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         guchar *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         g_signal_connect (G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 455         g_signal_connect (G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 456
 457         if (!image_loader_start(imd->read_ahead_il))
 458                 {
 459                 image_read_ahead_cancel(imd);
 460                 image_complete_util(imd, TRUE);
 461                 }
 462 }
 463
 464 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 465 {
 466         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 467
 468         image_read_ahead_cancel(imd);
 469
 470         imd->read_ahead_fd = file_data_ref(fd);
 471
 472         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 473
 474         image_read_ahead_start(imd);
 475 }
 476
 477 /*
 478  *-------------------------------------------------------------------
 479  * post buffering
 480  *-------------------------------------------------------------------
 481  */
 482
 483 static void image_cache_release_cb(FileData *fd)
 484 {
 485         g_object_unref(fd->pixbuf);
 486         fd->pixbuf = NULL;
 487 }
 488
 489 static FileCacheData *image_get_cache()
 490 {
 491         static FileCacheData *cache = NULL;
 492         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 493         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 494         return cache;
 495 }
 496
 497 static void image_cache_set(ImageWindow *imd, FileData *fd)
 498 {
 499         g_assert(fd->pixbuf);
 500
 501         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 502 }
 503
 504 static gint image_cache_get(ImageWindow *imd)
 505 {
 506         gint success;
 507
 508         success = file_cache_get(image_get_cache(), imd->image_fd);
 509         if (success)
 510                 {
 511                 g_assert(imd->image_fd->pixbuf);
 512                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd));
 513                 }
 514
 515         file_cache_dump(image_get_cache());
 516         return success;
 517 }
 518
 519 /*
 520  *-------------------------------------------------------------------
 521  * loading
 522  *-------------------------------------------------------------------
 523  */
 524
 525 static void image_load_pixbuf_ready(ImageWindow *imd)
 526 {
 527         if (image_get_pixbuf(imd) || !imd->il) return;
 528
 529         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd));
 530 }
 531
 532 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 533 {
 534         ImageWindow *imd = data;
 535         PixbufRenderer *pr;
 536
 537         pr = (PixbufRenderer *)imd->pr;
 538
 539         if (imd->delay_flip &&
 540             pr->pixbuf != image_loader_get_pixbuf(il))
 541                 {
 542                 return;
 543                 }
 544
 545         if (!pr->pixbuf) image_load_pixbuf_ready(imd);
 546
 547         pixbuf_renderer_area_changed(pr, x, y, w, h);
 548 }
 549
 550 static void image_load_done_cb(ImageLoader *il, gpointer data)
 551 {
 552         ImageWindow *imd = data;
 553
 554         DEBUG_1("%s image done", get_exec_time());
 555
 556         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 557         image_state_unset(imd, IMAGE_STATE_LOADING);
 558
 559         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 560                 {
 561                 imd->image_fd->pixbuf = gdk_pixbuf_ref(image_loader_get_pixbuf(imd->il));
 562                 image_cache_set(imd, imd->image_fd);
 563                 }
 564
 565         if (imd->delay_flip &&
 566             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 567                 {
 568                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 569                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd));
 570                 }
 571
 572         image_loader_free(imd->il);
 573         imd->il = NULL;
 574
 575 //      image_post_process(imd, TRUE);
 576
 577         image_read_ahead_start(imd);
 578 }
 579
 580 static void image_load_error_cb(ImageLoader *il, gpointer data)
 581 {
 582         DEBUG_1("%s image error", get_exec_time());
 583
 584         /* even on error handle it like it was done,
 585          * since we have a pixbuf with _something_ */
 586
 587         image_load_done_cb(il, data);
 588 }
 589
 590 #ifdef IMAGE_THROTTLE_LARGER_IMAGES
 591 static void image_load_buffer_throttle(ImageLoader *il)
 592 {
 593         if (!il || il->bytes_total < IMAGE_THROTTLE_THRESHOLD) return;
 594
 595         /* Larger image files usually have larger chunks of data per pixel...
 596          * So increase the buffer read size so that the rendering chunks called
 597          * are also larger.
 598          */
 599
 600         image_loader_set_buffer_size(il, IMAGE_LOAD_BUFFER_COUNT * IMAGE_THROTTLE_FACTOR);
 601 }
 602 #endif
 603
 604 /* this read ahead is located here merely for the callbacks, above */
 605
 606 static gint image_read_ahead_check(ImageWindow *imd)
 607 {
 608         if (!imd->read_ahead_fd) return FALSE;
 609         if (imd->il) return FALSE;
 610
 611         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 612                 {
 613                 image_read_ahead_cancel(imd);
 614                 return FALSE;
 615                 }
 616
 617         if (imd->read_ahead_il)
 618                 {
 619                 imd->il = imd->read_ahead_il;
 620                 imd->read_ahead_il = NULL;
 621
 622                 /* override the old signals */
 623                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 624                 g_signal_connect (G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 625                 g_signal_connect (G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 626                 g_signal_connect (G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 627                 image_loader_set_buffer_size(imd->il, IMAGE_LOAD_BUFFER_COUNT);
 628
 629 #ifdef IMAGE_THROTTLE_LARGER_IMAGES
 630                 image_load_buffer_throttle(imd->il);
 631 #endif
 632
 633                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 634                 image_state_set(imd, IMAGE_STATE_LOADING);
 635
 636                 if (!imd->delay_flip)
 637                         {
 638                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd));
 639                         }
 640
 641                 file_data_unref(imd->read_ahead_fd);
 642                 imd->read_ahead_fd = NULL;
 643                 return TRUE;
 644                 }
 645         else if (imd->read_ahead_fd->pixbuf)
 646                 {
 647                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd));
 648
 649                 file_data_unref(imd->read_ahead_fd);
 650                 imd->read_ahead_fd = NULL;
 651
 652 //              image_post_process(imd, FALSE);
 653                 return TRUE;
 654                 }
 655
 656         image_read_ahead_cancel(imd);
 657         return FALSE;
 658 }
 659
 660 static gint image_load_begin(ImageWindow *imd, FileData *fd)
 661 {
 662         DEBUG_1("%s image begin", get_exec_time());
 663
 664         if (imd->il) return FALSE;
 665
 666         imd->completed = FALSE;
 667         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 668
 669         if (image_cache_get(imd))
 670                 {
 671                 DEBUG_1("from cache: %s", imd->image_fd->path);
 672                 return TRUE;
 673                 }
 674
 675         if (image_read_ahead_check(imd))
 676                 {
 677                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 678                 return TRUE;
 679                 }
 680
 681         if (!imd->delay_flip && image_get_pixbuf(imd))
 682                 {
 683                 PixbufRenderer *pr;
 684
 685                 pr = PIXBUF_RENDERER(imd->pr);
 686                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 687                 pr->pixbuf = NULL;
 688                 }
 689
 690         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 691
 692         imd->il = image_loader_new(fd);
 693
 694         g_signal_connect (G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 695         g_signal_connect (G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 696         g_signal_connect (G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 697         image_loader_set_buffer_size(imd->il, IMAGE_LOAD_BUFFER_COUNT);
 698
 699         if (!image_loader_start(imd->il))
 700                 {
 701                 DEBUG_1("image start error");
 702
 703                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 704
 705                 image_loader_free(imd->il);
 706                 imd->il = NULL;
 707
 708                 image_complete_util(imd, FALSE);
 709
 710                 return FALSE;
 711                 }
 712
 713         image_state_set(imd, IMAGE_STATE_LOADING);
 714
 715 #ifdef IMAGE_THROTTLE_LARGER_IMAGES
 716         image_load_buffer_throttle(imd->il);
 717 #endif
 718
 719         if (!imd->delay_flip && !image_get_pixbuf(imd)) image_load_pixbuf_ready(imd);
 720
 721         return TRUE;
 722 }
 723
 724 static void image_reset(ImageWindow *imd)
 725 {
 726         /* stops anything currently being done */
 727
 728         DEBUG_1("%s image reset", get_exec_time());
 729
 730         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 731
 732         image_loader_free(imd->il);
 733         imd->il = NULL;
 734
 735         color_man_free((ColorMan *)imd->cm);
 736         imd->cm = NULL;
 737
 738         imd->delay_alter_type = ALTER_NONE;
 739
 740         image_state_set(imd, IMAGE_STATE_NONE);
 741 }
 742
 743 /*
 744  *-------------------------------------------------------------------
 745  * image changer
 746  *-------------------------------------------------------------------
 747  */
 748
 749 static void image_change_complete(ImageWindow *imd, gdouble zoom, gint new)
 750 {
 751         image_reset(imd);
 752
 753         if (imd->image_fd && isfile(imd->image_fd->path))
 754                 {
 755                 PixbufRenderer *pr;
 756
 757                 pr = PIXBUF_RENDERER(imd->pr);
 758                 pr->zoom = zoom;        /* store the zoom, needed by the loader */
 759
 760                 if (image_load_begin(imd, imd->image_fd))
 761                         {
 762                         imd->unknown = FALSE;
 763                         }
 764                 else
 765                         {
 766                         GdkPixbuf *pixbuf;
 767
 768                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 769                         image_change_pixbuf(imd, pixbuf, zoom);
 770                         g_object_unref(pixbuf);
 771
 772                         imd->unknown = TRUE;
 773                         }
 774                 }
 775         else
 776                 {
 777                 if (imd->image_fd)
 778                         {
 779                         GdkPixbuf *pixbuf;
 780
 781                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 782                         image_change_pixbuf(imd, pixbuf, zoom);
 783                         g_object_unref(pixbuf);
 784                         }
 785                 else
 786                         {
 787                         image_change_pixbuf(imd, NULL, zoom);
 788                         }
 789                 imd->unknown = TRUE;
 790                 }
 791
 792         image_update_util(imd);
 793 }
 794
 795 static void image_change_real(ImageWindow *imd, FileData *fd,
 796                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 797 {
 798
 799         imd->collection = cd;
 800         imd->collection_info = info;
 801
 802         if (imd->auto_refresh && imd->image_fd)
 803                 file_data_unregister_real_time_monitor(imd->image_fd);
 804
 805         file_data_unref(imd->image_fd);
 806         imd->image_fd = file_data_ref(fd);
 807
 808
 809         image_change_complete(imd, zoom, TRUE);
 810
 811         image_update_title(imd);
 812         image_state_set(imd, IMAGE_STATE_IMAGE);
 813
 814         if (imd->auto_refresh && imd->image_fd)
 815                 file_data_register_real_time_monitor(imd->image_fd);
 816 }
 817
 818 /*
 819  *-------------------------------------------------------------------
 820  * focus stuff
 821  *-------------------------------------------------------------------
 822  */
 823
 824 static void image_focus_paint(ImageWindow *imd, gint has_focus, GdkRectangle *area)
 825 {
 826         GtkWidget *widget;
 827
 828         widget = imd->widget;
 829         if (!widget->window) return;
 830
 831         if (has_focus)
 832                 {
 833                 gtk_paint_focus(widget->style, widget->window, GTK_STATE_ACTIVE,
 834                                 area, widget, "image_window",
 835                                 widget->allocation.x, widget->allocation.y,
 836                                 widget->allocation.width - 1, widget->allocation.height - 1);
 837                 }
 838         else
 839                 {
 840                 gtk_paint_shadow(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
 841                                  area, widget, "image_window",
 842                                  widget->allocation.x, widget->allocation.y,
 843                                  widget->allocation.width - 1, widget->allocation.height - 1);
 844                 }
 845 }
 846
 847 static gint image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 848 {
 849         ImageWindow *imd = data;
 850
 851         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 852         return TRUE;
 853 }
 854
 855 static gint image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 856 {
 857         ImageWindow *imd = data;
 858
 859         GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 860         image_focus_paint(imd, TRUE, NULL);
 861
 862         return TRUE;
 863 }
 864
 865 static gint image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 866 {
 867         ImageWindow *imd = data;
 868
 869         GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 870         image_focus_paint(imd, FALSE, NULL);
 871
 872         return TRUE;
 873 }
 874
 875 static gint image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 876 {
 877         ImageWindow *imd = data;
 878
 879         if (imd->func_scroll &&
 880             event && event->type == GDK_SCROLL)
 881                 {
 882                 imd->func_scroll(imd, event, imd->data_scroll);
 883                 return TRUE;
 884                 }
 885
 886         return FALSE;
 887 }
 888
 889 /*
 890  *-------------------------------------------------------------------
 891  * public interface
 892  *-------------------------------------------------------------------
 893  */
 894
 895 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 896                          const gchar *title, const gchar *title_right, gint show_zoom)
 897 {
 898         imd->top_window = window;
 899         g_free(imd->title);
 900         imd->title = g_strdup(title);
 901         g_free(imd->title_right);
 902         imd->title_right = g_strdup(title_right);
 903         imd->title_show_zoom = show_zoom;
 904
 905         if (!options->image.fit_window_to_image) window = NULL;
 906
 907         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 908
 909         image_update_title(imd);
 910 }
 911
 912 void image_set_update_func(ImageWindow *imd,
 913                            void (*func)(ImageWindow *imd, gpointer data),
 914                            gpointer data)
 915 {
 916         imd->func_update = func;
 917         imd->data_update = data;
 918 }
 919
 920 void image_set_complete_func(ImageWindow *imd,
 921                              void (*func)(ImageWindow *imd, gint preload, gpointer data),
 922                              gpointer data)
 923 {
 924         imd->func_complete = func;
 925         imd->data_complete = data;
 926 }
 927
 928 void image_set_state_func(ImageWindow *imd,
 929                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 930                         gpointer data)
 931 {
 932         imd->func_state = func;
 933         imd->data_state = data;
 934 }
 935
 936
 937 void image_set_button_func(ImageWindow *imd,
 938                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
 939                            gpointer data)
 940 {
 941         imd->func_button = func;
 942         imd->data_button = data;
 943 }
 944
 945 void image_set_drag_func(ImageWindow *imd,
 946                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
 947                            gpointer data)
 948 {
 949         imd->func_drag = func;
 950         imd->data_drag = data;
 951 }
 952
 953 void image_set_scroll_func(ImageWindow *imd,
 954                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
 955                            gpointer data)
 956 {
 957         imd->func_scroll = func;
 958         imd->data_scroll = data;
 959 }
 960
 961 void image_set_scroll_notify_func(ImageWindow *imd,
 962                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
 963                                   gpointer data)
 964 {
 965         imd->func_scroll_notify = func;
 966         imd->data_scroll_notify = data;
 967 }
 968
 969 /* path, name */
 970
 971 const gchar *image_get_path(ImageWindow *imd)
 972 {
 973         if (imd->image_fd == NULL) return NULL;
 974         return imd->image_fd->path;
 975 }
 976
 977 const gchar *image_get_name(ImageWindow *imd)
 978 {
 979         if (imd->image_fd == NULL) return NULL;
 980         return imd->image_fd->name;
 981 }
 982
 983 FileData *image_get_fd(ImageWindow *imd)
 984 {
 985         return imd->image_fd;
 986 }
 987
 988 /* merely changes path string, does not change the image! */
 989 void image_set_fd(ImageWindow *imd, FileData *fd)
 990 {
 991         if (imd->auto_refresh && imd->image_fd)
 992                 file_data_unregister_real_time_monitor(imd->image_fd);
 993
 994         file_data_unref(imd->image_fd);
 995         imd->image_fd = file_data_ref(fd);
 996
 997         image_update_title(imd);
 998         image_state_set(imd, IMAGE_STATE_IMAGE);
 999
1000         if (imd->auto_refresh && imd->image_fd)
1001                 file_data_register_real_time_monitor(imd->image_fd);
1002 }
1003
1004 /* load a new image */
1005
1006 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1007 {
1008         if (imd->image_fd == fd) return;
1009
1010         image_change_real(imd, fd, NULL, NULL, zoom);
1011 }
1012
1013 gint image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1014 {
1015         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1016 }
1017
1018 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1019 {
1020         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1021 }
1022
1023 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom)
1024 {
1025
1026         ExifData *exif = NULL;
1027         gint read_exif_for_color_profile = (imd->color_profile_enable && imd->color_profile_use_image);
1028         gint read_exif_for_orientation = FALSE;
1029
1030         if (imd->image_fd && imd->image_fd->user_orientation)
1031                 imd->orientation = imd->image_fd->user_orientation;
1032         else if (options->image.exif_rotate_enable)
1033                 read_exif_for_orientation = TRUE;
1034
1035         if (read_exif_for_color_profile || read_exif_for_orientation)
1036                 {
1037                 gint orientation;
1038
1039                 exif = exif_read_fd(imd->image_fd);
1040
1041                 if (exif && read_exif_for_orientation)
1042                         {
1043                         if (exif_get_integer(exif, "Exif.Image.Orientation", &orientation))
1044                                 imd->orientation = orientation;
1045                         else
1046                                 imd->orientation = 1;
1047                         imd->image_fd->exif_orientation = imd->orientation;
1048                         }
1049                 }
1050
1051         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1052         if (imd->cm)
1053                 {
1054                 color_man_free(imd->cm);
1055                 imd->cm = NULL;
1056                 }
1057
1058         pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1059         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1060
1061         if (imd->color_profile_enable)
1062                 {
1063                 if (!image_post_process_color(imd, 0, exif, FALSE))
1064                         {
1065                         /* fixme: note error to user */
1066 //                      image_state_set(imd, IMAGE_STATE_COLOR_ADJ);
1067                         }
1068                 }
1069
1070         if (read_exif_for_color_profile || read_exif_for_orientation)
1071                 exif_free_fd(imd->image_fd, exif);
1072
1073         if (imd->cm || imd->desaturate)
1074                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1075
1076         image_state_set(imd, IMAGE_STATE_IMAGE);
1077 }
1078
1079 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1080 {
1081         if (!cd || !info || !g_list_find(cd->list, info)) return;
1082
1083         image_change_real(imd, info->fd, cd, info, zoom);
1084 }
1085
1086 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1087 {
1088         if (collection_to_number(imd->collection) >= 0)
1089                 {
1090                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1091                         {
1092                         if (info) *info = imd->collection_info;
1093                         }
1094                 else
1095                         {
1096                         if (info) *info = NULL;
1097                         }
1098                 return imd->collection;
1099                 }
1100
1101         if (info) *info = NULL;
1102         return NULL;
1103 }
1104
1105 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1106 {
1107         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1108                 g_signal_connect (G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1109
1110         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1111                 g_signal_connect (G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1112 }
1113
1114 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1115 {
1116         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1117                 g_signal_connect (G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1118
1119         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1120                 g_signal_connect (G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1121
1122         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1123                 g_signal_connect (G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1124 }
1125
1126 /* this is more like a move function
1127  * it moves most data from source to imd
1128  */
1129 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1130 {
1131         if (imd == source) return;
1132
1133         imd->unknown = source->unknown;
1134
1135         imd->collection = source->collection;
1136         imd->collection_info = source->collection_info;
1137
1138         image_loader_free(imd->il);
1139         imd->il = NULL;
1140
1141         image_set_fd(imd, image_get_fd(source));
1142
1143
1144         if (source->il)
1145                 {
1146                 imd->il = source->il;
1147                 source->il = NULL;
1148
1149                 image_loader_sync_data(imd->il, source, imd);
1150
1151                 imd->delay_alter_type = source->delay_alter_type;
1152                 source->delay_alter_type = ALTER_NONE;
1153                 }
1154
1155         imd->color_profile_enable = source->color_profile_enable;
1156         imd->color_profile_input = source->color_profile_input;
1157         imd->color_profile_screen = source->color_profile_screen;
1158         imd->color_profile_use_image = source->color_profile_use_image;
1159         color_man_free((ColorMan *)imd->cm);
1160         imd->cm = NULL;
1161         if (source->cm)
1162                 {
1163                 ColorMan *cm;
1164
1165                 imd->cm = source->cm;
1166                 source->cm = NULL;
1167
1168                 cm = (ColorMan *)imd->cm;
1169                 cm->imd = imd;
1170                 cm->func_done_data = imd;
1171                 }
1172
1173         image_loader_free(imd->read_ahead_il);
1174         imd->read_ahead_il = source->read_ahead_il;
1175         source->read_ahead_il = NULL;
1176         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1177
1178         file_data_unref(imd->read_ahead_fd);
1179         imd->read_ahead_fd = source->read_ahead_fd;
1180         source->read_ahead_fd = NULL;
1181
1182         imd->completed = source->completed;
1183         imd->state = source->state;
1184         source->state = IMAGE_STATE_NONE;
1185
1186         imd->orientation = source->orientation;
1187         imd->desaturate = source->desaturate;
1188
1189         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1190
1191         if (imd->cm || imd->desaturate)
1192                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1193         else
1194                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1195
1196 }
1197
1198 /* manipulation */
1199
1200 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1201 {
1202         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1203 }
1204
1205 void image_reload(ImageWindow *imd)
1206 {
1207         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1208
1209         image_change_complete(imd, image_zoom_get(imd), FALSE);
1210 }
1211
1212 void image_scroll(ImageWindow *imd, gint x, gint y)
1213 {
1214         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1215 }
1216
1217 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1218                            gdouble x_align, gdouble y_align)
1219 {
1220         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1221 }
1222
1223 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1224 {
1225         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1226 }
1227
1228 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1229 {
1230         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1231 }
1232
1233 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1234 {
1235         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1236 }
1237
1238 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1239 {
1240         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1241 }
1242
1243 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1244 {
1245         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1246 }
1247
1248 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1249 {
1250         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1251 }
1252
1253 void image_zoom_set_fill_geometry(ImageWindow *imd, gint vertical)
1254 {
1255         PixbufRenderer *pr;
1256         gdouble zoom;
1257         gint width, height;
1258
1259         pr = (PixbufRenderer *)imd->pr;
1260
1261         if (!pixbuf_renderer_get_pixbuf(pr) ||
1262             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1263
1264         if (vertical)
1265                 {
1266                 zoom = (gdouble)pr->window_height / height;
1267                 }
1268         else
1269                 {
1270                 zoom = (gdouble)pr->window_width / width;
1271                 }
1272
1273         if (zoom < 1.0)
1274                 {
1275                 zoom = 0.0 - 1.0 / zoom;
1276                 }
1277
1278         pixbuf_renderer_zoom_set(pr, zoom);
1279 }
1280
1281 gdouble image_zoom_get(ImageWindow *imd)
1282 {
1283         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1284 }
1285
1286 gdouble image_zoom_get_real(ImageWindow *imd)
1287 {
1288         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1289 }
1290
1291 gchar *image_zoom_get_as_text(ImageWindow *imd)
1292 {
1293         gdouble zoom;
1294         gdouble scale;
1295         gdouble l = 1.0;
1296         gdouble r = 1.0;
1297         gint pl = 0;
1298         gint pr = 0;
1299         gchar *approx = " ";
1300
1301         zoom = image_zoom_get(imd);
1302         scale = image_zoom_get_real(imd);
1303
1304         if (zoom > 0.0)
1305                 {
1306                 l = zoom;
1307                 }
1308         else if (zoom < 0.0)
1309                 {
1310                 r = 0.0 - zoom;
1311                 }
1312         else if (zoom == 0.0 && scale != 0.0)
1313                 {
1314                 if (scale >= 1.0)
1315                         {
1316                         l = scale;
1317                         }
1318                 else
1319                         {
1320                         r = 1.0 / scale;
1321                         }
1322                 approx = "~";
1323                 }
1324
1325         if (rint(l) != l) pl = 1;
1326         if (rint(r) != r) pr = 1;
1327
1328         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1329 }
1330
1331 gdouble image_zoom_get_default(ImageWindow *imd)
1332 {
1333         gdouble zoom = 1.0;
1334
1335         switch (options->image.zoom_mode)
1336         {
1337         case ZOOM_RESET_ORIGINAL:
1338                 break;
1339         case ZOOM_RESET_FIT_WINDOW:
1340                 zoom = 0.0;
1341                 break;
1342         case ZOOM_RESET_NONE:
1343                 if (imd) zoom = image_zoom_get(imd);
1344                 break;
1345         }
1346
1347         return zoom;
1348 }
1349
1350 /* read ahead */
1351
1352 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1353 {
1354         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1355
1356         if (fd)
1357                 {
1358                 if (!file_cache_get(image_get_cache(), fd))
1359                         {
1360                         image_read_ahead_set(imd, fd);
1361                         }
1362                 }
1363         else
1364                 {
1365                 image_read_ahead_cancel(imd);
1366                 }
1367 }
1368
1369 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1370 {
1371         ImageWindow *imd = data;
1372
1373         if (!imd || !image_get_pixbuf(imd) ||
1374             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1375             !imd->image_fd || /* nothing to reload */
1376             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1377             ) return;
1378
1379         if (type == NOTIFY_TYPE_REREAD && fd == imd->image_fd)
1380                 {
1381                 image_reload(imd);
1382                 }
1383 }
1384
1385 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1386 {
1387         if (!enable && imd->auto_refresh && imd->image_fd)
1388                 file_data_unregister_real_time_monitor(imd->image_fd);
1389
1390         if (enable && !imd->auto_refresh && imd->image_fd)
1391                 file_data_register_real_time_monitor(imd->image_fd);
1392
1393         imd->auto_refresh = enable;
1394 }
1395
1396 void image_top_window_set_sync(ImageWindow *imd, gint allow_sync)
1397 {
1398         imd->top_window_sync = allow_sync;
1399
1400         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1401 }
1402
1403 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1404 {
1405         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1406 }
1407
1408 void image_color_profile_set(ImageWindow *imd,
1409                              gint input_type, gint screen_type,
1410                              gint use_image)
1411 {
1412         if (!imd) return;
1413
1414         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS ||
1415             screen_type < 0 || screen_type > 1)
1416                 {
1417                 return;
1418                 }
1419
1420         imd->color_profile_input = input_type;
1421         imd->color_profile_screen = screen_type;
1422         imd->color_profile_use_image = use_image;
1423 }
1424
1425 gint image_color_profile_get(ImageWindow *imd,
1426                              gint *input_type, gint *screen_type,
1427                              gint *use_image)
1428 {
1429         if (!imd) return FALSE;
1430
1431         if (input_type) *input_type = imd->color_profile_input;
1432         if (screen_type) *screen_type = imd->color_profile_screen;
1433         if (use_image) *use_image = imd->color_profile_use_image;
1434
1435         return TRUE;
1436 }
1437
1438 void image_color_profile_set_use(ImageWindow *imd, gint enable)
1439 {
1440         if (!imd) return;
1441
1442         if (imd->color_profile_enable == enable) return;
1443
1444         imd->color_profile_enable = enable;
1445 }
1446
1447 gint image_color_profile_get_use(ImageWindow *imd)
1448 {
1449         if (!imd) return FALSE;
1450
1451         return imd->color_profile_enable;
1452 }
1453
1454 gint image_color_profile_get_from_image(ImageWindow *imd)
1455 {
1456         if (!imd) return FALSE;
1457
1458         return imd->color_profile_from_image;
1459 }
1460
1461 void image_set_delay_flip(ImageWindow *imd, gint delay)
1462 {
1463         if (!imd ||
1464             imd->delay_flip == delay) return;
1465
1466         imd->delay_flip = delay;
1467
1468         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1469
1470         if (!imd->delay_flip && imd->il)
1471                 {
1472                 PixbufRenderer *pr;
1473
1474                 pr = PIXBUF_RENDERER(imd->pr);
1475                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1476                 pr->pixbuf = NULL;
1477
1478                 image_load_pixbuf_ready(imd);
1479                 }
1480 }
1481
1482 void image_to_root_window(ImageWindow *imd, gint scaled)
1483 {
1484         GdkScreen *screen;
1485         GdkWindow *rootwindow;
1486         GdkPixmap *pixmap;
1487         GdkPixbuf *pixbuf;
1488         GdkPixbuf *pb;
1489         gint width, height;
1490
1491         if (!imd) return;
1492
1493         pixbuf = image_get_pixbuf(imd);
1494         if (!pixbuf) return;
1495
1496         screen = gtk_widget_get_screen(imd->widget);
1497         rootwindow = gdk_screen_get_root_window(screen);
1498         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1499
1500         if (scaled)
1501                 {
1502                 width = gdk_screen_width();
1503                 height = gdk_screen_height();
1504                 }
1505         else
1506                 {
1507                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1508                 }
1509
1510         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1511
1512         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1513         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1514         gdk_window_clear(rootwindow);
1515         g_object_unref(pb);
1516         g_object_unref(pixmap);
1517
1518         gdk_flush();
1519 }
1520
1521 void image_select(ImageWindow *imd, gboolean select)
1522 {
1523         if (imd->has_frame)
1524                 {
1525                 if (select)
1526                         {
1527                         gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1528                         gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1529                         }
1530                 else
1531                         gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1532                 }
1533 }
1534
1535
1536
1537 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1538 {
1539         if (imd->has_frame)
1540                 {
1541                 if (selectable)
1542                         {
1543                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1544                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 4);
1545                         }
1546                 else
1547                         {
1548                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1549                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 0);
1550                         }
1551                 }
1552 }
1553
1554 /*
1555  *-------------------------------------------------------------------
1556  * prefs sync
1557  *-------------------------------------------------------------------
1558  */
1559
1560 static void image_options_set(ImageWindow *imd)
1561 {
1562         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1563                                         "zoom_2pass", options->image.zoom_2pass,
1564                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1565                                         "dither_quality", options->image.dither_quality,
1566                                         "scroll_reset", options->image.scroll_reset_method,
1567                                         "cache_display", options->image.tile_cache_max,
1568                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1569                                         "window_limit", options->image.limit_window_size,
1570                                         "window_limit_value", options->image.max_window_size,
1571                                         "autofit_limit", options->image.limit_autofit_size,
1572                                         "autofit_limit_value", options->image.max_autofit_size,
1573
1574                                         NULL);
1575
1576         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1577 }
1578
1579 void image_options_sync(void)
1580 {
1581         GList *work;
1582
1583         work = image_list;
1584         while (work)
1585                 {
1586                 ImageWindow *imd;
1587
1588                 imd = work->data;
1589                 work = work->next;
1590
1591                 image_options_set(imd);
1592                 }
1593 }
1594
1595 /*
1596  *-------------------------------------------------------------------
1597  * init / destroy
1598  *-------------------------------------------------------------------
1599  */
1600
1601 static void image_free(ImageWindow *imd)
1602 {
1603         image_list = g_list_remove(image_list, imd);
1604
1605         if (imd->auto_refresh && imd->image_fd)
1606                 file_data_unregister_real_time_monitor(imd->image_fd);
1607
1608         file_data_unregister_notify_func(image_notify_cb, imd);
1609
1610         image_reset(imd);
1611
1612         image_read_ahead_cancel(imd);
1613
1614         file_data_unref(imd->image_fd);
1615         g_free(imd->title);
1616         g_free(imd->title_right);
1617         g_free(imd);
1618 }
1619
1620 static void image_destroy_cb(GtkObject *widget, gpointer data)
1621 {
1622         ImageWindow *imd = data;
1623         image_free(imd);
1624 }
1625
1626 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1627 {
1628         gtk_paint_flat_box(widget->style,
1629                            widget->window,
1630                            widget->state,
1631                            (GTK_FRAME(widget))->shadow_type,
1632                            NULL,
1633                            widget,
1634                            NULL,
1635                            widget->allocation.x + 3, widget->allocation.y + 3,
1636                            widget->allocation.width - 6, widget->allocation.height - 6);
1637
1638
1639         return FALSE;
1640 }
1641
1642
1643 void image_set_frame(ImageWindow *imd, gboolean frame)
1644 {
1645         frame = !!frame;
1646
1647         if (frame == imd->has_frame) return;
1648
1649         gtk_widget_hide(imd->pr);
1650
1651         if (frame)
1652                 {
1653                 imd->frame = gtk_frame_new(NULL);
1654                 gtk_widget_ref(imd->pr);
1655                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1656                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1657                 gtk_widget_unref(imd->pr);
1658                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1659                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1660
1661                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1662                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1663                                  G_CALLBACK(image_focus_in_cb), imd);
1664                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1665                                  G_CALLBACK(image_focus_out_cb), imd);
1666
1667                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1668                                        G_CALLBACK(image_focus_expose), imd);
1669
1670
1671                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1672                 gtk_widget_show(imd->frame);
1673                 }
1674         else
1675                 {
1676                 gtk_widget_ref(imd->pr);
1677                 if (imd->frame)
1678                         {
1679                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1680                         gtk_widget_destroy(imd->frame);
1681                         imd->frame = NULL;
1682                         }
1683                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1684                 gtk_widget_unref(imd->pr);
1685                 }
1686
1687         gtk_widget_show(imd->pr);
1688
1689         imd->has_frame = frame;
1690 }
1691
1692 ImageWindow *image_new(gint frame)
1693 {
1694         ImageWindow *imd;
1695
1696         imd = g_new0(ImageWindow, 1);
1697
1698         imd->top_window = NULL;
1699         imd->title = NULL;
1700         imd->title_right = NULL;
1701         imd->title_show_zoom = FALSE;
1702
1703         imd->unknown = TRUE;
1704
1705         imd->has_frame = -1; /* not initialized; for image_set_frame */
1706         imd->top_window_sync = FALSE;
1707
1708         imd->delay_alter_type = ALTER_NONE;
1709
1710         imd->read_ahead_il = NULL;
1711         imd->read_ahead_fd = NULL;
1712
1713         imd->completed = FALSE;
1714         imd->state = IMAGE_STATE_NONE;
1715
1716         imd->color_profile_enable = FALSE;
1717         imd->color_profile_input = 0;
1718         imd->color_profile_screen = 0;
1719         imd->color_profile_use_image = FALSE;
1720         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1721
1722         imd->auto_refresh = FALSE;
1723
1724         imd->delay_flip = FALSE;
1725
1726         imd->func_update = NULL;
1727         imd->func_complete = NULL;
1728         imd->func_tile_request = NULL;
1729         imd->func_tile_dispose = NULL;
1730
1731         imd->func_button = NULL;
1732         imd->func_scroll = NULL;
1733
1734         imd->orientation = 1;
1735
1736         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1737
1738         image_options_set(imd);
1739
1740
1741         imd->widget = gtk_vbox_new(0, 0);
1742
1743         image_set_frame(imd, frame);
1744
1745         image_set_selectable(imd, 0);
1746
1747         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1748                          G_CALLBACK(image_click_cb), imd);
1749         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1750                          G_CALLBACK(image_scroll_notify_cb), imd);
1751
1752         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1753                          G_CALLBACK(image_scroll_cb), imd);
1754
1755         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1756                          G_CALLBACK(image_destroy_cb), imd);
1757
1758         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1759                          G_CALLBACK(image_zoom_cb), imd);
1760         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1761                          G_CALLBACK(image_render_complete_cb), imd);
1762         g_signal_connect(G_OBJECT(imd->pr), "drag",
1763                          G_CALLBACK(image_drag_cb), imd);
1764
1765         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1766
1767         image_list = g_list_append(image_list, imd);
1768
1769         return imd;
1770 }