src/image.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2012 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  *
   8  * This software is released under the GNU General Public License (GNU GPL).
   9  * Please read the included file COPYING for more information.
  10  * This software comes with no warranty of any kind, use at your own risk!
  11  */
  12
  13
  14 #include "main.h"
  15 #include "image.h"
  16
  17
  18 #include "collect.h"
  19 #include "color-man.h"
  20 #include "exif.h"
  21 #include "metadata.h"
  22 #include "histogram.h"
  23 #include "image-load.h"
  24 #include "image-overlay.h"
  25 #include "layout.h"
  26 #include "layout_image.h"
  27 #include "pixbuf-renderer.h"
  28 #include "pixbuf_util.h"
  29 #include "ui_fileops.h"
  30
  31 #include "filedata.h"
  32 #include "filecache.h"
  33
  34 #include <math.h>
  35
  36 static GList *image_list = NULL;
  37
  38 static void image_update_title(ImageWindow *imd);
  39 static void image_read_ahead_start(ImageWindow *imd);
  40 static void image_cache_set(ImageWindow *imd, FileData *fd);
  41
  42 /*
  43  *-------------------------------------------------------------------
  44  * 'signals'
  45  *-------------------------------------------------------------------
  46  */
  47
  48 static void image_click_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  49 {
  50         ImageWindow *imd = data;
  51
  52         if (imd->func_button)
  53                 {
  54                 imd->func_button(imd, event, imd->data_button);
  55                 }
  56 }
  57
  58 static void image_drag_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  59 {
  60         ImageWindow *imd = data;
  61         gint width, height;
  62
  63         pixbuf_renderer_get_scaled_size(pr, &width, &height);
  64
  65         if (imd->func_drag)
  66                 {
  67                 imd->func_drag(imd, event,
  68                                (gfloat)(pr->drag_last_x - event->x) / width,
  69                                (gfloat)(pr->drag_last_y - event->y) / height,
  70                                imd->data_button);
  71                 }
  72 }
  73
  74 static void image_scroll_notify_cb(PixbufRenderer *pr, gpointer data)
  75 {
  76         ImageWindow *imd = data;
  77
  78         if (imd->func_scroll_notify && pr->scale)
  79                 {
  80                 imd->func_scroll_notify(imd,
  81                                         (gint)((gdouble)pr->x_scroll / pr->scale),
  82                                         (gint)((gdouble)pr->y_scroll / pr->scale),
  83                                         (gint)((gdouble)pr->image_width - pr->vis_width / pr->scale),
  84                                         (gint)((gdouble)pr->image_height - pr->vis_height / pr->scale),
  85                                         imd->data_scroll_notify);
  86                 }
  87 }
  88
  89 static void image_update_util(ImageWindow *imd)
  90 {
  91         if (imd->func_update) imd->func_update(imd, imd->data_update);
  92 }
  93
  94
  95 static void image_complete_util(ImageWindow *imd, gboolean preload)
  96 {
  97         if (imd->il && image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il)) return;
  98
  99         DEBUG_1("%s image load completed \"%s\" (%s)", get_exec_time(),
 100                           (preload) ? (imd->read_ahead_fd ? imd->read_ahead_fd->path : "null") :
 101                                       (imd->image_fd ? imd->image_fd->path : "null"),
 102                           (preload) ? "preload" : "current");
 103
 104         if (!preload) imd->completed = TRUE;
 105         if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
 106 }
 107
 108 static void image_render_complete_cb(PixbufRenderer *pr, gpointer data)
 109 {
 110         ImageWindow *imd = data;
 111
 112         image_complete_util(imd, FALSE);
 113 }
 114
 115 static void image_state_set(ImageWindow *imd, ImageState state)
 116 {
 117         if (state == IMAGE_STATE_NONE)
 118                 {
 119                 imd->state = state;
 120                 }
 121         else
 122                 {
 123                 imd->state |= state;
 124                 }
 125         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 126 }
 127
 128 static void image_state_unset(ImageWindow *imd, ImageState state)
 129 {
 130         imd->state &= ~state;
 131         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 132 }
 133
 134 static void image_zoom_cb(PixbufRenderer *pr, gdouble zoom, gpointer data)
 135 {
 136         ImageWindow *imd = data;
 137
 138         if (imd->title_show_zoom) image_update_title(imd);
 139         image_state_set(imd, IMAGE_STATE_IMAGE);
 140         image_update_util(imd);
 141 }
 142
 143 /*
 144  *-------------------------------------------------------------------
 145  * misc
 146  *-------------------------------------------------------------------
 147  */
 148
 149 static void image_update_title(ImageWindow *imd)
 150 {
 151         gchar *title = NULL;
 152         gchar *zoom = NULL;
 153         gchar *collection = NULL;
 154
 155         if (!imd->top_window) return;
 156
 157         if (imd->collection && collection_to_number(imd->collection) >= 0)
 158                 {
 159                 const gchar *name = imd->collection->name;
 160                 if (!name) name = _("Untitled");
 161                 collection = g_strdup_printf(_(" (Collection %s)"), name);
 162                 }
 163
 164         if (imd->title_show_zoom)
 165                 {
 166                 gchar *buf = image_zoom_get_as_text(imd);
 167                 zoom = g_strconcat(" [", buf, "]", NULL);
 168                 g_free(buf);
 169                 }
 170
 171         title = g_strdup_printf("%s%s%s%s%s%s",
 172                 imd->title ? imd->title : "",
 173                 imd->image_fd ? imd->image_fd->name : "",
 174                 zoom ? zoom : "",
 175                 collection ? collection : "",
 176                 imd->image_fd ? " - " : "",
 177                 imd->title_right ? imd->title_right : "");
 178
 179         gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
 180
 181         g_free(title);
 182         g_free(zoom);
 183         g_free(collection);
 184 }
 185
 186 /*
 187  *-------------------------------------------------------------------
 188  * rotation, flip, etc.
 189  *-------------------------------------------------------------------
 190  */
 191 static gboolean image_get_x11_screen_profile(ImageWindow *imd, guchar **screen_profile, gint *screen_profile_len)
 192 {
 193         GdkScreen *screen = gtk_widget_get_screen(imd->widget);;
 194         GdkAtom    type   = GDK_NONE;
 195         gint       format = 0;
 196
 197         return (gdk_property_get(gdk_screen_get_root_window(screen),
 198                                  gdk_atom_intern ("_ICC_PROFILE", FALSE),
 199                                  GDK_NONE,
 200                                  0, 64 * 1024 * 1024, FALSE,
 201                                  &type, &format, screen_profile_len, screen_profile) && *screen_profile_len > 0);
 202 }
 203
 204 static gboolean image_post_process_color(ImageWindow *imd, gint start_row, gboolean run_in_bg)
 205 {
 206         ColorMan *cm;
 207         ColorManProfileType input_type;
 208         ColorManProfileType screen_type;
 209         const gchar *input_file = NULL;
 210         const gchar *screen_file = NULL;
 211         guchar *profile = NULL;
 212         guint profile_len;
 213         guchar *screen_profile = NULL;
 214         gint screen_profile_len;
 215         ExifData *exif;
 216
 217         if (imd->cm) return FALSE;
 218
 219         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
 220             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
 221                 {
 222                 const gchar *file = options->color_profile.input_file[imd->color_profile_input - COLOR_PROFILE_FILE];
 223
 224                 if (!is_readable_file(file)) return FALSE;
 225
 226                 input_type = COLOR_PROFILE_FILE;
 227                 input_file = file;
 228                 }
 229         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
 230                  imd->color_profile_input <  COLOR_PROFILE_FILE)
 231                 {
 232                 input_type = imd->color_profile_input;
 233                 input_file = NULL;
 234                 }
 235         else
 236                 {
 237                 return FALSE;
 238                 }
 239
 240         if (options->color_profile.use_x11_screen_profile &&
 241             image_get_x11_screen_profile(imd, &screen_profile, &screen_profile_len))
 242                 {
 243                 screen_type = COLOR_PROFILE_MEM;
 244                 DEBUG_1("Using X11 screen profile, length: %d", screen_profile_len);
 245                 }
 246         else if (options->color_profile.screen_file &&
 247             is_readable_file(options->color_profile.screen_file))
 248                 {
 249                 screen_type = COLOR_PROFILE_FILE;
 250                 screen_file = options->color_profile.screen_file;
 251                 }
 252         else
 253                 {
 254                 screen_type = COLOR_PROFILE_SRGB;
 255                 screen_file = NULL;
 256                 }
 257
 258
 259         imd->color_profile_from_image = COLOR_PROFILE_NONE;
 260
 261         exif = exif_read_fd(imd->image_fd);
 262
 263         if (exif)
 264                 {
 265                 profile = exif_get_color_profile(exif, &profile_len);
 266                 if (profile)
 267                         {
 268                         if (!imd->color_profile_use_image)
 269                                 {
 270                                 g_free(profile);
 271                                 profile = NULL;
 272                                 }
 273                         DEBUG_1("Found embedded color profile");
 274                         imd->color_profile_from_image = COLOR_PROFILE_MEM;
 275                         }
 276                 else
 277                         {
 278                         gchar *interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
 279
 280                         if (interop_index)
 281                                 {
 282                                 /* Exif 2.21 specification */
 283                                 if (!strcmp(interop_index, "R98"))
 284                                         {
 285                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 286                                         DEBUG_1("Found EXIF 2.21 ColorSpace of sRGB");
 287                                         }
 288                                 else if (!strcmp(interop_index, "R03"))
 289                                         {
 290                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 291                                         DEBUG_1("Found EXIF 2.21 ColorSpace of AdobeRGB");
 292                                         }
 293                                 g_free(interop_index);
 294                                 }
 295                         else
 296                                 {
 297                                 gint cs;
 298
 299                                 /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
 300                                 if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
 301                                 if (cs == 1)
 302                                         {
 303                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 304                                         DEBUG_1("Found EXIF 2.2 ColorSpace of sRGB");
 305                                         }
 306                                 else if (cs == 2)
 307                                         {
 308                                         /* non-standard way of specifying AdobeRGB (used by some software) */
 309                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 310                                         DEBUG_1("Found EXIF 2.2 ColorSpace of AdobeRGB");
 311                                         }
 312                                 }
 313
 314                         if (imd->color_profile_use_image && imd->color_profile_from_image != COLOR_PROFILE_NONE)
 315                                {
 316                                input_type = imd->color_profile_from_image;
 317                                input_file = NULL;
 318                                }
 319                         }
 320
 321                 exif_free_fd(imd->image_fd, exif);
 322                 }
 323
 324
 325         if (profile)
 326                 {
 327                 cm = color_man_new_embedded(run_in_bg ? imd : NULL, NULL,
 328                                             profile, profile_len,
 329                                             screen_type, screen_file, screen_profile, screen_profile_len);
 330                 g_free(profile);
 331                 }
 332         else
 333                 {
 334                 cm = color_man_new(run_in_bg ? imd : NULL, NULL,
 335                                    input_type, input_file,
 336                                    screen_type, screen_file, screen_profile, screen_profile_len);
 337                 }
 338
 339         if (cm)
 340                 {
 341                 if (start_row > 0)
 342                         {
 343                         cm->row = start_row;
 344                         cm->incremental_sync = TRUE;
 345                         }
 346
 347                 imd->cm = (gpointer)cm;
 348 #if 0
 349                 if (run_in_bg) color_man_start_bg(imd->cm, image_post_process_color_cb, imd);
 350 #endif
 351                 }
 352
 353         image_update_util(imd);
 354
 355         if (screen_profile)
 356                 {
 357                 g_free(screen_profile);
 358                 screen_profile = NULL;
 359                 }
 360
 361         return !!cm;
 362 }
 363
 364
 365 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 366 {
 367         ImageWindow *imd = (ImageWindow *)data;
 368         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
 369         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 370
 371 }
 372
 373 void image_alter_orientation(ImageWindow *imd, AlterType type)
 374 {
 375         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 376         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 377         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 378         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 379         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 380
 381
 382         if (!imd || !imd->pr || !imd->image_fd) return;
 383
 384         if (imd->orientation < 1 || imd->orientation > 8) imd->orientation = 1;
 385
 386         switch (type)
 387                 {
 388                 case ALTER_ROTATE_90:
 389                         imd->orientation = rotate_90[imd->orientation];
 390                         break;
 391                 case ALTER_ROTATE_90_CC:
 392                         imd->orientation = rotate_90_cc[imd->orientation];
 393                         break;
 394                 case ALTER_ROTATE_180:
 395                         imd->orientation = rotate_180[imd->orientation];
 396                         break;
 397                 case ALTER_MIRROR:
 398                         imd->orientation = mirror[imd->orientation];
 399                         break;
 400                 case ALTER_FLIP:
 401                         imd->orientation = flip[imd->orientation];
 402                         break;
 403                 case ALTER_NONE:
 404                         imd->orientation = imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1;
 405                         break;
 406                 default:
 407                         return;
 408                         break;
 409                 }
 410
 411         if (imd->orientation != imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1)
 412                 {
 413                 if (!options->metadata.write_orientation)
 414                         {
 415                         /* user_orientation does not work together with options->metadata.write_orientation,
 416                            use either one or the other.
 417                            we must however handle switching metadata.write_orientation on and off, therefore
 418                            we just disable referencing new fd's, not unreferencing the old ones
 419                         */
 420                         if (imd->image_fd->user_orientation == 0) file_data_ref(imd->image_fd);
 421                         imd->image_fd->user_orientation = imd->orientation;
 422                         }
 423                 }
 424         else
 425                 {
 426                 if (imd->image_fd->user_orientation != 0) file_data_unref(imd->image_fd);
 427                 imd->image_fd->user_orientation = 0;
 428                 }
 429
 430         if (options->metadata.write_orientation)
 431                 {
 432                 if (type == ALTER_NONE)
 433                         {
 434                         metadata_write_revert(imd->image_fd, ORIENTATION_KEY);
 435                         }
 436                 else
 437                         {
 438                         metadata_write_int(imd->image_fd, ORIENTATION_KEY, imd->orientation);
 439                         }
 440                 }
 441
 442         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 443 }
 444
 445 void image_set_desaturate(ImageWindow *imd, gboolean desaturate)
 446 {
 447         imd->desaturate = desaturate;
 448         if (imd->cm || imd->desaturate)
 449                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 450         else
 451                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 452         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 453 }
 454
 455 gboolean image_get_desaturate(ImageWindow *imd)
 456 {
 457         return imd->desaturate;
 458 }
 459
 460 /*
 461  *-------------------------------------------------------------------
 462  * read ahead (prebuffer)
 463  *-------------------------------------------------------------------
 464  */
 465
 466 static void image_read_ahead_cancel(ImageWindow *imd)
 467 {
 468         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 469
 470         image_loader_free(imd->read_ahead_il);
 471         imd->read_ahead_il = NULL;
 472
 473         file_data_unref(imd->read_ahead_fd);
 474         imd->read_ahead_fd = NULL;
 475 }
 476
 477 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 478 {
 479         ImageWindow *imd = data;
 480
 481         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 482
 483         if (!imd->read_ahead_fd->pixbuf)
 484                 {
 485                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 486                 if (imd->read_ahead_fd->pixbuf)
 487                         {
 488                         g_object_ref(imd->read_ahead_fd->pixbuf);
 489                         image_cache_set(imd, imd->read_ahead_fd);
 490                         }
 491                 }
 492         image_loader_free(imd->read_ahead_il);
 493         imd->read_ahead_il = NULL;
 494
 495         image_complete_util(imd, TRUE);
 496 }
 497
 498 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 499 {
 500         /* we even treat errors as success, maybe at least some of the file was ok */
 501         image_read_ahead_done_cb(il, data);
 502 }
 503
 504 static void image_read_ahead_start(ImageWindow *imd)
 505 {
 506         /* already started ? */
 507         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 508
 509         /* still loading ?, do later */
 510         if (imd->il /*|| imd->cm*/) return;
 511
 512         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 513
 514         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 515
 516         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 517
 518         g_signal_connect(G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 519         g_signal_connect(G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 520
 521         if (!image_loader_start(imd->read_ahead_il))
 522                 {
 523                 image_read_ahead_cancel(imd);
 524                 image_complete_util(imd, TRUE);
 525                 }
 526 }
 527
 528 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 529 {
 530         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 531
 532         image_read_ahead_cancel(imd);
 533
 534         imd->read_ahead_fd = file_data_ref(fd);
 535
 536         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 537
 538         image_read_ahead_start(imd);
 539 }
 540
 541 /*
 542  *-------------------------------------------------------------------
 543  * post buffering
 544  *-------------------------------------------------------------------
 545  */
 546
 547 static void image_cache_release_cb(FileData *fd)
 548 {
 549         g_object_unref(fd->pixbuf);
 550         fd->pixbuf = NULL;
 551 }
 552
 553 static FileCacheData *image_get_cache(void)
 554 {
 555         static FileCacheData *cache = NULL;
 556         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 557         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 558         return cache;
 559 }
 560
 561 static void image_cache_set(ImageWindow *imd, FileData *fd)
 562 {
 563         g_assert(fd->pixbuf);
 564
 565         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 566         file_data_send_notification(fd, NOTIFY_PIXBUF); /* to update histogram */
 567 }
 568
 569 static gint image_cache_get(ImageWindow *imd)
 570 {
 571         gint success;
 572
 573         success = file_cache_get(image_get_cache(), imd->image_fd);
 574         if (success)
 575                 {
 576                 g_assert(imd->image_fd->pixbuf);
 577                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 578                 }
 579
 580 //      file_cache_dump(image_get_cache());
 581         return success;
 582 }
 583
 584 /*
 585  *-------------------------------------------------------------------
 586  * loading
 587  *-------------------------------------------------------------------
 588  */
 589
 590 static void image_load_pixbuf_ready(ImageWindow *imd)
 591 {
 592         if (image_get_pixbuf(imd) || !imd->il) return;
 593
 594         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 595 }
 596
 597 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 598 {
 599         ImageWindow *imd = data;
 600         PixbufRenderer *pr;
 601
 602         pr = (PixbufRenderer *)imd->pr;
 603
 604         if (imd->delay_flip &&
 605             pr->pixbuf != image_loader_get_pixbuf(il))
 606                 {
 607                 return;
 608                 }
 609
 610         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 611
 612         pixbuf_renderer_area_changed(pr, x, y, w, h);
 613 }
 614
 615 static void image_load_done_cb(ImageLoader *il, gpointer data)
 616 {
 617         ImageWindow *imd = data;
 618
 619         DEBUG_1("%s image done", get_exec_time());
 620
 621         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 622                 {
 623                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
 624                 image_cache_set(imd, imd->image_fd);
 625                 }
 626         /* call the callback triggered by image_state after fd->pixbuf is set */
 627         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 628         image_state_unset(imd, IMAGE_STATE_LOADING);
 629
 630         if (!image_loader_get_pixbuf(imd->il))
 631                 {
 632                 GdkPixbuf *pixbuf;
 633
 634                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 635                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 636                 g_object_unref(pixbuf);
 637
 638                 imd->unknown = TRUE;
 639                 }
 640         else if (imd->delay_flip &&
 641             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 642                 {
 643                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 644                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 645                 }
 646
 647         image_loader_free(imd->il);
 648         imd->il = NULL;
 649
 650 //      image_post_process(imd, TRUE);
 651
 652         image_read_ahead_start(imd);
 653 }
 654
 655 static void image_load_size_cb(ImageLoader *il, guint width, guint height, gpointer data)
 656 {
 657         ImageWindow *imd = data;
 658
 659         DEBUG_1("image_load_size_cb: %dx%d", width, height);
 660         pixbuf_renderer_set_size_early((PixbufRenderer *)imd->pr, width, height);
 661 }
 662
 663 static void image_load_error_cb(ImageLoader *il, gpointer data)
 664 {
 665         DEBUG_1("%s image error", get_exec_time());
 666
 667         /* even on error handle it like it was done,
 668          * since we have a pixbuf with _something_ */
 669
 670         image_load_done_cb(il, data);
 671 }
 672
 673 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
 674 {
 675         g_assert(imd->il);
 676         if (override_old_signals)
 677                 {
 678                 /* override the old signals */
 679                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 680                 }
 681
 682         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 683         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 684         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 685         g_signal_connect(G_OBJECT(imd->il), "size_prepared", (GCallback)image_load_size_cb, imd);
 686 }
 687
 688 /* this read ahead is located here merely for the callbacks, above */
 689
 690 static gboolean image_read_ahead_check(ImageWindow *imd)
 691 {
 692         if (!imd->read_ahead_fd) return FALSE;
 693         if (imd->il) return FALSE;
 694
 695         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 696                 {
 697                 image_read_ahead_cancel(imd);
 698                 return FALSE;
 699                 }
 700
 701         if (imd->read_ahead_il)
 702                 {
 703                 imd->il = imd->read_ahead_il;
 704                 imd->read_ahead_il = NULL;
 705
 706                 image_load_set_signals(imd, TRUE);
 707
 708                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 709                 image_state_set(imd, IMAGE_STATE_LOADING);
 710
 711                 if (!imd->delay_flip)
 712                         {
 713                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 714                         }
 715
 716                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 717
 718                 file_data_unref(imd->read_ahead_fd);
 719                 imd->read_ahead_fd = NULL;
 720                 return TRUE;
 721                 }
 722         else if (imd->read_ahead_fd->pixbuf)
 723                 {
 724                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
 725
 726                 file_data_unref(imd->read_ahead_fd);
 727                 imd->read_ahead_fd = NULL;
 728
 729 //              image_post_process(imd, FALSE);
 730                 return TRUE;
 731                 }
 732
 733         image_read_ahead_cancel(imd);
 734         return FALSE;
 735 }
 736
 737 static gboolean image_load_begin(ImageWindow *imd, FileData *fd)
 738 {
 739         DEBUG_1("%s image begin", get_exec_time());
 740
 741         if (imd->il) return FALSE;
 742
 743         imd->completed = FALSE;
 744         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 745
 746         if (image_cache_get(imd))
 747                 {
 748                 DEBUG_1("from cache: %s", imd->image_fd->path);
 749                 return TRUE;
 750                 }
 751
 752         if (image_read_ahead_check(imd))
 753                 {
 754                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 755                 return TRUE;
 756                 }
 757
 758         if (!imd->delay_flip && image_get_pixbuf(imd))
 759                 {
 760                 PixbufRenderer *pr;
 761
 762                 pr = PIXBUF_RENDERER(imd->pr);
 763                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 764                 pr->pixbuf = NULL;
 765                 }
 766
 767         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 768
 769         imd->il = image_loader_new(fd);
 770
 771         image_load_set_signals(imd, FALSE);
 772
 773         if (!image_loader_start(imd->il))
 774                 {
 775                 DEBUG_1("image start error");
 776
 777                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 778
 779                 image_loader_free(imd->il);
 780                 imd->il = NULL;
 781
 782                 image_complete_util(imd, FALSE);
 783
 784                 return FALSE;
 785                 }
 786
 787         image_state_set(imd, IMAGE_STATE_LOADING);
 788
 789 /*
 790         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
 791                 {
 792                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 793                 }
 794 */
 795         return TRUE;
 796 }
 797
 798 static void image_reset(ImageWindow *imd)
 799 {
 800         /* stops anything currently being done */
 801
 802         DEBUG_1("%s image reset", get_exec_time());
 803
 804         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 805
 806         image_loader_free(imd->il);
 807         imd->il = NULL;
 808
 809         color_man_free((ColorMan *)imd->cm);
 810         imd->cm = NULL;
 811
 812         imd->delay_alter_type = ALTER_NONE;
 813
 814         image_state_set(imd, IMAGE_STATE_NONE);
 815 }
 816
 817 /*
 818  *-------------------------------------------------------------------
 819  * image changer
 820  *-------------------------------------------------------------------
 821  */
 822
 823 static void image_change_complete(ImageWindow *imd, gdouble zoom)
 824 {
 825         image_reset(imd);
 826         imd->unknown = TRUE;
 827
 828         if (!imd->image_fd)
 829                 {
 830                 image_change_pixbuf(imd, NULL, zoom, FALSE);
 831                 }
 832         else
 833                 {
 834
 835                 if (is_readable_file(imd->image_fd->path))
 836                         {
 837                         PixbufRenderer *pr;
 838
 839                         pr = PIXBUF_RENDERER(imd->pr);
 840                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
 841
 842                         if (image_load_begin(imd, imd->image_fd))
 843                                 {
 844                                 imd->unknown = FALSE;
 845                                 }
 846                         }
 847
 848                 if (imd->unknown == TRUE)
 849                         {
 850                         GdkPixbuf *pixbuf;
 851
 852                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 853                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 854                         g_object_unref(pixbuf);
 855                         }
 856                 }
 857
 858         image_update_util(imd);
 859 }
 860
 861 static void image_change_real(ImageWindow *imd, FileData *fd,
 862                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 863 {
 864
 865         imd->collection = cd;
 866         imd->collection_info = info;
 867
 868         if (imd->auto_refresh && imd->image_fd)
 869                 file_data_unregister_real_time_monitor(imd->image_fd);
 870
 871         file_data_unref(imd->image_fd);
 872         imd->image_fd = file_data_ref(fd);
 873
 874
 875         image_change_complete(imd, zoom);
 876
 877         image_update_title(imd);
 878         image_state_set(imd, IMAGE_STATE_IMAGE);
 879
 880         if (imd->auto_refresh && imd->image_fd)
 881                 file_data_register_real_time_monitor(imd->image_fd);
 882 }
 883
 884 /*
 885  *-------------------------------------------------------------------
 886  * focus stuff
 887  *-------------------------------------------------------------------
 888  */
 889
 890 static void image_focus_paint(ImageWindow *imd, gboolean has_focus, GdkRectangle *area)
 891 {
 892         GtkWidget *widget;
 893
 894         widget = imd->widget;
 895         if (!gtk_widget_get_window(widget)) return;
 896
 897         GtkAllocation allocation;
 898         gtk_widget_get_allocation(widget, &allocation);
 899 #if !GTK_CHECK_VERSION(3,0,0)
 900         if (has_focus)
 901                 {
 902                 gtk_paint_focus(gtk_widget_get_style(widget), gtk_widget_get_window(widget), GTK_STATE_ACTIVE,
 903                                 area, widget, "image_window",
 904                                 allocation.x, allocation.y,
 905                                 allocation.width - 1, allocation.height - 1);
 906                 }
 907         else
 908                 {
 909                 gtk_paint_shadow(gtk_widget_get_style(widget), gtk_widget_get_window(widget), GTK_STATE_NORMAL, GTK_SHADOW_IN,
 910                                  area, widget, "image_window",
 911                                  allocation.x, allocation.y,
 912                                  allocation.width - 1, allocation.height - 1);
 913                 }
 914 #endif
 915 }
 916
 917 static gboolean image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 918 {
 919         ImageWindow *imd = data;
 920
 921 #if GTK_CHECK_VERSION(2,20,0)
 922         image_focus_paint(imd, gtk_widget_has_focus(widget), &event->area);
 923 #else
 924         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 925 #endif
 926         return TRUE;
 927 }
 928
 929 static gboolean image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 930 {
 931         ImageWindow *imd = data;
 932
 933         gtk_widget_grab_focus(imd->widget);
 934         image_focus_paint(imd, TRUE, NULL);
 935
 936         if (imd->func_focus_in)
 937                 {
 938                 imd->func_focus_in(imd, imd->data_focus_in);
 939                 }
 940
 941         return TRUE;
 942 }
 943
 944 static gboolean image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 945 {
 946         ImageWindow *imd = data;
 947
 948 //      GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 949         image_focus_paint(imd, FALSE, NULL);
 950
 951         return TRUE;
 952 }
 953
 954 static gboolean image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 955 {
 956         ImageWindow *imd = data;
 957
 958         if (imd->func_scroll &&
 959             event && event->type == GDK_SCROLL)
 960                 {
 961                 imd->func_scroll(imd, event, imd->data_scroll);
 962                 return TRUE;
 963                 }
 964
 965         return FALSE;
 966 }
 967
 968 /*
 969  *-------------------------------------------------------------------
 970  * public interface
 971  *-------------------------------------------------------------------
 972  */
 973
 974 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 975                          const gchar *title, const gchar *title_right, gboolean show_zoom)
 976 {
 977         imd->top_window = window;
 978         g_free(imd->title);
 979         imd->title = g_strdup(title);
 980         g_free(imd->title_right);
 981         imd->title_right = g_strdup(title_right);
 982         imd->title_show_zoom = show_zoom;
 983
 984         if (!options->image.fit_window_to_image) window = NULL;
 985
 986         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 987
 988         image_update_title(imd);
 989 }
 990
 991 void image_set_update_func(ImageWindow *imd,
 992                            void (*func)(ImageWindow *imd, gpointer data),
 993                            gpointer data)
 994 {
 995         imd->func_update = func;
 996         imd->data_update = data;
 997 }
 998
 999 void image_set_complete_func(ImageWindow *imd,
1000                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
1001                              gpointer data)
1002 {
1003         imd->func_complete = func;
1004         imd->data_complete = data;
1005 }
1006
1007 void image_set_state_func(ImageWindow *imd,
1008                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
1009                         gpointer data)
1010 {
1011         imd->func_state = func;
1012         imd->data_state = data;
1013 }
1014
1015
1016 void image_set_button_func(ImageWindow *imd,
1017                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
1018                            gpointer data)
1019 {
1020         imd->func_button = func;
1021         imd->data_button = data;
1022 }
1023
1024 void image_set_drag_func(ImageWindow *imd,
1025                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
1026                            gpointer data)
1027 {
1028         imd->func_drag = func;
1029         imd->data_drag = data;
1030 }
1031
1032 void image_set_scroll_func(ImageWindow *imd,
1033                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
1034                            gpointer data)
1035 {
1036         imd->func_scroll = func;
1037         imd->data_scroll = data;
1038 }
1039
1040 void image_set_scroll_notify_func(ImageWindow *imd,
1041                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
1042                                   gpointer data)
1043 {
1044         imd->func_scroll_notify = func;
1045         imd->data_scroll_notify = data;
1046 }
1047
1048 void image_set_focus_in_func(ImageWindow *imd,
1049                            void (*func)(ImageWindow *, gpointer),
1050                            gpointer data)
1051 {
1052         imd->func_focus_in = func;
1053         imd->data_focus_in = data;
1054 }
1055
1056 /* path, name */
1057
1058 const gchar *image_get_path(ImageWindow *imd)
1059 {
1060         if (imd->image_fd == NULL) return NULL;
1061         return imd->image_fd->path;
1062 }
1063
1064 const gchar *image_get_name(ImageWindow *imd)
1065 {
1066         if (imd->image_fd == NULL) return NULL;
1067         return imd->image_fd->name;
1068 }
1069
1070 FileData *image_get_fd(ImageWindow *imd)
1071 {
1072         return imd->image_fd;
1073 }
1074
1075 /* merely changes path string, does not change the image! */
1076 void image_set_fd(ImageWindow *imd, FileData *fd)
1077 {
1078         if (imd->auto_refresh && imd->image_fd)
1079                 file_data_unregister_real_time_monitor(imd->image_fd);
1080
1081         file_data_unref(imd->image_fd);
1082         imd->image_fd = file_data_ref(fd);
1083
1084         image_update_title(imd);
1085         image_state_set(imd, IMAGE_STATE_IMAGE);
1086
1087         if (imd->auto_refresh && imd->image_fd)
1088                 file_data_register_real_time_monitor(imd->image_fd);
1089 }
1090
1091 /* load a new image */
1092
1093 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1094 {
1095         if (imd->image_fd == fd) return;
1096
1097         image_change_real(imd, fd, NULL, NULL, zoom);
1098 }
1099
1100 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1101 {
1102         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1103 }
1104
1105 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1106 {
1107         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1108 }
1109
1110 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1111 {
1112         StereoPixbufData stereo_data = STEREO_PIXBUF_DEFAULT;
1113         /* read_exif and similar functions can actually notice that the file has changed and trigger
1114            a notification that removes the pixbuf from cache and unrefs it. Therefore we must ref it
1115            here before it is taken over by the renderer. */
1116         if (pixbuf) g_object_ref(pixbuf);
1117
1118         if (imd->image_fd)
1119                 {
1120                 if (imd->image_fd->user_orientation)
1121                         {
1122                         imd->orientation = imd->image_fd->user_orientation;
1123                         }
1124                 else if (options->image.exif_rotate_enable)
1125                         {
1126                         imd->orientation = metadata_read_int(imd->image_fd, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
1127                         imd->image_fd->exif_orientation = imd->orientation;
1128                         }
1129                 }
1130
1131         if (pixbuf)
1132                 {
1133                 stereo_data = imd->user_stereo;
1134                 if (stereo_data == STEREO_PIXBUF_DEFAULT)
1135                         {
1136                         stereo_data = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(pixbuf), "stereo_data"));
1137                         }
1138                 }
1139
1140         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1141         if (imd->cm)
1142                 {
1143                 color_man_free(imd->cm);
1144                 imd->cm = NULL;
1145                 }
1146
1147         if (lazy)
1148                 {
1149                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation, stereo_data);
1150                 }
1151         else
1152                 {
1153                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1154                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1155                 pixbuf_renderer_set_stereo_data((PixbufRenderer *)imd->pr, stereo_data);
1156                 }
1157
1158         if (pixbuf) g_object_unref(pixbuf);
1159
1160         if (imd->color_profile_enable)
1161                 {
1162                 image_post_process_color(imd, 0, FALSE); /* TODO: error handling */
1163                 }
1164
1165         if (imd->cm || imd->desaturate)
1166                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1167
1168         image_state_set(imd, IMAGE_STATE_IMAGE);
1169 }
1170
1171 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1172 {
1173         if (!cd || !info || !g_list_find(cd->list, info)) return;
1174
1175         image_change_real(imd, info->fd, cd, info, zoom);
1176 }
1177
1178 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1179 {
1180         if (collection_to_number(imd->collection) >= 0)
1181                 {
1182                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1183                         {
1184                         if (info) *info = imd->collection_info;
1185                         }
1186                 else
1187                         {
1188                         if (info) *info = NULL;
1189                         }
1190                 return imd->collection;
1191                 }
1192
1193         if (info) *info = NULL;
1194         return NULL;
1195 }
1196
1197 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1198 {
1199         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1200                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1201
1202         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1203                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1204 }
1205
1206 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1207 {
1208         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1209                 g_signal_connect(G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1210
1211         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1212                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1213
1214         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1215                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1216 }
1217
1218 /* this is more like a move function
1219  * it moves most data from source to imd
1220  */
1221 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1222 {
1223         if (imd == source) return;
1224
1225         imd->unknown = source->unknown;
1226
1227         imd->collection = source->collection;
1228         imd->collection_info = source->collection_info;
1229
1230         image_loader_free(imd->il);
1231         imd->il = NULL;
1232
1233         image_set_fd(imd, image_get_fd(source));
1234
1235
1236         if (source->il)
1237                 {
1238                 imd->il = source->il;
1239                 source->il = NULL;
1240
1241                 image_loader_sync_data(imd->il, source, imd);
1242
1243                 imd->delay_alter_type = source->delay_alter_type;
1244                 source->delay_alter_type = ALTER_NONE;
1245                 }
1246
1247         imd->color_profile_enable = source->color_profile_enable;
1248         imd->color_profile_input = source->color_profile_input;
1249         imd->color_profile_use_image = source->color_profile_use_image;
1250         color_man_free((ColorMan *)imd->cm);
1251         imd->cm = NULL;
1252         if (source->cm)
1253                 {
1254                 ColorMan *cm;
1255
1256                 imd->cm = source->cm;
1257                 source->cm = NULL;
1258
1259                 cm = (ColorMan *)imd->cm;
1260                 cm->imd = imd;
1261                 cm->func_done_data = imd;
1262                 }
1263
1264         image_loader_free(imd->read_ahead_il);
1265         imd->read_ahead_il = source->read_ahead_il;
1266         source->read_ahead_il = NULL;
1267         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1268
1269         file_data_unref(imd->read_ahead_fd);
1270         imd->read_ahead_fd = source->read_ahead_fd;
1271         source->read_ahead_fd = NULL;
1272
1273         imd->completed = source->completed;
1274         imd->state = source->state;
1275         source->state = IMAGE_STATE_NONE;
1276
1277         imd->orientation = source->orientation;
1278         imd->desaturate = source->desaturate;
1279
1280         imd->user_stereo = source->user_stereo;
1281
1282         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1283
1284         if (imd->cm || imd->desaturate)
1285                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1286         else
1287                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1288
1289 }
1290
1291 /* manipulation */
1292
1293 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1294 {
1295         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1296 }
1297
1298 void image_reload(ImageWindow *imd)
1299 {
1300         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1301
1302         image_change_complete(imd, image_zoom_get(imd));
1303 }
1304
1305 void image_scroll(ImageWindow *imd, gint x, gint y)
1306 {
1307         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1308 }
1309
1310 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1311                            gdouble x_align, gdouble y_align)
1312 {
1313         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1314 }
1315
1316 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1317 {
1318         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1319 }
1320
1321 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1322 {
1323         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1324 }
1325
1326 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1327 {
1328         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1329 }
1330
1331 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1332 {
1333         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1334 }
1335
1336 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1337 {
1338         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1339 }
1340
1341 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1342 {
1343         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1344 }
1345
1346 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1347 {
1348         PixbufRenderer *pr;
1349         gdouble zoom;
1350         gint width, height;
1351
1352         pr = (PixbufRenderer *)imd->pr;
1353
1354         if (!pixbuf_renderer_get_pixbuf(pr) ||
1355             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1356
1357         if (vertical)
1358                 {
1359                 zoom = (gdouble)pr->viewport_height / height;
1360                 }
1361         else
1362                 {
1363                 zoom = (gdouble)pr->viewport_width / width;
1364                 }
1365
1366         if (zoom < 1.0)
1367                 {
1368                 zoom = 0.0 - 1.0 / zoom;
1369                 }
1370
1371         pixbuf_renderer_zoom_set(pr, zoom);
1372 }
1373
1374 gdouble image_zoom_get(ImageWindow *imd)
1375 {
1376         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1377 }
1378
1379 gdouble image_zoom_get_real(ImageWindow *imd)
1380 {
1381         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1382 }
1383
1384 gchar *image_zoom_get_as_text(ImageWindow *imd)
1385 {
1386         gdouble zoom;
1387         gdouble scale;
1388         gdouble l = 1.0;
1389         gdouble r = 1.0;
1390         gint pl = 0;
1391         gint pr = 0;
1392         gchar *approx = " ";
1393
1394         zoom = image_zoom_get(imd);
1395         scale = image_zoom_get_real(imd);
1396
1397         if (zoom > 0.0)
1398                 {
1399                 l = zoom;
1400                 }
1401         else if (zoom < 0.0)
1402                 {
1403                 r = 0.0 - zoom;
1404                 }
1405         else if (zoom == 0.0 && scale != 0.0)
1406                 {
1407                 if (scale >= 1.0)
1408                         {
1409                         l = scale;
1410                         }
1411                 else
1412                         {
1413                         r = 1.0 / scale;
1414                         }
1415                 approx = "~";
1416                 }
1417
1418         if (rint(l) != l) pl = 1;
1419         if (rint(r) != r) pr = 1;
1420
1421         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1422 }
1423
1424 gdouble image_zoom_get_default(ImageWindow *imd)
1425 {
1426         gdouble zoom = 1.0;
1427
1428         switch (options->image.zoom_mode)
1429         {
1430         case ZOOM_RESET_ORIGINAL:
1431                 break;
1432         case ZOOM_RESET_FIT_WINDOW:
1433                 zoom = 0.0;
1434                 break;
1435         case ZOOM_RESET_NONE:
1436                 if (imd) zoom = image_zoom_get(imd);
1437                 break;
1438         }
1439
1440         return zoom;
1441 }
1442
1443 /* stereo */
1444 gint image_stereo_get(ImageWindow *imd)
1445 {
1446         return pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1447 }
1448
1449 void image_stereo_set(ImageWindow *imd, gint stereo_mode)
1450 {
1451         DEBUG_1("Setting stereo mode %04x for imd %p", stereo_mode, imd);
1452         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1453 }
1454
1455 void image_stereo_swap(ImageWindow *imd)
1456 {
1457         gint stereo_mode = pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1458         stereo_mode ^= PR_STEREO_SWAP;
1459         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1460 }
1461
1462 StereoPixbufData image_stereo_pixbuf_get(ImageWindow *imd)
1463 {
1464         return imd->user_stereo;
1465 }
1466
1467 void image_stereo_pixbuf_set(ImageWindow *imd, StereoPixbufData stereo_mode)
1468 {
1469         imd->user_stereo = stereo_mode;
1470         image_reload(imd);
1471 }
1472
1473 /* read ahead */
1474
1475 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1476 {
1477         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1478
1479         if (fd)
1480                 {
1481                 if (!file_cache_get(image_get_cache(), fd))
1482                         {
1483                         image_read_ahead_set(imd, fd);
1484                         }
1485                 }
1486         else
1487                 {
1488                 image_read_ahead_cancel(imd);
1489                 }
1490 }
1491
1492 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1493 {
1494         ImageWindow *imd = data;
1495
1496         if (!imd || !image_get_pixbuf(imd) ||
1497             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1498             !imd->image_fd || /* nothing to reload */
1499             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1500             ) return;
1501
1502         if ((type & NOTIFY_REREAD) && fd == imd->image_fd)
1503                 {
1504                 /* there is no need to reload on NOTIFY_CHANGE,
1505                    modified files should be detacted anyway and NOTIFY_REREAD should be recieved
1506                    or they are removed from the filelist completely on "move" and "delete"
1507                 */
1508                 DEBUG_1("Notify image: %s %04x", fd->path, type);
1509                 image_reload(imd);
1510                 }
1511 }
1512
1513 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1514 {
1515         if (!enable && imd->auto_refresh && imd->image_fd)
1516                 file_data_unregister_real_time_monitor(imd->image_fd);
1517
1518         if (enable && !imd->auto_refresh && imd->image_fd)
1519                 file_data_register_real_time_monitor(imd->image_fd);
1520
1521         imd->auto_refresh = enable;
1522 }
1523
1524 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1525 {
1526         imd->top_window_sync = allow_sync;
1527
1528         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1529 }
1530
1531 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1532 {
1533         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1534 }
1535
1536 void image_background_set_color_from_options(ImageWindow *imd, gboolean fullscreen)
1537 {
1538         GdkColor *color = NULL;
1539
1540         if ((options->image.use_custom_border_color && !fullscreen) ||
1541             (options->image.use_custom_border_color_in_fullscreen && fullscreen))
1542                 {
1543                 color = &options->image.border_color;
1544                 }
1545
1546         image_background_set_color(imd, color);
1547 }
1548
1549 void image_color_profile_set(ImageWindow *imd,
1550                              gint input_type,
1551                              gboolean use_image)
1552 {
1553         if (!imd) return;
1554
1555         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
1556                 {
1557                 return;
1558                 }
1559
1560         imd->color_profile_input = input_type;
1561         imd->color_profile_use_image = use_image;
1562 }
1563
1564 gboolean image_color_profile_get(ImageWindow *imd,
1565                                  gint *input_type,
1566                                  gboolean *use_image)
1567 {
1568         if (!imd) return FALSE;
1569
1570         if (input_type) *input_type = imd->color_profile_input;
1571         if (use_image) *use_image = imd->color_profile_use_image;
1572
1573         return TRUE;
1574 }
1575
1576 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1577 {
1578         if (!imd) return;
1579
1580         if (imd->color_profile_enable == enable) return;
1581
1582         imd->color_profile_enable = enable;
1583 }
1584
1585 gboolean image_color_profile_get_use(ImageWindow *imd)
1586 {
1587         if (!imd) return FALSE;
1588
1589         return imd->color_profile_enable;
1590 }
1591
1592 gboolean image_color_profile_get_status(ImageWindow *imd, gchar **image_profile, gchar **screen_profile)
1593 {
1594         ColorMan *cm;
1595         if (!imd) return FALSE;
1596
1597         cm = imd->cm;
1598         if (!cm) return FALSE;
1599         return color_man_get_status(cm, image_profile, screen_profile);
1600
1601 }
1602
1603 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1604 {
1605         if (!imd ||
1606             imd->delay_flip == delay) return;
1607
1608         imd->delay_flip = delay;
1609
1610         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1611
1612         if (!imd->delay_flip && imd->il)
1613                 {
1614                 PixbufRenderer *pr;
1615
1616                 pr = PIXBUF_RENDERER(imd->pr);
1617                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1618                 pr->pixbuf = NULL;
1619
1620                 image_load_pixbuf_ready(imd);
1621                 }
1622 }
1623
1624 void image_to_root_window(ImageWindow *imd, gboolean scaled)
1625 {
1626 #if !GTK_CHECK_VERSION(3,0,0)
1627         GdkScreen *screen;
1628         GdkWindow *rootwindow;
1629         GdkPixmap *pixmap;
1630         GdkPixbuf *pixbuf;
1631         GdkPixbuf *pb;
1632         gint width, height;
1633
1634         if (!imd) return;
1635
1636         pixbuf = image_get_pixbuf(imd);
1637         if (!pixbuf) return;
1638
1639         screen = gtk_widget_get_screen(imd->widget);
1640         rootwindow = gdk_screen_get_root_window(screen);
1641         if (gdk_window_get_visual(rootwindow) != gdk_visual_get_system()) return;
1642
1643         if (scaled)
1644                 {
1645                 width = gdk_screen_width();
1646                 height = gdk_screen_height();
1647                 }
1648         else
1649                 {
1650                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1651                 }
1652
1653         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1654
1655         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1656         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1657         gdk_window_clear(rootwindow);
1658         g_object_unref(pb);
1659         g_object_unref(pixmap);
1660
1661         gdk_flush();
1662 #endif
1663 }
1664
1665 void image_select(ImageWindow *imd, gboolean select)
1666 {
1667         if (!imd->has_frame) return;
1668
1669         if (select)
1670                 {
1671                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1672                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1673                 }
1674         else
1675                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1676 }
1677
1678 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1679 {
1680         if (!imd->has_frame) return;
1681
1682         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1683         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
1684 }
1685
1686 void image_grab_focus(ImageWindow *imd)
1687 {
1688         if (imd->has_frame)
1689                 {
1690                 gtk_widget_grab_focus(imd->frame);
1691                 }
1692         else
1693                 {
1694                 gtk_widget_grab_focus(imd->widget);
1695                 }
1696 }
1697
1698
1699 /*
1700  *-------------------------------------------------------------------
1701  * prefs sync
1702  *-------------------------------------------------------------------
1703  */
1704
1705 static void image_options_set(ImageWindow *imd)
1706 {
1707         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1708                                         "zoom_2pass", options->image.zoom_2pass,
1709                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1710                                         "dither_quality", options->image.dither_quality,
1711                                         "scroll_reset", options->image.scroll_reset_method,
1712                                         "cache_display", options->image.tile_cache_max,
1713                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1714                                         "window_limit", options->image.limit_window_size,
1715                                         "window_limit_value", options->image.max_window_size,
1716                                         "autofit_limit", options->image.limit_autofit_size,
1717                                         "autofit_limit_value", options->image.max_autofit_size,
1718
1719                                         NULL);
1720
1721         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1722
1723         image_stereo_set(imd, options->stereo.mode);
1724         pixbuf_renderer_stereo_fixed_set((PixbufRenderer *)imd->pr,
1725                                         options->stereo.fixed_w, options->stereo.fixed_h,
1726                                         options->stereo.fixed_x1, options->stereo.fixed_y1,
1727                                         options->stereo.fixed_x2, options->stereo.fixed_y2);
1728 }
1729
1730 void image_options_sync(void)
1731 {
1732         GList *work;
1733
1734         work = image_list;
1735         while (work)
1736                 {
1737                 ImageWindow *imd;
1738
1739                 imd = work->data;
1740                 work = work->next;
1741
1742                 image_options_set(imd);
1743                 }
1744 }
1745
1746 /*
1747  *-------------------------------------------------------------------
1748  * init / destroy
1749  *-------------------------------------------------------------------
1750  */
1751
1752 static void image_free(ImageWindow *imd)
1753 {
1754         image_list = g_list_remove(image_list, imd);
1755
1756         if (imd->auto_refresh && imd->image_fd)
1757                 file_data_unregister_real_time_monitor(imd->image_fd);
1758
1759         file_data_unregister_notify_func(image_notify_cb, imd);
1760
1761         image_reset(imd);
1762
1763         image_read_ahead_cancel(imd);
1764
1765         file_data_unref(imd->image_fd);
1766         g_free(imd->title);
1767         g_free(imd->title_right);
1768         g_free(imd);
1769 }
1770
1771 static void image_destroy_cb(GtkWidget *widget, gpointer data)
1772 {
1773         ImageWindow *imd = data;
1774         image_free(imd);
1775 }
1776
1777 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1778 {
1779         GtkAllocation allocation;
1780         gtk_widget_get_allocation(widget, &allocation);
1781 #if !GTK_CHECK_VERSION(3,0,0)
1782         gtk_paint_flat_box(gtk_widget_get_style(widget),
1783                            gtk_widget_get_window(widget),
1784                            gtk_widget_get_state(widget),
1785                            gtk_frame_get_shadow_type(GTK_FRAME(widget)),
1786                            NULL,
1787                            widget,
1788                            NULL,
1789                            allocation.x + 3, allocation.y + 3,
1790                            allocation.width - 6, allocation.height - 6);
1791
1792 #endif
1793         return FALSE;
1794 }
1795
1796
1797 void image_set_frame(ImageWindow *imd, gboolean frame)
1798 {
1799         frame = !!frame;
1800
1801         if (frame == imd->has_frame) return;
1802
1803         gtk_widget_hide(imd->pr);
1804
1805         if (frame)
1806                 {
1807                 imd->frame = gtk_frame_new(NULL);
1808 #if GTK_CHECK_VERSION(2,12,0)
1809                 g_object_ref(imd->pr);
1810 #else
1811                 gtk_widget_ref(imd->pr);
1812 #endif
1813                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1814                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1815
1816 #if GTK_CHECK_VERSION(2,12,0)
1817                 g_object_unref(imd->pr);
1818 #else
1819                 gtk_widget_unref(imd->pr);
1820 #endif
1821                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1822                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1823
1824                 gtk_widget_set_can_focus(imd->frame, TRUE);
1825                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1826                                  G_CALLBACK(image_focus_in_cb), imd);
1827                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1828                                  G_CALLBACK(image_focus_out_cb), imd);
1829
1830                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1831                                        G_CALLBACK(image_focus_expose), imd);
1832
1833 #if GTK_CHECK_VERSION(2,14,0)
1834                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1835 #else
1836                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1837 #endif
1838                 gtk_widget_show(imd->frame);
1839                 }
1840         else
1841                 {
1842 #if GTK_CHECK_VERSION(2,12,0)
1843                 g_object_ref(imd->pr);
1844 #else
1845                 gtk_widget_ref(imd->pr);
1846 #endif
1847                 if (imd->frame)
1848                         {
1849                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1850                         gtk_widget_destroy(imd->frame);
1851                         imd->frame = NULL;
1852                         }
1853 #if GTK_CHECK_VERSION(2,14,0)
1854                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1855 #else
1856                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1857 #endif
1858
1859 #if GTK_CHECK_VERSION(2,12,0)
1860                 g_object_unref(imd->pr);
1861 #else
1862                 gtk_widget_unref(imd->pr);
1863 #endif
1864                 }
1865
1866         gtk_widget_show(imd->pr);
1867
1868         imd->has_frame = frame;
1869 }
1870
1871 ImageWindow *image_new(gboolean frame)
1872 {
1873         ImageWindow *imd;
1874
1875         imd = g_new0(ImageWindow, 1);
1876
1877         imd->unknown = TRUE;
1878         imd->has_frame = -1; /* not initialized; for image_set_frame */
1879         imd->delay_alter_type = ALTER_NONE;
1880         imd->state = IMAGE_STATE_NONE;
1881         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1882         imd->orientation = 1;
1883
1884         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1885
1886         image_options_set(imd);
1887
1888         imd->widget = gtk_vbox_new(0, 0);
1889
1890         image_set_frame(imd, frame);
1891
1892         image_set_selectable(imd, 0);
1893
1894         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1895                          G_CALLBACK(image_click_cb), imd);
1896         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1897                          G_CALLBACK(image_scroll_notify_cb), imd);
1898
1899         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1900                          G_CALLBACK(image_scroll_cb), imd);
1901
1902         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1903                          G_CALLBACK(image_destroy_cb), imd);
1904
1905         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1906                          G_CALLBACK(image_zoom_cb), imd);
1907         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1908                          G_CALLBACK(image_render_complete_cb), imd);
1909         g_signal_connect(G_OBJECT(imd->pr), "drag",
1910                          G_CALLBACK(image_drag_cb), imd);
1911
1912         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1913
1914         image_list = g_list_append(image_list, imd);
1915
1916         return imd;
1917 }
1918 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */