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