src/image.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2009 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 static void image_zoom_cb(PixbufRenderer *pr, gdouble zoom, gpointer data)
  95 {
  96         ImageWindow *imd = data;
  97
  98         if (imd->title_show_zoom) image_update_title(imd);
  99         if (imd->overlay_show_zoom) image_osd_update(imd);
 100
 101         image_update_util(imd);
 102 }
 103
 104 static void image_complete_util(ImageWindow *imd, gint preload)
 105 {
 106         if (imd->il && image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il)) return;
 107
 108         DEBUG_1("%s image load completed \"%s\" (%s)", get_exec_time(),
 109                           (preload) ? (imd->read_ahead_fd ? imd->read_ahead_fd->path : "null") :
 110                                       (imd->image_fd ? imd->image_fd->path : "null"),
 111                           (preload) ? "preload" : "current");
 112
 113         if (!preload) imd->completed = TRUE;
 114         if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
 115 }
 116
 117 static void image_render_complete_cb(PixbufRenderer *pr, gpointer data)
 118 {
 119         ImageWindow *imd = data;
 120
 121         image_complete_util(imd, FALSE);
 122 }
 123
 124 static void image_state_set(ImageWindow *imd, ImageState state)
 125 {
 126         if (state == IMAGE_STATE_NONE)
 127                 {
 128                 imd->state = state;
 129                 }
 130         else
 131                 {
 132                 imd->state |= state;
 133                 }
 134         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 135 }
 136
 137 static void image_state_unset(ImageWindow *imd, ImageState state)
 138 {
 139         imd->state &= ~state;
 140         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 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
 192 static gint image_post_process_color(ImageWindow *imd, gint start_row, gint run_in_bg)
 193 {
 194         ColorMan *cm;
 195         ColorManProfileType input_type;
 196         ColorManProfileType screen_type;
 197         const gchar *input_file;
 198         const gchar *screen_file;
 199         guchar *profile = NULL;
 200         guint profile_len;
 201
 202         if (imd->cm) return FALSE;
 203
 204         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
 205             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
 206                 {
 207                 const gchar *file = options->color_profile.input_file[imd->color_profile_input - COLOR_PROFILE_FILE];
 208
 209                 if (!access_file(file, R_OK)) return FALSE;
 210
 211                 input_type = COLOR_PROFILE_FILE;
 212                 input_file = file;
 213                 }
 214         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
 215                  imd->color_profile_input <  COLOR_PROFILE_FILE)
 216                 {
 217                 input_type = imd->color_profile_input;
 218                 input_file = NULL;
 219                 }
 220         else
 221                 {
 222                 return FALSE;
 223                 }
 224
 225         if (imd->color_profile_screen == 1 &&
 226             access_file(options->color_profile.screen_file, R_OK))
 227                 {
 228                 screen_type = COLOR_PROFILE_FILE;
 229                 screen_file = options->color_profile.screen_file;
 230                 }
 231         else if (imd->color_profile_screen == 0)
 232                 {
 233                 screen_type = COLOR_PROFILE_SRGB;
 234                 screen_file = NULL;
 235                 }
 236         else
 237                 {
 238                 return FALSE;
 239                 }
 240         imd->color_profile_from_image = COLOR_PROFILE_NONE;
 241
 242         if (imd->color_profile_use_image)
 243                 {
 244                 ExifData *exif = exif_read_fd(imd->image_fd);
 245
 246                 if (exif)
 247                         {
 248                         profile = exif_get_color_profile(exif, &profile_len);
 249                         if (!profile)
 250                                 {
 251                                 gint cs;
 252                                 gchar *interop_index;
 253
 254                                 /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
 255                                 if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
 256                                 interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
 257
 258                                 if (cs == 1)
 259                                         {
 260                                         input_type = COLOR_PROFILE_SRGB;
 261                                         input_file = NULL;
 262                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 263
 264                                         DEBUG_1("Found EXIF ColorSpace of sRGB");
 265                                         }
 266                                 if (cs == 2 || (interop_index && !strcmp(interop_index, "R03")))
 267                                         {
 268                                         input_type = COLOR_PROFILE_ADOBERGB;
 269                                         input_file = NULL;
 270                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 271
 272                                         DEBUG_1("Found EXIF ColorSpace of AdobeRGB");
 273                                         }
 274
 275                                 g_free(interop_index);
 276                                 }
 277                         else
 278                                 {
 279                                 DEBUG_1("Found embedded color profile");
 280                                 imd->color_profile_from_image = COLOR_PROFILE_MEM;
 281                                 }
 282
 283                         exif_free_fd(imd->image_fd, exif);
 284                         }
 285                 }
 286
 287         if (profile)
 288                 {
 289                 cm = color_man_new_embedded(run_in_bg ? imd : NULL, NULL,
 290                                             profile, profile_len,
 291                                             screen_type, screen_file);
 292                 g_free(profile);
 293                 }
 294         else
 295                 {
 296                 cm = color_man_new(run_in_bg ? imd : NULL, NULL,
 297                                    input_type, input_file,
 298                                    screen_type, screen_file);
 299                 }
 300
 301         if (cm)
 302                 {
 303                 if (start_row > 0)
 304                         {
 305                         cm->row = start_row;
 306                         cm->incremental_sync = TRUE;
 307                         }
 308
 309                 imd->cm = (gpointer)cm;
 310 #if 0
 311                 if (run_in_bg) color_man_start_bg(imd->cm, image_post_process_color_cb, imd);
