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"
29 #include "main-defines.h"
31 #include "renderer-tiles.h"
33 /* comment this out if not using this from within Geeqie
34 * defining GQ_BUILD does these things:
35 * - Sets the shift-click scroller pixbuf to a nice icon instead of a black box
41 #include "pixbuf-util.h"
43 enum ExifOrientationType {
44 EXIF_ORIENTATION_UNKNOWN = 0,
45 EXIF_ORIENTATION_TOP_LEFT = 1,
46 EXIF_ORIENTATION_TOP_RIGHT = 2,
47 EXIF_ORIENTATION_BOTTOM_RIGHT = 3,
48 EXIF_ORIENTATION_BOTTOM_LEFT = 4,
49 EXIF_ORIENTATION_LEFT_TOP = 5,
50 EXIF_ORIENTATION_RIGHT_TOP = 6,
51 EXIF_ORIENTATION_RIGHT_BOTTOM = 7,
52 EXIF_ORIENTATION_LEFT_BOTTOM = 8
57 /* default min and max zoom */
58 #define PR_ZOOM_MIN (-32.0)
59 #define PR_ZOOM_MAX 32.0
61 /* distance to drag mouse to disable image flip */
63 PR_DRAG_SCROLL_THRESHHOLD = 4
66 /* increase pan rate when holding down shift */
68 PR_PAN_SHIFT_MULTIPLIER = 6
73 PR_SCROLLER_UPDATES_PER_SEC = 30,
74 PR_SCROLLER_DEAD_ZONE = 6
77 /* when scaling image to below this size, use nearest pixel for scaling
78 * (below about 4, the other scale types become slow generating their conversion tables)
81 //~ PR_MIN_SCALE_SIZE = 8
88 SIGNAL_RENDER_COMPLETE,
105 PROP_CACHE_SIZE_DISPLAY,
106 PROP_CACHE_SIZE_TILES,
109 PROP_WINDOW_LIMIT_VALUE,
111 PROP_AUTOFIT_LIMIT_VALUE,
112 PROP_ENLARGEMENT_LIMIT_VALUE
117 PR_ZOOM_FORCE = 1 << 0,
118 PR_ZOOM_NEW = 1 << 1,
119 PR_ZOOM_CENTER = 1 << 2,
120 PR_ZOOM_INVALIDATE = 1 << 3,
121 PR_ZOOM_LAZY = 1 << 4 /* wait with redraw for pixbuf_renderer_area_changed */
124 static guint signals[SIGNAL_COUNT] = { 0 };
125 static GtkEventBoxClass *parent_class = nullptr;
129 static void pixbuf_renderer_class_init(PixbufRendererClass *renderer_class);
130 static void pixbuf_renderer_init(PixbufRenderer *pr);
131 static void pixbuf_renderer_finalize(GObject *object);
132 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
133 const GValue *value, GParamSpec *pspec);
134 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
135 GValue *value, GParamSpec *pspec);
136 static void pr_scroller_timer_set(PixbufRenderer *pr, gboolean start);
139 static void pr_source_tile_free_all(PixbufRenderer *pr);
141 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
142 PrZoomFlags flags, gint px, gint py);
144 static void pr_signals_connect(PixbufRenderer *pr);
145 static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data);
146 static void pr_stereo_temp_disable(PixbufRenderer *pr, gboolean disable);
150 *-------------------------------------------------------------------
151 * Pixbuf Renderer object
152 *-------------------------------------------------------------------
155 static void pixbuf_renderer_class_init_wrapper(void *g_class, void *)
157 pixbuf_renderer_class_init(static_cast<PixbufRendererClass *>(g_class));
160 static void pixbuf_renderer_init_wrapper(PixbufRenderer *pr, void *)
162 pixbuf_renderer_init(pr);
165 GType pixbuf_renderer_get_type()
167 static GType pixbuf_renderer_type = 0;
169 if (!pixbuf_renderer_type)
171 static const GTypeInfo pixbuf_renderer_info =
173 sizeof(PixbufRendererClass), /* class_size */
174 nullptr, /* base_init */
175 nullptr, /* base_finalize */
176 static_cast<GClassInitFunc>(pixbuf_renderer_class_init_wrapper),
177 nullptr, /* class_finalize */
178 nullptr, /* class_data */
179 sizeof(PixbufRenderer), /* instance_size */
181 reinterpret_cast<GInstanceInitFunc>(pixbuf_renderer_init_wrapper), /* instance_init */
182 nullptr, /* value_table */
185 pixbuf_renderer_type = g_type_register_static(GTK_TYPE_EVENT_BOX, "PixbufRenderer",
186 &pixbuf_renderer_info, static_cast<GTypeFlags>(0));
189 return pixbuf_renderer_type;
192 static void pixbuf_renderer_class_init(PixbufRendererClass *renderer_class)
194 GObjectClass *gobject_class = G_OBJECT_CLASS(renderer_class);
196 parent_class = static_cast<GtkEventBoxClass *>(g_type_class_peek_parent(renderer_class));
198 gobject_class->set_property = pixbuf_renderer_set_property;
199 gobject_class->get_property = pixbuf_renderer_get_property;
201 gobject_class->finalize = pixbuf_renderer_finalize;
203 g_object_class_install_property(gobject_class,
205 g_param_spec_double("zoom_min",
211 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
213 g_object_class_install_property(gobject_class,
215 g_param_spec_double("zoom_max",
221 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
223 g_object_class_install_property(gobject_class,
225 g_param_spec_uint("zoom_quality",
231 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
233 g_object_class_install_property(gobject_class,
235 g_param_spec_boolean("zoom_2pass",
239 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
241 g_object_class_install_property(gobject_class,
243 g_param_spec_boolean("zoom_expand",
244 "Expand image in autozoom.",
247 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
248 g_object_class_install_property(gobject_class,
250 g_param_spec_uint("scroll_reset",
251 "New image scroll reset",
253 PR_SCROLL_RESET_TOPLEFT,
254 PR_SCROLL_RESET_NOCHANGE,
255 PR_SCROLL_RESET_TOPLEFT,
256 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
258 g_object_class_install_property(gobject_class,
260 g_param_spec_boolean("delay_flip",
261 "Delay image update",
264 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
266 g_object_class_install_property(gobject_class,
268 g_param_spec_boolean("loading",
269 "Image actively loading",
272 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
274 g_object_class_install_property(gobject_class,
276 g_param_spec_boolean("complete",
277 "Image rendering complete",
280 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
282 g_object_class_install_property(gobject_class,
283 PROP_CACHE_SIZE_DISPLAY,
284 g_param_spec_uint("cache_display",
285 "Display cache size MiB",
289 PR_CACHE_SIZE_DEFAULT,
290 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
292 g_object_class_install_property(gobject_class,
293 PROP_CACHE_SIZE_TILES,
294 g_param_spec_uint("cache_tiles",
296 "Number of tiles to retain in memory at any one time.",
299 PR_CACHE_SIZE_DEFAULT,
300 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
302 g_object_class_install_property(gobject_class,
304 g_param_spec_boolean("window_fit",
305 "Fit window to image size",
308 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
310 g_object_class_install_property(gobject_class,
312 g_param_spec_boolean("window_limit",
313 "Limit size of parent window",
316 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
318 g_object_class_install_property(gobject_class,
319 PROP_WINDOW_LIMIT_VALUE,
320 g_param_spec_uint("window_limit_value",
321 "Size limit of parent window",
326 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
328 g_object_class_install_property(gobject_class,
330 g_param_spec_boolean("autofit_limit",
331 "Limit size of image when autofitting",
334 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
336 g_object_class_install_property(gobject_class,
337 PROP_AUTOFIT_LIMIT_VALUE,
338 g_param_spec_uint("autofit_limit_value",
339 "Size limit of image when autofitting",
344 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
346 g_object_class_install_property(gobject_class,
347 PROP_ENLARGEMENT_LIMIT_VALUE,
348 g_param_spec_uint("enlargement_limit_value",
349 "Size increase limit of image when autofitting",
354 static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_WRITABLE)));
357 signals[SIGNAL_ZOOM] =
359 G_OBJECT_CLASS_TYPE(gobject_class),
361 G_STRUCT_OFFSET(PixbufRendererClass, zoom),
363 g_cclosure_marshal_VOID__DOUBLE,
367 signals[SIGNAL_CLICKED] =
368 g_signal_new("clicked",
369 G_OBJECT_CLASS_TYPE(gobject_class),
371 G_STRUCT_OFFSET(PixbufRendererClass, clicked),
373 g_cclosure_marshal_VOID__BOXED,
377 signals[SIGNAL_SCROLL_NOTIFY] =
378 g_signal_new("scroll-notify",
379 G_OBJECT_CLASS_TYPE(gobject_class),
381 G_STRUCT_OFFSET(PixbufRendererClass, scroll_notify),
383 g_cclosure_marshal_VOID__VOID,
386 signals[SIGNAL_RENDER_COMPLETE] =
387 g_signal_new("render-complete",
388 G_OBJECT_CLASS_TYPE(gobject_class),
390 G_STRUCT_OFFSET(PixbufRendererClass, render_complete),
392 g_cclosure_marshal_VOID__VOID,
395 signals[SIGNAL_DRAG] =
397 G_OBJECT_CLASS_TYPE(gobject_class),
399 G_STRUCT_OFFSET(PixbufRendererClass, drag),
401 g_cclosure_marshal_VOID__BOXED,
405 signals[SIGNAL_UPDATE_PIXEL] =
406 g_signal_new("update-pixel",
407 G_OBJECT_CLASS_TYPE(gobject_class),
409 G_STRUCT_OFFSET(PixbufRendererClass, update_pixel),
411 g_cclosure_marshal_VOID__VOID,
415 static RendererFuncs *pr_backend_renderer_new(PixbufRenderer *pr)
417 return renderer_tiles_new(pr);
421 static void pixbuf_renderer_init(PixbufRenderer *pr)
425 box = GTK_WIDGET(pr);
427 pr->zoom_min = PR_ZOOM_MIN;
428 pr->zoom_max = PR_ZOOM_MAX;
429 pr->zoom_quality = GDK_INTERP_BILINEAR;
430 pr->zoom_2pass = FALSE;
434 pr->aspect_ratio = 1.0;
436 pr->scroll_reset = PR_SCROLL_RESET_TOPLEFT;
439 pr->scroller_overlay = -1;
444 pr->source_tiles_enabled = FALSE;
445 pr->source_tiles = nullptr;
449 pr->norm_center_x = 0.5;
450 pr->norm_center_y = 0.5;
452 pr->stereo_mode = PR_STEREO_NONE;
458 pr->renderer = pr_backend_renderer_new(pr);
460 pr->renderer2 = nullptr;
462 gtk_widget_set_double_buffered(box, FALSE);
463 gtk_widget_set_app_paintable(box, TRUE);
464 g_signal_connect_after(G_OBJECT(box), "size_allocate",
465 G_CALLBACK(pr_size_cb), pr);
467 pr_signals_connect(pr);
470 static void pixbuf_renderer_finalize(GObject *object)
474 pr = PIXBUF_RENDERER(object);
476 pr->renderer->free(pr->renderer);
477 if (pr->renderer2) pr->renderer2->free(pr->renderer2);
480 if (pr->pixbuf) g_object_unref(pr->pixbuf);
482 pr_scroller_timer_set(pr, FALSE);
484 pr_source_tile_free_all(pr);
487 PixbufRenderer *pixbuf_renderer_new()
489 return static_cast<PixbufRenderer *>(g_object_new(TYPE_PIXBUF_RENDERER, nullptr));
492 static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
493 const GValue *value, GParamSpec *pspec)
497 pr = PIXBUF_RENDERER(object);
502 pr->zoom_min = g_value_get_double(value);
505 pr->zoom_max = g_value_get_double(value);
507 case PROP_ZOOM_QUALITY:
508 pr->zoom_quality = static_cast<GdkInterpType>(g_value_get_uint(value));
510 case PROP_ZOOM_2PASS:
511 pr->zoom_2pass = g_value_get_boolean(value);
513 case PROP_ZOOM_EXPAND:
514 pr->zoom_expand = g_value_get_boolean(value);
516 case PROP_SCROLL_RESET:
517 pr->scroll_reset = static_cast<PixbufRendererScrollResetType>(g_value_get_uint(value));
519 case PROP_DELAY_FLIP:
520 pr->delay_flip = g_value_get_boolean(value);
523 pr->loading = g_value_get_boolean(value);
526 pr->complete = g_value_get_boolean(value);
528 case PROP_CACHE_SIZE_DISPLAY:
530 case PROP_CACHE_SIZE_TILES:
531 pr->source_tiles_cache_size = g_value_get_uint(value);
533 case PROP_WINDOW_FIT:
534 pr->window_fit = g_value_get_boolean(value);
536 case PROP_WINDOW_LIMIT:
537 pr->window_limit = g_value_get_boolean(value);
539 case PROP_WINDOW_LIMIT_VALUE:
540 pr->window_limit_size = g_value_get_uint(value);
542 case PROP_AUTOFIT_LIMIT:
543 pr->autofit_limit = g_value_get_boolean(value);
545 case PROP_AUTOFIT_LIMIT_VALUE:
546 pr->autofit_limit_size = g_value_get_uint(value);
548 case PROP_ENLARGEMENT_LIMIT_VALUE:
549 pr->enlargement_limit_size = g_value_get_uint(value);
552 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
557 static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
558 GValue *value, GParamSpec *pspec)
562 pr = PIXBUF_RENDERER(object);
567 g_value_set_double(value, pr->zoom_min);
570 g_value_set_double(value, pr->zoom_max);
572 case PROP_ZOOM_QUALITY:
573 g_value_set_uint(value, pr->zoom_quality);
575 case PROP_ZOOM_2PASS:
576 g_value_set_boolean(value, pr->zoom_2pass);
578 case PROP_ZOOM_EXPAND:
579 g_value_set_boolean(value, pr->zoom_expand);
581 case PROP_SCROLL_RESET:
582 g_value_set_uint(value, pr->scroll_reset);
584 case PROP_DELAY_FLIP:
585 g_value_set_boolean(value, pr->delay_flip);
588 g_value_set_boolean(value, pr->loading);
591 g_value_set_boolean(value, pr->complete);
593 case PROP_CACHE_SIZE_DISPLAY:
595 case PROP_CACHE_SIZE_TILES:
596 g_value_set_uint(value, pr->source_tiles_cache_size);
598 case PROP_WINDOW_FIT:
599 g_value_set_boolean(value, pr->window_fit);
601 case PROP_WINDOW_LIMIT:
602 g_value_set_boolean(value, pr->window_limit);
604 case PROP_WINDOW_LIMIT_VALUE:
605 g_value_set_uint(value, pr->window_limit_size);
607 case PROP_AUTOFIT_LIMIT:
608 g_value_set_boolean(value, pr->autofit_limit);
610 case PROP_AUTOFIT_LIMIT_VALUE:
611 g_value_set_uint(value, pr->autofit_limit_size);
613 case PROP_ENLARGEMENT_LIMIT_VALUE:
614 g_value_set_uint(value, pr->enlargement_limit_size);
617 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
624 *-------------------------------------------------------------------
626 *-------------------------------------------------------------------
629 static void widget_set_cursor(GtkWidget *widget, gint icon)
634 if (!gtk_widget_get_window(widget)) return;
636 display = gdk_display_get_default();
644 cursor = gdk_cursor_new_for_display(display, static_cast<GdkCursorType>(icon));
647 gdk_window_set_cursor(gtk_widget_get_window(widget), cursor);
649 if (cursor) g_object_unref(G_OBJECT(cursor));
652 gboolean pr_clip_region(gint x, gint y, gint w, gint h,
653 gint clip_x, gint clip_y, gint clip_w, gint clip_h,
654 gint *rx, gint *ry, gint *rw, gint *rh)
656 if (clip_x + clip_w <= x ||
658 clip_y + clip_h <= y ||
664 *rx = MAX(x, clip_x);
665 *rw = MIN((x + w), (clip_x + clip_w)) - *rx;
667 *ry = MAX(y, clip_y);
668 *rh = MIN((y + h), (clip_y + clip_h)) - *ry;
673 static gboolean pr_parent_window_sizable(PixbufRenderer *pr)
675 GdkWindowState state;
677 if (!pr->parent_window) return FALSE;
678 if (!pr->window_fit) return FALSE;
679 if (!gtk_widget_get_window(GTK_WIDGET(pr))) return FALSE;
681 if (!gtk_widget_get_window(pr->parent_window)) return FALSE;
682 state = gdk_window_get_state(gtk_widget_get_window(pr->parent_window));
683 if (state & GDK_WINDOW_STATE_MAXIMIZED) return FALSE;
688 static gboolean pr_parent_window_resize(PixbufRenderer *pr, gint w, gint h)
694 GtkAllocation widget_allocation;
695 GtkAllocation parent_allocation;
697 if (!pr_parent_window_sizable(pr)) return FALSE;
699 if (pr->window_limit)
701 gint sw = gdk_screen_width() * pr->window_limit_size / 100;
702 gint sh = gdk_screen_height() * pr->window_limit_size / 100;
708 widget = GTK_WIDGET(pr);
709 parent = GTK_WIDGET(pr->parent_window);
711 gtk_widget_get_allocation(widget, &widget_allocation);
712 gtk_widget_get_allocation(parent, &parent_allocation);
714 w += (parent_allocation.width - widget_allocation.width);
715 h += (parent_allocation.height - widget_allocation.height);
717 ww = gdk_window_get_width(gtk_widget_get_window(parent));
718 wh = gdk_window_get_height(gtk_widget_get_window(parent));
719 if (w == ww && h == wh) return FALSE;
721 gdk_window_resize(gtk_widget_get_window(parent), w, h);
726 void pixbuf_renderer_set_parent(PixbufRenderer *pr, GtkWindow *window)
728 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
729 g_return_if_fail(window == nullptr || GTK_IS_WINDOW(window));
731 pr->parent_window = GTK_WIDGET(window);
734 #pragma GCC diagnostic push
735 #pragma GCC diagnostic ignored "-Wunused-function"
736 GtkWindow *pixbuf_renderer_get_parent_unused(PixbufRenderer *pr)
738 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
740 return GTK_WINDOW(pr->parent_window);
742 #pragma GCC diagnostic pop
746 *-------------------------------------------------------------------
748 *-------------------------------------------------------------------
752 gint pixbuf_renderer_overlay_add(PixbufRenderer *pr, GdkPixbuf *pixbuf, gint x, gint y,
753 OverlayRendererFlags flags)
755 /* let's assume both renderers returns the same value */
756 if (pr->renderer2) pr->renderer2->overlay_add(pr->renderer2, pixbuf, x, y, flags);
757 return pr->renderer->overlay_add(pr->renderer, pixbuf, x, y, flags);
760 void pixbuf_renderer_overlay_set(PixbufRenderer *pr, gint id, GdkPixbuf *pixbuf, gint x, gint y)
762 pr->renderer->overlay_set(pr->renderer, id, pixbuf, x, y);
763 if (pr->renderer2) pr->renderer2->overlay_set(pr->renderer2, id, pixbuf, x, y);
766 gboolean pixbuf_renderer_overlay_get(PixbufRenderer *pr, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
768 if (pr->renderer2) pr->renderer2->overlay_get(pr->renderer2, id, pixbuf, x, y);
769 return pr->renderer->overlay_get(pr->renderer, id, pixbuf, x, y);
772 void pixbuf_renderer_overlay_remove(PixbufRenderer *pr, gint id)
774 pr->renderer->overlay_set(pr->renderer, id, nullptr, 0, 0);
775 if (pr->renderer2) pr->renderer2->overlay_set(pr->renderer2, id, nullptr, 0, 0);
779 *-------------------------------------------------------------------
781 *-------------------------------------------------------------------
785 static gboolean pr_scroller_update_cb(gpointer data)
787 auto pr = static_cast<PixbufRenderer *>(data);
793 /* this was a simple scroll by difference between scroller and mouse position,
794 * but all this math results in a smoother result and accounts for a dead zone.
797 if (abs(pr->scroller_xpos - pr->scroller_x) < PR_SCROLLER_DEAD_ZONE)
803 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
804 x = (pr->scroller_xpos - pr->scroller_x) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
805 x += (x > 0) ? -shift : shift;
808 if (abs(pr->scroller_ypos - pr->scroller_y) < PR_SCROLLER_DEAD_ZONE)
814 gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
815 y = (pr->scroller_ypos - pr->scroller_y) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
816 y += (y > 0) ? -shift : shift;
819 if (abs(x) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
825 xinc = pr->scroller_xinc;
829 if (xinc < 0) xinc = 0;
830 if (x < xinc) xinc = x;
831 if (x > xinc) xinc = MIN(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
835 if (xinc > 0) xinc = 0;
836 if (x > xinc) xinc = x;
837 if (x < xinc) xinc = MAX(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
841 if (abs(y) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
847 yinc = pr->scroller_yinc;
851 if (yinc < 0) yinc = 0;
852 if (y < yinc) yinc = y;
853 if (y > yinc) yinc = MIN(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
857 if (yinc > 0) yinc = 0;
858 if (y > yinc) yinc = y;
859 if (y < yinc) yinc = MAX(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
863 pr->scroller_xinc = xinc;
864 pr->scroller_yinc = yinc;
866 xinc = xinc / PR_SCROLLER_UPDATES_PER_SEC;
867 yinc = yinc / PR_SCROLLER_UPDATES_PER_SEC;
869 pixbuf_renderer_scroll(pr, xinc, yinc);
874 static void pr_scroller_timer_set(PixbufRenderer *pr, gboolean start)
878 g_source_remove(pr->scroller_id);
884 pr->scroller_id = g_timeout_add(1000 / PR_SCROLLER_UPDATES_PER_SEC,
885 pr_scroller_update_cb, pr);
889 static void pr_scroller_start(PixbufRenderer *pr, gint x, gint y)
891 if (pr->scroller_overlay == -1)
898 pixbuf = gdk_pixbuf_new_from_resource(GQ_RESOURCE_PATH_ICONS "/" PIXBUF_INLINE_SCROLLER ".png", nullptr);
900 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 32, 32);
901 gdk_pixbuf_fill(pixbuf, 0x000000ff);
903 w = gdk_pixbuf_get_width(pixbuf);
904 h = gdk_pixbuf_get_height(pixbuf);
906 pr->scroller_overlay = pixbuf_renderer_overlay_add(pr, pixbuf, x - w / 2, y - h / 2, OVL_NORMAL);
907 g_object_unref(pixbuf);
912 pr->scroller_xpos = x;
913 pr->scroller_ypos = y;
915 pr_scroller_timer_set(pr, TRUE);
918 static void pr_scroller_stop(PixbufRenderer *pr)
920 if (!pr->scroller_id) return;
922 pixbuf_renderer_overlay_remove(pr, pr->scroller_overlay);
923 pr->scroller_overlay = -1;
925 pr_scroller_timer_set(pr, FALSE);
929 *-------------------------------------------------------------------
931 *-------------------------------------------------------------------
934 void pixbuf_renderer_set_color(PixbufRenderer *pr, GdkRGBA *color)
936 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
940 pr->color.red = color->red;
941 pr->color.green = color->green;
942 pr->color.blue = color->blue;
951 pr->renderer->update_viewport(pr->renderer);
952 if (pr->renderer2) pr->renderer2->update_viewport(pr->renderer2);
956 *-------------------------------------------------------------------
958 *-------------------------------------------------------------------
961 static void pr_source_tile_free(SourceTile *st)
965 if (st->pixbuf) g_object_unref(st->pixbuf);
969 static void pr_source_tile_free_all(PixbufRenderer *pr)
971 g_list_free_full(pr->source_tiles, reinterpret_cast<GDestroyNotify>(pr_source_tile_free));
972 pr->source_tiles = nullptr;
975 static void pr_source_tile_unset(PixbufRenderer *pr)
977 pr_source_tile_free_all(pr);
978 pr->source_tiles_enabled = FALSE;
981 static gboolean pr_source_tile_visible(PixbufRenderer *pr, SourceTile *st)
988 if (!st) return FALSE;
992 x2 = pr->x_scroll + pr->vis_width;
993 y2 = pr->y_scroll + pr->vis_height;
995 return static_cast<gdouble>(st->x) * pr->scale <= static_cast<gdouble>(x2) &&
996 static_cast<gdouble>(st->x + pr->source_tile_width) * pr->scale >= static_cast<gdouble>(x1) &&
997 static_cast<gdouble>(st->y) * pr->scale <= static_cast<gdouble>(y2) &&
998 static_cast<gdouble>(st->y + pr->source_tile_height) * pr->scale >= static_cast<gdouble>(y1);
1001 static SourceTile *pr_source_tile_new(PixbufRenderer *pr, gint x, gint y)
1003 SourceTile *st = nullptr;
1006 g_return_val_if_fail(pr->source_tile_width >= 1 && pr->source_tile_height >= 1, NULL);
1008 if (pr->source_tiles_cache_size < 4) pr->source_tiles_cache_size = 4;
1010 count = g_list_length(pr->source_tiles);
1011 if (count >= pr->source_tiles_cache_size)
1015 work = g_list_last(pr->source_tiles);
1016 while (work && count >= pr->source_tiles_cache_size)
1020 needle = static_cast<SourceTile *>(work->data);
1023 if (!pr_source_tile_visible(pr, needle))
1025 pr->source_tiles = g_list_remove(pr->source_tiles, needle);
1027 if (pr->func_tile_dispose)
1029 pr->func_tile_dispose(pr, needle->x, needle->y,
1030 pr->source_tile_width, pr->source_tile_height,
1031 needle->pixbuf, pr->func_tile_data);
1040 pr_source_tile_free(needle);
1050 st = g_new0(SourceTile, 1);
1051 st->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8,
1052 pr->source_tile_width, pr->source_tile_height);
1055 st->x = ROUND_DOWN(x, pr->source_tile_width);
1056 st->y = ROUND_DOWN(y, pr->source_tile_height);
1059 pr->source_tiles = g_list_prepend(pr->source_tiles, st);
1064 static SourceTile *pr_source_tile_request(PixbufRenderer *pr, gint x, gint y)
1068 st = pr_source_tile_new(pr, x, y);
1069 if (!st) return nullptr;
1071 if (pr->func_tile_request &&
1072 pr->func_tile_request(pr, st->x, st->y,
1073 pr->source_tile_width, pr->source_tile_height, st->pixbuf, pr->func_tile_data))
1078 pr->renderer->invalidate_region(pr->renderer, st->x * pr->scale, st->y * pr->scale,
1079 pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
1080 if (pr->renderer2) pr->renderer2->invalidate_region(pr->renderer2, st->x * pr->scale, st->y * pr->scale,
1081 pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
1085 static SourceTile *pr_source_tile_find(PixbufRenderer *pr, gint x, gint y)
1089 work = pr->source_tiles;
1092 auto st = static_cast<SourceTile *>(work->data);
1094 if (x >= st->x && x < st->x + pr->source_tile_width &&
1095 y >= st->y && y < st->y + pr->source_tile_height)
1097 if (work != pr->source_tiles)
1099 pr->source_tiles = g_list_remove_link(pr->source_tiles, work);
1100 pr->source_tiles = g_list_concat(work, pr->source_tiles);
1111 GList *pr_source_tile_compute_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h, gboolean request)
1115 GList *list = nullptr;
1121 if (w > pr->image_width) w = pr->image_width;
1122 if (h > pr->image_height) h = pr->image_height;
1124 sx = ROUND_DOWN(x, pr->source_tile_width);
1125 sy = ROUND_DOWN(y, pr->source_tile_height);
1127 for (x1 = sx; x1 < x + w; x1+= pr->source_tile_width)
1129 for (y1 = sy; y1 < y + h; y1 += pr->source_tile_height)
1133 st = pr_source_tile_find(pr, x1, y1);
1134 if (!st && request) st = pr_source_tile_request(pr, x1, y1);
1136 if (st) list = g_list_prepend(list, st);
1140 return g_list_reverse(list);
1143 static void pr_source_tile_changed(PixbufRenderer *pr, gint x, gint y, gint width, gint height)
1147 if (width < 1 || height < 1) return;
1149 work = pr->source_tiles;
1158 st = static_cast<SourceTile *>(work->data);
1161 if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1162 x, y, width, height,
1163 &rx, &ry, &rw, &rh))
1167 pixbuf = gdk_pixbuf_new_subpixbuf(st->pixbuf, rx - st->x, ry - st->y, rw, rh);
1168 if (pr->func_tile_request &&
1169 pr->func_tile_request(pr, rx, ry, rw, rh, pixbuf, pr->func_tile_data))
1171 pr->renderer->invalidate_region(pr->renderer, rx * pr->scale, ry * pr->scale,
1172 rw * pr->scale, rh * pr->scale);
1173 if (pr->renderer2) pr->renderer2->invalidate_region(pr->renderer2, rx * pr->scale, ry * pr->scale,
1174 rw * pr->scale, rh * pr->scale);
1176 g_object_unref(pixbuf);
1181 void pixbuf_renderer_set_tiles(PixbufRenderer *pr, gint width, gint height,
1182 gint tile_width, gint tile_height, gint cache_size,
1183 PixbufRendererTileRequestFunc func_request,
1184 PixbufRendererTileDisposeFunc func_dispose,
1188 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1189 g_return_if_fail(tile_width >= 32 && tile_height >= 32);
1190 g_return_if_fail(width >= 32 && height > 32);
1191 g_return_if_fail(func_request != nullptr);
1193 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1194 pr->pixbuf = nullptr;
1196 pr_source_tile_unset(pr);
1198 if (cache_size < 4) cache_size = 4;
1200 pr->source_tiles_enabled = TRUE;
1201 pr->source_tiles_cache_size = cache_size;
1202 pr->source_tile_width = tile_width;
1203 pr->source_tile_height = tile_height;
1205 pr->image_width = width;
1206 pr->image_height = height;
1208 pr->func_tile_request = func_request;
1209 pr->func_tile_dispose = func_dispose;
1210 pr->func_tile_data = user_data;
1212 pr_stereo_temp_disable(pr, TRUE);
1213 pr_zoom_sync(pr, zoom, static_cast<PrZoomFlags>(PR_ZOOM_FORCE | PR_ZOOM_NEW), 0, 0);
1216 void pixbuf_renderer_set_tiles_size(PixbufRenderer *pr, gint width, gint height)
1218 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1219 g_return_if_fail(width >= 32 && height > 32);
1221 if (!pr->source_tiles_enabled) return;
1222 if (pr->image_width == width && pr->image_height == height) return;
1224 pr->image_width = width;
1225 pr->image_height = height;
1227 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
1230 gint pixbuf_renderer_get_tiles(PixbufRenderer *pr)
1232 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
1234 return pr->source_tiles_enabled;
1237 static void pr_zoom_adjust_real(PixbufRenderer *pr, gdouble increment,
1238 PrZoomFlags flags, gint x, gint y)
1240 gdouble zoom = pr->zoom;
1242 if (increment == 0.0) return;
1246 if (pr->scale < 1.0)
1248 zoom = 0.0 - 1.0 / pr->scale;
1256 if (options->image.zoom_style == ZOOM_GEOMETRIC)
1258 if (increment < 0.0)
1262 if (zoom / -(increment - 1.0) < 1.0)
1264 zoom = 1.0 / (zoom / (increment - 1.0));
1268 zoom = zoom / -(increment - 1.0) ;
1273 zoom = zoom * -(increment - 1.0);
1280 if (zoom / (increment + 1.0) > -1.0)
1282 zoom = -(1.0 / (zoom / (increment + 1.0)));
1286 zoom = zoom / (increment + 1.0) ;
1291 zoom = zoom * (increment + 1.0);
1297 if (increment < 0.0)
1299 if (zoom >= 1.0 && zoom + increment < 1.0)
1301 zoom = zoom + increment - 2.0;
1305 zoom = zoom + increment;
1310 if (zoom <= -1.0 && zoom + increment > -1.0)
1312 zoom = zoom + increment + 2.0;
1316 zoom = zoom + increment;
1321 pr_zoom_sync(pr, zoom, flags, x, y);
1326 *-------------------------------------------------------------------
1328 *-------------------------------------------------------------------
1331 static void pr_update_signal(PixbufRenderer *pr)
1333 DEBUG_1("%s pixbuf renderer updated - started drawing %p, img: %dx%d", get_exec_time(), (void *)pr, pr->image_width, pr->image_height);
1334 pr->debug_updated = TRUE;
1337 static void pr_zoom_signal(PixbufRenderer *pr)
1339 g_signal_emit(pr, signals[SIGNAL_ZOOM], 0, pr->zoom);
1342 static void pr_clicked_signal(PixbufRenderer *pr, GdkEventButton *bevent)
1344 g_signal_emit(pr, signals[SIGNAL_CLICKED], 0, bevent);
1347 static void pr_scroll_notify_signal(PixbufRenderer *pr)
1349 g_signal_emit(pr, signals[SIGNAL_SCROLL_NOTIFY], 0);
1352 void pr_render_complete_signal(PixbufRenderer *pr)
1356 g_signal_emit(pr, signals[SIGNAL_RENDER_COMPLETE], 0);
1357 g_object_set(G_OBJECT(pr), "complete", TRUE, NULL);
1359 if (pr->debug_updated)
1361 DEBUG_1("%s pixbuf renderer done %p", get_exec_time(), (void *)pr);
1362 pr->debug_updated = FALSE;
1366 static void pr_drag_signal(PixbufRenderer *pr, GdkEventMotion *event)
1368 g_signal_emit(pr, signals[SIGNAL_DRAG], 0, event);
1371 static void pr_update_pixel_signal(PixbufRenderer *pr)
1373 g_signal_emit(pr, signals[SIGNAL_UPDATE_PIXEL], 0);
1377 *-------------------------------------------------------------------
1379 *-------------------------------------------------------------------
1383 void pr_tile_coords_map_orientation(gint orientation,
1384 gdouble tile_x, gdouble tile_y, /* coordinates of the tile */
1385 gdouble image_w, gdouble image_h,
1386 gdouble tile_w, gdouble tile_h,
1387 gdouble *res_x, gdouble *res_y)
1391 switch (orientation)
1393 case EXIF_ORIENTATION_TOP_LEFT:
1394 /* normal -- nothing to do */
1396 case EXIF_ORIENTATION_TOP_RIGHT:
1398 *res_x = image_w - tile_x - tile_w;
1400 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1402 *res_x = image_w - tile_x - tile_w;
1403 *res_y = image_h - tile_y - tile_h;
1405 case EXIF_ORIENTATION_BOTTOM_LEFT:
1407 *res_y = image_h - tile_y - tile_h;
1409 case EXIF_ORIENTATION_LEFT_TOP:
1413 case EXIF_ORIENTATION_RIGHT_TOP:
1414 /* rotated -90 (270) */
1416 *res_y = image_w - tile_x - tile_w;
1418 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1419 *res_x = image_h - tile_y - tile_h;
1420 *res_y = image_w - tile_x - tile_w;
1422 case EXIF_ORIENTATION_LEFT_BOTTOM:
1424 *res_x = image_h - tile_y - tile_h;
1428 /* The other values are out of range */
1433 void pr_tile_region_map_orientation(gint orientation,
1434 gint area_x, gint area_y, /* coordinates of the area inside tile */
1435 gint tile_w, gint tile_h,
1436 gint area_w, gint area_h,
1437 gint *res_x, gint *res_y,
1438 gint *res_w, gint *res_h)
1445 switch (orientation)
1447 case EXIF_ORIENTATION_TOP_LEFT:
1448 /* normal -- nothing to do */
1450 case EXIF_ORIENTATION_TOP_RIGHT:
1452 *res_x = tile_w - area_x - area_w;
1454 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1456 *res_x = tile_w - area_x - area_w;
1457 *res_y = tile_h - area_y - area_h;
1459 case EXIF_ORIENTATION_BOTTOM_LEFT:
1461 *res_y = tile_h - area_y - area_h;
1463 case EXIF_ORIENTATION_LEFT_TOP:
1469 case EXIF_ORIENTATION_RIGHT_TOP:
1470 /* rotated -90 (270) */
1472 *res_y = tile_w - area_x - area_w;
1476 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1477 *res_x = tile_h - area_y - area_h;
1478 *res_y = tile_w - area_x - area_w;
1482 case EXIF_ORIENTATION_LEFT_BOTTOM:
1484 *res_x = tile_h - area_y - area_h;
1490 /* The other values are out of range */
1495 void pr_coords_map_orientation_reverse(gint orientation,
1496 gint area_x, gint area_y,
1497 gint tile_w, gint tile_h,
1498 gint area_w, gint area_h,
1499 gint *res_x, gint *res_y,
1500 gint *res_w, gint *res_h)
1507 switch (orientation)
1509 case EXIF_ORIENTATION_TOP_LEFT:
1510 /* normal -- nothing to do */
1512 case EXIF_ORIENTATION_TOP_RIGHT:
1514 *res_x = tile_w - area_x - area_w;
1516 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1518 *res_x = tile_w - area_x - area_w;
1519 *res_y = tile_h - area_y - area_h;
1521 case EXIF_ORIENTATION_BOTTOM_LEFT:
1523 *res_y = tile_h - area_y - area_h;
1525 case EXIF_ORIENTATION_LEFT_TOP:
1531 case EXIF_ORIENTATION_RIGHT_TOP:
1532 /* rotated -90 (270) */
1533 *res_x = tile_w - area_y - area_h;
1538 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1539 *res_x = tile_w - area_y - area_h;
1540 *res_y = tile_h - area_x - area_w;
1544 case EXIF_ORIENTATION_LEFT_BOTTOM:
1547 *res_y = tile_h - area_x - area_w;
1552 /* The other values are out of range */
1559 static void pixbuf_renderer_sync_scroll_center(PixbufRenderer *pr)
1563 if (!pr->width || !pr->height) return;
1566 * Update norm_center only if the image is bigger than the window.
1567 * With this condition the stored center survives also a temporary display
1568 * of the "broken image" icon.
1571 if (pr->width > pr->viewport_width)
1573 src_x = pr->x_scroll + pr->vis_width / 2;
1574 pr->norm_center_x = static_cast<gdouble>(src_x) / pr->width;
1577 if (pr->height > pr->viewport_height)
1579 src_y = pr->y_scroll + pr->vis_height / 2;
1580 pr->norm_center_y = static_cast<gdouble>(src_y) / pr->height;
1585 static gboolean pr_scroll_clamp(PixbufRenderer *pr)
1590 if (pr->zoom == 0.0)
1598 old_xs = pr->x_scroll;
1599 old_ys = pr->y_scroll;
1601 if (pr->x_offset > 0)
1607 pr->x_scroll = CLAMP(pr->x_scroll, 0, pr->width - pr->vis_width);
1610 if (pr->y_offset > 0)
1616 pr->y_scroll = CLAMP(pr->y_scroll, 0, pr->height - pr->vis_height);
1619 pixbuf_renderer_sync_scroll_center(pr);
1621 return (old_xs != pr->x_scroll || old_ys != pr->y_scroll);
1624 static gboolean pr_size_clamp(PixbufRenderer *pr)
1629 old_vw = pr->vis_width;
1630 old_vh = pr->vis_height;
1632 if (pr->width < pr->viewport_width)
1634 pr->vis_width = pr->width;
1635 pr->x_offset = (pr->viewport_width - pr->width) / 2;
1639 pr->vis_width = pr->viewport_width;
1643 if (pr->height < pr->viewport_height)
1645 pr->vis_height = pr->height;
1646 pr->y_offset = (pr->viewport_height - pr->height) / 2;
1650 pr->vis_height = pr->viewport_height;
1654 pixbuf_renderer_sync_scroll_center(pr);
1656 return (old_vw != pr->vis_width || old_vh != pr->vis_height);
1659 static gboolean pr_zoom_clamp(PixbufRenderer *pr, gdouble zoom,
1665 gboolean force = !!(flags & PR_ZOOM_FORCE);
1666 gboolean new_z = !!(flags & PR_ZOOM_NEW);
1668 zoom = CLAMP(zoom, pr->zoom_min, pr->zoom_max);
1670 if (pr->zoom == zoom && !force) return FALSE;
1672 w = pr->image_width;
1673 h = pr->image_height;
1675 if (zoom == 0.0 && !pr->pixbuf)
1679 else if (zoom == 0.0)
1685 sizeable = (new_z && pr_parent_window_sizable(pr));
1689 max_w = gdk_screen_width();
1690 max_h = gdk_screen_height();
1692 if (pr->window_limit)
1694 max_w = max_w * pr->window_limit_size / 100;
1695 max_h = max_h * pr->window_limit_size / 100;
1700 max_w = pr->viewport_width;
1701 max_h = pr->viewport_height;
1704 if ((pr->zoom_expand && !sizeable) || w > max_w || h > max_h)
1706 if (static_cast<gdouble>(max_w) / w > static_cast<gdouble>(max_h) / h / pr->aspect_ratio)
1708 scale = static_cast<gdouble>(max_h) / h / pr->aspect_ratio;
1710 w = w * scale + 0.5;
1711 if (w > max_w) w = max_w;
1715 scale = static_cast<gdouble>(max_w) / w;
1717 h = h * scale * pr->aspect_ratio + 0.5;
1718 if (h > max_h) h = max_h;
1721 if (pr->autofit_limit)
1723 gdouble factor = static_cast<gdouble>(pr->autofit_limit_size) / 100;
1724 w = w * factor + 0.5;
1725 h = h * factor + 0.5;
1726 scale = scale * factor;
1729 if (pr->zoom_expand)
1731 gdouble factor = static_cast<gdouble>(pr->enlargement_limit_size) / 100;
1734 w = w * factor / scale;
1735 h = h * factor / scale;
1748 else if (zoom > 0.0) /* zoom orig, in */
1752 h = h * scale * pr->aspect_ratio;
1756 scale = 1.0 / (0.0 - zoom);
1758 h = h * scale * pr->aspect_ratio;
1769 static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
1770 PrZoomFlags flags, gint px, gint py)
1775 gboolean center_point = !!(flags & PR_ZOOM_CENTER);
1776 gboolean force = !!(flags & PR_ZOOM_FORCE);
1777 gboolean new_z = !!(flags & PR_ZOOM_NEW);
1778 gboolean lazy = !!(flags & PR_ZOOM_LAZY);
1779 PrZoomFlags clamp_flags = flags;
1780 gdouble old_center_x = pr->norm_center_x;
1781 gdouble old_center_y = pr->norm_center_y;
1783 old_scale = pr->scale;
1786 px = CLAMP(px, 0, pr->width);
1787 py = CLAMP(py, 0, pr->height);
1788 old_cx = pr->x_scroll + (px - pr->x_offset);
1789 old_cy = pr->y_scroll + (py - pr->y_offset);
1794 old_cx = pr->x_scroll + pr->vis_width / 2;
1795 old_cy = pr->y_scroll + pr->vis_height / 2;
1798 if (force) clamp_flags = static_cast<PrZoomFlags>(clamp_flags | PR_ZOOM_INVALIDATE);
1799 if (!pr_zoom_clamp(pr, zoom, clamp_flags)) return;
1801 (void) pr_size_clamp(pr);
1802 (void) pr_parent_window_resize(pr, pr->width, pr->height);
1806 switch (pr->scroll_reset)
1808 case PR_SCROLL_RESET_NOCHANGE:
1809 /* maintain old scroll position */
1810 pr->x_scroll = (static_cast<gdouble>(pr->image_width) * old_center_x * pr->scale) - pr->vis_width / 2.0;
1811 pr->y_scroll = (static_cast<gdouble>(pr->image_height) * old_center_y * pr->scale * pr->aspect_ratio) - pr->vis_height / 2.0;
1813 case PR_SCROLL_RESET_CENTER:
1814 /* center new image */
1815 pr->x_scroll = (static_cast<gdouble>(pr->image_width) / 2.0 * pr->scale) - pr->vis_width / 2.0;
1816 pr->y_scroll = (static_cast<gdouble>(pr->image_height) / 2.0 * pr->scale * pr->aspect_ratio) - pr->vis_height / 2.0;
1818 case PR_SCROLL_RESET_TOPLEFT:
1820 /* reset to upper left */
1828 /* user zoom does not force, so keep visible center point */
1831 pr->x_scroll = old_cx / old_scale * pr->scale - (px - pr->x_offset);
1832 pr->y_scroll = old_cy / old_scale * pr->scale * pr->aspect_ratio - (py - pr->y_offset);
1836 pr->x_scroll = old_cx / old_scale * pr->scale - (pr->vis_width / 2.0);
1837 pr->y_scroll = old_cy / old_scale * pr->scale * pr->aspect_ratio - (pr->vis_height / 2.0);
1841 pr_scroll_clamp(pr);
1843 pr->renderer->update_zoom(pr->renderer, lazy);
1844 if (pr->renderer2) pr->renderer2->update_zoom(pr->renderer2, lazy);
1846 pr_scroll_notify_signal(pr);
1848 pr_update_signal(pr);
1851 static void pr_size_sync(PixbufRenderer *pr, gint new_width, gint new_height)
1853 gboolean zoom_changed = FALSE;
1855 gint new_viewport_width = new_width;
1856 gint new_viewport_height = new_height;
1858 if (!pr->stereo_temp_disable)
1860 if (pr->stereo_mode & PR_STEREO_HORIZ)
1862 new_viewport_width = new_width / 2;
1864 else if (pr->stereo_mode & PR_STEREO_VERT)
1866 new_viewport_height = new_height / 2;
1868 else if (pr->stereo_mode & PR_STEREO_FIXED)
1870 new_viewport_width = pr->stereo_fixed_width;
1871 new_viewport_height = pr->stereo_fixed_height;
1875 if (pr->window_width == new_width && pr->window_height == new_height &&
1876 pr->viewport_width == new_viewport_width && pr->viewport_height == new_viewport_height) return;
1878 pr->window_width = new_width;
1879 pr->window_height = new_height;
1880 pr->viewport_width = new_viewport_width;
1881 pr->viewport_height = new_viewport_height;
1883 if (pr->zoom == 0.0)
1885 gdouble old_scale = pr->scale;
1886 pr_zoom_clamp(pr, 0.0, PR_ZOOM_FORCE);
1887 zoom_changed = (old_scale != pr->scale);
1891 pr_scroll_clamp(pr);
1895 pr->renderer->update_zoom(pr->renderer, FALSE);
1896 if (pr->renderer2) pr->renderer2->update_zoom(pr->renderer2, FALSE);
1899 pr->renderer->update_viewport(pr->renderer);
1900 if (pr->renderer2) pr->renderer2->update_viewport(pr->renderer2);
1903 /* ensure scroller remains visible */
1904 if (pr->scroller_overlay != -1)
1906 gboolean update = FALSE;
1908 if (pr->scroller_x > new_width)
1910 pr->scroller_x = new_width;
1911 pr->scroller_xpos = new_width;
1914 if (pr->scroller_y > new_height)
1916 pr->scroller_y = new_height;
1917 pr->scroller_ypos = new_height;
1925 if (pixbuf_renderer_overlay_get(pr, pr->scroller_overlay, &pixbuf, nullptr, nullptr))
1930 w = gdk_pixbuf_get_width(pixbuf);
1931 h = gdk_pixbuf_get_height(pixbuf);
1932 pixbuf_renderer_overlay_set(pr, pr->scroller_overlay, pixbuf,
1933 pr->scroller_x - w / 2, pr->scroller_y - h / 2);
1938 pr_scroll_notify_signal(pr);
1939 if (zoom_changed) pr_zoom_signal(pr);
1940 pr_update_signal(pr);
1943 static void pr_size_cb(GtkWidget *, GtkAllocation *allocation, gpointer data)
1945 auto pr = static_cast<PixbufRenderer *>(data);
1947 pr_size_sync(pr, allocation->width, allocation->height);
1951 *-------------------------------------------------------------------
1953 *-------------------------------------------------------------------
1956 void pixbuf_renderer_scroll(PixbufRenderer *pr, gint x, gint y)
1963 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
1965 if (!pr->pixbuf && !pr->source_tiles_enabled) return;
1967 old_x = pr->x_scroll;
1968 old_y = pr->y_scroll;
1973 pr_scroll_clamp(pr);
1975 pixbuf_renderer_sync_scroll_center(pr);
1977 if (pr->x_scroll == old_x && pr->y_scroll == old_y) return;
1979 pr_scroll_notify_signal(pr);
1981 x_off = pr->x_scroll - old_x;
1982 y_off = pr->y_scroll - old_y;
1984 pr->renderer->scroll(pr->renderer, x_off, y_off);
1985 if (pr->renderer2) pr->renderer2->scroll(pr->renderer2, x_off, y_off);
1988 void pixbuf_renderer_scroll_to_point(PixbufRenderer *pr, gint x, gint y,
1989 gdouble x_align, gdouble y_align)
1996 x_align = CLAMP(x_align, 0.0, 1.0);
1997 y_align = CLAMP(y_align, 0.0, 1.0);
1999 ax = static_cast<gdouble>(pr->vis_width) * x_align;
2000 ay = static_cast<gdouble>(pr->vis_height) * y_align;
2002 px = static_cast<gdouble>(x) * pr->scale - (pr->x_scroll + ax);
2003 py = static_cast<gdouble>(y) * pr->scale * pr->aspect_ratio - (pr->y_scroll + ay);
2005 pixbuf_renderer_scroll(pr, px, py);
2008 /* get or set coordinates of viewport center in the image, in range 0.0 - 1.0 */
2010 void pixbuf_renderer_get_scroll_center(PixbufRenderer *pr, gdouble *x, gdouble *y)
2012 *x = pr->norm_center_x;
2013 *y = pr->norm_center_y;
2016 void pixbuf_renderer_set_scroll_center(PixbufRenderer *pr, gdouble x, gdouble y)
2021 dst_x = x * pr->width - pr->vis_width / 2.0 - pr->x_scroll + CLAMP(pr->subpixel_x_scroll, -1.0, 1.0);
2022 dst_y = y * pr->height - pr->vis_height / 2.0 - pr->y_scroll + CLAMP(pr->subpixel_y_scroll, -1.0, 1.0);
2024 pr->subpixel_x_scroll = dst_x - static_cast<gint>(dst_x);
2025 pr->subpixel_y_scroll = dst_y - static_cast<gint>(dst_y);
2027 pixbuf_renderer_scroll(pr, static_cast<gint>(dst_x), static_cast<gint>(dst_y));
2031 *-------------------------------------------------------------------
2033 *-------------------------------------------------------------------
2036 static gboolean pr_mouse_motion_cb(GtkWidget *widget, GdkEventMotion *event, gpointer)
2043 /* This is a hack, but work far the best, at least for single pointer systems.
2044 * See https://bugzilla.gnome.org/show_bug.cgi?id=587714 for more. */
2047 seat = gdk_display_get_default_seat(gdk_window_get_display(event->window));
2048 device = gdk_seat_get_pointer(seat);
2050 gdk_window_get_device_position(event->window, device, &x, &y, nullptr);
2055 pr = PIXBUF_RENDERER(widget);
2057 if (pr->scroller_id)
2059 pr->scroller_xpos = event->x;
2060 pr->scroller_ypos = event->y;
2063 pr->x_mouse = event->x;
2064 pr->y_mouse = event->y;
2065 pr_update_pixel_signal(pr);
2067 if (!pr->in_drag || !gdk_pointer_is_grabbed()) return FALSE;
2069 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
2075 widget_set_cursor(widget, GDK_FLEUR);
2078 if (event->state & GDK_CONTROL_MASK)
2080 accel = PR_PAN_SHIFT_MULTIPLIER;
2087 /* do the scroll - not when drawing rectangle*/
2088 if (!options->draw_rectangle)
2090 pixbuf_renderer_scroll(pr, (pr->drag_last_x - event->x) * accel,
2091 (pr->drag_last_y - event->y) * accel);
2093 pr_drag_signal(pr, event);
2095 pr->drag_last_x = event->x;
2096 pr->drag_last_y = event->y;
2098 /* This is recommended by the GTK+ documentation, but does not work properly.
2099 * Use deprecated way until GTK+ gets a solution for correct motion hint handling:
2100 * https://bugzilla.gnome.org/show_bug.cgi?id=587714
2102 /* gdk_event_request_motions (event); */
2106 static gboolean pr_leave_notify_cb(GtkWidget *widget, GdkEventCrossing *, gpointer)
2110 pr = PIXBUF_RENDERER(widget);
2114 pr_update_pixel_signal(pr);
2118 static gboolean pr_mouse_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer)
2123 pr = PIXBUF_RENDERER(widget);
2125 if (pr->scroller_id) return TRUE;
2127 switch (bevent->button)
2129 case MOUSE_BUTTON_LEFT:
2131 pr->drag_last_x = bevent->x;
2132 pr->drag_last_y = bevent->y;
2134 gdk_pointer_grab(gtk_widget_get_window(widget), FALSE,
2135 static_cast<GdkEventMask>(GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_RELEASE_MASK),
2136 nullptr, nullptr, bevent->time);
2137 gtk_grab_add(widget);
2139 case MOUSE_BUTTON_MIDDLE:
2142 case MOUSE_BUTTON_RIGHT:
2143 pr_clicked_signal(pr, bevent);
2149 parent = gtk_widget_get_parent(widget);
2150 if (widget && gtk_widget_get_can_focus(parent))
2152 gtk_widget_grab_focus(parent);
2158 static gboolean pr_mouse_release_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer)
2162 pr = PIXBUF_RENDERER(widget);
2164 if (pr->scroller_id)
2166 pr_scroller_stop(pr);
2170 if (gdk_pointer_is_grabbed() && gtk_widget_has_grab(GTK_WIDGET(pr)))
2172 gtk_grab_remove(widget);
2173 gdk_pointer_ungrab(bevent->time);
2174 widget_set_cursor(widget, -1);
2177 if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
2179 if (bevent->button == MOUSE_BUTTON_LEFT && (bevent->state & GDK_CONTROL_MASK))
2181 pr_scroller_start(pr, bevent->x, bevent->y);
2183 else if (bevent->button == MOUSE_BUTTON_LEFT || bevent->button == MOUSE_BUTTON_MIDDLE)
2185 pr_clicked_signal(pr, bevent);
2189 pr->in_drag = FALSE;
2194 static gboolean pr_mouse_leave_cb(GtkWidget *widget, GdkEventCrossing *, gpointer)
2198 pr = PIXBUF_RENDERER(widget);
2200 if (pr->scroller_id)
2202 pr->scroller_xpos = pr->scroller_x;
2203 pr->scroller_ypos = pr->scroller_y;
2204 pr->scroller_xinc = 0;
2205 pr->scroller_yinc = 0;
2211 static void pr_mouse_drag_cb(GtkWidget *widget, GdkDragContext *, gpointer)
2215 pr = PIXBUF_RENDERER(widget);
2217 pr->drag_moved = PR_DRAG_SCROLL_THRESHHOLD;
2220 static void pr_signals_connect(PixbufRenderer *pr)
2222 g_signal_connect(G_OBJECT(pr), "motion_notify_event",
2223 G_CALLBACK(pr_mouse_motion_cb), pr);
2224 g_signal_connect(G_OBJECT(pr), "button_press_event",
2225 G_CALLBACK(pr_mouse_press_cb), pr);
2226 g_signal_connect(G_OBJECT(pr), "button_release_event",
2227 G_CALLBACK(pr_mouse_release_cb), pr);
2228 g_signal_connect(G_OBJECT(pr), "leave_notify_event",
2229 G_CALLBACK(pr_mouse_leave_cb), pr);
2230 g_signal_connect(G_OBJECT(pr), "leave_notify_event",
2231 G_CALLBACK(pr_leave_notify_cb), pr);
2233 gtk_widget_set_events(GTK_WIDGET(pr), GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
2234 static_cast<GdkEventMask>(GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_SCROLL_MASK |
2235 GDK_LEAVE_NOTIFY_MASK));
2237 g_signal_connect(G_OBJECT(pr), "drag_begin",
2238 G_CALLBACK(pr_mouse_drag_cb), pr);
2243 *-------------------------------------------------------------------
2245 *-------------------------------------------------------------------
2249 COLOR_BYTES = 3, /* rgb */
2250 RC = 0, /* Red-Cyan */
2251 GM = 1, /* Green-Magenta */
2252 YB = 2 /* Yellow-Blue */
2255 static void pr_create_anaglyph_color(GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h, guint mode)
2268 srs = gdk_pixbuf_get_rowstride(right);
2269 s_pix = gdk_pixbuf_get_pixels(right);
2270 spi = s_pix + (x * COLOR_BYTES);
2272 drs = gdk_pixbuf_get_rowstride(pixbuf);
2273 d_pix = gdk_pixbuf_get_pixels(pixbuf);
2274 dpi = d_pix + x * COLOR_BYTES;
2276 for (i = y; i < y + h; i++)
2278 sp = spi + (i * srs);
2279 dp = dpi + (i * drs);
2280 for (j = 0; j < w; j++)
2285 dp[0] = sp[0]; /* copy red channel */
2301 static void pr_create_anaglyph_gray(GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h, guint mode)
2313 const double gc[3] = {0.299, 0.587, 0.114};
2315 srs = gdk_pixbuf_get_rowstride(right);
2316 s_pix = gdk_pixbuf_get_pixels(right);
2317 spi = s_pix + (x * COLOR_BYTES);
2319 drs = gdk_pixbuf_get_rowstride(pixbuf);
2320 d_pix = gdk_pixbuf_get_pixels(pixbuf);
2321 dpi = d_pix + x * COLOR_BYTES;
2323 for (i = y; i < y + h; i++)
2325 sp = spi + (i * srs);
2326 dp = dpi + (i * drs);
2327 for (j = 0; j < w; j++)
2329 guchar g1 = dp[0] * gc[0] + dp[1] * gc[1] + dp[2] * gc[2];
2330 guchar g2 = sp[0] * gc[0] + sp[1] * gc[1] + sp[2] * gc[2];
2334 dp[0] = g2; /* red channel from sp */
2335 dp[1] = g1; /* green and blue from dp */
2355 static void pr_create_anaglyph_dubois(GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h, guint mode)
2368 double pr_dubois_matrix[3][6];
2369 static const double pr_dubois_matrix_RC[3][6] = {
2370 { 0.456, 0.500, 0.176, -0.043, -0.088, -0.002},
2371 {-0.040, -0.038, -0.016, 0.378, 0.734, -0.018},
2372 {-0.015, -0.021, -0.005, -0.072, -0.113, 1.226}};
2373 static const double pr_dubois_matrix_GM[3][6] = {
2374 {-0.062, -0.158, -0.039, 0.529, 0.705, 0.024},
2375 { 0.284, 0.668, 0.143, -0.016, -0.015, -0.065},
2376 {-0.015, -0.027, 0.021, 0.009, 0.075, 0.937}};
2377 static const double pr_dubois_matrix_YB[3][6] = {
2378 { 1.000, -0.193, 0.282, -0.015, -0.116, -0.016},
2379 {-0.024, 0.855, 0.064, 0.006, 0.058, -0.016},
2380 {-0.036, -0.163, 0.021, 0.089, 0.174, 0.858}};
2385 memcpy(pr_dubois_matrix, pr_dubois_matrix_RC, sizeof pr_dubois_matrix);
2388 memcpy(pr_dubois_matrix, pr_dubois_matrix_GM, sizeof pr_dubois_matrix);
2391 memcpy(pr_dubois_matrix, pr_dubois_matrix_YB, sizeof pr_dubois_matrix);
2395 srs = gdk_pixbuf_get_rowstride(right);
2396 s_pix = gdk_pixbuf_get_pixels(right);
2397 spi = s_pix + (x * COLOR_BYTES);
2399 drs = gdk_pixbuf_get_rowstride(pixbuf);
2400 d_pix = gdk_pixbuf_get_pixels(pixbuf);
2401 dpi = d_pix + x * COLOR_BYTES;
2403 for (i = y; i < y + h; i++)
2405 sp = spi + (i * srs);
2406 dp = dpi + (i * drs);
2407 for (j = 0; j < w; j++)
2410 for (k = 0; k < 3; k++)
2412 const double *m = pr_dubois_matrix[k];
2413 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];
2414 if (res[k] < 0.0) res[k] = 0;
2415 if (res[k] > 255.0) res[k] = 255.0;
2426 void pr_create_anaglyph(guint mode, GdkPixbuf *pixbuf, GdkPixbuf *right, gint x, gint y, gint w, gint h)
2428 if (mode & PR_STEREO_ANAGLYPH_RC)
2429 pr_create_anaglyph_color(pixbuf, right, x, y, w, h, RC);
2430 else if (mode & PR_STEREO_ANAGLYPH_GM)
2431 pr_create_anaglyph_color(pixbuf, right, x, y, w, h, GM);
2432 else if (mode & PR_STEREO_ANAGLYPH_YB)
2433 pr_create_anaglyph_color(pixbuf, right, x, y, w, h, YB);
2434 else if (mode & PR_STEREO_ANAGLYPH_GRAY_RC)
2435 pr_create_anaglyph_gray(pixbuf, right, x, y, w, h, RC);
2436 else if (mode & PR_STEREO_ANAGLYPH_GRAY_GM)
2437 pr_create_anaglyph_gray(pixbuf, right, x, y, w, h, GM);
2438 else if (mode & PR_STEREO_ANAGLYPH_GRAY_YB)
2439 pr_create_anaglyph_gray(pixbuf, right, x, y, w, h, YB);
2440 else if (mode & PR_STEREO_ANAGLYPH_DB_RC)
2441 pr_create_anaglyph_dubois(pixbuf, right, x, y, w, h, RC);
2442 else if (mode & PR_STEREO_ANAGLYPH_DB_GM)
2443 pr_create_anaglyph_dubois(pixbuf, right, x, y, w, h, GM);
2444 else if (mode & PR_STEREO_ANAGLYPH_DB_YB)
2445 pr_create_anaglyph_dubois(pixbuf, right, x, y, w, h, YB);
2449 *-------------------------------------------------------------------
2451 *-------------------------------------------------------------------
2453 static void pr_pixbuf_size_sync(PixbufRenderer *pr)
2455 pr->stereo_pixbuf_offset_left = 0;
2456 pr->stereo_pixbuf_offset_right = 0;
2457 if (!pr->pixbuf) return;
2458 switch (pr->orientation)
2460 case EXIF_ORIENTATION_LEFT_TOP:
2461 case EXIF_ORIENTATION_RIGHT_TOP:
2462 case EXIF_ORIENTATION_RIGHT_BOTTOM:
2463 case EXIF_ORIENTATION_LEFT_BOTTOM:
2464 pr->image_width = gdk_pixbuf_get_height(pr->pixbuf);
2465 pr->image_height = gdk_pixbuf_get_width(pr->pixbuf);
2466 if (pr->stereo_data == STEREO_PIXBUF_SBS)
2468 pr->image_height /= 2;
2469 pr->stereo_pixbuf_offset_right = pr->image_height;
2471 else if (pr->stereo_data == STEREO_PIXBUF_CROSS)
2473 pr->image_height /= 2;
2474 pr->stereo_pixbuf_offset_left = pr->image_height;
2479 pr->image_width = gdk_pixbuf_get_width(pr->pixbuf);
2480 pr->image_height = gdk_pixbuf_get_height(pr->pixbuf);
2481 if (pr->stereo_data == STEREO_PIXBUF_SBS)
2483 pr->image_width /= 2;
2484 pr->stereo_pixbuf_offset_right = pr->image_width;
2486 else if (pr->stereo_data == STEREO_PIXBUF_CROSS)
2488 pr->image_width /= 2;
2489 pr->stereo_pixbuf_offset_left = pr->image_width;
2494 static void pr_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, PrZoomFlags flags)
2496 if (pixbuf) g_object_ref(pixbuf);
2497 if (pr->pixbuf) g_object_unref(pr->pixbuf);
2498 pr->pixbuf = pixbuf;
2502 /* no pixbuf so just clear the window */
2503 pr->image_width = 0;
2504 pr->image_height = 0;
2506 pr->zoom = zoom; /* don't throw away the zoom value, it is set by pixbuf_renderer_move, among others,
2507 and used for pixbuf_renderer_zoom_get */
2509 pr->renderer->update_pixbuf(pr->renderer, flags & PR_ZOOM_LAZY);
2510 if (pr->renderer2) pr->renderer2->update_pixbuf(pr->renderer2, flags & PR_ZOOM_LAZY);
2512 pr_update_signal(pr);
2517 if (pr->stereo_mode & PR_STEREO_TEMP_DISABLE)
2519 gint disable = !pr->pixbuf || ! pr->stereo_data;
2520 pr_stereo_temp_disable(pr, disable);
2523 pr_pixbuf_size_sync(pr);
2524 pr->renderer->update_pixbuf(pr->renderer, flags & PR_ZOOM_LAZY);
2525 if (pr->renderer2) pr->renderer2->update_pixbuf(pr->renderer2, flags & PR_ZOOM_LAZY);
2526 pr_zoom_sync(pr, zoom, static_cast<PrZoomFlags>(flags | PR_ZOOM_FORCE | PR_ZOOM_NEW), 0, 0);
2529 void pixbuf_renderer_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom)
2531 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2533 pr_source_tile_unset(pr);
2535 pr_set_pixbuf(pr, pixbuf, zoom, PR_ZOOM_NONE);
2537 pr_update_signal(pr);
2540 void pixbuf_renderer_set_pixbuf_lazy(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, gint orientation, StereoPixbufData stereo_data)
2542 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2544 pr_source_tile_unset(pr);
2546 pr->orientation = orientation;
2547 pr->stereo_data = stereo_data;
2548 pr_set_pixbuf(pr, pixbuf, zoom, PR_ZOOM_LAZY);
2550 pr_update_signal(pr);
2553 GdkPixbuf *pixbuf_renderer_get_pixbuf(PixbufRenderer *pr)
2555 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
2560 void pixbuf_renderer_set_orientation(PixbufRenderer *pr, gint orientation)
2562 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2564 pr->orientation = orientation;
2566 pr_pixbuf_size_sync(pr);
2567 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
2570 #pragma GCC diagnostic push
2571 #pragma GCC diagnostic ignored "-Wunused-function"
2572 gint pixbuf_renderer_get_orientation_unused(PixbufRenderer *pr)
2575 return pr->orientation;
2577 #pragma GCC diagnostic pop
2579 void pixbuf_renderer_set_stereo_data(PixbufRenderer *pr, StereoPixbufData stereo_data)
2581 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2582 if (pr->stereo_data == stereo_data) return;
2585 pr->stereo_data = stereo_data;
2587 if (pr->stereo_mode & PR_STEREO_TEMP_DISABLE)
2589 gint disable = !pr->pixbuf || ! pr->stereo_data;
2590 pr_stereo_temp_disable(pr, disable);
2592 pr_pixbuf_size_sync(pr);
2593 pr->renderer->update_pixbuf(pr->renderer, FALSE);
2594 if (pr->renderer2) pr->renderer2->update_pixbuf(pr->renderer2, FALSE);
2595 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
2598 void pixbuf_renderer_set_post_process_func(PixbufRenderer *pr, PixbufRendererPostProcessFunc func, gpointer user_data, gboolean slow)
2600 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2602 pr->func_post_process = func;
2603 pr->post_process_user_data = user_data;
2604 pr->post_process_slow = func && slow;
2609 void pixbuf_renderer_move(PixbufRenderer *pr, PixbufRenderer *source)
2612 PixbufRendererScrollResetType scroll_reset;
2614 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2615 g_return_if_fail(IS_PIXBUF_RENDERER(source));
2617 if (pr == source) return;
2619 object = G_OBJECT(pr);
2621 g_object_set(object, "zoom_min", source->zoom_min, NULL);
2622 g_object_set(object, "zoom_max", source->zoom_max, NULL);
2623 g_object_set(object, "loading", source->loading, NULL);
2625 pr->complete = source->complete;
2627 pr->x_scroll = source->x_scroll;
2628 pr->y_scroll = source->y_scroll;
2629 pr->x_mouse = source->x_mouse;
2630 pr->y_mouse = source->y_mouse;
2632 scroll_reset = pr->scroll_reset;
2633 pr->scroll_reset = PR_SCROLL_RESET_NOCHANGE;
2635 pr->func_post_process = source->func_post_process;
2636 pr->post_process_user_data = source->post_process_user_data;
2637 pr->post_process_slow = source->post_process_slow;
2638 pr->orientation = source->orientation;
2639 pr->stereo_data = source->stereo_data;
2641 if (source->source_tiles_enabled)
2643 pr_source_tile_unset(pr);
2645 pr->source_tiles_enabled = source->source_tiles_enabled;
2646 pr->source_tiles_cache_size = source->source_tiles_cache_size;
2647 pr->source_tile_width = source->source_tile_width;
2648 pr->source_tile_height = source->source_tile_height;
2649 pr->image_width = source->image_width;
2650 pr->image_height = source->image_height;
2652 pr->func_tile_request = source->func_tile_request;
2653 pr->func_tile_dispose = source->func_tile_dispose;
2654 pr->func_tile_data = source->func_tile_data;
2656 pr->source_tiles = source->source_tiles;
2657 source->source_tiles = nullptr;
2659 pr_zoom_sync(pr, source->zoom, static_cast<PrZoomFlags>(PR_ZOOM_FORCE | PR_ZOOM_NEW), 0, 0);
2663 pixbuf_renderer_set_pixbuf(pr, source->pixbuf, source->zoom);
2666 pr->scroll_reset = scroll_reset;
2668 pixbuf_renderer_set_pixbuf(source, nullptr, source->zoom);
2671 void pixbuf_renderer_copy(PixbufRenderer *pr, PixbufRenderer *source)
2674 PixbufRendererScrollResetType scroll_reset;
2676 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2677 g_return_if_fail(IS_PIXBUF_RENDERER(source));
2679 if (pr == source) return;
2681 object = G_OBJECT(pr);
2683 g_object_set(object, "zoom_min", source->zoom_min, NULL);
2684 g_object_set(object, "zoom_max", source->zoom_max, NULL);
2685 g_object_set(object, "loading", source->loading, NULL);
2687 pr->complete = source->complete;
2689 pr->x_scroll = source->x_scroll;
2690 pr->y_scroll = source->y_scroll;
2691 pr->x_mouse = source->x_mouse;
2692 pr->y_mouse = source->y_mouse;
2694 scroll_reset = pr->scroll_reset;
2695 pr->scroll_reset = PR_SCROLL_RESET_NOCHANGE;
2697 pr->orientation = source->orientation;
2698 pr->stereo_data = source->stereo_data;
2700 if (source->source_tiles_enabled)
2702 pr->source_tiles_enabled = source->source_tiles_enabled;
2703 pr->source_tiles_cache_size = source->source_tiles_cache_size;
2704 pr->source_tile_width = source->source_tile_width;
2705 pr->source_tile_height = source->source_tile_height;
2706 pr->image_width = source->image_width;
2707 pr->image_height = source->image_height;
2709 pr->func_tile_request = source->func_tile_request;
2710 pr->func_tile_dispose = source->func_tile_dispose;
2711 pr->func_tile_data = source->func_tile_data;
2713 pr->source_tiles = source->source_tiles;
2714 source->source_tiles = nullptr;
2716 pr_zoom_sync(pr, source->zoom, static_cast<PrZoomFlags>(PR_ZOOM_FORCE | PR_ZOOM_NEW), 0, 0);
2720 pixbuf_renderer_set_pixbuf(pr, source->pixbuf, source->zoom);
2723 pr->scroll_reset = scroll_reset;
2726 void pixbuf_renderer_area_changed(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
2728 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2730 if (pr->source_tiles_enabled)
2732 pr_source_tile_changed(pr, x, y, w, h);
2735 pr->renderer->area_changed(pr->renderer, x, y, w, h);
2736 if (pr->renderer2) pr->renderer2->area_changed(pr->renderer2, x, y, w, h);
2739 void pixbuf_renderer_zoom_adjust(PixbufRenderer *pr, gdouble increment)
2741 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2743 pr_zoom_adjust_real(pr, increment, PR_ZOOM_NONE, 0, 0);
2746 void pixbuf_renderer_zoom_adjust_at_point(PixbufRenderer *pr, gdouble increment, gint x, gint y)
2748 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2750 pr_zoom_adjust_real(pr, increment, PR_ZOOM_CENTER, x, y);
2753 void pixbuf_renderer_zoom_set(PixbufRenderer *pr, gdouble zoom)
2755 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2757 pr_zoom_sync(pr, zoom, PR_ZOOM_NONE, 0, 0);
2760 gdouble pixbuf_renderer_zoom_get(PixbufRenderer *pr)
2762 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
2767 gdouble pixbuf_renderer_zoom_get_scale(PixbufRenderer *pr)
2769 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
2774 void pixbuf_renderer_zoom_set_limits(PixbufRenderer *pr, gdouble min, gdouble max)
2776 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
2778 if (min > 1.0 || max < 1.0) return;
2779 if (min < 1.0 && min > -1.0) return;
2780 if (min < -200.0 || max > 200.0) return;
2782 if (pr->zoom_min != min)
2785 g_object_notify(G_OBJECT(pr), "zoom_min");
2787 if (pr->zoom_max != max)
2790 g_object_notify(G_OBJECT(pr), "zoom_max");
2794 static void pr_stereo_set(PixbufRenderer *pr)
2796 if (!pr->renderer) pr->renderer = pr_backend_renderer_new(pr);
2798 pr->renderer->stereo_set(pr->renderer, pr->stereo_mode & ~PR_STEREO_MIRROR_RIGHT & ~PR_STEREO_FLIP_RIGHT);
2800 if (pr->stereo_mode & (PR_STEREO_HORIZ | PR_STEREO_VERT | PR_STEREO_FIXED))
2802 if (!pr->renderer2) pr->renderer2 = pr_backend_renderer_new(pr);
2803 pr->renderer2->stereo_set(pr->renderer2, (pr->stereo_mode & ~PR_STEREO_MIRROR_LEFT & ~PR_STEREO_FLIP_LEFT) | PR_STEREO_RIGHT);
2807 if (pr->renderer2) pr->renderer2->free(pr->renderer2);
2808 pr->renderer2 = nullptr;
2810 if (pr->stereo_mode & PR_STEREO_HALF)
2812 if (pr->stereo_mode & PR_STEREO_HORIZ) pr->aspect_ratio = 2.0;
2813 else if (pr->stereo_mode & PR_STEREO_VERT) pr->aspect_ratio = 0.5;
2814 else pr->aspect_ratio = 1.0;
2818 pr->aspect_ratio = 1.0;
2822 void pixbuf_renderer_stereo_set(PixbufRenderer *pr, gint stereo_mode)
2824 gboolean redraw = !(pr->stereo_mode == stereo_mode) || pr->stereo_temp_disable;
2825 pr->stereo_mode = stereo_mode;
2826 if ((stereo_mode & PR_STEREO_TEMP_DISABLE) && pr->stereo_temp_disable) return;
2828 pr->stereo_temp_disable = FALSE;
2834 pr_size_sync(pr, pr->window_width, pr->window_height); /* recalculate new viewport */
2835 pr_zoom_sync(pr, pr->zoom, static_cast<PrZoomFlags>(PR_ZOOM_FORCE | PR_ZOOM_NEW), 0, 0);
2839 void pixbuf_renderer_stereo_fixed_set(PixbufRenderer *pr, gint width, gint height, gint x1, gint y1, gint x2, gint y2)
2841 pr->stereo_fixed_width = width;
2842 pr->stereo_fixed_height = height;
2843 pr->stereo_fixed_x_left = x1;
2844 pr->stereo_fixed_y_left = y1;
2845 pr->stereo_fixed_x_right = x2;
2846 pr->stereo_fixed_y_right = y2;
2849 gint pixbuf_renderer_stereo_get(PixbufRenderer *pr)
2851 return pr->stereo_mode;
2854 static void pr_stereo_temp_disable(PixbufRenderer *pr, gboolean disable)
2856 if (pr->stereo_temp_disable == disable) return;
2857 pr->stereo_temp_disable = disable;
2860 if (!pr->renderer) pr->renderer = pr_backend_renderer_new(pr);
2861 pr->renderer->stereo_set(pr->renderer, PR_STEREO_NONE);
2862 if (pr->renderer2) pr->renderer2->free(pr->renderer2);
2863 pr->renderer2 = nullptr;
2864 pr->aspect_ratio = 1.0;
2870 pr_size_sync(pr, pr->window_width, pr->window_height); /* recalculate new viewport */
2873 gboolean pixbuf_renderer_get_pixel_colors(PixbufRenderer *pr, gint x_pixel, gint y_pixel,
2874 gint *r_mouse, gint *g_mouse, gint *b_mouse)
2876 GdkPixbuf *pb = pr->pixbuf;
2888 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2889 g_return_val_if_fail(r_mouse != nullptr && g_mouse != nullptr && b_mouse != nullptr, FALSE);
2891 if (!pr->pixbuf && !pr->source_tiles_enabled)
2899 if (!pb) return FALSE;
2901 pr_tile_region_map_orientation(pr->orientation,
2903 pr->image_width, pr->image_height,
2904 1, 1, /*single pixel */
2908 if (map_x < 0 || map_x > gdk_pixbuf_get_width(pr->pixbuf) - 1) return FALSE;
2909 if (map_y < 0 || map_y > gdk_pixbuf_get_height(pr->pixbuf) - 1) return FALSE;
2911 p_alpha = gdk_pixbuf_get_has_alpha(pb);
2912 prs = gdk_pixbuf_get_rowstride(pb);
2913 p_pix = gdk_pixbuf_get_pixels(pb);
2915 xoff = static_cast<size_t>(map_x) * (p_alpha ? 4 : 3);
2916 yoff = static_cast<size_t>(map_y) * prs;
2917 pp = p_pix + yoff + xoff;
2927 gboolean pixbuf_renderer_get_mouse_position(PixbufRenderer *pr, gint *x_pixel_return, gint *y_pixel_return)
2931 gint x_pixel_clamped;
2932 gint y_pixel_clamped;
2934 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2935 g_return_val_if_fail(x_pixel_return != nullptr && y_pixel_return != nullptr, FALSE);
2937 if (!pr->pixbuf && !pr->source_tiles_enabled)
2939 *x_pixel_return = -1;
2940 *y_pixel_return = -1;
2944 x_pixel = floor(static_cast<gdouble>(pr->x_mouse - pr->x_offset + pr->x_scroll) / pr->scale);
2945 y_pixel = floor(static_cast<gdouble>(pr->y_mouse - pr->y_offset + pr->y_scroll) / pr->scale / pr->aspect_ratio);
2946 x_pixel_clamped = CLAMP(x_pixel, 0, pr->image_width - 1);
2947 y_pixel_clamped = CLAMP(y_pixel, 0, pr->image_height - 1);
2949 if (x_pixel != x_pixel_clamped)
2951 /* mouse is not on pr */
2954 if (y_pixel != y_pixel_clamped)
2956 /* mouse is not on pr */
2960 *x_pixel_return = x_pixel;
2961 *y_pixel_return = y_pixel;
2966 gboolean pixbuf_renderer_get_image_size(PixbufRenderer *pr, gint *width, gint *height)
2968 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2969 g_return_val_if_fail(width != nullptr && height != nullptr, FALSE);
2971 if (!pr->pixbuf && !pr->source_tiles_enabled && (!pr->image_width || !pr->image_height))
2978 *width = pr->image_width;
2979 *height = pr->image_height;
2983 gboolean pixbuf_renderer_get_scaled_size(PixbufRenderer *pr, gint *width, gint *height)
2985 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
2986 g_return_val_if_fail(width != nullptr && height != nullptr, FALSE);
2988 if (!pr->pixbuf && !pr->source_tiles_enabled && (!pr->image_width || !pr->image_height))
2996 *height = pr->height;
3000 gboolean pixbuf_renderer_get_visible_rect(PixbufRenderer *pr, GdkRectangle *rect)
3002 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
3003 g_return_val_if_fail(rect != nullptr, FALSE);
3005 if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
3015 rect->x = static_cast<gint>(static_cast<gdouble>(pr->x_scroll) / pr->scale);
3016 rect->y = static_cast<gint>(static_cast<gdouble>(pr->y_scroll) / pr->scale / pr->aspect_ratio);
3017 rect->width = static_cast<gint>(static_cast<gdouble>(pr->vis_width) / pr->scale);
3018 rect->height = static_cast<gint>(static_cast<gdouble>(pr->vis_height) / pr->scale / pr->aspect_ratio);
3022 #pragma GCC diagnostic push
3023 #pragma GCC diagnostic ignored "-Wunused-function"
3024 gboolean pixbuf_renderer_get_virtual_rect_unused(PixbufRenderer *pr, GdkRectangle *rect)
3026 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
3027 g_return_val_if_fail(rect != nullptr, FALSE);
3029 if ((!pr->pixbuf && !pr->source_tiles_enabled))
3038 rect->x = pr->x_scroll;
3039 rect->y = pr->y_scroll;
3040 rect->width = pr->vis_width;
3041 rect->height = pr->vis_height;
3044 #pragma GCC diagnostic pop
3046 void pixbuf_renderer_set_size_early(PixbufRenderer *, guint, guint)
3049 /** @FIXME this function does not consider the image orientation,
3050 so it probably only breaks something */
3054 zoom = pixbuf_renderer_zoom_get(pr);
3055 pr->image_width = width;
3056 pr->image_height = height;
3058 pr_zoom_clamp(pr, zoom, PR_ZOOM_FORCE, NULL);
3062 void pixbuf_renderer_set_ignore_alpha(PixbufRenderer *pr, gint ignore_alpha)
3064 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
3066 pr->ignore_alpha = ignore_alpha;
3067 pr_pixbuf_size_sync(pr);
3068 pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
3071 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */