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, 120000000);
 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->direction, event->time,
 883                                  event->x, event->y, event->state, imd->data_scroll);
 884                 return TRUE;
 885                 }
 886
 887         return FALSE;
 888 }
 889
 890 /*
 891  *-------------------------------------------------------------------
 892  * public interface
 893  *-------------------------------------------------------------------
 894  */
 895
 896 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 897                          const gchar *title, const gchar *title_right, gint show_zoom)
 898 {
 899         imd->top_window = window;
 900         g_free(imd->title);
 901         imd->title = g_strdup(title);
 902         g_free(imd->title_right);
 903         imd->title_right = g_strdup(title_right);
 904         imd->title_show_zoom = show_zoom;
 905
 906         if (!options->image.fit_window_to_image) window = NULL;
 907
 908         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 909
 910         image_update_title(imd);
 911 }
 912
 913 void image_set_update_func(ImageWindow *imd,
 914                            void (*func)(ImageWindow *imd, gpointer data),
 915                            gpointer data)
 916 {
 917         imd->func_update = func;
 918         imd->data_update = data;
 919 }
 920
 921 void image_set_complete_func(ImageWindow *imd,
 922                              void (*func)(ImageWindow *imd, gint preload, gpointer data),
 923                              gpointer data)
 924 {
 925         imd->func_complete = func;
 926         imd->data_complete = data;
 927 }
 928
 929 void image_set_state_func(ImageWindow *imd,
 930                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 931                         gpointer data)
 932 {
 933         imd->func_state = func;
 934         imd->data_state = data;
 935 }
 936
 937
 938 void image_set_button_func(ImageWindow *imd,
 939                            void (*func)(ImageWindow *, gint button, guint32 time, gdouble x, gdouble y, guint state, gpointer),
 940                            gpointer data)
 941 {
 942         imd->func_button = func;
 943         imd->data_button = data;
 944 }
 945
 946 void image_set_drag_func(ImageWindow *imd,
 947                            void (*func)(ImageWindow *, gint button, guint32 time, gdouble x, gdouble y, guint state, gdouble dx, gdouble dy, gpointer),
 948                            gpointer data)
 949 {
 950         imd->func_drag = func;
 951         imd->data_drag = data;
 952 }
 953
 954 void image_set_scroll_func(ImageWindow *imd,
 955                            void (*func)(ImageWindow *, GdkScrollDirection direction, guint32 time, gdouble x, gdouble y, guint state, gpointer),
 956                            gpointer data)
 957 {
 958         imd->func_scroll = func;
 959         imd->data_scroll = data;
 960 }
 961
 962 void image_set_scroll_notify_func(ImageWindow *imd,
 963                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
 964                                   gpointer data)
 965 {
 966         imd->func_scroll_notify = func;
 967         imd->data_scroll_notify = data;
 968 }
 969
 970 /* path, name */
 971
 972 const gchar *image_get_path(ImageWindow *imd)
 973 {
 974         if (imd->image_fd == NULL) return NULL;
 975         return imd->image_fd->path;
 976 }
 977
 978 const gchar *image_get_name(ImageWindow *imd)
 979 {
 980         if (imd->image_fd == NULL) return NULL;
 981         return imd->image_fd->name;
 982 }
 983
 984 FileData *image_get_fd(ImageWindow *imd)
 985 {
 986         return imd->image_fd;
 987 }
 988
 989 /* merely changes path string, does not change the image! */
 990 void image_set_fd(ImageWindow *imd, FileData *fd)
 991 {
 992         file_data_unref(imd->image_fd);
 993         imd->image_fd = file_data_ref(fd);
 994
 995         image_update_title(imd);
 996         image_state_set(imd, IMAGE_STATE_IMAGE);
 997 }
 998
 999 /* load a new image */
1000
1001 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1002 {
1003         if (imd->image_fd == fd) return;
1004
1005         image_change_real(imd, fd, NULL, NULL, zoom);
1006 }
1007
1008 gint image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1009 {
1010         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1011 }
1012
1013 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1014 {
1015         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1016 }
1017
1018 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom)
1019 {
1020
1021         ExifData *exif = NULL;
1022         gint read_exif_for_color_profile = (imd->color_profile_enable && imd->color_profile_use_image);
1023         gint read_exif_for_orientation = FALSE;
1024
1025         if (imd->image_fd && imd->image_fd->user_orientation)
1026                 imd->orientation = imd->image_fd->user_orientation;
1027         else if (options->image.exif_rotate_enable)
1028                 read_exif_for_orientation = TRUE;
1029
1030         if (read_exif_for_color_profile || read_exif_for_orientation)
1031                 {
1032                 gint orientation;
1033
1034                 exif = exif_read_fd(imd->image_fd);
1035
1036                 if (exif && read_exif_for_orientation)
1037                         {
1038                         if (exif_get_integer(exif, "Exif.Image.Orientation", &orientation))
1039                                 imd->orientation = orientation;
1040                         else
1041                                 imd->orientation = 1;
1042                         imd->image_fd->exif_orientation = imd->orientation;
1043                         }
1044                 }
1045
1046         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1047         if (imd->cm)
1048                 {
1049                 color_man_free(imd->cm);
1050                 imd->cm = NULL;
1051                 }
1052
1053         pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1054         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1055
1056         if (imd->color_profile_enable)
1057                 {
1058                 if (!image_post_process_color(imd, 0, exif, FALSE))
1059                         {
1060                         /* fixme: note error to user */
1061 //                      image_state_set(imd, IMAGE_STATE_COLOR_ADJ);
1062                         }
1063                 }
1064
1065         exif_free_fd(imd->image_fd, exif);
1066
1067         if (imd->cm || imd->desaturate)
1068                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1069
1070         image_state_set(imd, IMAGE_STATE_IMAGE);
1071 }
1072
1073 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1074 {
1075         if (!cd || !info || !g_list_find(cd->list, info)) return;
1076
1077         image_change_real(imd, info->fd, cd, info, zoom);
1078 }
1079
1080 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1081 {
1082         if (collection_to_number(imd->collection) >= 0)
1083                 {
1084                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1085                         {
1086                         if (info) *info = imd->collection_info;
1087                         }
1088                 else
1089                         {
1090                         if (info) *info = NULL;
1091                         }
1092                 return imd->collection;
1093                 }
1094
1095         if (info) *info = NULL;
1096         return NULL;
1097 }
1098
1099 static void image_loader_sync_data(ImageLoader *il, gpointer data)
1100 {
1101         /* change data for the callbacks directly */
1102
1103         il->data_area_ready = data;
1104         il->data_error = data;
1105         il->data_done = data;
1106         il->data_percent = data;
1107 }
1108
1109 /* this is more like a move function
1110  * it moves most data from source to imd
1111  */
1112 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1113 {
1114         if (imd == source) return;
1115
1116         imd->unknown = source->unknown;
1117
1118         imd->collection = source->collection;
1119         imd->collection_info = source->collection_info;
1120         imd->size = source->size;
1121         imd->mtime = source->mtime;
1122
1123         image_loader_free(imd->il);
1124         imd->il = NULL;
1125
1126         image_set_fd(imd, image_get_fd(source));
1127
1128
1129         if (source->il)
1130                 {
1131 //              imd->il = source->il;
1132 //              source->il = NULL;
1133
1134                 image_loader_sync_data(imd->il, imd);
1135
1136                 imd->delay_alter_type = source->delay_alter_type;
1137                 source->delay_alter_type = ALTER_NONE;
1138                 }
1139
1140         imd->color_profile_enable = source->color_profile_enable;
1141         imd->color_profile_input = source->color_profile_input;
1142         imd->color_profile_screen = source->color_profile_screen;
1143         imd->color_profile_use_image = source->color_profile_use_image;
1144         color_man_free((ColorMan *)imd->cm);
1145         imd->cm = NULL;
1146         if (source->cm)
1147                 {
1148                 ColorMan *cm;
1149
1150                 imd->cm = source->cm;
1151                 source->cm = NULL;
1152
1153                 cm = (ColorMan *)imd->cm;
1154                 cm->imd = imd;
1155                 cm->func_done_data = imd;
1156                 }
1157
1158         image_loader_free(imd->read_ahead_il);
1159         imd->read_ahead_il = source->read_ahead_il;
1160         source->read_ahead_il = NULL;
1161         if (imd->read_ahead_il) image_loader_sync_data(imd->read_ahead_il, imd);
1162
1163         file_data_unref(imd->read_ahead_fd);
1164         imd->read_ahead_fd = source->read_ahead_fd;
1165         source->read_ahead_fd = NULL;
1166
1167         imd->completed = source->completed;
1168         imd->state = source->state;
1169         source->state = IMAGE_STATE_NONE;
1170
1171         imd->orientation = source->orientation;
1172         imd->desaturate = source->desaturate;
1173
1174         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1175
1176         if (imd->cm || imd->desaturate)
1177                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1178         else
1179                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1180
1181 }
1182
1183 /* manipulation */
1184
1185 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1186 {
1187         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1188 }
1189
1190 void image_reload(ImageWindow *imd)
1191 {
1192         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1193
1194         image_change_complete(imd, image_zoom_get(imd), FALSE);
1195 }
1196
1197 void image_scroll(ImageWindow *imd, gint x, gint y)
1198 {
1199         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1200 }
1201
1202 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1203                            gdouble x_align, gdouble y_align)
1204 {
1205         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1206 }
1207
1208 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1209 {
1210         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1211 }
1212
1213 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1214 {
1215         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1216 }
1217
1218 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1219 {
1220         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1221 }
1222
1223 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1224 {
1225         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1226 }
1227
1228 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1229 {
1230         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1231 }
1232
1233 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1234 {
1235         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1236 }
1237
1238 void image_zoom_set_fill_geometry(ImageWindow *imd, gint vertical)
1239 {
1240         PixbufRenderer *pr;
1241         gdouble zoom;
1242         gint width, height;
1243
1244         pr = (PixbufRenderer *)imd->pr;
1245
1246         if (!pixbuf_renderer_get_pixbuf(pr) ||
1247             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1248
1249         if (vertical)
1250                 {
1251                 zoom = (gdouble)pr->window_height / height;
1252                 }
1253         else
1254                 {
1255                 zoom = (gdouble)pr->window_width / width;
1256                 }
1257
1258         if (zoom < 1.0)
1259                 {
1260                 zoom = 0.0 - 1.0 / zoom;
1261                 }
1262
1263         pixbuf_renderer_zoom_set(pr, zoom);
1264 }
1265
1266 gdouble image_zoom_get(ImageWindow *imd)
1267 {
1268         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1269 }
1270
1271 gdouble image_zoom_get_real(ImageWindow *imd)
1272 {
1273         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1274 }
1275
1276 gchar *image_zoom_get_as_text(ImageWindow *imd)
1277 {
1278         gdouble zoom;
1279         gdouble scale;
1280         gdouble l = 1.0;
1281         gdouble r = 1.0;
1282         gint pl = 0;
1283         gint pr = 0;
1284         gchar *approx = " ";
1285
1286         zoom = image_zoom_get(imd);
1287         scale = image_zoom_get_real(imd);
1288
1289         if (zoom > 0.0)
1290                 {
1291                 l = zoom;
1292                 }
1293         else if (zoom < 0.0)
1294                 {
1295                 r = 0.0 - zoom;
1296                 }
1297         else if (zoom == 0.0 && scale != 0.0)
1298                 {
1299                 if (scale >= 1.0)
1300                         {
1301                         l = scale;
1302                         }
1303                 else
1304                         {
1305                         r = 1.0 / scale;
1306                         }
1307                 approx = "~";
1308                 }
1309
1310         if (rint(l) != l) pl = 1;
1311         if (rint(r) != r) pr = 1;
1312
1313         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1314 }
1315
1316 gdouble image_zoom_get_default(ImageWindow *imd, gint mode)
1317 {
1318         gdouble zoom;
1319
1320         if (mode == ZOOM_RESET_ORIGINAL)
1321                 {
1322                 zoom = 1.0;
1323                 }
1324         else if (mode == ZOOM_RESET_FIT_WINDOW)
1325                 {
1326                 zoom = 0.0;
1327                 }
1328         else
1329                 {
1330                 if (imd)
1331                         {
1332                         zoom = image_zoom_get(imd);
1333                         }
1334                 else
1335                         {
1336                         zoom = 1.0;
1337                         }
1338                 }
1339
1340         return zoom;
1341 }
1342
1343 /* read ahead */
1344
1345 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1346 {
1347         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1348
1349         if (fd)
1350                 {
1351                 if (!file_cache_get(image_get_cache(), fd))
1352                         {
1353                         image_read_ahead_set(imd, fd);
1354                         }
1355                 }
1356         else
1357                 {
1358                 image_read_ahead_cancel(imd);
1359                 }
1360 }
1361
1362 static gint image_auto_refresh_cb(gpointer data)
1363 {
1364         ImageWindow *imd = data;
1365         time_t newtime;
1366
1367         if (!imd || !image_get_pixbuf(imd) ||
1368             imd->il || !imd->image_fd ||
1369             !options->update_on_time_change) return TRUE;
1370
1371         newtime = filetime(imd->image_fd->path);
1372         if (newtime > 0 && newtime != imd->mtime)
1373                 {
1374                 imd->mtime = newtime;
1375                 image_reload(imd);
1376                 }
1377
1378         return TRUE;
1379 }
1380
1381 /* image auto refresh on time stamp change, in 1/1000's second, -1 disables */
1382
1383 void image_auto_refresh(ImageWindow *imd, gint interval)
1384 {
1385         if (!imd) return;
1386         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1387
1388         if (imd->auto_refresh_id > -1)
1389                 {
1390                 g_source_remove(imd->auto_refresh_id);
1391                 imd->auto_refresh_id = -1;
1392                 imd->auto_refresh_interval = -1;
1393                 }
1394
1395         if (interval < 0) return;
1396
1397         if (interval == 0) interval = IMAGE_AUTO_REFRESH_TIME;
1398
1399         imd->auto_refresh_id = g_timeout_add((guint32)interval, image_auto_refresh_cb, imd);
1400         imd->auto_refresh_interval = interval;
1401 }
1402
1403 void image_top_window_set_sync(ImageWindow *imd, gint allow_sync)
1404 {
1405         imd->top_window_sync = allow_sync;
1406
1407         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1408 }
1409
1410 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1411 {
1412         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1413 }
1414
1415 void image_color_profile_set(ImageWindow *imd,
1416                              gint input_type, gint screen_type,
1417                              gint use_image)
1418 {
1419         if (!imd) return;
1420
1421         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS ||
1422             screen_type < 0 || screen_type > 1)
1423                 {
1424                 return;
1425                 }
1426
1427         imd->color_profile_input = input_type;
1428         imd->color_profile_screen = screen_type;
1429         imd->color_profile_use_image = use_image;
1430 }
1431
1432 gint image_color_profile_get(ImageWindow *imd,
1433                              gint *input_type, gint *screen_type,
1434                              gint *use_image)
1435 {
1436         if (!imd) return FALSE;
1437
1438         if (input_type) *input_type = imd->color_profile_input;
1439         if (screen_type) *screen_type = imd->color_profile_screen;
1440         if (use_image) *use_image = imd->color_profile_use_image;
1441
1442         return TRUE;
1443 }
1444
1445 void image_color_profile_set_use(ImageWindow *imd, gint enable)
1446 {
1447         if (!imd) return;
1448
1449         if (imd->color_profile_enable == enable) return;
1450
1451         imd->color_profile_enable = enable;
1452 }
1453
1454 gint image_color_profile_get_use(ImageWindow *imd)
1455 {
1456         if (!imd) return FALSE;
1457
1458         return imd->color_profile_enable;
1459 }
1460
1461 gint image_color_profile_get_from_image(ImageWindow *imd)
1462 {
1463         if (!imd) return FALSE;
1464
1465         return imd->color_profile_from_image;
1466 }
1467
1468 void image_set_delay_flip(ImageWindow *imd, gint delay)
1469 {
1470         if (!imd ||
1471             imd->delay_flip == delay) return;
1472
1473         imd->delay_flip = delay;
1474
1475         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1476
1477         if (!imd->delay_flip && imd->il)
1478                 {
1479                 PixbufRenderer *pr;
1480
1481                 pr = PIXBUF_RENDERER(imd->pr);
1482                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1483                 pr->pixbuf = NULL;
1484
1485                 image_load_pixbuf_ready(imd);
1486                 }
1487 }
1488
1489 void image_to_root_window(ImageWindow *imd, gint scaled)
1490 {
1491         GdkScreen *screen;
1492         GdkWindow *rootwindow;
1493         GdkPixmap *pixmap;
1494         GdkPixbuf *pixbuf;
1495         GdkPixbuf *pb;
1496         gint width, height;
1497
1498         if (!imd) return;
1499
1500         pixbuf = image_get_pixbuf(imd);
1501         if (!pixbuf) return;
1502
1503         screen = gtk_widget_get_screen(imd->widget);
1504         rootwindow = gdk_screen_get_root_window(screen);
1505         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1506
1507         if (scaled)
1508                 {
1509                 width = gdk_screen_width();
1510                 height = gdk_screen_height();
1511                 }
1512         else
1513                 {
1514                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1515                 }
1516
1517         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1518
1519         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1520         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1521         gdk_window_clear(rootwindow);
1522         g_object_unref(pb);
1523         g_object_unref(pixmap);
1524
1525         gdk_flush();
1526 }
1527
1528 void image_select(ImageWindow *imd, gboolean select)
1529 {
1530         if (imd->has_frame)
1531                 {
1532                 if (select)
1533                         {
1534                         gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1535                         gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1536                         }
1537                 else
1538                         gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1539                 }
1540 }
1541
1542
1543
1544 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1545 {
1546         if (imd->has_frame)
1547                 {
1548                 if (selectable)
1549                         {
1550                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1551                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 4);
1552                         }
1553                 else
1554                         {
1555                         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1556                         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), 0);
1557                         }
1558                 }
1559 }
1560
1561 /*
1562  *-------------------------------------------------------------------
1563  * prefs sync
1564  *-------------------------------------------------------------------
1565  */
1566
1567 static void image_options_set(ImageWindow *imd)
1568 {
1569         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1570                                         "zoom_2pass", options->image.zoom_2pass,
1571                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1572                                         "dither_quality", options->image.dither_quality,
1573                                         "scroll_reset", options->image.scroll_reset_method,
1574                                         "cache_display", options->image.tile_cache_max,
1575                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1576                                         "window_limit", options->image.limit_window_size,
1577                                         "window_limit_value", options->image.max_window_size,
1578                                         "autofit_limit", options->image.limit_autofit_size,
1579                                         "autofit_limit_value", options->image.max_autofit_size,
1580
1581                                         NULL);
1582
1583         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1584 }
1585
1586 void image_options_sync(void)
1587 {
1588         GList *work;
1589
1590         work = image_list;
1591         while (work)
1592                 {
1593                 ImageWindow *imd;
1594
1595                 imd = work->data;
1596                 work = work->next;
1597
1598                 image_options_set(imd);
1599                 }
1600 }
1601
1602 /*
1603  *-------------------------------------------------------------------
1604  * init / destroy
1605  *-------------------------------------------------------------------
1606  */
1607
1608 static void image_free(ImageWindow *imd)
1609 {
1610         image_list = g_list_remove(image_list, imd);
1611
1612         image_reset(imd);
1613
1614         image_read_ahead_cancel(imd);
1615         image_auto_refresh(imd, -1);
1616
1617         file_data_unref(imd->image_fd);
1618         g_free(imd->title);
1619         g_free(imd->title_right);
1620         g_free(imd);
1621 }
1622
1623 static void image_destroy_cb(GtkObject *widget, gpointer data)
1624 {
1625         ImageWindow *imd = data;
1626         image_free(imd);
1627 }
1628
1629 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1630 {
1631         gtk_paint_flat_box(widget->style,
1632                            widget->window,
1633                            widget->state,
1634                            (GTK_FRAME(widget))->shadow_type,
1635                            NULL,
1636                            widget,
1637                            NULL,
1638                            widget->allocation.x + 3, widget->allocation.y + 3,
1639                            widget->allocation.width - 6, widget->allocation.height - 6);
1640
1641
1642         return FALSE;
1643 }
1644
1645
1646 void image_set_frame(ImageWindow *imd, gboolean frame)
1647 {
1648         frame = !!frame;
1649
1650         if (frame == imd->has_frame) return;
1651
1652         gtk_widget_hide(imd->pr);
1653
1654         if (frame)
1655                 {
1656                 imd->frame = gtk_frame_new(NULL);
1657                 gtk_widget_ref(imd->pr);
1658                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1659                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1660                 gtk_widget_unref(imd->pr);
1661                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1662                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1663
1664                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1665                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1666                                  G_CALLBACK(image_focus_in_cb), imd);
1667                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1668                                  G_CALLBACK(image_focus_out_cb), imd);
1669
1670                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1671                                        G_CALLBACK(image_focus_expose), imd);
1672
1673
1674                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1675                 gtk_widget_show(imd->frame);
1676                 }
1677         else
1678                 {
1679                 gtk_widget_ref(imd->pr);
1680                 if (imd->frame)
1681                         {
1682                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1683                         gtk_widget_destroy(imd->frame);
1684                         imd->frame = NULL;
1685                         }
1686                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1687                 gtk_widget_unref(imd->pr);
1688                 }
1689
1690         gtk_widget_show(imd->pr);
1691
1692         imd->has_frame = frame;
1693 }
1694
1695 ImageWindow *image_new(gint frame)
1696 {
1697         ImageWindow *imd;
1698
1699         imd = g_new0(ImageWindow, 1);
1700
1701         imd->top_window = NULL;
1702         imd->title = NULL;
1703         imd->title_right = NULL;
1704         imd->title_show_zoom = FALSE;
1705
1706         imd->unknown = TRUE;
1707
1708         imd->has_frame = -1; /* not initialized; for image_set_frame */
1709         imd->top_window_sync = FALSE;
1710
1711         imd->delay_alter_type = ALTER_NONE;
1712
1713         imd->read_ahead_il = NULL;
1714         imd->read_ahead_fd = NULL;
1715
1716         imd->completed = FALSE;
1717         imd->state = IMAGE_STATE_NONE;
1718
1719         imd->color_profile_enable = FALSE;
1720         imd->color_profile_input = 0;
1721         imd->color_profile_screen = 0;
1722         imd->color_profile_use_image = FALSE;
1723         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1724
1725         imd->auto_refresh_id = -1;
1726         imd->auto_refresh_interval = -1;
1727
1728         imd->delay_flip = FALSE;
1729
1730         imd->func_update = NULL;
1731         imd->func_complete = NULL;
1732         imd->func_tile_request = NULL;
1733         imd->func_tile_dispose = NULL;
1734
1735         imd->func_button = NULL;
1736         imd->func_scroll = NULL;
1737
1738         imd->orientation = 1;
1739
1740         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1741
1742         image_options_set(imd);
1743
1744
1745         imd->widget = gtk_vbox_new(0, 0);
1746
1747         image_set_frame(imd, frame);
1748
1749         image_set_selectable(imd, 0);
1750
1751         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1752                          G_CALLBACK(image_click_cb), imd);
1753         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1754                          G_CALLBACK(image_scroll_notify_cb), imd);
1755
1756         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1757                          G_CALLBACK(image_scroll_cb), imd);
1758
1759         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1760                          G_CALLBACK(image_destroy_cb), imd);
1761
1762         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1763                          G_CALLBACK(image_zoom_cb), imd);
1764         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1765                          G_CALLBACK(image_render_complete_cb), imd);
1766         g_signal_connect(G_OBJECT(imd->pr), "drag",
1767                          G_CALLBACK(image_drag_cb), imd);
1768
1769         image_list = g_list_append(image_list, imd);
1770
1771         return imd;
1772 }