src/image.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2010 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 (!widget->window) return;
 896
 897         if (has_focus)
 898                 {
 899                 gtk_paint_focus(widget->style, widget->window, GTK_STATE_ACTIVE,
 900                                 area, widget, "image_window",
 901                                 widget->allocation.x, widget->allocation.y,
 902                                 widget->allocation.width - 1, widget->allocation.height - 1);
 903                 }
 904         else
 905                 {
 906                 gtk_paint_shadow(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
 907                                  area, widget, "image_window",
 908                                  widget->allocation.x, widget->allocation.y,
 909                                  widget->allocation.width - 1, widget->allocation.height - 1);
 910                 }
 911 }
 912
 913 static gboolean image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 914 {
 915         ImageWindow *imd = data;
 916
 917 #if GTK_CHECK_VERSION(2,20,0)
 918         image_focus_paint(imd, gtk_widget_has_focus(widget), &event->area);
 919 #else
 920         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 921 #endif
 922         return TRUE;
 923 }
 924
 925 static gboolean image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 926 {
 927         ImageWindow *imd = data;
 928
 929         GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 930         image_focus_paint(imd, TRUE, NULL);
 931
 932         if (imd->func_focus_in)
 933                 {
 934                 imd->func_focus_in(imd, imd->data_focus_in);
 935                 }
 936
 937         return TRUE;
 938 }
 939
 940 static gboolean image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 941 {
 942         ImageWindow *imd = data;
 943
 944         GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 945         image_focus_paint(imd, FALSE, NULL);
 946
 947         return TRUE;
 948 }
 949
 950 static gboolean image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 951 {
 952         ImageWindow *imd = data;
 953
 954         if (imd->func_scroll &&
 955             event && event->type == GDK_SCROLL)
 956                 {
 957                 imd->func_scroll(imd, event, imd->data_scroll);
 958                 return TRUE;
 959                 }
 960
 961         return FALSE;
 962 }
 963
 964 /*
 965  *-------------------------------------------------------------------
 966  * public interface
 967  *-------------------------------------------------------------------
 968  */
 969
 970 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 971                          const gchar *title, const gchar *title_right, gboolean show_zoom)
 972 {
 973         imd->top_window = window;
 974         g_free(imd->title);
 975         imd->title = g_strdup(title);
 976         g_free(imd->title_right);
 977         imd->title_right = g_strdup(title_right);
 978         imd->title_show_zoom = show_zoom;
 979
 980         if (!options->image.fit_window_to_image) window = NULL;
 981
 982         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 983
 984         image_update_title(imd);
 985 }
 986
 987 void image_set_update_func(ImageWindow *imd,
 988                            void (*func)(ImageWindow *imd, gpointer data),
 989                            gpointer data)
 990 {
 991         imd->func_update = func;
 992         imd->data_update = data;
 993 }
 994
 995 void image_set_complete_func(ImageWindow *imd,
 996                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
 997                              gpointer data)
 998 {
 999         imd->func_complete = func;
1000         imd->data_complete = data;
1001 }
1002
1003 void image_set_state_func(ImageWindow *imd,
1004                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
1005                         gpointer data)
1006 {
1007         imd->func_state = func;
1008         imd->data_state = data;
1009 }
1010
1011
1012 void image_set_button_func(ImageWindow *imd,
1013                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
1014                            gpointer data)
1015 {
1016         imd->func_button = func;
1017         imd->data_button = data;
1018 }
1019
1020 void image_set_drag_func(ImageWindow *imd,
1021                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
1022                            gpointer data)
1023 {
1024         imd->func_drag = func;
1025         imd->data_drag = data;
1026 }
1027
1028 void image_set_scroll_func(ImageWindow *imd,
1029                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
1030                            gpointer data)
1031 {
1032         imd->func_scroll = func;
1033         imd->data_scroll = data;
1034 }
1035
1036 void image_set_scroll_notify_func(ImageWindow *imd,
1037                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
1038                                   gpointer data)
1039 {
1040         imd->func_scroll_notify = func;
1041         imd->data_scroll_notify = data;
1042 }
1043
1044 void image_set_focus_in_func(ImageWindow *imd,
1045                            void (*func)(ImageWindow *, gpointer),
1046                            gpointer data)
1047 {
1048         imd->func_focus_in = func;
1049         imd->data_focus_in = data;
1050 }
1051
1052 /* path, name */
1053
1054 const gchar *image_get_path(ImageWindow *imd)
1055 {
1056         if (imd->image_fd == NULL) return NULL;
1057         return imd->image_fd->path;
1058 }
1059
1060 const gchar *image_get_name(ImageWindow *imd)
1061 {
1062         if (imd->image_fd == NULL) return NULL;
1063         return imd->image_fd->name;
1064 }
1065
1066 FileData *image_get_fd(ImageWindow *imd)
1067 {
1068         return imd->image_fd;
1069 }
1070
1071 /* merely changes path string, does not change the image! */
1072 void image_set_fd(ImageWindow *imd, FileData *fd)
1073 {
1074         if (imd->auto_refresh && imd->image_fd)
1075                 file_data_unregister_real_time_monitor(imd->image_fd);
1076
1077         file_data_unref(imd->image_fd);
1078         imd->image_fd = file_data_ref(fd);
1079
1080         image_update_title(imd);
1081         image_state_set(imd, IMAGE_STATE_IMAGE);
1082
1083         if (imd->auto_refresh && imd->image_fd)
1084                 file_data_register_real_time_monitor(imd->image_fd);
1085 }
1086
1087 /* load a new image */
1088
1089 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1090 {
1091         if (imd->image_fd == fd) return;
1092
1093         image_change_real(imd, fd, NULL, NULL, zoom);
1094 }
1095
1096 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1097 {
1098         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1099 }
1100
1101 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1102 {
1103         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1104 }
1105
1106 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1107 {
1108         StereoPixbufData stereo_data = STEREO_PIXBUF_DEFAULT;
1109         /* read_exif and similar functions can actually notice that the file has changed and trigger
1110            a notification that removes the pixbuf from cache and unrefs it. Therefore we must ref it
1111            here before it is taken over by the renderer. */
1112         if (pixbuf) g_object_ref(pixbuf);
1113
1114         if (imd->image_fd)
1115                 {
1116                 if (imd->image_fd->user_orientation)
1117                         {
1118                         imd->orientation = imd->image_fd->user_orientation;
1119                         }
1120                 else if (options->image.exif_rotate_enable)
1121                         {
1122                         imd->orientation = metadata_read_int(imd->image_fd, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
1123                         imd->image_fd->exif_orientation = imd->orientation;
1124                         }
1125                 }
1126
1127         if (pixbuf)
1128                 {
1129                 stereo_data = imd->user_stereo;
1130                 if (stereo_data == STEREO_PIXBUF_DEFAULT)
1131                         {
1132                         stereo_data = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(pixbuf), "stereo_data"));
1133                         }
1134                 }
1135
1136         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1137         if (imd->cm)
1138                 {
1139                 color_man_free(imd->cm);
1140                 imd->cm = NULL;
1141                 }
1142
1143         if (lazy)
1144                 {
1145                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation, stereo_data);
1146                 }
1147         else
1148                 {
1149                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1150                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1151                 pixbuf_renderer_set_stereo_data((PixbufRenderer *)imd->pr, stereo_data);
1152                 }
1153
1154         if (pixbuf) g_object_unref(pixbuf);
1155
1156         if (imd->color_profile_enable)
1157                 {
1158                 image_post_process_color(imd, 0, FALSE); /* TODO: error handling */
1159                 }
1160
1161         if (imd->cm || imd->desaturate)
1162                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1163
1164         image_state_set(imd, IMAGE_STATE_IMAGE);
1165 }
1166
1167 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1168 {
1169         if (!cd || !info || !g_list_find(cd->list, info)) return;
1170
1171         image_change_real(imd, info->fd, cd, info, zoom);
1172 }
1173
1174 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1175 {
1176         if (collection_to_number(imd->collection) >= 0)
1177                 {
1178                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1179                         {
1180                         if (info) *info = imd->collection_info;
1181                         }
1182                 else
1183                         {
1184                         if (info) *info = NULL;
1185                         }
1186                 return imd->collection;
1187                 }
1188
1189         if (info) *info = NULL;
1190         return NULL;
1191 }
1192
1193 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1194 {
1195         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1196                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1197
1198         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1199                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1200 }
1201
1202 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1203 {
1204         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1205                 g_signal_connect(G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1206
1207         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1208                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1209
1210         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1211                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1212 }
1213
1214 /* this is more like a move function
1215  * it moves most data from source to imd
1216  */
1217 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1218 {
1219         if (imd == source) return;
1220
1221         imd->unknown = source->unknown;
1222
1223         imd->collection = source->collection;
1224         imd->collection_info = source->collection_info;
1225
1226         image_loader_free(imd->il);
1227         imd->il = NULL;
1228
1229         image_set_fd(imd, image_get_fd(source));
1230
1231
1232         if (source->il)
1233                 {
1234                 imd->il = source->il;
1235                 source->il = NULL;
1236
1237                 image_loader_sync_data(imd->il, source, imd);
1238
1239                 imd->delay_alter_type = source->delay_alter_type;
1240                 source->delay_alter_type = ALTER_NONE;
1241                 }
1242
1243         imd->color_profile_enable = source->color_profile_enable;
1244         imd->color_profile_input = source->color_profile_input;
1245         imd->color_profile_use_image = source->color_profile_use_image;
1246         color_man_free((ColorMan *)imd->cm);
1247         imd->cm = NULL;
1248         if (source->cm)
1249                 {
1250                 ColorMan *cm;
1251
1252                 imd->cm = source->cm;
1253                 source->cm = NULL;
1254
1255                 cm = (ColorMan *)imd->cm;
1256                 cm->imd = imd;
1257                 cm->func_done_data = imd;
1258                 }
1259
1260         image_loader_free(imd->read_ahead_il);
1261         imd->read_ahead_il = source->read_ahead_il;
1262         source->read_ahead_il = NULL;
1263         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1264
1265         file_data_unref(imd->read_ahead_fd);
1266         imd->read_ahead_fd = source->read_ahead_fd;
1267         source->read_ahead_fd = NULL;
1268
1269         imd->completed = source->completed;
1270         imd->state = source->state;
1271         source->state = IMAGE_STATE_NONE;
1272
1273         imd->orientation = source->orientation;
1274         imd->desaturate = source->desaturate;
1275
1276         imd->user_stereo = source->user_stereo;
1277
1278         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1279
1280         if (imd->cm || imd->desaturate)
1281                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1282         else
1283                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1284
1285 }
1286
1287 /* manipulation */
1288
1289 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1290 {
1291         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1292 }
1293
1294 void image_reload(ImageWindow *imd)
1295 {
1296         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1297
1298         image_change_complete(imd, image_zoom_get(imd));
1299 }
1300
1301 void image_scroll(ImageWindow *imd, gint x, gint y)
1302 {
1303         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1304 }
1305
1306 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1307                            gdouble x_align, gdouble y_align)
1308 {
1309         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1310 }
1311
1312 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1313 {
1314         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1315 }
1316
1317 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1318 {
1319         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1320 }
1321
1322 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1323 {
1324         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1325 }
1326
1327 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1328 {
1329         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1330 }
1331
1332 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1333 {
1334         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1335 }
1336
1337 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1338 {
1339         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1340 }
1341
1342 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1343 {
1344         PixbufRenderer *pr;
1345         gdouble zoom;
1346         gint width, height;
1347
1348         pr = (PixbufRenderer *)imd->pr;
1349
1350         if (!pixbuf_renderer_get_pixbuf(pr) ||
1351             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1352
1353         if (vertical)
1354                 {
1355                 zoom = (gdouble)pr->viewport_height / height;
1356                 }
1357         else
1358                 {
1359                 zoom = (gdouble)pr->viewport_width / width;
1360                 }
1361
1362         if (zoom < 1.0)
1363                 {
1364                 zoom = 0.0 - 1.0 / zoom;
1365                 }
1366
1367         pixbuf_renderer_zoom_set(pr, zoom);
1368 }
1369
1370 gdouble image_zoom_get(ImageWindow *imd)
1371 {
1372         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1373 }
1374
1375 gdouble image_zoom_get_real(ImageWindow *imd)
1376 {
1377         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1378 }
1379
1380 gchar *image_zoom_get_as_text(ImageWindow *imd)
1381 {
1382         gdouble zoom;
1383         gdouble scale;
1384         gdouble l = 1.0;
1385         gdouble r = 1.0;
1386         gint pl = 0;
1387         gint pr = 0;
1388         gchar *approx = " ";
1389
1390         zoom = image_zoom_get(imd);
1391         scale = image_zoom_get_real(imd);
1392
1393         if (zoom > 0.0)
1394                 {
1395                 l = zoom;
1396                 }
1397         else if (zoom < 0.0)
1398                 {
1399                 r = 0.0 - zoom;
1400                 }
1401         else if (zoom == 0.0 && scale != 0.0)
1402                 {
1403                 if (scale >= 1.0)
1404                         {
1405                         l = scale;
1406                         }
1407                 else
1408                         {
1409                         r = 1.0 / scale;
1410                         }
1411                 approx = "~";
1412                 }
1413
1414         if (rint(l) != l) pl = 1;
1415         if (rint(r) != r) pr = 1;
1416
1417         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1418 }
1419
1420 gdouble image_zoom_get_default(ImageWindow *imd)
1421 {
1422         gdouble zoom = 1.0;
1423
1424         switch (options->image.zoom_mode)
1425         {
1426         case ZOOM_RESET_ORIGINAL:
1427                 break;
1428         case ZOOM_RESET_FIT_WINDOW:
1429                 zoom = 0.0;
1430                 break;
1431         case ZOOM_RESET_NONE:
1432                 if (imd) zoom = image_zoom_get(imd);
1433                 break;
1434         }
1435
1436         return zoom;
1437 }
1438
1439 /* stereo */
1440 gint image_stereo_get(ImageWindow *imd)
1441 {
1442         return pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1443 }
1444
1445 void image_stereo_set(ImageWindow *imd, gint stereo_mode)
1446 {
1447         DEBUG_1("Setting stereo mode %04x for imd %p", stereo_mode, imd);
1448         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1449 }
1450
1451 void image_stereo_swap(ImageWindow *imd)
1452 {
1453         gint stereo_mode = pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1454         stereo_mode ^= PR_STEREO_SWAP;
1455         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1456 }
1457
1458 StereoPixbufData image_stereo_pixbuf_get(ImageWindow *imd)
1459 {
1460         return imd->user_stereo;
1461 }
1462
1463 void image_stereo_pixbuf_set(ImageWindow *imd, StereoPixbufData stereo_mode)
1464 {
1465         imd->user_stereo = stereo_mode;
1466         image_reload(imd);
1467 }
1468
1469 /* read ahead */
1470
1471 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1472 {
1473         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1474
1475         if (fd)
1476                 {
1477                 if (!file_cache_get(image_get_cache(), fd))
1478                         {
1479                         image_read_ahead_set(imd, fd);
1480                         }
1481                 }
1482         else
1483                 {
1484                 image_read_ahead_cancel(imd);
1485                 }
1486 }
1487
1488 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1489 {
1490         ImageWindow *imd = data;
1491
1492         if (!imd || !image_get_pixbuf(imd) ||
1493             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1494             !imd->image_fd || /* nothing to reload */
1495             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1496             ) return;
1497
1498         if ((type & NOTIFY_REREAD) && fd == imd->image_fd)
1499                 {
1500                 /* there is no need to reload on NOTIFY_CHANGE,
1501                    modified files should be detacted anyway and NOTIFY_REREAD should be recieved
1502                    or they are removed from the filelist completely on "move" and "delete"
1503                 */
1504                 DEBUG_1("Notify image: %s %04x", fd->path, type);
1505                 image_reload(imd);
1506                 }
1507 }
1508
1509 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1510 {
1511         if (!enable && imd->auto_refresh && imd->image_fd)
1512                 file_data_unregister_real_time_monitor(imd->image_fd);
1513
1514         if (enable && !imd->auto_refresh && imd->image_fd)
1515                 file_data_register_real_time_monitor(imd->image_fd);
1516
1517         imd->auto_refresh = enable;
1518 }
1519
1520 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1521 {
1522         imd->top_window_sync = allow_sync;
1523
1524         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1525 }
1526
1527 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1528 {
1529         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1530 }
1531
1532 void image_background_set_color_from_options(ImageWindow *imd, gboolean fullscreen)
1533 {
1534         GdkColor *color = NULL;
1535
1536         if ((options->image.use_custom_border_color && !fullscreen) ||
1537             (options->image.use_custom_border_color_in_fullscreen && fullscreen))
1538                 {
1539                 color = &options->image.border_color;
1540                 }
1541
1542         image_background_set_color(imd, color);
1543 }
1544
1545 void image_color_profile_set(ImageWindow *imd,
1546                              gint input_type,
1547                              gboolean use_image)
1548 {
1549         if (!imd) return;
1550
1551         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
1552                 {
1553                 return;
1554                 }
1555
1556         imd->color_profile_input = input_type;
1557         imd->color_profile_use_image = use_image;
1558 }
1559
1560 gboolean image_color_profile_get(ImageWindow *imd,
1561                                  gint *input_type,
1562                                  gboolean *use_image)
1563 {
1564         if (!imd) return FALSE;
1565
1566         if (input_type) *input_type = imd->color_profile_input;
1567         if (use_image) *use_image = imd->color_profile_use_image;
1568
1569         return TRUE;
1570 }
1571
1572 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1573 {
1574         if (!imd) return;
1575
1576         if (imd->color_profile_enable == enable) return;
1577
1578         imd->color_profile_enable = enable;
1579 }
1580
1581 gboolean image_color_profile_get_use(ImageWindow *imd)
1582 {
1583         if (!imd) return FALSE;
1584
1585         return imd->color_profile_enable;
1586 }
1587
1588 gboolean image_color_profile_get_status(ImageWindow *imd, gchar **image_profile, gchar **screen_profile)
1589 {
1590         ColorMan *cm;
1591         if (!imd) return FALSE;
1592
1593         cm = imd->cm;
1594         if (!cm) return FALSE;
1595         return color_man_get_status(cm, image_profile, screen_profile);
1596
1597 }
1598
1599 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1600 {
1601         if (!imd ||
1602             imd->delay_flip == delay) return;
1603
1604         imd->delay_flip = delay;
1605
1606         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1607
1608         if (!imd->delay_flip && imd->il)
1609                 {
1610                 PixbufRenderer *pr;
1611
1612                 pr = PIXBUF_RENDERER(imd->pr);
1613                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1614                 pr->pixbuf = NULL;
1615
1616                 image_load_pixbuf_ready(imd);
1617                 }
1618 }
1619
1620 void image_to_root_window(ImageWindow *imd, gboolean scaled)
1621 {
1622         GdkScreen *screen;
1623         GdkWindow *rootwindow;
1624         GdkPixmap *pixmap;
1625         GdkPixbuf *pixbuf;
1626         GdkPixbuf *pb;
1627         gint width, height;
1628
1629         if (!imd) return;
1630
1631         pixbuf = image_get_pixbuf(imd);
1632         if (!pixbuf) return;
1633
1634         screen = gtk_widget_get_screen(imd->widget);
1635         rootwindow = gdk_screen_get_root_window(screen);
1636         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1637
1638         if (scaled)
1639                 {
1640                 width = gdk_screen_width();
1641                 height = gdk_screen_height();
1642                 }
1643         else
1644                 {
1645                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1646                 }
1647
1648         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1649
1650         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1651         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1652         gdk_window_clear(rootwindow);
1653         g_object_unref(pb);
1654         g_object_unref(pixmap);
1655
1656         gdk_flush();
1657 }
1658
1659 void image_select(ImageWindow *imd, gboolean select)
1660 {
1661         if (!imd->has_frame) return;
1662
1663         if (select)
1664                 {
1665                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1666                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1667                 }
1668         else
1669                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1670 }
1671
1672 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1673 {
1674         if (!imd->has_frame) return;
1675
1676         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1677         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
1678 }
1679
1680 void image_grab_focus(ImageWindow *imd)
1681 {
1682         if (imd->has_frame)
1683                 {
1684                 gtk_widget_grab_focus(imd->frame);
1685                 }
1686         else
1687                 {
1688                 gtk_widget_grab_focus(imd->widget);
1689                 }
1690 }
1691
1692
1693 /*
1694  *-------------------------------------------------------------------
1695  * prefs sync
1696  *-------------------------------------------------------------------
1697  */
1698
1699 static void image_options_set(ImageWindow *imd)
1700 {
1701         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1702                                         "zoom_2pass", options->image.zoom_2pass,
1703                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1704                                         "dither_quality", options->image.dither_quality,
1705                                         "scroll_reset", options->image.scroll_reset_method,
1706                                         "cache_display", options->image.tile_cache_max,
1707                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1708                                         "window_limit", options->image.limit_window_size,
1709                                         "window_limit_value", options->image.max_window_size,
1710                                         "autofit_limit", options->image.limit_autofit_size,
1711                                         "autofit_limit_value", options->image.max_autofit_size,
1712
1713                                         NULL);
1714
1715         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1716
1717         image_stereo_set(imd, options->stereo.mode);
1718         pixbuf_renderer_stereo_fixed_set((PixbufRenderer *)imd->pr,
1719                                         options->stereo.fixed_w, options->stereo.fixed_h,
1720                                         options->stereo.fixed_x1, options->stereo.fixed_y1,
1721                                         options->stereo.fixed_x2, options->stereo.fixed_y2);
1722 }
1723
1724 void image_options_sync(void)
1725 {
1726         GList *work;
1727
1728         work = image_list;
1729         while (work)
1730                 {
1731                 ImageWindow *imd;
1732
1733                 imd = work->data;
1734                 work = work->next;
1735
1736                 image_options_set(imd);
1737                 }
1738 }
1739
1740 /*
1741  *-------------------------------------------------------------------
1742  * init / destroy
1743  *-------------------------------------------------------------------
1744  */
1745
1746 static void image_free(ImageWindow *imd)
1747 {
1748         image_list = g_list_remove(image_list, imd);
1749
1750         if (imd->auto_refresh && imd->image_fd)
1751                 file_data_unregister_real_time_monitor(imd->image_fd);
1752
1753         file_data_unregister_notify_func(image_notify_cb, imd);
1754
1755         image_reset(imd);
1756
1757         image_read_ahead_cancel(imd);
1758
1759         file_data_unref(imd->image_fd);
1760         g_free(imd->title);
1761         g_free(imd->title_right);
1762         g_free(imd);
1763 }
1764
1765 static void image_destroy_cb(GtkObject *widget, gpointer data)
1766 {
1767         ImageWindow *imd = data;
1768         image_free(imd);
1769 }
1770
1771 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1772 {
1773         gtk_paint_flat_box(widget->style,
1774                            widget->window,
1775                            widget->state,
1776                            (GTK_FRAME(widget))->shadow_type,
1777                            NULL,
1778                            widget,
1779                            NULL,
1780                            widget->allocation.x + 3, widget->allocation.y + 3,
1781                            widget->allocation.width - 6, widget->allocation.height - 6);
1782
1783
1784         return FALSE;
1785 }
1786
1787
1788 void image_set_frame(ImageWindow *imd, gboolean frame)
1789 {
1790         frame = !!frame;
1791
1792         if (frame == imd->has_frame) return;
1793
1794         gtk_widget_hide(imd->pr);
1795
1796         if (frame)
1797                 {
1798                 imd->frame = gtk_frame_new(NULL);
1799 #if GTK_CHECK_VERSION(2,12,0)
1800                 g_object_ref(imd->pr);
1801 #else
1802                 gtk_widget_ref(imd->pr);
1803 #endif
1804                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1805                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1806
1807 #if GTK_CHECK_VERSION(2,12,0)
1808                 g_object_unref(imd->pr);
1809 #else
1810                 gtk_widget_unref(imd->pr);
1811 #endif
1812                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1813                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1814
1815                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1816                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1817                                  G_CALLBACK(image_focus_in_cb), imd);
1818                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1819                                  G_CALLBACK(image_focus_out_cb), imd);
1820
1821                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1822                                        G_CALLBACK(image_focus_expose), imd);
1823
1824 #if GTK_CHECK_VERSION(2,14,0)
1825                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1826 #else
1827                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1828 #endif
1829                 gtk_widget_show(imd->frame);
1830                 }
1831         else
1832                 {
1833 #if GTK_CHECK_VERSION(2,12,0)
1834                 g_object_ref(imd->pr);
1835 #else
1836                 gtk_widget_ref(imd->pr);
1837 #endif
1838                 if (imd->frame)
1839                         {
1840                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1841                         gtk_widget_destroy(imd->frame);
1842                         imd->frame = NULL;
1843                         }
1844 #if GTK_CHECK_VERSION(2,14,0)
1845                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1846 #else
1847                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1848 #endif
1849
1850 #if GTK_CHECK_VERSION(2,12,0)
1851                 g_object_unref(imd->pr);
1852 #else
1853                 gtk_widget_unref(imd->pr);
1854 #endif
1855                 }
1856
1857         gtk_widget_show(imd->pr);
1858
1859         imd->has_frame = frame;
1860 }
1861
1862 ImageWindow *image_new(gboolean frame)
1863 {
1864         ImageWindow *imd;
1865
1866         imd = g_new0(ImageWindow, 1);
1867
1868         imd->unknown = TRUE;
1869         imd->has_frame = -1; /* not initialized; for image_set_frame */
1870         imd->delay_alter_type = ALTER_NONE;
1871         imd->state = IMAGE_STATE_NONE;
1872         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1873         imd->orientation = 1;
1874
1875         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1876
1877         image_options_set(imd);
1878
1879         imd->widget = gtk_vbox_new(0, 0);
1880
1881         image_set_frame(imd, frame);
1882
1883         image_set_selectable(imd, 0);
1884
1885         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1886                          G_CALLBACK(image_click_cb), imd);
1887         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1888                          G_CALLBACK(image_scroll_notify_cb), imd);
1889
1890         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1891                          G_CALLBACK(image_scroll_cb), imd);
1892
1893         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1894                          G_CALLBACK(image_destroy_cb), imd);
1895
1896         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1897                          G_CALLBACK(image_zoom_cb), imd);
1898         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1899                          G_CALLBACK(image_render_complete_cb), imd);
1900         g_signal_connect(G_OBJECT(imd->pr), "drag",
1901                          G_CALLBACK(image_drag_cb), imd);
1902
1903         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1904
1905         image_list = g_list_append(image_list, imd);
1906
1907         return imd;
1908 }
1909 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */