src/image.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2010 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  *
   8  * This software is released under the GNU General Public License (GNU GPL).
   9  * Please read the included file COPYING for more information.
  10  * This software comes with no warranty of any kind, use at your own risk!
  11  */
  12
  13
  14 #include "main.h"
  15 #include "image.h"
  16
  17
  18 #include "collect.h"
  19 #include "color-man.h"
  20 #include "exif.h"
  21 #include "metadata.h"
  22 #include "histogram.h"
  23 #include "image-load.h"
  24 #include "image-overlay.h"
  25 #include "layout.h"
  26 #include "layout_image.h"
  27 #include "pixbuf-renderer.h"
  28 #include "pixbuf_util.h"
  29 #include "ui_fileops.h"
  30
  31 #include "filedata.h"
  32 #include "filecache.h"
  33
  34 #include <math.h>
  35
  36 static GList *image_list = NULL;
  37
  38 static void image_update_title(ImageWindow *imd);
  39 static void image_read_ahead_start(ImageWindow *imd);
  40 static void image_cache_set(ImageWindow *imd, FileData *fd);
  41
  42 /*
  43  *-------------------------------------------------------------------
  44  * 'signals'
  45  *-------------------------------------------------------------------
  46  */
  47
  48 static void image_click_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  49 {
  50         ImageWindow *imd = data;
  51
  52         if (imd->func_button)
  53                 {
  54                 imd->func_button(imd, event, imd->data_button);
  55                 }
  56 }
  57
  58 static void image_drag_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  59 {
  60         ImageWindow *imd = data;
  61         gint width, height;
  62
  63         pixbuf_renderer_get_scaled_size(pr, &width, &height);
  64
  65         if (imd->func_drag)
  66                 {
  67                 imd->func_drag(imd, event,
  68                                (gfloat)(pr->drag_last_x - event->x) / width,
  69                                (gfloat)(pr->drag_last_y - event->y) / height,
  70                                imd->data_button);
  71                 }
  72 }
  73
  74 static void image_scroll_notify_cb(PixbufRenderer *pr, gpointer data)
  75 {
  76         ImageWindow *imd = data;
  77
  78         if (imd->func_scroll_notify && pr->scale)
  79                 {
  80                 imd->func_scroll_notify(imd,
  81                                         (gint)((gdouble)pr->x_scroll / pr->scale),
  82                                         (gint)((gdouble)pr->y_scroll / pr->scale),
  83                                         (gint)((gdouble)pr->image_width - pr->vis_width / pr->scale),
  84                                         (gint)((gdouble)pr->image_height - pr->vis_height / pr->scale),
  85                                         imd->data_scroll_notify);
  86                 }
  87 }
  88
  89 static void image_update_util(ImageWindow *imd)
  90 {
  91         if (imd->func_update) imd->func_update(imd, imd->data_update);
  92 }
  93
  94
  95 static void image_complete_util(ImageWindow *imd, gboolean preload)
  96 {
  97         if (imd->il && image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il)) return;
  98
  99         DEBUG_1("%s image load completed \"%s\" (%s)", get_exec_time(),
 100                           (preload) ? (imd->read_ahead_fd ? imd->read_ahead_fd->path : "null") :
 101                                       (imd->image_fd ? imd->image_fd->path : "null"),
 102                           (preload) ? "preload" : "current");
 103
 104         if (!preload) imd->completed = TRUE;
 105         if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
 106 }
 107
 108 static void image_render_complete_cb(PixbufRenderer *pr, gpointer data)
 109 {
 110         ImageWindow *imd = data;
 111
 112         image_complete_util(imd, FALSE);
 113 }
 114
 115 static void image_state_set(ImageWindow *imd, ImageState state)
 116 {
 117         if (state == IMAGE_STATE_NONE)
 118                 {
 119                 imd->state = state;
 120                 }
 121         else
 122                 {
 123                 imd->state |= state;
 124                 }
 125         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 126 }
 127
 128 static void image_state_unset(ImageWindow *imd, ImageState state)
 129 {
 130         imd->state &= ~state;
 131         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 132 }
 133
 134 static void image_zoom_cb(PixbufRenderer *pr, gdouble zoom, gpointer data)
 135 {
 136         ImageWindow *imd = data;
 137
 138         if (imd->title_show_zoom) image_update_title(imd);
 139         image_state_set(imd, IMAGE_STATE_IMAGE);
 140         image_update_util(imd);
 141 }
 142
 143 /*
 144  *-------------------------------------------------------------------
 145  * misc
 146  *-------------------------------------------------------------------
 147  */
 148
 149 static void image_update_title(ImageWindow *imd)
 150 {
 151         gchar *title = NULL;
 152         gchar *zoom = NULL;
 153         gchar *collection = NULL;
 154
 155         if (!imd->top_window) return;
 156
 157         if (imd->collection && collection_to_number(imd->collection) >= 0)
 158                 {
 159                 const gchar *name = imd->collection->name;
 160                 if (!name) name = _("Untitled");
 161                 collection = g_strdup_printf(_(" (Collection %s)"), name);
 162                 }
 163
 164         if (imd->title_show_zoom)
 165                 {
 166                 gchar *buf = image_zoom_get_as_text(imd);
 167                 zoom = g_strconcat(" [", buf, "]", NULL);
 168                 g_free(buf);
 169                 }
 170
 171         title = g_strdup_printf("%s%s%s%s%s%s",
 172                 imd->title ? imd->title : "",
 173                 imd->image_fd ? imd->image_fd->name : "",
 174                 zoom ? zoom : "",
 175                 collection ? collection : "",
 176                 imd->image_fd ? " - " : "",
 177                 imd->title_right ? imd->title_right : "");
 178
 179         gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
 180
 181         g_free(title);
 182         g_free(zoom);
 183         g_free(collection);
 184 }
 185
 186 /*
 187  *-------------------------------------------------------------------
 188  * rotation, flip, etc.
 189  *-------------------------------------------------------------------
 190  */
 191 static gboolean image_get_x11_screen_profile(ImageWindow *imd, guchar **screen_profile, gint *screen_profile_len)
 192 {
 193         GdkScreen *screen = gtk_widget_get_screen(imd->widget);;
 194         GdkAtom    type   = GDK_NONE;
 195         gint       format = 0;
 196
 197         return (gdk_property_get(gdk_screen_get_root_window(screen),
 198                                  gdk_atom_intern ("_ICC_PROFILE", FALSE),
 199                                  GDK_NONE,
 200                                  0, 64 * 1024 * 1024, FALSE,
 201                                  &type, &format, screen_profile_len, screen_profile) && *screen_profile_len > 0);
 202 }
 203
 204 static gboolean image_post_process_color(ImageWindow *imd, gint start_row, gboolean run_in_bg)
 205 {
 206         ColorMan *cm;
 207         ColorManProfileType input_type;
 208         ColorManProfileType screen_type;
 209         const gchar *input_file = NULL;
 210         const gchar *screen_file = NULL;
 211         guchar *profile = NULL;
 212         guint profile_len;
 213         guchar *screen_profile = NULL;
 214         gint screen_profile_len;
 215         ExifData *exif;
 216
 217         if (imd->cm) return FALSE;
 218
 219         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
 220             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
 221                 {
 222                 const gchar *file = options->color_profile.input_file[imd->color_profile_input - COLOR_PROFILE_FILE];
 223
 224                 if (!is_readable_file(file)) return FALSE;
 225
 226                 input_type = COLOR_PROFILE_FILE;
 227                 input_file = file;
 228                 }
 229         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
 230                  imd->color_profile_input <  COLOR_PROFILE_FILE)
 231                 {
 232                 input_type = imd->color_profile_input;
 233                 input_file = NULL;
 234                 }
 235         else
 236                 {
 237                 return FALSE;
 238                 }
 239
 240         if (options->color_profile.use_x11_screen_profile &&
 241             image_get_x11_screen_profile(imd, &screen_profile, &screen_profile_len))
 242                 {
 243                 screen_type = COLOR_PROFILE_MEM;
 244                 DEBUG_1("Using X11 screen profile, length: %d", screen_profile_len);
 245                 }
 246         else if (options->color_profile.screen_file &&
 247             is_readable_file(options->color_profile.screen_file))
 248                 {
 249                 screen_type = COLOR_PROFILE_FILE;
 250                 screen_file = options->color_profile.screen_file;
 251                 }
 252         else
 253                 {
 254                 screen_type = COLOR_PROFILE_SRGB;
 255                 screen_file = NULL;
 256                 }
 257
 258
 259         imd->color_profile_from_image = COLOR_PROFILE_NONE;
 260
 261         exif = exif_read_fd(imd->image_fd);
 262
 263         if (exif)
 264                 {
 265                 profile = exif_get_color_profile(exif, &profile_len);
 266                 if (profile)
 267                         {
 268                         if (!imd->color_profile_use_image)
 269                                 {
 270                                 g_free(profile);
 271                                 profile = NULL;
 272                                 }
 273                         DEBUG_1("Found embedded color profile");
 274                         imd->color_profile_from_image = COLOR_PROFILE_MEM;
 275                         }
 276                 else
 277                         {
 278                         gchar *interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
 279
 280                         if (interop_index)
 281                                 {
 282                                 /* Exif 2.21 specification */
 283                                 if (!strcmp(interop_index, "R98"))
 284                                         {
 285                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 286                                         DEBUG_1("Found EXIF 2.21 ColorSpace of sRGB");
 287                                         }
 288                                 else if (!strcmp(interop_index, "R03"))
 289                                         {
 290                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 291                                         DEBUG_1("Found EXIF 2.21 ColorSpace of AdobeRGB");
 292                                         }
 293                                 g_free(interop_index);
 294                                 }
 295                         else
 296                                 {
 297                                 gint cs;
 298
 299                                 /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
 300                                 if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
 301                                 if (cs == 1)
 302                                         {
 303                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 304                                         DEBUG_1("Found EXIF 2.2 ColorSpace of sRGB");
 305                                         }
 306                                 else if (cs == 2)
 307                                         {
 308                                         /* non-standard way of specifying AdobeRGB (used by some software) */
 309                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 310                                         DEBUG_1("Found EXIF 2.2 ColorSpace of AdobeRGB");
 311                                         }
 312                                 }
 313
 314                         if (imd->color_profile_use_image && imd->color_profile_from_image != COLOR_PROFILE_NONE)
 315                                {
 316                                input_type = imd->color_profile_from_image;
 317                                input_file = NULL;
 318                                }
 319                         }
 320
 321                 exif_free_fd(imd->image_fd, exif);
 322                 }
 323
 324
 325         if (profile)
 326                 {
 327                 cm = color_man_new_embedded(run_in_bg ? imd : NULL, NULL,
 328                                             profile, profile_len,
 329                                             screen_type, screen_file, screen_profile, screen_profile_len);
 330                 g_free(profile);
 331                 }
 332         else
 333                 {
 334                 cm = color_man_new(run_in_bg ? imd : NULL, NULL,
 335                                    input_type, input_file,
 336                                    screen_type, screen_file, screen_profile, screen_profile_len);
 337                 }
 338
 339         if (cm)
 340                 {
 341                 if (start_row > 0)
 342                         {
 343                         cm->row = start_row;
 344                         cm->incremental_sync = TRUE;
 345                         }
 346
 347                 imd->cm = (gpointer)cm;
 348 #if 0
 349                 if (run_in_bg) color_man_start_bg(imd->cm, image_post_process_color_cb, imd);
 350 #endif
 351                 }
 352
 353         image_update_util(imd);
 354
 355         if (screen_profile)
 356                 {
 357                 g_free(screen_profile);
 358                 screen_profile = NULL;
 359                 }
 360
 361         return !!cm;
 362 }
 363
 364
 365 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 366 {
 367         ImageWindow *imd = (ImageWindow *)data;
 368         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
 369         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 370
 371 }
 372
 373 void image_alter_orientation(ImageWindow *imd, AlterType type)
 374 {
 375         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 376         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 377         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 378         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 379         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 380
 381
 382         if (!imd || !imd->pr || !imd->image_fd) return;
 383
 384         if (imd->orientation < 1 || imd->orientation > 8) imd->orientation = 1;
 385
 386         switch (type)
 387                 {
 388                 case ALTER_ROTATE_90:
 389                         imd->orientation = rotate_90[imd->orientation];
 390                         break;
 391                 case ALTER_ROTATE_90_CC:
 392                         imd->orientation = rotate_90_cc[imd->orientation];
 393                         break;
 394                 case ALTER_ROTATE_180:
 395                         imd->orientation = rotate_180[imd->orientation];
 396                         break;
 397                 case ALTER_MIRROR:
 398                         imd->orientation = mirror[imd->orientation];
 399                         break;
 400                 case ALTER_FLIP:
 401                         imd->orientation = flip[imd->orientation];
 402                         break;
 403                 case ALTER_NONE:
 404                         imd->orientation = imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1;
 405                         break;
 406                 default:
 407                         return;
 408                         break;
 409                 }
 410
 411         if (imd->orientation != imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1)
 412                 {
 413                 if (!options->metadata.write_orientation)
 414                         {
 415                         /* user_orientation does not work together with options->metadata.write_orientation,
 416                            use either one or the other.
 417                            we must however handle switching metadata.write_orientation on and off, therefore
 418                            we just disable referencing new fd's, not unreferencing the old ones
 419                         */
 420                         if (imd->image_fd->user_orientation == 0) file_data_ref(imd->image_fd);
 421                         imd->image_fd->user_orientation = imd->orientation;
 422                         }
 423                 }
 424         else
 425                 {
 426                 if (imd->image_fd->user_orientation != 0) file_data_unref(imd->image_fd);
 427                 imd->image_fd->user_orientation = 0;
 428                 }
 429
 430         if (options->metadata.write_orientation)
 431                 {
 432                 if (type == ALTER_NONE)
 433                         {
 434                         metadata_write_revert(imd->image_fd, ORIENTATION_KEY);
 435                         }
 436                 else
 437                         {
 438                         metadata_write_int(imd->image_fd, ORIENTATION_KEY, imd->orientation);
 439                         }
 440                 }
 441
 442         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 443 }
 444
 445 void image_set_desaturate(ImageWindow *imd, gboolean desaturate)
 446 {
 447         imd->desaturate = desaturate;
 448         if (imd->cm || imd->desaturate)
 449                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 450         else
 451                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 452         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 453 }
 454
 455 gboolean image_get_desaturate(ImageWindow *imd)
 456 {
 457         return imd->desaturate;
 458 }
 459
 460 /*
 461  *-------------------------------------------------------------------
 462  * read ahead (prebuffer)
 463  *-------------------------------------------------------------------
 464  */
 465
 466 static void image_read_ahead_cancel(ImageWindow *imd)
 467 {
 468         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 469
 470         image_loader_free(imd->read_ahead_il);
 471         imd->read_ahead_il = NULL;
 472
 473         file_data_unref(imd->read_ahead_fd);
 474         imd->read_ahead_fd = NULL;
 475 }
 476
 477 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 478 {
 479         ImageWindow *imd = data;
 480
 481         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 482
 483         if (!imd->read_ahead_fd->pixbuf)
 484                 {
 485                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 486                 if (imd->read_ahead_fd->pixbuf)
 487                         {
 488                         g_object_ref(imd->read_ahead_fd->pixbuf);
 489                         image_cache_set(imd, imd->read_ahead_fd);
 490                         }
 491                 }
 492         image_loader_free(imd->read_ahead_il);
 493         imd->read_ahead_il = NULL;
 494
 495         image_complete_util(imd, TRUE);
 496 }
 497
 498 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 499 {
 500         /* we even treat errors as success, maybe at least some of the file was ok */
 501         image_read_ahead_done_cb(il, data);
 502 }
 503
 504 static void image_read_ahead_start(ImageWindow *imd)
 505 {
 506         /* already started ? */
 507         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 508
 509         /* still loading ?, do later */
 510         if (imd->il /*|| imd->cm*/) return;
 511
 512         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 513
 514         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 515
 516         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 517
 518         g_signal_connect(G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 519         g_signal_connect(G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 520
 521         if (!image_loader_start(imd->read_ahead_il))
 522                 {
 523                 image_read_ahead_cancel(imd);
 524                 image_complete_util(imd, TRUE);
 525                 }
 526 }
 527
 528 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 529 {
 530         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 531
 532         image_read_ahead_cancel(imd);
 533
 534         imd->read_ahead_fd = file_data_ref(fd);
 535
 536         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 537
 538         image_read_ahead_start(imd);
 539 }
 540
 541 /*
 542  *-------------------------------------------------------------------
 543  * post buffering
 544  *-------------------------------------------------------------------
 545  */
 546
 547 static void image_cache_release_cb(FileData *fd)
 548 {
 549         g_object_unref(fd->pixbuf);
 550         fd->pixbuf = NULL;
 551 }
 552
 553 static FileCacheData *image_get_cache(void)
 554 {
 555         static FileCacheData *cache = NULL;
 556         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 557         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 558         return cache;
 559 }
 560
 561 static void image_cache_set(ImageWindow *imd, FileData *fd)
 562 {
 563         g_assert(fd->pixbuf);
 564
 565         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 566         file_data_send_notification(fd, NOTIFY_PIXBUF); /* to update histogram */
 567 }
 568
 569 static gint image_cache_get(ImageWindow *imd)
 570 {
 571         gint success;
 572
 573         success = file_cache_get(image_get_cache(), imd->image_fd);
 574         if (success)
 575                 {
 576                 g_assert(imd->image_fd->pixbuf);
 577                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 578                 }
 579
 580 //      file_cache_dump(image_get_cache());
 581         return success;
 582 }
 583
 584 /*
 585  *-------------------------------------------------------------------
 586  * loading
 587  *-------------------------------------------------------------------
 588  */
 589
 590 static void image_load_pixbuf_ready(ImageWindow *imd)
 591 {
 592         if (image_get_pixbuf(imd) || !imd->il) return;
 593
 594         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 595 }
 596
 597 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 598 {
 599         ImageWindow *imd = data;
 600         PixbufRenderer *pr;
 601
 602         pr = (PixbufRenderer *)imd->pr;
 603
 604         if (imd->delay_flip &&
 605             pr->pixbuf != image_loader_get_pixbuf(il))
 606                 {
 607                 return;
 608                 }
 609
 610         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 611
 612         pixbuf_renderer_area_changed(pr, x, y, w, h);
 613 }
 614
 615 static void image_load_done_cb(ImageLoader *il, gpointer data)
 616 {
 617         ImageWindow *imd = data;
 618
 619         DEBUG_1("%s image done", get_exec_time());
 620
 621         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 622                 {
 623                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
 624                 image_cache_set(imd, imd->image_fd);
 625                 }
 626         /* call the callback triggered by image_state after fd->pixbuf is set */
 627         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 628         image_state_unset(imd, IMAGE_STATE_LOADING);
 629
 630         if (!image_loader_get_pixbuf(imd->il))
 631                 {
 632                 GdkPixbuf *pixbuf;
 633
 634                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 635                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 636                 g_object_unref(pixbuf);
 637
 638                 imd->unknown = TRUE;
 639                 }
 640         else if (imd->delay_flip &&
 641             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 642                 {
 643                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 644                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 645                 }
 646
 647         image_loader_free(imd->il);
 648         imd->il = NULL;
 649
 650 //      image_post_process(imd, TRUE);
 651
 652         image_read_ahead_start(imd);
 653 }
 654
 655 static void image_load_error_cb(ImageLoader *il, gpointer data)
 656 {
 657         DEBUG_1("%s image error", get_exec_time());
 658
 659         /* even on error handle it like it was done,
 660          * since we have a pixbuf with _something_ */
 661
 662         image_load_done_cb(il, data);
 663 }
 664
 665 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
 666 {
 667         g_assert(imd->il);
 668         if (override_old_signals)
 669                 {
 670                 /* override the old signals */
 671                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 672                 }
 673
 674         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 675         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 676         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 677 }
 678
 679 /* this read ahead is located here merely for the callbacks, above */
 680
 681 static gboolean image_read_ahead_check(ImageWindow *imd)
 682 {
 683         if (!imd->read_ahead_fd) return FALSE;
 684         if (imd->il) return FALSE;
 685
 686         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 687                 {
 688                 image_read_ahead_cancel(imd);
 689                 return FALSE;
 690                 }
 691
 692         if (imd->read_ahead_il)
 693                 {
 694                 imd->il = imd->read_ahead_il;
 695                 imd->read_ahead_il = NULL;
 696
 697                 image_load_set_signals(imd, TRUE);
 698
 699                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 700                 image_state_set(imd, IMAGE_STATE_LOADING);
 701
 702                 if (!imd->delay_flip)
 703                         {
 704                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 705                         }
 706
 707                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 708
 709                 file_data_unref(imd->read_ahead_fd);
 710                 imd->read_ahead_fd = NULL;
 711                 return TRUE;
 712                 }
 713         else if (imd->read_ahead_fd->pixbuf)
 714                 {
 715                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
 716
 717                 file_data_unref(imd->read_ahead_fd);
 718                 imd->read_ahead_fd = NULL;
 719
 720 //              image_post_process(imd, FALSE);
 721                 return TRUE;
 722                 }
 723
 724         image_read_ahead_cancel(imd);
 725         return FALSE;
 726 }
 727
 728 static gboolean image_load_begin(ImageWindow *imd, FileData *fd)
 729 {
 730         DEBUG_1("%s image begin", get_exec_time());
 731
 732         if (imd->il) return FALSE;
 733
 734         imd->completed = FALSE;
 735         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 736
 737         if (image_cache_get(imd))
 738                 {
 739                 DEBUG_1("from cache: %s", imd->image_fd->path);
 740                 return TRUE;
 741                 }
 742
 743         if (image_read_ahead_check(imd))
 744                 {
 745                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 746                 return TRUE;
 747                 }
 748
 749         if (!imd->delay_flip && image_get_pixbuf(imd))
 750                 {
 751                 PixbufRenderer *pr;
 752
 753                 pr = PIXBUF_RENDERER(imd->pr);
 754                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 755                 pr->pixbuf = NULL;
 756                 }
 757
 758         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 759
 760         imd->il = image_loader_new(fd);
 761
 762         image_load_set_signals(imd, FALSE);
 763
 764         if (!image_loader_start(imd->il))
 765                 {
 766                 DEBUG_1("image start error");
 767
 768                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 769
 770                 image_loader_free(imd->il);
 771                 imd->il = NULL;
 772
 773                 image_complete_util(imd, FALSE);
 774
 775                 return FALSE;
 776                 }
 777
 778         image_state_set(imd, IMAGE_STATE_LOADING);
 779
 780 /*
 781         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
 782                 {
 783                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 784                 }
 785 */
 786         return TRUE;
 787 }
 788
 789 static void image_reset(ImageWindow *imd)
 790 {
 791         /* stops anything currently being done */
 792
 793         DEBUG_1("%s image reset", get_exec_time());
 794
 795         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 796
 797         image_loader_free(imd->il);
 798         imd->il = NULL;
 799
 800         color_man_free((ColorMan *)imd->cm);
 801         imd->cm = NULL;
 802
 803         imd->delay_alter_type = ALTER_NONE;
 804
 805         image_state_set(imd, IMAGE_STATE_NONE);
 806 }
 807
 808 /*
 809  *-------------------------------------------------------------------
 810  * image changer
 811  *-------------------------------------------------------------------
 812  */
 813
 814 static void image_change_complete(ImageWindow *imd, gdouble zoom)
 815 {
 816         image_reset(imd);
 817         imd->unknown = TRUE;
 818
 819         if (!imd->image_fd)
 820                 {
 821                 image_change_pixbuf(imd, NULL, zoom, FALSE);
 822                 }
 823         else
 824                 {
 825
 826                 if (is_readable_file(imd->image_fd->path))
 827                         {
 828                         PixbufRenderer *pr;
 829
 830                         pr = PIXBUF_RENDERER(imd->pr);
 831                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
 832
 833                         if (image_load_begin(imd, imd->image_fd))
 834                                 {
 835                                 imd->unknown = FALSE;
 836                                 }
 837                         }
 838
 839                 if (imd->unknown == TRUE)
 840                         {
 841                         GdkPixbuf *pixbuf;
 842
 843                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 844                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 845                         g_object_unref(pixbuf);
 846                         }
 847                 }
 848
 849         image_update_util(imd);
 850 }
 851
 852 static void image_change_real(ImageWindow *imd, FileData *fd,
 853                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 854 {
 855
 856         imd->collection = cd;
 857         imd->collection_info = info;
 858
 859         if (imd->auto_refresh && imd->image_fd)
 860                 file_data_unregister_real_time_monitor(imd->image_fd);
 861
 862         file_data_unref(imd->image_fd);
 863         imd->image_fd = file_data_ref(fd);
 864
 865
 866         image_change_complete(imd, zoom);
 867
 868         image_update_title(imd);
 869         image_state_set(imd, IMAGE_STATE_IMAGE);
 870
 871         if (imd->auto_refresh && imd->image_fd)
 872                 file_data_register_real_time_monitor(imd->image_fd);
 873 }
 874
 875 /*
 876  *-------------------------------------------------------------------
 877  * focus stuff
 878  *-------------------------------------------------------------------
 879  */
 880
 881 static void image_focus_paint(ImageWindow *imd, gboolean has_focus, GdkRectangle *area)
 882 {
 883         GtkWidget *widget;
 884
 885         widget = imd->widget;
 886         if (!widget->window) return;
 887
 888         if (has_focus)
 889                 {
 890                 gtk_paint_focus(widget->style, widget->window, GTK_STATE_ACTIVE,
 891                                 area, widget, "image_window",
 892                                 widget->allocation.x, widget->allocation.y,
 893                                 widget->allocation.width - 1, widget->allocation.height - 1);
 894                 }
 895         else
 896                 {
 897                 gtk_paint_shadow(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
 898                                  area, widget, "image_window",
 899                                  widget->allocation.x, widget->allocation.y,
 900                                  widget->allocation.width - 1, widget->allocation.height - 1);
 901                 }
 902 }
 903
 904 static gboolean image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 905 {
 906         ImageWindow *imd = data;
 907
 908 #if GTK_CHECK_VERSION(2,20,0)
 909         image_focus_paint(imd, gtk_widget_has_focus(widget), &event->area);
 910 #else
 911         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 912 #endif
 913         return TRUE;
 914 }
 915
 916 static gboolean image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 917 {
 918         ImageWindow *imd = data;
 919
 920         GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 921         image_focus_paint(imd, TRUE, NULL);
 922
 923         if (imd->func_focus_in)
 924                 {
 925                 imd->func_focus_in(imd, imd->data_focus_in);
 926                 }
 927
 928         return TRUE;
 929 }
 930
 931 static gboolean image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 932 {
 933         ImageWindow *imd = data;
 934
 935         GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 936         image_focus_paint(imd, FALSE, NULL);
 937
 938         return TRUE;
 939 }
 940
 941 static gboolean image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 942 {
 943         ImageWindow *imd = data;
 944
 945         if (imd->func_scroll &&
 946             event && event->type == GDK_SCROLL)
 947                 {
 948                 imd->func_scroll(imd, event, imd->data_scroll);
 949                 return TRUE;
 950                 }
 951
 952         return FALSE;
 953 }
 954
 955 /*
 956  *-------------------------------------------------------------------
 957  * public interface
 958  *-------------------------------------------------------------------
 959  */
 960
 961 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 962                          const gchar *title, const gchar *title_right, gboolean show_zoom)
 963 {
 964         imd->top_window = window;
 965         g_free(imd->title);
 966         imd->title = g_strdup(title);
 967         g_free(imd->title_right);
 968         imd->title_right = g_strdup(title_right);
 969         imd->title_show_zoom = show_zoom;
 970
 971         if (!options->image.fit_window_to_image) window = NULL;
 972
 973         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 974
 975         image_update_title(imd);
 976 }
 977
 978 void image_set_update_func(ImageWindow *imd,
 979                            void (*func)(ImageWindow *imd, gpointer data),
 980                            gpointer data)
 981 {
 982         imd->func_update = func;
 983         imd->data_update = data;
 984 }
 985
 986 void image_set_complete_func(ImageWindow *imd,
 987                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
 988                              gpointer data)
 989 {
 990         imd->func_complete = func;
 991         imd->data_complete = data;
 992 }
 993
 994 void image_set_state_func(ImageWindow *imd,
 995                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 996                         gpointer data)
 997 {
 998         imd->func_state = func;
 999         imd->data_state = data;
1000 }
1001
1002
1003 void image_set_button_func(ImageWindow *imd,
1004                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
1005                            gpointer data)
1006 {
1007         imd->func_button = func;
1008         imd->data_button = data;
1009 }
1010
1011 void image_set_drag_func(ImageWindow *imd,
1012                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
1013                            gpointer data)
1014 {
1015         imd->func_drag = func;
1016         imd->data_drag = data;
1017 }
1018
1019 void image_set_scroll_func(ImageWindow *imd,
1020                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
1021                            gpointer data)
1022 {
1023         imd->func_scroll = func;
1024         imd->data_scroll = data;
1025 }
1026
1027 void image_set_scroll_notify_func(ImageWindow *imd,
1028                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
1029                                   gpointer data)
1030 {
1031         imd->func_scroll_notify = func;
1032         imd->data_scroll_notify = data;
1033 }
1034
1035 void image_set_focus_in_func(ImageWindow *imd,
1036                            void (*func)(ImageWindow *, gpointer),
1037                            gpointer data)
1038 {
1039         imd->func_focus_in = func;
1040         imd->data_focus_in = data;
1041 }
1042
1043 /* path, name */
1044
1045 const gchar *image_get_path(ImageWindow *imd)
1046 {
1047         if (imd->image_fd == NULL) return NULL;
1048         return imd->image_fd->path;
1049 }
1050
1051 const gchar *image_get_name(ImageWindow *imd)
1052 {
1053         if (imd->image_fd == NULL) return NULL;
1054         return imd->image_fd->name;
1055 }
1056
1057 FileData *image_get_fd(ImageWindow *imd)
1058 {
1059         return imd->image_fd;
1060 }
1061
1062 /* merely changes path string, does not change the image! */
1063 void image_set_fd(ImageWindow *imd, FileData *fd)
1064 {
1065         if (imd->auto_refresh && imd->image_fd)
1066                 file_data_unregister_real_time_monitor(imd->image_fd);
1067
1068         file_data_unref(imd->image_fd);
1069         imd->image_fd = file_data_ref(fd);
1070
1071         image_update_title(imd);
1072         image_state_set(imd, IMAGE_STATE_IMAGE);
1073
1074         if (imd->auto_refresh && imd->image_fd)
1075                 file_data_register_real_time_monitor(imd->image_fd);
1076 }
1077
1078 /* load a new image */
1079
1080 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1081 {
1082         if (imd->image_fd == fd) return;
1083
1084         image_change_real(imd, fd, NULL, NULL, zoom);
1085 }
1086
1087 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1088 {
1089         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1090 }
1091
1092 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1093 {
1094         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1095 }
1096
1097 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1098 {
1099
1100         /* read_exif and similar functions can actually notice that the file has changed and trigger
1101            a notification that removes the pixbuf from cache and unrefs it. Therefore we must ref it
1102            here before it is taken over by the renderer. */
1103         if (pixbuf) g_object_ref(pixbuf);
1104
1105         if (imd->image_fd)
1106                 {
1107                 if (imd->image_fd->user_orientation)
1108                         {
1109                         imd->orientation = imd->image_fd->user_orientation;
1110                         }
1111                 else if (options->image.exif_rotate_enable)
1112                         {
1113                         imd->orientation = metadata_read_int(imd->image_fd, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
1114                         imd->image_fd->exif_orientation = imd->orientation;
1115                         }
1116                 }
1117
1118         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1119         if (imd->cm)
1120                 {
1121                 color_man_free(imd->cm);
1122                 imd->cm = NULL;
1123                 }
1124
1125         if (lazy)
1126                 {
1127                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation);
1128                 }
1129         else
1130                 {
1131                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1132                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1133                 }
1134
1135         if (pixbuf) g_object_unref(pixbuf);
1136
1137         if (imd->color_profile_enable)
1138                 {
1139                 image_post_process_color(imd, 0, FALSE); /* TODO: error handling */
1140                 }
1141
1142         if (imd->cm || imd->desaturate)
1143                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1144
1145         image_state_set(imd, IMAGE_STATE_IMAGE);
1146 }
1147
1148 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1149 {
1150         if (!cd || !info || !g_list_find(cd->list, info)) return;
1151
1152         image_change_real(imd, info->fd, cd, info, zoom);
1153 }
1154
1155 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1156 {
1157         if (collection_to_number(imd->collection) >= 0)
1158                 {
1159                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1160                         {
1161                         if (info) *info = imd->collection_info;
1162                         }
1163                 else
1164                         {
1165                         if (info) *info = NULL;
1166                         }
1167                 return imd->collection;
1168                 }
1169
1170         if (info) *info = NULL;
1171         return NULL;
1172 }
1173
1174 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1175 {
1176         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1177                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1178
1179         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1180                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1181 }
1182
1183 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1184 {
1185         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1186                 g_signal_connect(G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1187
1188         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1189                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1190
1191         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1192                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1193 }
1194
1195 /* this is more like a move function
1196  * it moves most data from source to imd
1197  */
1198 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1199 {
1200         if (imd == source) return;
1201
1202         imd->unknown = source->unknown;
1203
1204         imd->collection = source->collection;
1205         imd->collection_info = source->collection_info;
1206
1207         image_loader_free(imd->il);
1208         imd->il = NULL;
1209
1210         image_set_fd(imd, image_get_fd(source));
1211
1212
1213         if (source->il)
1214                 {
1215                 imd->il = source->il;
1216                 source->il = NULL;
1217
1218                 image_loader_sync_data(imd->il, source, imd);
1219
1220                 imd->delay_alter_type = source->delay_alter_type;
1221                 source->delay_alter_type = ALTER_NONE;
1222                 }
1223
1224         imd->color_profile_enable = source->color_profile_enable;
1225         imd->color_profile_input = source->color_profile_input;
1226         imd->color_profile_use_image = source->color_profile_use_image;
1227         color_man_free((ColorMan *)imd->cm);
1228         imd->cm = NULL;
1229         if (source->cm)
1230                 {
1231                 ColorMan *cm;
1232
1233                 imd->cm = source->cm;
1234                 source->cm = NULL;
1235
1236                 cm = (ColorMan *)imd->cm;
1237                 cm->imd = imd;
1238                 cm->func_done_data = imd;
1239                 }
1240
1241         image_loader_free(imd->read_ahead_il);
1242         imd->read_ahead_il = source->read_ahead_il;
1243         source->read_ahead_il = NULL;
1244         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1245
1246         file_data_unref(imd->read_ahead_fd);
1247         imd->read_ahead_fd = source->read_ahead_fd;
1248         source->read_ahead_fd = NULL;
1249
1250         imd->completed = source->completed;
1251         imd->state = source->state;
1252         source->state = IMAGE_STATE_NONE;
1253
1254         imd->orientation = source->orientation;
1255         imd->desaturate = source->desaturate;
1256
1257         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1258
1259         if (imd->cm || imd->desaturate)
1260                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1261         else
1262                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1263
1264 }
1265
1266 /* manipulation */
1267
1268 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1269 {
1270         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1271 }
1272
1273 void image_reload(ImageWindow *imd)
1274 {
1275         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1276
1277         image_change_complete(imd, image_zoom_get(imd));
1278 }
1279
1280 void image_scroll(ImageWindow *imd, gint x, gint y)
1281 {
1282         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1283 }
1284
1285 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1286                            gdouble x_align, gdouble y_align)
1287 {
1288         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1289 }
1290
1291 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1292 {
1293         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1294 }
1295
1296 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1297 {
1298         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1299 }
1300
1301 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1302 {
1303         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1304 }
1305
1306 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1307 {
1308         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1309 }
1310
1311 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1312 {
1313         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1314 }
1315
1316 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1317 {
1318         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1319 }
1320
1321 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1322 {
1323         PixbufRenderer *pr;
1324         gdouble zoom;
1325         gint width, height;
1326
1327         pr = (PixbufRenderer *)imd->pr;
1328
1329         if (!pixbuf_renderer_get_pixbuf(pr) ||
1330             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1331
1332         if (vertical)
1333                 {
1334                 zoom = (gdouble)pr->window_height / height;
1335                 }
1336         else
1337                 {
1338                 zoom = (gdouble)pr->window_width / width;
1339                 }
1340
1341         if (zoom < 1.0)
1342                 {
1343                 zoom = 0.0 - 1.0 / zoom;
1344                 }
1345
1346         pixbuf_renderer_zoom_set(pr, zoom);
1347 }
1348
1349 gdouble image_zoom_get(ImageWindow *imd)
1350 {
1351         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1352 }
1353
1354 gdouble image_zoom_get_real(ImageWindow *imd)
1355 {
1356         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1357 }
1358
1359 gchar *image_zoom_get_as_text(ImageWindow *imd)
1360 {
1361         gdouble zoom;
1362         gdouble scale;
1363         gdouble l = 1.0;
1364         gdouble r = 1.0;
1365         gint pl = 0;
1366         gint pr = 0;
1367         gchar *approx = " ";
1368
1369         zoom = image_zoom_get(imd);
1370         scale = image_zoom_get_real(imd);
1371
1372         if (zoom > 0.0)
1373                 {
1374                 l = zoom;
1375                 }
1376         else if (zoom < 0.0)
1377                 {
1378                 r = 0.0 - zoom;
1379                 }
1380         else if (zoom == 0.0 && scale != 0.0)
1381                 {
1382                 if (scale >= 1.0)
1383                         {
1384                         l = scale;
1385                         }
1386                 else
1387                         {
1388                         r = 1.0 / scale;
1389                         }
1390                 approx = "~";
1391                 }
1392
1393         if (rint(l) != l) pl = 1;
1394         if (rint(r) != r) pr = 1;
1395
1396         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1397 }
1398
1399 gdouble image_zoom_get_default(ImageWindow *imd)
1400 {
1401         gdouble zoom = 1.0;
1402
1403         switch (options->image.zoom_mode)
1404         {
1405         case ZOOM_RESET_ORIGINAL:
1406                 break;
1407         case ZOOM_RESET_FIT_WINDOW:
1408                 zoom = 0.0;
1409                 break;
1410         case ZOOM_RESET_NONE:
1411                 if (imd) zoom = image_zoom_get(imd);
1412                 break;
1413         }
1414
1415         return zoom;
1416 }
1417
1418 /* read ahead */
1419
1420 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1421 {
1422         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1423
1424         if (fd)
1425                 {
1426                 if (!file_cache_get(image_get_cache(), fd))
1427                         {
1428                         image_read_ahead_set(imd, fd);
1429                         }
1430                 }
1431         else
1432                 {
1433                 image_read_ahead_cancel(imd);
1434                 }
1435 }
1436
1437 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1438 {
1439         ImageWindow *imd = data;
1440
1441         if (!imd || !image_get_pixbuf(imd) ||
1442             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1443             !imd->image_fd || /* nothing to reload */
1444             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1445             ) return;
1446
1447         if ((type & NOTIFY_REREAD) && fd == imd->image_fd)
1448                 {
1449                 /* there is no need to reload on NOTIFY_CHANGE,
1450                    modified files should be detacted anyway and NOTIFY_REREAD should be recieved
1451                    or they are removed from the filelist completely on "move" and "delete"
1452                 */
1453                 DEBUG_1("Notify image: %s %04x", fd->path, type);
1454                 image_reload(imd);
1455                 }
1456 }
1457
1458 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1459 {
1460         if (!enable && imd->auto_refresh && imd->image_fd)
1461                 file_data_unregister_real_time_monitor(imd->image_fd);
1462
1463         if (enable && !imd->auto_refresh && imd->image_fd)
1464                 file_data_register_real_time_monitor(imd->image_fd);
1465
1466         imd->auto_refresh = enable;
1467 }
1468
1469 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1470 {
1471         imd->top_window_sync = allow_sync;
1472
1473         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1474 }
1475
1476 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1477 {
1478         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1479 }
1480
1481 void image_background_set_color_from_options(ImageWindow *imd, gboolean fullscreen)
1482 {
1483         GdkColor *color = NULL;
1484
1485         if ((options->image.use_custom_border_color && !fullscreen) ||
1486             (options->image.use_custom_border_color_in_fullscreen && fullscreen))
1487                 {
1488                 color = &options->image.border_color;
1489                 }
1490
1491         image_background_set_color(imd, color);
1492 }
1493
1494 void image_color_profile_set(ImageWindow *imd,
1495                              gint input_type,
1496                              gboolean use_image)
1497 {
1498         if (!imd) return;
1499
1500         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
1501                 {
1502                 return;
1503                 }
1504
1505         imd->color_profile_input = input_type;
1506         imd->color_profile_use_image = use_image;
1507 }
1508
1509 gboolean image_color_profile_get(ImageWindow *imd,
1510                                  gint *input_type,
1511                                  gboolean *use_image)
1512 {
1513         if (!imd) return FALSE;
1514
1515         if (input_type) *input_type = imd->color_profile_input;
1516         if (use_image) *use_image = imd->color_profile_use_image;
1517
1518         return TRUE;
1519 }
1520
1521 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1522 {
1523         if (!imd) return;
1524
1525         if (imd->color_profile_enable == enable) return;
1526
1527         imd->color_profile_enable = enable;
1528 }
1529
1530 gboolean image_color_profile_get_use(ImageWindow *imd)
1531 {
1532         if (!imd) return FALSE;
1533
1534         return imd->color_profile_enable;
1535 }
1536
1537 gboolean image_color_profile_get_status(ImageWindow *imd, gchar **image_profile, gchar **screen_profile)
1538 {
1539         ColorMan *cm;
1540         if (!imd) return FALSE;
1541
1542         cm = imd->cm;
1543         if (!cm) return FALSE;
1544         return color_man_get_status(cm, image_profile, screen_profile);
1545
1546 }
1547
1548 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1549 {
1550         if (!imd ||
1551             imd->delay_flip == delay) return;
1552
1553         imd->delay_flip = delay;
1554
1555         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1556
1557         if (!imd->delay_flip && imd->il)
1558                 {
1559                 PixbufRenderer *pr;
1560
1561                 pr = PIXBUF_RENDERER(imd->pr);
1562                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1563                 pr->pixbuf = NULL;
1564
1565                 image_load_pixbuf_ready(imd);
1566                 }
1567 }
1568
1569 void image_to_root_window(ImageWindow *imd, gboolean scaled)
1570 {
1571         GdkScreen *screen;
1572         GdkWindow *rootwindow;
1573         GdkPixmap *pixmap;
1574         GdkPixbuf *pixbuf;
1575         GdkPixbuf *pb;
1576         gint width, height;
1577
1578         if (!imd) return;
1579
1580         pixbuf = image_get_pixbuf(imd);
1581         if (!pixbuf) return;
1582
1583         screen = gtk_widget_get_screen(imd->widget);
1584         rootwindow = gdk_screen_get_root_window(screen);
1585         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1586
1587         if (scaled)
1588                 {
1589                 width = gdk_screen_width();
1590                 height = gdk_screen_height();
1591                 }
1592         else
1593                 {
1594                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1595                 }
1596
1597         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1598
1599         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1600         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1601         gdk_window_clear(rootwindow);
1602         g_object_unref(pb);
1603         g_object_unref(pixmap);
1604
1605         gdk_flush();
1606 }
1607
1608 void image_select(ImageWindow *imd, gboolean select)
1609 {
1610         if (!imd->has_frame) return;
1611
1612         if (select)
1613                 {
1614                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1615                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1616                 }
1617         else
1618                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1619 }
1620
1621 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1622 {
1623         if (!imd->has_frame) return;
1624
1625         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1626         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
1627 }
1628
1629 void image_grab_focus(ImageWindow *imd)
1630 {
1631         if (imd->has_frame)
1632                 {
1633                 gtk_widget_grab_focus(imd->frame);
1634                 }
1635         else
1636                 {
1637                 gtk_widget_grab_focus(imd->widget);
1638                 }
1639 }
1640
1641
1642 /*
1643  *-------------------------------------------------------------------
1644  * prefs sync
1645  *-------------------------------------------------------------------
1646  */
1647
1648 static void image_options_set(ImageWindow *imd)
1649 {
1650         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1651                                         "zoom_2pass", options->image.zoom_2pass,
1652                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1653                                         "dither_quality", options->image.dither_quality,
1654                                         "scroll_reset", options->image.scroll_reset_method,
1655                                         "cache_display", options->image.tile_cache_max,
1656                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1657                                         "window_limit", options->image.limit_window_size,
1658                                         "window_limit_value", options->image.max_window_size,
1659                                         "autofit_limit", options->image.limit_autofit_size,
1660                                         "autofit_limit_value", options->image.max_autofit_size,
1661
1662                                         NULL);
1663
1664         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1665 }
1666
1667 void image_options_sync(void)
1668 {
1669         GList *work;
1670
1671         work = image_list;
1672         while (work)
1673                 {
1674                 ImageWindow *imd;
1675
1676                 imd = work->data;
1677                 work = work->next;
1678
1679                 image_options_set(imd);
1680                 }
1681 }
1682
1683 /*
1684  *-------------------------------------------------------------------
1685  * init / destroy
1686  *-------------------------------------------------------------------
1687  */
1688
1689 static void image_free(ImageWindow *imd)
1690 {
1691         image_list = g_list_remove(image_list, imd);
1692
1693         if (imd->auto_refresh && imd->image_fd)
1694                 file_data_unregister_real_time_monitor(imd->image_fd);
1695
1696         file_data_unregister_notify_func(image_notify_cb, imd);
1697
1698         image_reset(imd);
1699
1700         image_read_ahead_cancel(imd);
1701
1702         file_data_unref(imd->image_fd);
1703         g_free(imd->title);
1704         g_free(imd->title_right);
1705         g_free(imd);
1706 }
1707
1708 static void image_destroy_cb(GtkObject *widget, gpointer data)
1709 {
1710         ImageWindow *imd = data;
1711         image_free(imd);
1712 }
1713
1714 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1715 {
1716         gtk_paint_flat_box(widget->style,
1717                            widget->window,
1718                            widget->state,
1719                            (GTK_FRAME(widget))->shadow_type,
1720                            NULL,
1721                            widget,
1722                            NULL,
1723                            widget->allocation.x + 3, widget->allocation.y + 3,
1724                            widget->allocation.width - 6, widget->allocation.height - 6);
1725
1726
1727         return FALSE;
1728 }
1729
1730
1731 void image_set_frame(ImageWindow *imd, gboolean frame)
1732 {
1733         frame = !!frame;
1734
1735         if (frame == imd->has_frame) return;
1736
1737         gtk_widget_hide(imd->pr);
1738
1739         if (frame)
1740                 {
1741                 imd->frame = gtk_frame_new(NULL);
1742 #if GTK_CHECK_VERSION(2,12,0)
1743                 g_object_ref(imd->pr);
1744 #else
1745                 gtk_widget_ref(imd->pr);
1746 #endif
1747                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1748                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1749
1750 #if GTK_CHECK_VERSION(2,12,0)
1751                 g_object_unref(imd->pr);
1752 #else
1753                 gtk_widget_unref(imd->pr);
1754 #endif
1755                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1756                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1757
1758                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1759                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1760                                  G_CALLBACK(image_focus_in_cb), imd);
1761                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1762                                  G_CALLBACK(image_focus_out_cb), imd);
1763
1764                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1765                                        G_CALLBACK(image_focus_expose), imd);
1766
1767 #if GTK_CHECK_VERSION(2,14,0)
1768                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1769 #else
1770                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1771 #endif
1772                 gtk_widget_show(imd->frame);
1773                 }
1774         else
1775                 {
1776 #if GTK_CHECK_VERSION(2,12,0)
1777                 g_object_ref(imd->pr);
1778 #else
1779                 gtk_widget_ref(imd->pr);
1780 #endif
1781                 if (imd->frame)
1782                         {
1783                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1784                         gtk_widget_destroy(imd->frame);
1785                         imd->frame = NULL;
1786                         }
1787 #if GTK_CHECK_VERSION(2,14,0)
1788                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1789 #else
1790                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1791 #endif
1792
1793 #if GTK_CHECK_VERSION(2,12,0)
1794                 g_object_unref(imd->pr);
1795 #else
1796                 gtk_widget_unref(imd->pr);
1797 #endif
1798                 }
1799
1800         gtk_widget_show(imd->pr);
1801
1802         imd->has_frame = frame;
1803 }
1804
1805 ImageWindow *image_new(gboolean frame)
1806 {
1807         ImageWindow *imd;
1808
1809         imd = g_new0(ImageWindow, 1);
1810
1811         imd->unknown = TRUE;
1812         imd->has_frame = -1; /* not initialized; for image_set_frame */
1813         imd->delay_alter_type = ALTER_NONE;
1814         imd->state = IMAGE_STATE_NONE;
1815         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1816         imd->orientation = 1;
1817
1818         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1819
1820         image_options_set(imd);
1821
1822         imd->widget = gtk_vbox_new(0, 0);
1823
1824         image_set_frame(imd, frame);
1825
1826         image_set_selectable(imd, 0);
1827
1828         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1829                          G_CALLBACK(image_click_cb), imd);
1830         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1831                          G_CALLBACK(image_scroll_notify_cb), imd);
1832
1833         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1834                          G_CALLBACK(image_scroll_cb), imd);
1835
1836         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1837                          G_CALLBACK(image_destroy_cb), imd);
1838
1839         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1840                          G_CALLBACK(image_zoom_cb), imd);
1841         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1842                          G_CALLBACK(image_render_complete_cb), imd);
1843         g_signal_connect(G_OBJECT(imd->pr), "drag",
1844                          G_CALLBACK(image_drag_cb), imd);
1845
1846         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1847
1848         image_list = g_list_append(image_list, imd);
1849
1850         return imd;
1851 }
1852 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */