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                 }
 349
 350         image_update_util(imd);
 351
 352         if (screen_profile)
 353                 {
 354                 g_free(screen_profile);
 355                 screen_profile = NULL;
 356                 }
 357
 358         return !!cm;
 359 }
 360
 361
 362 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 363 {
 364         ImageWindow *imd = (ImageWindow *)data;
 365         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
 366         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 367
 368 }
 369
 370 void image_alter_orientation(ImageWindow *imd, AlterType type)
 371 {
 372         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 373         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 374         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 375         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 376         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 377
 378
 379         if (!imd || !imd->pr || !imd->image_fd) return;
 380
 381         if (imd->orientation < 1 || imd->orientation > 8) imd->orientation = 1;
 382
 383         switch (type)
 384                 {
 385                 case ALTER_ROTATE_90:
 386                         imd->orientation = rotate_90[imd->orientation];
 387                         break;
 388                 case ALTER_ROTATE_90_CC:
 389                         imd->orientation = rotate_90_cc[imd->orientation];
 390                         break;
 391                 case ALTER_ROTATE_180:
 392                         imd->orientation = rotate_180[imd->orientation];
 393                         break;
 394                 case ALTER_MIRROR:
 395                         imd->orientation = mirror[imd->orientation];
 396                         break;
 397                 case ALTER_FLIP:
 398                         imd->orientation = flip[imd->orientation];
 399                         break;
 400                 case ALTER_NONE:
 401                         imd->orientation = imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1;
 402                         break;
 403                 default:
 404                         return;
 405                         break;
 406                 }
 407
 408         if (imd->orientation != imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1)
 409                 {
 410                 if (!options->metadata.write_orientation)
 411                         {
 412                         /* user_orientation does not work together with options->metadata.write_orientation,
 413                            use either one or the other.
 414                            we must however handle switching metadata.write_orientation on and off, therefore
 415                            we just disable referencing new fd's, not unreferencing the old ones
 416                         */
 417                         if (imd->image_fd->user_orientation == 0) file_data_ref(imd->image_fd);
 418                         imd->image_fd->user_orientation = imd->orientation;
 419                         }
 420                 }
 421         else
 422                 {
 423                 if (imd->image_fd->user_orientation != 0) file_data_unref(imd->image_fd);
 424                 imd->image_fd->user_orientation = 0;
 425                 }
 426
 427         if (options->metadata.write_orientation)
 428                 {
 429                 if (type == ALTER_NONE)
 430                         {
 431                         metadata_write_revert(imd->image_fd, ORIENTATION_KEY);
 432                         }
 433                 else
 434                         {
 435                         metadata_write_int(imd->image_fd, ORIENTATION_KEY, imd->orientation);
 436                         }
 437                 }
 438
 439         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 440 }
 441
 442 void image_set_desaturate(ImageWindow *imd, gboolean desaturate)
 443 {
 444         imd->desaturate = desaturate;
 445         if (imd->cm || imd->desaturate)
 446                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 447         else
 448                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 449         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 450 }
 451
 452 gboolean image_get_desaturate(ImageWindow *imd)
 453 {
 454         return imd->desaturate;
 455 }
 456
 457 /*
 458  *-------------------------------------------------------------------
 459  * read ahead (prebuffer)
 460  *-------------------------------------------------------------------
 461  */
 462
 463 static void image_read_ahead_cancel(ImageWindow *imd)
 464 {
 465         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 466
 467         image_loader_free(imd->read_ahead_il);
 468         imd->read_ahead_il = NULL;
 469
 470         file_data_unref(imd->read_ahead_fd);
 471         imd->read_ahead_fd = NULL;
 472 }
 473
 474 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 475 {
 476         ImageWindow *imd = data;
 477
 478         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 479
 480         if (!imd->read_ahead_fd->pixbuf)
 481                 {
 482                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 483                 if (imd->read_ahead_fd->pixbuf)
 484                         {
 485                         g_object_ref(imd->read_ahead_fd->pixbuf);
 486                         image_cache_set(imd, imd->read_ahead_fd);
 487                         }
 488                 }
 489         image_loader_free(imd->read_ahead_il);
 490         imd->read_ahead_il = NULL;
 491
 492         image_complete_util(imd, TRUE);
 493 }
 494
 495 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 496 {
 497         /* we even treat errors as success, maybe at least some of the file was ok */
 498         image_read_ahead_done_cb(il, data);
 499 }
 500
 501 static void image_read_ahead_start(ImageWindow *imd)
 502 {
 503         /* already started ? */
 504         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 505
 506         /* still loading ?, do later */
 507         if (imd->il /*|| imd->cm*/) return;
 508
 509         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 510
 511         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 512
 513         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 514
 515         g_signal_connect(G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 516         g_signal_connect(G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 517
 518         if (!image_loader_start(imd->read_ahead_il))
 519                 {
 520                 image_read_ahead_cancel(imd);
 521                 image_complete_util(imd, TRUE);
 522                 }
 523 }
 524
 525 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 526 {
 527         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 528
 529         image_read_ahead_cancel(imd);
 530
 531         imd->read_ahead_fd = file_data_ref(fd);
 532
 533         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 534
 535         image_read_ahead_start(imd);
 536 }
 537
 538 /*
 539  *-------------------------------------------------------------------
 540  * post buffering
 541  *-------------------------------------------------------------------
 542  */
 543
 544 static void image_cache_release_cb(FileData *fd)
 545 {
 546         g_object_unref(fd->pixbuf);
 547         fd->pixbuf = NULL;
 548 }
 549
 550 static FileCacheData *image_get_cache(void)
 551 {
 552         static FileCacheData *cache = NULL;
 553         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 554         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 555         return cache;
 556 }
 557
 558 static void image_cache_set(ImageWindow *imd, FileData *fd)
 559 {
 560         g_assert(fd->pixbuf);
 561
 562         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 563         file_data_send_notification(fd, NOTIFY_PIXBUF); /* to update histogram */
 564 }
 565
 566 static gint image_cache_get(ImageWindow *imd)
 567 {
 568         gint success;
 569
 570         success = file_cache_get(image_get_cache(), imd->image_fd);
 571         if (success)
 572                 {
 573                 g_assert(imd->image_fd->pixbuf);
 574                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 575                 }
 576
 577 //      file_cache_dump(image_get_cache());
 578         return success;
 579 }
 580
 581 /*
 582  *-------------------------------------------------------------------
 583  * loading
 584  *-------------------------------------------------------------------
 585  */
 586
 587 static void image_load_pixbuf_ready(ImageWindow *imd)
 588 {
 589         if (image_get_pixbuf(imd) || !imd->il) return;
 590
 591         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 592 }
 593
 594 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 595 {
 596         ImageWindow *imd = data;
 597         PixbufRenderer *pr;
 598
 599         pr = (PixbufRenderer *)imd->pr;
 600
 601         if (imd->delay_flip &&
 602             pr->pixbuf != image_loader_get_pixbuf(il))
 603                 {
 604                 return;
 605                 }
 606
 607         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 608
 609         pixbuf_renderer_area_changed(pr, x, y, w, h);
 610 }
 611
 612 static void image_load_done_cb(ImageLoader *il, gpointer data)
 613 {
 614         ImageWindow *imd = data;
 615
 616         DEBUG_1("%s image done", get_exec_time());
 617
 618         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 619                 {
 620                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
 621                 image_cache_set(imd, imd->image_fd);
 622                 }
 623         /* call the callback triggered by image_state after fd->pixbuf is set */
 624         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 625         image_state_unset(imd, IMAGE_STATE_LOADING);
 626
 627         if (!image_loader_get_pixbuf(imd->il))
 628                 {
 629                 GdkPixbuf *pixbuf;
 630
 631                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 632                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 633                 g_object_unref(pixbuf);
 634
 635                 imd->unknown = TRUE;
 636                 }
 637         else if (imd->delay_flip &&
 638             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 639                 {
 640                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 641                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 642                 }
 643
 644         image_loader_free(imd->il);
 645         imd->il = NULL;
 646
 647 //      image_post_process(imd, TRUE);
 648
 649         image_read_ahead_start(imd);
 650 }
 651
 652 static void image_load_size_cb(ImageLoader *il, guint width, guint height, gpointer data)
 653 {
 654         ImageWindow *imd = data;
 655
 656         DEBUG_1("image_load_size_cb: %dx%d", width, height);
 657         pixbuf_renderer_set_size_early((PixbufRenderer *)imd->pr, width, height);
 658 }
 659
 660 static void image_load_error_cb(ImageLoader *il, gpointer data)
 661 {
 662         DEBUG_1("%s image error", get_exec_time());
 663
 664         /* even on error handle it like it was done,
 665          * since we have a pixbuf with _something_ */
 666
 667         image_load_done_cb(il, data);
 668 }
 669
 670 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
 671 {
 672         g_assert(imd->il);
 673         if (override_old_signals)
 674                 {
 675                 /* override the old signals */
 676                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 677                 }
 678
 679         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 680         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 681         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 682         g_signal_connect(G_OBJECT(imd->il), "size_prepared", (GCallback)image_load_size_cb, imd);
 683 }
 684
 685 /* this read ahead is located here merely for the callbacks, above */
 686
 687 static gboolean image_read_ahead_check(ImageWindow *imd)
 688 {
 689         if (!imd->read_ahead_fd) return FALSE;
 690         if (imd->il) return FALSE;
 691
 692         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 693                 {
 694                 image_read_ahead_cancel(imd);
 695                 return FALSE;
 696                 }
 697
 698         if (imd->read_ahead_il)
 699                 {
 700                 imd->il = imd->read_ahead_il;
 701                 imd->read_ahead_il = NULL;
 702
 703                 image_load_set_signals(imd, TRUE);
 704
 705                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 706                 image_state_set(imd, IMAGE_STATE_LOADING);
 707
 708                 if (!imd->delay_flip)
 709                         {
 710                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 711                         }
 712
 713                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 714
 715                 file_data_unref(imd->read_ahead_fd);
 716                 imd->read_ahead_fd = NULL;
 717                 return TRUE;
 718                 }
 719         else if (imd->read_ahead_fd->pixbuf)
 720                 {
 721                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
 722
 723                 file_data_unref(imd->read_ahead_fd);
 724                 imd->read_ahead_fd = NULL;
 725
 726 //              image_post_process(imd, FALSE);
 727                 return TRUE;
 728                 }
 729
 730         image_read_ahead_cancel(imd);
 731         return FALSE;
 732 }
 733
 734 static gboolean image_load_begin(ImageWindow *imd, FileData *fd)
 735 {
 736         DEBUG_1("%s image begin", get_exec_time());
 737
 738         if (imd->il) return FALSE;
 739
 740         imd->completed = FALSE;
 741         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 742
 743         if (image_cache_get(imd))
 744                 {
 745                 DEBUG_1("from cache: %s", imd->image_fd->path);
 746                 return TRUE;
 747                 }
 748
 749         if (image_read_ahead_check(imd))
 750                 {
 751                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 752                 return TRUE;
 753                 }
 754
 755         if (!imd->delay_flip && image_get_pixbuf(imd))
 756                 {
 757                 PixbufRenderer *pr;
 758
 759                 pr = PIXBUF_RENDERER(imd->pr);
 760                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 761                 pr->pixbuf = NULL;
 762                 }
 763
 764         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 765
 766         imd->il = image_loader_new(fd);
 767
 768         image_load_set_signals(imd, FALSE);
 769
 770         if (!image_loader_start(imd->il))
 771                 {
 772                 DEBUG_1("image start error");
 773
 774                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 775
 776                 image_loader_free(imd->il);
 777                 imd->il = NULL;
 778
 779                 image_complete_util(imd, FALSE);
 780
 781                 return FALSE;
 782                 }
 783
 784         image_state_set(imd, IMAGE_STATE_LOADING);
 785
 786 /*
 787         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
 788                 {
 789                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 790                 }
 791 */
 792         return TRUE;
 793 }
 794
 795 static void image_reset(ImageWindow *imd)
 796 {
 797         /* stops anything currently being done */
 798
 799         DEBUG_1("%s image reset", get_exec_time());
 800
 801         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 802
 803         image_loader_free(imd->il);
 804         imd->il = NULL;
 805
 806         color_man_free((ColorMan *)imd->cm);
 807         imd->cm = NULL;
 808
 809         imd->delay_alter_type = ALTER_NONE;
 810
 811         image_state_set(imd, IMAGE_STATE_NONE);
 812 }
 813
 814 /*
 815  *-------------------------------------------------------------------
 816  * image changer
 817  *-------------------------------------------------------------------
 818  */
 819
 820 static void image_change_complete(ImageWindow *imd, gdouble zoom)
 821 {
 822         image_reset(imd);
 823         imd->unknown = TRUE;
 824
 825         if (!imd->image_fd)
 826                 {
 827                 image_change_pixbuf(imd, NULL, zoom, FALSE);
 828                 }
 829         else
 830                 {
 831
 832                 if (is_readable_file(imd->image_fd->path))
 833                         {
 834                         PixbufRenderer *pr;
 835
 836                         pr = PIXBUF_RENDERER(imd->pr);
 837                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
 838
 839                         if (image_load_begin(imd, imd->image_fd))
 840                                 {
 841                                 imd->unknown = FALSE;
 842                                 }
 843                         }
 844
 845                 if (imd->unknown == TRUE)
 846                         {
 847                         GdkPixbuf *pixbuf;
 848
 849                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 850                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 851                         g_object_unref(pixbuf);
 852                         }
 853                 }
 854
 855         image_update_util(imd);
 856 }
 857
 858 static void image_change_real(ImageWindow *imd, FileData *fd,
 859                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 860 {
 861
 862         imd->collection = cd;
 863         imd->collection_info = info;
 864
 865         if (imd->auto_refresh && imd->image_fd)
 866                 file_data_unregister_real_time_monitor(imd->image_fd);
 867
 868         file_data_unref(imd->image_fd);
 869         imd->image_fd = file_data_ref(fd);
 870
 871
 872         image_change_complete(imd, zoom);
 873
 874         image_update_title(imd);
 875         image_state_set(imd, IMAGE_STATE_IMAGE);
 876
 877         if (imd->auto_refresh && imd->image_fd)
 878                 file_data_register_real_time_monitor(imd->image_fd);
 879 }
 880
 881 /*
 882  *-------------------------------------------------------------------
 883  * focus stuff
 884  *-------------------------------------------------------------------
 885  */
 886
 887 static gboolean image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 888 {
 889         ImageWindow *imd = data;
 890
 891         if (imd->func_focus_in)
 892                 {
 893                 imd->func_focus_in(imd, imd->data_focus_in);
 894                 }
 895
 896         return TRUE;
 897 }
 898
 899 static gboolean image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 900 {
 901         ImageWindow *imd = data;
 902
 903         if (imd->func_scroll &&
 904             event && event->type == GDK_SCROLL)
 905                 {
 906                 imd->func_scroll(imd, event, imd->data_scroll);
 907                 return TRUE;
 908                 }
 909
 910         return FALSE;
 911 }
 912
 913 /*
 914  *-------------------------------------------------------------------
 915  * public interface
 916  *-------------------------------------------------------------------
 917  */
 918
 919 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 920                          const gchar *title, const gchar *title_right, gboolean show_zoom)
 921 {
 922         imd->top_window = window;
 923         g_free(imd->title);
 924         imd->title = g_strdup(title);
 925         g_free(imd->title_right);
 926         imd->title_right = g_strdup(title_right);
 927         imd->title_show_zoom = show_zoom;
 928
 929         if (!options->image.fit_window_to_image) window = NULL;
 930
 931         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 932
 933         image_update_title(imd);
 934 }
 935
 936 void image_set_update_func(ImageWindow *imd,
 937                            void (*func)(ImageWindow *imd, gpointer data),
 938                            gpointer data)
 939 {
 940         imd->func_update = func;
 941         imd->data_update = data;
 942 }
 943
 944 void image_set_complete_func(ImageWindow *imd,
 945                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
 946                              gpointer data)
 947 {
 948         imd->func_complete = func;
 949         imd->data_complete = data;
 950 }
 951
 952 void image_set_state_func(ImageWindow *imd,
 953                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 954                         gpointer data)
 955 {
 956         imd->func_state = func;
 957         imd->data_state = data;
 958 }
 959
 960
 961 void image_set_button_func(ImageWindow *imd,
 962                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
 963                            gpointer data)
 964 {
 965         imd->func_button = func;
 966         imd->data_button = data;
 967 }
 968
 969 void image_set_drag_func(ImageWindow *imd,
 970                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
 971                            gpointer data)
 972 {
 973         imd->func_drag = func;
 974         imd->data_drag = data;
 975 }
 976
 977 void image_set_scroll_func(ImageWindow *imd,
 978                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
 979                            gpointer data)
 980 {
 981         imd->func_scroll = func;
 982         imd->data_scroll = data;
 983 }
 984
 985 void image_set_scroll_notify_func(ImageWindow *imd,
 986                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
 987                                   gpointer data)
 988 {
 989         imd->func_scroll_notify = func;
 990         imd->data_scroll_notify = data;
 991 }
 992
 993 void image_set_focus_in_func(ImageWindow *imd,
 994                            void (*func)(ImageWindow *, gpointer),
 995                            gpointer data)
 996 {
 997         imd->func_focus_in = func;
 998         imd->data_focus_in = data;
 999 }
1000
1001 /* path, name */
1002
1003 const gchar *image_get_path(ImageWindow *imd)
1004 {
1005         if (imd->image_fd == NULL) return NULL;
1006         return imd->image_fd->path;
1007 }
1008
1009 const gchar *image_get_name(ImageWindow *imd)
1010 {
1011         if (imd->image_fd == NULL) return NULL;
1012         return imd->image_fd->name;
1013 }
1014
1015 FileData *image_get_fd(ImageWindow *imd)
1016 {
1017         return imd->image_fd;
1018 }
1019
1020 /* merely changes path string, does not change the image! */
1021 void image_set_fd(ImageWindow *imd, FileData *fd)
1022 {
1023         if (imd->auto_refresh && imd->image_fd)
1024                 file_data_unregister_real_time_monitor(imd->image_fd);
1025
1026         file_data_unref(imd->image_fd);
1027         imd->image_fd = file_data_ref(fd);
1028
1029         image_update_title(imd);
1030         image_state_set(imd, IMAGE_STATE_IMAGE);
1031
1032         if (imd->auto_refresh && imd->image_fd)
1033                 file_data_register_real_time_monitor(imd->image_fd);
1034 }
1035
1036 /* load a new image */
1037
1038 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1039 {
1040         if (imd->image_fd == fd) return;
1041
1042         image_change_real(imd, fd, NULL, NULL, zoom);
1043 }
1044
1045 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1046 {
1047         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1048 }
1049
1050 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1051 {
1052         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1053 }
1054
1055 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1056 {
1057         StereoPixbufData stereo_data = STEREO_PIXBUF_DEFAULT;
1058         /* read_exif and similar functions can actually notice that the file has changed and trigger
1059            a notification that removes the pixbuf from cache and unrefs it. Therefore we must ref it
1060            here before it is taken over by the renderer. */
1061         if (pixbuf) g_object_ref(pixbuf);
1062
1063         if (imd->image_fd)
1064                 {
1065                 if (imd->image_fd->user_orientation)
1066                         {
1067                         imd->orientation = imd->image_fd->user_orientation;
1068                         }
1069                 else if (options->image.exif_rotate_enable)
1070                         {
1071                         imd->orientation = metadata_read_int(imd->image_fd, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
1072                         imd->image_fd->exif_orientation = imd->orientation;
1073                         }
1074                 }
1075
1076         if (pixbuf)
1077                 {
1078                 stereo_data = imd->user_stereo;
1079                 if (stereo_data == STEREO_PIXBUF_DEFAULT)
1080                         {
1081                         stereo_data = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(pixbuf), "stereo_data"));
1082                         }
1083                 }
1084
1085         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1086         if (imd->cm)
1087                 {
1088                 color_man_free(imd->cm);
1089                 imd->cm = NULL;
1090                 }
1091
1092         if (lazy)
1093                 {
1094                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation, stereo_data);
1095                 }
1096         else
1097                 {
1098                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1099                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1100                 pixbuf_renderer_set_stereo_data((PixbufRenderer *)imd->pr, stereo_data);
1101                 }
1102
1103         if (pixbuf) g_object_unref(pixbuf);
1104
1105         if (imd->color_profile_enable)
1106                 {
1107                 image_post_process_color(imd, 0, FALSE); /* TODO: error handling */
1108                 }
1109
1110         if (imd->cm || imd->desaturate)
1111                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1112
1113         image_state_set(imd, IMAGE_STATE_IMAGE);
1114 }
1115
1116 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1117 {
1118         if (!cd || !info || !g_list_find(cd->list, info)) return;
1119
1120         image_change_real(imd, info->fd, cd, info, zoom);
1121 }
1122
1123 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1124 {
1125         if (collection_to_number(imd->collection) >= 0)
1126                 {
1127                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1128                         {
1129                         if (info) *info = imd->collection_info;
1130                         }
1131                 else
1132                         {
1133                         if (info) *info = NULL;
1134                         }
1135                 return imd->collection;
1136                 }
1137
1138         if (info) *info = NULL;
1139         return NULL;
1140 }
1141
1142 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1143 {
1144         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1145                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1146
1147         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1148                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1149 }
1150
1151 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1152 {
1153         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1154                 g_signal_connect(G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1155
1156         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1157                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1158
1159         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1160                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1161 }
1162
1163 /* this is more like a move function
1164  * it moves most data from source to imd
1165  */
1166 void image_move_from_image(ImageWindow *imd, ImageWindow *source)
1167 {
1168         if (imd == source) return;
1169
1170         imd->unknown = source->unknown;
1171
1172         imd->collection = source->collection;
1173         imd->collection_info = source->collection_info;
1174
1175         image_loader_free(imd->il);
1176         imd->il = NULL;
1177
1178         image_set_fd(imd, image_get_fd(source));
1179
1180
1181         if (source->il)
1182                 {
1183                 imd->il = source->il;
1184                 source->il = NULL;
1185
1186                 image_loader_sync_data(imd->il, source, imd);
1187
1188                 imd->delay_alter_type = source->delay_alter_type;
1189                 source->delay_alter_type = ALTER_NONE;
1190                 }
1191
1192         imd->color_profile_enable = source->color_profile_enable;
1193         imd->color_profile_input = source->color_profile_input;
1194         imd->color_profile_use_image = source->color_profile_use_image;
1195         color_man_free((ColorMan *)imd->cm);
1196         imd->cm = NULL;
1197
1198         file_data_unref(imd->read_ahead_fd);
1199         source->read_ahead_fd = NULL;
1200
1201         imd->orientation = source->orientation;
1202         imd->desaturate = source->desaturate;
1203
1204         imd->user_stereo = source->user_stereo;
1205
1206         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1207
1208         if (imd->cm || imd->desaturate)
1209                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1210         else
1211                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1212
1213 }
1214
1215 /* this is  a copy function
1216  * source stays unchanged
1217  */
1218 void image_copy_from_image(ImageWindow *imd, ImageWindow *source)
1219 {
1220         if (imd == source) return;
1221
1222         imd->unknown = source->unknown;
1223
1224         imd->collection = source->collection;
1225         imd->collection_info = source->collection_info;
1226
1227         image_loader_free(imd->il);
1228         imd->il = NULL;
1229
1230         image_set_fd(imd, image_get_fd(source));
1231
1232
1233         imd->color_profile_enable = source->color_profile_enable;
1234         imd->color_profile_input = source->color_profile_input;
1235         imd->color_profile_use_image = source->color_profile_use_image;
1236         color_man_free((ColorMan *)imd->cm);
1237         imd->cm = NULL;
1238         if (source->cm)
1239                 {
1240                 ColorMan *cm;
1241
1242                 imd->cm = source->cm;
1243                 source->cm = NULL;
1244
1245                 cm = (ColorMan *)imd->cm;
1246                 cm->imd = imd;
1247                 cm->func_done_data = imd;
1248                 }
1249
1250         image_loader_free(imd->read_ahead_il);
1251         imd->read_ahead_il = source->read_ahead_il;
1252         source->read_ahead_il = NULL;
1253         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1254
1255         file_data_unref(imd->read_ahead_fd);
1256         imd->read_ahead_fd = source->read_ahead_fd;
1257         source->read_ahead_fd = NULL;
1258
1259         imd->completed = source->completed;
1260         imd->state = source->state;
1261         source->state = IMAGE_STATE_NONE;
1262
1263         imd->orientation = source->orientation;
1264         imd->desaturate = source->desaturate;
1265
1266         imd->user_stereo = source->user_stereo;
1267
1268         pixbuf_renderer_copy(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1269
1270         if (imd->cm || imd->desaturate)
1271                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1272         else
1273                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1274
1275 }
1276
1277
1278 /* manipulation */
1279
1280 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1281 {
1282         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1283 }
1284
1285 void image_reload(ImageWindow *imd)
1286 {
1287         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1288
1289         image_change_complete(imd, image_zoom_get(imd));
1290 }
1291
1292 void image_scroll(ImageWindow *imd, gint x, gint y)
1293 {
1294         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1295 }
1296
1297 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1298                            gdouble x_align, gdouble y_align)
1299 {
1300         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1301 }
1302
1303 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1304 {
1305         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1306 }
1307
1308 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1309 {
1310         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1311 }
1312
1313 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1314 {
1315         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1316 }
1317
1318 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1319 {
1320         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1321 }
1322
1323 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1324 {
1325         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1326 }
1327
1328 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1329 {
1330         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1331 }
1332
1333 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1334 {
1335         PixbufRenderer *pr;
1336         gdouble zoom;
1337         gint width, height;
1338
1339         pr = (PixbufRenderer *)imd->pr;
1340
1341         if (!pixbuf_renderer_get_pixbuf(pr) ||
1342             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1343
1344         if (vertical)
1345                 {
1346                 zoom = (gdouble)pr->viewport_height / height;
1347                 }
1348         else
1349                 {
1350                 zoom = (gdouble)pr->viewport_width / width;
1351                 }
1352
1353         if (zoom < 1.0)
1354                 {
1355                 zoom = 0.0 - 1.0 / zoom;
1356                 }
1357
1358         pixbuf_renderer_zoom_set(pr, zoom);
1359 }
1360
1361 gdouble image_zoom_get(ImageWindow *imd)
1362 {
1363         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1364 }
1365
1366 gdouble image_zoom_get_real(ImageWindow *imd)
1367 {
1368         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1369 }
1370
1371 gchar *image_zoom_get_as_text(ImageWindow *imd)
1372 {
1373         gdouble zoom;
1374         gdouble scale;
1375         gdouble l = 1.0;
1376         gdouble r = 1.0;
1377         gint pl = 0;
1378         gint pr = 0;
1379         gchar *approx = " ";
1380
1381         zoom = image_zoom_get(imd);
1382         scale = image_zoom_get_real(imd);
1383
1384         if (zoom > 0.0)
1385                 {
1386                 l = zoom;
1387                 }
1388         else if (zoom < 0.0)
1389                 {
1390                 r = 0.0 - zoom;
1391                 }
1392         else if (zoom == 0.0 && scale != 0.0)
1393                 {
1394                 if (scale >= 1.0)
1395                         {
1396                         l = scale;
1397                         }
1398                 else
1399                         {
1400                         r = 1.0 / scale;
1401                         }
1402                 approx = "~";
1403                 }
1404
1405         if (rint(l) != l) pl = 1;
1406         if (rint(r) != r) pr = 1;
1407
1408         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1409 }
1410
1411 gdouble image_zoom_get_default(ImageWindow *imd)
1412 {
1413         gdouble zoom = 1.0;
1414
1415         switch (options->image.zoom_mode)
1416         {
1417         case ZOOM_RESET_ORIGINAL:
1418                 break;
1419         case ZOOM_RESET_FIT_WINDOW:
1420                 zoom = 0.0;
1421                 break;
1422         case ZOOM_RESET_NONE:
1423                 if (imd) zoom = image_zoom_get(imd);
1424                 break;
1425         }
1426
1427         return zoom;
1428 }
1429
1430 /* stereo */
1431 gint image_stereo_get(ImageWindow *imd)
1432 {
1433         return pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1434 }
1435
1436 void image_stereo_set(ImageWindow *imd, gint stereo_mode)
1437 {
1438         DEBUG_1("Setting stereo mode %04x for imd %p", stereo_mode, imd);
1439         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1440 }
1441
1442 void image_stereo_swap(ImageWindow *imd)
1443 {
1444         gint stereo_mode = pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1445         stereo_mode ^= PR_STEREO_SWAP;
1446         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1447 }
1448
1449 StereoPixbufData image_stereo_pixbuf_get(ImageWindow *imd)
1450 {
1451         return imd->user_stereo;
1452 }
1453
1454 void image_stereo_pixbuf_set(ImageWindow *imd, StereoPixbufData stereo_mode)
1455 {
1456         imd->user_stereo = stereo_mode;
1457         image_reload(imd);
1458 }
1459
1460 /* read ahead */
1461
1462 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1463 {
1464         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1465
1466         if (fd)
1467                 {
1468                 if (!file_cache_get(image_get_cache(), fd))
1469                         {
1470                         image_read_ahead_set(imd, fd);
1471                         }
1472                 }
1473         else
1474                 {
1475                 image_read_ahead_cancel(imd);
1476                 }
1477 }
1478
1479 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1480 {
1481         ImageWindow *imd = data;
1482
1483         if (!imd || !image_get_pixbuf(imd) ||
1484             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1485             !imd->image_fd || /* nothing to reload */
1486             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1487             ) return;
1488
1489         if ((type & NOTIFY_REREAD) && fd == imd->image_fd)
1490                 {
1491                 /* there is no need to reload on NOTIFY_CHANGE,
1492                    modified files should be detacted anyway and NOTIFY_REREAD should be recieved
1493                    or they are removed from the filelist completely on "move" and "delete"
1494                 */
1495                 DEBUG_1("Notify image: %s %04x", fd->path, type);
1496                 image_reload(imd);
1497                 }
1498 }
1499
1500 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1501 {
1502         if (!enable && imd->auto_refresh && imd->image_fd)
1503                 file_data_unregister_real_time_monitor(imd->image_fd);
1504
1505         if (enable && !imd->auto_refresh && imd->image_fd)
1506                 file_data_register_real_time_monitor(imd->image_fd);
1507
1508         imd->auto_refresh = enable;
1509 }
1510
1511 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1512 {
1513         imd->top_window_sync = allow_sync;
1514
1515         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1516 }
1517
1518 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1519 {
1520         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1521 }
1522
1523 void image_background_set_color_from_options(ImageWindow *imd, gboolean fullscreen)
1524 {
1525         GdkColor *color = NULL;
1526
1527         if ((options->image.use_custom_border_color && !fullscreen) ||
1528             (options->image.use_custom_border_color_in_fullscreen && fullscreen))
1529                 {
1530                 color = &options->image.border_color;
1531                 }
1532
1533         image_background_set_color(imd, color);
1534 }
1535
1536 void image_color_profile_set(ImageWindow *imd,
1537                              gint input_type,
1538                              gboolean use_image)
1539 {
1540         if (!imd) return;
1541
1542         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
1543                 {
1544                 return;
1545                 }
1546
1547         imd->color_profile_input = input_type;
1548         imd->color_profile_use_image = use_image;
1549 }
1550
1551 gboolean image_color_profile_get(ImageWindow *imd,
1552                                  gint *input_type,
1553                                  gboolean *use_image)
1554 {
1555         if (!imd) return FALSE;
1556
1557         if (input_type) *input_type = imd->color_profile_input;
1558         if (use_image) *use_image = imd->color_profile_use_image;
1559
1560         return TRUE;
1561 }
1562
1563 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1564 {
1565         if (!imd) return;
1566
1567         if (imd->color_profile_enable == enable) return;
1568
1569         imd->color_profile_enable = enable;
1570 }
1571
1572 gboolean image_color_profile_get_use(ImageWindow *imd)
1573 {
1574         if (!imd) return FALSE;
1575
1576         return imd->color_profile_enable;
1577 }
1578
1579 gboolean image_color_profile_get_status(ImageWindow *imd, gchar **image_profile, gchar **screen_profile)
1580 {
1581         ColorMan *cm;
1582         if (!imd) return FALSE;
1583
1584         cm = imd->cm;
1585         if (!cm) return FALSE;
1586         return color_man_get_status(cm, image_profile, screen_profile);
1587
1588 }
1589
1590 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1591 {
1592         if (!imd ||
1593             imd->delay_flip == delay) return;
1594
1595         imd->delay_flip = delay;
1596
1597         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1598
1599         if (!imd->delay_flip && imd->il)
1600                 {
1601                 PixbufRenderer *pr;
1602
1603                 pr = PIXBUF_RENDERER(imd->pr);
1604                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1605                 pr->pixbuf = NULL;
1606
1607                 image_load_pixbuf_ready(imd);
1608                 }
1609 }
1610
1611 void image_to_root_window(ImageWindow *imd, gboolean scaled)
1612 {
1613 #if !GTK_CHECK_VERSION(3,0,0)
1614         GdkScreen *screen;
1615         GdkWindow *rootwindow;
1616         GdkPixmap *pixmap;
1617         GdkPixbuf *pixbuf;
1618         GdkPixbuf *pb;
1619         gint width, height;
1620
1621         if (!imd) return;
1622
1623         pixbuf = image_get_pixbuf(imd);
1624         if (!pixbuf) return;
1625
1626         screen = gtk_widget_get_screen(imd->widget);
1627         rootwindow = gdk_screen_get_root_window(screen);
1628         if (gdk_window_get_visual(rootwindow) != gdk_visual_get_system()) return;
1629
1630         if (scaled)
1631                 {
1632                 width = gdk_screen_width();
1633                 height = gdk_screen_height();
1634                 }
1635         else
1636                 {
1637                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1638                 }
1639
1640         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1641
1642         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1643         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1644         gdk_window_clear(rootwindow);
1645         g_object_unref(pb);
1646         g_object_unref(pixmap);
1647
1648         gdk_flush();
1649 #endif
1650 }
1651
1652 void image_select(ImageWindow *imd, gboolean select)
1653 {
1654         if (!imd->has_frame) return;
1655
1656         if (select)
1657                 {
1658                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1659                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1660                 }
1661         else
1662                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1663 }
1664
1665 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1666 {
1667         if (!imd->has_frame) return;
1668
1669         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1670         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
1671 }
1672
1673 void image_grab_focus(ImageWindow *imd)
1674 {
1675         if (imd->has_frame)
1676                 {
1677                 gtk_widget_grab_focus(imd->frame);
1678                 }
1679         else
1680                 {
1681                 gtk_widget_grab_focus(imd->widget);
1682                 }
1683 }
1684
1685
1686 /*
1687  *-------------------------------------------------------------------
1688  * prefs sync
1689  *-------------------------------------------------------------------
1690  */
1691
1692 static void image_options_set(ImageWindow *imd)
1693 {
1694         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1695                                         "zoom_2pass", options->image.zoom_2pass,
1696                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1697                                         "scroll_reset", options->image.scroll_reset_method,
1698                                         "cache_display", options->image.tile_cache_max,
1699                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1700                                         "window_limit", options->image.limit_window_size,
1701                                         "window_limit_value", options->image.max_window_size,
1702                                         "autofit_limit", options->image.limit_autofit_size,
1703                                         "autofit_limit_value", options->image.max_autofit_size,
1704
1705                                         NULL);
1706
1707         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1708
1709         image_stereo_set(imd, options->stereo.mode);
1710         pixbuf_renderer_stereo_fixed_set((PixbufRenderer *)imd->pr,
1711                                         options->stereo.fixed_w, options->stereo.fixed_h,
1712                                         options->stereo.fixed_x1, options->stereo.fixed_y1,
1713                                         options->stereo.fixed_x2, options->stereo.fixed_y2);
1714 }
1715
1716 void image_options_sync(void)
1717 {
1718         GList *work;
1719
1720         work = image_list;
1721         while (work)
1722                 {
1723                 ImageWindow *imd;
1724
1725                 imd = work->data;
1726                 work = work->next;
1727
1728                 image_options_set(imd);
1729                 }
1730 }
1731
1732 /*
1733  *-------------------------------------------------------------------
1734  * init / destroy
1735  *-------------------------------------------------------------------
1736  */
1737
1738 static void image_free(ImageWindow *imd)
1739 {
1740         image_list = g_list_remove(image_list, imd);
1741
1742         if (imd->auto_refresh && imd->image_fd)
1743                 file_data_unregister_real_time_monitor(imd->image_fd);
1744
1745         file_data_unregister_notify_func(image_notify_cb, imd);
1746
1747         image_reset(imd);
1748
1749         image_read_ahead_cancel(imd);
1750
1751         file_data_unref(imd->image_fd);
1752         g_free(imd->title);
1753         g_free(imd->title_right);
1754         g_free(imd);
1755 }
1756
1757 static void image_destroy_cb(GtkWidget *widget, gpointer data)
1758 {
1759         ImageWindow *imd = data;
1760         image_free(imd);
1761 }
1762 #if GTK_CHECK_VERSION(3,0,0)
1763 gboolean selectable_frame_draw_cb(GtkWidget *widget, cairo_t *cr, gpointer data)
1764 {
1765         GtkAllocation allocation;
1766         gtk_widget_get_allocation(widget, &allocation);
1767         gtk_paint_flat_box(gtk_widget_get_style(widget),
1768                            cr,
1769                            gtk_widget_get_state(widget),
1770                            gtk_frame_get_shadow_type(GTK_FRAME(widget)),
1771                            widget,
1772                            NULL,
1773                            allocation.x + 3, allocation.y + 3,
1774                            allocation.width - 6, allocation.height - 6);
1775
1776         if (gtk_widget_has_focus(widget))
1777                 {
1778                 gtk_paint_focus(gtk_widget_get_style(widget), cr, GTK_STATE_ACTIVE,
1779                                 widget, "image_window",
1780                                 allocation.x, allocation.y,
1781                                 allocation.width - 1, allocation.height - 1);
1782                 }
1783         else
1784                 {
1785                 gtk_paint_shadow(gtk_widget_get_style(widget), cr, GTK_STATE_NORMAL, GTK_SHADOW_IN,
1786                                  widget, "image_window",
1787                                  allocation.x, allocation.y,
1788                                  allocation.width - 1, allocation.height - 1);
1789                 }
1790         return FALSE;
1791 }
1792
1793 #else
1794 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1795 {
1796         GtkAllocation allocation;
1797         gtk_widget_get_allocation(widget, &allocation);
1798         gtk_paint_flat_box(gtk_widget_get_style(widget),
1799                            gtk_widget_get_window(widget),
1800                            gtk_widget_get_state(widget),
1801                            gtk_frame_get_shadow_type(GTK_FRAME(widget)),
1802                            NULL,
1803                            widget,
1804                            NULL,
1805                            allocation.x + 3, allocation.y + 3,
1806                            allocation.width - 6, allocation.height - 6);
1807
1808         if (gtk_widget_has_focus(widget))
1809                 {
1810                 gtk_paint_focus(gtk_widget_get_style(widget), gtk_widget_get_window(widget), GTK_STATE_ACTIVE,
1811                                 &event->area, widget, "image_window",
1812                                 allocation.x, allocation.y,
1813                                 allocation.width - 1, allocation.height - 1);
1814                 }
1815         else
1816                 {
1817                 gtk_paint_shadow(gtk_widget_get_style(widget), gtk_widget_get_window(widget), GTK_STATE_NORMAL, GTK_SHADOW_IN,
1818                                  &event->area, widget, "image_window",
1819                                  allocation.x, allocation.y,
1820                                  allocation.width - 1, allocation.height - 1);
1821                 }
1822         return FALSE;
1823 }
1824 #endif
1825
1826
1827 void image_set_frame(ImageWindow *imd, gboolean frame)
1828 {
1829         frame = !!frame;
1830
1831         if (frame == imd->has_frame) return;
1832
1833         gtk_widget_hide(imd->pr);
1834
1835         if (frame)
1836                 {
1837                 imd->frame = gtk_frame_new(NULL);
1838                 g_object_ref(imd->pr);
1839                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1840                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1841
1842                 g_object_unref(imd->pr);
1843                 gtk_widget_set_can_focus(imd->frame, TRUE);
1844                 gtk_widget_set_app_paintable(imd->frame, TRUE);
1845
1846 #if GTK_CHECK_VERSION(3,0,0)
1847                 g_signal_connect(G_OBJECT(imd->frame), "draw",
1848                                  G_CALLBACK(selectable_frame_draw_cb), NULL);
1849 #else
1850                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1851                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1852 #endif
1853                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1854                                  G_CALLBACK(image_focus_in_cb), imd);
1855
1856                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1857                 gtk_widget_show(imd->frame);
1858                 }
1859         else
1860                 {
1861                 g_object_ref(imd->pr);
1862                 if (imd->frame)
1863                         {
1864                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1865                         gtk_widget_destroy(imd->frame);
1866                         imd->frame = NULL;
1867                         }
1868                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1869
1870                 g_object_unref(imd->pr);
1871                 }
1872
1873         gtk_widget_show(imd->pr);
1874
1875         imd->has_frame = frame;
1876 }
1877
1878 ImageWindow *image_new(gboolean frame)
1879 {
1880         ImageWindow *imd;
1881
1882         imd = g_new0(ImageWindow, 1);
1883
1884         imd->unknown = TRUE;
1885         imd->has_frame = -1; /* not initialized; for image_set_frame */
1886         imd->delay_alter_type = ALTER_NONE;
1887         imd->state = IMAGE_STATE_NONE;
1888         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1889         imd->orientation = 1;
1890
1891         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1892
1893         image_options_set(imd);
1894
1895         imd->widget = gtk_vbox_new(0, 0);
1896
1897         image_set_frame(imd, frame);
1898
1899         image_set_selectable(imd, 0);
1900
1901         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1902                          G_CALLBACK(image_click_cb), imd);
1903         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1904                          G_CALLBACK(image_scroll_notify_cb), imd);
1905
1906         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1907                          G_CALLBACK(image_scroll_cb), imd);
1908
1909         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1910                          G_CALLBACK(image_destroy_cb), imd);
1911
1912         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1913                          G_CALLBACK(image_zoom_cb), imd);
1914         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1915                          G_CALLBACK(image_render_complete_cb), imd);
1916         g_signal_connect(G_OBJECT(imd->pr), "drag",
1917                          G_CALLBACK(image_drag_cb), imd);
1918
1919         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1920
1921         image_list = g_list_append(image_list, imd);
1922
1923         return imd;
1924 }
1925 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */