src/image.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 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 "histogram.h"
  22 #include "image-load.h"
  23 #include "image-overlay.h"
  24 #include "layout.h"
  25 #include "layout_image.h"
  26 #include "pixbuf-renderer.h"
  27 #include "pixbuf_util.h"
  28 #include "ui_fileops.h"
  29
  30 #include "filedata.h"
  31 #include "filecache.h"
  32
  33 #include <math.h>
  34
  35 static GList *image_list = NULL;
  36
  37 static void image_update_title(ImageWindow *imd);
  38 static void image_read_ahead_start(ImageWindow *imd);
  39 static void image_cache_set(ImageWindow *imd, FileData *fd);
  40
  41 /*
  42  *-------------------------------------------------------------------
  43  * 'signals'
  44  *-------------------------------------------------------------------
  45  */
  46
  47 static void image_click_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  48 {
  49         ImageWindow *imd = data;
  50
  51         if (imd->func_button)
  52                 {
  53                 imd->func_button(imd, event, imd->data_button);
  54                 }
  55 }
  56
  57 static void image_drag_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  58 {
  59         ImageWindow *imd = data;
  60         gint width, height;
  61
  62         pixbuf_renderer_get_scaled_size(pr, &width, &height);
  63
  64         if (imd->func_drag)
  65                 {
  66                 imd->func_drag(imd, event,
  67                                (gfloat)(pr->drag_last_x - event->x) / width,
  68                                (gfloat)(pr->drag_last_y - event->y) / height,
  69                                imd->data_button);
  70                 }
  71 }
  72
  73 static void image_scroll_notify_cb(PixbufRenderer *pr, gpointer data)
  74 {
  75         ImageWindow *imd = data;
  76
  77         if (imd->func_scroll_notify && pr->scale)
  78                 {
  79                 imd->func_scroll_notify(imd,
  80                                         (gint)((gdouble)pr->x_scroll / pr->scale),
  81                                         (gint)((gdouble)pr->y_scroll / pr->scale),
  82                                         (gint)((gdouble)pr->image_width - pr->vis_width / pr->scale),
  83                                         (gint)((gdouble)pr->image_height - pr->vis_height / pr->scale),
  84                                         imd->data_scroll_notify);
  85                 }
  86 }
  87
  88 static void image_update_util(ImageWindow *imd)
  89 {
  90         if (imd->func_update) imd->func_update(imd, imd->data_update);
  91 }
  92
  93 static void image_zoom_cb(PixbufRenderer *pr, gdouble zoom, gpointer data)
  94 {
  95         ImageWindow *imd = data;
  96
  97         if (imd->title_show_zoom) image_update_title(imd);
  98         if (imd->overlay_show_zoom) image_osd_update(imd);
  99
 100         image_update_util(imd);
 101 }
 102
 103 static void image_complete_util(ImageWindow *imd, gint preload)
 104 {
 105         if (imd->il && image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il)) return;
 106
 107         DEBUG_1("%s image load completed \"%s\" (%s)", get_exec_time(),
 108                           (preload) ? (imd->read_ahead_fd ? imd->read_ahead_fd->path : "null") :
 109                                       (imd->image_fd ? imd->image_fd->path : "null"),
 110                           (preload) ? "preload" : "current");
 111
 112         if (!preload) imd->completed = TRUE;
 113         if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
 114 }
 115
 116 static void image_render_complete_cb(PixbufRenderer *pr, gpointer data)
 117 {
 118         ImageWindow *imd = data;
 119
 120         image_complete_util(imd, FALSE);
 121 }
 122
 123 static void image_state_set(ImageWindow *imd, ImageState state)
 124 {
 125         if (state == IMAGE_STATE_NONE)
 126                 {
 127                 imd->state = state;
 128                 }
 129         else
 130                 {
 131                 imd->state |= state;
 132                 }
 133         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 134 }
 135
 136 static void image_state_unset(ImageWindow *imd, ImageState state)
 137 {
 138         imd->state &= ~state;
 139         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 140 }
 141
 142 /*
 143  *-------------------------------------------------------------------
 144  * misc
 145  *-------------------------------------------------------------------
 146  */
 147
 148 static void image_update_title(ImageWindow *imd)
 149 {
 150         gchar *title = NULL;
 151         gchar *zoom = NULL;
 152         gchar *collection = NULL;
 153
 154         if (!imd->top_window) return;
 155
 156         if (imd->collection && collection_to_number(imd->collection) >= 0)
 157                 {
 158                 const gchar *name = imd->collection->name;
 159                 if (!name) name = _("Untitled");
 160                 collection = g_strdup_printf(_(" (Collection %s)"), name);
 161                 }
 162
 163         if (imd->title_show_zoom)
 164                 {
 165                 gchar *buf = image_zoom_get_as_text(imd);
 166                 zoom = g_strconcat(" [", buf, "]", NULL);
 167                 g_free(buf);
 168                 }
 169
 170         title = g_strdup_printf("%s%s%s%s%s%s",
 171                 imd->title ? imd->title : "",
 172                 imd->image_fd ? imd->image_fd->name : "",
 173                 zoom ? zoom : "",
 174                 collection ? collection : "",
 175                 imd->image_fd ? " - " : "",
 176                 imd->title_right ? imd->title_right : "");
 177
 178         gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
 179
 180         g_free(title);
 181         g_free(zoom);
 182         g_free(collection);
 183 }
 184
 185 /*
 186  *-------------------------------------------------------------------
 187  * rotation, flip, etc.
 188  *-------------------------------------------------------------------
 189  */
 190
 191 static gint image_post_process_color(ImageWindow *imd, gint start_row, ExifData *exif, gint run_in_bg)
 192 {
 193         ColorMan *cm;
 194         ColorManProfileType input_type;
 195         ColorManProfileType screen_type;
 196         const gchar *input_file;
 197         const gchar *screen_file;
 198         guchar *profile = NULL;
 199         guint profile_len;
 200
 201         if (imd->cm) return FALSE;
 202
 203         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
 204             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
 205                 {
 206                 gint n;
 207
 208                 n = imd->color_profile_input - COLOR_PROFILE_FILE;
 209                 if (!options->color_profile.input_file[n]) return FALSE;
 210
 211                 input_type = COLOR_PROFILE_FILE;
 212                 input_file = options->color_profile.input_file[n];
 213                 }
 214         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
 215                  imd->color_profile_input <  COLOR_PROFILE_FILE)
 216                 {
 217                 input_type = imd->color_profile_input;
 218                 input_file = NULL;
 219                 }
 220         else
 221                 {
 222                 return FALSE;
 223                 }
 224
 225         if (imd->color_profile_screen == 1 &&
 226             options->color_profile.screen_file)
 227                 {
 228                 screen_type = COLOR_PROFILE_FILE;
 229                 screen_file = options->color_profile.screen_file;
 230                 }
 231         else if (imd->color_profile_screen == 0)
 232                 {
 233                 screen_type = COLOR_PROFILE_SRGB;
 234                 screen_file = NULL;
 235                 }
 236         else
 237                 {
 238                 return FALSE;
 239                 }
 240         imd->color_profile_from_image = COLOR_PROFILE_NONE;
 241
 242         if (imd->color_profile_use_image && exif)
 243                 {
 244                 profile = exif_get_color_profile(exif, &profile_len);
 245                 if (!profile)
 246                         {
 247                         gint cs;
 248                         gchar *interop_index;
 249
 250                         /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
 251                         if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
 252                         interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
 253
 254                         if (cs == 1)
 255                                 {
 256                                 input_type = COLOR_PROFILE_SRGB;
 257                                 input_file = NULL;
 258                                 imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 259
 260                                 DEBUG_1("Found EXIF ColorSpace of sRGB");
 261                                 }
 262                         if (cs == 2 || (interop_index && !strcmp(interop_index, "R03")))
 263                                 {
 264                                 input_type = COLOR_PROFILE_ADOBERGB;
 265                                 input_file = NULL;
 266                                 imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 267
 268                                 DEBUG_1("Found EXIF ColorSpace of AdobeRGB");
 269                                 }
 270
 271                         g_free(interop_index);
 272                         }
 273                 }
 274
 275         if (profile)
 276                 {
 277                 DEBUG_1("Found embedded color profile");
 278                 imd->color_profile_from_image = COLOR_PROFILE_MEM;
 279
 280                 cm = color_man_new_embedded(run_in_bg ? imd : NULL, NULL,
 281                                             profile, profile_len,
 282                                             screen_type, screen_file);
 283                 g_free(profile);
 284                 }
 285         else
 286                 {
 287                 cm = color_man_new(run_in_bg ? imd : NULL, NULL,
 288                                    input_type, input_file,
 289                                    screen_type, screen_file);
 290                 }
 291
 292         if (cm)
 293                 {
 294                 if (start_row > 0)
 295                         {
 296                         cm->row = start_row;
 297                         cm->incremental_sync = TRUE;
 298                         }
 299
 300                 imd->cm = (gpointer)cm;
 301 #if 0
 302                 if (run_in_bg) color_man_start_bg(imd->cm, image_post_process_color_cb, imd);
 303 #endif
 304                 return TRUE;
 305                 }
 306
 307         return FALSE;
 308 }
 309
 310
 311 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 312 {
 313         ImageWindow *imd = (ImageWindow *)data;
 314         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
 315         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 316
 317 }
 318
 319 void image_alter(ImageWindow *imd, AlterType type)
 320 {
 321         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 322         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 323         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 324         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 325         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 326
 327
 328         if (!imd || !imd->pr || !imd->image_fd) return;
 329
 330         if (imd->orientation < 1 || imd->orientation > 8) imd->orientation = 1;
 331
 332         switch (type)
 333                 {
 334                 case ALTER_ROTATE_90:
 335                         imd->orientation = rotate_90[imd->orientation];
 336                         break;
 337                 case ALTER_ROTATE_90_CC:
 338                         imd->orientation = rotate_90_cc[imd->orientation];
 339                         break;
 340                 case ALTER_ROTATE_180:
 341                         imd->orientation = rotate_180[imd->orientation];
 342                         break;
 343                 case ALTER_MIRROR:
 344                         imd->orientation = mirror[imd->orientation];
 345                         break;
 346                 case ALTER_FLIP:
 347                         imd->orientation = flip[imd->orientation];
 348                         break;
 349                 case ALTER_DESATURATE:
 350                         imd->desaturate = !imd->desaturate;
 351                         break;
 352                 case ALTER_NONE:
 353                         imd->orientation = imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1;
 354                         imd->desaturate = FALSE;
 355                         break;
 356                 default:
 357                         return;
 358                         break;
 359                 }
 360
 361         if (type != ALTER_NONE && type != ALTER_DESATURATE)
 362                 {
 363                 if (imd->image_fd->user_orientation == 0) file_data_ref(imd->image_fd);
 364                 imd->image_fd->user_orientation = imd->orientation;
 365                 }
 366         else
 367                 {
 368                 if (imd->image_fd->user_orientation != 0) file_data_unref(imd->image_fd);
 369                 imd->image_fd->user_orientation = 0;
 370                 }
 371
 372         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 373         if (imd->cm || imd->desaturate)
 374                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 375         else
 376                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 377 }
 378
 379
 380 /*
 381  *-------------------------------------------------------------------
 382  * read ahead (prebuffer)
 383  *-------------------------------------------------------------------
 384  */
 385
 386 static void image_read_ahead_cancel(ImageWindow *imd)
 387 {
 388         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 389
 390         image_loader_free(imd->read_ahead_il);
 391         imd->read_ahead_il = NULL;
 392
 393         file_data_unref(imd->read_ahead_fd);
 394         imd->read_ahead_fd = NULL;
 395 }
 396
 397 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 398 {
 399         ImageWindow *imd = data;
 400
 401         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 402
 403         if (!imd->read_ahead_fd->pixbuf)
 404                 {
 405                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 406                 if (imd->read_ahead_fd->pixbuf)
 407                         {
 408                         g_object_ref(imd->read_ahead_fd->pixbuf);
 409                         image_cache_set(imd, imd->read_ahead_fd);
 410                         }
 411                 }
 412         image_loader_free(imd->read_ahead_il);
 413         imd->read_ahead_il = NULL;
 414
 415         image_complete_util(imd, TRUE);
 416 }
 417
 418 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 419 {
 420         /* we even treat errors as success, maybe at least some of the file was ok */
 421         image_read_ahead_done_cb(il, data);
 422 }
 423
 424 static void image_read_ahead_start(ImageWindow *imd)
 425 {
 426         /* already started ? */
 427         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 428
 429         /* still loading ?, do later */
 430         if (imd->il /*|| imd->cm*/) return;
 431
 432         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 433
 434         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 435
 436         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 437
 438         g_signal_connect (G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 439         g_signal_connect (G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 440
 441         if (!image_loader_start(imd->read_ahead_il))
 442                 {
 443                 image_read_ahead_cancel(imd);
 444                 image_complete_util(imd, TRUE);
 445                 }
 446 }
 447
 448 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 449 {
 450         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 451
 452         image_read_ahead_cancel(imd);
 453
 454         imd->read_ahead_fd = file_data_ref(fd);
 455
 456         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 457
 458         image_read_ahead_start(imd);
 459 }
 460
 461 /*
 462  *-------------------------------------------------------------------
 463  * post buffering
 464  *-------------------------------------------------------------------
 465  */
 466
 467 static void image_cache_release_cb(FileData *fd)
 468 {
 469         g_object_unref(fd->pixbuf);
 470         fd->pixbuf = NULL;
 471 }
 472
 473 static FileCacheData *image_get_cache()
 474 {
 475         static FileCacheData *cache = NULL;
 476         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 477         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 478         return cache;
 479 }
 480
 481 static void image_cache_set(ImageWindow *imd, FileData *fd)
 482 {
 483         g_assert(fd->pixbuf);
 484
 485         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 486 }
 487
 488 static gint image_cache_get(ImageWindow *imd)
 489 {
 490         gint success;
 491
 492         success = file_cache_get(image_get_cache(), imd->image_fd);
 493         if (success)
 494                 {
 495                 g_assert(imd->image_fd->pixbuf);
 496                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 497                 }
 498
 499         file_cache_dump(image_get_cache());
 500         return success;
 501 }
 502
 503 /*
 504  *-------------------------------------------------------------------
 505  * loading
 506  *-------------------------------------------------------------------
 507  */
 508
 509 static void image_load_pixbuf_ready(ImageWindow *imd)
 510 {
 511         if (image_get_pixbuf(imd) || !imd->il) return;
 512
 513         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 514 }
 515
 516 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 517 {
 518         ImageWindow *imd = data;
 519         PixbufRenderer *pr;
 520
 521         pr = (PixbufRenderer *)imd->pr;
 522
 523         if (imd->delay_flip &&
 524             pr->pixbuf != image_loader_get_pixbuf(il))
 525                 {
 526                 return;
 527                 }
 528
 529         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 530
 531         pixbuf_renderer_area_changed(pr, x, y, w, h);
 532 }
 533
 534 static void image_load_done_cb(ImageLoader *il, gpointer data)
 535 {
 536         ImageWindow *imd = data;
 537
 538         DEBUG_1("%s image done", get_exec_time());
 539
 540         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 541         image_state_unset(imd, IMAGE_STATE_LOADING);
 542
 543         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 544                 {
 545                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
 546                 image_cache_set(imd, imd->image_fd);
 547                 }
 548
 549         if (!image_loader_get_pixbuf(imd->il))
 550                 {
 551                 GdkPixbuf *pixbuf;
 552
 553                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 554                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 555                 g_object_unref(pixbuf);
 556
 557                 imd->unknown = TRUE;
 558                 }
 559         else if (imd->delay_flip &&
 560             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 561                 {
 562                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 563                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 564                 }
 565
 566         image_loader_free(imd->il);
 567         imd->il = NULL;
 568
 569 //      image_post_process(imd, TRUE);
 570
 571         image_read_ahead_start(imd);
 572 }
 573
 574 static void image_load_error_cb(ImageLoader *il, gpointer data)
 575 {
 576         DEBUG_1("%s image error", get_exec_time());
 577
 578         /* even on error handle it like it was done,
 579          * since we have a pixbuf with _something_ */
 580
 581         image_load_done_cb(il, data);
 582 }
 583
 584 /* this read ahead is located here merely for the callbacks, above */
 585
 586 static gint image_read_ahead_check(ImageWindow *imd)
 587 {
 588         if (!imd->read_ahead_fd) return FALSE;
 589         if (imd->il) return FALSE;
 590
 591         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 592                 {
 593                 image_read_ahead_cancel(imd);
 594                 return FALSE;
 595                 }
 596
 597         if (imd->read_ahead_il)
 598                 {
 599                 imd->il = imd->read_ahead_il;
 600                 imd->read_ahead_il = NULL;
 601
 602                 /* override the old signals */
 603                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 604                 g_signal_connect (G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 605                 g_signal_connect (G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 606                 g_signal_connect (G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 607
 608                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 609                 image_state_set(imd, IMAGE_STATE_LOADING);
 610
 611                 if (!imd->delay_flip)
 612                         {
 613                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 614                         }
 615
 616                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 617
 618                 file_data_unref(imd->read_ahead_fd);
 619                 imd->read_ahead_fd = NULL;
 620                 return TRUE;
 621                 }
 622         else if (imd->read_ahead_fd->pixbuf)
 623                 {
 624                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
 625
 626                 file_data_unref(imd->read_ahead_fd);
 627                 imd->read_ahead_fd = NULL;
 628
 629 //              image_post_process(imd, FALSE);
 630                 return TRUE;
 631                 }
 632
 633         image_read_ahead_cancel(imd);
 634         return FALSE;
 635 }
 636
 637 static gint image_load_begin(ImageWindow *imd, FileData *fd)
 638 {
 639         DEBUG_1("%s image begin", get_exec_time());
 640
 641         if (imd->il) return FALSE;
 642
 643         imd->completed = FALSE;
 644         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 645
 646         if (image_cache_get(imd))
 647                 {
 648                 DEBUG_1("from cache: %s", imd->image_fd->path);
 649                 return TRUE;
 650                 }
 651
 652         if (image_read_ahead_check(imd))
 653                 {
 654                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 655                 return TRUE;
 656                 }
 657
 658         if (!imd->delay_flip && image_get_pixbuf(imd))
 659                 {
 660                 PixbufRenderer *pr;
 661
 662                 pr = PIXBUF_RENDERER(imd->pr);
 663                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 664                 pr->pixbuf = NULL;
 665                 }
 666
 667         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 668
 669         imd->il = image_loader_new(fd);
 670
 671         g_signal_connect (G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 672         g_signal_connect (G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 673         g_signal_connect (G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 674
 675         if (!image_loader_start(imd->il))
 676                 {
 677                 DEBUG_1("image start error");
 678
 679                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 680
 681                 image_loader_free(imd->il);
 682                 imd->il = NULL;
 683
 684                 image_complete_util(imd, FALSE);
 685
 686                 return FALSE;
 687                 }
 688
 689         image_state_set(imd, IMAGE_STATE_LOADING);
 690
 691 /*
 692         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
 693                 {
 694                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 695                 }
 696 */
 697         return TRUE;
 698 }
 699
 700 static void image_reset(ImageWindow *imd)
 701 {
 702         /* stops anything currently being done */
 703
 704         DEBUG_1("%s image reset", get_exec_time());
 705
 706         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 707
 708         image_loader_free(imd->il);
 709         imd->il = NULL;
 710
 711         color_man_free((ColorMan *)imd->cm);
 712         imd->cm = NULL;
 713
 714         imd->delay_alter_type = ALTER_NONE;
 715
 716         image_state_set(imd, IMAGE_STATE_NONE);
 717 }
 718
 719 /*
 720  *-------------------------------------------------------------------
 721  * image changer
 722  *-------------------------------------------------------------------
 723  */
 724
 725 static void image_change_complete(ImageWindow *imd, gdouble zoom, gint new)
 726 {
 727         image_reset(imd);
 728
 729         if (imd->image_fd && isfile(imd->image_fd->path))
 730                 {
 731                 PixbufRenderer *pr;
 732
 733                 pr = PIXBUF_RENDERER(imd->pr);
 734                 pr->zoom = zoom;        /* store the zoom, needed by the loader */
 735
 736                 if (image_load_begin(imd, imd->image_fd))
 737                         {
 738                         imd->unknown = FALSE;
 739                         }
 740                 else
 741                         {
 742                         GdkPixbuf *pixbuf;
 743
 744                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 745                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 746                         g_object_unref(pixbuf);
 747
 748                         imd->unknown = TRUE;
 749                         }
 750                 }
 751         else
 752                 {
 753                 if (imd->image_fd)
 754                         {
 755                         GdkPixbuf *pixbuf;
 756
 757                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 758                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 759                         g_object_unref(pixbuf);
 760                         }
 761                 else
 762                         {
 763                         image_change_pixbuf(imd, NULL, zoom, FALSE);
 764                         }
 765                 imd->unknown = TRUE;
 766                 }
 767
 768         image_update_util(imd);
 769 }
 770
 771 static void image_change_real(ImageWindow *imd, FileData *fd,
 772                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 773 {
 774
 775         imd->collection = cd;
 776         imd->collection_info = info;
 777
 778         if (imd->auto_refresh && imd->image_fd)
 779                 file_data_unregister_real_time_monitor(imd->image_fd);
 780
 781         file_data_unref(imd->image_fd);
 782         imd->image_fd = file_data_ref(fd);
 783
 784
 785         image_change_complete(imd, zoom, TRUE);
 786
 787         image_update_title(imd);
 788         image_state_set(imd, IMAGE_STATE_IMAGE);
 789
 790         if (imd->auto_refresh && imd->image_fd)
 791                 file_data_register_real_time_monitor(imd->image_fd);
 792 }
 793
 794 /*
 795  *-------------------------------------------------------------------
 796  * focus stuff
 797  *-------------------------------------------------------------------
 798  */
 799
 800 static void image_focus_paint(ImageWindow *imd, gint has_focus, GdkRectangle *area)
 801 {
 802         GtkWidget *widget;
 803
 804         widget = imd->widget;
 805         if (!widget->window) return;
 806
 807         if (has_focus)
 808                 {
 809                 gtk_paint_focus(widget->style, widget->window, GTK_STATE_ACTIVE,
 810                                 area, widget, "image_window",
 811                                 widget->allocation.x, widget->allocation.y,
 812                                 widget->allocation.width - 1, widget->allocation.height - 1);
 813                 }
 814         else
 815                 {
 816                 gtk_paint_shadow(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
 817                                  area, widget, "image_window",
 818                                  widget->allocation.x, widget->allocation.y,
 819                                  widget->allocation.width - 1, widget->allocation.height - 1);
 820                 }
 821 }
 822
 823 static gint image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 824 {
 825         ImageWindow *imd = data;
 826
 827         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 828         return TRUE;
 829 }
 830
 831 static gint image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 832 {
 833         ImageWindow *imd = data;
 834
 835         GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 836         image_focus_paint(imd, TRUE, NULL);
 837
 838         return TRUE;
 839 }
 840
 841 static gint image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 842 {
 843         ImageWindow *imd = data;
 844
 845         GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 846         image_focus_paint(imd, FALSE, NULL);
 847
 848         return TRUE;
 849 }
 850
 851 static gint image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 852 {
 853         ImageWindow *imd = data;
 854
 855         if (imd->func_scroll &&
 856             event && event->type == GDK_SCROLL)
 857                 {
 858                 imd->func_scroll(imd, event, imd->data_scroll);
 859                 return TRUE;
 860                 }
 861
 862         return FALSE;
 863 }
 864
 865 /*
 866  *-------------------------------------------------------------------
 867  * public interface
 868  *-------------------------------------------------------------------
 869  */
 870
 871 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 872                          const gchar *title, const gchar *title_right, gint show_zoom)
 873 {
 874         imd->top_window = window;
 875         g_free(imd->title);
 876         imd->title = g_strdup(title);
 877         g_free(imd->title_right);
 878         imd->title_right = g_strdup(title_right);
 879         imd->title_show_zoom = show_zoom;
 880
 881         if (!options->image.fit_window_to_image) window = NULL;
 882
 883         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 884
 885         image_update_title(imd);
 886 }
 887
 888 void image_set_update_func(ImageWindow *imd,
 889                            void (*func)(ImageWindow *imd, gpointer data),
 890                            gpointer data)
 891 {
 892         imd->func_update = func;
 893         imd->data_update = data;
 894 }
 895
 896 void image_set_complete_func(ImageWindow *imd,
 897                              void (*func)(ImageWindow *imd, gint preload, gpointer data),
 898                              gpointer data)
 899 {
 900         imd->func_complete = func;
 901         imd->data_complete = data;
 902 }
 903
 904 void image_set_state_func(ImageWindow *imd,
 905                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 906                         gpointer data)
 907 {
 908         imd->func_state = func;
 909         imd->data_state = data;
 910 }
 911
 912
 913 void image_set_button_func(ImageWindow *imd,
 914                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
 915                            gpointer data)
 916 {
 917         imd->func_button = func;
 918         imd->data_button = data;
 919 }
 920
 921 void image_set_drag_func(ImageWindow *imd,
 922                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
 923                            gpointer data)
 924 {
 925         imd->func_drag = func;
 926         imd->data_drag = data;
 927 }
 928
 929 void image_set_scroll_func(ImageWindow *imd,
 930                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
 931                            gpointer data)
 932 {
 933         imd->func_scroll = func;
 934         imd->data_scroll = data;
 935 }
 936
 937 void image_set_scroll_notify_func(ImageWindow *imd,
 938                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
 939                                   gpointer data)
 940 {
 941         imd->func_scroll_notify = func;
 942         imd->data_scroll_notify = data;
 943 }
 944
 945 /* path, name */
 946
 947 const gchar *image_get_path(ImageWindow *imd)
 948 {
 949         if (imd->image_fd == NULL) return NULL;
 950         return imd->image_fd->path;
 951 }
 952
 953 const gchar *image_get_name(ImageWindow *imd)
 954 {
 955         if (imd->image_fd == NULL) return NULL;
 956         return imd->image_fd->name;
 957 }
 958
 959 FileData *image_get_fd(ImageWindow *imd)
 960 {
 961         return imd->image_fd;
 962 }
 963
 964 /* merely changes path string, does not change the image! */
 965 void image_set_fd(ImageWindow *imd, FileData *fd)
 966 {
 967         if (imd->auto_refresh && imd->image_fd)
 968                 file_data_unregister_real_time_monitor(imd->image_fd);
 969
 970         file_data_unref(imd->image_fd);
 971         imd->image_fd = file_data_ref(fd);
 972
 973         image_update_title(imd);
 974         image_state_set(imd, IMAGE_STATE_IMAGE);
 975
 976         if (imd->auto_refresh && imd->image_fd)
 977                 file_data_register_real_time_monitor(imd->image_fd);
 978 }
 979
 980 /* load a new image */
 981
 982 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
 983 {
 984         if (imd->image_fd == fd) return;
 985
 986         image_change_real(imd, fd, NULL, NULL, zoom);
 987 }
 988
 989 gint image_get_image_size(ImageWindow *imd, gint *width, gint *height)
 990 {
 991         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
 992 }
 993
 994 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
 995 {
 996         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
 997 }
 998
 999 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gint lazy)
1000 {
1001
1002         ExifData *exif = NULL;
1003         gint read_exif_for_color_profile = (imd->color_profile_enable && imd->color_profile_use_image);
1004         gint read_exif_for_orientation = FALSE;
1005
1006         if (imd->image_fd && imd->image_fd->user_orientation)
1007                 imd->orientation = imd->image_fd->user_orientation;
1008         else if (options->image.exif_rotate_enable)
1009                 read_exif_for_orientation = TRUE;
1010
1011         if (read_exif_for_color_profile || read_exif_for_orientation)
1012                 {
1013                 gint orientation;
1014
1015                 exif = exif_read_fd(imd->image_fd);
1016
1017                 if (exif && read_exif_for_orientation)
1018                         {
1019                         if (exif_get_integer(exif, "Exif.Image.Orientation", &orientation))
1020                                 imd->orientation = orientation;
1021                         else
1022                                 imd->orientation = 1;
1023                         imd->image_fd->exif_orientation = imd->orientation;
1024                         }
1025                 }
1026
1027         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1028         if (imd->cm)
1029                 {
1030                 color_man_free(imd->cm);
1031                 imd->cm = NULL;
1032                 }
1033
1034         if (lazy)
1035                 {
1036                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation);
1037                 }
1038         else
1039                 {
1040                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1041                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1042                 }
1043
1044         if (imd->color_profile_enable)
1045                 {
1046                 if (!image_post_process_color(imd, 0, exif, FALSE))
1047                         {
1048                         /* fixme: note error to user */
1049 //                      image_state_set(imd, IMAGE_STATE_COLOR_ADJ);
1050                         }
1051                 }
1052
1053         if (read_exif_for_color_profile || read_exif_for_orientation)
1054                 exif_free_fd(imd->image_fd, exif);
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, gint 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
1663                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1664                 gtk_widget_show(imd->frame);
1665                 }
1666         else
1667                 {
1668 #if GTK_CHECK_VERSION(2,12,0)
1669                 g_object_ref(imd->pr);
1670 #else
1671                 gtk_widget_ref(imd->pr);
1672 #endif
1673                 if (imd->frame)
1674                         {
1675                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1676                         gtk_widget_destroy(imd->frame);
1677                         imd->frame = NULL;
1678                         }
1679                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1680
1681 #if GTK_CHECK_VERSION(2,12,0)
1682         g_object_unref(imd->pr);
1683 #else
1684         gtk_widget_unref(imd->pr);
1685 #endif
1686                 }
1687
1688         gtk_widget_show(imd->pr);
1689
1690         imd->has_frame = frame;
1691 }
1692
1693 ImageWindow *image_new(gint frame)
1694 {
1695         ImageWindow *imd;
1696
1697         imd = g_new0(ImageWindow, 1);
1698
1699         imd->top_window = NULL;
1700         imd->title = NULL;
1701         imd->title_right = NULL;
1702         imd->title_show_zoom = FALSE;
1703
1704         imd->unknown = TRUE;
1705
1706         imd->has_frame = -1; /* not initialized; for image_set_frame */
1707         imd->top_window_sync = FALSE;
1708
1709         imd->delay_alter_type = ALTER_NONE;
1710
1711         imd->read_ahead_il = NULL;
1712         imd->read_ahead_fd = NULL;
1713
1714         imd->completed = FALSE;
1715         imd->state = IMAGE_STATE_NONE;
1716
1717         imd->color_profile_enable = FALSE;
1718         imd->color_profile_input = 0;
1719         imd->color_profile_screen = 0;
1720         imd->color_profile_use_image = FALSE;
1721         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1722
1723         imd->auto_refresh = FALSE;
1724
1725         imd->delay_flip = FALSE;
1726
1727         imd->func_update = NULL;
1728         imd->func_complete = NULL;
1729         imd->func_tile_request = NULL;
1730         imd->func_tile_dispose = NULL;
1731
1732         imd->func_button = NULL;
1733         imd->func_scroll = NULL;
1734
1735         imd->orientation = 1;
1736
1737         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1738
1739         image_options_set(imd);
1740
1741
1742         imd->widget = gtk_vbox_new(0, 0);
1743
1744         image_set_frame(imd, frame);
1745
1746         image_set_selectable(imd, 0);
1747
1748         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1749                          G_CALLBACK(image_click_cb), imd);
1750         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1751                          G_CALLBACK(image_scroll_notify_cb), imd);
1752
1753         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1754                          G_CALLBACK(image_scroll_cb), imd);
1755
1756         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1757                          G_CALLBACK(image_destroy_cb), imd);
1758
1759         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1760                          G_CALLBACK(image_zoom_cb), imd);
1761         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1762                          G_CALLBACK(image_render_complete_cb), imd);
1763         g_signal_connect(G_OBJECT(imd->pr), "drag",
1764                          G_CALLBACK(image_drag_cb), imd);
1765
1766         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1767
1768         image_list = g_list_append(image_list, imd);
1769
1770         return imd;
1771 }