src/image.c

   1 /*
   2  * Copyright (C) 2006 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "main.h"
  23 #include "image.h"
  24
  25
  26 #include "collect.h"
  27 #include "color-man.h"
  28 #include "exif.h"
  29 #include "metadata.h"
  30 #include "histogram.h"
  31 #include "image-load.h"
  32 #include "image-overlay.h"
  33 #include "layout.h"
  34 #include "layout_image.h"
  35 #include "pixbuf-renderer.h"
  36 #include "pixbuf_util.h"
  37 #include "ui_fileops.h"
  38
  39 #include "filedata.h"
  40 #include "filecache.h"
  41
  42 #include <math.h>
  43
  44 static GList *image_list = NULL;
  45
  46 static void image_update_title(ImageWindow *imd);
  47 static void image_read_ahead_start(ImageWindow *imd);
  48 static void image_cache_set(ImageWindow *imd, FileData *fd);
  49
  50 /*
  51  *-------------------------------------------------------------------
  52  * 'signals'
  53  *-------------------------------------------------------------------
  54  */
  55
  56 static void image_click_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  57 {
  58         ImageWindow *imd = data;
  59
  60         if (imd->func_button)
  61                 {
  62                 imd->func_button(imd, event, imd->data_button);
  63                 }
  64 }
  65
  66 static void image_drag_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  67 {
  68         ImageWindow *imd = data;
  69         gint width, height;
  70
  71         pixbuf_renderer_get_scaled_size(pr, &width, &height);
  72
  73         if (imd->func_drag)
  74                 {
  75                 imd->func_drag(imd, event,
  76                                (gfloat)(pr->drag_last_x - event->x) / width,
  77                                (gfloat)(pr->drag_last_y - event->y) / height,
  78                                imd->data_button);
  79                 }
  80 }
  81
  82 static void image_scroll_notify_cb(PixbufRenderer *pr, gpointer data)
  83 {
  84         ImageWindow *imd = data;
  85
  86         if (imd->func_scroll_notify && pr->scale)
  87                 {
  88                 imd->func_scroll_notify(imd,
  89                                         (gint)((gdouble)pr->x_scroll / pr->scale),
  90                                         (gint)((gdouble)pr->y_scroll / pr->scale),
  91                                         (gint)((gdouble)pr->image_width - pr->vis_width / pr->scale),
  92                                         (gint)((gdouble)pr->image_height - pr->vis_height / pr->scale),
  93                                         imd->data_scroll_notify);
  94                 }
  95 }
  96
  97 static void image_update_util(ImageWindow *imd)
  98 {
  99         if (imd->func_update) imd->func_update(imd, imd->data_update);
 100 }
 101
 102
 103 static void image_complete_util(ImageWindow *imd, gboolean preload)
 104 {
 105         if (imd->il && image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il)) return;
 106
 107         DEBUG_1("%s image load completed \"%s\" (%s)", get_exec_time(),
 108                           (preload) ? (imd->read_ahead_fd ? imd->read_ahead_fd->path : "null") :
 109                                       (imd->image_fd ? imd->image_fd->path : "null"),
 110                           (preload) ? "preload" : "current");
 111
 112         if (!preload) imd->completed = TRUE;
 113         if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
 114 }
 115
 116 static void image_render_complete_cb(PixbufRenderer *pr, gpointer data)
 117 {
 118         ImageWindow *imd = data;
 119
 120         image_complete_util(imd, FALSE);
 121 }
 122
 123 static void image_state_set(ImageWindow *imd, ImageState state)
 124 {
 125         if (state == IMAGE_STATE_NONE)
 126                 {
 127                 imd->state = state;
 128                 }
 129         else
 130                 {
 131                 imd->state |= state;
 132                 }
 133         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 134 }
 135
 136 static void image_state_unset(ImageWindow *imd, ImageState state)
 137 {
 138         imd->state &= ~state;
 139         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 140 }
 141
 142 static void image_zoom_cb(PixbufRenderer *pr, gdouble zoom, gpointer data)
 143 {
 144         ImageWindow *imd = data;
 145
 146         if (imd->title_show_zoom) image_update_title(imd);
 147         image_state_set(imd, IMAGE_STATE_IMAGE);
 148         image_update_util(imd);
 149 }
 150
 151 /*
 152  *-------------------------------------------------------------------
 153  * misc
 154  *-------------------------------------------------------------------
 155  */
 156
 157 static void image_update_title(ImageWindow *imd)
 158 {
 159         gchar *title = NULL;
 160         gchar *zoom = NULL;
 161         gchar *collection = NULL;
 162
 163         if (!imd->top_window) return;
 164
 165         if (imd->collection && collection_to_number(imd->collection) >= 0)
 166                 {
 167                 const gchar *name = imd->collection->name;
 168                 if (!name) name = _("Untitled");
 169                 collection = g_strdup_printf(_(" (Collection %s)"), name);
 170                 }
 171
 172         if (imd->title_show_zoom)
 173                 {
 174                 gchar *buf = image_zoom_get_as_text(imd);
 175                 zoom = g_strconcat(" [", buf, "]", NULL);
 176                 g_free(buf);
 177                 }
 178
 179         title = g_strdup_printf("%s%s%s%s%s%s",
 180                 imd->title ? imd->title : "",
 181                 imd->image_fd ? imd->image_fd->name : "",
 182                 zoom ? zoom : "",
 183                 collection ? collection : "",
 184                 imd->image_fd ? " - " : "",
 185                 imd->title_right ? imd->title_right : "");
 186
 187         gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
 188
 189         g_free(title);
 190         g_free(zoom);
 191         g_free(collection);
 192 }
 193
 194 /*
 195  *-------------------------------------------------------------------
 196  * rotation, flip, etc.
 197  *-------------------------------------------------------------------
 198  */
 199 static gboolean image_get_x11_screen_profile(ImageWindow *imd, guchar **screen_profile, gint *screen_profile_len)
 200 {
 201         GdkScreen *screen = gtk_widget_get_screen(imd->widget);;
 202         GdkAtom    type   = GDK_NONE;
 203         gint       format = 0;
 204
 205         return (gdk_property_get(gdk_screen_get_root_window(screen),
 206                                  gdk_atom_intern ("_ICC_PROFILE", FALSE),
 207                                  GDK_NONE,
 208                                  0, 64 * 1024 * 1024, FALSE,
 209                                  &type, &format, screen_profile_len, screen_profile) && *screen_profile_len > 0);
 210 }
 211
 212 static gboolean image_post_process_color(ImageWindow *imd, gint start_row, gboolean run_in_bg)
 213 {
 214         ColorMan *cm;
 215         ColorManProfileType input_type;
 216         ColorManProfileType screen_type;
 217         const gchar *input_file = NULL;
 218         const gchar *screen_file = NULL;
 219         guchar *profile = NULL;
 220         guint profile_len;
 221         guchar *screen_profile = NULL;
 222         gint screen_profile_len;
 223         ExifData *exif;
 224
 225         if (imd->cm) return FALSE;
 226
 227         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
 228             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
 229                 {
 230                 const gchar *file = options->color_profile.input_file[imd->color_profile_input - COLOR_PROFILE_FILE];
 231
 232                 if (!is_readable_file(file)) return FALSE;
 233
 234                 input_type = COLOR_PROFILE_FILE;
 235                 input_file = file;
 236                 }
 237         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
 238                  imd->color_profile_input <  COLOR_PROFILE_FILE)
 239                 {
 240                 input_type = imd->color_profile_input;
 241                 input_file = NULL;
 242                 }
 243         else
 244                 {
 245                 return FALSE;
 246                 }
 247
 248         if (options->color_profile.use_x11_screen_profile &&
 249             image_get_x11_screen_profile(imd, &screen_profile, &screen_profile_len))
 250                 {
 251                 screen_type = COLOR_PROFILE_MEM;
 252                 DEBUG_1("Using X11 screen profile, length: %d", screen_profile_len);
 253                 }
 254         else if (options->color_profile.screen_file &&
 255             is_readable_file(options->color_profile.screen_file))
 256                 {
 257                 screen_type = COLOR_PROFILE_FILE;
 258                 screen_file = options->color_profile.screen_file;
 259                 }
 260         else
 261                 {
 262                 screen_type = COLOR_PROFILE_SRGB;
 263                 screen_file = NULL;
 264                 }
 265
 266
 267         imd->color_profile_from_image = COLOR_PROFILE_NONE;
 268
 269         exif = exif_read_fd(imd->image_fd);
 270
 271         if (exif)
 272                 {
 273                 profile = exif_get_color_profile(exif, &profile_len);
 274                 if (profile)
 275                         {
 276                         if (!imd->color_profile_use_image)
 277                                 {
 278                                 g_free(profile);
 279                                 profile = NULL;
 280                                 }
 281                         DEBUG_1("Found embedded color profile");
 282                         imd->color_profile_from_image = COLOR_PROFILE_MEM;
 283                         }
 284                 else
 285                         {
 286                         gchar *interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
 287
 288                         if (interop_index)
 289                                 {
 290                                 /* Exif 2.21 specification */
 291                                 if (!strcmp(interop_index, "R98"))
 292                                         {
 293                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 294                                         DEBUG_1("Found EXIF 2.21 ColorSpace of sRGB");
 295                                         }
 296                                 else if (!strcmp(interop_index, "R03"))
 297                                         {
 298                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 299                                         DEBUG_1("Found EXIF 2.21 ColorSpace of AdobeRGB");
 300                                         }
 301                                 g_free(interop_index);
 302                                 }
 303                         else
 304                                 {
 305                                 gint cs;
 306
 307                                 /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
 308                                 if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
 309                                 if (cs == 1)
 310                                         {
 311                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 312                                         DEBUG_1("Found EXIF 2.2 ColorSpace of sRGB");
 313                                         }
 314                                 else if (cs == 2)
 315                                         {
 316                                         /* non-standard way of specifying AdobeRGB (used by some software) */
 317                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 318                                         DEBUG_1("Found EXIF 2.2 ColorSpace of AdobeRGB");
 319                                         }
 320                                 }
 321
 322                         if (imd->color_profile_use_image && imd->color_profile_from_image != COLOR_PROFILE_NONE)
 323                                {
 324                                input_type = imd->color_profile_from_image;
 325                                input_file = NULL;
 326                                }
 327                         }
 328
 329                 exif_free_fd(imd->image_fd, exif);
 330                 }
 331
 332
 333         if (profile)
 334                 {
 335                 cm = color_man_new_embedded(run_in_bg ? imd : NULL, NULL,
 336                                             profile, profile_len,
 337                                             screen_type, screen_file, screen_profile, screen_profile_len);
 338                 g_free(profile);
 339                 }
 340         else
 341                 {
 342                 cm = color_man_new(run_in_bg ? imd : NULL, NULL,
 343                                    input_type, input_file,
 344                                    screen_type, screen_file, screen_profile, screen_profile_len);
 345                 }
 346
 347         if (cm)
 348                 {
 349                 if (start_row > 0)
 350                         {
 351                         cm->row = start_row;
 352                         cm->incremental_sync = TRUE;
 353                         }
 354
 355                 imd->cm = (gpointer)cm;
 356                 }
 357
 358         image_update_util(imd);
 359
 360         if (screen_profile)
 361                 {
 362                 g_free(screen_profile);
 363                 screen_profile = NULL;
 364                 }
 365
 366         return !!cm;
 367 }
 368
 369
 370 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 371 {
 372         ImageWindow *imd = (ImageWindow *)data;
 373         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
 374         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 375
 376 }
 377
 378 void image_alter_orientation(ImageWindow *imd, AlterType type)
 379 {
 380         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 381         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 382         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 383         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 384         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 385
 386
 387         if (!imd || !imd->pr || !imd->image_fd) return;
 388
 389         if (imd->orientation < 1 || imd->orientation > 8) imd->orientation = 1;
 390
 391         switch (type)
 392                 {
 393                 case ALTER_ROTATE_90:
 394                         imd->orientation = rotate_90[imd->orientation];
 395                         break;
 396                 case ALTER_ROTATE_90_CC:
 397                         imd->orientation = rotate_90_cc[imd->orientation];
 398                         break;
 399                 case ALTER_ROTATE_180:
 400                         imd->orientation = rotate_180[imd->orientation];
 401                         break;
 402                 case ALTER_MIRROR:
 403                         imd->orientation = mirror[imd->orientation];
 404                         break;
 405                 case ALTER_FLIP:
 406                         imd->orientation = flip[imd->orientation];
 407                         break;
 408                 case ALTER_NONE:
 409                         imd->orientation = imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1;
 410                         break;
 411                 default:
 412                         return;
 413                         break;
 414                 }
 415
 416         if (imd->orientation != (imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1))
 417                 {
 418                 if (!options->metadata.write_orientation)
 419                         {
 420                         /* user_orientation does not work together with options->metadata.write_orientation,
 421                            use either one or the other.
 422                            we must however handle switching metadata.write_orientation on and off, therefore
 423                            we just disable referencing new fd's, not unreferencing the old ones
 424                         */
 425                         if (imd->image_fd->user_orientation == 0) file_data_ref(imd->image_fd);
 426                         imd->image_fd->user_orientation = imd->orientation;
 427                         }
 428                 }
 429         else
 430                 {
 431                 if (imd->image_fd->user_orientation != 0) file_data_unref(imd->image_fd);
 432                 imd->image_fd->user_orientation = 0;
 433                 }
 434
 435         if (options->metadata.write_orientation)
 436                 {
 437                 if (type == ALTER_NONE)
 438                         {
 439                         metadata_write_revert(imd->image_fd, ORIENTATION_KEY);
 440                         }
 441                 else
 442                         {
 443                         metadata_write_int(imd->image_fd, ORIENTATION_KEY, imd->orientation);
 444                         }
 445                 }
 446
 447         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 448 }
 449
 450 void image_set_desaturate(ImageWindow *imd, gboolean desaturate)
 451 {
 452         imd->desaturate = desaturate;
 453         if (imd->cm || imd->desaturate)
 454                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 455         else
 456                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 457         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 458 }
 459
 460 gboolean image_get_desaturate(ImageWindow *imd)
 461 {
 462         return imd->desaturate;
 463 }
 464
 465 /*
 466  *-------------------------------------------------------------------
 467  * read ahead (prebuffer)
 468  *-------------------------------------------------------------------
 469  */
 470
 471 static void image_read_ahead_cancel(ImageWindow *imd)
 472 {
 473         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 474
 475         image_loader_free(imd->read_ahead_il);
 476         imd->read_ahead_il = NULL;
 477
 478         file_data_unref(imd->read_ahead_fd);
 479         imd->read_ahead_fd = NULL;
 480 }
 481
 482 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 483 {
 484         ImageWindow *imd = data;
 485
 486         if (!imd->read_ahead_fd || !imd->read_ahead_il) return;
 487
 488         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 489
 490         if (!imd->read_ahead_fd->pixbuf)
 491                 {
 492                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 493                 if (imd->read_ahead_fd->pixbuf)
 494                         {
 495                         g_object_ref(imd->read_ahead_fd->pixbuf);
 496                         image_cache_set(imd, imd->read_ahead_fd);
 497                         }
 498                 }
 499         image_loader_free(imd->read_ahead_il);
 500         imd->read_ahead_il = NULL;
 501
 502         image_complete_util(imd, TRUE);
 503 }
 504
 505 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 506 {
 507         /* we even treat errors as success, maybe at least some of the file was ok */
 508         image_read_ahead_done_cb(il, data);
 509 }
 510
 511 static void image_read_ahead_start(ImageWindow *imd)
 512 {
 513         /* already started ? */
 514         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 515
 516         /* still loading ?, do later */
 517         if (imd->il /*|| imd->cm*/) return;
 518
 519         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 520
 521         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 522
 523         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 524
 525         g_signal_connect(G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 526         g_signal_connect(G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 527
 528         if (!image_loader_start(imd->read_ahead_il))
 529                 {
 530                 image_read_ahead_cancel(imd);
 531                 image_complete_util(imd, TRUE);
 532                 }
 533 }
 534
 535 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 536 {
 537         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 538
 539         image_read_ahead_cancel(imd);
 540
 541         imd->read_ahead_fd = file_data_ref(fd);
 542
 543         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 544
 545         image_read_ahead_start(imd);
 546 }
 547
 548 /*
 549  *-------------------------------------------------------------------
 550  * post buffering
 551  *-------------------------------------------------------------------
 552  */
 553
 554 static void image_cache_release_cb(FileData *fd)
 555 {
 556         g_object_unref(fd->pixbuf);
 557         fd->pixbuf = NULL;
 558 }
 559
 560 static FileCacheData *image_get_cache(void)
 561 {
 562         static FileCacheData *cache = NULL;
 563         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 564         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 565         return cache;
 566 }
 567
 568 static void image_cache_set(ImageWindow *imd, FileData *fd)
 569 {
 570         g_assert(fd->pixbuf);
 571
 572         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 573         file_data_send_notification(fd, NOTIFY_PIXBUF); /* to update histogram */
 574 }
 575
 576 static gint image_cache_get(ImageWindow *imd)
 577 {
 578         gint success;
 579
 580         success = file_cache_get(image_get_cache(), imd->image_fd);
 581         if (success)
 582                 {
 583                 g_assert(imd->image_fd->pixbuf);
 584                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 585                 }
 586
 587 //      file_cache_dump(image_get_cache());
 588         return success;
 589 }
 590
 591 /*
 592  *-------------------------------------------------------------------
 593  * loading
 594  *-------------------------------------------------------------------
 595  */
 596
 597 static void image_load_pixbuf_ready(ImageWindow *imd)
 598 {
 599         if (image_get_pixbuf(imd) || !imd->il) return;
 600
 601         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 602 }
 603
 604 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 605 {
 606         ImageWindow *imd = data;
 607         PixbufRenderer *pr;
 608
 609         pr = (PixbufRenderer *)imd->pr;
 610
 611         if (imd->delay_flip &&
 612             pr->pixbuf != image_loader_get_pixbuf(il))
 613                 {
 614                 return;
 615                 }
 616
 617         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 618
 619         pixbuf_renderer_area_changed(pr, x, y, w, h);
 620 }
 621
 622 static void image_load_done_cb(ImageLoader *il, gpointer data)
 623 {
 624         ImageWindow *imd = data;
 625
 626         DEBUG_1("%s image done", get_exec_time());
 627
 628         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 629                 {
 630                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
 631                 image_cache_set(imd, imd->image_fd);
 632                 }
 633         /* call the callback triggered by image_state after fd->pixbuf is set */
 634         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 635         image_state_unset(imd, IMAGE_STATE_LOADING);
 636
 637         if (!image_loader_get_pixbuf(imd->il))
 638                 {
 639                 GdkPixbuf *pixbuf;
 640
 641                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 642                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 643                 g_object_unref(pixbuf);
 644
 645                 imd->unknown = TRUE;
 646                 }
 647         else if (imd->delay_flip &&
 648             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 649                 {
 650                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 651                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 652                 }
 653
 654         image_loader_free(imd->il);
 655         imd->il = NULL;
 656
 657 //      image_post_process(imd, TRUE);
 658
 659         image_read_ahead_start(imd);
 660 }
 661
 662 static void image_load_size_cb(ImageLoader *il, guint width, guint height, gpointer data)
 663 {
 664         ImageWindow *imd = data;
 665
 666         DEBUG_1("image_load_size_cb: %dx%d", width, height);
 667         pixbuf_renderer_set_size_early((PixbufRenderer *)imd->pr, width, height);
 668 }
 669
 670 static void image_load_error_cb(ImageLoader *il, gpointer data)
 671 {
 672         DEBUG_1("%s image error", get_exec_time());
 673
 674         /* even on error handle it like it was done,
 675          * since we have a pixbuf with _something_ */
 676
 677         image_load_done_cb(il, data);
 678 }
 679
 680 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
 681 {
 682         g_assert(imd->il);
 683         if (override_old_signals)
 684                 {
 685                 /* override the old signals */
 686                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 687                 }
 688
 689         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 690         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 691         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 692         g_signal_connect(G_OBJECT(imd->il), "size_prepared", (GCallback)image_load_size_cb, imd);
 693 }
 694
 695 /* this read ahead is located here merely for the callbacks, above */
 696
 697 static gboolean image_read_ahead_check(ImageWindow *imd)
 698 {
 699         if (!imd->read_ahead_fd) return FALSE;
 700         if (imd->il) return FALSE;
 701
 702         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 703                 {
 704                 image_read_ahead_cancel(imd);
 705                 return FALSE;
 706                 }
 707
 708         if (imd->read_ahead_il)
 709                 {
 710                 imd->il = imd->read_ahead_il;
 711                 imd->read_ahead_il = NULL;
 712
 713                 image_load_set_signals(imd, TRUE);
 714
 715                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 716                 image_state_set(imd, IMAGE_STATE_LOADING);
 717
 718                 if (!imd->delay_flip)
 719                         {
 720                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 721                         }
 722
 723                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 724
 725                 file_data_unref(imd->read_ahead_fd);
 726                 imd->read_ahead_fd = NULL;
 727                 return TRUE;
 728                 }
 729         else if (imd->read_ahead_fd->pixbuf)
 730                 {
 731                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
 732
 733                 file_data_unref(imd->read_ahead_fd);
 734                 imd->read_ahead_fd = NULL;
 735
 736 //              image_post_process(imd, FALSE);
 737                 return TRUE;
 738                 }
 739
 740         image_read_ahead_cancel(imd);
 741         return FALSE;
 742 }
 743
 744 static gboolean image_load_begin(ImageWindow *imd, FileData *fd)
 745 {
 746         DEBUG_1("%s image begin", get_exec_time());
 747
 748         if (imd->il) return FALSE;
 749
 750         imd->completed = FALSE;
 751         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 752
 753         if (image_cache_get(imd))
 754                 {
 755                 DEBUG_1("from cache: %s", imd->image_fd->path);
 756                 return TRUE;
 757                 }
 758
 759         if (image_read_ahead_check(imd))
 760                 {
 761                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 762                 return TRUE;
 763                 }
 764
 765         if (!imd->delay_flip && image_get_pixbuf(imd))
 766                 {
 767                 PixbufRenderer *pr;
 768
 769                 pr = PIXBUF_RENDERER(imd->pr);
 770                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 771                 pr->pixbuf = NULL;
 772                 }
 773
 774         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 775
 776         imd->il = image_loader_new(fd);
 777
 778         image_load_set_signals(imd, FALSE);
 779
 780         if (!image_loader_start(imd->il))
 781                 {
 782                 DEBUG_1("image start error");
 783
 784                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 785
 786                 image_loader_free(imd->il);
 787                 imd->il = NULL;
 788
 789                 image_complete_util(imd, FALSE);
 790
 791                 return FALSE;
 792                 }
 793
 794         image_state_set(imd, IMAGE_STATE_LOADING);
 795
 796 /*
 797         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
 798                 {
 799                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 800                 }
 801 */
 802         return TRUE;
 803 }
 804
 805 static void image_reset(ImageWindow *imd)
 806 {
 807         /* stops anything currently being done */
 808
 809         DEBUG_1("%s image reset", get_exec_time());
 810
 811         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 812
 813         image_loader_free(imd->il);
 814         imd->il = NULL;
 815
 816         color_man_free((ColorMan *)imd->cm);
 817         imd->cm = NULL;
 818
 819         imd->delay_alter_type = ALTER_NONE;
 820
 821         image_state_set(imd, IMAGE_STATE_NONE);
 822 }
 823
 824 /*
 825  *-------------------------------------------------------------------
 826  * image changer
 827  *-------------------------------------------------------------------
 828  */
 829
 830 static void image_change_complete(ImageWindow *imd, gdouble zoom)
 831 {
 832         image_reset(imd);
 833         imd->unknown = TRUE;
 834
 835         if (!imd->image_fd)
 836                 {
 837                 image_change_pixbuf(imd, NULL, zoom, FALSE);
 838                 }
 839         else
 840                 {
 841
 842                 if (is_readable_file(imd->image_fd->path))
 843                         {
 844                         PixbufRenderer *pr;
 845
 846                         pr = PIXBUF_RENDERER(imd->pr);
 847                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
 848
 849                         if (image_load_begin(imd, imd->image_fd))
 850                                 {
 851                                 imd->unknown = FALSE;
 852                                 }
 853                         }
 854
 855                 if (imd->unknown == TRUE)
 856                         {
 857                         GdkPixbuf *pixbuf;
 858
 859                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 860                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 861                         g_object_unref(pixbuf);
 862                         }
 863                 }
 864
 865         image_update_util(imd);
 866 }
 867
 868 static void image_change_real(ImageWindow *imd, FileData *fd,
 869                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 870 {
 871
 872         imd->collection = cd;
 873         imd->collection_info = info;
 874
 875         if (imd->auto_refresh && imd->image_fd)
 876                 file_data_unregister_real_time_monitor(imd->image_fd);
 877
 878         file_data_unref(imd->image_fd);
 879         imd->image_fd = file_data_ref(fd);
 880
 881
 882         image_change_complete(imd, zoom);
 883
 884         image_update_title(imd);
 885         image_state_set(imd, IMAGE_STATE_IMAGE);
 886
 887         if (imd->auto_refresh && imd->image_fd)
 888                 file_data_register_real_time_monitor(imd->image_fd);
 889 }
 890
 891 /*
 892  *-------------------------------------------------------------------
 893  * focus stuff
 894  *-------------------------------------------------------------------
 895  */
 896
 897 static gboolean image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 898 {
 899         ImageWindow *imd = data;
 900
 901         if (imd->func_focus_in)
 902                 {
 903                 imd->func_focus_in(imd, imd->data_focus_in);
 904                 }
 905
 906         return TRUE;
 907 }
 908
 909 static gboolean image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 910 {
 911         ImageWindow *imd = data;
 912
 913         if (imd->func_scroll &&
 914             event && event->type == GDK_SCROLL)
 915                 {
 916                 imd->func_scroll(imd, event, imd->data_scroll);
 917                 return TRUE;
 918                 }
 919
 920         return FALSE;
 921 }
 922
 923 /*
 924  *-------------------------------------------------------------------
 925  * public interface
 926  *-------------------------------------------------------------------
 927  */
 928
 929 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 930                          const gchar *title, const gchar *title_right, gboolean show_zoom)
 931 {
 932         imd->top_window = window;
 933         g_free(imd->title);
 934         imd->title = g_strdup(title);
 935         g_free(imd->title_right);
 936         imd->title_right = g_strdup(title_right);
 937         imd->title_show_zoom = show_zoom;
 938
 939         if (!options->image.fit_window_to_image) window = NULL;
 940
 941         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 942
 943         image_update_title(imd);
 944 }
 945
 946 void image_set_update_func(ImageWindow *imd,
 947                            void (*func)(ImageWindow *imd, gpointer data),
 948                            gpointer data)
 949 {
 950         imd->func_update = func;
 951         imd->data_update = data;
 952 }
 953
 954 void image_set_complete_func(ImageWindow *imd,
 955                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
 956                              gpointer data)
 957 {
 958         imd->func_complete = func;
 959         imd->data_complete = data;
 960 }
 961
 962 void image_set_state_func(ImageWindow *imd,
 963                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 964                         gpointer data)
 965 {
 966         imd->func_state = func;
 967         imd->data_state = data;
 968 }
 969
 970
 971 void image_set_button_func(ImageWindow *imd,
 972                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
 973                            gpointer data)
 974 {
 975         imd->func_button = func;
 976         imd->data_button = data;
 977 }
 978
 979 void image_set_drag_func(ImageWindow *imd,
 980                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
 981                            gpointer data)
 982 {
 983         imd->func_drag = func;
 984         imd->data_drag = data;
 985 }
 986
 987 void image_set_scroll_func(ImageWindow *imd,
 988                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
 989                            gpointer data)
 990 {
 991         imd->func_scroll = func;
 992         imd->data_scroll = data;
 993 }
 994
 995 void image_set_scroll_notify_func(ImageWindow *imd,
 996                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
 997                                   gpointer data)
 998 {
 999         imd->func_scroll_notify = func;
1000         imd->data_scroll_notify = data;
1001 }
1002
1003 void image_set_focus_in_func(ImageWindow *imd,
1004                            void (*func)(ImageWindow *, gpointer),
1005                            gpointer data)
1006 {
1007         imd->func_focus_in = func;
1008         imd->data_focus_in = data;
1009 }
1010
1011 /* path, name */
1012
1013 const gchar *image_get_path(ImageWindow *imd)
1014 {
1015         if (imd->image_fd == NULL) return NULL;
1016         return imd->image_fd->path;
1017 }
1018
1019 const gchar *image_get_name(ImageWindow *imd)
1020 {
1021         if (imd->image_fd == NULL) return NULL;
1022         return imd->image_fd->name;
1023 }
1024
1025 FileData *image_get_fd(ImageWindow *imd)
1026 {
1027         return imd->image_fd;
1028 }
1029
1030 /* merely changes path string, does not change the image! */
1031 void image_set_fd(ImageWindow *imd, FileData *fd)
1032 {
1033         if (imd->auto_refresh && imd->image_fd)
1034                 file_data_unregister_real_time_monitor(imd->image_fd);
1035
1036         file_data_unref(imd->image_fd);
1037         imd->image_fd = file_data_ref(fd);
1038
1039         image_update_title(imd);
1040         image_state_set(imd, IMAGE_STATE_IMAGE);
1041
1042         if (imd->auto_refresh && imd->image_fd)
1043                 file_data_register_real_time_monitor(imd->image_fd);
1044 }
1045
1046 /* load a new image */
1047
1048 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1049 {
1050         if (imd->image_fd == fd) return;
1051
1052         image_change_real(imd, fd, NULL, NULL, zoom);
1053 }
1054
1055 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1056 {
1057         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1058 }
1059
1060 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1061 {
1062         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1063 }
1064
1065 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1066 {
1067         StereoPixbufData stereo_data = STEREO_PIXBUF_DEFAULT;
1068         /* read_exif and similar functions can actually notice that the file has changed and trigger
1069            a notification that removes the pixbuf from cache and unrefs it. Therefore we must ref it
1070            here before it is taken over by the renderer. */
1071         if (pixbuf) g_object_ref(pixbuf);
1072
1073         imd->orientation = EXIF_ORIENTATION_TOP_LEFT;
1074         if (imd->image_fd)
1075                 {
1076                 if (imd->image_fd->user_orientation)
1077                         {
1078                         imd->orientation = imd->image_fd->user_orientation;
1079                         }
1080                 else if (options->image.exif_rotate_enable)
1081                         {
1082                         imd->orientation = metadata_read_int(imd->image_fd, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
1083                         imd->image_fd->exif_orientation = imd->orientation;
1084                         }
1085                 }
1086
1087         if (pixbuf)
1088                 {
1089                 stereo_data = imd->user_stereo;
1090                 if (stereo_data == STEREO_PIXBUF_DEFAULT)
1091                         {
1092                         stereo_data = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(pixbuf), "stereo_data"));
1093                         }
1094                 }
1095
1096         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1097         if (imd->cm)
1098                 {
1099                 color_man_free(imd->cm);
1100                 imd->cm = NULL;
1101                 }
1102
1103         if (lazy)
1104                 {
1105                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation, stereo_data);
1106                 }
1107         else
1108                 {
1109                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1110                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1111                 pixbuf_renderer_set_stereo_data((PixbufRenderer *)imd->pr, stereo_data);
1112                 }
1113
1114         if (pixbuf) g_object_unref(pixbuf);
1115
1116         if (imd->color_profile_enable)
1117                 {
1118                 image_post_process_color(imd, 0, FALSE); /* TODO: error handling */
1119                 }
1120
1121         if (imd->cm || imd->desaturate)
1122                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1123
1124         image_state_set(imd, IMAGE_STATE_IMAGE);
1125 }
1126
1127 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1128 {
1129         if (!cd || !info || !g_list_find(cd->list, info)) return;
1130
1131         image_change_real(imd, info->fd, cd, info, zoom);
1132 }
1133
1134 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1135 {
1136         if (collection_to_number(imd->collection) >= 0)
1137                 {
1138                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1139                         {
1140                         if (info) *info = imd->collection_info;
1141                         }
1142                 else
1143                         {
1144                         if (info) *info = NULL;
1145                         }
1146                 return imd->collection;
1147                 }
1148
1149         if (info) *info = NULL;
1150         return NULL;
1151 }
1152
1153 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1154 {
1155         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1156                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1157
1158         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1159                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1160 }
1161
1162 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1163 {
1164         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1165                 g_signal_connect(G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1166
1167         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1168                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1169
1170         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1171                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1172 }
1173
1174 /* this is more like a move function
1175  * it moves most data from source to imd
1176  */
1177 void image_move_from_image(ImageWindow *imd, ImageWindow *source)
1178 {
1179         if (imd == source) return;
1180
1181         imd->unknown = source->unknown;
1182
1183         imd->collection = source->collection;
1184         imd->collection_info = source->collection_info;
1185
1186         image_loader_free(imd->il);
1187         imd->il = NULL;
1188
1189         image_set_fd(imd, image_get_fd(source));
1190
1191
1192         if (source->il)
1193                 {
1194                 imd->il = source->il;
1195                 source->il = NULL;
1196
1197                 image_loader_sync_data(imd->il, source, imd);
1198
1199                 imd->delay_alter_type = source->delay_alter_type;
1200                 source->delay_alter_type = ALTER_NONE;
1201                 }
1202
1203         imd->color_profile_enable = source->color_profile_enable;
1204         imd->color_profile_input = source->color_profile_input;
1205         imd->color_profile_use_image = source->color_profile_use_image;
1206         color_man_free((ColorMan *)imd->cm);
1207         imd->cm = NULL;
1208         if (source->cm)
1209                 {
1210                 ColorMan *cm;
1211
1212                 imd->cm = source->cm;
1213                 source->cm = NULL;
1214
1215                 cm = (ColorMan *)imd->cm;
1216                 cm->imd = imd;
1217                 cm->func_done_data = imd;
1218                 }
1219
1220         file_data_unref(imd->read_ahead_fd);
1221         source->read_ahead_fd = NULL;
1222
1223         imd->orientation = source->orientation;
1224         imd->desaturate = source->desaturate;
1225
1226         imd->user_stereo = source->user_stereo;
1227
1228         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1229
1230         if (imd->cm || imd->desaturate)
1231                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1232         else
1233                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1234
1235 }
1236
1237 /* this is  a copy function
1238  * source stays unchanged
1239  */
1240 void image_copy_from_image(ImageWindow *imd, ImageWindow *source)
1241 {
1242         if (imd == source) return;
1243
1244         imd->unknown = source->unknown;
1245
1246         imd->collection = source->collection;
1247         imd->collection_info = source->collection_info;
1248
1249         image_loader_free(imd->il);
1250         imd->il = NULL;
1251
1252         image_set_fd(imd, image_get_fd(source));
1253
1254
1255         imd->color_profile_enable = source->color_profile_enable;
1256         imd->color_profile_input = source->color_profile_input;
1257         imd->color_profile_use_image = source->color_profile_use_image;
1258         color_man_free((ColorMan *)imd->cm);
1259         imd->cm = NULL;
1260         if (source->cm)
1261                 {
1262                 ColorMan *cm;
1263
1264                 imd->cm = source->cm;
1265                 source->cm = NULL;
1266
1267                 cm = (ColorMan *)imd->cm;
1268                 cm->imd = imd;
1269                 cm->func_done_data = imd;
1270                 }
1271
1272         image_loader_free(imd->read_ahead_il);
1273         imd->read_ahead_il = source->read_ahead_il;
1274         source->read_ahead_il = NULL;
1275         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1276
1277         file_data_unref(imd->read_ahead_fd);
1278         imd->read_ahead_fd = source->read_ahead_fd;
1279         source->read_ahead_fd = NULL;
1280
1281         imd->completed = source->completed;
1282         imd->state = source->state;
1283         source->state = IMAGE_STATE_NONE;
1284
1285         imd->orientation = source->orientation;
1286         imd->desaturate = source->desaturate;
1287
1288         imd->user_stereo = source->user_stereo;
1289
1290         pixbuf_renderer_copy(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1291
1292         if (imd->cm || imd->desaturate)
1293                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1294         else
1295                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1296
1297 }
1298
1299
1300 /* manipulation */
1301
1302 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1303 {
1304         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1305 }
1306
1307 void image_reload(ImageWindow *imd)
1308 {
1309         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1310
1311         image_change_complete(imd, image_zoom_get(imd));
1312 }
1313
1314 void image_scroll(ImageWindow *imd, gint x, gint y)
1315 {
1316         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1317 }
1318
1319 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1320                            gdouble x_align, gdouble y_align)
1321 {
1322         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1323 }
1324
1325 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1326 {
1327         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1328 }
1329
1330 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1331 {
1332         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1333 }
1334
1335 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1336 {
1337         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1338 }
1339
1340 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1341 {
1342         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1343 }
1344
1345 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1346 {
1347         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1348 }
1349
1350 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1351 {
1352         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1353 }
1354
1355 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1356 {
1357         PixbufRenderer *pr;
1358         gdouble zoom;
1359         gint width, height;
1360
1361         pr = (PixbufRenderer *)imd->pr;
1362
1363         if (!pixbuf_renderer_get_pixbuf(pr) ||
1364             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1365
1366         if (vertical)
1367                 {
1368                 zoom = (gdouble)pr->viewport_height / height;
1369                 }
1370         else
1371                 {
1372                 zoom = (gdouble)pr->viewport_width / width;
1373                 }
1374
1375         if (zoom < 1.0)
1376                 {
1377                 zoom = 0.0 - 1.0 / zoom;
1378                 }
1379
1380         pixbuf_renderer_zoom_set(pr, zoom);
1381 }
1382
1383 gdouble image_zoom_get(ImageWindow *imd)
1384 {
1385         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1386 }
1387
1388 gdouble image_zoom_get_real(ImageWindow *imd)
1389 {
1390         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1391 }
1392
1393 gchar *image_zoom_get_as_text(ImageWindow *imd)
1394 {
1395         gdouble zoom;
1396         gdouble scale;
1397         gdouble l = 1.0;
1398         gdouble r = 1.0;
1399         gint pl = 0;
1400         gint pr = 0;
1401         gchar *approx = " ";
1402
1403         zoom = image_zoom_get(imd);
1404         scale = image_zoom_get_real(imd);
1405
1406         if (zoom > 0.0)
1407                 {
1408                 l = zoom;
1409                 }
1410         else if (zoom < 0.0)
1411                 {
1412                 r = 0.0 - zoom;
1413                 }
1414         else if (zoom == 0.0 && scale != 0.0)
1415                 {
1416                 if (scale >= 1.0)
1417                         {
1418                         l = scale;
1419                         }
1420                 else
1421                         {
1422                         r = 1.0 / scale;
1423                         }
1424                 approx = "~";
1425                 }
1426
1427         if (rint(l) != l) pl = 2;
1428         if (rint(r) != r) pr = 2;
1429
1430         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1431 }
1432
1433 gdouble image_zoom_get_default(ImageWindow *imd)
1434 {
1435         gdouble zoom = 1.0;
1436
1437         switch (options->image.zoom_mode)
1438         {
1439         case ZOOM_RESET_ORIGINAL:
1440                 break;
1441         case ZOOM_RESET_FIT_WINDOW:
1442                 zoom = 0.0;
1443                 break;
1444         case ZOOM_RESET_NONE:
1445                 if (imd) zoom = image_zoom_get(imd);
1446                 break;
1447         }
1448
1449         return zoom;
1450 }
1451
1452 /* stereo */
1453 gint image_stereo_get(ImageWindow *imd)
1454 {
1455         return pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1456 }
1457
1458 void image_stereo_set(ImageWindow *imd, gint stereo_mode)
1459 {
1460         DEBUG_1("Setting stereo mode %04x for imd %p", stereo_mode, imd);
1461         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1462 }
1463
1464 void image_stereo_swap(ImageWindow *imd)
1465 {
1466         gint stereo_mode = pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1467         stereo_mode ^= PR_STEREO_SWAP;
1468         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1469 }
1470
1471 StereoPixbufData image_stereo_pixbuf_get(ImageWindow *imd)
1472 {
1473         return imd->user_stereo;
1474 }
1475
1476 void image_stereo_pixbuf_set(ImageWindow *imd, StereoPixbufData stereo_mode)
1477 {
1478         imd->user_stereo = stereo_mode;
1479         image_reload(imd);
1480 }
1481
1482 /* read ahead */
1483
1484 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1485 {
1486         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1487
1488         if (fd)
1489                 {
1490                 if (!file_cache_get(image_get_cache(), fd))
1491                         {
1492                         image_read_ahead_set(imd, fd);
1493                         }
1494                 }
1495         else
1496                 {
1497                 image_read_ahead_cancel(imd);
1498                 }
1499 }
1500
1501 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1502 {
1503         ImageWindow *imd = data;
1504
1505         if (!imd || !image_get_pixbuf(imd) ||
1506             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1507             !imd->image_fd || /* nothing to reload */
1508             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1509             ) return;
1510
1511         if ((type & NOTIFY_REREAD) && fd == imd->image_fd)
1512                 {
1513                 /* there is no need to reload on NOTIFY_CHANGE,
1514                    modified files should be detacted anyway and NOTIFY_REREAD should be recieved
1515                    or they are removed from the filelist completely on "move" and "delete"
1516                 */
1517                 DEBUG_1("Notify image: %s %04x", fd->path, type);
1518                 image_reload(imd);
1519                 }
1520 }
1521
1522 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1523 {
1524         if (!enable && imd->auto_refresh && imd->image_fd)
1525                 file_data_unregister_real_time_monitor(imd->image_fd);
1526
1527         if (enable && !imd->auto_refresh && imd->image_fd)
1528                 file_data_register_real_time_monitor(imd->image_fd);
1529
1530         imd->auto_refresh = enable;
1531 }
1532
1533 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1534 {
1535         imd->top_window_sync = allow_sync;
1536
1537         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1538 }
1539
1540 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1541 {
1542         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1543 }
1544
1545 void image_background_set_color_from_options(ImageWindow *imd, gboolean fullscreen)
1546 {
1547         GdkColor *color = NULL;
1548
1549         if ((options->image.use_custom_border_color && !fullscreen) ||
1550             (options->image.use_custom_border_color_in_fullscreen && fullscreen))
1551                 {
1552                 color = &options->image.border_color;
1553                 }
1554
1555         image_background_set_color(imd, color);
1556 }
1557
1558 void image_color_profile_set(ImageWindow *imd,
1559                              gint input_type,
1560                              gboolean use_image)
1561 {
1562         if (!imd) return;
1563
1564         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
1565                 {
1566                 return;
1567                 }
1568
1569         imd->color_profile_input = input_type;
1570         imd->color_profile_use_image = use_image;
1571 }
1572
1573 gboolean image_color_profile_get(ImageWindow *imd,
1574                                  gint *input_type,
1575                                  gboolean *use_image)
1576 {
1577         if (!imd) return FALSE;
1578
1579         if (input_type) *input_type = imd->color_profile_input;
1580         if (use_image) *use_image = imd->color_profile_use_image;
1581
1582         return TRUE;
1583 }
1584
1585 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1586 {
1587         if (!imd) return;
1588
1589         if (imd->color_profile_enable == enable) return;
1590
1591         imd->color_profile_enable = enable;
1592 }
1593
1594 gboolean image_color_profile_get_use(ImageWindow *imd)
1595 {
1596         if (!imd) return FALSE;
1597
1598         return imd->color_profile_enable;
1599 }
1600
1601 gboolean image_color_profile_get_status(ImageWindow *imd, gchar **image_profile, gchar **screen_profile)
1602 {
1603         ColorMan *cm;
1604         if (!imd) return FALSE;
1605
1606         cm = imd->cm;
1607         if (!cm) return FALSE;
1608         return color_man_get_status(cm, image_profile, screen_profile);
1609
1610 }
1611
1612 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1613 {
1614         if (!imd ||
1615             imd->delay_flip == delay) return;
1616
1617         imd->delay_flip = delay;
1618
1619         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1620
1621         if (!imd->delay_flip && imd->il)
1622                 {
1623                 PixbufRenderer *pr;
1624
1625                 pr = PIXBUF_RENDERER(imd->pr);
1626                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1627                 pr->pixbuf = NULL;
1628
1629                 image_load_pixbuf_ready(imd);
1630                 }
1631 }
1632
1633 void image_to_root_window(ImageWindow *imd, gboolean scaled)
1634 {
1635 #if !GTK_CHECK_VERSION(3,0,0)
1636         GdkScreen *screen;
1637         GdkWindow *rootwindow;
1638         GdkPixmap *pixmap;
1639         GdkPixbuf *pixbuf;
1640         GdkPixbuf *pb;
1641         gint width, height;
1642
1643         if (!imd) return;
1644
1645         pixbuf = image_get_pixbuf(imd);
1646         if (!pixbuf) return;
1647
1648         screen = gtk_widget_get_screen(imd->widget);
1649         rootwindow = gdk_screen_get_root_window(screen);
1650         if (gdk_window_get_visual(rootwindow) != gdk_visual_get_system()) return;
1651
1652         if (scaled)
1653                 {
1654                 width = gdk_screen_width();
1655                 height = gdk_screen_height();
1656                 }
1657         else
1658                 {
1659                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1660                 }
1661
1662         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1663
1664         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1665         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1666         gdk_window_clear(rootwindow);
1667         g_object_unref(pb);
1668         g_object_unref(pixmap);
1669
1670         gdk_flush();
1671 #endif
1672 }
1673
1674 void image_select(ImageWindow *imd, gboolean select)
1675 {
1676         if (!imd->has_frame) return;
1677
1678         if (select)
1679                 {
1680                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1681                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1682                 }
1683         else
1684                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1685 }
1686
1687 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1688 {
1689         if (!imd->has_frame) return;
1690
1691         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1692         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
1693 }
1694
1695 void image_grab_focus(ImageWindow *imd)
1696 {
1697         if (imd->has_frame)
1698                 {
1699                 gtk_widget_grab_focus(imd->frame);
1700                 }
1701         else
1702                 {
1703                 gtk_widget_grab_focus(imd->widget);
1704                 }
1705 }
1706
1707
1708 /*
1709  *-------------------------------------------------------------------
1710  * prefs sync
1711  *-------------------------------------------------------------------
1712  */
1713
1714 static void image_options_set(ImageWindow *imd)
1715 {
1716         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1717                                         "zoom_2pass", options->image.zoom_2pass,
1718                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1719                                         "scroll_reset", options->image.scroll_reset_method,
1720                                         "cache_display", options->image.tile_cache_max,
1721                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1722                                         "window_limit", options->image.limit_window_size,
1723                                         "window_limit_value", options->image.max_window_size,
1724                                         "autofit_limit", options->image.limit_autofit_size,
1725                                         "autofit_limit_value", options->image.max_autofit_size,
1726
1727                                         NULL);
1728
1729         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1730
1731         image_stereo_set(imd, options->stereo.mode);
1732         pixbuf_renderer_stereo_fixed_set((PixbufRenderer *)imd->pr,
1733                                         options->stereo.fixed_w, options->stereo.fixed_h,
1734                                         options->stereo.fixed_x1, options->stereo.fixed_y1,
1735                                         options->stereo.fixed_x2, options->stereo.fixed_y2);
1736 }
1737
1738 void image_options_sync(void)
1739 {
1740         GList *work;
1741
1742         work = image_list;
1743         while (work)
1744                 {
1745                 ImageWindow *imd;
1746
1747                 imd = work->data;
1748                 work = work->next;
1749
1750                 image_options_set(imd);
1751                 }
1752 }
1753
1754 /*
1755  *-------------------------------------------------------------------
1756  * init / destroy
1757  *-------------------------------------------------------------------
1758  */
1759
1760 static void image_free(ImageWindow *imd)
1761 {
1762         image_list = g_list_remove(image_list, imd);
1763
1764         if (imd->auto_refresh && imd->image_fd)
1765                 file_data_unregister_real_time_monitor(imd->image_fd);
1766
1767         file_data_unregister_notify_func(image_notify_cb, imd);
1768
1769         image_reset(imd);
1770
1771         image_read_ahead_cancel(imd);
1772
1773         file_data_unref(imd->image_fd);
1774         g_free(imd->title);
1775         g_free(imd->title_right);
1776         g_free(imd);
1777 }
1778
1779 static void image_destroy_cb(GtkWidget *widget, gpointer data)
1780 {
1781         ImageWindow *imd = data;
1782         image_free(imd);
1783 }
1784 #if GTK_CHECK_VERSION(3,0,0)
1785 gboolean selectable_frame_draw_cb(GtkWidget *widget, cairo_t *cr, gpointer data)
1786 {
1787         GtkAllocation allocation;
1788         gtk_widget_get_allocation(widget, &allocation);
1789         gtk_paint_flat_box(gtk_widget_get_style(widget),
1790                            cr,
1791                            gtk_widget_get_state(widget),
1792                            gtk_frame_get_shadow_type(GTK_FRAME(widget)),
1793                            widget,
1794                            NULL,
1795                            allocation.x + 3, allocation.y + 3,
1796                            allocation.width - 6, allocation.height - 6);
1797
1798         if (gtk_widget_has_focus(widget))
1799                 {
1800                 gtk_paint_focus(gtk_widget_get_style(widget), cr, GTK_STATE_ACTIVE,
1801                                 widget, "image_window",
1802                                 allocation.x, allocation.y,
1803                                 allocation.width - 1, allocation.height - 1);
1804                 }
1805         else
1806                 {
1807                 gtk_paint_shadow(gtk_widget_get_style(widget), cr, GTK_STATE_NORMAL, GTK_SHADOW_IN,
1808                                  widget, "image_window",
1809                                  allocation.x, allocation.y,
1810                                  allocation.width - 1, allocation.height - 1);
1811                 }
1812         return FALSE;
1813 }
1814
1815 #else
1816 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1817 {
1818         GtkAllocation allocation;
1819         gtk_widget_get_allocation(widget, &allocation);
1820         gtk_paint_flat_box(gtk_widget_get_style(widget),
1821                            gtk_widget_get_window(widget),
1822                            gtk_widget_get_state(widget),
1823                            gtk_frame_get_shadow_type(GTK_FRAME(widget)),
1824                            NULL,
1825                            widget,
1826                            NULL,
1827                            allocation.x + 3, allocation.y + 3,
1828                            allocation.width - 6, allocation.height - 6);
1829
1830         if (gtk_widget_has_focus(widget))
1831                 {
1832                 gtk_paint_focus(gtk_widget_get_style(widget), gtk_widget_get_window(widget), GTK_STATE_ACTIVE,
1833                                 &event->area, widget, "image_window",
1834                                 allocation.x, allocation.y,
1835                                 allocation.width - 1, allocation.height - 1);
1836                 }
1837         else
1838                 {
1839                 gtk_paint_shadow(gtk_widget_get_style(widget), gtk_widget_get_window(widget), GTK_STATE_NORMAL, GTK_SHADOW_IN,
1840                                  &event->area, widget, "image_window",
1841                                  allocation.x, allocation.y,
1842                                  allocation.width - 1, allocation.height - 1);
1843                 }
1844         return FALSE;
1845 }
1846 #endif
1847
1848
1849 void image_set_frame(ImageWindow *imd, gboolean frame)
1850 {
1851         frame = !!frame;
1852
1853         if (frame == imd->has_frame) return;
1854
1855         gtk_widget_hide(imd->pr);
1856
1857         if (frame)
1858                 {
1859                 imd->frame = gtk_frame_new(NULL);
1860                 g_object_ref(imd->pr);
1861                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1862                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1863
1864                 g_object_unref(imd->pr);
1865                 gtk_widget_set_can_focus(imd->frame, TRUE);
1866                 gtk_widget_set_app_paintable(imd->frame, TRUE);
1867
1868 #if GTK_CHECK_VERSION(3,0,0)
1869                 g_signal_connect(G_OBJECT(imd->frame), "draw",
1870                                  G_CALLBACK(selectable_frame_draw_cb), NULL);
1871 #else
1872                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1873                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1874 #endif
1875                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1876                                  G_CALLBACK(image_focus_in_cb), imd);
1877
1878                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1879                 gtk_widget_show(imd->frame);
1880                 }
1881         else
1882                 {
1883                 g_object_ref(imd->pr);
1884                 if (imd->frame)
1885                         {
1886                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1887                         gtk_widget_destroy(imd->frame);
1888                         imd->frame = NULL;
1889                         }
1890                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1891
1892                 g_object_unref(imd->pr);
1893                 }
1894
1895         gtk_widget_show(imd->pr);
1896
1897         imd->has_frame = frame;
1898 }
1899
1900 ImageWindow *image_new(gboolean frame)
1901 {
1902         ImageWindow *imd;
1903
1904         imd = g_new0(ImageWindow, 1);
1905
1906         imd->unknown = TRUE;
1907         imd->has_frame = -1; /* not initialized; for image_set_frame */
1908         imd->delay_alter_type = ALTER_NONE;
1909         imd->state = IMAGE_STATE_NONE;
1910         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1911         imd->orientation = 1;
1912
1913         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1914
1915         image_options_set(imd);
1916
1917         imd->widget = gtk_vbox_new(0, 0);
1918
1919         image_set_frame(imd, frame);
1920
1921         image_set_selectable(imd, 0);
1922
1923         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1924                          G_CALLBACK(image_click_cb), imd);
1925         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1926                          G_CALLBACK(image_scroll_notify_cb), imd);
1927
1928         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1929                          G_CALLBACK(image_scroll_cb), imd);
1930
1931         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1932                          G_CALLBACK(image_destroy_cb), imd);
1933
1934         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1935                          G_CALLBACK(image_zoom_cb), imd);
1936         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1937                          G_CALLBACK(image_render_complete_cb), imd);
1938         g_signal_connect(G_OBJECT(imd->pr), "drag",
1939                          G_CALLBACK(image_drag_cb), imd);
1940
1941         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1942
1943         image_list = g_list_append(image_list, imd);
1944
1945         return imd;
1946 }
1947 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */