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 #define IMAGE_AUTO_REFRESH_TIME 3000
  49
  50
  51 static GList *image_list = NULL;
  52
  53
  54 static void image_update_title(ImageWindow *imd);
  55 static void image_read_ahead_start(ImageWindow *imd);
  56 static void image_cache_set(ImageWindow *imd, FileData *fd);
  57
  58 /*
  59  *-------------------------------------------------------------------
  60  * 'signals'
  61  *-------------------------------------------------------------------
  62  */
  63
  64 static void image_click_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  65 {
  66         ImageWindow *imd = data;
  67
  68         if (imd->func_button)
  69                 {
  70                 imd->func_button(imd, event->button, event->time,
  71                                  event->x, event->y, event->state, imd->data_button);
  72                 }
  73 }
  74
  75 static void image_drag_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  76 {
  77         ImageWindow *imd = data;
  78         gint width, height;
  79
  80         pixbuf_renderer_get_scaled_size(pr, &width, &height);
  81
  82         if (imd->func_drag)
  83                 {
  84                 imd->func_drag(imd, event->button, event->time,
  85                                  event->x, event->y, event->state,
  86                                  (gfloat)(pr->drag_last_x - event->x) / width, (gfloat)(pr->drag_last_y - event->y) / height,
  87                                  imd->data_button);
  88                 }
  89 }
  90
  91 static void image_scroll_notify_cb(PixbufRenderer *pr, gpointer data)
  92 {
  93         ImageWindow *imd = data;
  94
  95         if (imd->func_scroll_notify && pr->scale)
  96                 {
  97                 imd->func_scroll_notify(imd,
  98                                         (gint)((gdouble)pr->x_scroll / pr->scale),
  99                                         (gint)((gdouble)pr->y_scroll / pr->scale),
 100                                         (gint)((gdouble)pr->image_width - pr->vis_width / pr->scale),
 101                                         (gint)((gdouble)pr->image_height - pr->vis_height / pr->scale),
 102                                         imd->data_scroll_notify);
 103                 }
 104 }
 105
 106 static void image_update_util(ImageWindow *imd)
 107 {
 108         if (imd->func_update) imd->func_update(imd, imd->data_update);
 109 }
 110
 111 static void image_zoom_cb(PixbufRenderer *pr, gdouble zoom, gpointer data)
 112 {
 113         ImageWindow *imd = data;
 114
 115         if (imd->title_show_zoom) image_update_title(imd);
 116         if (imd->overlay_show_zoom) image_osd_update(imd);
 117
 118         image_update_util(imd);
 119 }
 120
 121 static void image_complete_util(ImageWindow *imd, gint preload)
 122 {
 123         if (imd->il && image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il)) return;
 124
 125         DEBUG_1("%s image load completed \"%s\" (%s)", get_exec_time(),
 126                           (preload) ? (imd->read_ahead_fd ? imd->read_ahead_fd->path : "null") :
 127                                       (imd->image_fd ? imd->image_fd->path : "null"),
 128                           (preload) ? "preload" : "current");
 129
 130         if (!preload) imd->completed = TRUE;
 131         if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
 132 }
 133
 134 static void image_render_complete_cb(PixbufRenderer *pr, gpointer data)
 135 {
 136         ImageWindow *imd = data;
 137
 138         image_complete_util(imd, FALSE);
 139 }
 140
 141 static void image_state_set(ImageWindow *imd, ImageState state)
 142 {
 143         if (state == IMAGE_STATE_NONE)
 144                 {
 145                 imd->state = state;
 146                 }
 147         else
 148                 {
 149                 imd->state |= state;
 150                 }
 151         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 152 }
 153
 154 static void image_state_unset(ImageWindow *imd, ImageState state)
 155 {
 156         imd->state &= ~state;
 157         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 158 }
 159
 160 /*
 161  *-------------------------------------------------------------------
 162  * misc
 163  *-------------------------------------------------------------------
 164  */
 165
 166 static void image_update_title(ImageWindow *imd)
 167 {
 168         gchar *title = NULL;
 169         gchar *zoom = NULL;
 170         gchar *collection = NULL;
 171
 172         if (!imd->top_window) return;
 173
 174         if (imd->collection && collection_to_number(imd->collection) >= 0)
 175                 {
 176                 const gchar *name;
 177                 name = imd->collection->name;
 178                 if (!name) name = _("Untitled");
 179                 collection = g_strdup_printf(" (Collection %s)", name);
 180                 }
 181
 182         if (imd->title_show_zoom)
 183                 {
 184                 gchar *buf = image_zoom_get_as_text(imd);
 185                 zoom = g_strconcat(" [", buf, "]", NULL);
 186                 g_free(buf);
 187                 }
 188
 189         title = g_strdup_printf("%s%s%s%s%s%s",
 190                 imd->title ? imd->title : "",
 191                 imd->image_fd ? imd->image_fd->name : "",
 192                 zoom ? zoom : "",
 193                 collection ? collection : "",
 194                 imd->image_fd ? " - " : "",
 195                 imd->title_right ? imd->title_right : "");
 196
 197         gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
 198
 199         g_free(title);
 200         g_free(zoom);
 201         g_free(collection);
 202 }
 203
 204 /*
 205  *-------------------------------------------------------------------
 206  * rotation, flip, etc.
 207  *-------------------------------------------------------------------
 208  */
 209
 210 static gint image_post_process_color(ImageWindow *imd, gint start_row, ExifData *exif, gint run_in_bg)
 211 {
 212         ColorMan *cm;
 213         ColorManProfileType input_type;
 214         ColorManProfileType screen_type;
 215         const gchar *input_file;
 216         const gchar *screen_file;
 217         unsigned char *profile = NULL;
 218         guint profile_len;
 219
 220         if (imd->cm) return FALSE;
 221
 222         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
 223             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
 224                 {
 225                 gint n;
 226
 227                 n = imd->color_profile_input - COLOR_PROFILE_FILE;
 228                 if (!options->color_profile.input_file[n]) return FALSE;
 229
 230                 input_type = COLOR_PROFILE_FILE;
 231                 input_file = options->color_profile.input_file[n];
 232                 }
 233         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
 234                  imd->color_profile_input <  COLOR_PROFILE_FILE)
 235                 {
 236                 input_type = imd->color_profile_input;
 237                 input_file = NULL;
 238                 }
 239         else
 240                 {
 241                 return FALSE;
 242                 }
 243
 244         if (imd->color_profile_screen == 1 &&
 245             options->color_profile.screen_file)
 246                 {
 247                 screen_type = COLOR_PROFILE_FILE;
 248                 screen_file = options->color_profile.screen_file;
 249                 }
 250         else if (imd->color_profile_screen == 0)
 251                 {
 252                 screen_type = COLOR_PROFILE_SRGB;
 253                 screen_file = NULL;
 254                 }
 255         else
 256                 {
 257                 return FALSE;
 258                 }
 259         imd->color_profile_from_image = COLOR_PROFILE_NONE;
 260
 261         if (imd->color_profile_use_image && exif)
 262                 {
 263                 profile = exif_get_color_profile(exif, &profile_len);
 264                 if (!profile)
 265                         {
 266                         gint cs;
 267                         gchar *interop_index;
 268
 269                         /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
 270                         if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
 271                         interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
 272
 273                         if (cs == 1)
 274                                 {
 275                                 input_type = COLOR_PROFILE_SRGB;
 276                                 input_file = NULL;
 277                                 imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 278
 279                                 DEBUG_1("Found EXIF ColorSpace of sRGB");
 280                                 }
 281                         if (cs == 2 || (interop_index && !strcmp(interop_index, "R03")))
 282                                 {
 283                                 input_type = COLOR_PROFILE_ADOBERGB;
 284                                 input_file = NULL;
 285                                 imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 286
 287                                 DEBUG_1("Found EXIF ColorSpace of AdobeRGB");
 288                                 }
 289
 290                         g_free(interop_index);
 291                         }
 292                 }
 293
 294         if (profile)
 295                 {
 296                 DEBUG_1("Found embedded color profile");
 297                 imd->color_profile_from_image = COLOR_PROFILE_MEM;
 298
 299                 cm = color_man_new_embedded(run_in_bg ? imd : NULL, NULL,
 300                                             profile, profile_len,
 301                                             screen_type, screen_file);
 302                 g_free(profile);
 303                 }
 304         else
 305                 {
 306                 cm = color_man_new(run_in_bg ? imd : NULL, NULL,
 307                                    input_type, input_file,
 308                                    screen_type, screen_file);
 309                 }
 310
 311         if (cm)
 312                 {
 313                 if (start_row > 0)
 314                         {
 315                         cm->row = start_row;
 316                         cm->incremental_sync = TRUE;
 317                         }
 318
 319                 imd->cm = (gpointer)cm;
 320 #if 0
 321                 if (run_in_bg) color_man_start_bg(imd->cm, image_post_process_color_cb, imd);
 322 #endif
 323                 return TRUE;
 324                 }
 325
 326         return FALSE;
 327 }
 328
 329
 330 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 331 {
 332         ImageWindow *imd = (ImageWindow *)data;
 333         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
 334         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 335
 336 }
 337
 338 void image_alter(ImageWindow *imd, AlterType type)
 339 {
 340         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 341         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 342         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 343         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 344         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 345
 346
 347         if (!imd || !imd->pr) return;
 348
 349         if (imd->orientation < 1 || imd->orientation > 8) imd->orientation = 1;
 350
 351         switch (type)
 352                 {
 353                 case ALTER_ROTATE_90:
 354                         imd->orientation = rotate_90[imd->orientation];
 355                         break;
 356                 case ALTER_ROTATE_90_CC:
 357                         imd->orientation = rotate_90_cc[imd->orientation];
 358                         break;
 359                 case ALTER_ROTATE_180:
 360                         imd->orientation = rotate_180[imd->orientation];
 361                         break;
 362                 case ALTER_MIRROR:
 363                         imd->orientation = mirror[imd->orientation];
 364                         break;
 365                 case ALTER_FLIP:
 366                         imd->orientation = flip[imd->orientation];
 367                         break;
 368                 case ALTER_DESATURATE:
 369                         imd->desaturate = !imd->desaturate;
 370                         break;
 371                 case ALTER_NONE:
 372                         imd->orientation = imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1;
 373                         imd->desaturate = FALSE;
 374                         break;
 375                 default:
 376                         return;
 377                         break;
 378                 }
 379
 380         if (type != ALTER_NONE && type != ALTER_DESATURATE)
 381                 {
 382                 if (imd->image_fd->user_orientation == 0) file_data_ref(imd->image_fd);
 383                 imd->image_fd->user_orientation = imd->orientation;
 384                 }
 385         else
 386                 {
 387                 if (imd->image_fd->user_orientation != 0) file_data_unref(imd->image_fd);
 388                 imd->image_fd->user_orientation = 0;
 389                 }
 390
 391         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 392         if (imd->cm || imd->desaturate)
 393                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 394         else
 395                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 396 }
 397
 398
 399 /*
 400  *-------------------------------------------------------------------
 401  * read ahead (prebuffer)
 402  *-------------------------------------------------------------------
 403  */
 404
 405 static void image_read_ahead_cancel(ImageWindow *imd)
 406 {
 407         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 408
 409         image_loader_free(imd->read_ahead_il);
 410         imd->read_ahead_il = NULL;
 411
 412         file_data_unref(imd->read_ahead_fd);
 413         imd->read_ahead_fd = NULL;
 414 }
 415
 416 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 417 {
 418         ImageWindow *imd = data;
 419
 420         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 421
 422         if (!imd->read_ahead_fd->pixbuf)
 423                 {
 424                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 425                 if (imd->read_ahead_fd->pixbuf)
 426                         {
 427                         g_object_ref(imd->read_ahead_fd->pixbuf);
 428                         image_cache_set(imd, imd->read_ahead_fd);
 429                         }
 430                 else
 431                         {
 432                         imd->read_ahead_fd->pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 433                         }
 434                 }
 435         image_loader_free(imd->read_ahead_il);
 436         imd->read_ahead_il = NULL;
 437
 438         image_complete_util(imd, TRUE);
 439 }
 440
 441 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 442 {
 443         /* we even treat errors as success, maybe at least some of the file was ok */
 444         image_read_ahead_done_cb(il, data);
 445 }
 446
 447 static void image_read_ahead_start(ImageWindow *imd)
 448 {
 449         /* already started ? */
 450         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 451
 452         /* still loading ?, do later */
 453         if (imd->il /*|| imd->cm*/) return;
 454
 455         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 456
 457         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 458
 459         image_loader_set_error_func(imd->read_ahead_il, image_read_ahead_error_cb, imd);
 460         if (!image_loader_start(imd->read_ahead_il, image_read_ahead_done_cb, imd))
 461                 {
 462                 image_read_ahead_cancel(imd);
 463                 image_complete_util(imd, TRUE);
 464                 }
 465 }
 466
 467 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 468 {
 469         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 470
 471         image_read_ahead_cancel(imd);
 472
 473         imd->read_ahead_fd = file_data_ref(fd);
 474
 475         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 476
 477         image_read_ahead_start(imd);
 478 }
 479
 480 /*
 481  *-------------------------------------------------------------------
 482  * post buffering
 483  *-------------------------------------------------------------------
 484  */
 485
 486 static void image_cache_release_cb(FileData *fd)
 487 {
 488         g_object_unref(fd->pixbuf);
 489         fd->pixbuf = NULL;
 490 }
 491
 492 static FileCacheData *image_get_cache()
 493 {
 494         static FileCacheData *cache = NULL;
 495         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 496         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 497         return cache;
 498 }
 499
 500 static void image_cache_set(ImageWindow *imd, FileData *fd)
 501 {
 502         g_assert(fd->pixbuf);
 503
 504         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 505 }
 506
 507 static gint image_cache_get(ImageWindow *imd)
 508 {
 509         gint success;
 510
 511         success = file_cache_get(image_get_cache(), imd->image_fd);
 512         if (success)
 513                 {
 514                 g_assert(imd->image_fd->pixbuf);
 515                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd));
 516                 }
 517
 518         file_cache_dump(image_get_cache());
 519         return success;
 520 }
 521
 522 /*
 523  *-------------------------------------------------------------------
 524  * loading
 525  *-------------------------------------------------------------------
 526  */
 527
 528 static void image_load_pixbuf_ready(ImageWindow *imd)
 529 {
 530         if (image_get_pixbuf(imd) || !imd->il) return;
 531
 532         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd));
 533 }
 534
 535 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 536 {
 537         ImageWindow *imd = data;
 538         PixbufRenderer *pr;
 539
 540         pr = (PixbufRenderer *)imd->pr;
 541
 542         if (imd->delay_flip &&
 543             pr->pixbuf != image_loader_get_pixbuf(il))
 544                 {
 545                 return;
 546                 }
 547
 548         if (!pr->pixbuf) image_load_pixbuf_ready(imd);
 549
 550         pixbuf_renderer_area_changed(pr, x, y, w, h);
 551 }
 552
 553 static void image_load_done_cb(ImageLoader *il, gpointer data)
 554 {
 555         ImageWindow *imd = data;
 556
 557         DEBUG_1("%s image done", get_exec_time());
 558
 559         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 560         image_state_unset(imd, IMAGE_STATE_LOADING);
 561
 562         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 563                 {
 564                 imd->image_fd->pixbuf = gdk_pixbuf_ref(image_loader_get_pixbuf(imd->il));
 565                 image_cache_set(imd, imd->image_fd);
 566                 }
 567
 568         if (imd->delay_flip &&
 569             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 570                 {
 571                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 572                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd));
 573                 }
 574
 575         image_loader_free(imd->il);
 576         imd->il = NULL;
 577
 578 //      image_post_process(imd, TRUE);
 579
 580         image_read_ahead_start(imd);
 581 }
 582
 583 static void image_load_error_cb(ImageLoader *il, gpointer data)
 584 {
 585         DEBUG_1("%s image error", get_exec_time());
 586
 587         /* even on error handle it like it was done,
 588          * since we have a pixbuf with _something_ */
 589
 590         image_load_done_cb(il, data);
 591 }
 592
 593 #ifdef IMAGE_THROTTLE_LARGER_IMAGES
 594 static void image_load_buffer_throttle(ImageLoader *il)
 595 {
 596         if (!il || il->bytes_total < IMAGE_THROTTLE_THRESHOLD) return;
 597
 598         /* Larger image files usually have larger chunks of data per pixel...
 599          * So increase the buffer read size so that the rendering chunks called
 600          * are also larger.
 601          */
 602
 603         image_loader_set_buffer_size(il, IMAGE_LOAD_BUFFER_COUNT * IMAGE_THROTTLE_FACTOR);
 604 }
 605 #endif
 606
 607 /* this read ahead is located here merely for the callbacks, above */
 608
 609 static gint image_read_ahead_check(ImageWindow *imd)
 610 {
 611         if (!imd->read_ahead_fd) return FALSE;
 612         if (imd->il) return FALSE;
 613
 614         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 615                 {
 616                 image_read_ahead_cancel(imd);
 617                 return FALSE;
 618                 }
 619
 620         if (imd->read_ahead_il)
 621                 {
 622                 imd->il = imd->read_ahead_il;
 623                 imd->read_ahead_il = NULL;
 624
 625                 /* override the old signals */
 626                 image_loader_set_area_ready_func(imd->il, image_load_area_cb, imd);
 627                 image_loader_set_error_func(imd->il, image_load_error_cb, imd);
 628                 image_loader_set_buffer_size(imd->il, IMAGE_LOAD_BUFFER_COUNT);
 629
 630 #ifdef IMAGE_THROTTLE_LARGER_IMAGES
 631                 image_load_buffer_throttle(imd->il);
 632 #endif
 633
 634                 /* do this one directly (probably should add a set func) */
 635                 imd->il->func_done = image_load_done_cb;
 636
 637                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 638                 image_state_set(imd, IMAGE_STATE_LOADING);
 639
 640                 if (!imd->delay_flip)
 641                         {
 642                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd));
 643                         }
 644
 645                 file_data_unref(imd->read_ahead_fd);
 646                 imd->read_ahead_fd = NULL;
 647                 return TRUE;
 648                 }
 649         else if (imd->read_ahead_fd->pixbuf)
 650                 {
 651                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd));
 652
 653                 file_data_unref(imd->read_ahead_fd);
 654                 imd->read_ahead_fd = NULL;
 655
 656 //              image_post_process(imd, FALSE);
 657                 return TRUE;
 658                 }
 659
 660         image_read_ahead_cancel(imd);
 661         return FALSE;
 662 }
 663
 664 static gint image_load_begin(ImageWindow *imd, FileData *fd)
 665 {
 666         DEBUG_1("%s image begin", get_exec_time());
 667
 668         if (imd->il) return FALSE;
 669
 670         imd->completed = FALSE;
 671         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 672
 673         if (image_cache_get(imd))
 674                 {
 675                 DEBUG_1("from cache: %s", imd->image_fd->path);
 676                 return TRUE;
 677                 }
 678
 679         if (image_read_ahead_check(imd))
 680                 {
 681                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 682                 return TRUE;
 683                 }
 684
 685         if (!imd->delay_flip && image_get_pixbuf(imd))
 686                 {
 687                 PixbufRenderer *pr;
 688
 689                 pr = PIXBUF_RENDERER(imd->pr);
 690                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 691                 pr->pixbuf = NULL;
 692                 }
 693
 694         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 695
 696         imd->il = image_loader_new(fd);
 697
 698         image_loader_set_area_ready_func(imd->il, image_load_area_cb, imd);
 699         image_loader_set_error_func(imd->il, image_load_error_cb, imd);
 700         image_loader_set_buffer_size(imd->il, IMAGE_LOAD_BUFFER_COUNT);
 701
 702         if (!image_loader_start(imd->il, image_load_done_cb, imd))
 703                 {
 704                 DEBUG_1("image start error");
 705
 706                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 707
 708                 image_loader_free(imd->il);
 709                 imd->il = NULL;
 710
 711                 image_complete_util(imd, FALSE);
 712
 713                 return FALSE;
 714                 }
 715
 716         image_state_set(imd, IMAGE_STATE_LOADING);
 717
 718 #ifdef IMAGE_THROTTLE_LARGER_IMAGES
 719         image_load_buffer_throttle(imd->il);
 720 #endif
 721
 722         if (!imd->delay_flip && !image_get_pixbuf(imd)) image_load_pixbuf_ready(imd);
 723
 724         return TRUE;
 725 }
 726
 727 static void image_reset(ImageWindow *imd)
 728 {
 729         /* stops anything currently being done */
 730
 731         DEBUG_1("%s image reset", get_exec_time());
 732
 733         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 734
 735         image_loader_free(imd->il);
 736         imd->il = NULL;
 737
 738         color_man_free((ColorMan *)imd->cm);
 739         imd->cm = NULL;
 740
 741         imd->delay_alter_type = ALTER_NONE;
 742
 743         image_state_set(imd, IMAGE_STATE_NONE);
 744 }
 745
 746 /*
 747  *-------------------------------------------------------------------
 748  * image changer
 749  *-------------------------------------------------------------------
 750  */
 751
 752 static void image_change_complete(ImageWindow *imd, gdouble zoom, gint new)
 753 {
 754         image_reset(imd);
 755
 756         if (imd->image_fd && isfile(imd->image_fd->path))
 757                 {
 758                 PixbufRenderer *pr;
 759
 760                 pr = PIXBUF_RENDERER(imd->pr);
 761                 pr->zoom = zoom;        /* store the zoom, needed by the loader */
 762
 763                 if (image_load_begin(imd, imd->image_fd))
 764                         {
 765                         imd->unknown = FALSE;
 766                         }
 767                 else
 768                         {
 769                         GdkPixbuf *pixbuf;
 770
 771                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 772                         image_change_pixbuf(imd, pixbuf, zoom);
 773                         g_object_unref(pixbuf);
 774
 775                         imd->unknown = TRUE;
 776                         }
 777                 imd->size = filesize(imd->image_fd->path);
 778                 imd->mtime = filetime(imd->image_fd->path);
 779                 }
 780         else
 781                 {
 782                 if (imd->image_fd)
 783                         {
 784                         GdkPixbuf *pixbuf;
 785
 786                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 787                         image_change_pixbuf(imd, pixbuf, zoom);
 788                         g_object_unref(pixbuf);
 789                         imd->mtime = filetime(imd->image_fd->path);
 790                         }
 791                 else
 792                         {
 793                         image_change_pixbuf(imd, NULL, zoom);
 794                         imd->mtime = 0;
 795                         }
 796                 imd->unknown = TRUE;
 797                 imd->size = 0;
 798                 }
 799
 800         image_update_util(imd);
 801 }
 802
 803 static void image_change_real(ImageWindow *imd, FileData *fd,
 804                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 805 {
 806
 807         imd->collection = cd;
 808         imd->collection_info = info;
 809
 810         file_data_unref(imd->image_fd);
 811         imd->image_fd = file_data_ref(fd);
 812
 813         image_change_complete(imd, zoom, TRUE);
 814
 815         image_update_title(imd);
 816         image_state_set(imd, IMAGE_STATE_IMAGE);
 817 }
 818
 819 /*
 820  *-------------------------------------------------------------------
 821  * focus stuff
 822  *-------------------------------------------------------------------
 823  */
 824
 825 static void image_focus_paint(ImageWindow *imd, gint has_focus, GdkRectangle *area)
 826 {
 827         GtkWidget *widget;
 828
 829         widget = imd->widget;
 830         if (!widget->window) return;
 831
 832         if (has_focus)
 833                 {
 834                 gtk_paint_focus(widget->style, widget->window, GTK_STATE_ACTIVE,
 835                                 area, widget, "image_window",
 836                                 widget->allocation.x, widget->allocation.y,
 837                                 widget->allocation.width - 1, widget->allocation.height - 1);
 838                 }
 839         else
 840                 {
 841                 gtk_paint_shadow(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
 842                                  area, widget, "image_window",
 843                                  widget->allocation.x, widget->allocation.y,
 844                                  widget->allocation.width - 1, widget->allocation.height - 1);
 845                 }
 846 }
 847
 848 static gint image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 849 {
 850         ImageWindow *imd = data;
 851
 852         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 853         return TRUE;
 854 }
 855
 856 static gint image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 857 {
 858         ImageWindow *imd = data;
 859
 860         GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 861         image_focus_paint(imd, TRUE, NULL);
 862
 863         return TRUE;
 864 }
 865
 866 static gint image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 867 {
 868         ImageWindow *imd = data;
 869
 870         GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 871         image_focus_paint(imd, FALSE, NULL);
 872
 873         return TRUE;
 874 }
 875
 876 static gint image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 877 {
 878         ImageWindow *imd = data;
 879
 880         if (imd->func_scroll &&
 881             event && event->type == GDK_SCROLL)
 882                 {
 883                 imd->func_scroll(imd, event->direction, event->time,
 884                                  event->x, event->y, event->state, imd->data_scroll);
 885                 return TRUE;
 886                 }
 887
 888         return FALSE;
 889 }
 890
 891 /*
 892  *-------------------------------------------------------------------
 893  * public interface
 894  *-------------------------------------------------------------------
 895  */
 896
 897 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 898                          const gchar *title, const gchar *title_right, gint show_zoom)
 899 {
 900         imd->top_window = window;
 901         g_free(imd->title);
 902         imd->title = g_strdup(title);
 903         g_free(imd->title_right);
 904         imd->title_right = g_strdup(title_right);
 905         imd->title_show_zoom = show_zoom;
 906
 907         if (!options->image.fit_window_to_image) window = NULL;
 908
 909         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 910
 911         image_update_title(imd);
 912 }
 913
 914 void image_set_update_func(ImageWindow *imd,
 915                            void (*func)(ImageWindow *imd, gpointer data),
 916                            gpointer data)
 917 {
 918         imd->func_update = func;
 919         imd->data_update = data;
 920 }
 921
 922 void image_set_complete_func(ImageWindow *imd,
 923                              void (*func)(ImageWindow *imd, gint preload, gpointer data),
 924                              gpointer data)
 925 {
 926         imd->func_complete = func;
 927         imd->data_complete = data;
 928 }
 929
 930 void image_set_state_func(ImageWindow *imd,
 931                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 932                         gpointer data)
 933 {
 934         imd->func_state = func;
 935         imd->data_state = data;
 936 }
 937
 938
 939 void image_set_button_func(ImageWindow *imd,
 940                            void (*func)(ImageWindow *, gint button, guint32 time, gdouble x, gdouble y, guint state, gpointer),
 941                            gpointer data)
 942 {
 943         imd->func_button = func;
 944         imd->data_button = data;
 945 }
 946
 947 void image_set_drag_func(ImageWindow *imd,
 948                            void (*func)(ImageWindow *, gint button, guint32 time, gdouble x, gdouble y, guint state, gdouble dx, gdouble dy, gpointer),
 949                            gpointer data)
 950 {
 951         imd->func_drag = func;
 952         imd->data_drag = data;
 953 }
 954
 955 void image_set_scroll_func(ImageWindow *imd,
 956                            void (*func)(ImageWindow *, GdkScrollDirection direction, guint32 time, gdouble x, gdouble y, guint state, gpointer),
 957                            gpointer data)
 958 {
 959         imd->func_scroll = func;
 960         imd->data_scroll = data;
 961 }
 962
 963 void image_set_scroll_notify_func(ImageWindow *imd,
 964                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
 965                                   gpointer data)
 966 {
 967         imd->func_scroll_notify = func;
 968         imd->data_scroll_notify = data;
 969 }
 970
 971 /* path, name */
 972
 973 const gchar *image_get_path(ImageWindow *imd)
 974 {
 975         if (imd->image_fd == NULL) return NULL;
 976         return imd->image_fd->path;
 977 }
 978
 979 const gchar *image_get_name(ImageWindow *imd)
 980 {
 981         if (imd->image_fd == NULL) return NULL;
 982         return imd->image_fd->name;
 983 }
 984
 985 FileData *image_get_fd(ImageWindow *imd)
 986 {
 987         return imd->image_fd;
 988 }
 989
 990 /* merely changes path string, does not change the image! */
 991 void image_set_fd(ImageWindow *imd, FileData *fd)
 992 {
 993         file_data_unref(imd->image_fd);
 994         imd->image_fd = file_data_ref(fd);
 995
 996         image_update_title(imd);
 997         image_state_set(imd, IMAGE_STATE_IMAGE);
 998 }
 999
1000 /* load a new image */
1001
1002 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1003 {
1004         if (imd->image_fd == fd) return;
1005
1006         image_change_real(imd, fd, NULL, NULL, zoom);
1007 }
1008
1009 gint image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1010 {
1011         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1012 }
1013
1014 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1015 {
1016         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1017 }
1018
1019 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom)
1020 {
1021
1022         ExifData *exif = NULL;
1023         gint read_exif_for_color_profile = (imd->color_profile_enable && imd->color_profile_use_image);
1024         gint read_exif_for_orientation = FALSE;
1025
1026         if (imd->image_fd && imd->image_fd->user_orientation)
1027                 imd->orientation = imd->image_fd->user_orientation;
1028         else if (options->image.exif_rotate_enable)
1029                 read_exif_for_orientation = TRUE;
1030
1031         if (read_exif_for_color_profile || read_exif_for_orientation)
1032                 {
1033                 gint orientation;
1034
1035                 exif = exif_read_fd(imd->image_fd);
1036
1037                 if (exif && read_exif_for_orientation)
1038                         {
1039                         if (exif_get_integer(exif, "Exif.Image.Orientation", &orientation))
1040                                 imd->orientation = orientation;
1041                         else
1042                                 imd->orientation = 1;
1043                         imd->image_fd->exif_orientation = imd->orientation;
1044                         }
1045                 }
1046
1047         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1048         if (imd->cm)
1049                 {
1050                 color_man_free(imd->cm);
1051                 imd->cm = NULL;
1052                 }
1053
1054         pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1055         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1056
1057         if (imd->color_profile_enable)
1058                 {
1059                 if (!image_post_process_color(imd, 0, exif, FALSE))
1060                         {
1061                         /* fixme: note error to user */
1062 //                      image_state_set(imd, IMAGE_STATE_COLOR_ADJ);
1063                         }
1064                 }
1065
1066         exif_free_fd(imd->image_fd, exif);
1067
1068         if (imd->cm || imd->desaturate)
1069                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1070
1071         image_state_set(imd, IMAGE_STATE_IMAGE);
1072 }
1073
1074 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1075 {
1076         if (!cd || !info || !g_list_find(cd->list, info)) return;
1077
1078         image_change_real(imd, info->fd, cd, info, zoom);
1079 }
1080
1081 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1082 {
1083         if (collection_to_number(imd->collection) >= 0)
1084                 {
1085                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1086                         {
1087                         if (info) *info = imd->collection_info;
1088                         }
1089                 else
1090                         {
1091                         if (info) *info = NULL;
1092                         }
1093                 return imd->collection;
1094                 }
1095
1096         if (info) *info = NULL;
1097         return NULL;
1098 }
1099
1100 static void image_loader_sync_data(ImageLoader *il, gpointer data)
1101 {
1102         /* change data for the callbacks directly */
1103
1104         il->data_area_ready = data;
1105         il->data_error = data;
1106         il->data_done = data;
1107         il->data_percent = data;
1108 }
1109
1110 /* this is more like a move function
1111  * it moves most data from source to imd
1112  */
1113 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1114 {
1115         if (imd == source) return;
1116
1117         imd->unknown = source->unknown;
1118
1119         imd->collection = source->collection;
1120         imd->collection_info = source->collection_info;
1121         imd->size = source->size;
1122         imd->mtime = source->mtime;
1123
1124         image_loader_free(imd->il);
1125         imd->il = NULL;
1126
1127         image_set_fd(imd, image_get_fd(source));
1128
1129
1130         if (source->il)
1131                 {
1132 //              imd->il = source->il;
1133 //              source->il = NULL;
1134
1135                 image_loader_sync_data(imd->il, imd);
1136
1137                 imd->delay_alter_type = source->delay_alter_type;
1138                 source->delay_alter_type = ALTER_NONE;
1139                 }
1140
1141         imd->color_profile_enable = source->color_profile_enable;
1142         imd->color_profile_input = source->color_profile_input;
1143         imd->color_profile_screen = source->color_profile_screen;
1144         imd->color_profile_use_image = source->color_profile_use_image;
1145         color_man_free((ColorMan *)imd->cm);
1146         imd->cm = NULL;
1147         if (source->cm)
1148                 {
1149                 ColorMan *cm;
1150
1151                 imd->cm = source->cm;
1152                 source->cm = NULL;
1153
1154                 cm = (ColorMan *)imd->cm;
1155                 cm->imd = imd;
1156                 cm->func_done_data = imd;
1157                 }
1158
1159         image_loader_free(imd->read_ahead_il);
1160         imd->read_ahead_il = source->read_ahead_il;
1161         source->read_ahead_il = NULL;
1162         if (imd->read_ahead_il) image_loader_sync_data(imd->read_ahead_il, imd);
1163
1164         file_data_unref(imd->read_ahead_fd);
1165         imd->read_ahead_fd = source->read_ahead_fd;
1166         source->read_ahead_fd = NULL;
1167
1168         imd->completed = source->completed;
1169         imd->state = source->state;
1170         source->state = IMAGE_STATE_NONE;
1171
1172         imd->orientation = source->orientation;
1173         imd->desaturate = source->desaturate;
1174
1175         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1176
1177         if (imd->cm || imd->desaturate)
1178                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1179         else
1180                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1181
1182 }
1183
1184 /* manipulation */
1185
1186 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1187 {
1188         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1189 }
1190
1191 void image_reload(ImageWindow *imd)
1192 {
1193         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1194
1195         image_change_complete(imd, image_zoom_get(imd), FALSE);
1196 }
1197
1198 void image_scroll(ImageWindow *imd, gint x, gint y)
1199 {
1200         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1201 }
1202
1203 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1204                            gdouble x_align, gdouble y_align)
1205 {
1206         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1207 }
1208
1209 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1210 {
1211         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1212 }
1213
1214 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1215 {
1216         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1217 }
1218
1219 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1220 {
1221         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1222 }
1223
1224 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1225 {
1226         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1227 }
1228
1229 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1230 {
1231         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1232 }
1233
1234 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1235 {
1236         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1237 }
1238
1239 void image_zoom_set_fill_geometry(ImageWindow *imd, gint vertical)
1240 {
1241         PixbufRenderer *pr;
1242         gdouble zoom;
1243         gint width, height;
1244
1245         pr = (PixbufRenderer *)imd->pr;
1246
1247         if (!pixbuf_renderer_get_pixbuf(pr) ||
1248             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1249
1250         if (vertical)
1251                 {
1252                 zoom = (gdouble)pr->window_height / height;
1253                 }
1254         else
1255                 {
1256                 zoom = (gdouble)pr->window_width / width;
1257                 }
1258
1259         if (zoom < 1.0)
1260                 {
1261                 zoom = 0.0 - 1.0 / zoom;
1262                 }
1263
1264         pixbuf_renderer_zoom_set(pr, zoom);
1265 }
1266
1267 gdouble image_zoom_get(ImageWindow *imd)
1268 {
1269         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1270 }
1271
1272 gdouble image_zoom_get_real(ImageWindow *imd)
1273 {
1274         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1275 }
1276
1277 gchar *image_zoom_get_as_text(ImageWindow *imd)
1278 {
1279         gdouble zoom;
1280         gdouble scale;
1281         gdouble l = 1.0;
1282         gdouble r = 1.0;
1283         gint pl = 0;
1284         gint pr = 0;
1285         gchar *approx = " ";
1286
1287         zoom = image_zoom_get(imd);
1288         scale = image_zoom_get_real(imd);
1289
1290         if (zoom > 0.0)
1291                 {
1292                 l = zoom;
1293                 }
1294         else if (zoom < 0.0)
1295                 {
1296                 r = 0.0 - zoom;
1297                 }
1298         else if (zoom == 0.0 && scale != 0.0)
1299                 {
1300                 if (scale >= 1.0)
1301                         {
1302                         l = scale;
1303                         }
1304                 else
1305                         {
1306                         r = 1.0 / scale;
1307                         }
1308                 approx = "~";
1309                 }
1310
1311         if (rint(l) != l) pl = 1;
1312         if (rint(r) != r) pr = 1;
1313
1314         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1315 }
1316
1317 gdouble image_zoom_get_default(ImageWindow *imd, gint mode)
1318 {
1319         gdouble zoom;
1320
1321         if (mode == ZOOM_RESET_ORIGINAL)
1322                 {
1323                 zoom = 1.0;
1324                 }
1325         else if (mode == ZOOM_RESET_FIT_WINDOW)
1326                 {
1327                 zoom = 0.0;
1328                 }
1329         else
1330                 {
1331                 if (imd)
1332                         {
1333                         zoom = image_zoom_get(imd);
1334                         }
1335                 else
1336                         {
1337                         zoom = 1.0;
1338                         }
1339                 }
1340
1341         return zoom;
1342 }
1343
1344 /* read ahead */
1345
1346 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1347 {
1348         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1349
1350         if (fd)
1351                 {
1352                 if (!file_cache_get(image_get_cache(), fd))
1353                         {
1354                         image_read_ahead_set(imd, fd);
1355                         }
1356                 }
1357         else
1358                 {
1359                 image_read_ahead_cancel(imd);
1360                 }
1361 }
1362
1363 static gint image_auto_refresh_cb(gpointer data)
1364 {
1365         ImageWindow *imd = data;
1366         time_t newtime;
1367
1368         if (!imd || !image_get_pixbuf(imd) ||
1369             imd->il || !imd->image_fd ||
1370             !options->update_on_time_change) return TRUE;
1371
1372         newtime = filetime(imd->image_fd->path);
1373         if (newtime > 0 && newtime != imd->mtime)
1374                 {
1375                 imd->mtime = newtime;
1376                 image_reload(imd);
1377                 }
1378
1379         return TRUE;
1380 }
1381
1382 /* image auto refresh on time stamp change, in 1/1000's second, -1 disables */
1383
1384 void image_auto_refresh(ImageWindow *imd, gint interval)
1385 {
1386         if (!imd) return;
1387         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1388
1389         if (imd->auto_refresh_id > -1)
1390                 {
1391                 g_source_remove(imd->auto_refresh_id);
1392                 imd->auto_refresh_id = -1;
1393                 imd->auto_refresh_interval = -1;
1394                 }
1395
1396         if (interval < 0) return;
1397
1398         if (interval == 0) interval = IMAGE_AUTO_REFRESH_TIME;
1399
1400         imd->auto_refresh_id = g_timeout_add((guint32)interval, image_auto_refresh_cb, imd);
1401         imd->auto_refresh_interval = interval;
1402 }
1403
1404 void image_top_window_set_sync(ImageWindow *imd, gint allow_sync)
1405 {
1406         imd->top_window_sync = allow_sync;
1407
1408         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1409 }
1410
1411 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1412 {
1413         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1414 }
1415
1416 void image_color_profile_set(ImageWindow *imd,
1417                              gint input_type, gint screen_type,
1418                              gint use_image)
1419 {
1420         if (!imd) return;
1421
1422         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS ||
1423             screen_type < 0 || screen_type > 1)
1424                 {
1425                 return;
1426                 }
1427
1428         imd->color_profile_input = input_type;
1429         imd->color_profile_screen = screen_type;
1430         imd->color_profile_use_image = use_image;
1431 }
1432
1433 gint image_color_profile_get(ImageWindow *imd,
1434                              gint *input_type, gint *screen_type,
1435                              gint *use_image)
1436 {
1437         if (!imd) return FALSE;
1438
1439         if (input_type) *input_type = imd->color_profile_input;
1440         if (screen_type) *screen_type = imd->color_profile_screen;
1441         if (use_image) *use_image = imd->color_profile_use_image;
1442
1443         return TRUE;
1444 }
1445
1446 void image_color_profile_set_use(ImageWindow *imd, gint enable)
1447 {
1448         if (!imd) return;
1449
1450         if (imd->color_profile_enable == enable) return;
1451
1452         imd->color_profile_enable = enable;
1453 }
1454
1455 gint image_color_profile_get_use(ImageWindow *imd)
1456 {
1457         if (!imd) return FALSE;
1458
1459         return imd->color_profile_enable;
1460 }
1461
1462 gint image_color_profile_get_from_image(ImageWindow *imd)
1463 {
1464         if (!imd) return FALSE;
1465
1466         return imd->color_profile_from_image;
1467 }
1468
1469 void image_set_delay_flip(ImageWindow *imd, gint delay)
1470 {
1471         if (!imd ||
1472             imd->delay_flip == delay) return;
1473
1474         imd->delay_flip = delay;
1475
1476         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1477
1478         if (!imd->delay_flip && imd->il)
1479                 {
1480                 PixbufRenderer *pr;
1481
1482                 pr = PIXBUF_RENDERER(imd->pr);
1483                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1484                 pr->pixbuf = NULL;
1485
1486                 image_load_pixbuf_ready(imd);
1487                 }
1488 }
1489
1490 void image_to_root_window(ImageWindow *imd, gint scaled)
1491 {
1492         GdkScreen *screen;
1493         GdkWindow *rootwindow;
1494         GdkPixmap *pixmap;
1495         GdkPixbuf *pixbuf;
1496         GdkPixbuf *pb;
1497         gint width, height;
1498
1499         if (!imd) return;
1500
1501         pixbuf = image_get_pixbuf(imd);
1502         if (!pixbuf) return;
1503
1504         screen = gtk_widget_get_screen(imd->widget);
1505         rootwindow = gdk_screen_get_root_window(screen);
1506         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1507
1508         if (scaled)
1509                 {
1510                 width = gdk_screen_width();
1511                 height = gdk_screen_height();
1512                 }
1513         else
1514                 {
1515                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1516                 }
1517
1518         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1519
1520         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1521         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1522         gdk_window_clear(rootwindow);
1523         g_object_unref(pb);
1524         g_object_unref(pixmap);
1525
1526         gdk_flush();
1527 }
1528
1529 void image_select(ImageWindow *imd, gboolean select)
1530 {
1531         if (imd->has_frame)
1532                 {
1533                 if (select)
1534                         {
1535                         gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1536                         gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1537                         }
1538                 else
1539                         gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1540                 }
1541 }
1542
1543
1544
1545 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1546 {
1547         if (imd->has_frame)
1548                 {
1549                 if (selectable)
1550                         {
1551                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1552                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 4);
1553                         }
1554                 else
1555                         {
1556                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1557                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 0);
1558                         }
1559                 }
1560 }
1561
1562 /*
1563  *-------------------------------------------------------------------
1564  * prefs sync
1565  *-------------------------------------------------------------------
1566  */
1567
1568 static void image_options_set(ImageWindow *imd)
1569 {
1570         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1571                                         "zoom_2pass", options->image.zoom_2pass,
1572                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1573                                         "dither_quality", options->image.dither_quality,
1574                                         "scroll_reset", options->image.scroll_reset_method,
1575                                         "cache_display", options->image.tile_cache_max,
1576                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1577                                         "window_limit", options->image.limit_window_size,
1578                                         "window_limit_value", options->image.max_window_size,
1579                                         "autofit_limit", options->image.limit_autofit_size,
1580                                         "autofit_limit_value", options->image.max_autofit_size,
1581
1582                                         NULL);
1583
1584         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1585 }
1586
1587 void image_options_sync(void)
1588 {
1589         GList *work;
1590
1591         work = image_list;
1592         while (work)
1593                 {
1594                 ImageWindow *imd;
1595
1596                 imd = work->data;
1597                 work = work->next;
1598
1599                 image_options_set(imd);
1600                 }
1601 }
1602
1603 /*
1604  *-------------------------------------------------------------------
1605  * init / destroy
1606  *-------------------------------------------------------------------
1607  */
1608
1609 static void image_free(ImageWindow *imd)
1610 {
1611         image_list = g_list_remove(image_list, imd);
1612
1613         image_reset(imd);
1614
1615         image_read_ahead_cancel(imd);
1616         image_auto_refresh(imd, -1);
1617
1618         file_data_unref(imd->image_fd);
1619         g_free(imd->title);
1620         g_free(imd->title_right);
1621         g_free(imd);
1622 }
1623
1624 static void image_destroy_cb(GtkObject *widget, gpointer data)
1625 {
1626         ImageWindow *imd = data;
1627         image_free(imd);
1628 }
1629
1630 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1631 {
1632         gtk_paint_flat_box(widget->style,
1633                            widget->window,
1634                            widget->state,
1635                            (GTK_FRAME(widget))->shadow_type,
1636                            NULL,
1637                            widget,
1638                            NULL,
1639                            widget->allocation.x + 3, widget->allocation.y + 3,
1640                            widget->allocation.width - 6, widget->allocation.height - 6);
1641
1642
1643         return FALSE;
1644 }
1645
1646
1647 void image_set_frame(ImageWindow *imd, gboolean frame)
1648 {
1649         frame = !!frame;
1650
1651         if (frame == imd->has_frame) return;
1652
1653         gtk_widget_hide(imd->pr);
1654
1655         if (frame)
1656                 {
1657                 imd->frame = gtk_frame_new(NULL);
1658                 gtk_widget_ref(imd->pr);
1659                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1660                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1661                 gtk_widget_unref(imd->pr);
1662                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1663                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1664
1665                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1666                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1667                                  G_CALLBACK(image_focus_in_cb), imd);
1668                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1669                                  G_CALLBACK(image_focus_out_cb), imd);
1670
1671                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1672                                        G_CALLBACK(image_focus_expose), imd);
1673
1674
1675                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1676                 gtk_widget_show(imd->frame);
1677                 }
1678         else
1679                 {
1680                 gtk_widget_ref(imd->pr);
1681                 if (imd->frame)
1682                         {
1683                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1684                         gtk_widget_destroy(imd->frame);
1685                         imd->frame = NULL;
1686                         }
1687                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1688                 gtk_widget_unref(imd->pr);
1689                 }
1690
1691         gtk_widget_show(imd->pr);
1692
1693         imd->has_frame = frame;
1694 }
1695
1696 ImageWindow *image_new(gint frame)
1697 {
1698         ImageWindow *imd;
1699
1700         imd = g_new0(ImageWindow, 1);
1701
1702         imd->top_window = NULL;
1703         imd->title = NULL;
1704         imd->title_right = NULL;
1705         imd->title_show_zoom = FALSE;
1706
1707         imd->unknown = TRUE;
1708
1709         imd->has_frame = -1; /* not initialized; for image_set_frame */
1710         imd->top_window_sync = FALSE;
1711
1712         imd->delay_alter_type = ALTER_NONE;
1713
1714         imd->read_ahead_il = NULL;
1715         imd->read_ahead_fd = NULL;
1716
1717         imd->completed = FALSE;
1718         imd->state = IMAGE_STATE_NONE;
1719
1720         imd->color_profile_enable = FALSE;
1721         imd->color_profile_input = 0;
1722         imd->color_profile_screen = 0;
1723         imd->color_profile_use_image = FALSE;
1724         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1725
1726         imd->auto_refresh_id = -1;
1727         imd->auto_refresh_interval = -1;
1728
1729         imd->delay_flip = FALSE;
1730
1731         imd->func_update = NULL;
1732         imd->func_complete = NULL;
1733         imd->func_tile_request = NULL;
1734         imd->func_tile_dispose = NULL;
1735
1736         imd->func_button = NULL;
1737         imd->func_scroll = NULL;
1738
1739         imd->orientation = 1;
1740
1741         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1742
1743         image_options_set(imd);
1744
1745
1746         imd->widget = gtk_vbox_new(0, 0);
1747
1748         image_set_frame(imd, frame);
1749
1750         image_set_selectable(imd, 0);
1751
1752         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1753                          G_CALLBACK(image_click_cb), imd);
1754         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1755                          G_CALLBACK(image_scroll_notify_cb), imd);
1756
1757         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1758                          G_CALLBACK(image_scroll_cb), imd);
1759
1760         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1761                          G_CALLBACK(image_destroy_cb), imd);
1762
1763         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1764                          G_CALLBACK(image_zoom_cb), imd);
1765         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1766                          G_CALLBACK(image_render_complete_cb), imd);
1767         g_signal_connect(G_OBJECT(imd->pr), "drag",
1768                          G_CALLBACK(image_drag_cb), imd);
1769
1770         image_list = g_list_append(image_list, imd);
1771
1772         return imd;
1773 }