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