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                 }
 426         image_loader_free(imd->read_ahead_il);
 427         imd->read_ahead_il = NULL;
 428
 429         image_complete_util(imd, TRUE);
 430 }
 431
 432 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 433 {
 434         /* we even treat errors as success, maybe at least some of the file was ok */
 435         image_read_ahead_done_cb(il, data);
 436 }
 437
 438 static void image_read_ahead_start(ImageWindow *imd)
 439 {
 440         /* already started ? */
 441         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 442
 443         /* still loading ?, do later */
 444         if (imd->il /*|| imd->cm*/) return;
 445
 446         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 447
 448         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 449
 450         g_signal_connect (G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 451         g_signal_connect (G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 452
 453         if (!image_loader_start(imd->read_ahead_il))
 454                 {
 455                 image_read_ahead_cancel(imd);
 456                 image_complete_util(imd, TRUE);
 457                 }
 458 }
 459
 460 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 461 {
 462         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 463
 464         image_read_ahead_cancel(imd);
 465
 466         imd->read_ahead_fd = file_data_ref(fd);
 467
 468         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 469
 470         image_read_ahead_start(imd);
 471 }
 472
 473 /*
 474  *-------------------------------------------------------------------
 475  * post buffering
 476  *-------------------------------------------------------------------
 477  */
 478
 479 static void image_cache_release_cb(FileData *fd)
 480 {
 481         g_object_unref(fd->pixbuf);
 482         fd->pixbuf = NULL;
 483 }
 484
 485 static FileCacheData *image_get_cache()
 486 {
 487         static FileCacheData *cache = NULL;
 488         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 489         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 490         return cache;
 491 }
 492
 493 static void image_cache_set(ImageWindow *imd, FileData *fd)
 494 {
 495         g_assert(fd->pixbuf);
 496
 497         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 498 }
 499
 500 static gint image_cache_get(ImageWindow *imd)
 501 {
 502         gint success;
 503
 504         success = file_cache_get(image_get_cache(), imd->image_fd);
 505         if (success)
 506                 {
 507                 g_assert(imd->image_fd->pixbuf);
 508                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd));
 509                 }
 510
 511         file_cache_dump(image_get_cache());
 512         return success;
 513 }
 514
 515 /*
 516  *-------------------------------------------------------------------
 517  * loading
 518  *-------------------------------------------------------------------
 519  */
 520
 521 static void image_load_pixbuf_ready(ImageWindow *imd)
 522 {
 523         if (image_get_pixbuf(imd) || !imd->il) return;
 524
 525         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd));
 526 }
 527
 528 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 529 {
 530         ImageWindow *imd = data;
 531         PixbufRenderer *pr;
 532
 533         pr = (PixbufRenderer *)imd->pr;
 534
 535         if (imd->delay_flip &&
 536             pr->pixbuf != image_loader_get_pixbuf(il))
 537                 {
 538                 return;
 539                 }
 540
 541         if (!pr->pixbuf) image_load_pixbuf_ready(imd);
 542
 543         pixbuf_renderer_area_changed(pr, x, y, w, h);
 544 }
 545
 546 static void image_load_done_cb(ImageLoader *il, gpointer data)
 547 {
 548         ImageWindow *imd = data;
 549
 550         DEBUG_1("%s image done", get_exec_time());
 551
 552         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 553         image_state_unset(imd, IMAGE_STATE_LOADING);
 554
 555         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 556                 {
 557                 imd->image_fd->pixbuf = gdk_pixbuf_ref(image_loader_get_pixbuf(imd->il));
 558                 image_cache_set(imd, imd->image_fd);
 559                 }
 560
 561         if (!image_loader_get_pixbuf(imd->il))
 562                 {
 563                 GdkPixbuf *pixbuf;
 564
 565                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 566                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd));
 567                 g_object_unref(pixbuf);
 568
 569                 imd->unknown = TRUE;
 570                 }
 571         else if (imd->delay_flip &&
 572             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 573                 {
 574                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 575                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd));
 576                 }
 577
 578         image_loader_free(imd->il);
 579         imd->il = NULL;
 580
 581 //      image_post_process(imd, TRUE);
 582
 583         image_read_ahead_start(imd);
 584 }
 585
 586 static void image_load_error_cb(ImageLoader *il, gpointer data)
 587 {
 588         DEBUG_1("%s image error", get_exec_time());
 589
 590         /* even on error handle it like it was done,
 591          * since we have a pixbuf with _something_ */
 592
 593         image_load_done_cb(il, data);
 594 }
 595
 596 #ifdef IMAGE_THROTTLE_LARGER_IMAGES
 597 static void image_load_buffer_throttle(ImageLoader *il)
 598 {
 599         if (!il || il->bytes_total < IMAGE_THROTTLE_THRESHOLD) return;
 600
 601         /* Larger image files usually have larger chunks of data per pixel...
 602          * So increase the buffer read size so that the rendering chunks called
 603          * are also larger.
 604          */
 605
 606         image_loader_set_buffer_size(il, IMAGE_LOAD_BUFFER_COUNT * IMAGE_THROTTLE_FACTOR);
 607 }
 608 #endif
 609
 610 /* this read ahead is located here merely for the callbacks, above */
 611
 612 static gint image_read_ahead_check(ImageWindow *imd)
 613 {
 614         if (!imd->read_ahead_fd) return FALSE;
 615         if (imd->il) return FALSE;
 616
 617         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 618                 {
 619                 image_read_ahead_cancel(imd);
 620                 return FALSE;
 621                 }
 622
 623         if (imd->read_ahead_il)
 624                 {
 625                 imd->il = imd->read_ahead_il;
 626                 imd->read_ahead_il = NULL;
 627
 628                 /* override the old signals */
 629                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 630                 g_signal_connect (G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 631                 g_signal_connect (G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 632                 g_signal_connect (G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 633                 image_loader_set_buffer_size(imd->il, IMAGE_LOAD_BUFFER_COUNT);
 634
 635 #ifdef IMAGE_THROTTLE_LARGER_IMAGES
 636                 image_load_buffer_throttle(imd->il);
 637 #endif
 638
 639                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 640                 image_state_set(imd, IMAGE_STATE_LOADING);
 641
 642                 if (!imd->delay_flip)
 643                         {
 644                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd));
 645                         }
 646
 647                 file_data_unref(imd->read_ahead_fd);
 648                 imd->read_ahead_fd = NULL;
 649                 return TRUE;
 650                 }
 651         else if (imd->read_ahead_fd->pixbuf)
 652                 {
 653                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd));
 654
 655                 file_data_unref(imd->read_ahead_fd);
 656                 imd->read_ahead_fd = NULL;
 657
 658 //              image_post_process(imd, FALSE);
 659                 return TRUE;
 660                 }
 661
 662         image_read_ahead_cancel(imd);
 663         return FALSE;
 664 }
 665
 666 static gint image_load_begin(ImageWindow *imd, FileData *fd)
 667 {
 668         DEBUG_1("%s image begin", get_exec_time());
 669
 670         if (imd->il) return FALSE;
 671
 672         imd->completed = FALSE;
 673         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 674
 675         if (image_cache_get(imd))
 676                 {
 677                 DEBUG_1("from cache: %s", imd->image_fd->path);
 678                 return TRUE;
 679                 }
 680
 681         if (image_read_ahead_check(imd))
 682                 {
 683                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 684                 return TRUE;
 685                 }
 686
 687         if (!imd->delay_flip && image_get_pixbuf(imd))
 688                 {
 689                 PixbufRenderer *pr;
 690
 691                 pr = PIXBUF_RENDERER(imd->pr);
 692                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 693                 pr->pixbuf = NULL;
 694                 }
 695
 696         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 697
 698         imd->il = image_loader_new(fd);
 699
 700         g_signal_connect (G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 701         g_signal_connect (G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 702         g_signal_connect (G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 703         image_loader_set_buffer_size(imd->il, IMAGE_LOAD_BUFFER_COUNT);
 704
 705         if (!image_loader_start(imd->il))
 706                 {
 707                 DEBUG_1("image start error");
 708
 709                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 710
 711                 image_loader_free(imd->il);
 712                 imd->il = NULL;
 713
 714                 image_complete_util(imd, FALSE);
 715
 716                 return FALSE;
 717                 }
 718
 719         image_state_set(imd, IMAGE_STATE_LOADING);
 720
 721 #ifdef IMAGE_THROTTLE_LARGER_IMAGES
 722         image_load_buffer_throttle(imd->il);
 723 #endif
 724
 725         if (!imd->delay_flip && !image_get_pixbuf(imd)) image_load_pixbuf_ready(imd);
 726
 727         return TRUE;
 728 }
 729
 730 static void image_reset(ImageWindow *imd)
 731 {
 732         /* stops anything currently being done */
 733
 734         DEBUG_1("%s image reset", get_exec_time());
 735
 736         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 737
 738         image_loader_free(imd->il);
 739         imd->il = NULL;
 740
 741         color_man_free((ColorMan *)imd->cm);
 742         imd->cm = NULL;
 743
 744         imd->delay_alter_type = ALTER_NONE;
 745
 746         image_state_set(imd, IMAGE_STATE_NONE);
 747 }
 748
 749 /*
 750  *-------------------------------------------------------------------
 751  * image changer
 752  *-------------------------------------------------------------------
 753  */
 754
 755 static void image_change_complete(ImageWindow *imd, gdouble zoom, gint new)
 756 {
 757         image_reset(imd);
 758
 759         if (imd->image_fd && isfile(imd->image_fd->path))
 760                 {
 761                 PixbufRenderer *pr;
 762
 763                 pr = PIXBUF_RENDERER(imd->pr);
 764                 pr->zoom = zoom;        /* store the zoom, needed by the loader */
 765
 766                 if (image_load_begin(imd, imd->image_fd))
 767                         {
 768                         imd->unknown = FALSE;
 769                         }
 770                 else
 771                         {
 772                         GdkPixbuf *pixbuf;
 773
 774                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 775                         image_change_pixbuf(imd, pixbuf, zoom);
 776                         g_object_unref(pixbuf);
 777
 778                         imd->unknown = TRUE;
 779                         }
 780                 }
 781         else
 782                 {
 783                 if (imd->image_fd)
 784                         {
 785                         GdkPixbuf *pixbuf;
 786
 787                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 788                         image_change_pixbuf(imd, pixbuf, zoom);
 789                         g_object_unref(pixbuf);
 790                         }
 791                 else
 792                         {
 793                         image_change_pixbuf(imd, NULL, zoom);
 794                         }
 795                 imd->unknown = TRUE;
 796                 }
 797
 798         image_update_util(imd);
 799 }
 800
 801 static void image_change_real(ImageWindow *imd, FileData *fd,
 802                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 803 {
 804
 805         imd->collection = cd;
 806         imd->collection_info = info;
 807
 808         if (imd->auto_refresh && imd->image_fd)
 809                 file_data_unregister_real_time_monitor(imd->image_fd);
 810
 811         file_data_unref(imd->image_fd);
 812         imd->image_fd = file_data_ref(fd);
 813
 814
 815         image_change_complete(imd, zoom, TRUE);
 816
 817         image_update_title(imd);
 818         image_state_set(imd, IMAGE_STATE_IMAGE);
 819
 820         if (imd->auto_refresh && imd->image_fd)
 821                 file_data_register_real_time_monitor(imd->image_fd);
 822 }
 823
 824 /*
 825  *-------------------------------------------------------------------
 826  * focus stuff
 827  *-------------------------------------------------------------------
 828  */
 829
 830 static void image_focus_paint(ImageWindow *imd, gint has_focus, GdkRectangle *area)
 831 {
 832         GtkWidget *widget;
 833
 834         widget = imd->widget;
 835         if (!widget->window) return;
 836
 837         if (has_focus)
 838                 {
 839                 gtk_paint_focus(widget->style, widget->window, GTK_STATE_ACTIVE,
 840                                 area, widget, "image_window",
 841                                 widget->allocation.x, widget->allocation.y,
 842                                 widget->allocation.width - 1, widget->allocation.height - 1);
 843                 }
 844         else
 845                 {
 846                 gtk_paint_shadow(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
 847                                  area, widget, "image_window",
 848                                  widget->allocation.x, widget->allocation.y,
 849                                  widget->allocation.width - 1, widget->allocation.height - 1);
 850                 }
 851 }
 852
 853 static gint image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 854 {
 855         ImageWindow *imd = data;
 856
 857         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 858         return TRUE;
 859 }
 860
 861 static gint image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 862 {
 863         ImageWindow *imd = data;
 864
 865         GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 866         image_focus_paint(imd, TRUE, NULL);
 867
 868         return TRUE;
 869 }
 870
 871 static gint image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 872 {
 873         ImageWindow *imd = data;
 874
 875         GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 876         image_focus_paint(imd, FALSE, NULL);
 877
 878         return TRUE;
 879 }
 880
 881 static gint image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 882 {
 883         ImageWindow *imd = data;
 884
 885         if (imd->func_scroll &&
 886             event && event->type == GDK_SCROLL)
 887                 {
 888                 imd->func_scroll(imd, event, imd->data_scroll);
 889                 return TRUE;
 890                 }
 891
 892         return FALSE;
 893 }
 894
 895 /*
 896  *-------------------------------------------------------------------
 897  * public interface
 898  *-------------------------------------------------------------------
 899  */
 900
 901 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 902                          const gchar *title, const gchar *title_right, gint show_zoom)
 903 {
 904         imd->top_window = window;
 905         g_free(imd->title);
 906         imd->title = g_strdup(title);
 907         g_free(imd->title_right);
 908         imd->title_right = g_strdup(title_right);
 909         imd->title_show_zoom = show_zoom;
 910
 911         if (!options->image.fit_window_to_image) window = NULL;
 912
 913         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 914
 915         image_update_title(imd);
 916 }
 917
 918 void image_set_update_func(ImageWindow *imd,
 919                            void (*func)(ImageWindow *imd, gpointer data),
 920                            gpointer data)
 921 {
 922         imd->func_update = func;
 923         imd->data_update = data;
 924 }
 925
 926 void image_set_complete_func(ImageWindow *imd,
 927                              void (*func)(ImageWindow *imd, gint preload, gpointer data),
 928                              gpointer data)
 929 {
 930         imd->func_complete = func;
 931         imd->data_complete = data;
 932 }
 933
 934 void image_set_state_func(ImageWindow *imd,
 935                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 936                         gpointer data)
 937 {
 938         imd->func_state = func;
 939         imd->data_state = data;
 940 }
 941
 942
 943 void image_set_button_func(ImageWindow *imd,
 944                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
 945                            gpointer data)
 946 {
 947         imd->func_button = func;
 948         imd->data_button = data;
 949 }
 950
 951 void image_set_drag_func(ImageWindow *imd,
 952                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
 953                            gpointer data)
 954 {
 955         imd->func_drag = func;
 956         imd->data_drag = data;
 957 }
 958
 959 void image_set_scroll_func(ImageWindow *imd,
 960                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
 961                            gpointer data)
 962 {
 963         imd->func_scroll = func;
 964         imd->data_scroll = data;
 965 }
 966
 967 void image_set_scroll_notify_func(ImageWindow *imd,
 968                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
 969                                   gpointer data)
 970 {
 971         imd->func_scroll_notify = func;
 972         imd->data_scroll_notify = data;
 973 }
 974
 975 /* path, name */
 976
 977 const gchar *image_get_path(ImageWindow *imd)
 978 {
 979         if (imd->image_fd == NULL) return NULL;
 980         return imd->image_fd->path;
 981 }
 982
 983 const gchar *image_get_name(ImageWindow *imd)
 984 {
 985         if (imd->image_fd == NULL) return NULL;
 986         return imd->image_fd->name;
 987 }
 988
 989 FileData *image_get_fd(ImageWindow *imd)
 990 {
 991         return imd->image_fd;
 992 }
 993
 994 /* merely changes path string, does not change the image! */
 995 void image_set_fd(ImageWindow *imd, FileData *fd)
 996 {
 997         if (imd->auto_refresh && imd->image_fd)
 998                 file_data_unregister_real_time_monitor(imd->image_fd);
 999
1000         file_data_unref(imd->image_fd);
1001         imd->image_fd = file_data_ref(fd);
1002
1003         image_update_title(imd);
1004         image_state_set(imd, IMAGE_STATE_IMAGE);
1005
1006         if (imd->auto_refresh && imd->image_fd)
1007                 file_data_register_real_time_monitor(imd->image_fd);
1008 }
1009
1010 /* load a new image */
1011
1012 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1013 {
1014         if (imd->image_fd == fd) return;
1015
1016         image_change_real(imd, fd, NULL, NULL, zoom);
1017 }
1018
1019 gint image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1020 {
1021         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1022 }
1023
1024 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1025 {
1026         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1027 }
1028
1029 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom)
1030 {
1031
1032         ExifData *exif = NULL;
1033         gint read_exif_for_color_profile = (imd->color_profile_enable && imd->color_profile_use_image);
1034         gint read_exif_for_orientation = FALSE;
1035
1036         if (imd->image_fd && imd->image_fd->user_orientation)
1037                 imd->orientation = imd->image_fd->user_orientation;
1038         else if (options->image.exif_rotate_enable)
1039                 read_exif_for_orientation = TRUE;
1040
1041         if (read_exif_for_color_profile || read_exif_for_orientation)
1042                 {
1043                 gint orientation;
1044
1045                 exif = exif_read_fd(imd->image_fd);
1046
1047                 if (exif && read_exif_for_orientation)
1048                         {
1049                         if (exif_get_integer(exif, "Exif.Image.Orientation", &orientation))
1050                                 imd->orientation = orientation;
1051                         else
1052                                 imd->orientation = 1;
1053                         imd->image_fd->exif_orientation = imd->orientation;
1054                         }
1055                 }
1056
1057         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1058         if (imd->cm)
1059                 {
1060                 color_man_free(imd->cm);
1061                 imd->cm = NULL;
1062                 }
1063
1064         pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1065         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1066
1067         if (imd->color_profile_enable)
1068                 {
1069                 if (!image_post_process_color(imd, 0, exif, FALSE))
1070                         {
1071                         /* fixme: note error to user */
1072 //                      image_state_set(imd, IMAGE_STATE_COLOR_ADJ);
1073                         }
1074                 }
1075
1076         if (read_exif_for_color_profile || read_exif_for_orientation)
1077                 exif_free_fd(imd->image_fd, exif);
1078
1079         if (imd->cm || imd->desaturate)
1080                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1081
1082         image_state_set(imd, IMAGE_STATE_IMAGE);
1083 }
1084
1085 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1086 {
1087         if (!cd || !info || !g_list_find(cd->list, info)) return;
1088
1089         image_change_real(imd, info->fd, cd, info, zoom);
1090 }
1091
1092 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1093 {
1094         if (collection_to_number(imd->collection) >= 0)
1095                 {
1096                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1097                         {
1098                         if (info) *info = imd->collection_info;
1099                         }
1100                 else
1101                         {
1102                         if (info) *info = NULL;
1103                         }
1104                 return imd->collection;
1105                 }
1106
1107         if (info) *info = NULL;
1108         return NULL;
1109 }
1110
1111 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1112 {
1113         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1114                 g_signal_connect (G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1115
1116         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1117                 g_signal_connect (G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1118 }
1119
1120 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1121 {
1122         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1123                 g_signal_connect (G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1124
1125         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1126                 g_signal_connect (G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1127
1128         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1129                 g_signal_connect (G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1130 }
1131
1132 /* this is more like a move function
1133  * it moves most data from source to imd
1134  */
1135 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1136 {
1137         if (imd == source) return;
1138
1139         imd->unknown = source->unknown;
1140
1141         imd->collection = source->collection;
1142         imd->collection_info = source->collection_info;
1143
1144         image_loader_free(imd->il);
1145         imd->il = NULL;
1146
1147         image_set_fd(imd, image_get_fd(source));
1148
1149
1150         if (source->il)
1151                 {
1152                 imd->il = source->il;
1153                 source->il = NULL;
1154
1155                 image_loader_sync_data(imd->il, source, imd);
1156
1157                 imd->delay_alter_type = source->delay_alter_type;
1158                 source->delay_alter_type = ALTER_NONE;
1159                 }
1160
1161         imd->color_profile_enable = source->color_profile_enable;
1162         imd->color_profile_input = source->color_profile_input;
1163         imd->color_profile_screen = source->color_profile_screen;
1164         imd->color_profile_use_image = source->color_profile_use_image;
1165         color_man_free((ColorMan *)imd->cm);
1166         imd->cm = NULL;
1167         if (source->cm)
1168                 {
1169                 ColorMan *cm;
1170
1171                 imd->cm = source->cm;
1172                 source->cm = NULL;
1173
1174                 cm = (ColorMan *)imd->cm;
1175                 cm->imd = imd;
1176                 cm->func_done_data = imd;
1177                 }
1178
1179         image_loader_free(imd->read_ahead_il);
1180         imd->read_ahead_il = source->read_ahead_il;
1181         source->read_ahead_il = NULL;
1182         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1183
1184         file_data_unref(imd->read_ahead_fd);
1185         imd->read_ahead_fd = source->read_ahead_fd;
1186         source->read_ahead_fd = NULL;
1187
1188         imd->completed = source->completed;
1189         imd->state = source->state;
1190         source->state = IMAGE_STATE_NONE;
1191
1192         imd->orientation = source->orientation;
1193         imd->desaturate = source->desaturate;
1194
1195         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1196
1197         if (imd->cm || imd->desaturate)
1198                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1199         else
1200                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1201
1202 }
1203
1204 /* manipulation */
1205
1206 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1207 {
1208         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1209 }
1210
1211 void image_reload(ImageWindow *imd)
1212 {
1213         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1214
1215         image_change_complete(imd, image_zoom_get(imd), FALSE);
1216 }
1217
1218 void image_scroll(ImageWindow *imd, gint x, gint y)
1219 {
1220         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1221 }
1222
1223 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1224                            gdouble x_align, gdouble y_align)
1225 {
1226         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1227 }
1228
1229 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1230 {
1231         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1232 }
1233
1234 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1235 {
1236         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1237 }
1238
1239 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1240 {
1241         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1242 }
1243
1244 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1245 {
1246         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1247 }
1248
1249 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1250 {
1251         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1252 }
1253
1254 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1255 {
1256         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1257 }
1258
1259 void image_zoom_set_fill_geometry(ImageWindow *imd, gint vertical)
1260 {
1261         PixbufRenderer *pr;
1262         gdouble zoom;
1263         gint width, height;
1264
1265         pr = (PixbufRenderer *)imd->pr;
1266
1267         if (!pixbuf_renderer_get_pixbuf(pr) ||
1268             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1269
1270         if (vertical)
1271                 {
1272                 zoom = (gdouble)pr->window_height / height;
1273                 }
1274         else
1275                 {
1276                 zoom = (gdouble)pr->window_width / width;
1277                 }
1278
1279         if (zoom < 1.0)
1280                 {
1281                 zoom = 0.0 - 1.0 / zoom;
1282                 }
1283
1284         pixbuf_renderer_zoom_set(pr, zoom);
1285 }
1286
1287 gdouble image_zoom_get(ImageWindow *imd)
1288 {
1289         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1290 }
1291
1292 gdouble image_zoom_get_real(ImageWindow *imd)
1293 {
1294         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1295 }
1296
1297 gchar *image_zoom_get_as_text(ImageWindow *imd)
1298 {
1299         gdouble zoom;
1300         gdouble scale;
1301         gdouble l = 1.0;
1302         gdouble r = 1.0;
1303         gint pl = 0;
1304         gint pr = 0;
1305         gchar *approx = " ";
1306
1307         zoom = image_zoom_get(imd);
1308         scale = image_zoom_get_real(imd);
1309
1310         if (zoom > 0.0)
1311                 {
1312                 l = zoom;
1313                 }
1314         else if (zoom < 0.0)
1315                 {
1316                 r = 0.0 - zoom;
1317                 }
1318         else if (zoom == 0.0 && scale != 0.0)
1319                 {
1320                 if (scale >= 1.0)
1321                         {
1322                         l = scale;
1323                         }
1324                 else
1325                         {
1326                         r = 1.0 / scale;
1327                         }
1328                 approx = "~";
1329                 }
1330
1331         if (rint(l) != l) pl = 1;
1332         if (rint(r) != r) pr = 1;
1333
1334         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1335 }
1336
1337 gdouble image_zoom_get_default(ImageWindow *imd)
1338 {
1339         gdouble zoom = 1.0;
1340
1341         switch (options->image.zoom_mode)
1342         {
1343         case ZOOM_RESET_ORIGINAL:
1344                 break;
1345         case ZOOM_RESET_FIT_WINDOW:
1346                 zoom = 0.0;
1347                 break;
1348         case ZOOM_RESET_NONE:
1349                 if (imd) zoom = image_zoom_get(imd);
1350                 break;
1351         }
1352
1353         return zoom;
1354 }
1355
1356 /* read ahead */
1357
1358 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1359 {
1360         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1361
1362         if (fd)
1363                 {
1364                 if (!file_cache_get(image_get_cache(), fd))
1365                         {
1366                         image_read_ahead_set(imd, fd);
1367                         }
1368                 }
1369         else
1370                 {
1371                 image_read_ahead_cancel(imd);
1372                 }
1373 }
1374
1375 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1376 {
1377         ImageWindow *imd = data;
1378
1379         if (!imd || !image_get_pixbuf(imd) ||
1380             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1381             !imd->image_fd || /* nothing to reload */
1382             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1383             ) return;
1384
1385         if (type == NOTIFY_TYPE_REREAD && fd == imd->image_fd)
1386                 {
1387                 image_reload(imd);
1388                 }
1389 }
1390
1391 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1392 {
1393         if (!enable && imd->auto_refresh && imd->image_fd)
1394                 file_data_unregister_real_time_monitor(imd->image_fd);
1395
1396         if (enable && !imd->auto_refresh && imd->image_fd)
1397                 file_data_register_real_time_monitor(imd->image_fd);
1398
1399         imd->auto_refresh = enable;
1400 }
1401
1402 void image_top_window_set_sync(ImageWindow *imd, gint allow_sync)
1403 {
1404         imd->top_window_sync = allow_sync;
1405
1406         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1407 }
1408
1409 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1410 {
1411         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1412 }
1413
1414 void image_color_profile_set(ImageWindow *imd,
1415                              gint input_type, gint screen_type,
1416                              gint use_image)
1417 {
1418         if (!imd) return;
1419
1420         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS ||
1421             screen_type < 0 || screen_type > 1)
1422                 {
1423                 return;
1424                 }
1425
1426         imd->color_profile_input = input_type;
1427         imd->color_profile_screen = screen_type;
1428         imd->color_profile_use_image = use_image;
1429 }
1430
1431 gint image_color_profile_get(ImageWindow *imd,
1432                              gint *input_type, gint *screen_type,
1433                              gint *use_image)
1434 {
1435         if (!imd) return FALSE;
1436
1437         if (input_type) *input_type = imd->color_profile_input;
1438         if (screen_type) *screen_type = imd->color_profile_screen;
1439         if (use_image) *use_image = imd->color_profile_use_image;
1440
1441         return TRUE;
1442 }
1443
1444 void image_color_profile_set_use(ImageWindow *imd, gint enable)
1445 {
1446         if (!imd) return;
1447
1448         if (imd->color_profile_enable == enable) return;
1449
1450         imd->color_profile_enable = enable;
1451 }
1452
1453 gint image_color_profile_get_use(ImageWindow *imd)
1454 {
1455         if (!imd) return FALSE;
1456
1457         return imd->color_profile_enable;
1458 }
1459
1460 gint image_color_profile_get_from_image(ImageWindow *imd)
1461 {
1462         if (!imd) return FALSE;
1463
1464         return imd->color_profile_from_image;
1465 }
1466
1467 void image_set_delay_flip(ImageWindow *imd, gint delay)
1468 {
1469         if (!imd ||
1470             imd->delay_flip == delay) return;
1471
1472         imd->delay_flip = delay;
1473
1474         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1475
1476         if (!imd->delay_flip && imd->il)
1477                 {
1478                 PixbufRenderer *pr;
1479
1480                 pr = PIXBUF_RENDERER(imd->pr);
1481                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1482                 pr->pixbuf = NULL;
1483
1484                 image_load_pixbuf_ready(imd);
1485                 }
1486 }
1487
1488 void image_to_root_window(ImageWindow *imd, gint scaled)
1489 {
1490         GdkScreen *screen;
1491         GdkWindow *rootwindow;
1492         GdkPixmap *pixmap;
1493         GdkPixbuf *pixbuf;
1494         GdkPixbuf *pb;
1495         gint width, height;
1496
1497         if (!imd) return;
1498
1499         pixbuf = image_get_pixbuf(imd);
1500         if (!pixbuf) return;
1501
1502         screen = gtk_widget_get_screen(imd->widget);
1503         rootwindow = gdk_screen_get_root_window(screen);
1504         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1505
1506         if (scaled)
1507                 {
1508                 width = gdk_screen_width();
1509                 height = gdk_screen_height();
1510                 }
1511         else
1512                 {
1513                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1514                 }
1515
1516         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1517
1518         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1519         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1520         gdk_window_clear(rootwindow);
1521         g_object_unref(pb);
1522         g_object_unref(pixmap);
1523
1524         gdk_flush();
1525 }
1526
1527 void image_select(ImageWindow *imd, gboolean select)
1528 {
1529         if (imd->has_frame)
1530                 {
1531                 if (select)
1532                         {
1533                         gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1534                         gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1535                         }
1536                 else
1537                         gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1538                 }
1539 }
1540
1541
1542
1543 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1544 {
1545         if (imd->has_frame)
1546                 {
1547                 if (selectable)
1548                         {
1549                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1550                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 4);
1551                         }
1552                 else
1553                         {
1554                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1555                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 0);
1556                         }
1557                 }
1558 }
1559
1560 /*
1561  *-------------------------------------------------------------------
1562  * prefs sync
1563  *-------------------------------------------------------------------
1564  */
1565
1566 static void image_options_set(ImageWindow *imd)
1567 {
1568         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1569                                         "zoom_2pass", options->image.zoom_2pass,
1570                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1571                                         "dither_quality", options->image.dither_quality,
1572                                         "scroll_reset", options->image.scroll_reset_method,
1573                                         "cache_display", options->image.tile_cache_max,
1574                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1575                                         "window_limit", options->image.limit_window_size,
1576                                         "window_limit_value", options->image.max_window_size,
1577                                         "autofit_limit", options->image.limit_autofit_size,
1578                                         "autofit_limit_value", options->image.max_autofit_size,
1579
1580                                         NULL);
1581
1582         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1583 }
1584
1585 void image_options_sync(void)
1586 {
1587         GList *work;
1588
1589         work = image_list;
1590         while (work)
1591                 {
1592                 ImageWindow *imd;
1593
1594                 imd = work->data;
1595                 work = work->next;
1596
1597                 image_options_set(imd);
1598                 }
1599 }
1600
1601 /*
1602  *-------------------------------------------------------------------
1603  * init / destroy
1604  *-------------------------------------------------------------------
1605  */
1606
1607 static void image_free(ImageWindow *imd)
1608 {
1609         image_list = g_list_remove(image_list, imd);
1610
1611         if (imd->auto_refresh && imd->image_fd)
1612                 file_data_unregister_real_time_monitor(imd->image_fd);
1613
1614         file_data_unregister_notify_func(image_notify_cb, imd);
1615
1616         image_reset(imd);
1617
1618         image_read_ahead_cancel(imd);
1619
1620         file_data_unref(imd->image_fd);
1621         g_free(imd->title);
1622         g_free(imd->title_right);
1623         g_free(imd);
1624 }
1625
1626 static void image_destroy_cb(GtkObject *widget, gpointer data)
1627 {
1628         ImageWindow *imd = data;
1629         image_free(imd);
1630 }
1631
1632 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1633 {
1634         gtk_paint_flat_box(widget->style,
1635                            widget->window,
1636                            widget->state,
1637                            (GTK_FRAME(widget))->shadow_type,
1638                            NULL,
1639                            widget,
1640                            NULL,
1641                            widget->allocation.x + 3, widget->allocation.y + 3,
1642                            widget->allocation.width - 6, widget->allocation.height - 6);
1643
1644
1645         return FALSE;
1646 }
1647
1648
1649 void image_set_frame(ImageWindow *imd, gboolean frame)
1650 {
1651         frame = !!frame;
1652
1653         if (frame == imd->has_frame) return;
1654
1655         gtk_widget_hide(imd->pr);
1656
1657         if (frame)
1658                 {
1659                 imd->frame = gtk_frame_new(NULL);
1660                 gtk_widget_ref(imd->pr);
1661                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1662                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1663                 gtk_widget_unref(imd->pr);
1664                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1665                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1666
1667                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1668                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1669                                  G_CALLBACK(image_focus_in_cb), imd);
1670                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1671                                  G_CALLBACK(image_focus_out_cb), imd);
1672
1673                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1674                                        G_CALLBACK(image_focus_expose), imd);
1675
1676
1677                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1678                 gtk_widget_show(imd->frame);
1679                 }
1680         else
1681                 {
1682                 gtk_widget_ref(imd->pr);
1683                 if (imd->frame)
1684                         {
1685                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1686                         gtk_widget_destroy(imd->frame);
1687                         imd->frame = NULL;
1688                         }
1689                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1690                 gtk_widget_unref(imd->pr);
1691                 }
1692
1693         gtk_widget_show(imd->pr);
1694
1695         imd->has_frame = frame;
1696 }
1697
1698 ImageWindow *image_new(gint frame)
1699 {
1700         ImageWindow *imd;
1701
1702         imd = g_new0(ImageWindow, 1);
1703
1704         imd->top_window = NULL;
1705         imd->title = NULL;
1706         imd->title_right = NULL;
1707         imd->title_show_zoom = FALSE;
1708
1709         imd->unknown = TRUE;
1710
1711         imd->has_frame = -1; /* not initialized; for image_set_frame */
1712         imd->top_window_sync = FALSE;
1713
1714         imd->delay_alter_type = ALTER_NONE;
1715
1716         imd->read_ahead_il = NULL;
1717         imd->read_ahead_fd = NULL;
1718
1719         imd->completed = FALSE;
1720         imd->state = IMAGE_STATE_NONE;
1721
1722         imd->color_profile_enable = FALSE;
1723         imd->color_profile_input = 0;
1724         imd->color_profile_screen = 0;
1725         imd->color_profile_use_image = FALSE;
1726         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1727
1728         imd->auto_refresh = FALSE;
1729
1730         imd->delay_flip = FALSE;
1731
1732         imd->func_update = NULL;
1733         imd->func_complete = NULL;
1734         imd->func_tile_request = NULL;
1735         imd->func_tile_dispose = NULL;
1736
1737         imd->func_button = NULL;
1738         imd->func_scroll = NULL;
1739
1740         imd->orientation = 1;
1741
1742         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1743
1744         image_options_set(imd);
1745
1746
1747         imd->widget = gtk_vbox_new(0, 0);
1748
1749         image_set_frame(imd, frame);
1750
1751         image_set_selectable(imd, 0);
1752
1753         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1754                          G_CALLBACK(image_click_cb), imd);
1755         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1756                          G_CALLBACK(image_scroll_notify_cb), imd);
1757
1758         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1759                          G_CALLBACK(image_scroll_cb), imd);
1760
1761         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1762                          G_CALLBACK(image_destroy_cb), imd);
1763
1764         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1765                          G_CALLBACK(image_zoom_cb), imd);
1766         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1767                          G_CALLBACK(image_render_complete_cb), imd);
1768         g_signal_connect(G_OBJECT(imd->pr), "drag",
1769                          G_CALLBACK(image_drag_cb), imd);
1770
1771         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1772
1773         image_list = g_list_append(image_list, imd);
1774
1775         return imd;
1776 }