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