Fix #610: Support heic image format
[geeqie.git] / src / image.c
1 /*
2  * Copyright (C) 2006 John Ellis
3  * Copyright (C) 2008 - 2016 The Geeqie Team
4  *
5  * Author: John Ellis
6  *
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.
11  *
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.
16  *
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.
20  */
21
22 #include "main.h"
23 #include "image.h"
24
25
26 #include "collect.h"
27 #include "collect-table.h"
28 #include "color-man.h"
29 #include "exif.h"
30 #include "metadata.h"
31 #include "histogram.h"
32 #include "image-load.h"
33 #include "image-overlay.h"
34 #include "layout.h"
35 #include "layout_image.h"
36 #include "pixbuf-renderer.h"
37 #include "pixbuf_util.h"
38 #include "ui_fileops.h"
39
40 #include "filedata.h"
41 #include "filecache.h"
42
43 #include <math.h>
44
45 static GList *image_list = NULL;
46
47 static void image_update_title(ImageWindow *imd);
48 static void image_read_ahead_start(ImageWindow *imd);
49 static void image_cache_set(ImageWindow *imd, FileData *fd);
50
51 // For draw rectangle function
52 static gint pixbuf_start_x;
53 static gint pixbuf_start_y;
54 static gint image_start_x;
55 static gint image_start_y;
56 static gint rect_x1, rect_x2, rect_y1, rect_y2;
57 static gint rect_id = 0;
58
59 /*
60  *-------------------------------------------------------------------
61  * 'signals'
62  *-------------------------------------------------------------------
63  */
64
65 static void image_click_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
66 {
67         ImageWindow *imd = data;
68         if (!options->image_lm_click_nav && event->button == MOUSE_BUTTON_MIDDLE)
69                 {
70                 imd->mouse_wheel_mode = !imd->mouse_wheel_mode;
71                 }
72
73         if (imd->func_button)
74                 {
75                 imd->func_button(imd, event, imd->data_button);
76                 }
77 }
78
79 static void switch_coords_orientation(ImageWindow *imd, gint x, gint y, gint width, gint height)
80 {
81         switch (imd->orientation)
82                 {
83                 case EXIF_ORIENTATION_TOP_LEFT:
84                         /* normal -- nothing to do */
85                         rect_x1 = image_start_x;
86                         rect_y1 = image_start_y;
87                         rect_x2 = x;
88                         rect_y2 = y;
89                         break;
90                 case EXIF_ORIENTATION_TOP_RIGHT:
91                         /* mirrored */
92                         rect_x1 = width - x;
93                         rect_y1 = image_start_y;
94                         rect_x2 = width - image_start_x;
95                         rect_y2 = y;
96                         break;
97                 case EXIF_ORIENTATION_BOTTOM_RIGHT:
98                         /* upside down */
99                         rect_x1 = width - x;
100                         rect_y1 = height - y;
101                         rect_x2 = width - image_start_x;
102                         rect_y2 = height - image_start_y;
103                         break;
104                 case EXIF_ORIENTATION_BOTTOM_LEFT:
105                         /* flipped */
106                         rect_x1 = image_start_x;
107                         rect_y1 = height - y;
108                         rect_x2 = x;
109                         rect_y2 = height - image_start_y;
110                         break;
111                 case EXIF_ORIENTATION_LEFT_TOP:
112                         /* left mirrored */
113                         rect_x1 = image_start_y;
114                         rect_y1 = image_start_x;
115                         rect_x2 = y;
116                         rect_y2 = x;
117                         break;
118                 case EXIF_ORIENTATION_RIGHT_TOP:
119                         /* rotated -90 (270) */
120                         rect_x1 = image_start_y;
121                         rect_y1 = width - x;
122                         rect_x2 = y;
123                         rect_y2 = width - image_start_x;
124                         break;
125                 case EXIF_ORIENTATION_RIGHT_BOTTOM:
126                         /* right mirrored */
127                         rect_x1 = height - y;
128                         rect_y1 = width - x;
129                         rect_x2 = height - image_start_y;
130                         rect_y2 = width - image_start_x;
131                         break;
132                 case EXIF_ORIENTATION_LEFT_BOTTOM:
133                         /* rotated 90 */
134                         rect_x1 = height - y;
135                         rect_y1 = image_start_x;
136                         rect_x2 = height - image_start_y;
137                         rect_y2 = x;
138                         break;
139                 default:
140                         /* The other values are out of range */
141                         break;
142                 }
143 }
144
145 static void image_press_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
146 {
147         ImageWindow *imd = data;
148         LayoutWindow *lw;
149         gint x_pixel, y_pixel;
150
151         if(options->draw_rectangle)
152                 {
153                 pixbuf_renderer_get_mouse_position(pr, &x_pixel, &y_pixel);
154
155                 pixbuf_start_x = event->x;
156                 pixbuf_start_y = event->y;
157
158                 if (x_pixel == -1)
159                         {
160                         image_start_x = 0;
161                         }
162                 else
163                         {
164                         image_start_x = x_pixel;
165                         }
166
167                 if (y_pixel == -1)
168                         {
169                         image_start_y = 0;
170                         }
171                 else
172                         {
173                         image_start_y = y_pixel;
174                         }
175                 }
176
177         if (rect_id)
178                 {
179                 pixbuf_renderer_overlay_remove((PixbufRenderer *)imd->pr, rect_id);
180                 }
181
182         lw = layout_find_by_image(imd);
183         if (lw && event->button == MOUSE_BUTTON_LEFT && event->type == GDK_2BUTTON_PRESS
184                                                                                                 && !options->image_lm_click_nav)
185                 {
186                 if (lw->full_screen)
187                         layout_image_full_screen_stop(lw);
188                 }
189 }
190
191 static void image_drag_cb(PixbufRenderer *pr, GdkEventMotion *event, gpointer data)
192 {
193         ImageWindow *imd = data;
194         gint width, height;
195         gint rect_width;
196         gint rect_height;
197         GdkPixbuf *rect_pixbuf;
198         gint x_pixel, y_pixel;
199         gint image_x_pixel, image_y_pixel;
200
201         if (options->draw_rectangle)
202                 {
203                 pixbuf_renderer_get_image_size(pr, &width, &height);
204                 pixbuf_renderer_get_mouse_position(pr, &x_pixel, &y_pixel);
205
206                 if (x_pixel == -1)
207                         {
208                         image_x_pixel = width;
209                         }
210                 else
211                         {
212                         image_x_pixel = x_pixel;
213                         }
214
215                 if (y_pixel == -1)
216                         {
217                         image_y_pixel = height;
218                         }
219                 else
220                         {
221                         image_y_pixel = y_pixel;
222                         }
223
224                 switch_coords_orientation(imd, image_x_pixel, image_y_pixel, width, height);
225                 if (rect_id)
226                         {
227                         pixbuf_renderer_overlay_remove((PixbufRenderer *)imd->pr, rect_id);
228                         }
229
230                 rect_width = pr->drag_last_x - pixbuf_start_x;
231                 if (rect_width <= 0)
232                         {
233                         rect_width = 1;
234                         }
235                 rect_height = pr->drag_last_y - pixbuf_start_y;
236                 if (rect_height <= 0)
237                         {
238                         rect_height = 1;
239                         }
240
241                 rect_pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, rect_width, rect_height);
242                 pixbuf_set_rect_fill(rect_pixbuf, 0, 0, rect_width, rect_height, 255, 255, 255, 0);
243                 pixbuf_set_rect(rect_pixbuf, 1, 1, rect_width-2, rect_height - 2, 0, 0, 0, 255, 1, 1, 1, 1);
244                 pixbuf_set_rect(rect_pixbuf, 2, 2, rect_width-4, rect_height - 4, 255, 255, 255, 255, 1, 1, 1, 1);
245
246                 rect_id = pixbuf_renderer_overlay_add((PixbufRenderer *)imd->pr, rect_pixbuf, pixbuf_start_x, pixbuf_start_y, OVL_NORMAL);
247                 }
248
249         pixbuf_renderer_get_scaled_size(pr, &width, &height);
250
251         if (imd->func_drag)
252                 {
253                 imd->func_drag(imd, event,
254                                (gfloat)(pr->drag_last_x - event->x) / width,
255                                (gfloat)(pr->drag_last_y - event->y) / height,
256                                imd->data_button);
257                 }
258 }
259
260 static void image_scroll_notify_cb(PixbufRenderer *pr, gpointer data)
261 {
262         ImageWindow *imd = data;
263
264         if (imd->func_scroll_notify && pr->scale)
265                 {
266                 imd->func_scroll_notify(imd,
267                                         (gint)((gdouble)pr->x_scroll / pr->scale),
268                                         (gint)((gdouble)pr->y_scroll / pr->scale),
269                                         (gint)((gdouble)pr->image_width - pr->vis_width / pr->scale),
270                                         (gint)((gdouble)pr->image_height - pr->vis_height / pr->scale),
271                                         imd->data_scroll_notify);
272                 }
273 }
274
275 static void image_update_util(ImageWindow *imd)
276 {
277         if (imd->func_update) imd->func_update(imd, imd->data_update);
278 }
279
280
281 static void image_complete_util(ImageWindow *imd, gboolean preload)
282 {
283         if (imd->il && image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il)) return;
284
285         DEBUG_1("%s image load completed \"%s\" (%s)", get_exec_time(),
286                           (preload) ? (imd->read_ahead_fd ? imd->read_ahead_fd->path : "null") :
287                                       (imd->image_fd ? imd->image_fd->path : "null"),
288                           (preload) ? "preload" : "current");
289
290         if (!preload) imd->completed = TRUE;
291         if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
292 }
293
294 static void image_render_complete_cb(PixbufRenderer *pr, gpointer data)
295 {
296         ImageWindow *imd = data;
297
298         image_complete_util(imd, FALSE);
299 }
300
301 static void image_state_set(ImageWindow *imd, ImageState state)
302 {
303         if (state == IMAGE_STATE_NONE)
304                 {
305                 imd->state = state;
306                 }
307         else
308                 {
309                 imd->state |= state;
310                 }
311         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
312 }
313
314 static void image_state_unset(ImageWindow *imd, ImageState state)
315 {
316         imd->state &= ~state;
317         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
318 }
319
320 static void image_zoom_cb(PixbufRenderer *pr, gdouble zoom, gpointer data)
321 {
322         ImageWindow *imd = data;
323
324         if (imd->title_show_zoom) image_update_title(imd);
325         image_state_set(imd, IMAGE_STATE_IMAGE);
326         image_update_util(imd);
327 }
328
329 /*
330  *-------------------------------------------------------------------
331  * misc
332  *-------------------------------------------------------------------
333  */
334
335 static void image_update_title(ImageWindow *imd)
336 {
337         gchar *title = NULL;
338         gchar *zoom = NULL;
339         gchar *collection = NULL;
340         LayoutWindow *lw;
341         gchar *lw_ident = NULL;
342
343         if (!imd->top_window) return;
344
345         if (imd->collection && collection_to_number(imd->collection) >= 0)
346                 {
347                 const gchar *name = imd->collection->name;
348                 if (!name) name = _("Untitled");
349                 collection = g_strdup_printf(_(" (Collection %s)"), name);
350                 }
351
352         if (imd->title_show_zoom)
353                 {
354                 gchar *buf = image_zoom_get_as_text(imd);
355                 zoom = g_strconcat(" [", buf, "]", NULL);
356                 g_free(buf);
357                 }
358
359         lw = layout_find_by_image(imd);
360         if (lw)
361                 {
362                 lw_ident = g_strconcat(" (", lw->options.id, ")", NULL);
363                 }
364
365         title = g_strdup_printf("%s%s%s%s%s%s%s",
366                 imd->title ? imd->title : "",
367                 imd->image_fd ? imd->image_fd->name : "",
368                 zoom ? zoom : "",
369                 collection ? collection : "",
370                 imd->image_fd ? " - " : "",
371                 imd->title_right ? imd->title_right : "",
372                 options->show_window_ids ? (lw_ident ? lw_ident : "") : ""
373                 );
374         if (lw_ident)
375                 {
376                 g_free(lw_ident);
377                 }
378
379         gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
380
381         g_free(title);
382         g_free(zoom);
383         g_free(collection);
384 }
385
386 /*
387  *-------------------------------------------------------------------
388  * rotation, flip, etc.
389  *-------------------------------------------------------------------
390  */
391 static gboolean image_get_x11_screen_profile(ImageWindow *imd, guchar **screen_profile, gint *screen_profile_len)
392 {
393         GdkScreen *screen = gtk_widget_get_screen(imd->widget);;
394         GdkAtom    type   = GDK_NONE;
395         gint       format = 0;
396
397         return (gdk_property_get(gdk_screen_get_root_window(screen),
398                                  gdk_atom_intern ("_ICC_PROFILE", FALSE),
399                                  GDK_NONE,
400                                  0, 64 * 1024 * 1024, FALSE,
401                                  &type, &format, screen_profile_len, screen_profile) && *screen_profile_len > 0);
402 }
403
404 static gboolean image_post_process_color(ImageWindow *imd, gint start_row, gboolean run_in_bg)
405 {
406         ColorMan *cm;
407         ColorManProfileType input_type;
408         ColorManProfileType screen_type;
409         const gchar *input_file = NULL;
410         const gchar *screen_file = NULL;
411         guchar *profile = NULL;
412         guint profile_len;
413         guchar *screen_profile = NULL;
414         gint screen_profile_len;
415         ExifData *exif;
416
417         if (imd->cm) return FALSE;
418
419         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
420             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
421                 {
422                 const gchar *file = options->color_profile.input_file[imd->color_profile_input - COLOR_PROFILE_FILE];
423
424                 if (!is_readable_file(file)) return FALSE;
425
426                 input_type = COLOR_PROFILE_FILE;
427                 input_file = file;
428                 }
429         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
430                  imd->color_profile_input <  COLOR_PROFILE_FILE)
431                 {
432                 input_type = imd->color_profile_input;
433                 input_file = NULL;
434                 }
435         else
436                 {
437                 return FALSE;
438                 }
439
440         if (options->color_profile.use_x11_screen_profile &&
441             image_get_x11_screen_profile(imd, &screen_profile, &screen_profile_len))
442                 {
443                 screen_type = COLOR_PROFILE_MEM;
444                 DEBUG_1("Using X11 screen profile, length: %d", screen_profile_len);
445                 }
446         else if (options->color_profile.screen_file &&
447             is_readable_file(options->color_profile.screen_file))
448                 {
449                 screen_type = COLOR_PROFILE_FILE;
450                 screen_file = options->color_profile.screen_file;
451                 }
452         else
453                 {
454                 screen_type = COLOR_PROFILE_SRGB;
455                 screen_file = NULL;
456                 }
457
458
459         imd->color_profile_from_image = COLOR_PROFILE_NONE;
460
461         exif = exif_read_fd(imd->image_fd);
462
463         if (exif)
464                 {
465                 profile = exif_get_color_profile(exif, &profile_len);
466                 if (profile)
467                         {
468                         if (!imd->color_profile_use_image)
469                                 {
470                                 g_free(profile);
471                                 profile = NULL;
472                                 }
473                         DEBUG_1("Found embedded color profile");
474                         imd->color_profile_from_image = COLOR_PROFILE_MEM;
475                         }
476                 else
477                         {
478                         gchar *interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
479
480                         if (interop_index)
481                                 {
482                                 /* Exif 2.21 specification */
483                                 if (!strcmp(interop_index, "R98"))
484                                         {
485                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
486                                         DEBUG_1("Found EXIF 2.21 ColorSpace of sRGB");
487                                         }
488                                 else if (!strcmp(interop_index, "R03"))
489                                         {
490                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
491                                         DEBUG_1("Found EXIF 2.21 ColorSpace of AdobeRGB");
492                                         }
493                                 g_free(interop_index);
494                                 }
495                         else
496                                 {
497                                 gint cs;
498
499                                 /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
500                                 if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
501                                 if (cs == 1)
502                                         {
503                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
504                                         DEBUG_1("Found EXIF 2.2 ColorSpace of sRGB");
505                                         }
506                                 else if (cs == 2)
507                                         {
508                                         /* non-standard way of specifying AdobeRGB (used by some software) */
509                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
510                                         DEBUG_1("Found EXIF 2.2 ColorSpace of AdobeRGB");
511                                         }
512                                 }
513
514                         if (imd->color_profile_use_image && imd->color_profile_from_image != COLOR_PROFILE_NONE)
515                                {
516                                input_type = imd->color_profile_from_image;
517                                input_file = NULL;
518                                }
519                         }
520
521                 exif_free_fd(imd->image_fd, exif);
522                 }
523
524
525         if (profile)
526                 {
527                 cm = color_man_new_embedded(run_in_bg ? imd : NULL, NULL,
528                                             profile, profile_len,
529                                             screen_type, screen_file, screen_profile, screen_profile_len);
530                 g_free(profile);
531                 }
532         else
533                 {
534                 cm = color_man_new(run_in_bg ? imd : NULL, NULL,
535                                    input_type, input_file,
536                                    screen_type, screen_file, screen_profile, screen_profile_len);
537                 }
538
539         if (cm)
540                 {
541                 if (start_row > 0)
542                         {
543                         cm->row = start_row;
544                         cm->incremental_sync = TRUE;
545                         }
546
547                 imd->cm = (gpointer)cm;
548                 }
549
550         image_update_util(imd);
551
552         if (screen_profile)
553                 {
554                 g_free(screen_profile);
555                 screen_profile = NULL;
556                 }
557
558         return !!cm;
559 }
560
561
562 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
563 {
564         ImageWindow *imd = (ImageWindow *)data;
565         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
566         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
567
568 }
569
570 void image_alter_orientation(ImageWindow *imd, FileData *fd_n, AlterType type)
571 {
572         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
573         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
574         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
575         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
576         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
577
578         gint orientation;
579
580         if (!imd || !imd->pr || !imd->image_fd || !fd_n) return;
581
582         orientation = EXIF_ORIENTATION_TOP_LEFT;
583         {
584         if (fd_n->user_orientation)
585                 {
586                 orientation = fd_n->user_orientation;
587                 }
588         else
589                 if (options->metadata.write_orientation)
590                         {
591                         orientation = metadata_read_int(fd_n, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
592                         }
593         }
594
595         switch (type)
596                 {
597                 case ALTER_ROTATE_90:
598                         orientation = rotate_90[orientation];
599                         break;
600                 case ALTER_ROTATE_90_CC:
601                         orientation = rotate_90_cc[orientation];
602                         break;
603                 case ALTER_ROTATE_180:
604                         orientation = rotate_180[orientation];
605                         break;
606                 case ALTER_MIRROR:
607                         orientation = mirror[orientation];
608                         break;
609                 case ALTER_FLIP:
610                         orientation = flip[orientation];
611                         break;
612                 case ALTER_NONE:
613                         orientation = fd_n->exif_orientation ? fd_n->exif_orientation : 1;
614                         break;
615                 default:
616                         return;
617                         break;
618                 }
619
620         if (orientation != (fd_n->exif_orientation ? fd_n->exif_orientation : 1))
621                 {
622                 if (!options->metadata.write_orientation)
623                         {
624                         /* user_orientation does not work together with options->metadata.write_orientation,
625                            use either one or the other.
626                            we must however handle switching metadata.write_orientation on and off, therefore
627                            we just disable referencing new fd's, not unreferencing the old ones
628                         */
629                         if (fd_n->user_orientation == 0) file_data_ref(fd_n);
630                         fd_n->user_orientation = orientation;
631                         }
632                 }
633         else
634                 {
635                 if (fd_n->user_orientation != 0) file_data_unref(fd_n);
636                 fd_n->user_orientation = 0;
637                 }
638
639         if (options->metadata.write_orientation)
640                 {
641                 if (type == ALTER_NONE)
642                         {
643                         metadata_write_revert(fd_n, ORIENTATION_KEY);
644                         }
645                 else
646                         {
647                         metadata_write_int(fd_n, ORIENTATION_KEY, orientation);
648                         }
649                 }
650
651         if (imd->image_fd == fd_n && !(options->metadata.write_orientation && !options->image.exif_rotate_enable))
652                 {
653                 imd->orientation = orientation;
654                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, orientation);
655                 }
656 }
657
658 void image_set_desaturate(ImageWindow *imd, gboolean desaturate)
659 {
660         imd->desaturate = desaturate;
661         if (imd->cm || imd->desaturate)
662                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
663         else
664                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
665         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
666 }
667
668 gboolean image_get_desaturate(ImageWindow *imd)
669 {
670         return imd->desaturate;
671 }
672
673 /*
674  *-------------------------------------------------------------------
675  * read ahead (prebuffer)
676  *-------------------------------------------------------------------
677  */
678
679 static void image_read_ahead_cancel(ImageWindow *imd)
680 {
681         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
682
683         image_loader_free(imd->read_ahead_il);
684         imd->read_ahead_il = NULL;
685
686         file_data_unref(imd->read_ahead_fd);
687         imd->read_ahead_fd = NULL;
688 }
689
690 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
691 {
692         ImageWindow *imd = data;
693
694         if (!imd->read_ahead_fd || !imd->read_ahead_il) return;
695
696         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
697
698         if (!imd->read_ahead_fd->pixbuf)
699                 {
700                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
701                 if (imd->read_ahead_fd->pixbuf)
702                         {
703                         g_object_ref(imd->read_ahead_fd->pixbuf);
704                         image_cache_set(imd, imd->read_ahead_fd);
705                         }
706                 }
707         image_loader_free(imd->read_ahead_il);
708         imd->read_ahead_il = NULL;
709
710         image_complete_util(imd, TRUE);
711 }
712
713 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
714 {
715         /* we even treat errors as success, maybe at least some of the file was ok */
716         image_read_ahead_done_cb(il, data);
717 }
718
719 static void image_read_ahead_start(ImageWindow *imd)
720 {
721         /* already started ? */
722         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
723
724         /* still loading ?, do later */
725         if (imd->il /*|| imd->cm*/) return;
726
727         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
728
729         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
730
731         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
732
733         g_signal_connect(G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
734         g_signal_connect(G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
735
736         if (!image_loader_start(imd->read_ahead_il))
737                 {
738                 image_read_ahead_cancel(imd);
739                 image_complete_util(imd, TRUE);
740                 }
741 }
742
743 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
744 {
745         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
746
747         image_read_ahead_cancel(imd);
748
749         imd->read_ahead_fd = file_data_ref(fd);
750
751         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
752
753         image_read_ahead_start(imd);
754 }
755
756 /*
757  *-------------------------------------------------------------------
758  * post buffering
759  *-------------------------------------------------------------------
760  */
761
762 static void image_cache_release_cb(FileData *fd)
763 {
764         g_object_unref(fd->pixbuf);
765         fd->pixbuf = NULL;
766 }
767
768 static FileCacheData *image_get_cache(void)
769 {
770         static FileCacheData *cache = NULL;
771         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
772         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
773         return cache;
774 }
775
776 static void image_cache_set(ImageWindow *imd, FileData *fd)
777 {
778         g_assert(fd->pixbuf);
779
780         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
781         file_data_send_notification(fd, NOTIFY_PIXBUF); /* to update histogram */
782 }
783
784 static gint image_cache_get(ImageWindow *imd)
785 {
786         gint success;
787
788         success = file_cache_get(image_get_cache(), imd->image_fd);
789         if (success)
790                 {
791                 g_assert(imd->image_fd->pixbuf);
792                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
793                 }
794
795 //      file_cache_dump(image_get_cache());
796         return success;
797 }
798
799 /*
800  *-------------------------------------------------------------------
801  * loading
802  *-------------------------------------------------------------------
803  */
804
805 static void image_load_pixbuf_ready(ImageWindow *imd)
806 {
807         if (image_get_pixbuf(imd) || !imd->il) return;
808
809         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
810 }
811
812 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
813 {
814         ImageWindow *imd = data;
815         PixbufRenderer *pr;
816
817         pr = (PixbufRenderer *)imd->pr;
818
819         if (imd->delay_flip &&
820             pr->pixbuf != image_loader_get_pixbuf(il))
821                 {
822                 return;
823                 }
824
825         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
826
827         pixbuf_renderer_area_changed(pr, x, y, w, h);
828 }
829
830 static void image_load_done_cb(ImageLoader *il, gpointer data)
831 {
832         ImageWindow *imd = data;
833
834         DEBUG_1("%s image done", get_exec_time());
835
836         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
837                 {
838                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
839                 image_cache_set(imd, imd->image_fd);
840                 }
841         /* call the callback triggered by image_state after fd->pixbuf is set */
842         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
843         image_state_unset(imd, IMAGE_STATE_LOADING);
844
845         if (!image_loader_get_pixbuf(imd->il))
846                 {
847                 GdkPixbuf *pixbuf;
848
849                 switch (imd->image_fd->format_class)
850                         {
851                         case FORMAT_CLASS_UNKNOWN:
852                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_UNKNOWN);
853                                 break;
854                         case FORMAT_CLASS_META:
855                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_METADATA);
856                                 break;
857                         case FORMAT_CLASS_VIDEO:
858                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_VIDEO);
859                         case FORMAT_CLASS_COLLECTION:
860                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_COLLECTION);
861                                 break;
862                         case FORMAT_CLASS_PDF:
863                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_ICON_PDF);
864                                 break;
865                         case FORMAT_CLASS_HEIF:
866                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_ICON_HEIF);
867                                 break;
868                         default:
869                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
870                         }
871
872                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
873                 g_object_unref(pixbuf);
874
875                 imd->unknown = TRUE;
876                 }
877         else if (imd->delay_flip &&
878             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
879                 {
880                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
881                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
882                 }
883
884         image_loader_free(imd->il);
885         imd->il = NULL;
886
887 //      image_post_process(imd, TRUE);
888
889         image_read_ahead_start(imd);
890 }
891
892 static void image_load_size_cb(ImageLoader *il, guint width, guint height, gpointer data)
893 {
894         ImageWindow *imd = data;
895
896         DEBUG_1("image_load_size_cb: %dx%d", width, height);
897         pixbuf_renderer_set_size_early((PixbufRenderer *)imd->pr, width, height);
898 }
899
900 static void image_load_error_cb(ImageLoader *il, gpointer data)
901 {
902         DEBUG_1("%s image error", get_exec_time());
903
904         /* even on error handle it like it was done,
905          * since we have a pixbuf with _something_ */
906
907         image_load_done_cb(il, data);
908 }
909
910 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
911 {
912         g_assert(imd->il);
913         if (override_old_signals)
914                 {
915                 /* override the old signals */
916                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
917                 }
918
919         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
920         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
921         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
922         g_signal_connect(G_OBJECT(imd->il), "size_prepared", (GCallback)image_load_size_cb, imd);
923 }
924
925 /* this read ahead is located here merely for the callbacks, above */
926
927 static gboolean image_read_ahead_check(ImageWindow *imd)
928 {
929         if (!imd->read_ahead_fd) return FALSE;
930         if (imd->il) return FALSE;
931
932         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
933                 {
934                 image_read_ahead_cancel(imd);
935                 return FALSE;
936                 }
937
938         if (imd->read_ahead_il)
939                 {
940                 imd->il = imd->read_ahead_il;
941                 imd->read_ahead_il = NULL;
942
943                 image_load_set_signals(imd, TRUE);
944
945                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
946                 image_state_set(imd, IMAGE_STATE_LOADING);
947
948                 if (!imd->delay_flip)
949                         {
950                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
951                         }
952
953                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
954
955                 file_data_unref(imd->read_ahead_fd);
956                 imd->read_ahead_fd = NULL;
957                 return TRUE;
958                 }
959         else if (imd->read_ahead_fd->pixbuf)
960                 {
961                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
962
963                 file_data_unref(imd->read_ahead_fd);
964                 imd->read_ahead_fd = NULL;
965
966 //              image_post_process(imd, FALSE);
967                 return TRUE;
968                 }
969
970         image_read_ahead_cancel(imd);
971         return FALSE;
972 }
973
974 static gboolean image_load_begin(ImageWindow *imd, FileData *fd)
975 {
976         DEBUG_1("%s image begin", get_exec_time());
977
978         if (imd->il) return FALSE;
979
980         imd->completed = FALSE;
981         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
982
983         if (image_cache_get(imd))
984                 {
985                 DEBUG_1("from cache: %s", imd->image_fd->path);
986                 return TRUE;
987                 }
988
989         if (image_read_ahead_check(imd))
990                 {
991                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
992                 return TRUE;
993                 }
994
995         if (!imd->delay_flip && image_get_pixbuf(imd))
996                 {
997                 PixbufRenderer *pr;
998
999                 pr = PIXBUF_RENDERER(imd->pr);
1000                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1001                 pr->pixbuf = NULL;
1002                 }
1003
1004         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
1005
1006         imd->il = image_loader_new(fd);
1007
1008         image_load_set_signals(imd, FALSE);
1009
1010         if (!image_loader_start(imd->il))
1011                 {
1012                 DEBUG_1("image start error");
1013
1014                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
1015
1016                 image_loader_free(imd->il);
1017                 imd->il = NULL;
1018
1019                 image_complete_util(imd, FALSE);
1020
1021                 return FALSE;
1022                 }
1023
1024         image_state_set(imd, IMAGE_STATE_LOADING);
1025
1026 /*
1027         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
1028                 {
1029                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
1030                 }
1031 */
1032         return TRUE;
1033 }
1034
1035 static void image_reset(ImageWindow *imd)
1036 {
1037         /* stops anything currently being done */
1038
1039         DEBUG_1("%s image reset", get_exec_time());
1040
1041         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
1042
1043         image_loader_free(imd->il);
1044         imd->il = NULL;
1045
1046         color_man_free((ColorMan *)imd->cm);
1047         imd->cm = NULL;
1048
1049         imd->delay_alter_type = ALTER_NONE;
1050
1051         image_state_set(imd, IMAGE_STATE_NONE);
1052 }
1053
1054 /*
1055  *-------------------------------------------------------------------
1056  * image changer
1057  *-------------------------------------------------------------------
1058  */
1059
1060 static void image_change_complete(ImageWindow *imd, gdouble zoom)
1061 {
1062         image_reset(imd);
1063         imd->unknown = TRUE;
1064
1065         if (!imd->image_fd)
1066                 {
1067                 image_change_pixbuf(imd, NULL, zoom, FALSE);
1068                 }
1069         else
1070                 {
1071
1072                 if (is_readable_file(imd->image_fd->path))
1073                         {
1074                         PixbufRenderer *pr;
1075
1076                         pr = PIXBUF_RENDERER(imd->pr);
1077                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
1078
1079                         if (image_load_begin(imd, imd->image_fd))
1080                                 {
1081                                 imd->unknown = FALSE;
1082                                 }
1083                         }
1084
1085                 if (imd->unknown == TRUE)
1086                         {
1087                         GdkPixbuf *pixbuf;
1088
1089                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
1090                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
1091                         g_object_unref(pixbuf);
1092                         }
1093                 }
1094
1095         image_update_util(imd);
1096 }
1097
1098 static void image_change_real(ImageWindow *imd, FileData *fd,
1099                               CollectionData *cd, CollectInfo *info, gdouble zoom)
1100 {
1101
1102         imd->collection = cd;
1103         imd->collection_info = info;
1104
1105         if (imd->auto_refresh && imd->image_fd)
1106                 file_data_unregister_real_time_monitor(imd->image_fd);
1107
1108         file_data_unref(imd->image_fd);
1109         imd->image_fd = file_data_ref(fd);
1110
1111
1112         image_change_complete(imd, zoom);
1113
1114         image_update_title(imd);
1115         image_state_set(imd, IMAGE_STATE_IMAGE);
1116
1117         if (imd->auto_refresh && imd->image_fd)
1118                 file_data_register_real_time_monitor(imd->image_fd);
1119 }
1120
1121 /*
1122  *-------------------------------------------------------------------
1123  * focus stuff
1124  *-------------------------------------------------------------------
1125  */
1126
1127 static gboolean image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
1128 {
1129         ImageWindow *imd = data;
1130
1131         if (imd->func_focus_in)
1132                 {
1133                 imd->func_focus_in(imd, imd->data_focus_in);
1134                 }
1135
1136         return TRUE;
1137 }
1138
1139 static gboolean image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
1140 {
1141         ImageWindow *imd = data;
1142
1143         if (imd->func_scroll &&
1144             event && event->type == GDK_SCROLL)
1145                 {
1146                 imd->func_scroll(imd, event, imd->data_scroll);
1147                 return TRUE;
1148                 }
1149
1150         return FALSE;
1151 }
1152
1153 /*
1154  *-------------------------------------------------------------------
1155  * public interface
1156  *-------------------------------------------------------------------
1157  */
1158
1159 void image_attach_window(ImageWindow *imd, GtkWidget *window,
1160                          const gchar *title, const gchar *title_right, gboolean show_zoom)
1161 {
1162         LayoutWindow *lw;
1163
1164         imd->top_window = window;
1165         g_free(imd->title);
1166         imd->title = g_strdup(title);
1167         g_free(imd->title_right);
1168         imd->title_right = g_strdup(title_right);
1169         imd->title_show_zoom = show_zoom;
1170
1171         lw = layout_find_by_image(imd);
1172
1173         if (!(options->image.fit_window_to_image && lw && lw->options.tools_float)) window = NULL;
1174
1175         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
1176
1177         image_update_title(imd);
1178 }
1179
1180 void image_set_update_func(ImageWindow *imd,
1181                            void (*func)(ImageWindow *imd, gpointer data),
1182                            gpointer data)
1183 {
1184         imd->func_update = func;
1185         imd->data_update = data;
1186 }
1187
1188 void image_set_complete_func(ImageWindow *imd,
1189                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
1190                              gpointer data)
1191 {
1192         imd->func_complete = func;
1193         imd->data_complete = data;
1194 }
1195
1196 void image_set_state_func(ImageWindow *imd,
1197                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
1198                         gpointer data)
1199 {
1200         imd->func_state = func;
1201         imd->data_state = data;
1202 }
1203
1204
1205 void image_set_button_func(ImageWindow *imd,
1206                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
1207                            gpointer data)
1208 {
1209         imd->func_button = func;
1210         imd->data_button = data;
1211 }
1212
1213 void image_set_drag_func(ImageWindow *imd,
1214                            void (*func)(ImageWindow *, GdkEventMotion *event, gdouble dx, gdouble dy, gpointer),
1215                            gpointer data)
1216 {
1217         imd->func_drag = func;
1218         imd->data_drag = data;
1219 }
1220
1221 void image_set_scroll_func(ImageWindow *imd,
1222                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
1223                            gpointer data)
1224 {
1225         imd->func_scroll = func;
1226         imd->data_scroll = data;
1227 }
1228
1229 void image_set_scroll_notify_func(ImageWindow *imd,
1230                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
1231                                   gpointer data)
1232 {
1233         imd->func_scroll_notify = func;
1234         imd->data_scroll_notify = data;
1235 }
1236
1237 void image_set_focus_in_func(ImageWindow *imd,
1238                            void (*func)(ImageWindow *, gpointer),
1239                            gpointer data)
1240 {
1241         imd->func_focus_in = func;
1242         imd->data_focus_in = data;
1243 }
1244
1245 /* path, name */
1246
1247 const gchar *image_get_path(ImageWindow *imd)
1248 {
1249         if (imd->image_fd == NULL) return NULL;
1250         return imd->image_fd->path;
1251 }
1252
1253 const gchar *image_get_name(ImageWindow *imd)
1254 {
1255         if (imd->image_fd == NULL) return NULL;
1256         return imd->image_fd->name;
1257 }
1258
1259 FileData *image_get_fd(ImageWindow *imd)
1260 {
1261         return imd->image_fd;
1262 }
1263
1264 /* merely changes path string, does not change the image! */
1265 void image_set_fd(ImageWindow *imd, FileData *fd)
1266 {
1267         if (imd->auto_refresh && imd->image_fd)
1268                 file_data_unregister_real_time_monitor(imd->image_fd);
1269
1270         file_data_unref(imd->image_fd);
1271         imd->image_fd = file_data_ref(fd);
1272
1273         image_update_title(imd);
1274         image_state_set(imd, IMAGE_STATE_IMAGE);
1275
1276         if (imd->auto_refresh && imd->image_fd)
1277                 file_data_register_real_time_monitor(imd->image_fd);
1278 }
1279
1280 /* load a new image */
1281
1282 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1283 {
1284         if (imd->image_fd == fd) return;
1285
1286         image_change_real(imd, fd, NULL, NULL, zoom);
1287 }
1288
1289 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1290 {
1291         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1292 }
1293
1294 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1295 {
1296         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1297 }
1298
1299 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1300 {
1301         StereoPixbufData stereo_data = STEREO_PIXBUF_DEFAULT;
1302         /* read_exif and similar functions can actually notice that the file has changed and trigger
1303            a notification that removes the pixbuf from cache and unrefs it. Therefore we must ref it
1304            here before it is taken over by the renderer. */
1305         if (pixbuf) g_object_ref(pixbuf);
1306
1307         imd->orientation = EXIF_ORIENTATION_TOP_LEFT;
1308         if (imd->image_fd)
1309                 {
1310                 if (imd->image_fd->user_orientation)
1311                         {
1312                         imd->orientation = imd->image_fd->user_orientation;
1313                         }
1314                 else if (options->image.exif_rotate_enable)
1315                         {
1316                         imd->orientation = metadata_read_int(imd->image_fd, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
1317                         imd->image_fd->exif_orientation = imd->orientation;
1318                         }
1319                 }
1320
1321         if (pixbuf)
1322                 {
1323                 stereo_data = imd->user_stereo;
1324                 if (stereo_data == STEREO_PIXBUF_DEFAULT)
1325                         {
1326                         stereo_data = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(pixbuf), "stereo_data"));
1327                         }
1328                 }
1329
1330         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1331         if (imd->cm)
1332                 {
1333                 color_man_free(imd->cm);
1334                 imd->cm = NULL;
1335                 }
1336
1337         if (lazy)
1338                 {
1339                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation, stereo_data);
1340                 }
1341         else
1342                 {
1343                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1344                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1345                 pixbuf_renderer_set_stereo_data((PixbufRenderer *)imd->pr, stereo_data);
1346                 }
1347
1348         if (pixbuf) g_object_unref(pixbuf);
1349
1350         if (imd->color_profile_enable)
1351                 {
1352                 image_post_process_color(imd, 0, FALSE); /* TODO: error handling */
1353                 }
1354
1355         if (imd->cm || imd->desaturate)
1356                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1357
1358         image_state_set(imd, IMAGE_STATE_IMAGE);
1359 }
1360
1361 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1362 {
1363         CollectWindow *cw;
1364
1365         if (!cd || !info || !g_list_find(cd->list, info)) return;
1366
1367         image_change_real(imd, info->fd, cd, info, zoom);
1368         cw = collection_window_find(cd);
1369         if (cw)
1370                 {
1371                 collection_table_set_focus(cw->table, info);
1372                 collection_table_unselect_all(cw->table);
1373                 collection_table_select(cw->table,info);
1374                 }
1375 }
1376
1377 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1378 {
1379         if (collection_to_number(imd->collection) >= 0)
1380                 {
1381                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1382                         {
1383                         if (info) *info = imd->collection_info;
1384                         }
1385                 else
1386                         {
1387                         if (info) *info = NULL;
1388                         }
1389                 return imd->collection;
1390                 }
1391
1392         if (info) *info = NULL;
1393         return NULL;
1394 }
1395
1396 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1397 {
1398         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1399                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1400
1401         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1402                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1403 }
1404
1405 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1406 {
1407         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1408                 g_signal_connect(G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1409
1410         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1411                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1412
1413         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1414                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1415 }
1416
1417 /* this is more like a move function
1418  * it moves most data from source to imd
1419  */
1420 void image_move_from_image(ImageWindow *imd, ImageWindow *source)
1421 {
1422         if (imd == source) return;
1423
1424         imd->unknown = source->unknown;
1425
1426         imd->collection = source->collection;
1427         imd->collection_info = source->collection_info;
1428
1429         image_loader_free(imd->il);
1430         imd->il = NULL;
1431
1432         image_set_fd(imd, image_get_fd(source));
1433
1434
1435         if (source->il)
1436                 {
1437                 imd->il = source->il;
1438                 source->il = NULL;
1439
1440                 image_loader_sync_data(imd->il, source, imd);
1441
1442                 imd->delay_alter_type = source->delay_alter_type;
1443                 source->delay_alter_type = ALTER_NONE;
1444                 }
1445
1446         imd->color_profile_enable = source->color_profile_enable;
1447         imd->color_profile_input = source->color_profile_input;
1448         imd->color_profile_use_image = source->color_profile_use_image;
1449         color_man_free((ColorMan *)imd->cm);
1450         imd->cm = NULL;
1451         if (source->cm)
1452                 {
1453                 ColorMan *cm;
1454
1455                 imd->cm = source->cm;
1456                 source->cm = NULL;
1457
1458                 cm = (ColorMan *)imd->cm;
1459                 cm->imd = imd;
1460                 cm->func_done_data = imd;
1461                 }
1462
1463         file_data_unref(imd->read_ahead_fd);
1464         source->read_ahead_fd = NULL;
1465
1466         imd->orientation = source->orientation;
1467         imd->desaturate = source->desaturate;
1468
1469         imd->user_stereo = source->user_stereo;
1470
1471         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1472
1473         if (imd->cm || imd->desaturate)
1474                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1475         else
1476                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1477
1478 }
1479
1480 /* this is  a copy function
1481  * source stays unchanged
1482  */
1483 void image_copy_from_image(ImageWindow *imd, ImageWindow *source)
1484 {
1485         if (imd == source) return;
1486
1487         imd->unknown = source->unknown;
1488
1489         imd->collection = source->collection;
1490         imd->collection_info = source->collection_info;
1491
1492         image_loader_free(imd->il);
1493         imd->il = NULL;
1494
1495         image_set_fd(imd, image_get_fd(source));
1496
1497
1498         imd->color_profile_enable = source->color_profile_enable;
1499         imd->color_profile_input = source->color_profile_input;
1500         imd->color_profile_use_image = source->color_profile_use_image;
1501         color_man_free((ColorMan *)imd->cm);
1502         imd->cm = NULL;
1503         if (source->cm)
1504                 {
1505                 ColorMan *cm;
1506
1507                 imd->cm = source->cm;
1508                 source->cm = NULL;
1509
1510                 cm = (ColorMan *)imd->cm;
1511                 cm->imd = imd;
1512                 cm->func_done_data = imd;
1513                 }
1514
1515         image_loader_free(imd->read_ahead_il);
1516         imd->read_ahead_il = source->read_ahead_il;
1517         source->read_ahead_il = NULL;
1518         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1519
1520         file_data_unref(imd->read_ahead_fd);
1521         imd->read_ahead_fd = source->read_ahead_fd;
1522         source->read_ahead_fd = NULL;
1523
1524         imd->completed = source->completed;
1525         imd->state = source->state;
1526         source->state = IMAGE_STATE_NONE;
1527
1528         imd->orientation = source->orientation;
1529         imd->desaturate = source->desaturate;
1530
1531         imd->user_stereo = source->user_stereo;
1532
1533         pixbuf_renderer_copy(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1534
1535         if (imd->cm || imd->desaturate)
1536                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1537         else
1538                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1539
1540 }
1541
1542
1543 /* manipulation */
1544
1545 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1546 {
1547         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1548 }
1549
1550 void image_reload(ImageWindow *imd)
1551 {
1552         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1553
1554         image_change_complete(imd, image_zoom_get(imd));
1555 }
1556
1557 void image_scroll(ImageWindow *imd, gint x, gint y)
1558 {
1559         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1560 }
1561
1562 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1563                            gdouble x_align, gdouble y_align)
1564 {
1565         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1566 }
1567
1568 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1569 {
1570         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1571 }
1572
1573 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1574 {
1575         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1576 }
1577
1578 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1579 {
1580         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1581 }
1582
1583 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1584 {
1585         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1586 }
1587
1588 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1589 {
1590         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1591 }
1592
1593 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1594 {
1595         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1596 }
1597
1598 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1599 {
1600         PixbufRenderer *pr;
1601         gdouble zoom;
1602         gint width, height;
1603
1604         pr = (PixbufRenderer *)imd->pr;
1605
1606         if (!pixbuf_renderer_get_pixbuf(pr) ||
1607             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1608
1609         if (vertical)
1610                 {
1611                 zoom = (gdouble)pr->viewport_height / height;
1612                 }
1613         else
1614                 {
1615                 zoom = (gdouble)pr->viewport_width / width;
1616                 }
1617
1618         if (zoom < 1.0)
1619                 {
1620                 zoom = 0.0 - 1.0 / zoom;
1621                 }
1622
1623         pixbuf_renderer_zoom_set(pr, zoom);
1624 }
1625
1626 gdouble image_zoom_get(ImageWindow *imd)
1627 {
1628         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1629 }
1630
1631 gdouble image_zoom_get_real(ImageWindow *imd)
1632 {
1633         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1634 }
1635
1636 gchar *image_zoom_get_as_text(ImageWindow *imd)
1637 {
1638         gdouble zoom;
1639         gdouble scale;
1640         gdouble l = 1.0;
1641         gdouble r = 1.0;
1642         gint pl = 0;
1643         gint pr = 0;
1644         gchar *approx = " ";
1645
1646         zoom = image_zoom_get(imd);
1647         scale = image_zoom_get_real(imd);
1648
1649         if (zoom > 0.0)
1650                 {
1651                 l = zoom;
1652                 }
1653         else if (zoom < 0.0)
1654                 {
1655                 r = 0.0 - zoom;
1656                 }
1657         else if (zoom == 0.0 && scale != 0.0)
1658                 {
1659                 if (scale >= 1.0)
1660                         {
1661                         l = scale;
1662                         }
1663                 else
1664                         {
1665                         r = 1.0 / scale;
1666                         }
1667                 approx = "~";
1668                 }
1669
1670         if (rint(l) != l) pl = 2;
1671         if (rint(r) != r) pr = 2;
1672
1673         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1674 }
1675
1676 gdouble image_zoom_get_default(ImageWindow *imd)
1677 {
1678         gdouble zoom = 1.0;
1679
1680         switch (options->image.zoom_mode)
1681         {
1682         case ZOOM_RESET_ORIGINAL:
1683                 break;
1684         case ZOOM_RESET_FIT_WINDOW:
1685                 zoom = 0.0;
1686                 break;
1687         case ZOOM_RESET_NONE:
1688                 if (imd) zoom = image_zoom_get(imd);
1689                 break;
1690         }
1691
1692         return zoom;
1693 }
1694
1695 /* stereo */
1696 gint image_stereo_get(ImageWindow *imd)
1697 {
1698         return pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1699 }
1700
1701 void image_stereo_set(ImageWindow *imd, gint stereo_mode)
1702 {
1703         DEBUG_1("Setting stereo mode %04x for imd %p", stereo_mode, imd);
1704         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1705 }
1706
1707 void image_stereo_swap(ImageWindow *imd)
1708 {
1709         gint stereo_mode = pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1710         stereo_mode ^= PR_STEREO_SWAP;
1711         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1712 }
1713
1714 StereoPixbufData image_stereo_pixbuf_get(ImageWindow *imd)
1715 {
1716         return imd->user_stereo;
1717 }
1718
1719 void image_stereo_pixbuf_set(ImageWindow *imd, StereoPixbufData stereo_mode)
1720 {
1721         imd->user_stereo = stereo_mode;
1722         image_reload(imd);
1723 }
1724
1725 /* read ahead */
1726
1727 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1728 {
1729         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1730
1731         if (fd)
1732                 {
1733                 if (!file_cache_get(image_get_cache(), fd))
1734                         {
1735                         image_read_ahead_set(imd, fd);
1736                         }
1737                 }
1738         else
1739                 {
1740                 image_read_ahead_cancel(imd);
1741                 }
1742 }
1743
1744 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1745 {
1746         ImageWindow *imd = data;
1747
1748         if (!imd || !image_get_pixbuf(imd) ||
1749             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1750             !imd->image_fd || /* nothing to reload */
1751             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1752             ) return;
1753
1754         if ((type & NOTIFY_REREAD) && fd == imd->image_fd)
1755                 {
1756                 /* there is no need to reload on NOTIFY_CHANGE,
1757                    modified files should be detacted anyway and NOTIFY_REREAD should be recieved
1758                    or they are removed from the filelist completely on "move" and "delete"
1759                 */
1760                 DEBUG_1("Notify image: %s %04x", fd->path, type);
1761                 image_reload(imd);
1762                 }
1763 }
1764
1765 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1766 {
1767         if (!enable && imd->auto_refresh && imd->image_fd)
1768                 file_data_unregister_real_time_monitor(imd->image_fd);
1769
1770         if (enable && !imd->auto_refresh && imd->image_fd)
1771                 file_data_register_real_time_monitor(imd->image_fd);
1772
1773         imd->auto_refresh = enable;
1774 }
1775
1776 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1777 {
1778         imd->top_window_sync = allow_sync;
1779
1780         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1781 }
1782
1783 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1784 {
1785         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1786 }
1787
1788 void image_background_set_color_from_options(ImageWindow *imd, gboolean fullscreen)
1789 {
1790         GdkColor *color = NULL;
1791
1792         if ((options->image.use_custom_border_color && !fullscreen) ||
1793             (options->image.use_custom_border_color_in_fullscreen && fullscreen))
1794                 {
1795                 color = &options->image.border_color;
1796                 }
1797
1798         image_background_set_color(imd, color);
1799 }
1800
1801 void image_color_profile_set(ImageWindow *imd,
1802                              gint input_type,
1803                              gboolean use_image)
1804 {
1805         if (!imd) return;
1806
1807         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
1808                 {
1809                 return;
1810                 }
1811
1812         imd->color_profile_input = input_type;
1813         imd->color_profile_use_image = use_image;
1814 }
1815
1816 gboolean image_color_profile_get(ImageWindow *imd,
1817                                  gint *input_type,
1818                                  gboolean *use_image)
1819 {
1820         if (!imd) return FALSE;
1821
1822         if (input_type) *input_type = imd->color_profile_input;
1823         if (use_image) *use_image = imd->color_profile_use_image;
1824
1825         return TRUE;
1826 }
1827
1828 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1829 {
1830         if (!imd) return;
1831
1832         if (imd->color_profile_enable == enable) return;
1833
1834         imd->color_profile_enable = enable;
1835 }
1836
1837 gboolean image_color_profile_get_use(ImageWindow *imd)
1838 {
1839         if (!imd) return FALSE;
1840
1841         return imd->color_profile_enable;
1842 }
1843
1844 gboolean image_color_profile_get_status(ImageWindow *imd, gchar **image_profile, gchar **screen_profile)
1845 {
1846         ColorMan *cm;
1847         if (!imd) return FALSE;
1848
1849         cm = imd->cm;
1850         if (!cm) return FALSE;
1851         return color_man_get_status(cm, image_profile, screen_profile);
1852
1853 }
1854
1855 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1856 {
1857         if (!imd ||
1858             imd->delay_flip == delay) return;
1859
1860         imd->delay_flip = delay;
1861
1862         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1863
1864         if (!imd->delay_flip && imd->il)
1865                 {
1866                 PixbufRenderer *pr;
1867
1868                 pr = PIXBUF_RENDERER(imd->pr);
1869                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1870                 pr->pixbuf = NULL;
1871
1872                 image_load_pixbuf_ready(imd);
1873                 }
1874 }
1875
1876 void image_to_root_window(ImageWindow *imd, gboolean scaled)
1877 {
1878 #if !GTK_CHECK_VERSION(3,0,0)
1879         GdkScreen *screen;
1880         GdkWindow *rootwindow;
1881         GdkPixmap *pixmap;
1882         GdkPixbuf *pixbuf;
1883         GdkPixbuf *pb;
1884         gint width, height;
1885
1886         if (!imd) return;
1887
1888         pixbuf = image_get_pixbuf(imd);
1889         if (!pixbuf) return;
1890
1891         screen = gtk_widget_get_screen(imd->widget);
1892         rootwindow = gdk_screen_get_root_window(screen);
1893         if (gdk_window_get_visual(rootwindow) != gdk_visual_get_system()) return;
1894
1895         if (scaled)
1896                 {
1897                 width = gdk_screen_width();
1898                 height = gdk_screen_height();
1899                 }
1900         else
1901                 {
1902                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1903                 }
1904
1905         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1906
1907         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1908         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1909         gdk_window_clear(rootwindow);
1910         g_object_unref(pb);
1911         g_object_unref(pixmap);
1912
1913         gdk_flush();
1914 #endif
1915 }
1916
1917 void image_select(ImageWindow *imd, gboolean select)
1918 {
1919         if (!imd->has_frame) return;
1920
1921         if (select)
1922                 {
1923                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1924                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1925                 }
1926         else
1927                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1928 }
1929
1930 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1931 {
1932         if (!imd->has_frame) return;
1933
1934         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1935         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
1936 }
1937
1938 void image_grab_focus(ImageWindow *imd)
1939 {
1940         if (imd->has_frame)
1941                 {
1942                 gtk_widget_grab_focus(imd->frame);
1943                 }
1944         else
1945                 {
1946                 gtk_widget_grab_focus(imd->widget);
1947                 }
1948 }
1949
1950
1951 /*
1952  *-------------------------------------------------------------------
1953  * prefs sync
1954  *-------------------------------------------------------------------
1955  */
1956
1957 static void image_options_set(ImageWindow *imd)
1958 {
1959         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1960                                         "zoom_2pass", options->image.zoom_2pass,
1961                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1962                                         "scroll_reset", options->image.scroll_reset_method,
1963                                         "cache_display", options->image.tile_cache_max,
1964                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1965                                         "window_limit", options->image.limit_window_size,
1966                                         "window_limit_value", options->image.max_window_size,
1967                                         "autofit_limit", options->image.limit_autofit_size,
1968                                         "autofit_limit_value", options->image.max_autofit_size,
1969                                         "enlargement_limit_value", options->image.max_enlargement_size,
1970
1971                                         NULL);
1972
1973         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1974
1975         image_stereo_set(imd, options->stereo.mode);
1976         pixbuf_renderer_stereo_fixed_set((PixbufRenderer *)imd->pr,
1977                                         options->stereo.fixed_w, options->stereo.fixed_h,
1978                                         options->stereo.fixed_x1, options->stereo.fixed_y1,
1979                                         options->stereo.fixed_x2, options->stereo.fixed_y2);
1980 }
1981
1982 void image_options_sync(void)
1983 {
1984         GList *work;
1985
1986         work = image_list;
1987         while (work)
1988                 {
1989                 ImageWindow *imd;
1990
1991                 imd = work->data;
1992                 work = work->next;
1993
1994                 image_options_set(imd);
1995                 }
1996 }
1997
1998 /*
1999  *-------------------------------------------------------------------
2000  * init / destroy
2001  *-------------------------------------------------------------------
2002  */
2003
2004 static void image_free(ImageWindow *imd)
2005 {
2006         image_list = g_list_remove(image_list, imd);
2007
2008         if (imd->auto_refresh && imd->image_fd)
2009                 file_data_unregister_real_time_monitor(imd->image_fd);
2010
2011         file_data_unregister_notify_func(image_notify_cb, imd);
2012
2013         image_reset(imd);
2014
2015         image_read_ahead_cancel(imd);
2016
2017         file_data_unref(imd->image_fd);
2018         g_free(imd->title);
2019         g_free(imd->title_right);
2020         g_free(imd);
2021 }
2022
2023 static void image_destroy_cb(GtkWidget *widget, gpointer data)
2024 {
2025         ImageWindow *imd = data;
2026         image_free(imd);
2027 }
2028 #if GTK_CHECK_VERSION(3,0,0)
2029 gboolean selectable_frame_draw_cb(GtkWidget *widget, cairo_t *cr, gpointer data)
2030 {
2031         GtkAllocation allocation;
2032         gtk_widget_get_allocation(widget, &allocation);
2033         gtk_paint_flat_box(gtk_widget_get_style(widget),
2034                            cr,
2035                            gtk_widget_get_state(widget),
2036                            gtk_frame_get_shadow_type(GTK_FRAME(widget)),
2037                            widget,
2038                            NULL,
2039                            allocation.x + 3, allocation.y + 3,
2040                            allocation.width - 6, allocation.height - 6);
2041
2042         if (gtk_widget_has_focus(widget))
2043                 {
2044                 gtk_paint_focus(gtk_widget_get_style(widget), cr, GTK_STATE_ACTIVE,
2045                                 widget, "image_window",
2046                                 allocation.x, allocation.y,
2047                                 allocation.width - 1, allocation.height - 1);
2048                 }
2049         else
2050                 {
2051                 gtk_paint_shadow(gtk_widget_get_style(widget), cr, GTK_STATE_NORMAL, GTK_SHADOW_IN,
2052                                  widget, "image_window",
2053                                  allocation.x, allocation.y,
2054                                  allocation.width - 1, allocation.height - 1);
2055                 }
2056         return FALSE;
2057 }
2058
2059 #else
2060 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
2061 {
2062         GtkAllocation allocation;
2063         gtk_widget_get_allocation(widget, &allocation);
2064         gtk_paint_flat_box(gtk_widget_get_style(widget),
2065                            gtk_widget_get_window(widget),
2066                            gtk_widget_get_state(widget),
2067                            gtk_frame_get_shadow_type(GTK_FRAME(widget)),
2068                            NULL,
2069                            widget,
2070                            NULL,
2071                            allocation.x + 3, allocation.y + 3,
2072                            allocation.width - 6, allocation.height - 6);
2073
2074         if (gtk_widget_has_focus(widget))
2075                 {
2076                 gtk_paint_focus(gtk_widget_get_style(widget), gtk_widget_get_window(widget), GTK_STATE_ACTIVE,
2077                                 &event->area, widget, "image_window",
2078                                 allocation.x, allocation.y,
2079                                 allocation.width - 1, allocation.height - 1);
2080                 }
2081         else
2082                 {
2083                 gtk_paint_shadow(gtk_widget_get_style(widget), gtk_widget_get_window(widget), GTK_STATE_NORMAL, GTK_SHADOW_IN,
2084                                  &event->area, widget, "image_window",
2085                                  allocation.x, allocation.y,
2086                                  allocation.width - 1, allocation.height - 1);
2087                 }
2088         return FALSE;
2089 }
2090 #endif
2091
2092
2093 void image_set_frame(ImageWindow *imd, gboolean frame)
2094 {
2095         frame = !!frame;
2096
2097         if (frame == imd->has_frame) return;
2098
2099         gtk_widget_hide(imd->pr);
2100
2101         if (frame)
2102                 {
2103                 imd->frame = gtk_frame_new(NULL);
2104                 DEBUG_NAME(imd->frame);
2105                 g_object_ref(imd->pr);
2106                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
2107                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
2108
2109                 g_object_unref(imd->pr);
2110                 gtk_widget_set_can_focus(imd->frame, TRUE);
2111                 gtk_widget_set_app_paintable(imd->frame, TRUE);
2112
2113 #if GTK_CHECK_VERSION(3,0,0)
2114                 g_signal_connect(G_OBJECT(imd->frame), "draw",
2115                                  G_CALLBACK(selectable_frame_draw_cb), NULL);
2116 #else
2117                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
2118                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
2119 #endif
2120                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
2121                                  G_CALLBACK(image_focus_in_cb), imd);
2122
2123                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
2124                 gtk_widget_show(imd->frame);
2125                 }
2126         else
2127                 {
2128                 g_object_ref(imd->pr);
2129                 if (imd->frame)
2130                         {
2131                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
2132                         gtk_widget_destroy(imd->frame);
2133                         imd->frame = NULL;
2134                         }
2135                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
2136
2137                 g_object_unref(imd->pr);
2138                 }
2139
2140         gtk_widget_show(imd->pr);
2141
2142         imd->has_frame = frame;
2143 }
2144
2145 ImageWindow *image_new(gboolean frame)
2146 {
2147         ImageWindow *imd;
2148
2149         imd = g_new0(ImageWindow, 1);
2150
2151         imd->unknown = TRUE;
2152         imd->has_frame = -1; /* not initialized; for image_set_frame */
2153         imd->delay_alter_type = ALTER_NONE;
2154         imd->state = IMAGE_STATE_NONE;
2155         imd->color_profile_from_image = COLOR_PROFILE_NONE;
2156         imd->orientation = 1;
2157
2158         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
2159         DEBUG_NAME(imd->pr);
2160
2161         image_options_set(imd);
2162
2163         imd->widget = gtk_vbox_new(0, 0);
2164         DEBUG_NAME(imd->widget);
2165
2166         image_set_frame(imd, frame);
2167
2168         image_set_selectable(imd, 0);
2169
2170         g_signal_connect(G_OBJECT(imd->pr), "clicked",
2171                          G_CALLBACK(image_click_cb), imd);
2172         g_signal_connect(G_OBJECT(imd->pr), "button_press_event",
2173                          G_CALLBACK(image_press_cb), imd);
2174         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
2175                          G_CALLBACK(image_scroll_notify_cb), imd);
2176
2177         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
2178                          G_CALLBACK(image_scroll_cb), imd);
2179
2180         g_signal_connect(G_OBJECT(imd->pr), "destroy",
2181                          G_CALLBACK(image_destroy_cb), imd);
2182
2183         g_signal_connect(G_OBJECT(imd->pr), "zoom",
2184                          G_CALLBACK(image_zoom_cb), imd);
2185         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
2186                          G_CALLBACK(image_render_complete_cb), imd);
2187         g_signal_connect(G_OBJECT(imd->pr), "drag",
2188                          G_CALLBACK(image_drag_cb), imd);
2189
2190         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
2191
2192         image_list = g_list_append(image_list, imd);
2193
2194         return imd;
2195 }
2196
2197 void image_get_rectangle(gint *x1, gint *y1, gint *x2, gint *y2)
2198 {
2199         *x1 = rect_x1;
2200         *y1 = rect_y1;
2201         *x2 = rect_x2;
2202         *y2 = rect_y2;
2203 }
2204
2205 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */