2 * Copyright (C) 2006 John Ellis
3 * Copyright (C) 2008 - 2016 The Geeqie Team
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include "pixbuf-renderer.h"
31 #include "main-defines.h"
33 #include "renderer-tiles.h"
35 /* comment this out if not using this from within Geeqie
36 * defining GQ_BUILD does these things:
37 * - Sets the shift-click scroller pixbuf to a nice icon instead of a black box
42 #include "pixbuf-util.h"
45 enum ExifOrientationType {
46 EXIF_ORIENTATION_UNKNOWN = 0,
47 EXIF_ORIENTATION_TOP_LEFT = 1,
48 EXIF_ORIENTATION_TOP_RIGHT = 2,
49 EXIF_ORIENTATION_BOTTOM_RIGHT = 3,
50 EXIF_ORIENTATION_BOTTOM_LEFT = 4,
51 EXIF_ORIENTATION_LEFT_TOP = 5,
52 EXIF_ORIENTATION_RIGHT_TOP = 6,
53 EXIF_ORIENTATION_RIGHT_BOTTOM = 7,
54 EXIF_ORIENTATION_LEFT_BOTTOM = 8
59 /* default min and max zoom */
60 #define PR_ZOOM_MIN (-32.0)
61 #define PR_ZOOM_MAX 32.0
63 /* distance to drag mouse to disable image flip */
65 PR_DRAG_SCROLL_THRESHHOLD = 4
68 /* increase pan rate when holding down shift */
70 PR_PAN_SHIFT_MULTIPLIER = 6
75 PR_SCROLLER_UPDATES_PER_SEC = 30,
76 PR_SCROLLER_DEAD_ZONE = 6
79 /* when scaling image to below this size, use nearest pixel for scaling
80 * (below about 4, the other scale types become slow generating their conversion tables)
83 //~ PR_MIN_SCALE_SIZE = 8
90 SIGNAL_RENDER_COMPLETE,
107 PROP_CACHE_SIZE_DISPLAY,
108 PROP_CACHE_SIZE_TILES,
111 PROP_WINDOW_LIMIT_VALUE,
113 PROP_AUTOFIT_LIMIT_VALUE,
114 PROP_ENLARGEMENT_LIMIT_VALUE
119 PR_ZOOM_FORCE = 1 << 0,
120 PR_ZOOM_NEW = 1 << 1,
121 PR_ZOOM_CENTER = 1 << 2,
122 PR_ZOOM_INVALIDATE = 1 << 3,
123 PR_ZOOM_LAZY = 1 << 4 /* wait with redraw for pixbuf_renderer_area_changed */
126 static guint signals[SIGNAL_COUNT] = { 0 };
127 static GtkEventBoxClass *parent_class = nullptr;
131 static void pixbuf_renderer_class_init(PixbufRendererClass *renderer_class);
132 static void pixbuf_renderer_init(PixbufRenderer *pr);
133 static void pixbuf_renderer_finalize(GObject *object);
134 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
135 const GValue *value, GParamSpec *pspec);
136 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
137 GValue *value, GParamSpec *pspec);
138 static void pr_scroller_timer_set(PixbufRenderer *pr, gboolean start);
141 static void pr_source_tile_free_all(PixbufRenderer *pr);
143 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
144 PrZoomFlags flags, gint px, gint py);
146 static void pr_signals_connect(PixbufRenderer *pr);
147 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data);
148 static void pr_stereo_temp_disable(PixbufRenderer *pr, gboolean disable);
152 *-------------------------------------------------------------------
153 * Pixbuf Renderer object
154 *-------------------------------------------------------------------
157 static void pixbuf_renderer_class_init_wrapper(void *g_class, void *)
159 pixbuf_renderer_class_init(static_cast<PixbufRendererClass *>(g_class));
162 static void pixbuf_renderer_init_wrapper(PixbufRenderer *pr, void *)
164 pixbuf_renderer_init(pr);
167 GType pixbuf_renderer_get_type()
169 static GType pixbuf_renderer_type = 0;
171 if (!pixbuf_renderer_type)
173 static const GTypeInfo pixbuf_renderer_info =
175 sizeof(PixbufRendererClass), /* class_size */
176 nullptr, /* base_init */
177 nullptr, /* base_finalize */
178 static_cast<GClassInitFunc>(pixbuf_renderer_class_init_wrapper),
179 nullptr, /* class_finalize */
180 nullptr, /* class_data */
181 sizeof(PixbufRenderer), /* instance_size */
183 reinterpret_cast<GInstanceInitFunc>(pixbuf_renderer_init_wrapper), /* instance_init */
184 nullptr, /* value_table */
187 pixbuf_renderer_type = g_type_register_static(GTK_TYPE_EVENT_BOX, "PixbufRenderer",
188 &pixbuf_renderer_info, static_cast<GTypeFlags>(0));
191 return pixbuf_renderer_type;
194 static void pixbuf_renderer_class_init(PixbufRendererClass *renderer_class)
196 GObjectClass *gobject_class = G_OBJECT_CLASS(renderer_class);
198 parent_class = static_cast<GtkEventBoxClass *>(g_type_class_peek_parent(renderer_class));
200 gobject_class->set_property = pixbuf_renderer_set_property;
201 gobject_class->get_property = pixbuf_renderer_get_property;
203 gobject_class->finalize = pixbuf_renderer_finalize;
205 g_object_class_install_property(gobject_class,
207 g_param_spec_double("zoom_min",
213 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
215 g_object_class_install_property(gobject_class,
217 g_param_spec_double("zoom_max",
223 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
225 g_object_class_install_property(gobject_class,
227 g_param_spec_uint("zoom_quality",
233 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
235 g_object_class_install_property(gobject_class,
237 g_param_spec_boolean("zoom_2pass",
241 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
243 g_object_class_install_property(gobject_class,
245 g_param_spec_boolean("zoom_expand",
246 "Expand image in autozoom.",
249 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
250 g_object_class_install_property(gobject_class,
252 g_param_spec_uint("scroll_reset",
253 "New image scroll reset",
255 PR_SCROLL_RESET_TOPLEFT,
256 PR_SCROLL_RESET_NOCHANGE,
257 PR_SCROLL_RESET_TOPLEFT,
258 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
260 g_object_class_install_property(gobject_class,
262 g_param_spec_boolean("delay_flip",
263 "Delay image update",
266 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
268 g_object_class_install_property(gobject_class,
270 g_param_spec_boolean("loading",
271 "Image actively loading",
274 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
276 g_object_class_install_property(gobject_class,
278 g_param_spec_boolean("complete",
279 "Image rendering complete",
282 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
284 g_object_class_install_property(gobject_class,
285 PROP_CACHE_SIZE_DISPLAY,
286 g_param_spec_uint("cache_display",
287 "Display cache size MiB",
291 PR_CACHE_SIZE_DEFAULT,
292 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
294 g_object_class_install_property(gobject_class,
295 PROP_CACHE_SIZE_TILES,
296 g_param_spec_uint("cache_tiles",
298 "Number of tiles to retain in memory at any one time.",
301 PR_CACHE_SIZE_DEFAULT,
302 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
304 g_object_class_install_property(gobject_class,
306 g_param_spec_boolean("window_fit",
307 "Fit window to image size",
310 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
312 g_object_class_install_property(gobject_class,
314 g_param_spec_boolean("window_limit",
315 "Limit size of parent window",
318 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
320 g_object_class_install_property(gobject_class,
321 PROP_WINDOW_LIMIT_VALUE,
322 g_param_spec_uint("window_limit_value",
323 "Size limit of parent window",
328 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
330 g_object_class_install_property(gobject_class,
332 g_param_spec_boolean("autofit_limit",
333 "Limit size of image when autofitting",
336 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
338 g_object_class_install_property(gobject_class,
339 PROP_AUTOFIT_LIMIT_VALUE,
340 g_param_spec_uint("autofit_limit_value",
341 "Size limit of image when autofitting",
346 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
348 g_object_class_install_property(gobject_class,
349 PROP_ENLARGEMENT_LIMIT_VALUE,
350 g_param_spec_uint("enlargement_limit_value",
351 "Size increase limit of image when autofitting",
356 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
359 signals[SIGNAL_ZOOM] =
361 G_OBJECT_CLASS_TYPE(gobject_class),
363 G_STRUCT_OFFSET(PixbufRendererClass, zoom),
365 g_cclosure_marshal_VOID__DOUBLE,
369 signals[SIGNAL_CLICKED] =
370 g_signal_new("clicked",
371 G_OBJECT_CLASS_TYPE(gobject_class),
373 G_STRUCT_OFFSET(PixbufRendererClass, clicked),
375 g_cclosure_marshal_VOID__BOXED,
379 signals[SIGNAL_SCROLL_NOTIFY] =
380 g_signal_new("scroll-notify",
381 G_OBJECT_CLASS_TYPE(gobject_class),
383 G_STRUCT_OFFSET(PixbufRendererClass, scroll_notify),
385 g_cclosure_marshal_VOID__VOID,
388 signals[SIGNAL_RENDER_COMPLETE] =
389 g_signal_new("render-complete",
390 G_OBJECT_CLASS_TYPE(gobject_class),
392 G_STRUCT_OFFSET(PixbufRendererClass, render_complete),
394 g_cclosure_marshal_VOID__VOID,
397 signals[SIGNAL_DRAG] =
399 G_OBJECT_CLASS_TYPE(gobject_class),
401 G_STRUCT_OFFSET(PixbufRendererClass, drag),
403 g_cclosure_marshal_VOID__BOXED,
407 signals[SIGNAL_UPDATE_PIXEL] =
408 g_signal_new("update-pixel",
409 G_OBJECT_CLASS_TYPE(gobject_class),
411 G_STRUCT_OFFSET(PixbufRendererClass, update_pixel),
413 g_cclosure_marshal_VOID__VOID,
417 static RendererFuncs *pr_backend_renderer_new(PixbufRenderer *pr)
419 return renderer_tiles_new(pr);
423 static void pixbuf_renderer_init(PixbufRenderer *pr)
427 box = GTK_WIDGET(pr);
429 pr->zoom_min = PR_ZOOM_MIN;
430 pr->zoom_max = PR_ZOOM_MAX;
431 pr->zoom_quality = GDK_INTERP_BILINEAR;
432 pr->zoom_2pass = FALSE;
436 pr->aspect_ratio = 1.0;
438 pr->scroll_reset = PR_SCROLL_RESET_TOPLEFT;
441 pr->scroller_overlay = -1;
446 pr->source_tiles_enabled = FALSE;
447 pr->source_tiles = nullptr;
451 pr->norm_center_x = 0.5;
452 pr->norm_center_y = 0.5;
454 pr->stereo_mode = PR_STEREO_NONE;
460 pr->renderer = pr_backend_renderer_new(pr);
462 pr->renderer2 = nullptr;
464 gtk_widget_set_double_buffered(box, FALSE);
465 gtk_widget_set_app_paintable(box, TRUE);
466 g_signal_connect_after(G_OBJECT(box), "size_allocate",
467 G_CALLBACK(pr_size_cb), pr);
469 pr_signals_connect(pr);
472 static void pixbuf_renderer_finalize(GObject *object)
476 pr = PIXBUF_RENDERER(object);
478 pr->renderer->free(pr->renderer);
479 if (pr->renderer2) pr->renderer2->free(pr->renderer2);
482 if (pr->pixbuf) g_object_unref(pr->pixbuf);
484 pr_scroller_timer_set(pr, FALSE);
486 pr_source_tile_free_all(pr);
489 PixbufRenderer *pixbuf_renderer_new()
491 return static_cast<PixbufRenderer *>(g_object_new(TYPE_PIXBUF_RENDERER, nullptr));
494 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
495 const GValue *value, GParamSpec *pspec)
499 pr = PIXBUF_RENDERER(object);
504 pr->zoom_min = g_value_get_double(value);
507 pr->zoom_max = g_value_get_double(value);
509 case PROP_ZOOM_QUALITY:
510 pr->zoom_quality = static_cast<GdkInterpType>(g_value_get_uint(value));
512 case PROP_ZOOM_2PASS:
513 pr->zoom_2pass = g_value_get_boolean(value);
515 case PROP_ZOOM_EXPAND:
516 pr->zoom_expand = g_value_get_boolean(value);
518 case PROP_SCROLL_RESET:
519 pr->scroll_reset = static_cast<PixbufRendererScrollResetType>(g_value_get_uint(value));
521 case PROP_DELAY_FLIP:
522 pr->delay_flip = g_value_get_boolean(value);
525 pr->loading = g_value_get_boolean(value);
528 pr->complete = g_value_get_boolean(value);
530 case PROP_CACHE_SIZE_DISPLAY:
532 case PROP_CACHE_SIZE_TILES:
533 pr->source_tiles_cache_size = g_value_get_uint(value);
535 case PROP_WINDOW_FIT:
536 pr->window_fit = g_value_get_boolean(value);
538 case PROP_WINDOW_LIMIT:
539 pr->window_limit = g_value_get_boolean(value);
541 case PROP_WINDOW_LIMIT_VALUE:
542 pr->window_limit_size = g_value_get_uint(value);
544 case PROP_AUTOFIT_LIMIT:
545 pr->autofit_limit = g_value_get_boolean(value);
547 case PROP_AUTOFIT_LIMIT_VALUE:
548 pr->autofit_limit_size = g_value_get_uint(value);
550 case PROP_ENLARGEMENT_LIMIT_VALUE:
551 pr->enlargement_limit_size = g_value_get_uint(value);
554 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
559 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
560 GValue *value, GParamSpec *pspec)
564 pr = PIXBUF_RENDERER(object);
569 g_value_set_double(value, pr->zoom_min);
572 g_value_set_double(value, pr->zoom_max);
574 case PROP_ZOOM_QUALITY:
575 g_value_set_uint(value, pr->zoom_quality);
577 case PROP_ZOOM_2PASS:
578 g_value_set_boolean(value, pr->zoom_2pass);
580 case PROP_ZOOM_EXPAND:
581 g_value_set_boolean(value, pr->zoom_expand);
583 case PROP_SCROLL_RESET:
584 g_value_set_uint(value, pr->scroll_reset);
586 case PROP_DELAY_FLIP:
587 g_value_set_boolean(value, pr->delay_flip);
590 g_value_set_boolean(value, pr->loading);
593 g_value_set_boolean(value, pr->complete);
595 case PROP_CACHE_SIZE_DISPLAY:
597 case PROP_CACHE_SIZE_TILES:
598 g_value_set_uint(value, pr->source_tiles_cache_size);
600 case PROP_WINDOW_FIT:
601 g_value_set_boolean(value, pr->window_fit);
603 case PROP_WINDOW_LIMIT:
604 g_value_set_boolean(value, pr->window_limit);
606 case PROP_WINDOW_LIMIT_VALUE:
607 g_value_set_uint(value, pr->window_limit_size);
609 case PROP_AUTOFIT_LIMIT:
610 g_value_set_boolean(value, pr->autofit_limit);
612 case PROP_AUTOFIT_LIMIT_VALUE:
613 g_value_set_uint(value, pr->autofit_limit_size);
615 case PROP_ENLARGEMENT_LIMIT_VALUE:
616 g_value_set_uint(value, pr->enlargement_limit_size);
619 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
626 *-------------------------------------------------------------------
628 *-------------------------------------------------------------------
631 static void widget_set_cursor(GtkWidget *widget, gint icon)
636 if (!gtk_widget_get_window(widget)) return;
638 display = gdk_display_get_default();
646 cursor = gdk_cursor_new_for_display(display, static_cast<GdkCursorType>(icon));
649 gdk_window_set_cursor(gtk_widget_get_window(widget), cursor);
651 if (cursor) g_object_unref(G_OBJECT(cursor));
654 gboolean pr_clip_region(gint x, gint y, gint w, gint h,
655 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
656 gint *rx, gint *ry, gint *rw, gint *rh)
658 if (clip_x + clip_w <= x ||
660 clip_y + clip_h <= y ||
666 *rx = MAX(x, clip_x);
667 *rw = MIN((x + w), (clip_x + clip_w)) - *rx;
669 *ry = MAX(y, clip_y);
670 *rh = MIN((y + h), (clip_y + clip_h)) - *ry;
675 static gboolean pr_parent_window_sizable(PixbufRenderer *pr)
677 GdkWindowState state;
679 if (!pr->parent_window) return FALSE;
680 if (!pr->window_fit) return FALSE;
681 if (!gtk_widget_get_window(GTK_WIDGET(pr))) return FALSE;
683 if (!gtk_widget_get_window(pr->parent_window)) return FALSE;
684 state = gdk_window_get_state(gtk_widget_get_window(pr->parent_window));
685 if (state & GDK_WINDOW_STATE_MAXIMIZED) return FALSE;
690 static gboolean pr_parent_window_resize(PixbufRenderer *pr, gint w, gint h)
696 GtkAllocation widget_allocation;
697 GtkAllocation parent_allocation;
699 if (!pr_parent_window_sizable(pr)) return FALSE;
701 if (pr->window_limit)
703 gint sw = gdk_screen_width() * pr->window_limit_size / 100;
704 gint sh = gdk_screen_height() * pr->window_limit_size / 100;
710 widget = GTK_WIDGET(pr);
711 parent = GTK_WIDGET(pr->parent_window);
713 gtk_widget_get_allocation(widget, &widget_allocation);
714 gtk_widget_get_allocation(parent, &parent_allocation);
716 w += (parent_allocation.width - widget_allocation.width);
717 h += (parent_allocation.height - widget_allocation.height);
719 ww = gdk_window_get_width(gtk_widget_get_window(parent));
720 wh = gdk_window_get_height(gtk_widget_get_window(parent));
721 if (w == ww && h == wh) return FALSE;
723 gdk_window_resize(gtk_widget_get_window(parent), w, h);
728 void pixbuf_renderer_set_parent(PixbufRenderer *pr, GtkWindow *window)
730 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
731 g_return_if_fail(window == nullptr || GTK_IS_WINDOW(window));
733 pr->parent_window = GTK_WIDGET(window);
736 #pragma GCC diagnostic push
737 #pragma GCC diagnostic ignored "-Wunused-function"
738 GtkWindow *pixbuf_renderer_get_parent_unused(PixbufRenderer *pr)
740 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
742 return GTK_WINDOW(pr->parent_window);
744 #pragma GCC diagnostic pop
748 *-------------------------------------------------------------------
750 *-------------------------------------------------------------------
754 gint pixbuf_renderer_overlay_add(PixbufRenderer *pr, GdkPixbuf *pixbuf, gint x, gint y,
755 OverlayRendererFlags flags)
757 /* let's assume both renderers returns the same value */
758 if (pr->renderer2) pr->renderer2->overlay_add(pr->renderer2, pixbuf, x, y, flags);
759 return pr->renderer->overlay_add(pr->renderer, pixbuf, x, y, flags);
762 void pixbuf_renderer_overlay_set(PixbufRenderer *pr, gint id, GdkPixbuf *pixbuf, gint x, gint y)
764 pr->renderer->overlay_set(pr->renderer, id, pixbuf, x, y);
765 if (pr->renderer2) pr->renderer2->overlay_set(pr->renderer2, id, pixbuf, x, y);
768 gboolean pixbuf_renderer_overlay_get(PixbufRenderer *pr, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
770 if (pr->renderer2) pr->renderer2->overlay_get(pr->renderer2, id, pixbuf, x, y);
771 return pr->renderer->overlay_get(pr->renderer, id, pixbuf, x, y);
774 void pixbuf_renderer_overlay_remove(PixbufRenderer *pr, gint id)
776 pr->renderer->overlay_set(pr->renderer, id, nullptr, 0, 0);
777 if (pr->renderer2) pr->renderer2->overlay_set(pr->renderer2, id, nullptr, 0, 0);
781 *-------------------------------------------------------------------
783 *-------------------------------------------------------------------
787 static gboolean pr_scroller_update_cb(gpointer data)
789 auto pr = static_cast<PixbufRenderer *>(data);
795 /* this was a simple scroll by difference between scroller and mouse position,
796 * but all this math results in a smoother result and accounts for a dead zone.
799 if (abs(pr->scroller_xpos - pr->scroller_x) < PR_SCROLLER_DEAD_ZONE)
805 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
806 x = (pr->scroller_xpos - pr->scroller_x) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
807 x += (x > 0) ? -shift : shift;
810 if (abs(pr->scroller_ypos - pr->scroller_y) < PR_SCROLLER_DEAD_ZONE)
816 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
817 y = (pr->scroller_ypos - pr->scroller_y) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
818 y += (y > 0) ? -shift : shift;
821 if (abs(x) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
827 xinc = pr->scroller_xinc;
831 if (xinc < 0) xinc = 0;
832 if (x < xinc) xinc = x;
833 if (x > xinc) xinc = MIN(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
837 if (xinc > 0) xinc = 0;
838 if (x > xinc) xinc = x;
839 if (x < xinc) xinc = MAX(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
843 if (abs(y) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
849 yinc = pr->scroller_yinc;
853 if (yinc < 0) yinc = 0;
854 if (y < yinc) yinc = y;
855 if (y > yinc) yinc = MIN(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
859 if (yinc > 0) yinc = 0;
860 if (y > yinc) yinc = y;
861 if (y < yinc) yinc = MAX(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
865 pr->scroller_xinc = xinc;
866 pr->scroller_yinc = yinc;
868 xinc = xinc / PR_SCROLLER_UPDATES_PER_SEC;
869 yinc = yinc / PR_SCROLLER_UPDATES_PER_SEC;
871 pixbuf_renderer_scroll(pr, xinc, yinc);
876 static void pr_scroller_timer_set(PixbufRenderer *pr, gboolean start)
880 g_source_remove(pr->scroller_id);
886 pr->scroller_id = g_timeout_add(1000 / PR_SCROLLER_UPDATES_PER_SEC,
887 pr_scroller_update_cb, pr);
891 static void pr_scroller_start(PixbufRenderer *pr, gint x, gint y)
893 if (pr->scroller_overlay == -1)
900 pixbuf = gdk_pixbuf_new_from_resource(GQ_RESOURCE_PATH_ICONS "/" PIXBUF_INLINE_SCROLLER ".png", nullptr);
902 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 32, 32);
903 gdk_pixbuf_fill(pixbuf, 0x000000ff);
905 w = gdk_pixbuf_get_width(pixbuf);
906 h = gdk_pixbuf_get_height(pixbuf);
908 pr->scroller_overlay = pixbuf_renderer_overlay_add(pr, pixbuf, x - w / 2, y - h / 2, OVL_NORMAL);
909 g_object_unref(pixbuf);
914 pr->scroller_xpos = x;
915 pr->scroller_ypos = y;
917 pr_scroller_timer_set(pr, TRUE);
920 static void pr_scroller_stop(PixbufRenderer *pr)
922 if (!pr->scroller_id) return;
924 pixbuf_renderer_overlay_remove(pr, pr->scroller_overlay);
925 pr->scroller_overlay = -1;
927 pr_scroller_timer_set(pr, FALSE);
931 *-------------------------------------------------------------------
933 *-------------------------------------------------------------------
936 void pixbuf_renderer_set_color(PixbufRenderer *pr, GdkRGBA *color)
938 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
942 pr->color.red = color->red;
943 pr->color.green = color->green;
944 pr->color.blue = color->blue;
953 pr->renderer->update_viewport(pr->renderer);
954 if (pr->renderer2) pr->renderer2->update_viewport(pr->renderer2);
958 *-------------------------------------------------------------------
960 *-------------------------------------------------------------------
963 static void pr_source_tile_free(SourceTile *st)
967 if (st->pixbuf) g_object_unref(st->pixbuf);
971 static void pr_source_tile_free_all(PixbufRenderer *pr)
973 g_list_free_full(pr->source_tiles, reinterpret_cast<GDestroyNotify>(pr_source_tile_free));
974 pr->source_tiles = nullptr;
977 static void pr_source_tile_unset(PixbufRenderer *pr)
979 pr_source_tile_free_all(pr);
980 pr->source_tiles_enabled = FALSE;
983 static gboolean pr_source_tile_visible(PixbufRenderer *pr, SourceTile *st)
990 if (!st) return FALSE;
994 x2 = pr->x_scroll + pr->vis_width;
995 y2 = pr->y_scroll + pr->vis_height;
997 return static_cast<gdouble>(st->x) * pr->scale <= static_cast<gdouble>(x2) &&
998 static_cast<gdouble>(st->x + pr->source_tile_width) * pr->scale >= static_cast<gdouble>(x1) &&
999 static_cast<gdouble>(st->y) * pr->scale <= static_cast<gdouble>(y2) &&
1000 static_cast<gdouble>(st->y + pr->source_tile_height) * pr->scale >= static_cast<gdouble>(y1);
1003 static SourceTile *pr_source_tile_new(PixbufRenderer *pr, gint x, gint y)
1005 SourceTile *st = nullptr;
1008 g_return_val_if_fail(pr->source_tile_width >= 1 && pr->source_tile_height >= 1, NULL);
1010 if (pr->source_tiles_cache_size < 4) pr->source_tiles_cache_size = 4;
1012 count = g_list_length(pr->source_tiles);
1013 if (count >= pr->source_tiles_cache_size)
1017 work = g_list_last(pr->source_tiles);
1018 while (work && count >= pr->source_tiles_cache_size)
1022 needle = static_cast<SourceTile *>(work->data);
1025 if (!pr_source_tile_visible(pr, needle))
1027 pr->source_tiles = g_list_remove(pr->source_tiles, needle);
1029 if (pr->func_tile_dispose)
1031 pr->func_tile_dispose(pr, needle->x, needle->y,
1032 pr->source_tile_width, pr->source_tile_height,
1033 needle->pixbuf, pr->func_tile_data);
1042 pr_source_tile_free(needle);
1052 st = g_new0(SourceTile, 1);
1053 st->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8,
1054 pr->source_tile_width, pr->source_tile_height);
1057 st->x = ROUND_DOWN(x, pr->source_tile_width);
1058 st->y = ROUND_DOWN(y, pr->source_tile_height);
1061 pr->source_tiles = g_list_prepend(pr->source_tiles, st);
1066 static SourceTile *pr_source_tile_request(PixbufRenderer *pr, gint x, gint y)
1070 st = pr_source_tile_new(pr, x, y);
1071 if (!st) return nullptr;
1073 if (pr->func_tile_request &&
1074 pr->func_tile_request(pr, st->x, st->y,
1075 pr->source_tile_width, pr->source_tile_height, st->pixbuf, pr->func_tile_data))
1080 pr->renderer->invalidate_region(pr->renderer, st->x * pr->scale, st->y * pr->scale,
1081 pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
1082 if (pr->renderer2) pr->renderer2->invalidate_region(pr->renderer2, st->x * pr->scale, st->y * pr->scale,
1083 pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
1087 static SourceTile *pr_source_tile_find(PixbufRenderer *pr, gint x, gint y)
1091 work = pr->source_tiles;
1094 auto st = static_cast<SourceTile *>(work->data);
1096 if (x >= st->x && x < st->x + pr->source_tile_width &&
1097 y >= st->y && y < st->y + pr->source_tile_height)
1099 if (work != pr->source_tiles)
1101 pr->source_tiles = g_list_remove_link(pr->source_tiles, work);
1102 pr->source_tiles = g_list_concat(work, pr->source_tiles);
1113 GList *pr_source_tile_compute_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h, gboolean request)
1117 GList *list = nullptr;
1123 if (w > pr->image_width) w = pr->image_width;
1124 if (h > pr->image_height) h = pr->image_height;
1126 sx = ROUND_DOWN(x, pr->source_tile_width);
1127 sy = ROUND_DOWN(y, pr->source_tile_height);
1129 for (x1 = sx; x1 < x + w; x1+= pr->source_tile_width)
1131 for (y1 = sy; y1 < y + h; y1 += pr->source_tile_height)
1135 st = pr_source_tile_find(pr, x1, y1);
1136 if (!st && request) st = pr_source_tile_request(pr, x1, y1);
1138 if (st) list = g_list_prepend(list, st);
1142 return g_list_reverse(list);
1145 static void pr_source_tile_changed(PixbufRenderer *pr, gint x, gint y, gint width, gint height)
1149 if (width < 1 || height < 1) return;
1151 work = pr->source_tiles;
1160 st = static_cast<SourceTile *>(work->data);
1163 if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1164 x, y, width, height,
1165 &rx, &ry, &rw, &rh))
1169 pixbuf = gdk_pixbuf_new_subpixbuf(st->pixbuf, rx - st->x, ry - st->y, rw, rh);
1170 if (pr->func_tile_request &&
1171 pr->func_tile_request(pr, rx, ry, rw, rh, pixbuf, pr->func_tile_data))
1173 pr->renderer->invalidate_region(pr->renderer, rx * pr->scale, ry * pr->scale,
1174 rw * pr->scale, rh * pr->scale);
1175 if (pr->renderer2) pr->renderer2->invalidate_region(pr->renderer2, rx * pr->scale, ry * pr->scale,
1176 rw * pr->scale, rh * pr->scale);
1178 g_object_unref(pixbuf);
1183 void pixbuf_renderer_set_tiles(PixbufRenderer *pr, gint width, gint height,
1184 gint tile_width, gint tile_height, gint cache_size,
1185 PixbufRendererTileRequestFunc func_request,
1186 PixbufRendererTileDisposeFunc func_dispose,
1190 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1191 g_return_if_fail(tile_width >= 32 && tile_height >= 32);
1192 g_return_if_fail(width >= 32 && height > 32);
1193 g_return_if_fail(func_request != nullptr);
1195 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1196 pr->pixbuf = nullptr;
1198 pr_source_tile_unset(pr);
1200 if (cache_size < 4) cache_size = 4;
1202 pr->source_tiles_enabled = TRUE;
1203 pr->source_tiles_cache_size = cache_size;
1204 pr->source_tile_width = tile_width;
1205 pr->source_tile_height = tile_height;
1207 pr->image_width = width;
1208 pr->image_height = height;
1210 pr->func_tile_request = func_request;
1211 pr->func_tile_dispose = func_dispose;
1212 pr->func_tile_data = user_data;
1214 pr_stereo_temp_disable(pr, TRUE);
1215 pr_zoom_sync(pr, zoom, static_cast<PrZoomFlags>(PR_ZOOM_FORCE | PR_ZOOM_NEW), 0, 0);
1218 void pixbuf_renderer_set_tiles_size(PixbufRenderer *pr, gint width, gint height)
1220 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1221 g_return_if_fail(width >= 32 && height > 32);
1223 if (!pr->source_tiles_enabled) return;
1224 if (pr->image_width == width && pr->image_height == height) return;
1226 pr->image_width = width;
1227 pr->image_height = height;
1229 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
1232 gint pixbuf_renderer_get_tiles(PixbufRenderer *pr)
1234 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
1236 return pr->source_tiles_enabled;
1239 static void pr_zoom_adjust_real(PixbufRenderer *pr, gdouble increment,
1240 PrZoomFlags flags, gint x, gint y)
1242 gdouble zoom = pr->zoom;
1244 if (increment == 0.0) return;
1248 if (pr->scale < 1.0)
1250 zoom = 0.0 - 1.0 / pr->scale;
1258 if (options->image.zoom_style == ZOOM_GEOMETRIC)
1260 if (increment < 0.0)
1264 if (zoom / -(increment - 1.0) < 1.0)
1266 zoom = 1.0 / (zoom / (increment - 1.0));
1270 zoom = zoom / -(increment - 1.0) ;
1275 zoom = zoom * -(increment - 1.0);
1282 if (zoom / (increment + 1.0) > -1.0)
1284 zoom = -(1.0 / (zoom / (increment + 1.0)));
1288 zoom = zoom / (increment + 1.0) ;
1293 zoom = zoom * (increment + 1.0);
1299 if (increment < 0.0)
1301 if (zoom >= 1.0 && zoom + increment < 1.0)
1303 zoom = zoom + increment - 2.0;
1307 zoom = zoom + increment;
1312 if (zoom <= -1.0 && zoom + increment > -1.0)
1314 zoom = zoom + increment + 2.0;
1318 zoom = zoom + increment;
1323 pr_zoom_sync(pr, zoom, flags, x, y);
1328 *-------------------------------------------------------------------
1330 *-------------------------------------------------------------------
1333 static void pr_update_signal(PixbufRenderer *pr)
1335 DEBUG_1("%s pixbuf renderer updated - started drawing %p, img: %dx%d", get_exec_time(), (void *)pr, pr->image_width, pr->image_height);
1336 pr->debug_updated = TRUE;
1339 static void pr_zoom_signal(PixbufRenderer *pr)
1341 g_signal_emit(pr, signals[SIGNAL_ZOOM], 0, pr->zoom);
1344 static void pr_clicked_signal(PixbufRenderer *pr, GdkEventButton *bevent)
1346 g_signal_emit(pr, signals[SIGNAL_CLICKED], 0, bevent);
1349 static void pr_scroll_notify_signal(PixbufRenderer *pr)
1351 g_signal_emit(pr, signals[SIGNAL_SCROLL_NOTIFY], 0);
1354 void pr_render_complete_signal(PixbufRenderer *pr)
1358 g_signal_emit(pr, signals[SIGNAL_RENDER_COMPLETE], 0);
1359 g_object_set(G_OBJECT(pr), "complete", TRUE, NULL);
1361 if (pr->debug_updated)
1363 DEBUG_1("%s pixbuf renderer done %p", get_exec_time(), (void *)pr);
1364 pr->debug_updated = FALSE;
1368 static void pr_drag_signal(PixbufRenderer *pr, GdkEventMotion *event)
1370 g_signal_emit(pr, signals[SIGNAL_DRAG], 0, event);
1373 static void pr_update_pixel_signal(PixbufRenderer *pr)
1375 g_signal_emit(pr, signals[SIGNAL_UPDATE_PIXEL], 0);
1379 *-------------------------------------------------------------------
1381 *-------------------------------------------------------------------
1385 void pr_tile_coords_map_orientation(gint orientation,
1386 gdouble tile_x, gdouble tile_y, /* coordinates of the tile */
1387 gdouble image_w, gdouble image_h,
1388 gdouble tile_w, gdouble tile_h,
1389 gdouble *res_x, gdouble *res_y)
1393 switch (orientation)
1395 case EXIF_ORIENTATION_TOP_LEFT:
1396 /* normal -- nothing to do */
1398 case EXIF_ORIENTATION_TOP_RIGHT:
1400 *res_x = image_w - tile_x - tile_w;
1402 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1404 *res_x = image_w - tile_x - tile_w;
1405 *res_y = image_h - tile_y - tile_h;
1407 case EXIF_ORIENTATION_BOTTOM_LEFT:
1409 *res_y = image_h - tile_y - tile_h;
1411 case EXIF_ORIENTATION_LEFT_TOP:
1415 case EXIF_ORIENTATION_RIGHT_TOP:
1416 /* rotated -90 (270) */
1418 *res_y = image_w - tile_x - tile_w;
1420 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1421 *res_x = image_h - tile_y - tile_h;
1422 *res_y = image_w - tile_x - tile_w;
1424 case EXIF_ORIENTATION_LEFT_BOTTOM:
1426 *res_x = image_h - tile_y - tile_h;
1430 /* The other values are out of range */
1435 void pr_tile_region_map_orientation(gint orientation,
1436 gint area_x, gint area_y, /* coordinates of the area inside tile */
1437 gint tile_w, gint tile_h,
1438 gint area_w, gint area_h,
1439 gint *res_x, gint *res_y,
1440 gint *res_w, gint *res_h)
1447 switch (orientation)
1449 case EXIF_ORIENTATION_TOP_LEFT:
1450 /* normal -- nothing to do */
1452 case EXIF_ORIENTATION_TOP_RIGHT:
1454 *res_x = tile_w - area_x - area_w;
1456 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1458 *res_x = tile_w - area_x - area_w;
1459 *res_y = tile_h - area_y - area_h;
1461 case EXIF_ORIENTATION_BOTTOM_LEFT:
1463 *res_y = tile_h - area_y - area_h;
1465 case EXIF_ORIENTATION_LEFT_TOP:
1471 case EXIF_ORIENTATION_RIGHT_TOP:
1472 /* rotated -90 (270) */
1474 *res_y = tile_w - area_x - area_w;
1478 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1479 *res_x = tile_h - area_y - area_h;
1480 *res_y = tile_w - area_x - area_w;
1484 case EXIF_ORIENTATION_LEFT_BOTTOM:
1486 *res_x = tile_h - area_y - area_h;
1492 /* The other values are out of range */
1497 void pr_coords_map_orientation_reverse(gint orientation,
1498 gint area_x, gint area_y,
1499 gint tile_w, gint tile_h,
1500 gint area_w, gint area_h,
1501 gint *res_x, gint *res_y,
1502 gint *res_w, gint *res_h)
1509 switch (orientation)
1511 case EXIF_ORIENTATION_TOP_LEFT:
1512 /* normal -- nothing to do */
1514 case EXIF_ORIENTATION_TOP_RIGHT:
1516 *res_x = tile_w - area_x - area_w;
1518 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1520 *res_x = tile_w - area_x - area_w;
1521 *res_y = tile_h - area_y - area_h;
1523 case EXIF_ORIENTATION_BOTTOM_LEFT:
1525 *res_y = tile_h - area_y - area_h;
1527 case EXIF_ORIENTATION_LEFT_TOP:
1533 case EXIF_ORIENTATION_RIGHT_TOP:
1534 /* rotated -90 (270) */
1535 *res_x = tile_w - area_y - area_h;
1540 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1541 *res_x = tile_w - area_y - area_h;
1542 *res_y = tile_h - area_x - area_w;
1546 case EXIF_ORIENTATION_LEFT_BOTTOM:
1549 *res_y = tile_h - area_x - area_w;
1554 /* The other values are out of range */
1561 static void pixbuf_renderer_sync_scroll_center(PixbufRenderer *pr)
1565 if (!pr->width || !pr->height) return;
1568 * Update norm_center only if the image is bigger than the window.
1569 * With this condition the stored center survives also a temporary display
1570 * of the "broken image" icon.
1573 if (pr->width > pr->viewport_width)
1575 src_x = pr->x_scroll + pr->vis_width / 2;
1576 pr->norm_center_x = static_cast<gdouble>(src_x) / pr->width;
1579 if (pr->height > pr->viewport_height)
1581 src_y = pr->y_scroll + pr->vis_height / 2;
1582 pr->norm_center_y = static_cast<gdouble>(src_y) / pr->height;
1587 static gboolean pr_scroll_clamp(PixbufRenderer *pr)
1592 if (pr->zoom == 0.0)
1600 old_xs = pr->x_scroll;
1601 old_ys = pr->y_scroll;
1603 if (pr->x_offset > 0)
1609 pr->x_scroll = CLAMP(pr->x_scroll, 0, pr->width - pr->vis_width);
1612 if (pr->y_offset > 0)
1618 pr->y_scroll = CLAMP(pr->y_scroll, 0, pr->height - pr->vis_height);
1621 pixbuf_renderer_sync_scroll_center(pr);
1623 return (old_xs != pr->x_scroll || old_ys != pr->y_scroll);
1626 static gboolean pr_size_clamp(PixbufRenderer *pr)
1631 old_vw = pr->vis_width;
1632 old_vh = pr->vis_height;
1634 if (pr->width < pr->viewport_width)
1636 pr->vis_width = pr->width;
1637 pr->x_offset = (pr->viewport_width - pr->width) / 2;
1641 pr->vis_width = pr->viewport_width;
1645 if (pr->height < pr->viewport_height)
1647 pr->vis_height = pr->height;
1648 pr->y_offset = (pr->viewport_height - pr->height) / 2;
1652 pr->vis_height = pr->viewport_height;
1656 pixbuf_renderer_sync_scroll_center(pr);
1658 return (old_vw != pr->vis_width || old_vh != pr->vis_height);
1661 static gboolean pr_zoom_clamp(PixbufRenderer *pr, gdouble zoom,
1667 gboolean force = !!(flags & PR_ZOOM_FORCE);
1668 gboolean new_z = !!(flags & PR_ZOOM_NEW);
1670 zoom = CLAMP(zoom, pr->zoom_min, pr->zoom_max);
1672 if (pr->zoom == zoom && !force) return FALSE;
1674 w = pr->image_width;
1675 h = pr->image_height;
1677 if (zoom == 0.0 && !pr->pixbuf)
1681 else if (zoom == 0.0)
1687 sizeable = (new_z && pr_parent_window_sizable(pr));
1691 max_w = gdk_screen_width();
1692 max_h = gdk_screen_height();
1694 if (pr->window_limit)
1696 max_w = max_w * pr->window_limit_size / 100;
1697 max_h = max_h * pr->window_limit_size / 100;
1702 max_w = pr->viewport_width;
1703 max_h = pr->viewport_height;
1706 if ((pr->zoom_expand && !sizeable) || w > max_w || h > max_h)
1708 if (static_cast<gdouble>(max_w) / w > static_cast<gdouble>(max_h) / h / pr->aspect_ratio)
1710 scale = static_cast<gdouble>(max_h) / h / pr->aspect_ratio;
1712 w = w * scale + 0.5;
1713 if (w > max_w) w = max_w;
1717 scale = static_cast<gdouble>(max_w) / w;
1719 h = h * scale * pr->aspect_ratio + 0.5;
1720 if (h > max_h) h = max_h;
1723 if (pr->autofit_limit)
1725 gdouble factor = static_cast<gdouble>(pr->autofit_limit_size) / 100;
1726 w = w * factor + 0.5;
1727 h = h * factor + 0.5;
1728 scale = scale * factor;
1731 if (pr->zoom_expand)
1733 gdouble factor = static_cast<gdouble>(pr->enlargement_limit_size) / 100;
1736 w = w * factor / scale;
1737 h = h * factor / scale;
1750 else if (zoom > 0.0) /* zoom orig, in */
1754 h = h * scale * pr->aspect_ratio;
1758 scale = 1.0 / (0.0 - zoom);
1760 h = h * scale * pr->aspect_ratio;
1771 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
1772 PrZoomFlags flags, gint px, gint py)
1777 gboolean center_point = !!(flags & PR_ZOOM_CENTER);
1778 gboolean force = !!(flags & PR_ZOOM_FORCE);
1779 gboolean new_z = !!(flags & PR_ZOOM_NEW);
1780 gboolean lazy = !!(flags & PR_ZOOM_LAZY);
1781 PrZoomFlags clamp_flags = flags;
1782 gdouble old_center_x = pr->norm_center_x;
1783 gdouble old_center_y = pr->norm_center_y;
1785 old_scale = pr->scale;
1788 px = CLAMP(px, 0, pr->width);
1789 py = CLAMP(py, 0, pr->height);
1790 old_cx = pr->x_scroll + (px - pr->x_offset);
1791 old_cy = pr->y_scroll + (py - pr->y_offset);
1796 old_cx = pr->x_scroll + pr->vis_width / 2;
1797 old_cy = pr->y_scroll + pr->vis_height / 2;
1800 if (force) clamp_flags = static_cast<PrZoomFlags>(clamp_flags | PR_ZOOM_INVALIDATE);
1801 if (!pr_zoom_clamp(pr, zoom, clamp_flags)) return;
1803 (void) pr_size_clamp(pr);
1804 (void) pr_parent_window_resize(pr, pr->width, pr->height);
1808 switch (pr->scroll_reset)
1810 case PR_SCROLL_RESET_NOCHANGE:
1811 /* maintain old scroll position */
1812 pr->x_scroll = (static_cast<gdouble>(pr->image_width) * old_center_x * pr->scale) - pr->vis_width / 2.0;
1813 pr->y_scroll = (static_cast<gdouble>(pr->image_height) * old_center_y * pr->scale * pr->aspect_ratio) - pr->vis_height / 2.0;
1815 case PR_SCROLL_RESET_CENTER:
1816 /* center new image */
1817 pr->x_scroll = (static_cast<gdouble>(pr->image_width) / 2.0 * pr->scale) - pr->vis_width / 2.0;
1818 pr->y_scroll = (static_cast<gdouble>(pr->image_height) / 2.0 * pr->scale * pr->aspect_ratio) - pr->vis_height / 2.0;
1820 case PR_SCROLL_RESET_TOPLEFT:
1822 /* reset to upper left */
1830 /* user zoom does not force, so keep visible center point */
1833 pr->x_scroll = old_cx / old_scale * pr->scale - (px - pr->x_offset);
1834 pr->y_scroll = old_cy / old_scale * pr->scale * pr->aspect_ratio - (py - pr->y_offset);
1838 pr->x_scroll = old_cx / old_scale * pr->scale - (pr->vis_width / 2.0);
1839 pr->y_scroll = old_cy / old_scale * pr->scale * pr->aspect_ratio - (pr->vis_height / 2.0);
1843 pr_scroll_clamp(pr);
1845 pr->renderer->update_zoom(pr->renderer, lazy);
1846 if (pr->renderer2) pr->renderer2->update_zoom(pr->renderer2, lazy);
1848 pr_scroll_notify_signal(pr);
1850 pr_update_signal(pr);
1853 static void pr_size_sync(PixbufRenderer *pr, gint new_width, gint new_height)
1855 gboolean zoom_changed = FALSE;
1857 gint new_viewport_width = new_width;
1858 gint new_viewport_height = new_height;
1860 if (!pr->stereo_temp_disable)
1862 if (pr->stereo_mode & PR_STEREO_HORIZ)
1864 new_viewport_width = new_width / 2;
1866 else if (pr->stereo_mode & PR_STEREO_VERT)
1868 new_viewport_height = new_height / 2;
1870 else if (pr->stereo_mode & PR_STEREO_FIXED)
1872 new_viewport_width = pr->stereo_fixed_width;
1873 new_viewport_height = pr->stereo_fixed_height;
1877 if (pr->window_width == new_width && pr->window_height == new_height &&
1878 pr->viewport_width == new_viewport_width && pr->viewport_height == new_viewport_height) return;
1880 pr->window_width = new_width;
1881 pr->window_height = new_height;
1882 pr->viewport_width = new_viewport_width;
1883 pr->viewport_height = new_viewport_height;
1885 if (pr->zoom == 0.0)
1887 gdouble old_scale = pr->scale;
1888 pr_zoom_clamp(pr, 0.0, PR_ZOOM_FORCE);
1889 zoom_changed = (old_scale != pr->scale);
1893 pr_scroll_clamp(pr);
1897 pr->renderer->update_zoom(pr->renderer, FALSE);
1898 if (pr->renderer2) pr->renderer2->update_zoom(pr->renderer2, FALSE);
1901 pr->renderer->update_viewport(pr->renderer);
1902 if (pr->renderer2) pr->renderer2->update_viewport(pr->renderer2);
1905 /* ensure scroller remains visible */
1906 if (pr->scroller_overlay != -1)
1908 gboolean update = FALSE;
1910 if (pr->scroller_x > new_width)
1912 pr->scroller_x = new_width;
1913 pr->scroller_xpos = new_width;
1916 if (pr->scroller_y > new_height)
1918 pr->scroller_y = new_height;
1919 pr->scroller_ypos = new_height;
1927 if (pixbuf_renderer_overlay_get(pr, pr->scroller_overlay, &pixbuf, nullptr, nullptr))
1932 w = gdk_pixbuf_get_width(pixbuf);
1933 h = gdk_pixbuf_get_height(pixbuf);
1934 pixbuf_renderer_overlay_set(pr, pr->scroller_overlay, pixbuf,
1935 pr->scroller_x - w / 2, pr->scroller_y - h / 2);
1940 pr_scroll_notify_signal(pr);
1941 if (zoom_changed) pr_zoom_signal(pr);
1942 pr_update_signal(pr);
1945 static void pr_size_cb(GtkWidget *, GtkAllocation *allocation, gpointer data)
1947 auto pr = static_cast<PixbufRenderer *>(data);
1949 pr_size_sync(pr, allocation->width, allocation->height);
1953 *-------------------------------------------------------------------
1955 *-------------------------------------------------------------------
1958 void pixbuf_renderer_scroll(PixbufRenderer *pr, gint x, gint y)
1965 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1967 if (!pr->pixbuf && !pr->source_tiles_enabled) return;
1969 old_x = pr->x_scroll;
1970 old_y = pr->y_scroll;
1975 pr_scroll_clamp(pr);
1977 pixbuf_renderer_sync_scroll_center(pr);
1979 if (pr->x_scroll == old_x && pr->y_scroll == old_y) return;
1981 pr_scroll_notify_signal(pr);
1983 x_off = pr->x_scroll - old_x;
1984 y_off = pr->y_scroll - old_y;
1986 pr->renderer->scroll(pr->renderer, x_off, y_off);
1987 if (pr->renderer2) pr->renderer2->scroll(pr->renderer2, x_off, y_off);
1990 void pixbuf_renderer_scroll_to_point(PixbufRenderer *pr, gint x, gint y,
1991 gdouble x_align, gdouble y_align)
1998 x_align = CLAMP(x_align, 0.0, 1.0);
1999 y_align = CLAMP(y_align, 0.0, 1.0);
2001 ax = static_cast<gdouble>(pr->vis_width) * x_align;
2002 ay = static_cast<gdouble>(pr->vis_height) * y_align;
2004 px = static_cast<gdouble>(x) * pr->scale - (pr->x_scroll + ax);
2005 py = static_cast<gdouble>(y) * pr->scale * pr->aspect_ratio - (pr->y_scroll + ay);
2007 pixbuf_renderer_scroll(pr, px, py);
2010 /* get or set coordinates of viewport center in the image, in range 0.0 - 1.0 */
2012 void pixbuf_renderer_get_scroll_center(PixbufRenderer *pr, gdouble *x, gdouble *y)
2014 *x = pr->norm_center_x;
2015 *y = pr->norm_center_y;
2018 void pixbuf_renderer_set_scroll_center(PixbufRenderer *pr, gdouble x, gdouble y)
2023 dst_x = x * pr->width - pr->vis_width / 2.0 - pr->x_scroll + CLAMP(pr->subpixel_x_scroll, -1.0, 1.0);
2024 dst_y = y * pr->height - pr->vis_height / 2.0 - pr->y_scroll + CLAMP(pr->subpixel_y_scroll, -1.0, 1.0);
2026 pr->subpixel_x_scroll = dst_x - static_cast<gint>(dst_x);
2027 pr->subpixel_y_scroll = dst_y - static_cast<gint>(dst_y);
2029 pixbuf_renderer_scroll(pr, static_cast<gint>(dst_x), static_cast<gint>(dst_y));
2033 *-------------------------------------------------------------------
2035 *-------------------------------------------------------------------
2038 static gboolean pr_mouse_motion_cb(GtkWidget *widget, GdkEventMotion *event, gpointer)
2045 /* This is a hack, but work far the best, at least for single pointer systems.
2046 * See https://bugzilla.gnome.org/show_bug.cgi?id=587714 for more. */
2049 seat = gdk_display_get_default_seat(gdk_window_get_display(event->window));
2050 device = gdk_seat_get_pointer(seat);
2052 gdk_window_get_device_position(event->window, device, &x, &y, nullptr);
2057 pr = PIXBUF_RENDERER(widget);
2059 if (pr->scroller_id)
2061 pr->scroller_xpos = event->x;
2062 pr->scroller_ypos = event->y;
2065 pr->x_mouse = event->x;
2066 pr->y_mouse = event->y;
2067 pr_update_pixel_signal(pr);
2069 if (!pr->in_drag || !gdk_pointer_is_grabbed()) return FALSE;
2071 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
2077 widget_set_cursor(widget, GDK_FLEUR);
2080 if (event->state & GDK_CONTROL_MASK)
2082 accel = PR_PAN_SHIFT_MULTIPLIER;
2089 /* do the scroll - not when drawing rectangle*/
2090 if (!options->draw_rectangle)
2092 pixbuf_renderer_scroll(pr, (pr->drag_last_x - event->x) * accel,
2093 (pr->drag_last_y - event->y) * accel);
2095 pr_drag_signal(pr, event);
2097 pr->drag_last_x = event->x;
2098 pr->drag_last_y = event->y;
2100 /* This is recommended by the GTK+ documentation, but does not work properly.
2101 * Use deprecated way until GTK+ gets a solution for correct motion hint handling:
2102 * https://bugzilla.gnome.org/show_bug.cgi?id=587714
2104 /* gdk_event_request_motions (event); */
2108 static gboolean pr_leave_notify_cb(GtkWidget *widget, GdkEventCrossing *, gpointer)
2112 pr = PIXBUF_RENDERER(widget);
2116 pr_update_pixel_signal(pr);
2120 static gboolean pr_mouse_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer)
2125 pr = PIXBUF_RENDERER(widget);
2127 if (pr->scroller_id) return TRUE;
2129 switch (bevent->button)
2131 case MOUSE_BUTTON_LEFT:
2133 pr->drag_last_x = bevent->x;
2134 pr->drag_last_y = bevent->y;
2136 gdk_pointer_grab(gtk_widget_get_window(widget), FALSE,
2137 static_cast<GdkEventMask>(GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_RELEASE_MASK),
2138 nullptr, nullptr, bevent->time);
2139 gtk_grab_add(widget);
2141 case MOUSE_BUTTON_MIDDLE:
2144 case MOUSE_BUTTON_RIGHT:
2145 pr_clicked_signal(pr, bevent);
2151 parent = gtk_widget_get_parent(widget);
2152 if (widget && gtk_widget_get_can_focus(parent))
2154 gtk_widget_grab_focus(parent);
2160 static gboolean pr_mouse_release_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer)
2164 pr = PIXBUF_RENDERER(widget);
2166 if (pr->scroller_id)
2168 pr_scroller_stop(pr);
2172 if (gdk_pointer_is_grabbed() && gtk_widget_has_grab(GTK_WIDGET(pr)))
2174 gtk_grab_remove(widget);
2175 gdk_pointer_ungrab(bevent->time);
2176 widget_set_cursor(widget, -1);
2179 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
2181 if (bevent->button == MOUSE_BUTTON_LEFT && (bevent->state & GDK_CONTROL_MASK))
2183 pr_scroller_start(pr, bevent->x, bevent->y);
2185 else if (bevent->button == MOUSE_BUTTON_LEFT || bevent->button == MOUSE_BUTTON_MIDDLE)
2187 pr_clicked_signal(pr, bevent);
2191 pr->in_drag = FALSE;
2196 static gboolean pr_mouse_leave_cb(GtkWidget *widget, GdkEventCrossing *, gpointer)
2200 pr = PIXBUF_RENDERER(widget);
2202 if (pr->scroller_id)
2204 pr->scroller_xpos = pr->scroller_x;
2205 pr->scroller_ypos = pr->scroller_y;
2206 pr->scroller_xinc = 0;
2207 pr->scroller_yinc = 0;
2213 static void pr_mouse_drag_cb(GtkWidget *widget, GdkDragContext *, gpointer)
2217 pr = PIXBUF_RENDERER(widget);
2219 pr->drag_moved = PR_DRAG_SCROLL_THRESHHOLD;
2222 static void pr_signals_connect(PixbufRenderer *pr)
2224 g_signal_connect(G_OBJECT(pr), "motion_notify_event",
2225 G_CALLBACK(pr_mouse_motion_cb), pr);
2226 g_signal_connect(G_OBJECT(pr), "button_press_event",
2227 G_CALLBACK(pr_mouse_press_cb), pr);
2228 g_signal_connect(G_OBJECT(pr), "button_release_event",
2229 G_CALLBACK(pr_mouse_release_cb), pr);
2230 g_signal_connect(G_OBJECT(pr), "leave_notify_event",
2231 G_CALLBACK(pr_mouse_leave_cb), pr);
2232 g_signal_connect(G_OBJECT(pr), "leave_notify_event",
2233 G_CALLBACK(pr_leave_notify_cb), pr);
2235 gtk_widget_set_events(GTK_WIDGET(pr), GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
2236 static_cast<GdkEventMask>(GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_SCROLL_MASK |
2237 GDK_LEAVE_NOTIFY_MASK));
2239 g_signal_connect(G_OBJECT(pr), "drag_begin",
2240 G_CALLBACK(pr_mouse_drag_cb), pr);
2245 *-------------------------------------------------------------------
2247 *-------------------------------------------------------------------
2251 COLOR_BYTES = 3, /* rgb */
2252 RC = 0, /* Red-Cyan */
2253 GM = 1, /* Green-Magenta */
2254 YB = 2 /* Yellow-Blue */
2257 static void pr_create_anaglyph_color(GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h, guint mode)
2270 srs = gdk_pixbuf_get_rowstride(right);
2271 s_pix = gdk_pixbuf_get_pixels(right);
2272 spi = s_pix + (x * COLOR_BYTES);
2274 drs = gdk_pixbuf_get_rowstride(pixbuf);
2275 d_pix = gdk_pixbuf_get_pixels(pixbuf);
2276 dpi = d_pix + x * COLOR_BYTES;
2278 for (i = y; i < y + h; i++)
2280 sp = spi + (i * srs);
2281 dp = dpi + (i * drs);
2282 for (j = 0; j < w; j++)
2287 dp[0] = sp[0]; /* copy red channel */
2303 static void pr_create_anaglyph_gray(GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h, guint mode)
2315 const double gc[3] = {0.299, 0.587, 0.114};
2317 srs = gdk_pixbuf_get_rowstride(right);
2318 s_pix = gdk_pixbuf_get_pixels(right);
2319 spi = s_pix + (x * COLOR_BYTES);
2321 drs = gdk_pixbuf_get_rowstride(pixbuf);
2322 d_pix = gdk_pixbuf_get_pixels(pixbuf);
2323 dpi = d_pix + x * COLOR_BYTES;
2325 for (i = y; i < y + h; i++)
2327 sp = spi + (i * srs);
2328 dp = dpi + (i * drs);
2329 for (j = 0; j < w; j++)
2331 guchar g1 = dp[0] * gc[0] + dp[1] * gc[1] + dp[2] * gc[2];
2332 guchar g2 = sp[0] * gc[0] + sp[1] * gc[1] + sp[2] * gc[2];
2336 dp[0] = g2; /* red channel from sp */
2337 dp[1] = g1; /* green and blue from dp */
2357 static void pr_create_anaglyph_dubois(GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h, guint mode)
2370 double pr_dubois_matrix[3][6];
2371 static const double pr_dubois_matrix_RC[3][6] = {
2372 { 0.456, 0.500, 0.176, -0.043, -0.088, -0.002},
2373 {-0.040, -0.038, -0.016, 0.378, 0.734, -0.018},
2374 {-0.015, -0.021, -0.005, -0.072, -0.113, 1.226}};
2375 static const double pr_dubois_matrix_GM[3][6] = {
2376 {-0.062, -0.158, -0.039, 0.529, 0.705, 0.024},
2377 { 0.284, 0.668, 0.143, -0.016, -0.015, -0.065},
2378 {-0.015, -0.027, 0.021, 0.009, 0.075, 0.937}};
2379 static const double pr_dubois_matrix_YB[3][6] = {
2380 { 1.000, -0.193, 0.282, -0.015, -0.116, -0.016},
2381 {-0.024, 0.855, 0.064, 0.006, 0.058, -0.016},
2382 {-0.036, -0.163, 0.021, 0.089, 0.174, 0.858}};
2387 memcpy(pr_dubois_matrix, pr_dubois_matrix_RC, sizeof pr_dubois_matrix);
2390 memcpy(pr_dubois_matrix, pr_dubois_matrix_GM, sizeof pr_dubois_matrix);
2393 memcpy(pr_dubois_matrix, pr_dubois_matrix_YB, sizeof pr_dubois_matrix);
2397 srs = gdk_pixbuf_get_rowstride(right);
2398 s_pix = gdk_pixbuf_get_pixels(right);
2399 spi = s_pix + (x * COLOR_BYTES);
2401 drs = gdk_pixbuf_get_rowstride(pixbuf);
2402 d_pix = gdk_pixbuf_get_pixels(pixbuf);
2403 dpi = d_pix + x * COLOR_BYTES;
2405 for (i = y; i < y + h; i++)
2407 sp = spi + (i * srs);
2408 dp = dpi + (i * drs);
2409 for (j = 0; j < w; j++)
2412 for (k = 0; k < 3; k++)
2414 const double *m = pr_dubois_matrix[k];
2415 res[k] = sp[0] * m[0] + sp[1] * m[1] + sp[2] * m[2] + dp[0] * m[3] + dp[1] * m[4] + dp[2] * m[5];
2416 if (res[k] < 0.0) res[k] = 0;
2417 if (res[k] > 255.0) res[k] = 255.0;
2428 void pr_create_anaglyph(guint mode, GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h)
2430 if (mode & PR_STEREO_ANAGLYPH_RC)
2431 pr_create_anaglyph_color(pixbuf, right, x, y, w, h, RC);
2432 else if (mode & PR_STEREO_ANAGLYPH_GM)
2433 pr_create_anaglyph_color(pixbuf, right, x, y, w, h, GM);
2434 else if (mode & PR_STEREO_ANAGLYPH_YB)
2435 pr_create_anaglyph_color(pixbuf, right, x, y, w, h, YB);
2436 else if (mode & PR_STEREO_ANAGLYPH_GRAY_RC)
2437 pr_create_anaglyph_gray(pixbuf, right, x, y, w, h, RC);
2438 else if (mode & PR_STEREO_ANAGLYPH_GRAY_GM)
2439 pr_create_anaglyph_gray(pixbuf, right, x, y, w, h, GM);
2440 else if (mode & PR_STEREO_ANAGLYPH_GRAY_YB)
2441 pr_create_anaglyph_gray(pixbuf, right, x, y, w, h, YB);
2442 else if (mode & PR_STEREO_ANAGLYPH_DB_RC)
2443 pr_create_anaglyph_dubois(pixbuf, right, x, y, w, h, RC);
2444 else if (mode & PR_STEREO_ANAGLYPH_DB_GM)
2445 pr_create_anaglyph_dubois(pixbuf, right, x, y, w, h, GM);
2446 else if (mode & PR_STEREO_ANAGLYPH_DB_YB)
2447 pr_create_anaglyph_dubois(pixbuf, right, x, y, w, h, YB);
2451 *-------------------------------------------------------------------
2453 *-------------------------------------------------------------------
2455 static void pr_pixbuf_size_sync(PixbufRenderer *pr)
2457 pr->stereo_pixbuf_offset_left = 0;
2458 pr->stereo_pixbuf_offset_right = 0;
2459 if (!pr->pixbuf) return;
2460 switch (pr->orientation)
2462 case EXIF_ORIENTATION_LEFT_TOP:
2463 case EXIF_ORIENTATION_RIGHT_TOP:
2464 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2465 case EXIF_ORIENTATION_LEFT_BOTTOM:
2466 pr->image_width = gdk_pixbuf_get_height(pr->pixbuf);
2467 pr->image_height = gdk_pixbuf_get_width(pr->pixbuf);
2468 if (pr->stereo_data == STEREO_PIXBUF_SBS)
2470 pr->image_height /= 2;
2471 pr->stereo_pixbuf_offset_right = pr->image_height;
2473 else if (pr->stereo_data == STEREO_PIXBUF_CROSS)
2475 pr->image_height /= 2;
2476 pr->stereo_pixbuf_offset_left = pr->image_height;
2481 pr->image_width = gdk_pixbuf_get_width(pr->pixbuf);
2482 pr->image_height = gdk_pixbuf_get_height(pr->pixbuf);
2483 if (pr->stereo_data == STEREO_PIXBUF_SBS)
2485 pr->image_width /= 2;
2486 pr->stereo_pixbuf_offset_right = pr->image_width;
2488 else if (pr->stereo_data == STEREO_PIXBUF_CROSS)
2490 pr->image_width /= 2;
2491 pr->stereo_pixbuf_offset_left = pr->image_width;
2496 static void pr_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, PrZoomFlags flags)
2498 if (pixbuf) g_object_ref(pixbuf);
2499 if (pr->pixbuf) g_object_unref(pr->pixbuf);
2500 pr->pixbuf = pixbuf;
2504 /* no pixbuf so just clear the window */
2505 pr->image_width = 0;
2506 pr->image_height = 0;
2508 pr->zoom = zoom; /* don't throw away the zoom value, it is set by pixbuf_renderer_move, among others,
2509 and used for pixbuf_renderer_zoom_get */
2511 pr->renderer->update_pixbuf(pr->renderer, flags & PR_ZOOM_LAZY);
2512 if (pr->renderer2) pr->renderer2->update_pixbuf(pr->renderer2, flags & PR_ZOOM_LAZY);
2514 pr_update_signal(pr);
2519 if (pr->stereo_mode & PR_STEREO_TEMP_DISABLE)
2521 gint disable = !pr->pixbuf || ! pr->stereo_data;
2522 pr_stereo_temp_disable(pr, disable);
2525 pr_pixbuf_size_sync(pr);
2526 pr->renderer->update_pixbuf(pr->renderer, flags & PR_ZOOM_LAZY);
2527 if (pr->renderer2) pr->renderer2->update_pixbuf(pr->renderer2, flags & PR_ZOOM_LAZY);
2528 pr_zoom_sync(pr, zoom, static_cast<PrZoomFlags>(flags | PR_ZOOM_FORCE | PR_ZOOM_NEW), 0, 0);
2531 void pixbuf_renderer_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom)
2533 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2535 pr_source_tile_unset(pr);
2537 pr_set_pixbuf(pr, pixbuf, zoom, PR_ZOOM_NONE);
2539 pr_update_signal(pr);
2542 void pixbuf_renderer_set_pixbuf_lazy(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, gint orientation, StereoPixbufData stereo_data)
2544 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2546 pr_source_tile_unset(pr);
2548 pr->orientation = orientation;
2549 pr->stereo_data = stereo_data;
2550 pr_set_pixbuf(pr, pixbuf, zoom, PR_ZOOM_LAZY);
2552 pr_update_signal(pr);
2555 GdkPixbuf *pixbuf_renderer_get_pixbuf(PixbufRenderer *pr)
2557 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
2562 void pixbuf_renderer_set_orientation(PixbufRenderer *pr, gint orientation)
2564 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2566 pr->orientation = orientation;
2568 pr_pixbuf_size_sync(pr);
2569 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
2572 #pragma GCC diagnostic push
2573 #pragma GCC diagnostic ignored "-Wunused-function"
2574 gint pixbuf_renderer_get_orientation_unused(PixbufRenderer *pr)
2577 return pr->orientation;
2579 #pragma GCC diagnostic pop
2581 void pixbuf_renderer_set_stereo_data(PixbufRenderer *pr, StereoPixbufData stereo_data)
2583 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2584 if (pr->stereo_data == stereo_data) return;
2587 pr->stereo_data = stereo_data;
2589 if (pr->stereo_mode & PR_STEREO_TEMP_DISABLE)
2591 gint disable = !pr->pixbuf || ! pr->stereo_data;
2592 pr_stereo_temp_disable(pr, disable);
2594 pr_pixbuf_size_sync(pr);
2595 pr->renderer->update_pixbuf(pr->renderer, FALSE);
2596 if (pr->renderer2) pr->renderer2->update_pixbuf(pr->renderer2, FALSE);
2597 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
2600 void pixbuf_renderer_set_post_process_func(PixbufRenderer *pr, PixbufRendererPostProcessFunc func, gpointer user_data, gboolean slow)
2602 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2604 pr->func_post_process = func;
2605 pr->post_process_user_data = user_data;
2606 pr->post_process_slow = func && slow;
2611 void pixbuf_renderer_move(PixbufRenderer *pr, PixbufRenderer *source)
2614 PixbufRendererScrollResetType scroll_reset;
2616 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2617 g_return_if_fail(IS_PIXBUF_RENDERER(source));
2619 if (pr == source) return;
2621 object = G_OBJECT(pr);
2623 g_object_set(object, "zoom_min", source->zoom_min, NULL);
2624 g_object_set(object, "zoom_max", source->zoom_max, NULL);
2625 g_object_set(object, "loading", source->loading, NULL);
2627 pr->complete = source->complete;
2629 pr->x_scroll = source->x_scroll;
2630 pr->y_scroll = source->y_scroll;
2631 pr->x_mouse = source->x_mouse;
2632 pr->y_mouse = source->y_mouse;
2634 scroll_reset = pr->scroll_reset;
2635 pr->scroll_reset = PR_SCROLL_RESET_NOCHANGE;
2637 pr->func_post_process = source->func_post_process;
2638 pr->post_process_user_data = source->post_process_user_data;
2639 pr->post_process_slow = source->post_process_slow;
2640 pr->orientation = source->orientation;
2641 pr->stereo_data = source->stereo_data;
2643 if (source->source_tiles_enabled)
2645 pr_source_tile_unset(pr);
2647 pr->source_tiles_enabled = source->source_tiles_enabled;
2648 pr->source_tiles_cache_size = source->source_tiles_cache_size;
2649 pr->source_tile_width = source->source_tile_width;
2650 pr->source_tile_height = source->source_tile_height;
2651 pr->image_width = source->image_width;
2652 pr->image_height = source->image_height;
2654 pr->func_tile_request = source->func_tile_request;
2655 pr->func_tile_dispose = source->func_tile_dispose;
2656 pr->func_tile_data = source->func_tile_data;
2658 pr->source_tiles = source->source_tiles;
2659 source->source_tiles = nullptr;
2661 pr_zoom_sync(pr, source->zoom, static_cast<PrZoomFlags>(PR_ZOOM_FORCE | PR_ZOOM_NEW), 0, 0);
2665 pixbuf_renderer_set_pixbuf(pr, source->pixbuf, source->zoom);
2668 pr->scroll_reset = scroll_reset;
2670 pixbuf_renderer_set_pixbuf(source, nullptr, source->zoom);
2673 void pixbuf_renderer_copy(PixbufRenderer *pr, PixbufRenderer *source)
2676 PixbufRendererScrollResetType scroll_reset;
2678 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2679 g_return_if_fail(IS_PIXBUF_RENDERER(source));
2681 if (pr == source) return;
2683 object = G_OBJECT(pr);
2685 g_object_set(object, "zoom_min", source->zoom_min, NULL);
2686 g_object_set(object, "zoom_max", source->zoom_max, NULL);
2687 g_object_set(object, "loading", source->loading, NULL);
2689 pr->complete = source->complete;
2691 pr->x_scroll = source->x_scroll;
2692 pr->y_scroll = source->y_scroll;
2693 pr->x_mouse = source->x_mouse;
2694 pr->y_mouse = source->y_mouse;
2696 scroll_reset = pr->scroll_reset;
2697 pr->scroll_reset = PR_SCROLL_RESET_NOCHANGE;
2699 pr->orientation = source->orientation;
2700 pr->stereo_data = source->stereo_data;
2702 if (source->source_tiles_enabled)
2704 pr->source_tiles_enabled = source->source_tiles_enabled;
2705 pr->source_tiles_cache_size = source->source_tiles_cache_size;
2706 pr->source_tile_width = source->source_tile_width;
2707 pr->source_tile_height = source->source_tile_height;
2708 pr->image_width = source->image_width;
2709 pr->image_height = source->image_height;
2711 pr->func_tile_request = source->func_tile_request;
2712 pr->func_tile_dispose = source->func_tile_dispose;
2713 pr->func_tile_data = source->func_tile_data;
2715 pr->source_tiles = source->source_tiles;
2716 source->source_tiles = nullptr;
2718 pr_zoom_sync(pr, source->zoom, static_cast<PrZoomFlags>(PR_ZOOM_FORCE | PR_ZOOM_NEW), 0, 0);
2722 pixbuf_renderer_set_pixbuf(pr, source->pixbuf, source->zoom);
2725 pr->scroll_reset = scroll_reset;
2728 void pixbuf_renderer_area_changed(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
2730 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2732 if (pr->source_tiles_enabled)
2734 pr_source_tile_changed(pr, x, y, w, h);
2737 pr->renderer->area_changed(pr->renderer, x, y, w, h);
2738 if (pr->renderer2) pr->renderer2->area_changed(pr->renderer2, x, y, w, h);
2741 void pixbuf_renderer_zoom_adjust(PixbufRenderer *pr, gdouble increment)
2743 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2745 pr_zoom_adjust_real(pr, increment, PR_ZOOM_NONE, 0, 0);
2748 void pixbuf_renderer_zoom_adjust_at_point(PixbufRenderer *pr, gdouble increment, gint x, gint y)
2750 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2752 pr_zoom_adjust_real(pr, increment, PR_ZOOM_CENTER, x, y);
2755 void pixbuf_renderer_zoom_set(PixbufRenderer *pr, gdouble zoom)
2757 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2759 pr_zoom_sync(pr, zoom, PR_ZOOM_NONE, 0, 0);
2762 gdouble pixbuf_renderer_zoom_get(PixbufRenderer *pr)
2764 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
2769 gdouble pixbuf_renderer_zoom_get_scale(PixbufRenderer *pr)
2771 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
2776 void pixbuf_renderer_zoom_set_limits(PixbufRenderer *pr, gdouble min, gdouble max)
2778 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2780 if (min > 1.0 || max < 1.0) return;
2781 if (min < 1.0 && min > -1.0) return;
2782 if (min < -200.0 || max > 200.0) return;
2784 if (pr->zoom_min != min)
2787 g_object_notify(G_OBJECT(pr), "zoom_min");
2789 if (pr->zoom_max != max)
2792 g_object_notify(G_OBJECT(pr), "zoom_max");
2796 static void pr_stereo_set(PixbufRenderer *pr)
2798 if (!pr->renderer) pr->renderer = pr_backend_renderer_new(pr);
2800 pr->renderer->stereo_set(pr->renderer, pr->stereo_mode & ~PR_STEREO_MIRROR_RIGHT & ~PR_STEREO_FLIP_RIGHT);
2802 if (pr->stereo_mode & (PR_STEREO_HORIZ | PR_STEREO_VERT | PR_STEREO_FIXED))
2804 if (!pr->renderer2) pr->renderer2 = pr_backend_renderer_new(pr);
2805 pr->renderer2->stereo_set(pr->renderer2, (pr->stereo_mode & ~PR_STEREO_MIRROR_LEFT & ~PR_STEREO_FLIP_LEFT) | PR_STEREO_RIGHT);
2809 if (pr->renderer2) pr->renderer2->free(pr->renderer2);
2810 pr->renderer2 = nullptr;
2812 if (pr->stereo_mode & PR_STEREO_HALF)
2814 if (pr->stereo_mode & PR_STEREO_HORIZ) pr->aspect_ratio = 2.0;
2815 else if (pr->stereo_mode & PR_STEREO_VERT) pr->aspect_ratio = 0.5;
2816 else pr->aspect_ratio = 1.0;
2820 pr->aspect_ratio = 1.0;
2824 void pixbuf_renderer_stereo_set(PixbufRenderer *pr, gint stereo_mode)
2826 gboolean redraw = !(pr->stereo_mode == stereo_mode) || pr->stereo_temp_disable;
2827 pr->stereo_mode = stereo_mode;
2828 if ((stereo_mode & PR_STEREO_TEMP_DISABLE) && pr->stereo_temp_disable) return;
2830 pr->stereo_temp_disable = FALSE;
2836 pr_size_sync(pr, pr->window_width, pr->window_height); /* recalculate new viewport */
2837 pr_zoom_sync(pr, pr->zoom, static_cast<PrZoomFlags>(PR_ZOOM_FORCE | PR_ZOOM_NEW), 0, 0);
2841 void pixbuf_renderer_stereo_fixed_set(PixbufRenderer *pr, gint width, gint height, gint x1, gint y1, gint x2, gint y2)
2843 pr->stereo_fixed_width = width;
2844 pr->stereo_fixed_height = height;
2845 pr->stereo_fixed_x_left = x1;
2846 pr->stereo_fixed_y_left = y1;
2847 pr->stereo_fixed_x_right = x2;
2848 pr->stereo_fixed_y_right = y2;
2851 gint pixbuf_renderer_stereo_get(PixbufRenderer *pr)
2853 return pr->stereo_mode;
2856 static void pr_stereo_temp_disable(PixbufRenderer *pr, gboolean disable)
2858 if (pr->stereo_temp_disable == disable) return;
2859 pr->stereo_temp_disable = disable;
2862 if (!pr->renderer) pr->renderer = pr_backend_renderer_new(pr);
2863 pr->renderer->stereo_set(pr->renderer, PR_STEREO_NONE);
2864 if (pr->renderer2) pr->renderer2->free(pr->renderer2);
2865 pr->renderer2 = nullptr;
2866 pr->aspect_ratio = 1.0;
2872 pr_size_sync(pr, pr->window_width, pr->window_height); /* recalculate new viewport */
2875 gboolean pixbuf_renderer_get_pixel_colors(PixbufRenderer *pr, gint x_pixel, gint y_pixel,
2876 gint *r_mouse, gint *g_mouse, gint *b_mouse)
2878 GdkPixbuf *pb = pr->pixbuf;
2890 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2891 g_return_val_if_fail(r_mouse != nullptr && g_mouse != nullptr && b_mouse != nullptr, FALSE);
2893 if (!pr->pixbuf && !pr->source_tiles_enabled)
2901 if (!pb) return FALSE;
2903 pr_tile_region_map_orientation(pr->orientation,
2905 pr->image_width, pr->image_height,
2906 1, 1, /*single pixel */
2910 if (map_x < 0 || map_x > gdk_pixbuf_get_width(pr->pixbuf) - 1) return FALSE;
2911 if (map_y < 0 || map_y > gdk_pixbuf_get_height(pr->pixbuf) - 1) return FALSE;
2913 p_alpha = gdk_pixbuf_get_has_alpha(pb);
2914 prs = gdk_pixbuf_get_rowstride(pb);
2915 p_pix = gdk_pixbuf_get_pixels(pb);
2917 xoff = static_cast<size_t>(map_x) * (p_alpha ? 4 : 3);
2918 yoff = static_cast<size_t>(map_y) * prs;
2919 pp = p_pix + yoff + xoff;
2929 gboolean pixbuf_renderer_get_mouse_position(PixbufRenderer *pr, gint *x_pixel_return, gint *y_pixel_return)
2933 gint x_pixel_clamped;
2934 gint y_pixel_clamped;
2936 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2937 g_return_val_if_fail(x_pixel_return != nullptr && y_pixel_return != nullptr, FALSE);
2939 if (!pr->pixbuf && !pr->source_tiles_enabled)
2941 *x_pixel_return = -1;
2942 *y_pixel_return = -1;
2946 x_pixel = floor(static_cast<gdouble>(pr->x_mouse - pr->x_offset + pr->x_scroll) / pr->scale);
2947 y_pixel = floor(static_cast<gdouble>(pr->y_mouse - pr->y_offset + pr->y_scroll) / pr->scale / pr->aspect_ratio);
2948 x_pixel_clamped = CLAMP(x_pixel, 0, pr->image_width - 1);
2949 y_pixel_clamped = CLAMP(y_pixel, 0, pr->image_height - 1);
2951 if (x_pixel != x_pixel_clamped)
2953 /* mouse is not on pr */
2956 if (y_pixel != y_pixel_clamped)
2958 /* mouse is not on pr */
2962 *x_pixel_return = x_pixel;
2963 *y_pixel_return = y_pixel;
2968 gboolean pixbuf_renderer_get_image_size(PixbufRenderer *pr, gint *width, gint *height)
2970 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2971 g_return_val_if_fail(width != nullptr && height != nullptr, FALSE);
2973 if (!pr->pixbuf && !pr->source_tiles_enabled && (!pr->image_width || !pr->image_height))
2980 *width = pr->image_width;
2981 *height = pr->image_height;
2985 gboolean pixbuf_renderer_get_scaled_size(PixbufRenderer *pr, gint *width, gint *height)
2987 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2988 g_return_val_if_fail(width != nullptr && height != nullptr, FALSE);
2990 if (!pr->pixbuf && !pr->source_tiles_enabled && (!pr->image_width || !pr->image_height))
2998 *height = pr->height;
3002 gboolean pixbuf_renderer_get_visible_rect(PixbufRenderer *pr, GdkRectangle *rect)
3004 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
3005 g_return_val_if_fail(rect != nullptr, FALSE);
3007 if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
3017 rect->x = static_cast<gint>(static_cast<gdouble>(pr->x_scroll) / pr->scale);
3018 rect->y = static_cast<gint>(static_cast<gdouble>(pr->y_scroll) / pr->scale / pr->aspect_ratio);
3019 rect->width = static_cast<gint>(static_cast<gdouble>(pr->vis_width) / pr->scale);
3020 rect->height = static_cast<gint>(static_cast<gdouble>(pr->vis_height) / pr->scale / pr->aspect_ratio);
3024 #pragma GCC diagnostic push
3025 #pragma GCC diagnostic ignored "-Wunused-function"
3026 gboolean pixbuf_renderer_get_virtual_rect_unused(PixbufRenderer *pr, GdkRectangle *rect)
3028 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
3029 g_return_val_if_fail(rect != nullptr, FALSE);
3031 if ((!pr->pixbuf && !pr->source_tiles_enabled))
3040 rect->x = pr->x_scroll;
3041 rect->y = pr->y_scroll;
3042 rect->width = pr->vis_width;
3043 rect->height = pr->vis_height;
3046 #pragma GCC diagnostic pop
3048 void pixbuf_renderer_set_size_early(PixbufRenderer *, guint, guint)
3051 /** @FIXME this function does not consider the image orientation,
3052 so it probably only breaks something */
3056 zoom = pixbuf_renderer_zoom_get(pr);
3057 pr->image_width = width;
3058 pr->image_height = height;
3060 pr_zoom_clamp(pr, zoom, PR_ZOOM_FORCE, NULL);
3064 void pixbuf_renderer_set_ignore_alpha(PixbufRenderer *pr, gint ignore_alpha)
3066 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3068 pr->ignore_alpha = ignore_alpha;
3069 pr_pixbuf_size_sync(pr);
3070 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
3073 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */