src/image.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2009 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  *
   8  * This software is released under the GNU General Public License (GNU GPL).
   9  * Please read the included file COPYING for more information.
  10  * This software comes with no warranty of any kind, use at your own risk!
  11  */
  12
  13
  14 #include "main.h"
  15 #include "image.h"
  16
  17
  18 #include "collect.h"
  19 #include "color-man.h"
  20 #include "exif.h"
  21 #include "metadata.h"
  22 #include "histogram.h"
  23 #include "image-load.h"
  24 #include "image-overlay.h"
  25 #include "layout.h"
  26 #include "layout_image.h"
  27 #include "pixbuf-renderer.h"
  28 #include "pixbuf_util.h"
  29 #include "ui_fileops.h"
  30
  31 #include "filedata.h"
  32 #include "filecache.h"
  33
  34 #include <math.h>
  35
  36 static GList *image_list = NULL;
  37
  38 static void image_update_title(ImageWindow *imd);
  39 static void image_read_ahead_start(ImageWindow *imd);
  40 static void image_cache_set(ImageWindow *imd, FileData *fd);
  41
  42 /*
  43  *-------------------------------------------------------------------
  44  * 'signals'
  45  *-------------------------------------------------------------------
  46  */
  47
  48 static void image_click_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  49 {
  50         ImageWindow *imd = data;
  51
  52         if (imd->func_button)
  53                 {
  54                 imd->func_button(imd, event, imd->data_button);
  55                 }
  56 }
  57
  58 static void image_drag_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  59 {
  60         ImageWindow *imd = data;
  61         gint width, height;
  62
  63         pixbuf_renderer_get_scaled_size(pr, &width, &height);
  64
  65         if (imd->func_drag)
  66                 {
  67                 imd->func_drag(imd, event,
  68                                (gfloat)(pr->drag_last_x - event->x) / width,
  69                                (gfloat)(pr->drag_last_y - event->y) / height,
  70                                imd->data_button);
  71                 }
  72 }
  73
  74 static void image_scroll_notify_cb(PixbufRenderer *pr, gpointer data)
  75 {
  76         ImageWindow *imd = data;
  77
  78         if (imd->func_scroll_notify && pr->scale)
  79                 {
  80                 imd->func_scroll_notify(imd,
  81                                         (gint)((gdouble)pr->x_scroll / pr->scale),
  82                                         (gint)((gdouble)pr->y_scroll / pr->scale),
  83                                         (gint)((gdouble)pr->image_width - pr->vis_width / pr->scale),
  84                                         (gint)((gdouble)pr->image_height - pr->vis_height / pr->scale),
  85                                         imd->data_scroll_notify);
  86                 }
  87 }
  88
  89 static void image_update_util(ImageWindow *imd)
  90 {
  91         if (imd->func_update) imd->func_update(imd, imd->data_update);
  92 }
  93
  94 static void image_zoom_cb(PixbufRenderer *pr, gdouble zoom, gpointer data)
  95 {
  96         ImageWindow *imd = data;
  97
  98         if (imd->title_show_zoom) image_update_title(imd);
  99         if (imd->overlay_show_zoom) image_osd_update(imd);
 100
 101         image_update_util(imd);
 102 }
 103
 104 static void image_complete_util(ImageWindow *imd, gint preload)
 105 {
 106         if (imd->il && image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il)) return;
 107
 108         DEBUG_1("%s image load completed \"%s\" (%s)", get_exec_time(),
 109                           (preload) ? (imd->read_ahead_fd ? imd->read_ahead_fd->path : "null") :
 110                                       (imd->image_fd ? imd->image_fd->path : "null"),
 111                           (preload) ? "preload" : "current");
 112
 113         if (!preload) imd->completed = TRUE;
 114         if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
 115 }
 116
 117 static void image_render_complete_cb(PixbufRenderer *pr, gpointer data)
 118 {
 119         ImageWindow *imd = data;
 120
 121         image_complete_util(imd, FALSE);
 122 }
 123
 124 static void image_state_set(ImageWindow *imd, ImageState state)
 125 {
 126         if (state == IMAGE_STATE_NONE)
 127                 {
 128                 imd->state = state;
 129                 }
 130         else
 131                 {
 132                 imd->state |= state;
 133                 }
 134         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 135 }
 136
 137 static void image_state_unset(ImageWindow *imd, ImageState state)
 138 {
 139         imd->state &= ~state;
 140         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 141 }
 142
 143 /*
 144  *-------------------------------------------------------------------
 145  * misc
 146  *-------------------------------------------------------------------
 147  */
 148
 149 static void image_update_title(ImageWindow *imd)
 150 {
 151         gchar *title = NULL;
 152         gchar *zoom = NULL;
 153         gchar *collection = NULL;
 154
 155         if (!imd->top_window) return;
 156
 157         if (imd->collection && collection_to_number(imd->collection) >= 0)
 158                 {
 159                 const gchar *name = imd->collection->name;
 160                 if (!name) name = _("Untitled");
 161                 collection = g_strdup_printf(_(" (Collection %s)"), name);
 162                 }
 163
 164         if (imd->title_show_zoom)
 165                 {
 166                 gchar *buf = image_zoom_get_as_text(imd);
 167                 zoom = g_strconcat(" [", buf, "]", NULL);
 168                 g_free(buf);
 169                 }
 170
 171         title = g_strdup_printf("%s%s%s%s%s%s",
 172                 imd->title ? imd->title : "",
 173                 imd->image_fd ? imd->image_fd->name : "",
 174                 zoom ? zoom : "",
 175                 collection ? collection : "",
 176                 imd->image_fd ? " - " : "",
 177                 imd->title_right ? imd->title_right : "");
 178
 179         gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
 180
 181         g_free(title);
 182         g_free(zoom);
 183         g_free(collection);
 184 }
 185
 186 /*
 187  *-------------------------------------------------------------------
 188  * rotation, flip, etc.
 189  *-------------------------------------------------------------------
 190  */
 191
 192 static gint image_post_process_color(ImageWindow *imd, gint start_row, ExifData *exif, gint run_in_bg)
 193 {
 194         ColorMan *cm;
 195         ColorManProfileType input_type;
 196         ColorManProfileType screen_type;
 197         const gchar *input_file;
 198         const gchar *screen_file;
 199         guchar *profile = NULL;
 200         guint profile_len;
 201
 202         if (imd->cm) return FALSE;
 203
 204         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
 205             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
 206                 {
 207                 gint n;
 208
 209                 n = imd->color_profile_input - COLOR_PROFILE_FILE;
 210                 if (!options->color_profile.input_file[n]) return FALSE;
 211
 212                 input_type = COLOR_PROFILE_FILE;
 213                 input_file = options->color_profile.input_file[n];
 214                 }
 215         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
 216                  imd->color_profile_input <  COLOR_PROFILE_FILE)
 217                 {
 218                 input_type = imd->color_profile_input;
 219                 input_file = NULL;
 220                 }
 221         else
 222                 {
 223                 return FALSE;
 224                 }
 225
 226         if (imd->color_profile_screen == 1 &&
 227             options->color_profile.screen_file)
 228                 {
 229                 screen_type = COLOR_PROFILE_FILE;
 230                 screen_file = options->color_profile.screen_file;
 231                 }
 232         else if (imd->color_profile_screen == 0)
 233                 {
 234                 screen_type = COLOR_PROFILE_SRGB;
 235                 screen_file = NULL;
 236                 }
 237         else
 238                 {
 239                 return FALSE;
 240                 }
 241         imd->color_profile_from_image = COLOR_PROFILE_NONE;
 242
 243         if (imd->color_profile_use_image && exif)
 244                 {
 245                 profile = exif_get_color_profile(exif, &profile_len);
 246                 if (!profile)
 247                         {
 248                         gint cs;
 249                         gchar *interop_index;
 250
 251                         /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
 252                         if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
 253                         interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
 254
 255                         if (cs == 1)
 256                                 {
 257                                 input_type = COLOR_PROFILE_SRGB;
 258                                 input_file = NULL;
 259                                 imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 260
 261                                 DEBUG_1("Found EXIF ColorSpace of sRGB");
 262                                 }
 263                         if (cs == 2 || (interop_index && !strcmp(interop_index, "R03")))
 264                                 {
 265                                 input_type = COLOR_PROFILE_ADOBERGB;
 266                                 input_file = NULL;
 267                                 imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 268
 269                                 DEBUG_1("Found EXIF ColorSpace of AdobeRGB");
 270                                 }
 271
 272                         g_free(interop_index);
 273                         }
 274                 }
 275
 276         if (profile)
 277                 {
 278                 DEBUG_1("Found embedded color profile");
 279                 imd->color_profile_from_image = COLOR_PROFILE_MEM;
 280
 281                 cm = color_man_new_embedded(run_in_bg ? imd : NULL, NULL,
 282                                             profile, profile_len,
 283                                             screen_type, screen_file);
 284                 g_free(profile);
 285                 }
 286         else
 287                 {
 288                 cm = color_man_new(run_in_bg ? imd : NULL, NULL,
 289                                    input_type, input_file,
 290                                    screen_type, screen_file);
 291                 }
 292
 293         if (cm)
 294                 {
 295                 if (start_row > 0)
 296                         {
 297                         cm->row = start_row;
 298                         cm->incremental_sync = TRUE;
 299                         }
 300
 301                 imd->cm = (gpointer)cm;
 302 #if 0
 303                 if (run_in_bg) color_man_start_bg(imd->cm, image_post_process_color_cb, imd);
 304 #endif
 305                 return TRUE;
 306                 }
 307
 308         return FALSE;
 309 }
 310
 311
 312 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 313 {
 314         ImageWindow *imd = (ImageWindow *)data;
 315         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
 316         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 317
 318 }
 319
 320 void image_alter(ImageWindow *imd, AlterType type)
 321 {
 322         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 323         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 324         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 325         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 326         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 327
 328
 329         if (!imd || !imd->pr || !imd->image_fd) return;
 330
 331         if (imd->orientation < 1 || imd->orientation > 8) imd->orientation = 1;
 332
 333         switch (type)
 334                 {
 335                 case ALTER_ROTATE_90:
 336                         imd->orientation = rotate_90[imd->orientation];
 337                         break;
 338                 case ALTER_ROTATE_90_CC:
 339                         imd->orientation = rotate_90_cc[imd->orientation];
 340                         break;
 341                 case ALTER_ROTATE_180:
 342                         imd->orientation = rotate_180[imd->orientation];
 343                         break;
 344                 case ALTER_MIRROR:
 345                         imd->orientation = mirror[imd->orientation];
 346                         break;
 347                 case ALTER_FLIP:
 348                         imd->orientation = flip[imd->orientation];
 349                         break;
 350                 case ALTER_DESATURATE:
 351                         imd->desaturate = !imd->desaturate;
 352                         break;
 353                 case ALTER_NONE:
 354                         imd->orientation = imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1;
 355                         imd->desaturate = FALSE;
 356                         break;
 357                 default:
 358                         return;
 359                         break;
 360                 }
 361
 362         if (type != ALTER_NONE && type != ALTER_DESATURATE)
 363                 {
 364                 if (imd->image_fd->user_orientation == 0) file_data_ref(imd->image_fd);
 365                 imd->image_fd->user_orientation = imd->orientation;
 366                 }
 367         else
 368                 {
 369                 if (imd->image_fd->user_orientation != 0) file_data_unref(imd->image_fd);
 370                 imd->image_fd->user_orientation = 0;
 371                 }
 372
 373         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 374         if (imd->cm || imd->desaturate)
 375                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 376         else
 377                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 378 }
 379
 380
 381 /*
 382  *-------------------------------------------------------------------
 383  * read ahead (prebuffer)
 384  *-------------------------------------------------------------------
 385  */
 386
 387 static void image_read_ahead_cancel(ImageWindow *imd)
 388 {
 389         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 390
 391         image_loader_free(imd->read_ahead_il);
 392         imd->read_ahead_il = NULL;
 393
 394         file_data_unref(imd->read_ahead_fd);
 395         imd->read_ahead_fd = NULL;
 396 }
 397
 398 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 399 {
 400         ImageWindow *imd = data;
 401
 402         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 403
 404         if (!imd->read_ahead_fd->pixbuf)
 405                 {
 406                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 407                 if (imd->read_ahead_fd->pixbuf)
 408                         {
 409                         g_object_ref(imd->read_ahead_fd->pixbuf);
 410                         image_cache_set(imd, imd->read_ahead_fd);
 411                         }
 412                 }
 413         image_loader_free(imd->read_ahead_il);
 414         imd->read_ahead_il = NULL;
 415
 416         image_complete_util(imd, TRUE);
 417 }
 418
 419 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 420 {
 421         /* we even treat errors as success, maybe at least some of the file was ok */
 422         image_read_ahead_done_cb(il, data);
 423 }
 424
 425 static void image_read_ahead_start(ImageWindow *imd)
 426 {
 427         /* already started ? */
 428         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 429
 430         /* still loading ?, do later */
 431         if (imd->il /*|| imd->cm*/) return;
 432
 433         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 434
 435         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 436
 437         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 438
 439         g_signal_connect (G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 440         g_signal_connect (G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 441
 442         if (!image_loader_start(imd->read_ahead_il))
 443                 {
 444                 image_read_ahead_cancel(imd);
 445                 image_complete_util(imd, TRUE);
 446                 }
 447 }
 448
 449 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 450 {
 451         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 452
 453         image_read_ahead_cancel(imd);
 454
 455         imd->read_ahead_fd = file_data_ref(fd);
 456
 457         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 458
 459         image_read_ahead_start(imd);
 460 }
 461
 462 /*
 463  *-------------------------------------------------------------------
 464  * post buffering
 465  *-------------------------------------------------------------------
 466  */
 467
 468 static void image_cache_release_cb(FileData *fd)
 469 {
 470         g_object_unref(fd->pixbuf);
 471         fd->pixbuf = NULL;
 472 }
 473
 474 static FileCacheData *image_get_cache(void)
 475 {
 476         static FileCacheData *cache = NULL;
 477         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 478         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 479         return cache;
 480 }
 481
 482 static void image_cache_set(ImageWindow *imd, FileData *fd)
 483 {
 484         g_assert(fd->pixbuf);
 485
 486         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 487         file_data_send_notification(fd, NOTIFY_TYPE_INTERNAL); /* to update histogram */
 488 }
 489
 490 static gint image_cache_get(ImageWindow *imd)
 491 {
 492         gint success;
 493
 494         success = file_cache_get(image_get_cache(), imd->image_fd);
 495         if (success)
 496                 {
 497                 g_assert(imd->image_fd->pixbuf);
 498                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 499                 }
 500
 501         file_cache_dump(image_get_cache());
 502         return success;
 503 }
 504
 505 /*
 506  *-------------------------------------------------------------------
 507  * loading
 508  *-------------------------------------------------------------------
 509  */
 510
 511 static void image_load_pixbuf_ready(ImageWindow *imd)
 512 {
 513         if (image_get_pixbuf(imd) || !imd->il) return;
 514
 515         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 516 }
 517
 518 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 519 {
 520         ImageWindow *imd = data;
 521         PixbufRenderer *pr;
 522
 523         pr = (PixbufRenderer *)imd->pr;
 524
 525         if (imd->delay_flip &&
 526             pr->pixbuf != image_loader_get_pixbuf(il))
 527                 {
 528                 return;
 529                 }
 530
 531         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 532
 533         pixbuf_renderer_area_changed(pr, x, y, w, h);
 534 }
 535
 536 static void image_load_done_cb(ImageLoader *il, gpointer data)
 537 {
 538         ImageWindow *imd = data;
 539
 540         DEBUG_1("%s image done", get_exec_time());
 541
 542         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 543                 {
 544                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
 545                 image_cache_set(imd, imd->image_fd);
 546                 }
 547         /* call the callback triggered by image_state after fd->pixbuf is set */
 548         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 549         image_state_unset(imd, IMAGE_STATE_LOADING);
 550
 551         if (!image_loader_get_pixbuf(imd->il))
 552                 {
 553                 GdkPixbuf *pixbuf;
 554
 555                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 556                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 557                 g_object_unref(pixbuf);
 558
 559                 imd->unknown = TRUE;
 560                 }
 561         else if (imd->delay_flip &&
 562             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 563                 {
 564                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 565                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 566                 }
 567
 568         image_loader_free(imd->il);
 569         imd->il = NULL;
 570
 571 //      image_post_process(imd, TRUE);
 572
 573         image_read_ahead_start(imd);
 574 }
 575
 576 static void image_load_error_cb(ImageLoader *il, gpointer data)
 577 {
 578         DEBUG_1("%s image error", get_exec_time());
 579
 580         /* even on error handle it like it was done,
 581          * since we have a pixbuf with _something_ */
 582
 583         image_load_done_cb(il, data);
 584 }
 585
 586 /* this read ahead is located here merely for the callbacks, above */
 587
 588 static gint image_read_ahead_check(ImageWindow *imd)
 589 {
 590         if (!imd->read_ahead_fd) return FALSE;
 591         if (imd->il) return FALSE;
 592
 593         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 594                 {
 595                 image_read_ahead_cancel(imd);
 596                 return FALSE;
 597                 }
 598
 599         if (imd->read_ahead_il)
 600                 {
 601                 imd->il = imd->read_ahead_il;
 602                 imd->read_ahead_il = NULL;
 603
 604                 /* override the old signals */
 605                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 606                 g_signal_connect (G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 607                 g_signal_connect (G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 608                 g_signal_connect (G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 609
 610                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 611                 image_state_set(imd, IMAGE_STATE_LOADING);
 612
 613                 if (!imd->delay_flip)
 614                         {
 615                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 616                         }
 617
 618                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 619
 620                 file_data_unref(imd->read_ahead_fd);
 621                 imd->read_ahead_fd = NULL;
 622                 return TRUE;
 623                 }
 624         else if (imd->read_ahead_fd->pixbuf)
 625                 {
 626                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
 627
 628                 file_data_unref(imd->read_ahead_fd);
 629                 imd->read_ahead_fd = NULL;
 630
 631 //              image_post_process(imd, FALSE);
 632                 return TRUE;
 633                 }
 634
 635         image_read_ahead_cancel(imd);
 636         return FALSE;
 637 }
 638
 639 static gint image_load_begin(ImageWindow *imd, FileData *fd)
 640 {
 641         DEBUG_1("%s image begin", get_exec_time());
 642
 643         if (imd->il) return FALSE;
 644
 645         imd->completed = FALSE;
 646         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 647
 648         if (image_cache_get(imd))
 649                 {
 650                 DEBUG_1("from cache: %s", imd->image_fd->path);
 651                 return TRUE;
 652                 }
 653
 654         if (image_read_ahead_check(imd))
 655                 {
 656                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 657                 return TRUE;
 658                 }
 659
 660         if (!imd->delay_flip && image_get_pixbuf(imd))
 661                 {
 662                 PixbufRenderer *pr;
 663
 664                 pr = PIXBUF_RENDERER(imd->pr);
 665                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 666                 pr->pixbuf = NULL;
 667                 }
 668
 669         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 670
 671         imd->il = image_loader_new(fd);
 672
 673         g_signal_connect (G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 674         g_signal_connect (G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 675         g_signal_connect (G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 676
 677         if (!image_loader_start(imd->il))
 678                 {
 679                 DEBUG_1("image start error");
 680
 681                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 682
 683                 image_loader_free(imd->il);
 684                 imd->il = NULL;
 685
 686                 image_complete_util(imd, FALSE);
 687
 688                 return FALSE;
 689                 }
 690
 691         image_state_set(imd, IMAGE_STATE_LOADING);
 692
 693 /*
 694         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
 695                 {
 696                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 697                 }
 698 */
 699         return TRUE;
 700 }
 701
 702 static void image_reset(ImageWindow *imd)
 703 {
 704         /* stops anything currently being done */
 705
 706         DEBUG_1("%s image reset", get_exec_time());
 707
 708         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 709
 710         image_loader_free(imd->il);
 711         imd->il = NULL;
 712
 713         color_man_free((ColorMan *)imd->cm);
 714         imd->cm = NULL;
 715
 716         imd->delay_alter_type = ALTER_NONE;
 717
 718         image_state_set(imd, IMAGE_STATE_NONE);
 719 }
 720
 721 /*
 722  *-------------------------------------------------------------------
 723  * image changer
 724  *-------------------------------------------------------------------
 725  */
 726
 727 static void image_change_complete(ImageWindow *imd, gdouble zoom, gint new)
 728 {
 729         image_reset(imd);
 730
 731         if (imd->image_fd && isfile(imd->image_fd->path))
 732                 {
 733                 PixbufRenderer *pr;
 734
 735                 pr = PIXBUF_RENDERER(imd->pr);
 736                 pr->zoom = zoom;        /* store the zoom, needed by the loader */
 737
 738                 if (image_load_begin(imd, imd->image_fd))
 739                         {
 740                         imd->unknown = FALSE;
 741                         }
 742                 else
 743                         {
 744                         GdkPixbuf *pixbuf;
 745
 746                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 747                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 748                         g_object_unref(pixbuf);
 749
 750                         imd->unknown = TRUE;
 751                         }
 752                 }
 753         else
 754                 {
 755                 if (imd->image_fd)
 756                         {
 757                         GdkPixbuf *pixbuf;
 758
 759                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 760                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 761                         g_object_unref(pixbuf);
 762                         }
 763                 else
 764                         {
 765                         image_change_pixbuf(imd, NULL, zoom, FALSE);
 766                         }
 767                 imd->unknown = TRUE;
 768                 }
 769
 770         image_update_util(imd);
 771 }
 772
 773 static void image_change_real(ImageWindow *imd, FileData *fd,
 774                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 775 {
 776
 777         imd->collection = cd;
 778         imd->collection_info = info;
 779
 780         if (imd->auto_refresh && imd->image_fd)
 781                 file_data_unregister_real_time_monitor(imd->image_fd);
 782
 783         file_data_unref(imd->image_fd);
 784         imd->image_fd = file_data_ref(fd);
 785
 786
 787         image_change_complete(imd, zoom, TRUE);
 788
 789         image_update_title(imd);
 790         image_state_set(imd, IMAGE_STATE_IMAGE);
 791
 792         if (imd->auto_refresh && imd->image_fd)
 793                 file_data_register_real_time_monitor(imd->image_fd);
 794 }
 795
 796 /*
 797  *-------------------------------------------------------------------
 798  * focus stuff
 799  *-------------------------------------------------------------------
 800  */
 801
 802 static void image_focus_paint(ImageWindow *imd, gint has_focus, GdkRectangle *area)
 803 {
 804         GtkWidget *widget;
 805
 806         widget = imd->widget;
 807         if (!widget->window) return;
 808
 809         if (has_focus)
 810                 {
 811                 gtk_paint_focus(widget->style, widget->window, GTK_STATE_ACTIVE,
 812                                 area, widget, "image_window",
 813                                 widget->allocation.x, widget->allocation.y,
 814                                 widget->allocation.width - 1, widget->allocation.height - 1);
 815                 }
 816         else
 817                 {
 818                 gtk_paint_shadow(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
 819                                  area, widget, "image_window",
 820                                  widget->allocation.x, widget->allocation.y,
 821                                  widget->allocation.width - 1, widget->allocation.height - 1);
 822                 }
 823 }
 824
 825 static gint image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 826 {
 827         ImageWindow *imd = data;
 828
 829         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 830         return TRUE;
 831 }
 832
 833 static gint image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 834 {
 835         ImageWindow *imd = data;
 836
 837         GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 838         image_focus_paint(imd, TRUE, NULL);
 839
 840         return TRUE;
 841 }
 842
 843 static gint image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 844 {
 845         ImageWindow *imd = data;
 846
 847         GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 848         image_focus_paint(imd, FALSE, NULL);
 849
 850         return TRUE;
 851 }
 852
 853 static gint image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 854 {
 855         ImageWindow *imd = data;
 856
 857         if (imd->func_scroll &&
 858             event && event->type == GDK_SCROLL)
 859                 {
 860                 imd->func_scroll(imd, event, imd->data_scroll);
 861                 return TRUE;
 862                 }
 863
 864         return FALSE;
 865 }
 866
 867 /*
 868  *-------------------------------------------------------------------
 869  * public interface
 870  *-------------------------------------------------------------------
 871  */
 872
 873 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 874                          const gchar *title, const gchar *title_right, gint show_zoom)
 875 {
 876         imd->top_window = window;
 877         g_free(imd->title);
 878         imd->title = g_strdup(title);
 879         g_free(imd->title_right);
 880         imd->title_right = g_strdup(title_right);
 881         imd->title_show_zoom = show_zoom;
 882
 883         if (!options->image.fit_window_to_image) window = NULL;
 884
 885         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 886
 887         image_update_title(imd);
 888 }
 889
 890 void image_set_update_func(ImageWindow *imd,
 891                            void (*func)(ImageWindow *imd, gpointer data),
 892                            gpointer data)
 893 {
 894         imd->func_update = func;
 895         imd->data_update = data;
 896 }
 897
 898 void image_set_complete_func(ImageWindow *imd,
 899                              void (*func)(ImageWindow *imd, gint preload, gpointer data),
 900                              gpointer data)
 901 {
 902         imd->func_complete = func;
 903         imd->data_complete = data;
 904 }
 905
 906 void image_set_state_func(ImageWindow *imd,
 907                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 908                         gpointer data)
 909 {
 910         imd->func_state = func;
 911         imd->data_state = data;
 912 }
 913
 914
 915 void image_set_button_func(ImageWindow *imd,
 916                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
 917                            gpointer data)
 918 {
 919         imd->func_button = func;
 920         imd->data_button = data;
 921 }
 922
 923 void image_set_drag_func(ImageWindow *imd,
 924                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
 925                            gpointer data)
 926 {
 927         imd->func_drag = func;
 928         imd->data_drag = data;
 929 }
 930
 931 void image_set_scroll_func(ImageWindow *imd,
 932                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
 933                            gpointer data)
 934 {
 935         imd->func_scroll = func;
 936         imd->data_scroll = data;
 937 }
 938
 939 void image_set_scroll_notify_func(ImageWindow *imd,
 940                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
 941                                   gpointer data)
 942 {
 943         imd->func_scroll_notify = func;
 944         imd->data_scroll_notify = data;
 945 }
 946
 947 /* path, name */
 948
 949 const gchar *image_get_path(ImageWindow *imd)
 950 {
 951         if (imd->image_fd == NULL) return NULL;
 952         return imd->image_fd->path;
 953 }
 954
 955 const gchar *image_get_name(ImageWindow *imd)
 956 {
 957         if (imd->image_fd == NULL) return NULL;
 958         return imd->image_fd->name;
 959 }
 960
 961 FileData *image_get_fd(ImageWindow *imd)
 962 {
 963         return imd->image_fd;
 964 }
 965
 966 /* merely changes path string, does not change the image! */
 967 void image_set_fd(ImageWindow *imd, FileData *fd)
 968 {
 969         if (imd->auto_refresh && imd->image_fd)
 970                 file_data_unregister_real_time_monitor(imd->image_fd);
 971
 972         file_data_unref(imd->image_fd);
 973         imd->image_fd = file_data_ref(fd);
 974
 975         image_update_title(imd);
 976         image_state_set(imd, IMAGE_STATE_IMAGE);
 977
 978         if (imd->auto_refresh && imd->image_fd)
 979                 file_data_register_real_time_monitor(imd->image_fd);
 980 }
 981
 982 /* load a new image */
 983
 984 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
 985 {
 986         if (imd->image_fd == fd) return;
 987
 988         image_change_real(imd, fd, NULL, NULL, zoom);
 989 }
 990
 991 gint image_get_image_size(ImageWindow *imd, gint *width, gint *height)
 992 {
 993         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
 994 }
 995
 996 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
 997 {
 998         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
 999 }
1000
1001 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gint lazy)
1002 {
1003
1004
1005         /* read_exif and similar functions can actually notice that the file has changed and triger a notification
1006         that removes the pixbuf from cache and unref it. Therefore we must ref it here before it is taken over by the renderer. */
1007         if (pixbuf) g_object_ref(pixbuf);
1008
1009         if (imd->image_fd)
1010                 {
1011                 if (imd->image_fd->user_orientation)
1012                         {
1013                         imd->orientation = imd->image_fd->user_orientation;
1014                         }
1015                 else if (options->image.exif_rotate_enable)
1016                         {
1017                         imd->orientation = metadata_read_int(imd->image_fd, "Exif.Image.Orientation", EXIF_ORIENTATION_TOP_LEFT);
1018                         imd->image_fd->exif_orientation = imd->orientation;
1019                         }
1020                 }
1021
1022         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1023         if (imd->cm)
1024                 {
1025                 color_man_free(imd->cm);
1026                 imd->cm = NULL;
1027                 }
1028
1029         if (lazy)
1030                 {
1031                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation);
1032                 }
1033         else
1034                 {
1035                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1036                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1037                 }
1038
1039         if (pixbuf) g_object_unref(pixbuf);
1040
1041         if (imd->color_profile_enable)
1042                 {
1043                 ExifData *exif = NULL;
1044
1045                 if (imd->color_profile_use_image) exif = exif_read_fd(imd->image_fd);
1046
1047                 if (!image_post_process_color(imd, 0, exif, FALSE))
1048                         {
1049                         /* fixme: note error to user */
1050 //                      image_state_set(imd, IMAGE_STATE_COLOR_ADJ);
1051                         }
1052                 if (exif) exif_free_fd(imd->image_fd, exif);
1053
1054                 }
1055
1056         if (imd->cm || imd->desaturate)
1057                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1058
1059         image_state_set(imd, IMAGE_STATE_IMAGE);
1060 }
1061
1062 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1063 {
1064         if (!cd || !info || !g_list_find(cd->list, info)) return;
1065
1066         image_change_real(imd, info->fd, cd, info, zoom);
1067 }
1068
1069 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1070 {
1071         if (collection_to_number(imd->collection) >= 0)
1072                 {
1073                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1074                         {
1075                         if (info) *info = imd->collection_info;
1076                         }
1077                 else
1078                         {
1079                         if (info) *info = NULL;
1080                         }
1081                 return imd->collection;
1082                 }
1083
1084         if (info) *info = NULL;
1085         return NULL;
1086 }
1087
1088 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1089 {
1090         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1091                 g_signal_connect (G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1092
1093         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1094                 g_signal_connect (G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1095 }
1096
1097 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1098 {
1099         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1100                 g_signal_connect (G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1101
1102         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1103                 g_signal_connect (G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1104
1105         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1106                 g_signal_connect (G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1107 }
1108
1109 /* this is more like a move function
1110  * it moves most data from source to imd
1111  */
1112 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1113 {
1114         if (imd == source) return;
1115
1116         imd->unknown = source->unknown;
1117
1118         imd->collection = source->collection;
1119         imd->collection_info = source->collection_info;
1120
1121         image_loader_free(imd->il);
1122         imd->il = NULL;
1123
1124         image_set_fd(imd, image_get_fd(source));
1125
1126
1127         if (source->il)
1128                 {
1129                 imd->il = source->il;
1130                 source->il = NULL;
1131
1132                 image_loader_sync_data(imd->il, source, imd);
1133
1134                 imd->delay_alter_type = source->delay_alter_type;
1135                 source->delay_alter_type = ALTER_NONE;
1136                 }
1137
1138         imd->color_profile_enable = source->color_profile_enable;
1139         imd->color_profile_input = source->color_profile_input;
1140         imd->color_profile_screen = source->color_profile_screen;
1141         imd->color_profile_use_image = source->color_profile_use_image;
1142         color_man_free((ColorMan *)imd->cm);
1143         imd->cm = NULL;
1144         if (source->cm)
1145                 {
1146                 ColorMan *cm;
1147
1148                 imd->cm = source->cm;
1149                 source->cm = NULL;
1150
1151                 cm = (ColorMan *)imd->cm;
1152                 cm->imd = imd;
1153                 cm->func_done_data = imd;
1154                 }
1155
1156         image_loader_free(imd->read_ahead_il);
1157         imd->read_ahead_il = source->read_ahead_il;
1158         source->read_ahead_il = NULL;
1159         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1160
1161         file_data_unref(imd->read_ahead_fd);
1162         imd->read_ahead_fd = source->read_ahead_fd;
1163         source->read_ahead_fd = NULL;
1164
1165         imd->completed = source->completed;
1166         imd->state = source->state;
1167         source->state = IMAGE_STATE_NONE;
1168
1169         imd->orientation = source->orientation;
1170         imd->desaturate = source->desaturate;
1171
1172         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1173
1174         if (imd->cm || imd->desaturate)
1175                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1176         else
1177                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1178
1179 }
1180
1181 /* manipulation */
1182
1183 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1184 {
1185         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1186 }
1187
1188 void image_reload(ImageWindow *imd)
1189 {
1190         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1191
1192         image_change_complete(imd, image_zoom_get(imd), FALSE);
1193 }
1194
1195 void image_scroll(ImageWindow *imd, gint x, gint y)
1196 {
1197         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1198 }
1199
1200 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1201                            gdouble x_align, gdouble y_align)
1202 {
1203         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1204 }
1205
1206 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1207 {
1208         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1209 }
1210
1211 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1212 {
1213         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1214 }
1215
1216 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1217 {
1218         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1219 }
1220
1221 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1222 {
1223         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1224 }
1225
1226 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1227 {
1228         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1229 }
1230
1231 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1232 {
1233         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1234 }
1235
1236 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1237 {
1238         PixbufRenderer *pr;
1239         gdouble zoom;
1240         gint width, height;
1241
1242         pr = (PixbufRenderer *)imd->pr;
1243
1244         if (!pixbuf_renderer_get_pixbuf(pr) ||
1245             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1246
1247         if (vertical)
1248                 {
1249                 zoom = (gdouble)pr->window_height / height;
1250                 }
1251         else
1252                 {
1253                 zoom = (gdouble)pr->window_width / width;
1254                 }
1255
1256         if (zoom < 1.0)
1257                 {
1258                 zoom = 0.0 - 1.0 / zoom;
1259                 }
1260
1261         pixbuf_renderer_zoom_set(pr, zoom);
1262 }
1263
1264 gdouble image_zoom_get(ImageWindow *imd)
1265 {
1266         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1267 }
1268
1269 gdouble image_zoom_get_real(ImageWindow *imd)
1270 {
1271         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1272 }
1273
1274 gchar *image_zoom_get_as_text(ImageWindow *imd)
1275 {
1276         gdouble zoom;
1277         gdouble scale;
1278         gdouble l = 1.0;
1279         gdouble r = 1.0;
1280         gint pl = 0;
1281         gint pr = 0;
1282         gchar *approx = " ";
1283
1284         zoom = image_zoom_get(imd);
1285         scale = image_zoom_get_real(imd);
1286
1287         if (zoom > 0.0)
1288                 {
1289                 l = zoom;
1290                 }
1291         else if (zoom < 0.0)
1292                 {
1293                 r = 0.0 - zoom;
1294                 }
1295         else if (zoom == 0.0 && scale != 0.0)
1296                 {
1297                 if (scale >= 1.0)
1298                         {
1299                         l = scale;
1300                         }
1301                 else
1302                         {
1303                         r = 1.0 / scale;
1304                         }
1305                 approx = "~";
1306                 }
1307
1308         if (rint(l) != l) pl = 1;
1309         if (rint(r) != r) pr = 1;
1310
1311         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1312 }
1313
1314 gdouble image_zoom_get_default(ImageWindow *imd)
1315 {
1316         gdouble zoom = 1.0;
1317
1318         switch (options->image.zoom_mode)
1319         {
1320         case ZOOM_RESET_ORIGINAL:
1321                 break;
1322         case ZOOM_RESET_FIT_WINDOW:
1323                 zoom = 0.0;
1324                 break;
1325         case ZOOM_RESET_NONE:
1326                 if (imd) zoom = image_zoom_get(imd);
1327                 break;
1328         }
1329
1330         return zoom;
1331 }
1332
1333 /* read ahead */
1334
1335 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1336 {
1337         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1338
1339         if (fd)
1340                 {
1341                 if (!file_cache_get(image_get_cache(), fd))
1342                         {
1343                         image_read_ahead_set(imd, fd);
1344                         }
1345                 }
1346         else
1347                 {
1348                 image_read_ahead_cancel(imd);
1349                 }
1350 }
1351
1352 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1353 {
1354         ImageWindow *imd = data;
1355
1356         if (!imd || !image_get_pixbuf(imd) ||
1357             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1358             !imd->image_fd || /* nothing to reload */
1359             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1360             ) return;
1361
1362         if (type == NOTIFY_TYPE_REREAD && fd == imd->image_fd)
1363                 {
1364                 image_reload(imd);
1365                 }
1366 }
1367
1368 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1369 {
1370         if (!enable && imd->auto_refresh && imd->image_fd)
1371                 file_data_unregister_real_time_monitor(imd->image_fd);
1372
1373         if (enable && !imd->auto_refresh && imd->image_fd)
1374                 file_data_register_real_time_monitor(imd->image_fd);
1375
1376         imd->auto_refresh = enable;
1377 }
1378
1379 void image_top_window_set_sync(ImageWindow *imd, gint allow_sync)
1380 {
1381         imd->top_window_sync = allow_sync;
1382
1383         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1384 }
1385
1386 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1387 {
1388         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1389 }
1390
1391 void image_color_profile_set(ImageWindow *imd,
1392                              gint input_type, gint screen_type,
1393                              gint use_image)
1394 {
1395         if (!imd) return;
1396
1397         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS ||
1398             screen_type < 0 || screen_type > 1)
1399                 {
1400                 return;
1401                 }
1402
1403         imd->color_profile_input = input_type;
1404         imd->color_profile_screen = screen_type;
1405         imd->color_profile_use_image = use_image;
1406 }
1407
1408 gint image_color_profile_get(ImageWindow *imd,
1409                              gint *input_type, gint *screen_type,
1410                              gint *use_image)
1411 {
1412         if (!imd) return FALSE;
1413
1414         if (input_type) *input_type = imd->color_profile_input;
1415         if (screen_type) *screen_type = imd->color_profile_screen;
1416         if (use_image) *use_image = imd->color_profile_use_image;
1417
1418         return TRUE;
1419 }
1420
1421 void image_color_profile_set_use(ImageWindow *imd, gint enable)
1422 {
1423         if (!imd) return;
1424
1425         if (imd->color_profile_enable == enable) return;
1426
1427         imd->color_profile_enable = enable;
1428 }
1429
1430 gint image_color_profile_get_use(ImageWindow *imd)
1431 {
1432         if (!imd) return FALSE;
1433
1434         return imd->color_profile_enable;
1435 }
1436
1437 gint image_color_profile_get_from_image(ImageWindow *imd)
1438 {
1439         if (!imd) return FALSE;
1440
1441         return imd->color_profile_from_image;
1442 }
1443
1444 void image_set_delay_flip(ImageWindow *imd, gint delay)
1445 {
1446         if (!imd ||
1447             imd->delay_flip == delay) return;
1448
1449         imd->delay_flip = delay;
1450
1451         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1452
1453         if (!imd->delay_flip && imd->il)
1454                 {
1455                 PixbufRenderer *pr;
1456
1457                 pr = PIXBUF_RENDERER(imd->pr);
1458                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1459                 pr->pixbuf = NULL;
1460
1461                 image_load_pixbuf_ready(imd);
1462                 }
1463 }
1464
1465 void image_to_root_window(ImageWindow *imd, gint scaled)
1466 {
1467         GdkScreen *screen;
1468         GdkWindow *rootwindow;
1469         GdkPixmap *pixmap;
1470         GdkPixbuf *pixbuf;
1471         GdkPixbuf *pb;
1472         gint width, height;
1473
1474         if (!imd) return;
1475
1476         pixbuf = image_get_pixbuf(imd);
1477         if (!pixbuf) return;
1478
1479         screen = gtk_widget_get_screen(imd->widget);
1480         rootwindow = gdk_screen_get_root_window(screen);
1481         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1482
1483         if (scaled)
1484                 {
1485                 width = gdk_screen_width();
1486                 height = gdk_screen_height();
1487                 }
1488         else
1489                 {
1490                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1491                 }
1492
1493         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1494
1495         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1496         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1497         gdk_window_clear(rootwindow);
1498         g_object_unref(pb);
1499         g_object_unref(pixmap);
1500
1501         gdk_flush();
1502 }
1503
1504 void image_select(ImageWindow *imd, gboolean select)
1505 {
1506         if (imd->has_frame)
1507                 {
1508                 if (select)
1509                         {
1510                         gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1511                         gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1512                         }
1513                 else
1514                         gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1515                 }
1516 }
1517
1518
1519
1520 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1521 {
1522         if (imd->has_frame)
1523                 {
1524                 if (selectable)
1525                         {
1526                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1527                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 4);
1528                         }
1529                 else
1530                         {
1531                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1532                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 0);
1533                         }
1534                 }
1535 }
1536
1537 /*
1538  *-------------------------------------------------------------------
1539  * prefs sync
1540  *-------------------------------------------------------------------
1541  */
1542
1543 static void image_options_set(ImageWindow *imd)
1544 {
1545         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1546                                         "zoom_2pass", options->image.zoom_2pass,
1547                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1548                                         "dither_quality", options->image.dither_quality,
1549                                         "scroll_reset", options->image.scroll_reset_method,
1550                                         "cache_display", options->image.tile_cache_max,
1551                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1552                                         "window_limit", options->image.limit_window_size,
1553                                         "window_limit_value", options->image.max_window_size,
1554                                         "autofit_limit", options->image.limit_autofit_size,
1555                                         "autofit_limit_value", options->image.max_autofit_size,
1556
1557                                         NULL);
1558
1559         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1560 }
1561
1562 void image_options_sync(void)
1563 {
1564         GList *work;
1565
1566         work = image_list;
1567         while (work)
1568                 {
1569                 ImageWindow *imd;
1570
1571                 imd = work->data;
1572                 work = work->next;
1573
1574                 image_options_set(imd);
1575                 }
1576 }
1577
1578 /*
1579  *-------------------------------------------------------------------
1580  * init / destroy
1581  *-------------------------------------------------------------------
1582  */
1583
1584 static void image_free(ImageWindow *imd)
1585 {
1586         image_list = g_list_remove(image_list, imd);
1587
1588         if (imd->auto_refresh && imd->image_fd)
1589                 file_data_unregister_real_time_monitor(imd->image_fd);
1590
1591         file_data_unregister_notify_func(image_notify_cb, imd);
1592
1593         image_reset(imd);
1594
1595         image_read_ahead_cancel(imd);
1596
1597         file_data_unref(imd->image_fd);
1598         g_free(imd->title);
1599         g_free(imd->title_right);
1600         g_free(imd);
1601 }
1602
1603 static void image_destroy_cb(GtkObject *widget, gpointer data)
1604 {
1605         ImageWindow *imd = data;
1606         image_free(imd);
1607 }
1608
1609 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1610 {
1611         gtk_paint_flat_box(widget->style,
1612                            widget->window,
1613                            widget->state,
1614                            (GTK_FRAME(widget))->shadow_type,
1615                            NULL,
1616                            widget,
1617                            NULL,
1618                            widget->allocation.x + 3, widget->allocation.y + 3,
1619                            widget->allocation.width - 6, widget->allocation.height - 6);
1620
1621
1622         return FALSE;
1623 }
1624
1625
1626 void image_set_frame(ImageWindow *imd, gboolean frame)
1627 {
1628         frame = !!frame;
1629
1630         if (frame == imd->has_frame) return;
1631
1632         gtk_widget_hide(imd->pr);
1633
1634         if (frame)
1635                 {
1636                 imd->frame = gtk_frame_new(NULL);
1637 #if GTK_CHECK_VERSION(2,12,0)
1638         g_object_ref(imd->pr);
1639 #else
1640         gtk_widget_ref(imd->pr);
1641 #endif
1642                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1643                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1644
1645 #if GTK_CHECK_VERSION(2,12,0)
1646         g_object_unref(imd->pr);
1647 #else
1648         gtk_widget_unref(imd->pr);
1649 #endif
1650                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1651                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1652
1653                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1654                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1655                                  G_CALLBACK(image_focus_in_cb), imd);
1656                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1657                                  G_CALLBACK(image_focus_out_cb), imd);
1658
1659                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1660                                        G_CALLBACK(image_focus_expose), imd);
1661
1662 #if GTK_CHECK_VERSION(2,14,0)
1663         gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1664 #else
1665         gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1666 #endif
1667         gtk_widget_show(imd->frame);
1668                 }
1669         else
1670                 {
1671 #if GTK_CHECK_VERSION(2,12,0)
1672                 g_object_ref(imd->pr);
1673 #else
1674                 gtk_widget_ref(imd->pr);
1675 #endif
1676                 if (imd->frame)
1677                         {
1678                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1679                         gtk_widget_destroy(imd->frame);
1680                         imd->frame = NULL;
1681                         }
1682 #if GTK_CHECK_VERSION(2,14,0)
1683         gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1684 #else
1685                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1686 #endif
1687
1688 #if GTK_CHECK_VERSION(2,12,0)
1689         g_object_unref(imd->pr);
1690 #else
1691         gtk_widget_unref(imd->pr);
1692 #endif
1693                 }
1694
1695         gtk_widget_show(imd->pr);
1696
1697         imd->has_frame = frame;
1698 }
1699
1700 ImageWindow *image_new(gint frame)
1701 {
1702         ImageWindow *imd;
1703
1704         imd = g_new0(ImageWindow, 1);
1705
1706         imd->top_window = NULL;
1707         imd->title = NULL;
1708         imd->title_right = NULL;
1709         imd->title_show_zoom = FALSE;
1710
1711         imd->unknown = TRUE;
1712
1713         imd->has_frame = -1; /* not initialized; for image_set_frame */
1714         imd->top_window_sync = FALSE;
1715
1716         imd->delay_alter_type = ALTER_NONE;
1717
1718         imd->read_ahead_il = NULL;
1719         imd->read_ahead_fd = NULL;
1720
1721         imd->completed = FALSE;
1722         imd->state = IMAGE_STATE_NONE;
1723
1724         imd->color_profile_enable = FALSE;
1725         imd->color_profile_input = 0;
1726         imd->color_profile_screen = 0;
1727         imd->color_profile_use_image = FALSE;
1728         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1729
1730         imd->auto_refresh = FALSE;
1731
1732         imd->delay_flip = FALSE;
1733
1734         imd->func_update = NULL;
1735         imd->func_complete = NULL;
1736         imd->func_tile_request = NULL;
1737         imd->func_tile_dispose = NULL;
1738
1739         imd->func_button = NULL;
1740         imd->func_scroll = NULL;
1741
1742         imd->orientation = 1;
1743
1744         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1745
1746         image_options_set(imd);
1747
1748
1749         imd->widget = gtk_vbox_new(0, 0);
1750
1751         image_set_frame(imd, frame);
1752
1753         image_set_selectable(imd, 0);
1754
1755         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1756                          G_CALLBACK(image_click_cb), imd);
1757         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1758                          G_CALLBACK(image_scroll_notify_cb), imd);
1759
1760         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1761                          G_CALLBACK(image_scroll_cb), imd);
1762
1763         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1764                          G_CALLBACK(image_destroy_cb), imd);
1765
1766         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1767                          G_CALLBACK(image_zoom_cb), imd);
1768         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1769                          G_CALLBACK(image_render_complete_cb), imd);
1770         g_signal_connect(G_OBJECT(imd->pr), "drag",
1771                          G_CALLBACK(image_drag_cb), imd);
1772
1773         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1774
1775         image_list = g_list_append(image_list, imd);
1776
1777         return imd;
1778 }
1779 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */