != widget->window)
691 gdk_window_get_position(event->window, &area.x, &area.y);
693 area.x += event->area.x;
694 area.y += event->area.y;
695 area.width = event->area.width;
696 area.height = event->area.height;
697 pixbuf_renderer_paint(PIXBUF_RENDERER(widget), &area);
701 pixbuf_renderer_paint(PIXBUF_RENDERER(widget), &event->area);
710 *-------------------------------------------------------------------
712 *-------------------------------------------------------------------
715 static void widget_set_cursor(GtkWidget *widget, gint icon)
719 if (!widget->window) return;
727 cursor = gdk_cursor_new(icon);
730 gdk_window_set_cursor(widget->window, cursor);
732 if (cursor) gdk_cursor_unref(cursor);
735 static gint pixmap_calc_size(GdkPixmap *pixmap)
739 d = gdk_drawable_get_depth(pixmap);
740 gdk_drawable_get_size(pixmap, &w, &h);
741 return w * h * (d / 8);
744 static gint pr_clip_region(gint x, gint y, gint w, gint h,
745 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
746 gint *rx, gint *ry, gint *rw, gint *rh)
748 if (clip_x + clip_w <= x ||
750 clip_y + clip_h <= y ||
756 *rx = MAX(x, clip_x);
757 *rw = MIN((x + w), (clip_x + clip_w)) - *rx;
759 *ry = MAX(y, clip_y);
760 *rh = MIN((y + h), (clip_y + clip_h)) - *ry;
765 static gint pr_parent_window_sizable(PixbufRenderer *pr)
767 GdkWindowState state;
769 if (!pr->parent_window) return FALSE;
770 if (!pr->window_fit) return FALSE;
771 if (!GTK_WIDGET(pr)->window) return FALSE;
773 if (!pr->parent_window->window) return FALSE;
774 state = gdk_window_get_state(pr->parent_window->window);
775 if (state & GDK_WINDOW_STATE_MAXIMIZED) return FALSE;
780 static gint pr_parent_window_resize(PixbufRenderer *pr, gint w, gint h)
786 if (!pr_parent_window_sizable(pr)) return FALSE;
788 if (pr->window_limit)
790 gint sw = gdk_screen_width() * pr->window_limit_size / 100;
791 gint sh = gdk_screen_height() * pr->window_limit_size / 100;
797 widget = GTK_WIDGET(pr);
798 parent = GTK_WIDGET(pr->parent_window);
800 w += (parent->allocation.width - widget->allocation.width);
801 h += (parent->allocation.height - widget->allocation.height);
803 gdk_drawable_get_size(parent->window, &ww, &wh);
804 if (w == ww && h == wh) return FALSE;
806 gdk_window_resize(parent->window, w, h);
811 void pixbuf_renderer_set_parent(PixbufRenderer *pr, GtkWindow *window)
813 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
814 g_return_if_fail(window == NULL || GTK_IS_WINDOW(window));
816 pr->parent_window = GTK_WIDGET(window);
819 GtkWindow *pixbuf_renderer_get_parent(PixbufRenderer *pr)
821 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
823 return GTK_WINDOW(pr->parent_window);
828 *-------------------------------------------------------------------
830 *-------------------------------------------------------------------
833 static void pr_overlay_get_position(PixbufRenderer *pr, OverlayData *od,
834 gint *x, gint *y, gint *w, gint *h)
838 pw = gdk_pixbuf_get_width(od->pixbuf);
839 ph = gdk_pixbuf_get_height(od->pixbuf);
843 if (od->flags & OVL_RELATIVE)
845 if (px < 0) px = pr->window_width - pw + px;
846 if (py < 0) py = pr->window_height - ph + py;
855 static void pr_overlay_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
861 box = GTK_WIDGET(pr);
863 work = pr->overlay_list;
873 pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
874 if (pr_clip_region(x, y, w, h, px, py, pw, ph, &rx, &ry, &rw, &rh))
876 if (!pr->overlay_buffer)
878 pr->overlay_buffer = gdk_pixmap_new(((GtkWidget *)pr)->window, pr->tile_width, pr->tile_height, -1);
883 gdk_draw_drawable(pr->overlay_buffer, box->style->fg_gc[GTK_WIDGET_STATE(box)],
885 rx - (pr->x_offset + (it->x - pr->x_scroll)),
886 ry - (pr->y_offset + (it->y - pr->y_scroll)),
888 gdk_draw_pixbuf(pr->overlay_buffer,
889 box->style->fg_gc[GTK_WIDGET_STATE(box)],
893 pr->dither_quality, rx, ry);
894 gdk_draw_drawable(od->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
897 rx - px, ry - py, rw, rh);
901 /* no ImageTile means region may be larger than our scratch buffer */
904 for (sx = rx; sx < rx + rw; sx += pr->tile_width)
905 for (sy = ry; sy < ry + rh; sy += pr->tile_height)
909 sw = MIN(rx + rw - sx, pr->tile_width);
910 sh = MIN(ry + rh - sy, pr->tile_height);
912 gdk_draw_rectangle(pr->overlay_buffer,
913 box->style->bg_gc[GTK_WIDGET_STATE(box)], TRUE,
915 gdk_draw_pixbuf(pr->overlay_buffer,
916 box->style->fg_gc[GTK_WIDGET_STATE(box)],
920 pr->dither_quality, sx, sy);
921 gdk_draw_drawable(od->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
924 sx - px, sy - py, sw, sh);
931 static void pr_overlay_queue_draw(PixbufRenderer *pr, OverlayData *od)
935 pr_overlay_get_position(pr, od, &x, &y, &w, &h);
936 pr_queue(pr, pr->x_scroll - pr->x_offset + x,
937 pr->y_scroll - pr->y_offset + y,
939 FALSE, TILE_RENDER_ALL, FALSE, FALSE);
941 pr_border_draw(pr, x, y, w, h);
944 static void pr_overlay_queue_all(PixbufRenderer *pr)
948 work = pr->overlay_list;
951 OverlayData *od = work->data;
954 pr_overlay_queue_draw(pr, od);
958 static void pr_overlay_update_sizes(PixbufRenderer *pr)
962 work = pr->overlay_list;
965 OverlayData *od = work->data;
968 if (!od->window) continue;
970 if (od->flags & OVL_RELATIVE)
974 pr_overlay_get_position(pr, od, &x, &y, &w, &h);
975 gdk_window_move_resize(od->window, x, y, w, h);
980 static OverlayData *pr_overlay_find(PixbufRenderer *pr, gint id)
984 work = pr->overlay_list;
987 OverlayData *od = work->data;
990 if (od->id == id) return od;
996 gint pixbuf_renderer_overlay_add(PixbufRenderer *pr, GdkPixbuf *pixbuf, gint x, gint y,
997 OverlayRendererFlags flags)
1001 gint px, py, pw, ph;
1002 GdkWindowAttr attributes;
1003 gint attributes_mask;
1005 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
1006 g_return_val_if_fail(pixbuf != NULL, -1);
1009 while (pr_overlay_find(pr, id)) id++;
1011 od = g_new0(OverlayData, 1);
1013 od->pixbuf = pixbuf;
1014 g_object_ref(G_OBJECT(od->pixbuf));
1019 pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
1021 attributes.window_type = GDK_WINDOW_CHILD;
1022 attributes.wclass = GDK_INPUT_OUTPUT;
1023 attributes.width = pw;
1024 attributes.height = ph;
1025 attributes.event_mask = GDK_EXPOSURE_MASK;
1026 attributes_mask = 0;
1028 od->window = gdk_window_new(GTK_WIDGET(pr)->window, &attributes, attributes_mask);
1029 gdk_window_set_user_data(od->window, pr);
1030 gdk_window_move(od->window, px, py);
1031 gdk_window_show(od->window);
1033 pr->overlay_list = g_list_append(pr->overlay_list, od);
1035 pr_overlay_queue_draw(pr, od);
1040 static void pr_overlay_free(PixbufRenderer *pr, OverlayData *od)
1042 pr->overlay_list = g_list_remove(pr->overlay_list, od);
1044 if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
1045 if (od->window) gdk_window_destroy(od->window);
1048 if (!pr->overlay_list && pr->overlay_buffer)
1050 g_object_unref(pr->overlay_buffer);
1051 pr->overlay_buffer = NULL;
1055 static void pr_overlay_list_clear(PixbufRenderer *pr)
1057 while (pr->overlay_list)
1061 od = pr->overlay_list->data;
1062 pr_overlay_free(pr, od);
1066 void pixbuf_renderer_overlay_set(PixbufRenderer *pr, gint id, GdkPixbuf *pixbuf, gint x, gint y)
1070 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1072 od = pr_overlay_find(pr, id);
1077 gint px, py, pw, ph;
1079 g_object_ref(G_OBJECT(pixbuf));
1080 g_object_unref(G_OBJECT(od->pixbuf));
1081 od->pixbuf = pixbuf;
1086 pr_overlay_queue_draw(pr, od);
1087 pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
1088 gdk_window_move_resize(od->window, px, py, pw, ph);
1092 pr_overlay_queue_draw(pr, od);
1093 pr_overlay_free(pr, od);
1097 gint pixbuf_renderer_overlay_get(PixbufRenderer *pr, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
1101 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
1103 od = pr_overlay_find(pr, id);
1104 if (!od) return FALSE;
1106 if (pixbuf) *pixbuf = od->pixbuf;
1113 void pixbuf_renderer_overlay_remove(PixbufRenderer *pr, gint id)
1115 pixbuf_renderer_overlay_set(pr, id, NULL, 0, 0);
1119 *-------------------------------------------------------------------
1121 *-------------------------------------------------------------------
1125 static gboolean pr_scroller_update_cb(gpointer data)
1127 PixbufRenderer *pr = data;
1131 /* this was a simple scroll by difference between scroller and mouse position,
1132 * but all this math results in a smoother result and accounts for a dead zone.
1135 if (abs(pr->scroller_xpos - pr->scroller_x) < PR_SCROLLER_DEAD_ZONE)
1141 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1142 x = (pr->scroller_xpos - pr->scroller_x) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1143 x += (x > 0) ? -shift : shift;
1146 if (abs(pr->scroller_ypos - pr->scroller_y) < PR_SCROLLER_DEAD_ZONE)
1152 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1153 y = (pr->scroller_ypos - pr->scroller_y) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
1154 y += (y > 0) ? -shift : shift;
1157 if (abs(x) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
1163 xinc = pr->scroller_xinc;
1167 if (xinc < 0) xinc = 0;
1168 if (x < xinc) xinc = x;
1169 if (x > xinc) xinc = MIN(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
1173 if (xinc > 0) xinc = 0;
1174 if (x > xinc) xinc = x;
1175 if (x < xinc) xinc = MAX(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
1179 if (abs(y) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
1185 yinc = pr->scroller_yinc;
1189 if (yinc < 0) yinc = 0;
1190 if (y < yinc) yinc = y;
1191 if (y > yinc) yinc = MIN(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
1195 if (yinc > 0) yinc = 0;
1196 if (y > yinc) yinc = y;
1197 if (y < yinc) yinc = MAX(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
1201 pr->scroller_xinc = xinc;
1202 pr->scroller_yinc = yinc;
1204 xinc = xinc / PR_SCROLLER_UPDATES_PER_SEC;
1205 yinc = yinc / PR_SCROLLER_UPDATES_PER_SEC;
1207 pixbuf_renderer_scroll(pr, xinc, yinc);
1212 static void pr_scroller_timer_set(PixbufRenderer *pr, gint start)
1214 if (pr->scroller_id != -1)
1216 g_source_remove(pr->scroller_id);
1217 pr->scroller_id = -1;
1222 pr->scroller_id = g_timeout_add(1000 / PR_SCROLLER_UPDATES_PER_SEC,
1223 pr_scroller_update_cb, pr);
1227 static void pr_scroller_start(PixbufRenderer *pr, gint x, gint y)
1229 if (pr->scroller_overlay == -1)
1235 pixbuf = pixbuf_inline(PIXBUF_INLINE_SCROLLER);
1237 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 32, 32);
1238 gdk_pixbuf_fill(pixbuf, 0x000000ff);
1240 w = gdk_pixbuf_get_width(pixbuf);
1241 h = gdk_pixbuf_get_height(pixbuf);
1243 pr->scroller_overlay = pixbuf_renderer_overlay_add(pr, pixbuf, x - w / 2, y - h / 2, OVL_NORMAL);
1244 g_object_unref(pixbuf);
1249 pr->scroller_xpos = x;
1250 pr->scroller_ypos = y;
1252 pr_scroller_timer_set(pr, TRUE);
1255 static void pr_scroller_stop(PixbufRenderer *pr)
1257 if (pr->scroller_id == -1) return;
1259 pixbuf_renderer_overlay_remove(pr, pr->scroller_overlay);
1260 pr->scroller_overlay = -1;
1262 pr_scroller_timer_set(pr, FALSE);
1266 *-------------------------------------------------------------------
1268 *-------------------------------------------------------------------
1271 static void pr_border_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
1274 gint rx, ry, rw, rh;
1276 box = GTK_WIDGET(pr);
1278 if (!box->window) return;
1280 if (!pr->pixbuf && !pr->source_tiles_enabled)
1282 if (pr_clip_region(x, y, w, h,
1284 pr->window_width, pr->window_height,
1285 &rx, &ry, &rw, &rh))
1287 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1288 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1293 if (pr->vis_width < pr->window_width)
1295 if (pr->x_offset > 0 &&
1296 pr_clip_region(x, y, w, h,
1298 pr->x_offset, pr->window_height,
1299 &rx, &ry, &rw, &rh))
1301 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1302 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1304 if (pr->window_width - pr->vis_width - pr->x_offset > 0 &&
1305 pr_clip_region(x, y, w, h,
1306 pr->x_offset + pr->vis_width, 0,
1307 pr->window_width - pr->vis_width - pr->x_offset, pr->window_height,
1308 &rx, &ry, &rw, &rh))
1310 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1311 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1314 if (pr->vis_height < pr->window_height)
1316 if (pr->y_offset > 0 &&
1317 pr_clip_region(x, y, w, h,
1319 pr->vis_width, pr->y_offset,
1320 &rx, &ry, &rw, &rh))
1322 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1323 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1325 if (pr->window_height - pr->vis_height - pr->y_offset > 0 &&
1326 pr_clip_region(x, y, w, h,
1327 pr->x_offset, pr->y_offset + pr->vis_height,
1328 pr->vis_width, pr->window_height - pr->vis_height - pr->y_offset,
1329 &rx, &ry, &rw, &rh))
1331 gdk_window_clear_area(box->window, rx, ry, rw, rh);
1332 pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
1337 static void pr_border_clear(PixbufRenderer *pr)
1339 pr_border_draw(pr, 0, 0, pr->window_width, pr->window_height);
1342 void pixbuf_renderer_set_color(PixbufRenderer *pr, GdkColor *color)
1347 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1349 widget = GTK_WIDGET(pr);
1354 style = gtk_style_copy(gtk_widget_get_style(widget));
1355 slot = &style->bg[GTK_STATE_NORMAL];
1357 slot->red = color->red;
1358 slot->green = color->green;
1359 slot->blue = color->blue;
1362 style = gtk_style_copy(gtk_widget_get_default_style());
1365 gtk_widget_set_style(widget, style);
1367 if (GTK_WIDGET_VISIBLE(widget)) pr_border_clear(pr);
1372 *-------------------------------------------------------------------
1374 *-------------------------------------------------------------------
1377 static void pr_source_tile_free(SourceTile *st)
1381 if (st->pixbuf) g_object_unref(st->pixbuf);
1385 static void pr_source_tile_free_all(PixbufRenderer *pr)
1389 work = pr->source_tiles;
1397 pr_source_tile_free(st);
1400 g_list_free(pr->source_tiles);
1401 pr->source_tiles = NULL;
1404 static void pr_source_tile_unset(PixbufRenderer *pr)
1406 pr_source_tile_free_all(pr);
1407 pr->source_tiles_enabled = FALSE;
1410 static gint pr_source_tile_visible(PixbufRenderer *pr, SourceTile *st)
1412 gint x1, y1, x2, y2;
1414 if (!st) return FALSE;
1416 x1 = (pr->x_scroll / pr->tile_width) * pr->tile_width;
1417 y1 = (pr->y_scroll / pr->tile_height) * pr->tile_height;
1418 x2 = ((pr->x_scroll + pr->vis_width) / pr->tile_width) * pr->tile_width + pr->tile_width;
1419 y2 = ((pr->y_scroll + pr->vis_height) / pr->tile_height) * pr->tile_height + pr->tile_height;
1421 return !((gdouble)st->x * pr->scale > (gdouble)x2 ||
1422 (gdouble)(st->x + pr->source_tile_width) * pr->scale < (gdouble)x1 ||
1423 (gdouble)st->y * pr->scale > (gdouble)y2 ||
1424 (gdouble)(st->y + pr->source_tile_height) * pr->scale < (gdouble)y1);
1427 static SourceTile *pr_source_tile_new(PixbufRenderer *pr, gint x, gint y)
1429 SourceTile *st = NULL;
1432 g_return_val_if_fail(pr->source_tile_width >= 1 && pr->source_tile_height >= 1, NULL);
1434 if (pr->source_tiles_cache_size < 4) pr->source_tiles_cache_size = 4;
1436 count = g_list_length(pr->source_tiles);
1437 if (count >= pr->source_tiles_cache_size)
1441 work = g_list_last(pr->source_tiles);
1442 while (work && count >= pr->source_tiles_cache_size)
1446 needle = work->data;
1449 if (!pr_source_tile_visible(pr, needle))
1451 pr->source_tiles = g_list_remove(pr->source_tiles, needle);
1453 if (pr->func_tile_dispose)
1455 pr->func_tile_dispose(pr, needle->x, needle->y,
1456 pr->source_tile_width, pr->source_tile_height,
1457 needle->pixbuf, pr->func_tile_data);
1466 pr_source_tile_free(needle);
1476 st = g_new0(SourceTile, 1);
1477 st->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8,
1478 pr->source_tile_width, pr->source_tile_height);
1481 st->x = (x / pr->source_tile_width) * pr->source_tile_width;
1482 st->y = (y / pr->source_tile_height) * pr->source_tile_height;
1485 pr->source_tiles = g_list_prepend(pr->source_tiles, st);
1490 static SourceTile *pr_source_tile_request(PixbufRenderer *pr, gint x, gint y)
1494 st = pr_source_tile_new(pr, x, y);
1495 if (!st) return NULL;
1497 if (pr->func_tile_request &&
1498 pr->func_tile_request(pr, st->x, st->y,
1499 pr->source_tile_width, pr->source_tile_height, st->pixbuf, pr->func_tile_data))
1504 pr_tile_invalidate_region(pr, st->x * pr->scale, st->y * pr->scale,
1505 pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
1510 static SourceTile *pr_source_tile_find(PixbufRenderer *pr, gint x, gint y)
1514 work = pr->source_tiles;
1517 SourceTile *st = work->data;
1519 if (x >= st->x && x < st->x + pr->source_tile_width &&
1520 y >= st->y && y < st->y + pr->source_tile_height)
1522 if (work != pr->source_tiles)
1524 pr->source_tiles = g_list_remove_link(pr->source_tiles, work);
1525 pr->source_tiles = g_list_concat(work, pr->source_tiles);
1536 static GList *pr_source_tile_compute_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h, gint request)
1544 if (w > pr->image_width) w = pr->image_width;
1545 if (h > pr->image_height) h = pr->image_height;
1547 sx = (x / pr->source_tile_width) * pr->source_tile_width;
1548 sy = (y / pr->source_tile_height) * pr->source_tile_height;
1550 for (x1 = sx; x1 < x + w; x1+= pr->source_tile_width)
1552 for (y1 = sy; y1 < y + h; y1 += pr->source_tile_height)
1556 st = pr_source_tile_find(pr, x1, y1);
1557 if (!st && request) st = pr_source_tile_request(pr, x1, y1);
1559 if (st) list = g_list_prepend(list, st);
1563 return g_list_reverse(list);
1566 static void pr_source_tile_changed(PixbufRenderer *pr, gint x, gint y, gint width, gint height)
1570 if (width < 1 || height < 1) return;
1572 work = pr->source_tiles;
1576 gint rx, ry, rw, rh;
1581 if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1582 x, y, width, height,
1583 &rx, &ry, &rw, &rh))
1587 pixbuf = gdk_pixbuf_new_subpixbuf(st->pixbuf, rx - st->x, ry - st->y, rw, rh);
1588 if (pr->func_tile_request &&
1589 pr->func_tile_request(pr, rx, ry, rw, rh, pixbuf, pr->func_tile_data))
1591 pr_tile_invalidate_region(pr, rx * pr->scale, ry * pr->scale,
1592 rw * pr->scale, rh * pr->scale);
1594 g_object_unref(pixbuf);
1599 static gint pr_source_tile_render(PixbufRenderer *pr, ImageTile *it,
1600 gint x, gint y, gint w, gint h,
1601 gint new_data, gint fast)
1608 box = GTK_WIDGET(pr);
1610 if (pr->zoom == 1.0 || pr->scale == 1.0)
1612 list = pr_source_tile_compute_region(pr, it->x + x, it->y + y, w, h, TRUE);
1617 gint rx, ry, rw, rh;
1622 if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1623 it->x + x, it->y + y, w, h,
1624 &rx, &ry, &rw, &rh))
1628 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
1629 rx - st->x, ry - st->y, rw, rh);
1631 else /* (pr->zoom == 1.0 || pr->scale == 1.0) */
1633 gdk_draw_pixbuf(it->pixmap,
1634 box->style->fg_gc[GTK_WIDGET_STATE(box)],
1636 rx - st->x, ry - st->y,
1637 rx - it->x, ry - it->y,
1639 pr->dither_quality, rx, ry);
1646 gdouble scale_x, scale_y;
1647 gint sx, sy, sw, sh;
1649 if (pr->image_width == 0 || pr->image_height == 0) return FALSE;
1650 scale_x = (gdouble)pr->width / pr->image_width;
1651 scale_y = (gdouble)pr->height / pr->image_height;
1653 sx = (gdouble)(it->x + x) / scale_x;
1654 sy = (gdouble)(it->y + y) / scale_y;
1655 sw = (gdouble)w / scale_x;
1656 sh = (gdouble)h / scale_y;
1658 if (pr->width < PR_MIN_SCALE_SIZE || pr->height < PR_MIN_SCALE_SIZE) fast = TRUE;
1661 /* draws red over draw region, to check for leaks (regions not filled) */
1662 pixbuf_set_rect_fill(it->pixbuf, x, y, w, h, 255, 0, 0, 255);
1665 list = pr_source_tile_compute_region(pr, sx, sy, sw, sh, TRUE);
1670 gint rx, ry, rw, rh;
1671 gint stx, sty, stw, sth;
1676 stx = floor((gdouble)st->x * scale_x);
1677 sty = floor((gdouble)st->y * scale_y);
1678 stw = ceil((gdouble)(st->x + pr->source_tile_width) * scale_x) - stx;
1679 sth = ceil((gdouble)(st->y + pr->source_tile_height) * scale_y) - sty;
1681 if (pr_clip_region(stx, sty, stw, sth,
1682 it->x + x, it->y + y, w, h,
1683 &rx, &ry, &rw, &rh))
1687 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
1688 rx - st->x, ry - st->y, rw, rh);
1695 /* may need to use unfloored stx,sty values here */
1696 offset_x = (gdouble)(stx - it->x);
1697 offset_y = (gdouble)(sty - it->y);
1699 gdk_pixbuf_scale(st->pixbuf, it->pixbuf, rx - it->x, ry - it->y, rw, rh,
1700 (gdouble) 0.0 + offset_x,
1701 (gdouble) 0.0 + offset_y,
1703 (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality);
1715 void pixbuf_renderer_set_tiles(PixbufRenderer *pr, gint width, gint height,
1716 gint tile_width, gint tile_height, gint cache_size,
1717 PixbufRendererTileRequestFunc func_request,
1718 PixbufRendererTileDisposeFunc func_dispose,
1722 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1723 g_return_if_fail(tile_width >= 32 && tile_width >= 32);
1724 g_return_if_fail(width >= 32 && height > 32);
1725 g_return_if_fail(func_request != NULL);
1727 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1730 pr_source_tile_unset(pr);
1732 if (cache_size < 4) cache_size = 4;
1734 pr->source_tiles_enabled = TRUE;
1735 pr->source_tiles_cache_size = cache_size;
1736 pr->source_tile_width = tile_width;
1737 pr->source_tile_height = tile_height;
1739 pr->image_width = width;
1740 pr->image_height = height;
1742 pr->func_tile_request = func_request;
1743 pr->func_tile_dispose = func_dispose;
1744 pr->func_tile_data = user_data;
1746 pr_zoom_sync(pr, zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
1747 pr_redraw(pr, TRUE);
1750 void pixbuf_renderer_set_tiles_size(PixbufRenderer *pr, gint width, gint height)
1752 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1753 g_return_if_fail(width >= 32 && height > 32);
1755 if (!pr->source_tiles_enabled) return;
1756 if (pr->image_width == width && pr->image_height == height) return;
1758 pr->image_width = width;
1759 pr->image_height = height;
1761 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
1764 gint pixbuf_renderer_get_tiles(PixbufRenderer *pr)
1766 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
1768 return pr->source_tiles_enabled;
1771 static void pr_zoom_adjust_real(PixbufRenderer *pr, gdouble increment,
1772 PrZoomFlags flags, gint x, gint y)
1774 gdouble zoom = pr->zoom;
1776 if (increment == 0.0) return;
1780 if (pr->scale < 1.0)
1782 zoom = 0.0 - 1.0 / pr->scale;
1790 if (increment < 0.0)
1792 if (zoom >= 1.0 && zoom + increment < 1.0)
1794 zoom = zoom + increment - 2.0;
1798 zoom = zoom + increment;
1803 if (zoom <= -1.0 && zoom + increment > -1.0)
1805 zoom = zoom + increment + 2.0;
1809 zoom = zoom + increment;
1813 pr_zoom_sync(pr, zoom, flags, x, y);
1817 *-------------------------------------------------------------------
1819 *-------------------------------------------------------------------
1822 static ImageTile *pr_tile_new(gint x, gint y, gint width, gint height)
1826 it = g_new0(ImageTile, 1);
1833 it->render_done = TILE_RENDER_NONE;
1838 static void pr_tile_free(ImageTile *it)
1842 if (it->pixbuf) g_object_unref(it->pixbuf);
1843 if (it->pixmap) g_object_unref(it->pixmap);
1848 static void pr_tile_free_all(PixbufRenderer *pr)
1863 g_list_free(pr->tiles);
1865 pr->tile_cache_size = 0;
1868 static ImageTile *pr_tile_add(PixbufRenderer *pr, gint x, gint y)
1872 it = pr_tile_new(x, y, pr->tile_width, pr->tile_height);
1874 if (it->x + it->w > pr->width) it->w = pr->width - it->x;
1875 if (it->y + it->h > pr->height) it->h = pr->height - it->y;
1877 pr->tiles = g_list_prepend(pr->tiles, it);
1878 pr->tile_cache_size += it->size;
1883 static void pr_tile_remove(PixbufRenderer *pr, ImageTile *it)
1887 QueueData *qd = it->qd;
1890 pr->draw_queue = g_list_remove(pr->draw_queue, qd);
1896 QueueData *qd = it->qd2;
1899 pr->draw_queue_2pass = g_list_remove(pr->draw_queue_2pass, qd);
1903 pr->tiles = g_list_remove(pr->tiles, it);
1904 pr->tile_cache_size -= it->size;
1909 static void pr_tile_free_space(PixbufRenderer *pr, guint space, ImageTile *it)
1914 work = g_list_last(pr->tiles);
1916 if (pr->source_tiles_enabled && pr->scale < 1.0)
1920 tiles = (pr->vis_width / pr->tile_width + 1) * (pr->vis_height / pr->tile_height + 1);
1921 tile_max = MAX(tiles * pr->tile_width * pr->tile_height * 3,
1922 (gint)((gdouble)pr->tile_cache_max * 1048576.0 * pr->scale));
1926 tile_max = pr->tile_cache_max * 1048576;
1929 while (work && pr->tile_cache_size + space > tile_max)
1933 needle = work->data;
1936 ((!needle->qd && !needle->qd2) || !pr_tile_is_visible(pr, needle))) pr_tile_remove(pr, needle);
1940 static void pr_tile_invalidate_all(PixbufRenderer *pr)
1952 it->render_done = TILE_RENDER_NONE;
1953 it->render_todo = TILE_RENDER_ALL;
1956 it->w = MIN(pr->tile_width, pr->width - it->x);
1957 it->h = MIN(pr->tile_height, pr->height - it->y);
1961 static void pr_tile_invalidate_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
1967 x1 = (gint)floor(x / pr->tile_width) * pr->tile_width;
1968 x2 = (gint)ceil((x + w) / pr->tile_width) * pr->tile_width;
1970 y1 = (gint)floor(y / pr->tile_height) * pr->tile_height;
1971 y2 = (gint)ceil((y + h) / pr->tile_height) * pr->tile_height;
1981 if (it->x < x2 && it->x + it->w > x1 &&
1982 it->y < y2 && it->y + it->h > y1)
1984 it->render_done = TILE_RENDER_NONE;
1985 it->render_todo = TILE_RENDER_ALL;
1990 static ImageTile *pr_tile_get(PixbufRenderer *pr, gint x, gint y, gint only_existing)
2000 if (it->x == x && it->y == y)
2002 pr->tiles = g_list_delete_link(pr->tiles, work);
2003 pr->tiles = g_list_prepend(pr->tiles, it);
2010 if (only_existing) return NULL;
2012 return pr_tile_add(pr, x, y);
2015 static void pr_tile_prepare(PixbufRenderer *pr, ImageTile *it)
2022 pixmap = gdk_pixmap_new(((GtkWidget *)pr)->window, pr->tile_width, pr->tile_height, -1);
2024 size = pixmap_calc_size(pixmap);
2025 pr_tile_free_space(pr, size, it);
2027 it->pixmap = pixmap;
2029 pr->tile_cache_size += size;
2032 if ((pr->zoom != 1.0 || pr->source_tiles_enabled || (pr->pixbuf && gdk_pixbuf_get_has_alpha(pr->pixbuf)) ||
2033 pr->orientation != EXIF_ORIENTATION_TOP_LEFT || pr->func_post_process) && !it->pixbuf)
2038 /* I don't think that we need a pixbuf with alpha channel here */
2041 pixbuf = gdk_pixbuf_new(gdk_pixbuf_get_colorspace(pr->pixbuf),
2042 gdk_pixbuf_get_has_alpha(pr->pixbuf),
2043 gdk_pixbuf_get_bits_per_sample(pr->pixbuf),
2044 pr->tile_width, pr->tile_height);
2049 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, pr->tile_width, pr->tile_height);
2052 size = gdk_pixbuf_get_rowstride(pixbuf) * pr->tile_height;
2053 pr_tile_free_space(pr, size, it);
2055 it->pixbuf = pixbuf;
2057 pr->tile_cache_size += size;
2062 *-------------------------------------------------------------------
2064 *-------------------------------------------------------------------
2068 static void pr_tile_coords_map_orientation(PixbufRenderer *pr,
2069 gdouble tile_x, gdouble tile_y, /* coordinates of the tile */
2070 gint image_w, gint image_h,
2071 gdouble tile_w, gdouble tile_h,
2072 gdouble *res_x, gdouble *res_y)
2076 switch (pr->orientation)
2078 case EXIF_ORIENTATION_TOP_LEFT:
2079 /* normal -- nothing to do */
2081 case EXIF_ORIENTATION_TOP_RIGHT:
2083 *res_x = image_w - tile_x - tile_w;
2085 case EXIF_ORIENTATION_BOTTOM_RIGHT:
2087 *res_x = image_w - tile_x - tile_w;
2088 *res_y = image_h - tile_y - tile_h;
2090 case EXIF_ORIENTATION_BOTTOM_LEFT:
2092 *res_y = image_h - tile_y - tile_h;
2094 case EXIF_ORIENTATION_LEFT_TOP:
2098 case EXIF_ORIENTATION_RIGHT_TOP:
2099 /* rotated -90 (270) */
2101 *res_y = image_w - tile_x - tile_w;
2103 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2104 *res_x = image_h - tile_y - tile_h;
2105 *res_y = image_w - tile_x - tile_w;
2107 case EXIF_ORIENTATION_LEFT_BOTTOM:
2109 *res_x = image_h - tile_y - tile_h;
2113 /* The other values are out of range */
2116 // log_printf("tile coord y:%f, ih:%d, th:%f ry:%f\n", tile_y, image_h, tile_h, *res_x);
2119 static void pr_tile_region_map_orientation(PixbufRenderer *pr,
2120 gint area_x, gint area_y, /* coordinates of the area inside tile */
2121 gint tile_w, gint tile_h,
2122 gint area_w, gint area_h,
2123 gint *res_x, gint *res_y,
2124 gint *res_w, gint *res_h)
2131 switch (pr->orientation)
2133 case EXIF_ORIENTATION_TOP_LEFT:
2134 /* normal -- nothing to do */
2136 case EXIF_ORIENTATION_TOP_RIGHT:
2138 *res_x = tile_w - area_x - area_w;
2140 case EXIF_ORIENTATION_BOTTOM_RIGHT:
2142 *res_x = tile_w - area_x - area_w;
2143 *res_y = tile_h - area_y - area_h;
2145 case EXIF_ORIENTATION_BOTTOM_LEFT:
2147 *res_y = tile_h - area_y - area_h;
2149 case EXIF_ORIENTATION_LEFT_TOP:
2155 case EXIF_ORIENTATION_RIGHT_TOP:
2156 /* rotated -90 (270) */
2158 *res_y = tile_w - area_x - area_w;
2162 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2163 *res_x = tile_h - area_y - area_h;
2164 *res_y = tile_w - area_x - area_w;
2168 case EXIF_ORIENTATION_LEFT_BOTTOM:
2170 *res_x = tile_h - area_y - area_h;
2176 /* The other values are out of range */
2179 // log_printf("inside y:%d, th:%d, ah:%d ry:%d\n", area_y, tile_h, area_h, *res_x);
2182 static void pr_coords_map_orientation_reverse(PixbufRenderer *pr,
2183 gint area_x, gint area_y,
2184 gint tile_w, gint tile_h,
2185 gint area_w, gint area_h,
2186 gint *res_x, gint *res_y,
2187 gint *res_w, gint *res_h)
2194 switch (pr->orientation)
2196 case EXIF_ORIENTATION_TOP_LEFT:
2197 /* normal -- nothing to do */
2199 case EXIF_ORIENTATION_TOP_RIGHT:
2201 *res_x = tile_w - area_x - area_w;
2203 case EXIF_ORIENTATION_BOTTOM_RIGHT:
2205 *res_x = tile_w - area_x - area_w;
2206 *res_y = tile_h - area_y - area_h;
2208 case EXIF_ORIENTATION_BOTTOM_LEFT:
2210 *res_y = tile_h - area_y - area_h;
2212 case EXIF_ORIENTATION_LEFT_TOP:
2218 case EXIF_ORIENTATION_RIGHT_TOP:
2219 /* rotated -90 (270) */
2220 *res_x = tile_w - area_y - area_h;
2225 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2226 *res_x = tile_w - area_y - area_h;
2227 *res_y = tile_h - area_x - area_w;
2231 case EXIF_ORIENTATION_LEFT_BOTTOM:
2234 *res_y = tile_h - area_x - area_w;
2239 /* The other values are out of range */
2245 static GdkPixbuf *pr_get_spare_tile(PixbufRenderer *pr)
2247 if (!pr->spare_tile) pr->spare_tile = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, pr->tile_width, pr->tile_height);
2248 return pr->spare_tile;
2251 #define COLOR_BYTES 3 /* rgb */
2253 static void pr_tile_rotate_90_clockwise(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2255 GdkPixbuf *src = *tile;
2258 guchar *s_pix, *d_pix;
2260 guchar *ip, *spi, *dpi;
2262 gint tw = pr->tile_width;
2264 srs = gdk_pixbuf_get_rowstride(src);
2265 s_pix = gdk_pixbuf_get_pixels(src);
2266 spi = s_pix + (x * COLOR_BYTES);
2268 dest = pr_get_spare_tile(pr);
2269 drs = gdk_pixbuf_get_rowstride(dest);
2270 d_pix = gdk_pixbuf_get_pixels(dest);
2271 dpi = d_pix + (tw - 1) * COLOR_BYTES;
2273 for (i = y; i < y + h; i++)
2275 sp = spi + (i * srs);
2276 ip = dpi - (i * COLOR_BYTES);
2277 for (j = x; j < x + w; j++)
2279 dp = ip + (j * drs);
2280 memcpy(dp, sp, COLOR_BYTES);
2285 pr->spare_tile = src;
2289 static void pr_tile_rotate_90_counter_clockwise(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2291 GdkPixbuf *src = *tile;
2294 guchar *s_pix, *d_pix;
2296 guchar *ip, *spi, *dpi;
2298 gint th = pr->tile_height;
2300 srs = gdk_pixbuf_get_rowstride(src);
2301 s_pix = gdk_pixbuf_get_pixels(src);
2302 spi = s_pix + (x * COLOR_BYTES);
2304 dest = pr_get_spare_tile(pr);
2305 drs = gdk_pixbuf_get_rowstride(dest);
2306 d_pix = gdk_pixbuf_get_pixels(dest);
2307 dpi = d_pix + (th - 1) * drs;
2309 for (i = y; i < y + h; i++)
2311 sp = spi + (i * srs);
2312 ip = dpi + (i * COLOR_BYTES);
2313 for (j = x; j < x + w; j++)
2315 dp = ip - (j * drs);
2316 memcpy(dp, sp, COLOR_BYTES);
2321 pr->spare_tile = src;
2325 static void pr_tile_mirror_only(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2327 GdkPixbuf *src = *tile;
2330 guchar *s_pix, *d_pix;
2335 gint tw = pr->tile_width;
2337 srs = gdk_pixbuf_get_rowstride(src);
2338 s_pix = gdk_pixbuf_get_pixels(src);
2339 spi = s_pix + (x * COLOR_BYTES);
2341 dest = pr_get_spare_tile(pr);
2342 drs = gdk_pixbuf_get_rowstride(dest);
2343 d_pix = gdk_pixbuf_get_pixels(dest);
2344 dpi = d_pix + (tw - x - 1) * COLOR_BYTES;
2346 for (i = y; i < y + h; i++)
2348 sp = spi + (i * srs);
2349 dp = dpi + (i * drs);
2350 for (j = 0; j < w; j++)
2352 memcpy(dp, sp, COLOR_BYTES);
2358 pr->spare_tile = src;
2362 static void pr_tile_mirror_and_flip(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2364 GdkPixbuf *src = *tile;
2367 guchar *s_pix, *d_pix;
2371 gint tw = pr->tile_width;
2372 gint th = pr->tile_height;
2374 srs = gdk_pixbuf_get_rowstride(src);
2375 s_pix = gdk_pixbuf_get_pixels(src);
2376 spi = s_pix + (x * COLOR_BYTES);
2378 dest = pr_get_spare_tile(pr);
2379 drs = gdk_pixbuf_get_rowstride(dest);
2380 d_pix = gdk_pixbuf_get_pixels(dest);
2381 dpi = d_pix + (th - 1) * drs + (tw - 1) * COLOR_BYTES;
2383 for (i = y; i < y + h; i++)
2385 sp = s_pix + (i * srs) + (x * COLOR_BYTES);
2386 dp = dpi - (i * drs) - (x * COLOR_BYTES);
2387 for (j = 0; j < w; j++)
2389 memcpy(dp, sp, COLOR_BYTES);
2395 pr->spare_tile = src;
2399 static void pr_tile_flip_only(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
2401 GdkPixbuf *src = *tile;
2404 guchar *s_pix, *d_pix;
2408 gint th = pr->tile_height;
2410 srs = gdk_pixbuf_get_rowstride(src);
2411 s_pix = gdk_pixbuf_get_pixels(src);
2412 spi = s_pix + (x * COLOR_BYTES);
2414 dest = pr_get_spare_tile(pr);
2415 drs = gdk_pixbuf_get_rowstride(dest);
2416 d_pix = gdk_pixbuf_get_pixels(dest);
2417 dpi = d_pix + (th - 1) * drs + (x * COLOR_BYTES);
2419 for (i = y; i < y + h; i++)
2421 sp = spi + (i * srs);
2422 dp = dpi - (i * drs);
2423 memcpy(dp, sp, w * COLOR_BYTES);
2426 pr->spare_tile = src;
2430 static void pr_tile_apply_orientation(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h)
2432 switch (pr->orientation)
2434 case EXIF_ORIENTATION_TOP_LEFT:
2435 /* normal -- nothing to do */
2437 case EXIF_ORIENTATION_TOP_RIGHT:
2440 pr_tile_mirror_only(pr, pixbuf, x, y, w, h);
2443 case EXIF_ORIENTATION_BOTTOM_RIGHT:
2446 pr_tile_mirror_and_flip(pr, pixbuf, x, y, w, h);
2449 case EXIF_ORIENTATION_BOTTOM_LEFT:
2452 pr_tile_flip_only(pr, pixbuf, x, y, w, h);
2455 case EXIF_ORIENTATION_LEFT_TOP:
2457 pr_tile_flip_only(pr, pixbuf, x, y, w, h);
2458 pr_tile_rotate_90_clockwise(pr, pixbuf, x, pr->tile_height - y - h, w, h);
2461 case EXIF_ORIENTATION_RIGHT_TOP:
2462 /* rotated -90 (270) */
2464 pr_tile_rotate_90_clockwise(pr, pixbuf, x, y, w, h);
2467 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2469 pr_tile_flip_only(pr, pixbuf, x, y, w, h);
2470 pr_tile_rotate_90_counter_clockwise(pr, pixbuf, x, pr->tile_height - y - h, w, h);
2473 case EXIF_ORIENTATION_LEFT_BOTTOM:
2476 pr_tile_rotate_90_counter_clockwise(pr, pixbuf, x, y, w, h);
2480 /* The other values are out of range */
2486 static void pr_tile_render(PixbufRenderer *pr, ImageTile *it,
2487 gint x, gint y, gint w, gint h,
2488 gint new_data, gint fast)
2494 if (it->render_todo == TILE_RENDER_NONE && it->pixmap && !new_data) return;
2496 if (it->render_done != TILE_RENDER_ALL)
2502 if (!fast) it->render_done = TILE_RENDER_ALL;
2504 else if (it->render_todo != TILE_RENDER_AREA)
2506 if (!fast) it->render_todo = TILE_RENDER_NONE;
2510 if (!fast) it->render_todo = TILE_RENDER_NONE;
2512 if (new_data) it->blank = FALSE;
2514 pr_tile_prepare(pr, it);
2515 has_alpha = (pr->pixbuf && gdk_pixbuf_get_has_alpha(pr->pixbuf));
2517 box = GTK_WIDGET(pr);
2519 /* FIXME checker colors for alpha should be configurable,
2520 * also should be drawn for blank = TRUE
2525 /* no data, do fast rect fill */
2526 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
2527 0, 0, it->w, it->h);
2529 else if (pr->source_tiles_enabled)
2531 draw = pr_source_tile_render(pr, it, x, y, w, h, new_data, fast);
2533 else if (pr->zoom == 1.0 || pr->scale == 1.0)
2536 gdouble src_x, src_y;
2539 pr_tile_coords_map_orientation(pr, it->x, it->y,
2540 pr->image_width, pr->image_height,
2541 pr->tile_width, pr->tile_height,
2543 pr_tile_region_map_orientation(pr, x, y,
2544 pr->tile_width, pr->tile_height,
2551 gdk_pixbuf_composite_color(pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
2552 (gdouble) 0.0 - src_x,
2553 (gdouble) 0.0 - src_y,
2554 1.0, 1.0, GDK_INTERP_NEAREST,
2555 255, it->x + pb_x, it->y + pb_y,
2556 PR_ALPHA_CHECK_SIZE, PR_ALPHA_CHECK1, PR_ALPHA_CHECK2);
2557 pr_tile_apply_orientation(pr, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
2564 if (pr->orientation == EXIF_ORIENTATION_TOP_LEFT && !(pr->func_post_process && !(pr->post_process_slow && fast)))
2566 /* faster, simple, base orientation, no postprocessing */
2567 gdk_draw_pixbuf(it->pixmap,
2568 box->style->fg_gc[GTK_WIDGET_STATE(box)],
2570 it->x + x, it->y + y,
2573 pr->dither_quality, it->x + x, it->y + y);
2577 gdk_pixbuf_copy_area(pr->pixbuf,
2578 src_x + pb_x, src_y + pb_y,
2582 pr_tile_apply_orientation(pr, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
2589 gdouble scale_x, scale_y;
2590 gdouble src_x, src_y;
2594 if (pr->image_width == 0 || pr->image_height == 0) return;
2596 scale_x = (gdouble)pr->width / pr->image_width;
2597 scale_y = (gdouble)pr->height / pr->image_height;
2599 pr_tile_coords_map_orientation(pr, it->x / scale_x, it->y /scale_y ,
2600 pr->image_width, pr->image_height,
2601 pr->tile_width / scale_x , pr->tile_height / scale_y,
2603 pr_tile_region_map_orientation(pr, x, y,
2604 pr->tile_width, pr->tile_height,
2609 /* HACK: The pixbuf scalers get kinda buggy(crash) with extremely
2610 * small sizes for anything but GDK_INTERP_NEAREST
2612 if (pr->width < PR_MIN_SCALE_SIZE || pr->height < PR_MIN_SCALE_SIZE) fast = TRUE;
2616 gdk_pixbuf_scale(pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
2617 (gdouble) 0.0 - src_x * scale_x,
2618 (gdouble) 0.0 - src_y * scale_y,
2620 (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality);
2624 gdk_pixbuf_composite_color(pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
2625 (gdouble) 0.0 - src_x * scale_x,
2626 (gdouble) 0.0 - src_y * scale_y,
2628 (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality,
2629 255, it->x + pb_x, it->y + pb_y,
2630 PR_ALPHA_CHECK_SIZE, PR_ALPHA_CHECK1, PR_ALPHA_CHECK2);
2632 pr_tile_apply_orientation(pr, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
2636 if (draw && it->pixbuf && !it->blank)
2639 if (pr->func_post_process && !(pr->post_process_slow && fast))
2640 pr->func_post_process(pr, &it->pixbuf, x, y, w, h, pr->post_process_user_data);
2642 gdk_draw_pixbuf(it->pixmap,
2643 box->style->fg_gc[GTK_WIDGET_STATE(box)],
2648 pr->dither_quality, it->x + x, it->y + y);
2652 /* enable this line for debugging the edges of tiles */
2653 gdk_draw_rectangle(it->pixmap, box->style->white_gc,
2654 FALSE, 0, 0, it->w, it->h);
2655 gdk_draw_rectangle(it->pixmap, box->style->white_gc,
2661 static void pr_tile_expose(PixbufRenderer *pr, ImageTile *it,
2662 gint x, gint y, gint w, gint h,
2663 gint new_data, gint fast)
2667 pr_tile_render(pr, it, x, y, w, h, new_data, fast);
2669 box = GTK_WIDGET(pr);
2671 gdk_draw_drawable(box->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
2673 pr->x_offset + (it->x - pr->x_scroll) + x, pr->y_offset + (it->y - pr->y_scroll) + y, w, h);
2675 if (pr->overlay_list)
2677 pr_overlay_draw(pr, pr->x_offset + (it->x - pr->x_scroll) + x,
2678 pr->y_offset + (it->y - pr->y_scroll) + y,
2685 static gint pr_tile_is_visible(PixbufRenderer *pr, ImageTile *it)
2687 return (it->x + it->w >= pr->x_scroll && it->x < pr->x_scroll + pr->vis_width &&
2688 it->y + it->h >= pr->y_scroll && it->y < pr->y_scroll + pr->vis_height);
2692 *-------------------------------------------------------------------
2694 *-------------------------------------------------------------------
2697 static gint pr_get_queued_area(GList *work)
2703 QueueData *qd = work->data;
2704 area += qd->w * qd->h;
2711 static gint pr_queue_schedule_next_draw(PixbufRenderer *pr, gboolean force_set)
2714 gint visible_area = pr->vis_width * pr->vis_height;
2719 DEBUG_2("redraw priority: 2pass");
2720 pr->draw_idle_id = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE, pr_queue_draw_idle_cb, pr, NULL);
2724 if (visible_area == 0)
2731 percent = 100.0 * pr_get_queued_area(pr->draw_queue) / visible_area;
2736 /* we have enough data for starting intensive redrawing */
2737 DEBUG_2("redraw priority: high %.2f %%", percent);
2738 pr->draw_idle_id = g_idle_add_full(GDK_PRIORITY_REDRAW, pr_queue_draw_idle_cb, pr, NULL);
2742 if (percent < 1.0 || force_set)
2744 /* queue is (almost) empty, wait 50 ms*/
2745 DEBUG_2("redraw priority: wait %.2f %%", percent);
2746 pr->draw_idle_id = g_timeout_add_full(G_PRIORITY_DEFAULT_IDLE, 50, pr_queue_draw_idle_cb, pr, NULL);
2750 /* keep the same priority as before */
2751 DEBUG_2("redraw priority: no change %.2f %%", percent);
2756 static gint pr_queue_draw_idle_cb(gpointer data)
2758 PixbufRenderer *pr = data;
2763 if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
2764 (!pr->draw_queue && !pr->draw_queue_2pass) ||
2765 pr->draw_idle_id == -1)
2767 pr_render_complete_signal(pr);
2769 pr->draw_idle_id = -1;
2775 qd = pr->draw_queue->data;
2776 fast = ((pr->zoom_2pass && pr->zoom_quality != GDK_INTERP_NEAREST && pr->scale != 1.0) || pr->post_process_slow);
2782 /* still loading, wait till done (also drops the higher priority) */
2784 return pr_queue_schedule_next_draw(pr, FALSE);
2787 qd = pr->draw_queue_2pass->data;
2791 if (GTK_WIDGET_REALIZED(pr))
2793 if (pr_tile_is_visible(pr, qd->it))
2795 pr_tile_expose(pr, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
2797 else if (qd->new_data)
2799 /* if new pixel data, and we already have a pixmap, update the tile */
2800 qd->it->blank = FALSE;
2801 if (qd->it->pixmap && qd->it->render_done == TILE_RENDER_ALL)
2803 pr_tile_render(pr, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
2811 pr->draw_queue = g_list_remove(pr->draw_queue, qd);
2816 pr_queue_merge(qd->it->qd2, qd);
2822 pr->draw_queue_2pass = g_list_append(pr->draw_queue_2pass, qd);
2833 pr->draw_queue_2pass = g_list_remove(pr->draw_queue_2pass, qd);
2837 if (!pr->draw_queue && !pr->draw_queue_2pass)
2839 pr_render_complete_signal(pr);
2841 pr->draw_idle_id = -1;
2845 return pr_queue_schedule_next_draw(pr, FALSE);
2848 static void pr_queue_list_free(GList *list)
2868 static void pr_queue_clear(PixbufRenderer *pr)
2870 pr_queue_list_free(pr->draw_queue);
2871 pr->draw_queue = NULL;
2873 pr_queue_list_free(pr->draw_queue_2pass);
2874 pr->draw_queue_2pass = NULL;
2876 if (pr->draw_idle_id != -1) g_source_remove(pr->draw_idle_id);
2877 pr->draw_idle_id = -1;
2880 static void pr_queue_merge(QueueData *parent, QueueData *qd)
2882 if (parent->x + parent->w < qd->x + qd->w)
2884 parent->w += (qd->x + qd->w) - (parent->x + parent->w);
2886 if (parent->x > qd->x)
2888 parent->w += parent->x - qd->x;
2892 if (parent->y + parent->h < qd->y + qd->h)
2894 parent->h += (qd->y + qd->h) - (parent->y + parent->h);
2896 if (parent->y > qd->y)
2898 parent->h += parent->y - qd->y;
2902 parent->new_data |= qd->new_data;
2905 static gint pr_clamp_to_visible(PixbufRenderer *pr, gint *x, gint *y, gint *w, gint *h)
2913 vh = pr->vis_height;
2918 if (*x + *w < vx || *x > vx + vw || *y + *h < vy || *y > vy + vh) return FALSE;
2921 nx = CLAMP(*x, vx, vx + vw);
2922 nw = CLAMP(*w - (nx - *x), 1, vw);
2924 ny = CLAMP(*y, vy, vy + vh);
2925 nh = CLAMP(*h - (ny - *y), 1, vh);
2935 static gint pr_queue_to_tiles(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
2936 gint clamp, ImageTileRenderType render, gint new_data, gint only_existing)
2942 if (clamp && !pr_clamp_to_visible(pr, &x, &y, &w, &h)) return FALSE;
2944 x1 = (gint)floor(x / pr->tile_width) * pr->tile_width;
2945 x2 = (gint)ceil((x + w) / pr->tile_width) * pr->tile_width;
2947 y1 = (gint)floor(y / pr->tile_height) * pr->tile_height;
2948 y2 = (gint)ceil((y + h) / pr->tile_height) * pr->tile_height;
2950 for (j = y1; j <= y2; j += pr->tile_height)
2952 for (i = x1; i <= x2; i += pr->tile_width)
2956 it = pr_tile_get(pr, i, j,
2958 (i + pr->tile_width < pr->x_scroll ||
2959 i > pr->x_scroll + pr->vis_width ||
2960 j + pr->tile_height < pr->y_scroll ||
2961 j > pr->y_scroll + pr->vis_height)));
2966 if ((render == TILE_RENDER_ALL && it->render_done != TILE_RENDER_ALL) ||
2967 (render == TILE_RENDER_AREA && it->render_todo != TILE_RENDER_ALL))
2969 it->render_todo = render;
2972 qd = g_new(QueueData, 1);
2974 qd->new_data = new_data;
2984 qd->w = x + w - i - qd->x;
2985 if (qd->x + qd->w > pr->tile_width) qd->w = pr->tile_width - qd->x;
2995 qd->h = y + h - j - qd->y;
2996 if (qd->y + qd->h > pr->tile_height) qd->h = pr->tile_height - qd->y;
2998 if (qd->w < 1 || qd->h < 1)
3004 pr_queue_merge(it->qd, qd);
3010 pr->draw_queue = g_list_append(pr->draw_queue, qd);
3019 static void pr_queue(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
3020 gint clamp, ImageTileRenderType render, gint new_data, gint only_existing)
3024 nx = CLAMP(x, 0, pr->width - 1);
3025 ny = CLAMP(y, 0, pr->height - 1);
3028 w = CLAMP(w, 0, pr->width - nx);
3029 h = CLAMP(h, 0, pr->height - ny);
3030 if (w < 1 || h < 1) return;
3032 if (pr_queue_to_tiles(pr, nx, ny, w, h, clamp, render, new_data, only_existing) &&
3033 ((!pr->draw_queue && !pr->draw_queue_2pass) || pr->draw_idle_id == -1))
3035 if (pr->draw_idle_id != -1) g_source_remove(pr->draw_idle_id);
3036 pr_queue_schedule_next_draw(pr, TRUE);
3040 static void pr_redraw(PixbufRenderer *pr, gint new_data)
3043 pr_queue(pr, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, new_data, FALSE);
3047 *-------------------------------------------------------------------
3049 *-------------------------------------------------------------------
3052 static void pr_update_signal(PixbufRenderer *pr)
3055 log_printf("FIXME: send updated signal\n");
3057 DEBUG_1("%s pixbuf renderer updated - started drawing %p", get_exec_time(), pr);
3058 pr->debug_updated = TRUE;
3061 static void pr_zoom_signal(PixbufRenderer *pr)
3063 g_signal_emit(pr, signals[SIGNAL_ZOOM], 0, pr->zoom);
3066 static void pr_clicked_signal(PixbufRenderer *pr, GdkEventButton *bevent)
3068 g_signal_emit(pr, signals[SIGNAL_CLICKED], 0, bevent);
3071 static void pr_scroll_notify_signal(PixbufRenderer *pr)
3073 g_signal_emit(pr, signals[SIGNAL_SCROLL_NOTIFY], 0);
3076 static void pr_render_complete_signal(PixbufRenderer *pr)
3080 g_signal_emit(pr, signals[SIGNAL_RENDER_COMPLETE], 0);
3081 g_object_set(G_OBJECT(pr), "complete", TRUE, NULL);
3083 if (pr->debug_updated)
3085 DEBUG_1("%s pixbuf renderer done %p", get_exec_time(), pr);
3086 pr->debug_updated = FALSE;
3090 static void pr_drag_signal(PixbufRenderer *pr, GdkEventButton *bevent)
3092 g_signal_emit(pr, signals[SIGNAL_DRAG], 0, bevent);
3096 *-------------------------------------------------------------------
3098 *-------------------------------------------------------------------
3101 static void pixbuf_renderer_sync_scroll_center(PixbufRenderer *pr)
3104 if (!pr->width || !pr->height) return;
3106 src_x = pr->x_scroll + pr->vis_width / 2;
3107 src_y = pr->y_scroll + pr->vis_height / 2;
3109 pr->norm_center_x = (gdouble)src_x / pr->width;
3110 pr->norm_center_y = (gdouble)src_y / pr->height;
3114 static gint pr_scroll_clamp(PixbufRenderer *pr)
3119 if (pr->zoom == 0.0)
3127 old_xs = pr->x_scroll;
3128 old_ys = pr->y_scroll;
3130 if (pr->x_offset > 0)
3136 pr->x_scroll = CLAMP(pr->x_scroll, 0, pr->width - pr->vis_width);
3139 if (pr->y_offset > 0)
3145 pr->y_scroll = CLAMP(pr->y_scroll, 0, pr->height - pr->vis_height);
3148 pixbuf_renderer_sync_scroll_center(pr);
3150 return (old_xs != pr->x_scroll || old_ys != pr->y_scroll);
3153 static gint pr_size_clamp(PixbufRenderer *pr)
3155 gint old_vw, old_vh;
3157 old_vw = pr->vis_width;
3158 old_vh = pr->vis_height;
3160 if (pr->width < pr->window_width)
3162 pr->vis_width = pr->width;
3163 pr->x_offset = (pr->window_width - pr->width) / 2;
3167 pr->vis_width = pr->window_width;
3171 if (pr->height < pr->window_height)
3173 pr->vis_height = pr->height;
3174 pr->y_offset = (pr->window_height - pr->height) / 2;
3178 pr->vis_height = pr->window_height;
3182 pixbuf_renderer_sync_scroll_center(pr);
3184 return (old_vw != pr->vis_width || old_vh != pr->vis_height);
3187 static gint pr_zoom_clamp(PixbufRenderer *pr, gdouble zoom,
3188 PrZoomFlags flags, gboolean *redrawn)
3193 gboolean force = !!(flags & PR_ZOOM_FORCE);
3194 gboolean new = !!(flags & PR_ZOOM_NEW);
3195 gboolean invalidate = !!(flags & PR_ZOOM_INVALIDATE);
3196 gboolean lazy = !!(flags & PR_ZOOM_LAZY);
3198 zoom = CLAMP(zoom, pr->zoom_min, pr->zoom_max);
3200 if (pr->zoom == zoom && !force) return FALSE;
3202 w = pr->image_width;
3203 h = pr->image_height;
3205 if (zoom == 0.0 && !pr->pixbuf)
3209 else if (zoom == 0.0)
3215 sizeable = (new && pr_parent_window_sizable(pr));
3219 max_w = gdk_screen_width();
3220 max_h = gdk_screen_height();
3222 if (pr->window_limit)
3224 max_w = max_w * pr->window_limit_size / 100;
3225 max_h = max_h * pr->window_limit_size / 100;
3230 max_w = pr->window_width;
3231 max_h = pr->window_height;
3234 if ((pr->zoom_expand && !sizeable) || w > max_w || h > max_h)
3236 if ((gdouble)max_w / w > (gdouble)max_h / h)
3238 scale = (gdouble)max_h / h;
3240 w = w * scale + 0.5;
3241 if (w > max_w) w = max_w;
3245 scale = (gdouble)max_w / w;
3247 h = h * scale + 0.5;
3248 if (h > max_h) h = max_h;
3251 if (pr->autofit_limit)
3253 gdouble factor = (gdouble)pr->autofit_limit_size / 100;
3254 w = w * factor + 0.5;
3255 h = h * factor + 0.5;
3256 scale = scale * factor;
3267 else if (zoom > 0.0) /* zoom orig, in */
3275 scale = 1.0 / (0.0 - zoom);
3280 invalid = (pr->width != w || pr->height != h);
3287 if (invalidate || invalid)
3289 pr_tile_invalidate_all(pr);
3290 if (!lazy) pr_redraw(pr, TRUE);
3292 if (redrawn) *redrawn = (invalidate || invalid);
3294 pixbuf_renderer_sync_scroll_center(pr);
3299 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
3300 PrZoomFlags flags, gint px, gint py)
3303 gint old_cx, old_cy;
3306 gboolean redrawn = FALSE;
3307 gboolean center_point = !!(flags & PR_ZOOM_CENTER);
3308 gboolean force = !!(flags & PR_ZOOM_FORCE);
3309 gboolean new = !!(flags & PR_ZOOM_NEW);
3310 gboolean lazy = !!(flags & PR_ZOOM_LAZY);
3311 PrZoomFlags clamp_flags = flags;
3312 gdouble old_center_x = pr->norm_center_x;
3313 gdouble old_center_y = pr->norm_center_y;
3315 old_scale = pr->scale;
3318 px = CLAMP(px, 0, pr->width);
3319 py = CLAMP(py, 0, pr->height);
3320 old_cx = pr->x_scroll + (px - pr->x_offset);
3321 old_cy = pr->y_scroll + (py - pr->y_offset);
3326 old_cx = pr->x_scroll + pr->vis_width / 2;
3327 old_cy = pr->y_scroll + pr->vis_height / 2;
3330 if (force) clamp_flags |= PR_ZOOM_INVALIDATE;
3331 if (lazy) clamp_flags |= PR_ZOOM_LAZY;
3332 if (!pr_zoom_clamp(pr, zoom, clamp_flags, &redrawn)) return;
3334 clamped = pr_size_clamp(pr);
3335 sized = pr_parent_window_resize(pr, pr->width, pr->height);
3339 switch (pr->scroll_reset)
3341 case PR_SCROLL_RESET_NOCHANGE:
3342 /* maintain old scroll position */
3343 pr->x_scroll = ((gdouble)pr->image_width * old_center_x * pr->scale) - pr->vis_width / 2;
3344 pr->y_scroll = ((gdouble)pr->image_height * old_center_y * pr->scale) - pr->vis_height / 2;
3346 case PR_SCROLL_RESET_CENTER:
3347 /* center new image */
3348 pr->x_scroll = ((gdouble)pr->image_width / 2.0 * pr->scale) - pr->vis_width / 2;
3349 pr->y_scroll = ((gdouble)pr->image_height / 2.0 * pr->scale) - pr->vis_height / 2;
3351 case PR_SCROLL_RESET_TOPLEFT:
3353 /* reset to upper left */
3361 /* user zoom does not force, so keep visible center point */
3364 pr->x_scroll = old_cx / old_scale * pr->scale - (px - pr->x_offset);
3365 pr->y_scroll = old_cy / old_scale * pr->scale - (py - pr->y_offset);
3369 pr->x_scroll = old_cx / old_scale * pr->scale - (pr->vis_width / 2);
3370 pr->y_scroll = old_cy / old_scale * pr->scale - (pr->vis_height / 2);
3374 pr_scroll_clamp(pr);
3376 /* If the window was not sized, redraw the image - we know there will be no size/expose signal.
3377 * But even if a size is claimed, there is no guarantee that the window manager will allow it,
3378 * so redraw the window anyway :/
3380 if (sized || clamped) pr_border_clear(pr);
3388 pr_redraw(pr, redrawn);
3391 pr_scroll_notify_signal(pr);
3393 pr_update_signal(pr);
3396 static void pr_size_sync(PixbufRenderer *pr, gint new_width, gint new_height)
3398 gint zoom_changed = FALSE;
3400 if (pr->window_width == new_width && pr->window_height == new_height) return;
3402 pr->window_width = new_width;
3403 pr->window_height = new_height;
3405 if (pr->zoom == 0.0)
3407 gdouble old_scale = pr->scale;
3408 pr_zoom_clamp(pr, 0.0, PR_ZOOM_FORCE, NULL);
3409 zoom_changed = (old_scale != pr->scale);
3413 pr_scroll_clamp(pr);
3415 pr_overlay_update_sizes(pr);
3417 /* ensure scroller remains visible */
3418 if (pr->scroller_overlay != -1)
3420 gint update = FALSE;
3422 if (pr->scroller_x > new_width)
3424 pr->scroller_x = new_width;
3425 pr->scroller_xpos = new_width;
3428 if (pr->scroller_y > new_height)
3430 pr->scroller_y = new_height;
3431 pr->scroller_ypos = new_height;
3439 if (pixbuf_renderer_overlay_get(pr, pr->scroller_overlay, &pixbuf, NULL, NULL))
3443 w = gdk_pixbuf_get_width(pixbuf);
3444 h = gdk_pixbuf_get_height(pixbuf);
3445 pixbuf_renderer_overlay_set(pr, pr->scroller_overlay, pixbuf,
3446 pr->scroller_x - w / 2, pr->scroller_y - h / 2);
3451 pr_border_clear(pr);
3453 pr_scroll_notify_signal(pr);
3454 if (zoom_changed) pr_zoom_signal(pr);
3455 pr_update_signal(pr);
3458 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
3460 PixbufRenderer *pr = data;
3462 pr_size_sync(pr, allocation->width, allocation->height);
3465 static void pixbuf_renderer_paint(PixbufRenderer *pr, GdkRectangle *area)
3469 pr_border_draw(pr, area->x, area->y, area->width, area->height);
3471 x = MAX(0, (gint)area->x - pr->x_offset + pr->x_scroll);
3472 y = MAX(0, (gint)area->y - pr->y_offset + pr->y_scroll);
3475 MIN((gint)area->width, pr->width - x),
3476 MIN((gint)area->height, pr->height - y),
3477 FALSE, TILE_RENDER_ALL, FALSE, FALSE);
3481 *-------------------------------------------------------------------
3483 *-------------------------------------------------------------------
3486 void pixbuf_renderer_scroll(PixbufRenderer *pr, gint x, gint y)
3492 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3494 if (!pr->pixbuf && !pr->source_tiles_enabled) return;
3496 old_x = pr->x_scroll;
3497 old_y = pr->y_scroll;
3502 pr_scroll_clamp(pr);
3504 pixbuf_renderer_sync_scroll_center(pr);
3506 if (pr->x_scroll == old_x && pr->y_scroll == old_y) return;
3508 pr_scroll_notify_signal(pr);
3510 x_off = pr->x_scroll - old_x;
3511 y_off = pr->y_scroll - old_y;
3513 w = pr->vis_width - abs(x_off);
3514 h = pr->vis_height - abs(y_off);
3518 /* scrolled completely to new material */
3519 pr_queue(pr, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
3552 box = GTK_WIDGET(pr);
3554 gc = gdk_gc_new(box->window);
3555 gdk_gc_set_exposures(gc, TRUE);
3556 gdk_draw_drawable(box->window, gc,
3558 x2 + pr->x_offset, y2 + pr->y_offset,
3559 x1 + pr->x_offset, y1 + pr->y_offset, w, h);
3562 if (pr->overlay_list)
3564 pr_overlay_queue_all(pr);
3567 w = pr->vis_width - w;
3568 h = pr->vis_height - h;
3573 x_off > 0 ? pr->x_scroll + (pr->vis_width - w) : pr->x_scroll, pr->y_scroll,
3574 w, pr->vis_height, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
3578 /* FIXME, to optimize this, remove overlap */
3580 pr->x_scroll, y_off > 0 ? pr->y_scroll + (pr->vis_height - h) : pr->y_scroll,
3581 pr->vis_width, h, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
3584 /* process exposures here, "expose_event" seems to miss a few with obstructed windows */
3585 while ((event = gdk_event_get_graphics_expose(box->window)) != NULL)
3587 pixbuf_renderer_paint(pr, &event->expose.area);
3589 if (event->expose.count == 0)
3591 gdk_event_free(event);
3594 gdk_event_free(event);
3599 void pixbuf_renderer_scroll_to_point(PixbufRenderer *pr, gint x, gint y,
3600 gdouble x_align, gdouble y_align)
3605 x_align = CLAMP(x_align, 0.0, 1.0);
3606 y_align = CLAMP(y_align, 0.0, 1.0);
3608 ax = (gdouble)pr->vis_width * x_align;
3609 ay = (gdouble)pr->vis_height * y_align;
3611 px = (gdouble)x * pr->scale - (pr->x_scroll + ax);
3612 py = (gdouble)y * pr->scale - (pr->y_scroll + ay);
3614 pixbuf_renderer_scroll(pr, px, py);
3617 /* get or set coordinates of viewport center in the image, in range 0.0 - 1.0 */
3619 void pixbuf_renderer_get_scroll_center(PixbufRenderer *pr, gdouble *x, gdouble *y)
3621 *x = pr->norm_center_x;
3622 *y = pr->norm_center_y;
3625 void pixbuf_renderer_set_scroll_center(PixbufRenderer *pr, gdouble x, gdouble y)
3627 gdouble dst_x, dst_y;
3629 dst_x = x * pr->width - pr->vis_width / 2 - pr->x_scroll + CLAMP(pr->subpixel_x_scroll, -1.0, 1.0);
3630 dst_y = y * pr->height - pr->vis_height / 2 - pr->y_scroll + CLAMP(pr->subpixel_y_scroll, -1.0, 1.0);
3632 pr->subpixel_x_scroll = dst_x - (gint)dst_x;
3633 pr->subpixel_y_scroll = dst_y - (gint)dst_y;
3635 pixbuf_renderer_scroll(pr, (gint)dst_x, (gint)dst_y);
3640 *-------------------------------------------------------------------
3642 *-------------------------------------------------------------------
3645 static gint pr_mouse_motion_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
3650 pr = PIXBUF_RENDERER(widget);
3652 if (pr->scroller_id != -1)
3654 pr->scroller_xpos = bevent->x;
3655 pr->scroller_ypos = bevent->y;
3658 if (!pr->in_drag || !gdk_pointer_is_grabbed()) return FALSE;
3660 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
3666 widget_set_cursor(widget, GDK_FLEUR);
3669 if (bevent->state & GDK_CONTROL_MASK)
3671 accel = PR_PAN_SHIFT_MULTIPLIER;
3679 pixbuf_renderer_scroll(pr, (pr->drag_last_x - bevent->x) * accel,
3680 (pr->drag_last_y - bevent->y) * accel);
3682 pr_drag_signal(pr, bevent);
3684 pr->drag_last_x = bevent->x;
3685 pr->drag_last_y = bevent->y;
3690 static gint pr_mouse_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
3695 pr = PIXBUF_RENDERER(widget);
3697 if (pr->scroller_id != -1) return TRUE;
3699 switch (bevent->button)
3701 case MOUSE_BUTTON_LEFT:
3703 pr->drag_last_x = bevent->x;
3704 pr->drag_last_y = bevent->y;
3706 gdk_pointer_grab(widget->window, FALSE,
3707 GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
3708 NULL, NULL, bevent->time);
3709 gtk_grab_add(widget);
3711 case MOUSE_BUTTON_MIDDLE:
3714 case MOUSE_BUTTON_RIGHT:
3715 pr_clicked_signal(pr, bevent);
3721 parent = gtk_widget_get_parent(widget);
3722 if (widget && GTK_WIDGET_CAN_FOCUS(parent))
3724 gtk_widget_grab_focus(parent);
3730 static gint pr_mouse_release_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
3734 pr = PIXBUF_RENDERER(widget);
3736 if (pr->scroller_id != -1)
3738 pr_scroller_stop(pr);
3742 if (gdk_pointer_is_grabbed() && GTK_WIDGET_HAS_GRAB(pr))
3744 gtk_grab_remove(widget);
3745 gdk_pointer_ungrab(bevent->time);
3746 widget_set_cursor(widget, -1);
3749 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
3751 if (bevent->button == MOUSE_BUTTON_LEFT && (bevent->state & GDK_CONTROL_MASK))
3753 pr_scroller_start(pr, bevent->x, bevent->y);
3755 else if (bevent->button == MOUSE_BUTTON_LEFT || bevent->button == MOUSE_BUTTON_MIDDLE)
3757 pr_clicked_signal(pr, bevent);
3761 pr->in_drag = FALSE;
3766 static gint pr_mouse_leave_cb(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
3770 pr = PIXBUF_RENDERER(widget);
3772 if (pr->scroller_id != -1)
3774 pr->scroller_xpos = pr->scroller_x;
3775 pr->scroller_ypos = pr->scroller_y;
3776 pr->scroller_xinc = 0;
3777 pr->scroller_yinc = 0;
3783 static void pr_mouse_drag_cb(GtkWidget *widget, GdkDragContext *context, gpointer data)
3787 pr = PIXBUF_RENDERER(widget);
3789 pr->drag_moved = PR_DRAG_SCROLL_THRESHHOLD;
3792 static void pr_signals_connect(PixbufRenderer *pr)
3794 g_signal_connect(G_OBJECT(pr), "motion_notify_event",
3795 G_CALLBACK(pr_mouse_motion_cb), pr);
3796 g_signal_connect(G_OBJECT(pr), "button_press_event",
3797 G_CALLBACK(pr_mouse_press_cb), pr);
3798 g_signal_connect(G_OBJECT(pr), "button_release_event",
3799 G_CALLBACK(pr_mouse_release_cb), pr);
3800 g_signal_connect(G_OBJECT(pr), "leave_notify_event",
3801 G_CALLBACK(pr_mouse_leave_cb), pr);
3803 gtk_widget_set_events(GTK_WIDGET(pr), GDK_POINTER_MOTION_MASK |
3804 GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
3805 GDK_LEAVE_NOTIFY_MASK);
3807 g_signal_connect(G_OBJECT(pr), "drag_begin",
3808 G_CALLBACK(pr_mouse_drag_cb), pr);
3813 *-------------------------------------------------------------------
3815 *-------------------------------------------------------------------
3817 static void pr_pixbuf_size_sync(PixbufRenderer *pr)
3819 if (!pr->pixbuf) return;
3820 switch (pr->orientation)
3822 case EXIF_ORIENTATION_LEFT_TOP:
3823 case EXIF_ORIENTATION_RIGHT_TOP:
3824 case EXIF_ORIENTATION_RIGHT_BOTTOM:
3825 case EXIF_ORIENTATION_LEFT_BOTTOM:
3826 pr->image_width = gdk_pixbuf_get_height(pr->pixbuf);
3827 pr->image_height = gdk_pixbuf_get_width(pr->pixbuf);
3830 pr->image_width = gdk_pixbuf_get_width(pr->pixbuf);
3831 pr->image_height = gdk_pixbuf_get_height(pr->pixbuf);
3835 static void pr_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, PrZoomFlags flags)
3837 if (pixbuf) g_object_ref(pixbuf);
3838 if (pr->pixbuf) g_object_unref(pr->pixbuf);
3839 pr->pixbuf = pixbuf;
3845 /* no pixbuf so just clear the window */
3846 pr->image_width = 0;
3847 pr->image_height = 0;
3850 box = GTK_WIDGET(pr);
3852 if (GTK_WIDGET_REALIZED(box))
3854 gdk_window_clear(box->window);
3855 pr_overlay_draw(pr, 0, 0, pr->window_width, pr->window_height, NULL);
3858 pr_update_signal(pr);
3863 pr_pixbuf_size_sync(pr);
3864 pr_zoom_sync(pr, zoom, flags | PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
3867 void pixbuf_renderer_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom)
3869 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3871 pr_source_tile_unset(pr);
3873 pr_set_pixbuf(pr, pixbuf, zoom, 0);
3875 pr_update_signal(pr);
3878 void pixbuf_renderer_set_pixbuf_lazy(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, gint orientation)
3880 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3882 pr_source_tile_unset(pr);
3884 pr->orientation = orientation;
3885 pr_set_pixbuf(pr, pixbuf, zoom, PR_ZOOM_LAZY);
3887 pr_update_signal(pr);
3890 GdkPixbuf *pixbuf_renderer_get_pixbuf(PixbufRenderer *pr)
3892 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
3897 void pixbuf_renderer_set_orientation(PixbufRenderer *pr, gint orientation)
3899 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3901 pr->orientation = orientation;
3903 pr_pixbuf_size_sync(pr);
3904 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
3907 gint pixbuf_renderer_get_orientation(PixbufRenderer *pr)
3910 return pr->orientation;
3913 void pixbuf_renderer_set_post_process_func(PixbufRenderer *pr, PixbufRendererPostProcessFunc func, gpointer user_data, gint slow)
3915 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3917 pr->func_post_process = func;
3918 pr->post_process_user_data = user_data;
3919 pr->post_process_slow = func && slow;
3924 void pixbuf_renderer_move(PixbufRenderer *pr, PixbufRenderer *source)
3927 PixbufRendererScrollResetType scroll_reset;
3929 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3930 g_return_if_fail(IS_PIXBUF_RENDERER(source));
3932 if (pr == source) return;
3934 object = G_OBJECT(pr);
3936 g_object_set(object, "zoom_min", source->zoom_min, NULL);
3937 g_object_set(object, "zoom_max", source->zoom_max, NULL);
3938 g_object_set(object, "loading", source->loading, NULL);
3940 pr->complete = source->complete;
3942 pr->x_scroll = source->x_scroll;
3943 pr->y_scroll = source->y_scroll;
3945 scroll_reset = pr->scroll_reset;
3946 pr->scroll_reset = PR_SCROLL_RESET_NOCHANGE;
3948 pr->func_post_process = source->func_post_process;
3949 pr->post_process_user_data = source->post_process_user_data;
3950 pr->post_process_slow = source->post_process_slow;
3951 pr->orientation = source->orientation;
3953 if (source->source_tiles_enabled)
3955 pr_source_tile_unset(pr);
3957 pr->source_tiles_enabled = source->source_tiles_enabled;
3958 pr->source_tiles_cache_size = source->source_tiles_cache_size;
3959 pr->source_tile_width = source->source_tile_width;
3960 pr->source_tile_height = source->source_tile_height;
3961 pr->image_width = source->image_width;
3962 pr->image_height = source->image_height;
3964 pr->func_tile_request = source->func_tile_request;
3965 pr->func_tile_dispose = source->func_tile_dispose;
3966 pr->func_tile_data = source->func_tile_data;
3968 pr->source_tiles = source->source_tiles;
3969 source->source_tiles = NULL;
3971 pr_zoom_sync(pr, source->zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
3972 pr_redraw(pr, TRUE);
3976 pixbuf_renderer_set_pixbuf(pr, source->pixbuf, source->zoom);
3979 pr->scroll_reset = scroll_reset;
3981 pixbuf_renderer_set_pixbuf(source, NULL, source->zoom);
3982 pr_queue_clear(source);
3983 pr_tile_free_all(source);
3986 void pixbuf_renderer_area_changed(PixbufRenderer *pr, gint src_x, gint src_y, gint src_w, gint src_h)
3988 gint x, y, width, height, x1, y1, x2, y2;
3990 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3992 pr_coords_map_orientation_reverse(pr,
3994 pr->image_width, pr->image_height,
3999 if (pr->source_tiles_enabled)
4001 pr_source_tile_changed(pr, x, y, width, height);
4004 if (pr->scale != 1.0 && pr->zoom_quality != GDK_INTERP_NEAREST)
4006 /* increase region when using a zoom quality that may access surrounding pixels */
4011 x1 = (gint)floor((gdouble)x * pr->scale);
4012 y1 = (gint)floor((gdouble)y * pr->scale);
4013 x2 = (gint)ceil((gdouble)(x + width) * pr->scale);
4014 y2 = (gint)ceil((gdouble)(y + height) * pr->scale);
4016 pr_queue(pr, x1, y1, x2 - x1, y2 - y1, FALSE, TILE_RENDER_AREA, TRUE, TRUE);
4019 void pixbuf_renderer_zoom_adjust(PixbufRenderer *pr, gdouble increment)
4021 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
4023 pr_zoom_adjust_real(pr, increment, PR_ZOOM_NONE, 0, 0);
4026 void pixbuf_renderer_zoom_adjust_at_point(PixbufRenderer *pr, gdouble increment, gint x, gint y)
4028 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
4030 pr_zoom_adjust_real(pr, increment, PR_ZOOM_CENTER, x, y);
4033 void pixbuf_renderer_zoom_set(PixbufRenderer *pr, gdouble zoom)
4035 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
4037 pr_zoom_sync(pr, zoom, PR_ZOOM_NONE, 0, 0);
4040 gdouble pixbuf_renderer_zoom_get(PixbufRenderer *pr)
4042 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
4047 gdouble pixbuf_renderer_zoom_get_scale(PixbufRenderer *pr)
4049 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
4054 void pixbuf_renderer_zoom_set_limits(PixbufRenderer *pr, gdouble min, gdouble max)
4056 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
4058 if (min > 1.0 || max < 1.0) return;
4059 if (min < 1.0 && min > -1.0) return;
4060 if (min < -200.0 || max > 200.0) return;
4062 if (pr->zoom_min != min)
4065 g_object_notify(G_OBJECT(pr), "zoom_min");
4067 if (pr->zoom_max != max)
4070 g_object_notify(G_OBJECT(pr), "zoom_max");
4074 gint pixbuf_renderer_get_image_size(PixbufRenderer *pr, gint *width, gint *height)
4076 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
4077 g_return_val_if_fail(width != NULL && height != NULL, FALSE);
4079 if (!pr->pixbuf && !pr->source_tiles_enabled)
4086 *width = pr->image_width;
4087 *height = pr->image_height;
4091 gint pixbuf_renderer_get_scaled_size(PixbufRenderer *pr, gint *width, gint *height)
4093 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
4094 g_return_val_if_fail(width != NULL && height != NULL, FALSE);
4096 if (!pr->pixbuf && !pr->source_tiles_enabled)
4104 *height = pr->height;
4108 gint pixbuf_renderer_get_visible_rect(PixbufRenderer *pr, GdkRectangle *rect)
4110 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
4111 g_return_val_if_fail(rect != NULL, FALSE);
4113 if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
4123 rect->x = (gint)((gdouble)pr->x_scroll / pr->scale);
4124 rect->y = (gint)((gdouble)pr->y_scroll / pr->scale);
4125 rect->width = (gint)((gdouble)pr->vis_width / pr->scale);
4126 rect->height = (gint)((gdouble)pr->vis_height / pr->scale);
4130 gint pixbuf_renderer_get_virtual_rect(PixbufRenderer *pr, GdkRectangle *rect)
4132 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
4133 g_return_val_if_fail(rect != NULL, FALSE);
4135 if ((!pr->pixbuf && !pr->source_tiles_enabled))
4144 rect->x = pr->x_scroll;
4145 rect->y = pr->y_scroll;
4146 rect->width = pr->vis_width;
4147 rect->height = pr->vis_height;
4150 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */