src/image.c

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