 312 #endif
 313                 return TRUE;
 314                 }
 315
 316         return FALSE;
 317 }
 318
 319
 320 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 321 {
 322         ImageWindow *imd = (ImageWindow *)data;
 323         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
 324         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 325
 326 }
 327
 328 void image_alter(ImageWindow *imd, AlterType type)
 329 {
 330         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 331         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 332         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 333         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 334         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 335
 336
 337         if (!imd || !imd->pr || !imd->image_fd) return;
 338
 339         if (imd->orientation < 1 || imd->orientation > 8) imd->orientation = 1;
 340
 341         switch (type)
 342                 {
 343                 case ALTER_ROTATE_90:
 344                         imd->orientation = rotate_90[imd->orientation];
 345                         break;
 346                 case ALTER_ROTATE_90_CC:
 347                         imd->orientation = rotate_90_cc[imd->orientation];
 348                         break;
 349                 case ALTER_ROTATE_180:
 350                         imd->orientation = rotate_180[imd->orientation];
 351                         break;
 352                 case ALTER_MIRROR:
 353                         imd->orientation = mirror[imd->orientation];
 354                         break;
 355                 case ALTER_FLIP:
 356                         imd->orientation = flip[imd->orientation];
 357                         break;
 358                 case ALTER_DESATURATE:
 359                         imd->desaturate = !imd->desaturate;
 360                         break;
 361                 case ALTER_NONE:
 362                         imd->orientation = imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1;
 363                         imd->desaturate = FALSE;
 364                         break;
 365                 default:
 366                         return;
 367                         break;
 368                 }
 369
 370         if (type != ALTER_NONE && type != ALTER_DESATURATE)
 371                 {
 372                 if (imd->image_fd->user_orientation == 0) file_data_ref(imd->image_fd);
 373                 imd->image_fd->user_orientation = imd->orientation;
 374                 }
 375         else
 376                 {
 377                 if (imd->image_fd->user_orientation != 0) file_data_unref(imd->image_fd);
 378                 imd->image_fd->user_orientation = 0;
 379                 }
 380
 381         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 382         if (imd->cm || imd->desaturate)
 383                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 384         else
 385                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 386 }
 387
 388
 389 /*
 390  *-------------------------------------------------------------------
 391  * read ahead (prebuffer)
 392  *-------------------------------------------------------------------
 393  */
 394
 395 static void image_read_ahead_cancel(ImageWindow *imd)
 396 {
 397         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 398
 399         image_loader_free(imd->read_ahead_il);
 400         imd->read_ahead_il = NULL;
 401
 402         file_data_unref(imd->read_ahead_fd);
 403         imd->read_ahead_fd = NULL;
 404 }
 405
 406 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 407 {
 408         ImageWindow *imd = data;
 409
 410         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 411
 412         if (!imd->read_ahead_fd->pixbuf)
 413                 {
 414                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 415                 if (imd->read_ahead_fd->pixbuf)
 416                         {
 417                         g_object_ref(imd->read_ahead_fd->pixbuf);
 418                         image_cache_set(imd, imd->read_ahead_fd);
 419                         }
 420                 }
 421         image_loader_free(imd->read_ahead_il);
 422         imd->read_ahead_il = NULL;
 423
 424         image_complete_util(imd, TRUE);
 425 }
 426
 427 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 428 {
 429         /* we even treat errors as success, maybe at least some of the file was ok */
 430         image_read_ahead_done_cb(il, data);
 431 }
 432
 433 static void image_read_ahead_start(ImageWindow *imd)
 434 {
 435         /* already started ? */
 436         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 437
 438         /* still loading ?, do later */
 439         if (imd->il /*|| imd->cm*/) return;
 440
 441         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 442
 443         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 444
 445         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 446
 447         g_signal_connect(G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 448         g_signal_connect(G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 449
 450         if (!image_loader_start(imd->read_ahead_il))
 451                 {
 452                 image_read_ahead_cancel(imd);
 453                 image_complete_util(imd, TRUE);
 454                 }
 455 }
 456
 457 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 458 {
 459         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 460
 461         image_read_ahead_cancel(imd);
 462
 463         imd->read_ahead_fd = file_data_ref(fd);
 464
 465         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 466
 467         image_read_ahead_start(imd);
 468 }
 469
 470 /*
 471  *-------------------------------------------------------------------
 472  * post buffering
 473  *-------------------------------------------------------------------
 474  */
 475
 476 static void image_cache_release_cb(FileData *fd)
 477 {
 478         g_object_unref(fd->pixbuf);
 479         fd->pixbuf = NULL;
 480 }
 481
 482 static FileCacheData *image_get_cache(void)
 483 {
 484         static FileCacheData *cache = NULL;
 485         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 486         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 487         return cache;
 488 }
 489
 490 static void image_cache_set(ImageWindow *imd, FileData *fd)
 491 {
 492         g_assert(fd->pixbuf);
 493
 494         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 495         file_data_send_notification(fd, NOTIFY_TYPE_INTERNAL); /* to update histogram */
 496 }
 497
 498 static gint image_cache_get(ImageWindow *imd)
 499 {
 500         gint success;
 501
 502         success = file_cache_get(image_get_cache(), imd->image_fd);
 503         if (success)
 504                 {
 505                 g_assert(imd->image_fd->pixbuf);
 506                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 507                 }
 508
 509         file_cache_dump(image_get_cache());
 510         return success;
 511 }
 512
 513 /*
 514  *-------------------------------------------------------------------
 515  * loading
 516  *-------------------------------------------------------------------
 517  */
 518
 519 static void image_load_pixbuf_ready(ImageWindow *imd)
 520 {
 521         if (image_get_pixbuf(imd) || !imd->il) return;
 522
 523         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 524 }
 525
 526 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 527 {
 528         ImageWindow *imd = data;
 529         PixbufRenderer *pr;
 530
 531         pr = (PixbufRenderer *)imd->pr;
 532
 533         if (imd->delay_flip &&
 534             pr->pixbuf != image_loader_get_pixbuf(il))
 535                 {
 536                 return;
 537                 }
 538
 539         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 540
 541         pixbuf_renderer_area_changed(pr, x, y, w, h);
 542 }
 543
 544 static void image_load_done_cb(ImageLoader *il, gpointer data)
 545 {
 546         ImageWindow *imd = data;
 547
 548         DEBUG_1("%s image done", get_exec_time());
 549
 550         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 551                 {
 552                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
 553                 image_cache_set(imd, imd->image_fd);
 554                 }
 555         /* call the callback triggered by image_state after fd->pixbuf is set */
 556         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 557         image_state_unset(imd, IMAGE_STATE_LOADING);
 558
 559         if (!image_loader_get_pixbuf(imd->il))
 560                 {
 561                 GdkPixbuf *pixbuf;
 562
 563                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 564                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 565                 g_object_unref(pixbuf);
 566
 567                 imd->unknown = TRUE;
 568                 }
 569         else if (imd->delay_flip &&
 570             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 571                 {
 572                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 573                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 574                 }
 575
 576         image_loader_free(imd->il);
 577         imd->il = NULL;
 578
 579 //      image_post_process(imd, TRUE);
 580
 581         image_read_ahead_start(imd);
 582 }
 583
 584 static void image_load_error_cb(ImageLoader *il, gpointer data)
 585 {
 586         DEBUG_1("%s image error", get_exec_time());
 587
 588         /* even on error handle it like it was done,
 589          * since we have a pixbuf with _something_ */
 590
 591         image_load_done_cb(il, data);
 592 }
 593
 594 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
 595 {
 596         g_assert(imd->il);
 597         if (override_old_signals)
 598                 {
 599                 /* override the old signals */
 600                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 601                 }
 602
 603         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 604         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 605         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 606 }
 607
 608 /* this read ahead is located here merely for the callbacks, above */
 609
 610 static gint image_read_ahead_check(ImageWindow *imd)
 611 {
 612         if (!imd->read_ahead_fd) return FALSE;
 613         if (imd->il) return FALSE;
 614
 615         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 616                 {
 617                 image_read_ahead_cancel(imd);
 618                 return FALSE;
 619                 }
 620
 621         if (imd->read_ahead_il)
 622                 {
 623                 imd->il = imd->read_ahead_il;
 624                 imd->read_ahead_il = NULL;
 625
 626                 image_load_set_signals(imd, TRUE);
 627
 628                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 629                 image_state_set(imd, IMAGE_STATE_LOADING);
 630
 631                 if (!imd->delay_flip)
 632                         {
 633                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 634                         }
 635
 636                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 637
 638                 file_data_unref(imd->read_ahead_fd);
 639                 imd->read_ahead_fd = NULL;
 640                 return TRUE;
 641                 }
 642         else if (imd->read_ahead_fd->pixbuf)
 643                 {
 644                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
 645
 646                 file_data_unref(imd->read_ahead_fd);
 647                 imd->read_ahead_fd = NULL;
 648
 649 //              image_post_process(imd, FALSE);
 650                 return TRUE;
 651                 }
 652
 653         image_read_ahead_cancel(imd);
 654         return FALSE;
 655 }
 656
 657 static gint image_load_begin(ImageWindow *imd, FileData *fd)
 658 {
 659         DEBUG_1("%s image begin", get_exec_time());
 660
 661         if (imd->il) return FALSE;
 662
 663         imd->completed = FALSE;
 664         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 665
 666         if (image_cache_get(imd))
 667                 {
 668                 DEBUG_1("from cache: %s", imd->image_fd->path);
 669                 return TRUE;
 670                 }
 671
 672         if (image_read_ahead_check(imd))
 673                 {
 674                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 675                 return TRUE;
 676                 }
 677
 678         if (!imd->delay_flip && image_get_pixbuf(imd))
 679                 {
 680                 PixbufRenderer *pr;
 681
 682                 pr = PIXBUF_RENDERER(imd->pr);
 683                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 684                 pr->pixbuf = NULL;
 685                 }
 686
 687         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 688
 689         imd->il = image_loader_new(fd);
 690
 691         image_load_set_signals(imd, FALSE);
 692
 693         if (!image_loader_start(imd->il))
 694                 {
 695                 DEBUG_1("image start error");
 696
 697                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 698
 699                 image_loader_free(imd->il);
 700                 imd->il = NULL;
 701
 702                 image_complete_util(imd, FALSE);
 703
 704                 return FALSE;
 705                 }
 706
 707         image_state_set(imd, IMAGE_STATE_LOADING);
 708
 709 /*
 710         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
 711                 {
 712                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 713                 }
 714 */
 715         return TRUE;
 716 }
 717
 718 static void image_reset(ImageWindow *imd)
 719 {
 720         /* stops anything currently being done */
 721
 722         DEBUG_1("%s image reset", get_exec_time());
 723
 724         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 725
 726         image_loader_free(imd->il);
 727         imd->il = NULL;
 728
 729         color_man_free((ColorMan *)imd->cm);
 730         imd->cm = NULL;
 731
 732         imd->delay_alter_type = ALTER_NONE;
 733
 734         image_state_set(imd, IMAGE_STATE_NONE);
 735 }
 736
 737 /*
 738  *-------------------------------------------------------------------
 739  * image changer
 740  *-------------------------------------------------------------------
 741  */
 742
 743 static void image_change_complete(ImageWindow *imd, gdouble zoom, gint new)
 744 {
 745         image_reset(imd);
 746         imd->unknown = TRUE;
 747
 748         if (!imd->image_fd)
 749                 {
 750                 image_change_pixbuf(imd, NULL, zoom, FALSE);
 751                 }
 752         else
 753                 {
 754
 755                 if (isfile(imd->image_fd->path))
 756                         {
 757                         PixbufRenderer *pr;
 758
 759                         pr = PIXBUF_RENDERER(imd->pr);
 760                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
 761
 762                         if (image_load_begin(imd, imd->image_fd))
 763                                 {
 764                                 imd->unknown = FALSE;
 765                                 }
 766                         }
 767
 768                 if (imd->unknown == TRUE)
 769                         {
 770                         GdkPixbuf *pixbuf;
 771
 772                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 773                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 774                         g_object_unref(pixbuf);
 775                         }
 776                 }
 777
 778         image_update_util(imd);
 779 }
 780
 781 static void image_change_real(ImageWindow *imd, FileData *fd,
 782                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 783 {
 784
 785         imd->collection = cd;
 786         imd->collection_info = info;
 787
 788         if (imd->auto_refresh && imd->image_fd)
 789                 file_data_unregister_real_time_monitor(imd->image_fd);
 790
 791         file_data_unref(imd->image_fd);
 792         imd->image_fd = file_data_ref(fd);
 793
 794
 795         image_change_complete(imd, zoom, TRUE);
 796
 797         image_update_title(imd);
 798         image_state_set(imd, IMAGE_STATE_IMAGE);
 799
 800         if (imd->auto_refresh && imd->image_fd)
 801                 file_data_register_real_time_monitor(imd->image_fd);
 802 }
 803
 804 /*
 805  *-------------------------------------------------------------------
 806  * focus stuff
 807  *-------------------------------------------------------------------
 808  */
 809
 810 static void image_focus_paint(ImageWindow *imd, gint has_focus, GdkRectangle *area)
 811 {
 812         GtkWidget *widget;
 813
 814         widget = imd->widget;
 815         if (!widget->window) return;
 816
 817         if (has_focus)
 818                 {
 819                 gtk_paint_focus(widget->style, widget->window, GTK_STATE_ACTIVE,
 820                                 area, widget, "image_window",
 821                                 widget->allocation.x, widget->allocation.y,
 822                                 widget->allocation.width - 1, widget->allocation.height - 1);
 823                 }
 824         else
 825                 {
 826                 gtk_paint_shadow(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
 827                                  area, widget, "image_window",
 828                                  widget->allocation.x, widget->allocation.y,
 829                                  widget->allocation.width - 1, widget->allocation.height - 1);
 830                 }
 831 }
 832
 833 static gint image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 834 {
 835         ImageWindow *imd = data;
 836
 837         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 838         return TRUE;
 839 }
 840
 841 static gint image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 842 {
 843         ImageWindow *imd = data;
 844
 845         GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 846         image_focus_paint(imd, TRUE, NULL);
 847
 848         return TRUE;
 849 }
 850
 851 static gint image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 852 {
 853         ImageWindow *imd = data;
 854
 855         GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 856         image_focus_paint(imd, FALSE, NULL);
 857
 858         return TRUE;
 859 }
 860
 861 static gint image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 862 {
 863         ImageWindow *imd = data;
 864
 865         if (imd->func_scroll &&
 866             event && event->type == GDK_SCROLL)
 867                 {
 868                 imd->func_scroll(imd, event, imd->data_scroll);
 869                 return TRUE;
 870                 }
 871
 872         return FALSE;
 873 }
 874
 875 /*
 876  *-------------------------------------------------------------------
 877  * public interface
 878  *-------------------------------------------------------------------
 879  */
 880
 881 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 882                          const gchar *title, const gchar *title_right, gint show_zoom)
 883 {
 884         imd->top_window = window;
 885         g_free(imd->title);
 886         imd->title = g_strdup(title);
 887         g_free(imd->title_right);
 888         imd->title_right = g_strdup(title_right);
 889         imd->title_show_zoom = show_zoom;
 890
 891         if (!options->image.fit_window_to_image) window = NULL;
 892
 893         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 894
 895         image_update_title(imd);
 896 }
 897
 898 void image_set_update_func(ImageWindow *imd,
 899                            void (*func)(ImageWindow *imd, gpointer data),
 900                            gpointer data)
 901 {
 902         imd->func_update = func;
 903         imd->data_update = data;
 904 }
 905
 906 void image_set_complete_func(ImageWindow *imd,
 907                              void (*func)(ImageWindow *imd, gint preload, gpointer data),
 908                              gpointer data)
 909 {
 910         imd->func_complete = func;
 911         imd->data_complete = data;
 912 }
 913
 914 void image_set_state_func(ImageWindow *imd,
 915                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 916                         gpointer data)
 917 {
 918         imd->func_state = func;
 919         imd->data_state = data;
 920 }
 921
 922
 923 void image_set_button_func(ImageWindow *imd,
 924                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
 925                            gpointer data)
 926 {
 927         imd->func_button = func;
 928         imd->data_button = data;
 929 }
 930
 931 void image_set_drag_func(ImageWindow *imd,
 932                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
 933                            gpointer data)
 934 {
 935         imd->func_drag = func;
 936         imd->data_drag = data;
 937 }
 938
 939 void image_set_scroll_func(ImageWindow *imd,
 940                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
 941                            gpointer data)
 942 {
 943         imd->func_scroll = func;
 944         imd->data_scroll = data;
 945 }
 946
 947 void image_set_scroll_notify_func(ImageWindow *imd,
 948                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
 949                                   gpointer data)
 950 {
 951         imd->func_scroll_notify = func;
 952         imd->data_scroll_notify = data;
 953 }
 954
 955 /* path, name */
 956
 957 const gchar *image_get_path(ImageWindow *imd)
 958 {
 959         if (imd->image_fd == NULL) return NULL;
 960         return imd->image_fd->path;
 961 }
 962
 963 const gchar *image_get_name(ImageWindow *imd)
 964 {
 965         if (imd->image_fd == NULL) return NULL;
 966         return imd->image_fd->name;
 967 }
 968
 969 FileData *image_get_fd(ImageWindow *imd)
 970 {
 971         return imd->image_fd;
 972 }
 973
 974 /* merely changes path string, does not change the image! */
 975 void image_set_fd(ImageWindow *imd, FileData *fd)
 976 {
 977         if (imd->auto_refresh && imd->image_fd)
 978                 file_data_unregister_real_time_monitor(imd->image_fd);
 979
 980         file_data_unref(imd->image_fd);
 981         imd->image_fd = file_data_ref(fd);
 982
 983         image_update_title(imd);
 984         image_state_set(imd, IMAGE_STATE_IMAGE);
 985
 986         if (imd->auto_refresh && imd->image_fd)
 987                 file_data_register_real_time_monitor(imd->image_fd);
 988 }
 989
 990 /* load a new image */
 991
 992 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
 993 {
 994         if (imd->image_fd == fd) return;
 995
 996         image_change_real(imd, fd, NULL, NULL, zoom);
 997 }
 998
 999 gint image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1000 {
1001         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1002 }
1003
1004 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1005 {
1006         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1007 }
1008
1009 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gint lazy)
1010 {
1011
1012
1013         /* read_exif and similar functions can actually notice that the file has changed and triger a notification
1014         that removes the pixbuf from cache and unref it. Therefore we must ref it here before it is taken over by the renderer. */
1015         if (pixbuf) g_object_ref(pixbuf);
1016
1017         if (imd->image_fd)
1018                 {
1019                 if (imd->image_fd->user_orientation)
1020                         {
1021                         imd->orientation = imd->image_fd->user_orientation;
1022                         }
1023                 else if (options->image.exif_rotate_enable)
1024                         {
1025                         imd->orientation = metadata_read_int(imd->image_fd, "Exif.Image.Orientation", EXIF_ORIENTATION_TOP_LEFT);
1026                         imd->image_fd->exif_orientation = imd->orientation;
1027                         }
1028                 }
1029
1030         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1031         if (imd->cm)
1032                 {
1033                 color_man_free(imd->cm);
1034                 imd->cm = NULL;
1035                 }
1036
1037         if (lazy)
1038                 {
1039                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation);
1040                 }
1041         else
1042                 {
1043                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1044                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1045                 }
1046
1047         if (pixbuf) g_object_unref(pixbuf);
1048
1049         if (imd->color_profile_enable)
1050                 {
1051                 image_post_process_color(imd, 0, FALSE); /* TODO: error handling */
1052                 }
1053
1054         if (imd->cm || imd->desaturate)
1055                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1056
1057         image_state_set(imd, IMAGE_STATE_IMAGE);
1058 }
1059
1060 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1061 {
1062         if (!cd || !info || !g_list_find(cd->list, info)) return;
1063
1064         image_change_real(imd, info->fd, cd, info, zoom);
1065 }
1066
1067 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1068 {
1069         if (collection_to_number(imd->collection) >= 0)
1070                 {
1071                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1072                         {
1073                         if (info) *info = imd->collection_info;
1074                         }
1075                 else
1076                         {
1077                         if (info) *info = NULL;
1078                         }
1079                 return imd->collection;
1080                 }
1081
1082         if (info) *info = NULL;
1083         return NULL;
1084 }
1085
1086 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1087 {
1088         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1089                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1090
1091         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1092                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1093 }
1094
1095 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1096 {
1097         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1098                 g_signal_connect(G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1099
1100         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1101                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1102
1103         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1104                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1105 }
1106
1107 /* this is more like a move function
1108  * it moves most data from source to imd
1109  */
1110 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1111 {
1112         if (imd == source) return;
1113
1114         imd->unknown = source->unknown;
1115
1116         imd->collection = source->collection;
1117         imd->collection_info = source->collection_info;
1118
1119         image_loader_free(imd->il);
1120         imd->il = NULL;
1121
1122         image_set_fd(imd, image_get_fd(source));
1123
1124
1125         if (source->il)
1126                 {
1127                 imd->il = source->il;
1128                 source->il = NULL;
1129
1130                 image_loader_sync_data(imd->il, source, imd);
1131
1132                 imd->delay_alter_type = source->delay_alter_type;
1133                 source->delay_alter_type = ALTER_NONE;
1134                 }
1135
1136         imd->color_profile_enable = source->color_profile_enable;
1137         imd->color_profile_input = source->color_profile_input;
1138         imd->color_profile_screen = source->color_profile_screen;
1139         imd->color_profile_use_image = source->color_profile_use_image;
1140         color_man_free((ColorMan *)imd->cm);
1141         imd->cm = NULL;
1142         if (source->cm)
1143                 {
1144                 ColorMan *cm;
1145
1146                 imd->cm = source->cm;
1147                 source->cm = NULL;
1148
1149                 cm = (ColorMan *)imd->cm;
1150                 cm->imd = imd;
1151                 cm->func_done_data = imd;
1152                 }
1153
1154         image_loader_free(imd->read_ahead_il);
1155         imd->read_ahead_il = source->read_ahead_il;
1156         source->read_ahead_il = NULL;
1157         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1158
1159         file_data_unref(imd->read_ahead_fd);
1160         imd->read_ahead_fd = source->read_ahead_fd;
1161         source->read_ahead_fd = NULL;
1162
1163         imd->completed = source->completed;
1164         imd->state = source->state;
1165         source->state = IMAGE_STATE_NONE;
1166
1167         imd->orientation = source->orientation;
1168         imd->desaturate = source->desaturate;
1169
1170         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1171
1172         if (imd->cm || imd->desaturate)
1173                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1174         else
1175                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1176
1177 }
1178
1179 /* manipulation */
1180
1181 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1182 {
1183         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1184 }
1185
1186 void image_reload(ImageWindow *imd)
1187 {
1188         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1189
1190         image_change_complete(imd, image_zoom_get(imd), FALSE);
1191 }
1192
1193 void image_scroll(ImageWindow *imd, gint x, gint y)
1194 {
1195         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1196 }
1197
1198 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1199                            gdouble x_align, gdouble y_align)
1200 {
1201         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1202 }
1203
1204 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1205 {
1206         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1207 }
1208
1209 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1210 {
1211         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1212 }
1213
1214 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1215 {
1216         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1217 }
1218
1219 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1220 {
1221         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1222 }
1223
1224 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1225 {
1226         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1227 }
1228
1229 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1230 {
1231         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1232 }
1233
1234 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1235 {
1236         PixbufRenderer *pr;
1237         gdouble zoom;
1238         gint width, height;
1239
1240         pr = (PixbufRenderer *)imd->pr;
1241
1242         if (!pixbuf_renderer_get_pixbuf(pr) ||
1243             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1244
1245         if (vertical)
1246                 {
1247                 zoom = (gdouble)pr->window_height / height;
1248                 }
1249         else
1250                 {
1251                 zoom = (gdouble)pr->window_width / width;
1252                 }
1253
1254         if (zoom < 1.0)
1255                 {
1256                 zoom = 0.0 - 1.0 / zoom;
1257                 }
1258
1259         pixbuf_renderer_zoom_set(pr, zoom);
1260 }
1261
1262 gdouble image_zoom_get(ImageWindow *imd)
1263 {
1264         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1265 }
1266
1267 gdouble image_zoom_get_real(ImageWindow *imd)
1268 {
1269         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1270 }
1271
1272 gchar *image_zoom_get_as_text(ImageWindow *imd)
1273 {
1274         gdouble zoom;
1275         gdouble scale;
1276         gdouble l = 1.0;
1277         gdouble r = 1.0;
1278         gint pl = 0;
1279         gint pr = 0;
1280         gchar *approx = " ";
1281
1282         zoom = image_zoom_get(imd);
1283         scale = image_zoom_get_real(imd);
1284
1285         if (zoom > 0.0)
1286                 {
1287                 l = zoom;
1288                 }
1289         else if (zoom < 0.0)
1290                 {
1291                 r = 0.0 - zoom;
1292                 }
1293         else if (zoom == 0.0 && scale != 0.0)
1294                 {
1295                 if (scale >= 1.0)
1296                         {
1297                         l = scale;
1298                         }
1299                 else
1300                         {
1301                         r = 1.0 / scale;
1302                         }
1303                 approx = "~";
1304                 }
1305
1306         if (rint(l) != l) pl = 1;
1307         if (rint(r) != r) pr = 1;
1308
1309         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1310 }
1311
1312 gdouble image_zoom_get_default(ImageWindow *imd)
1313 {
1314         gdouble zoom = 1.0;
1315
1316         switch (options->image.zoom_mode)
1317         {
1318         case ZOOM_RESET_ORIGINAL:
1319                 break;
1320         case ZOOM_RESET_FIT_WINDOW:
1321                 zoom = 0.0;
1322                 break;
1323         case ZOOM_RESET_NONE:
1324                 if (imd) zoom = image_zoom_get(imd);
1325                 break;
1326         }
1327
1328         return zoom;
1329 }
1330
1331 /* read ahead */
1332
1333 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1334 {
1335         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1336
1337         if (fd)
1338                 {
1339                 if (!file_cache_get(image_get_cache(), fd))
1340                         {
1341                         image_read_ahead_set(imd, fd);
1342                         }
1343                 }
1344         else
1345                 {
1346                 image_read_ahead_cancel(imd);
1347                 }
1348 }
1349
1350 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1351 {
1352         ImageWindow *imd = data;
1353
1354         if (!imd || !image_get_pixbuf(imd) ||
1355             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1356             !imd->image_fd || /* nothing to reload */
1357             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1358             ) return;
1359
1360         if (type == NOTIFY_TYPE_REREAD && fd == imd->image_fd)
1361                 {
1362                 image_reload(imd);
1363                 }
1364 }
1365
1366 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1367 {
1368         if (!enable && imd->auto_refresh && imd->image_fd)
1369                 file_data_unregister_real_time_monitor(imd->image_fd);
1370
1371         if (enable && !imd->auto_refresh && imd->image_fd)
1372                 file_data_register_real_time_monitor(imd->image_fd);
1373
1374         imd->auto_refresh = enable;
1375 }
1376
1377 void image_top_window_set_sync(ImageWindow *imd, gint allow_sync)
1378 {
1379         imd->top_window_sync = allow_sync;
1380
1381         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1382 }
1383
1384 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1385 {
1386         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1387 }
1388
1389 void image_color_profile_set(ImageWindow *imd,
1390                              gint input_type, gint screen_type,
1391                              gint use_image)
1392 {
1393         if (!imd) return;
1394
1395         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS ||
1396             screen_type < 0 || screen_type > 1)
1397                 {
1398                 return;
1399                 }
1400
1401         imd->color_profile_input = input_type;
1402         imd->color_profile_screen = screen_type;
1403         imd->color_profile_use_image = use_image;
1404 }
1405
1406 gint image_color_profile_get(ImageWindow *imd,
1407                              gint *input_type, gint *screen_type,
1408                              gint *use_image)
1409 {
1410         if (!imd) return FALSE;
1411
1412         if (input_type) *input_type = imd->color_profile_input;
1413         if (screen_type) *screen_type = imd->color_profile_screen;
1414         if (use_image) *use_image = imd->color_profile_use_image;
1415
1416         return TRUE;
1417 }
1418
1419 void image_color_profile_set_use(ImageWindow *imd, gint enable)
1420 {
1421         if (!imd) return;
1422
1423         if (imd->color_profile_enable == enable) return;
1424
1425         imd->color_profile_enable = enable;
1426 }
1427
1428 gint image_color_profile_get_use(ImageWindow *imd)
1429 {
1430         if (!imd) return FALSE;
1431
1432         return imd->color_profile_enable;
1433 }
1434
1435 gint image_color_profile_get_from_image(ImageWindow *imd)
1436 {
1437         if (!imd) return FALSE;
1438
1439         return imd->color_profile_from_image;
1440 }
1441
1442 void image_set_delay_flip(ImageWindow *imd, gint delay)
1443 {
1444         if (!imd ||
1445             imd->delay_flip == delay) return;
1446
1447         imd->delay_flip = delay;
1448
1449         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1450
1451         if (!imd->delay_flip && imd->il)
1452                 {
1453                 PixbufRenderer *pr;
1454
1455                 pr = PIXBUF_RENDERER(imd->pr);
1456                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1457                 pr->pixbuf = NULL;
1458
1459                 image_load_pixbuf_ready(imd);
1460                 }
1461 }
1462
1463 void image_to_root_window(ImageWindow *imd, gint scaled)
1464 {
1465         GdkScreen *screen;
1466         GdkWindow *rootwindow;
1467         GdkPixmap *pixmap;
1468         GdkPixbuf *pixbuf;
1469         GdkPixbuf *pb;
1470         gint width, height;
1471
1472         if (!imd) return;
1473
1474         pixbuf = image_get_pixbuf(imd);
1475         if (!pixbuf) return;
1476
1477         screen = gtk_widget_get_screen(imd->widget);
1478         rootwindow = gdk_screen_get_root_window(screen);
1479         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1480
1481         if (scaled)
1482                 {
1483                 width = gdk_screen_width();
1484                 height = gdk_screen_height();
1485                 }
1486         else
1487                 {
1488                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1489                 }
1490
1491         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1492
1493         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1494         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1495         gdk_window_clear(rootwindow);
1496         g_object_unref(pb);
1497         g_object_unref(pixmap);
1498
1499         gdk_flush();
1500 }
1501
1502 void image_select(ImageWindow *imd, gboolean select)
1503 {
1504         if (imd->has_frame)
1505                 {
1506                 if (select)
1507                         {
1508                         gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1509                         gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1510                         }
1511                 else
1512                         gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1513                 }
1514 }
1515
1516
1517
1518 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1519 {
1520         if (imd->has_frame)
1521                 {
1522                 if (selectable)
1523                         {
1524                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1525                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 4);
1526                         }
1527                 else
1528                         {
1529                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1530                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 0);
1531                         }
1532                 }
1533 }
1534
1535 /*
1536  *-------------------------------------------------------------------
1537  * prefs sync
1538  *-------------------------------------------------------------------
1539  */
1540
1541 static void image_options_set(ImageWindow *imd)
1542 {
1543         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1544                                         "zoom_2pass", options->image.zoom_2pass,
1545                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1546                                         "dither_quality", options->image.dither_quality,
1547                                         "scroll_reset", options->image.scroll_reset_method,
1548                                         "cache_display", options->image.tile_cache_max,
1549                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1550                                         "window_limit", options->image.limit_window_size,
1551                                         "window_limit_value", options->image.max_window_size,
1552                                         "autofit_limit", options->image.limit_autofit_size,
1553                                         "autofit_limit_value", options->image.max_autofit_size,
1554
1555                                         NULL);
1556
1557         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1558 }
1559
1560 void image_options_sync(void)
1561 {
1562         GList *work;
1563
1564         work = image_list;
1565         while (work)
1566                 {
1567                 ImageWindow *imd;
1568
1569                 imd = work->data;
1570                 work = work->next;
1571
1572                 image_options_set(imd);
1573                 }
1574 }
1575
1576 /*
1577  *-------------------------------------------------------------------
1578  * init / destroy
1579  *-------------------------------------------------------------------
1580  */
1581
1582 static void image_free(ImageWindow *imd)
1583 {
1584         image_list = g_list_remove(image_list, imd);
1585
1586         if (imd->auto_refresh && imd->image_fd)
1587                 file_data_unregister_real_time_monitor(imd->image_fd);
1588
1589         file_data_unregister_notify_func(image_notify_cb, imd);
1590
1591         image_reset(imd);
1592
1593         image_read_ahead_cancel(imd);
1594
1595         file_data_unref(imd->image_fd);
1596         g_free(imd->title);
1597         g_free(imd->title_right);
1598         g_free(imd);
1599 }
1600
1601 static void image_destroy_cb(GtkObject *widget, gpointer data)
1602 {
1603         ImageWindow *imd = data;
1604         image_free(imd);
1605 }
1606
1607 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1608 {
1609         gtk_paint_flat_box(widget->style,
1610                            widget->window,
1611                            widget->state,
1612                            (GTK_FRAME(widget))->shadow_type,
1613                            NULL,
1614                            widget,
1615                            NULL,
1616                            widget->allocation.x + 3, widget->allocation.y + 3,
1617                            widget->allocation.width - 6, widget->allocation.height - 6);
1618
1619
1620         return FALSE;
1621 }
1622
1623
1624 void image_set_frame(ImageWindow *imd, gboolean frame)
1625 {
1626         frame = !!frame;
1627
1628         if (frame == imd->has_frame) return;
1629
1630         gtk_widget_hide(imd->pr);
1631
1632         if (frame)
1633                 {
1634                 imd->frame = gtk_frame_new(NULL);
1635 #if GTK_CHECK_VERSION(2,12,0)
1636                 g_object_ref(imd->pr);
1637 #else
1638                 gtk_widget_ref(imd->pr);
1639 #endif
1640                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1641                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1642
1643 #if GTK_CHECK_VERSION(2,12,0)
1644                 g_object_unref(imd->pr);
1645 #else
1646                 gtk_widget_unref(imd->pr);
1647 #endif
1648                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1649                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1650
1651                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1652                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1653                                  G_CALLBACK(image_focus_in_cb), imd);
1654                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1655                                  G_CALLBACK(image_focus_out_cb), imd);
1656
1657                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1658                                        G_CALLBACK(image_focus_expose), imd);
1659
1660 #if GTK_CHECK_VERSION(2,14,0)
1661                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1662 #else
1663                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1664 #endif
1665                 gtk_widget_show(imd->frame);
1666                 }
1667         else
1668                 {
1669 #if GTK_CHECK_VERSION(2,12,0)
1670                 g_object_ref(imd->pr);
1671 #else
1672                 gtk_widget_ref(imd->pr);
1673 #endif
1674                 if (imd->frame)
1675                         {
1676                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1677                         gtk_widget_destroy(imd->frame);
1678                         imd->frame = NULL;
1679                         }
1680 #if GTK_CHECK_VERSION(2,14,0)
1681                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1682 #else
1683                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1684 #endif
1685
1686 #if GTK_CHECK_VERSION(2,12,0)
1687                 g_object_unref(imd->pr);
1688 #else
1689                 gtk_widget_unref(imd->pr);
1690 #endif
1691                 }
1692
1693         gtk_widget_show(imd->pr);
1694
1695         imd->has_frame = frame;
1696 }
1697
1698 ImageWindow *image_new(gint frame)
1699 {
1700         ImageWindow *imd;
1701
1702         imd = g_new0(ImageWindow, 1);
1703
1704         imd->top_window = NULL;
1705         imd->title = NULL;
1706         imd->title_right = NULL;
1707         imd->title_show_zoom = FALSE;
1708
1709         imd->unknown = TRUE;
1710
1711         imd->has_frame = -1; /* not initialized; for image_set_frame */
1712         imd->top_window_sync = FALSE;
1713
1714         imd->delay_alter_type = ALTER_NONE;
1715
1716         imd->read_ahead_il = NULL;
1717         imd->read_ahead_fd = NULL;
1718
1719         imd->completed = FALSE;
1720         imd->state = IMAGE_STATE_NONE;
1721
1722         imd->color_profile_enable = FALSE;
1723         imd->color_profile_input = 0;
1724         imd->color_profile_screen = 0;
1725         imd->color_profile_use_image = FALSE;
1726         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1727
1728         imd->auto_refresh = FALSE;
1729
1730         imd->delay_flip = FALSE;
1731
1732         imd->func_update = NULL;
1733         imd->func_complete = NULL;
1734         imd->func_tile_request = NULL;
1735         imd->func_tile_dispose = NULL;
1736
1737         imd->func_button = NULL;
1738         imd->func_scroll = NULL;
1739
1740         imd->orientation = 1;
1741
1742         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1743
1744         image_options_set(imd);
1745
1746
1747         imd->widget = gtk_vbox_new(0, 0);
1748
1749         image_set_frame(imd, frame);
1750
1751         image_set_selectable(imd, 0);
1752
1753         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1754                          G_CALLBACK(image_click_cb), imd);
1755         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1756                          G_CALLBACK(image_scroll_notify_cb), imd);
1757
1758         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1759                          G_CALLBACK(image_scroll_cb), imd);
1760
1761         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1762                          G_CALLBACK(image_destroy_cb), imd);
1763
1764         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1765                          G_CALLBACK(image_zoom_cb), imd);
1766         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1767                          G_CALLBACK(image_render_complete_cb), imd);
1768         g_signal_connect(G_OBJECT(imd->pr), "drag",
1769                          G_CALLBACK(image_drag_cb), imd);
1770
1771         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1772
1773         image_list = g_list_append(image_list, imd);
1774
1775         return imd;
1776 }
1777 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */