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(void)
 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         /* read_exif and similar functions can actually notice that the file has changed and triger a notification
1007         that removes the pixbuf from cache and unref it. Therefore we must ref it here before it is taken over by the renderer. */
1008         if (pixbuf) g_object_ref(pixbuf);
1009
1010         if (imd->image_fd && imd->image_fd->user_orientation)
1011                 imd->orientation = imd->image_fd->user_orientation;
1012         else if (options->image.exif_rotate_enable)
1013                 read_exif_for_orientation = TRUE;
1014
1015         if (read_exif_for_color_profile || read_exif_for_orientation)
1016                 {
1017                 gint orientation;
1018
1019                 exif = exif_read_fd(imd->image_fd);
1020
1021                 if (exif && read_exif_for_orientation)
1022                         {
1023                         if (exif_get_integer(exif, "Exif.Image.Orientation", &orientation))
1024                                 imd->orientation = orientation;
1025                         else
1026                                 imd->orientation = 1;
1027                         imd->image_fd->exif_orientation = imd->orientation;
1028                         }
1029                 }
1030
1031         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1032         if (imd->cm)
1033                 {
1034                 color_man_free(imd->cm);
1035                 imd->cm = NULL;
1036                 }
1037
1038         if (lazy)
1039                 {
1040                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation);
1041                 }
1042         else
1043                 {
1044                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1045                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1046                 }
1047
1048         if (pixbuf) g_object_unref(pixbuf);
1049
1050         if (imd->color_profile_enable)
1051                 {
1052                 if (!image_post_process_color(imd, 0, exif, FALSE))
1053                         {
1054                         /* fixme: note error to user */
1055 //                      image_state_set(imd, IMAGE_STATE_COLOR_ADJ);
1056                         }
1057                 }
1058
1059         if (read_exif_for_color_profile || read_exif_for_orientation)
1060                 exif_free_fd(imd->image_fd, exif);
1061
1062         if (imd->cm || imd->desaturate)
1063                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1064
1065         image_state_set(imd, IMAGE_STATE_IMAGE);
1066 }
1067
1068 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1069 {
1070         if (!cd || !info || !g_list_find(cd->list, info)) return;
1071
1072         image_change_real(imd, info->fd, cd, info, zoom);
1073 }
1074
1075 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1076 {
1077         if (collection_to_number(imd->collection) >= 0)
1078                 {
1079                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1080                         {
1081                         if (info) *info = imd->collection_info;
1082                         }
1083                 else
1084                         {
1085                         if (info) *info = NULL;
1086                         }
1087                 return imd->collection;
1088                 }
1089
1090         if (info) *info = NULL;
1091         return NULL;
1092 }
1093
1094 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1095 {
1096         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1097                 g_signal_connect (G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1098
1099         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1100                 g_signal_connect (G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1101 }
1102
1103 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1104 {
1105         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1106                 g_signal_connect (G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1107
1108         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1109                 g_signal_connect (G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1110
1111         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1112                 g_signal_connect (G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1113 }
1114
1115 /* this is more like a move function
1116  * it moves most data from source to imd
1117  */
1118 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1119 {
1120         if (imd == source) return;
1121
1122         imd->unknown = source->unknown;
1123
1124         imd->collection = source->collection;
1125         imd->collection_info = source->collection_info;
1126
1127         image_loader_free(imd->il);
1128         imd->il = NULL;
1129
1130         image_set_fd(imd, image_get_fd(source));
1131
1132
1133         if (source->il)
1134                 {
1135                 imd->il = source->il;
1136                 source->il = NULL;
1137
1138                 image_loader_sync_data(imd->il, source, imd);
1139
1140                 imd->delay_alter_type = source->delay_alter_type;
1141                 source->delay_alter_type = ALTER_NONE;
1142                 }
1143
1144         imd->color_profile_enable = source->color_profile_enable;
1145         imd->color_profile_input = source->color_profile_input;
1146         imd->color_profile_screen = source->color_profile_screen;
1147         imd->color_profile_use_image = source->color_profile_use_image;
1148         color_man_free((ColorMan *)imd->cm);
1149         imd->cm = NULL;
1150         if (source->cm)
1151                 {
1152                 ColorMan *cm;
1153
1154                 imd->cm = source->cm;
1155                 source->cm = NULL;
1156
1157                 cm = (ColorMan *)imd->cm;
1158                 cm->imd = imd;
1159                 cm->func_done_data = imd;
1160                 }
1161
1162         image_loader_free(imd->read_ahead_il);
1163         imd->read_ahead_il = source->read_ahead_il;
1164         source->read_ahead_il = NULL;
1165         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1166
1167         file_data_unref(imd->read_ahead_fd);
1168         imd->read_ahead_fd = source->read_ahead_fd;
1169         source->read_ahead_fd = NULL;
1170
1171         imd->completed = source->completed;
1172         imd->state = source->state;
1173         source->state = IMAGE_STATE_NONE;
1174
1175         imd->orientation = source->orientation;
1176         imd->desaturate = source->desaturate;
1177
1178         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1179
1180         if (imd->cm || imd->desaturate)
1181                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1182         else
1183                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1184
1185 }
1186
1187 /* manipulation */
1188
1189 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1190 {
1191         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1192 }
1193
1194 void image_reload(ImageWindow *imd)
1195 {
1196         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1197
1198         image_change_complete(imd, image_zoom_get(imd), FALSE);
1199 }
1200
1201 void image_scroll(ImageWindow *imd, gint x, gint y)
1202 {
1203         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1204 }
1205
1206 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1207                            gdouble x_align, gdouble y_align)
1208 {
1209         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1210 }
1211
1212 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1213 {
1214         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1215 }
1216
1217 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1218 {
1219         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1220 }
1221
1222 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1223 {
1224         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1225 }
1226
1227 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1228 {
1229         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1230 }
1231
1232 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1233 {
1234         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1235 }
1236
1237 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1238 {
1239         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1240 }
1241
1242 void image_zoom_set_fill_geometry(ImageWindow *imd, gint vertical)
1243 {
1244         PixbufRenderer *pr;
1245         gdouble zoom;
1246         gint width, height;
1247
1248         pr = (PixbufRenderer *)imd->pr;
1249
1250         if (!pixbuf_renderer_get_pixbuf(pr) ||
1251             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1252
1253         if (vertical)
1254                 {
1255                 zoom = (gdouble)pr->window_height / height;
1256                 }
1257         else
1258                 {
1259                 zoom = (gdouble)pr->window_width / width;
1260                 }
1261
1262         if (zoom < 1.0)
1263                 {
1264                 zoom = 0.0 - 1.0 / zoom;
1265                 }
1266
1267         pixbuf_renderer_zoom_set(pr, zoom);
1268 }
1269
1270 gdouble image_zoom_get(ImageWindow *imd)
1271 {
1272         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1273 }
1274
1275 gdouble image_zoom_get_real(ImageWindow *imd)
1276 {
1277         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1278 }
1279
1280 gchar *image_zoom_get_as_text(ImageWindow *imd)
1281 {
1282         gdouble zoom;
1283         gdouble scale;
1284         gdouble l = 1.0;
1285         gdouble r = 1.0;
1286         gint pl = 0;
1287         gint pr = 0;
1288         gchar *approx = " ";
1289
1290         zoom = image_zoom_get(imd);
1291         scale = image_zoom_get_real(imd);
1292
1293         if (zoom > 0.0)
1294                 {
1295                 l = zoom;
1296                 }
1297         else if (zoom < 0.0)
1298                 {
1299                 r = 0.0 - zoom;
1300                 }
1301         else if (zoom == 0.0 && scale != 0.0)
1302                 {
1303                 if (scale >= 1.0)
1304                         {
1305                         l = scale;
1306                         }
1307                 else
1308                         {
1309                         r = 1.0 / scale;
1310                         }
1311                 approx = "~";
1312                 }
1313
1314         if (rint(l) != l) pl = 1;
1315         if (rint(r) != r) pr = 1;
1316
1317         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1318 }
1319
1320 gdouble image_zoom_get_default(ImageWindow *imd)
1321 {
1322         gdouble zoom = 1.0;
1323
1324         switch (options->image.zoom_mode)
1325         {
1326         case ZOOM_RESET_ORIGINAL:
1327                 break;
1328         case ZOOM_RESET_FIT_WINDOW:
1329                 zoom = 0.0;
1330                 break;
1331         case ZOOM_RESET_NONE:
1332                 if (imd) zoom = image_zoom_get(imd);
1333                 break;
1334         }
1335
1336         return zoom;
1337 }
1338
1339 /* read ahead */
1340
1341 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1342 {
1343         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1344
1345         if (fd)
1346                 {
1347                 if (!file_cache_get(image_get_cache(), fd))
1348                         {
1349                         image_read_ahead_set(imd, fd);
1350                         }
1351                 }
1352         else
1353                 {
1354                 image_read_ahead_cancel(imd);
1355                 }
1356 }
1357
1358 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1359 {
1360         ImageWindow *imd = data;
1361
1362         if (!imd || !image_get_pixbuf(imd) ||
1363             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1364             !imd->image_fd || /* nothing to reload */
1365             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1366             ) return;
1367
1368         if (type == NOTIFY_TYPE_REREAD && fd == imd->image_fd)
1369                 {
1370                 image_reload(imd);
1371                 }
1372 }
1373
1374 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1375 {
1376         if (!enable && imd->auto_refresh && imd->image_fd)
1377                 file_data_unregister_real_time_monitor(imd->image_fd);
1378
1379         if (enable && !imd->auto_refresh && imd->image_fd)
1380                 file_data_register_real_time_monitor(imd->image_fd);
1381
1382         imd->auto_refresh = enable;
1383 }
1384
1385 void image_top_window_set_sync(ImageWindow *imd, gint allow_sync)
1386 {
1387         imd->top_window_sync = allow_sync;
1388
1389         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1390 }
1391
1392 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1393 {
1394         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1395 }
1396
1397 void image_color_profile_set(ImageWindow *imd,
1398                              gint input_type, gint screen_type,
1399                              gint use_image)
1400 {
1401         if (!imd) return;
1402
1403         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS ||
1404             screen_type < 0 || screen_type > 1)
1405                 {
1406                 return;
1407                 }
1408
1409         imd->color_profile_input = input_type;
1410         imd->color_profile_screen = screen_type;
1411         imd->color_profile_use_image = use_image;
1412 }
1413
1414 gint image_color_profile_get(ImageWindow *imd,
1415                              gint *input_type, gint *screen_type,
1416                              gint *use_image)
1417 {
1418         if (!imd) return FALSE;
1419
1420         if (input_type) *input_type = imd->color_profile_input;
1421         if (screen_type) *screen_type = imd->color_profile_screen;
1422         if (use_image) *use_image = imd->color_profile_use_image;
1423
1424         return TRUE;
1425 }
1426
1427 void image_color_profile_set_use(ImageWindow *imd, gint enable)
1428 {
1429         if (!imd) return;
1430
1431         if (imd->color_profile_enable == enable) return;
1432
1433         imd->color_profile_enable = enable;
1434 }
1435
1436 gint image_color_profile_get_use(ImageWindow *imd)
1437 {
1438         if (!imd) return FALSE;
1439
1440         return imd->color_profile_enable;
1441 }
1442
1443 gint image_color_profile_get_from_image(ImageWindow *imd)
1444 {
1445         if (!imd) return FALSE;
1446
1447         return imd->color_profile_from_image;
1448 }
1449
1450 void image_set_delay_flip(ImageWindow *imd, gint delay)
1451 {
1452         if (!imd ||
1453             imd->delay_flip == delay) return;
1454
1455         imd->delay_flip = delay;
1456
1457         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1458
1459         if (!imd->delay_flip && imd->il)
1460                 {
1461                 PixbufRenderer *pr;
1462
1463                 pr = PIXBUF_RENDERER(imd->pr);
1464                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1465                 pr->pixbuf = NULL;
1466
1467                 image_load_pixbuf_ready(imd);
1468                 }
1469 }
1470
1471 void image_to_root_window(ImageWindow *imd, gint scaled)
1472 {
1473         GdkScreen *screen;
1474         GdkWindow *rootwindow;
1475         GdkPixmap *pixmap;
1476         GdkPixbuf *pixbuf;
1477         GdkPixbuf *pb;
1478         gint width, height;
1479
1480         if (!imd) return;
1481
1482         pixbuf = image_get_pixbuf(imd);
1483         if (!pixbuf) return;
1484
1485         screen = gtk_widget_get_screen(imd->widget);
1486         rootwindow = gdk_screen_get_root_window(screen);
1487         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1488
1489         if (scaled)
1490                 {
1491                 width = gdk_screen_width();
1492                 height = gdk_screen_height();
1493                 }
1494         else
1495                 {
1496                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1497                 }
1498
1499         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1500
1501         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1502         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1503         gdk_window_clear(rootwindow);
1504         g_object_unref(pb);
1505         g_object_unref(pixmap);
1506
1507         gdk_flush();
1508 }
1509
1510 void image_select(ImageWindow *imd, gboolean select)
1511 {
1512         if (imd->has_frame)
1513                 {
1514                 if (select)
1515                         {
1516                         gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1517                         gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1518                         }
1519                 else
1520                         gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1521                 }
1522 }
1523
1524
1525
1526 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1527 {
1528         if (imd->has_frame)
1529                 {
1530                 if (selectable)
1531                         {
1532                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1533                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 4);
1534                         }
1535                 else
1536                         {
1537                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1538                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 0);
1539                         }
1540                 }
1541 }
1542
1543 /*
1544  *-------------------------------------------------------------------
1545  * prefs sync
1546  *-------------------------------------------------------------------
1547  */
1548
1549 static void image_options_set(ImageWindow *imd)
1550 {
1551         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1552                                         "zoom_2pass", options->image.zoom_2pass,
1553                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1554                                         "dither_quality", options->image.dither_quality,
1555                                         "scroll_reset", options->image.scroll_reset_method,
1556                                         "cache_display", options->image.tile_cache_max,
1557                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1558                                         "window_limit", options->image.limit_window_size,
1559                                         "window_limit_value", options->image.max_window_size,
1560                                         "autofit_limit", options->image.limit_autofit_size,
1561                                         "autofit_limit_value", options->image.max_autofit_size,
1562
1563                                         NULL);
1564
1565         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1566 }
1567
1568 void image_options_sync(void)
1569 {
1570         GList *work;
1571
1572         work = image_list;
1573         while (work)
1574                 {
1575                 ImageWindow *imd;
1576
1577                 imd = work->data;
1578                 work = work->next;
1579
1580                 image_options_set(imd);
1581                 }
1582 }
1583
1584 /*
1585  *-------------------------------------------------------------------
1586  * init / destroy
1587  *-------------------------------------------------------------------
1588  */
1589
1590 static void image_free(ImageWindow *imd)
1591 {
1592         image_list = g_list_remove(image_list, imd);
1593
1594         if (imd->auto_refresh && imd->image_fd)
1595                 file_data_unregister_real_time_monitor(imd->image_fd);
1596
1597         file_data_unregister_notify_func(image_notify_cb, imd);
1598
1599         image_reset(imd);
1600
1601         image_read_ahead_cancel(imd);
1602
1603         file_data_unref(imd->image_fd);
1604         g_free(imd->title);
1605         g_free(imd->title_right);
1606         g_free(imd);
1607 }
1608
1609 static void image_destroy_cb(GtkObject *widget, gpointer data)
1610 {
1611         ImageWindow *imd = data;
1612         image_free(imd);
1613 }
1614
1615 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1616 {
1617         gtk_paint_flat_box(widget->style,
1618                            widget->window,
1619                            widget->state,
1620                            (GTK_FRAME(widget))->shadow_type,
1621                            NULL,
1622                            widget,
1623                            NULL,
1624                            widget->allocation.x + 3, widget->allocation.y + 3,
1625                            widget->allocation.width - 6, widget->allocation.height - 6);
1626
1627
1628         return FALSE;
1629 }
1630
1631
1632 void image_set_frame(ImageWindow *imd, gboolean frame)
1633 {
1634         frame = !!frame;
1635
1636         if (frame == imd->has_frame) return;
1637
1638         gtk_widget_hide(imd->pr);
1639
1640         if (frame)
1641                 {
1642                 imd->frame = gtk_frame_new(NULL);
1643 #if GTK_CHECK_VERSION(2,12,0)
1644         g_object_ref(imd->pr);
1645 #else
1646         gtk_widget_ref(imd->pr);
1647 #endif
1648                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1649                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1650
1651 #if GTK_CHECK_VERSION(2,12,0)
1652         g_object_unref(imd->pr);
1653 #else
1654         gtk_widget_unref(imd->pr);
1655 #endif
1656                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1657                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1658
1659                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1660                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1661                                  G_CALLBACK(image_focus_in_cb), imd);
1662                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1663                                  G_CALLBACK(image_focus_out_cb), imd);
1664
1665                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1666                                        G_CALLBACK(image_focus_expose), imd);
1667
1668 #if GTK_CHECK_VERSION(2,14,0)
1669         gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1670 #else
1671         gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1672 #endif
1673         gtk_widget_show(imd->frame);
1674                 }
1675         else
1676                 {
1677 #if GTK_CHECK_VERSION(2,12,0)
1678                 g_object_ref(imd->pr);
1679 #else
1680                 gtk_widget_ref(imd->pr);
1681 #endif
1682                 if (imd->frame)
1683                         {
1684                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1685                         gtk_widget_destroy(imd->frame);
1686                         imd->frame = NULL;
1687                         }
1688 #if GTK_CHECK_VERSION(2,14,0)
1689         gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1690 #else
1691                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1692 #endif
1693
1694 #if GTK_CHECK_VERSION(2,12,0)
1695         g_object_unref(imd->pr);
1696 #else
1697         gtk_widget_unref(imd->pr);
1698 #endif
1699                 }
1700
1701         gtk_widget_show(imd->pr);
1702
1703         imd->has_frame = frame;
1704 }
1705
1706 ImageWindow *image_new(gint frame)
1707 {
1708         ImageWindow *imd;
1709
1710         imd = g_new0(ImageWindow, 1);
1711
1712         imd->top_window = NULL;
1713         imd->title = NULL;
1714         imd->title_right = NULL;
1715         imd->title_show_zoom = FALSE;
1716
1717         imd->unknown = TRUE;
1718
1719         imd->has_frame = -1; /* not initialized; for image_set_frame */
1720         imd->top_window_sync = FALSE;
1721
1722         imd->delay_alter_type = ALTER_NONE;
1723
1724         imd->read_ahead_il = NULL;
1725         imd->read_ahead_fd = NULL;
1726
1727         imd->completed = FALSE;
1728         imd->state = IMAGE_STATE_NONE;
1729
1730         imd->color_profile_enable = FALSE;
1731         imd->color_profile_input = 0;
1732         imd->color_profile_screen = 0;
1733         imd->color_profile_use_image = FALSE;
1734         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1735
1736         imd->auto_refresh = FALSE;
1737
1738         imd->delay_flip = FALSE;
1739
1740         imd->func_update = NULL;
1741         imd->func_complete = NULL;
1742         imd->func_tile_request = NULL;
1743         imd->func_tile_dispose = NULL;
1744
1745         imd->func_button = NULL;
1746         imd->func_scroll = NULL;
1747
1748         imd->orientation = 1;
1749
1750         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1751
1752         image_options_set(imd);
1753
1754
1755         imd->widget = gtk_vbox_new(0, 0);
1756
1757         image_set_frame(imd, frame);
1758
1759         image_set_selectable(imd, 0);
1760
1761         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1762                          G_CALLBACK(image_click_cb), imd);
1763         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1764                          G_CALLBACK(image_scroll_notify_cb), imd);
1765
1766         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1767                          G_CALLBACK(image_scroll_cb), imd);
1768
1769         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1770                          G_CALLBACK(image_destroy_cb), imd);
1771
1772         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1773                          G_CALLBACK(image_zoom_cb), imd);
1774         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1775                          G_CALLBACK(image_render_complete_cb), imd);
1776         g_signal_connect(G_OBJECT(imd->pr), "drag",
1777                          G_CALLBACK(image_drag_cb), imd);
1778
1779         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1780
1781         image_list = g_list_append(image_list, imd);
1782
1783         return imd;
1784 }
1785 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */