src/image.cc

   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 #include "collect-table.h"
  26 #include "color-man.h"
  27 #include "exif.h"
  28 #include "metadata.h"
  29 #include "history-list.h"
  30 #include "image-load.h"
  31 #include "layout.h"
  32 #include "layout-image.h"
  33 #include "pixbuf-renderer.h"
  34 #include "pixbuf-util.h"
  35 #include "ui-fileops.h"
  36 #include "filecache.h"
  37
  38 #include <cmath>
  39
  40 static GList *image_list = nullptr;
  41
  42 static void image_read_ahead_start(ImageWindow *imd);
  43 static void image_cache_set(ImageWindow *imd, FileData *fd);
  44
  45 // For draw rectangle function
  46 static gint pixbuf_start_x;
  47 static gint pixbuf_start_y;
  48 static gint image_start_x;
  49 static gint image_start_y;
  50 static gint rect_x1, rect_x2, rect_y1, rect_y2;
  51 static gint rect_id = 0;
  52
  53 /*
  54  *-------------------------------------------------------------------
  55  * 'signals'
  56  *-------------------------------------------------------------------
  57  */
  58
  59 static void image_click_cb(PixbufRenderer *UNUSED(pr), GdkEventButton *event, gpointer data)
  60 {
  61         auto imd = static_cast<ImageWindow *>(data);
  62         if (!options->image_lm_click_nav && event->button == MOUSE_BUTTON_MIDDLE)
  63                 {
  64                 imd->mouse_wheel_mode = !imd->mouse_wheel_mode;
  65                 }
  66
  67         if (imd->func_button)
  68                 {
  69                 imd->func_button(imd, event, imd->data_button);
  70                 }
  71 }
  72
  73 static void switch_coords_orientation(ImageWindow *imd, gint x, gint y, gint width, gint height)
  74 {
  75         switch (imd->orientation)
  76                 {
  77                 case EXIF_ORIENTATION_TOP_LEFT:
  78                         /* normal -- nothing to do */
  79                         rect_x1 = image_start_x;
  80                         rect_y1 = image_start_y;
  81                         rect_x2 = x;
  82                         rect_y2 = y;
  83                         break;
  84                 case EXIF_ORIENTATION_TOP_RIGHT:
  85                         /* mirrored */
  86                         rect_x1 = width - x;
  87                         rect_y1 = image_start_y;
  88                         rect_x2 = width - image_start_x;
  89                         rect_y2 = y;
  90                         break;
  91                 case EXIF_ORIENTATION_BOTTOM_RIGHT:
  92                         /* upside down */
  93                         rect_x1 = width - x;
  94                         rect_y1 = height - y;
  95                         rect_x2 = width - image_start_x;
  96                         rect_y2 = height - image_start_y;
  97                         break;
  98                 case EXIF_ORIENTATION_BOTTOM_LEFT:
  99                         /* flipped */
 100                         rect_x1 = image_start_x;
 101                         rect_y1 = height - y;
 102                         rect_x2 = x;
 103                         rect_y2 = height - image_start_y;
 104                         break;
 105                 case EXIF_ORIENTATION_LEFT_TOP:
 106                         /* left mirrored */
 107                         rect_x1 = image_start_y;
 108                         rect_y1 = image_start_x;
 109                         rect_x2 = y;
 110                         rect_y2 = x;
 111                         break;
 112                 case EXIF_ORIENTATION_RIGHT_TOP:
 113                         /* rotated -90 (270) */
 114                         rect_x1 = image_start_y;
 115                         rect_y1 = width - x;
 116                         rect_x2 = y;
 117                         rect_y2 = width - image_start_x;
 118                         break;
 119                 case EXIF_ORIENTATION_RIGHT_BOTTOM:
 120                         /* right mirrored */
 121                         rect_x1 = height - y;
 122                         rect_y1 = width - x;
 123                         rect_x2 = height - image_start_y;
 124                         rect_y2 = width - image_start_x;
 125                         break;
 126                 case EXIF_ORIENTATION_LEFT_BOTTOM:
 127                         /* rotated 90 */
 128                         rect_x1 = height - y;
 129                         rect_y1 = image_start_x;
 130                         rect_x2 = height - image_start_y;
 131                         rect_y2 = x;
 132                         break;
 133                 default:
 134                         /* The other values are out of range */
 135                         break;
 136                 }
 137 }
 138
 139 static void image_press_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
 140 {
 141         auto imd = static_cast<ImageWindow *>(data);
 142         LayoutWindow *lw;
 143         gint x_pixel, y_pixel;
 144
 145         if(options->draw_rectangle)
 146                 {
 147                 pixbuf_renderer_get_mouse_position(pr, &x_pixel, &y_pixel);
 148
 149                 pixbuf_start_x = event->x;
 150                 pixbuf_start_y = event->y;
 151
 152                 if (x_pixel == -1)
 153                         {
 154                         image_start_x = 0;
 155                         }
 156                 else
 157                         {
 158                         image_start_x = x_pixel;
 159                         }
 160
 161                 if (y_pixel == -1)
 162                         {
 163                         image_start_y = 0;
 164                         }
 165                 else
 166                         {
 167                         image_start_y = y_pixel;
 168                         }
 169                 }
 170
 171         if (rect_id)
 172                 {
 173                 pixbuf_renderer_overlay_remove(reinterpret_cast<PixbufRenderer *>(imd->pr), rect_id);
 174                 }
 175
 176         lw = layout_find_by_image(imd);
 177         if (!lw)
 178                 {
 179                 layout_valid(&lw);
 180                 }
 181
 182         if (lw && event->button == MOUSE_BUTTON_LEFT && event->type == GDK_2BUTTON_PRESS
 183                                                                                                 && !options->image_lm_click_nav)
 184                 {
 185                 layout_image_full_screen_toggle(lw);
 186                 }
 187 }
 188
 189 static void image_drag_cb(PixbufRenderer *pr, GdkEventMotion *event, gpointer data)
 190 {
 191         auto imd = static_cast<ImageWindow *>(data);
 192         gint width, height;
 193         gint rect_width;
 194         gint rect_height;
 195         GdkPixbuf *rect_pixbuf;
 196         gint x_pixel, y_pixel;
 197         gint image_x_pixel, image_y_pixel;
 198
 199         if (options->draw_rectangle)
 200                 {
 201                 pixbuf_renderer_get_image_size(pr, &width, &height);
 202                 pixbuf_renderer_get_mouse_position(pr, &x_pixel, &y_pixel);
 203
 204                 if (x_pixel == -1)
 205                         {
 206                         image_x_pixel = width;
 207                         }
 208                 else
 209                         {
 210                         image_x_pixel = x_pixel;
 211                         }
 212
 213                 if (y_pixel == -1)
 214                         {
 215                         image_y_pixel = height;
 216                         }
 217                 else
 218                         {
 219                         image_y_pixel = y_pixel;
 220                         }
 221
 222                 switch_coords_orientation(imd, image_x_pixel, image_y_pixel, width, height);
 223                 if (rect_id)
 224                         {
 225                         pixbuf_renderer_overlay_remove(reinterpret_cast<PixbufRenderer *>(imd->pr), rect_id);
 226                         }
 227
 228                 rect_width = pr->drag_last_x - pixbuf_start_x;
 229                 if (rect_width <= 0)
 230                         {
 231                         rect_width = 1;
 232                         }
 233                 rect_height = pr->drag_last_y - pixbuf_start_y;
 234                 if (rect_height <= 0)
 235                         {
 236                         rect_height = 1;
 237                         }
 238
 239                 rect_pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, rect_width, rect_height);
 240                 pixbuf_set_rect_fill(rect_pixbuf, 0, 0, rect_width, rect_height, 255, 255, 255, 0);
 241                 pixbuf_set_rect(rect_pixbuf, 1, 1, rect_width-2, rect_height - 2, 0, 0, 0, 255, 1, 1, 1, 1);
 242                 pixbuf_set_rect(rect_pixbuf, 2, 2, rect_width-4, rect_height - 4, 255, 255, 255, 255, 1, 1, 1, 1);
 243
 244                 rect_id = pixbuf_renderer_overlay_add(reinterpret_cast<PixbufRenderer *>(imd->pr), rect_pixbuf, pixbuf_start_x, pixbuf_start_y, OVL_NORMAL);
 245                 }
 246
 247         pixbuf_renderer_get_scaled_size(pr, &width, &height);
 248
 249         if (imd->func_drag)
 250                 {
 251                 imd->func_drag(imd, event,
 252                                static_cast<gfloat>(pr->drag_last_x - event->x) / width,
 253                                static_cast<gfloat>(pr->drag_last_y - event->y) / height,
 254                                imd->data_button);
 255                 }
 256 }
 257
 258 static void image_scroll_notify_cb(PixbufRenderer *pr, gpointer data)
 259 {
 260         auto imd = static_cast<ImageWindow *>(data);
 261
 262         if (imd->func_scroll_notify && pr->scale)
 263                 {
 264                 imd->func_scroll_notify(imd,
 265                                         static_cast<gint>(static_cast<gdouble>(pr->x_scroll) / pr->scale),
 266                                         static_cast<gint>(static_cast<gdouble>(pr->y_scroll) / pr->scale),
 267                                         static_cast<gint>(static_cast<gdouble>(pr->image_width) - pr->vis_width / pr->scale),
 268                                         static_cast<gint>(static_cast<gdouble>(pr->image_height) - pr->vis_height / pr->scale),
 269                                         imd->data_scroll_notify);
 270                 }
 271 }
 272
 273 static void image_update_util(ImageWindow *imd)
 274 {
 275         if (imd->func_update) imd->func_update(imd, imd->data_update);
 276 }
 277
 278
 279 static void image_complete_util(ImageWindow *imd, gboolean preload)
 280 {
 281         if (imd->il && image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il)) return;
 282
 283         DEBUG_1("%s image load completed \"%s\" (%s)", get_exec_time(),
 284                           (preload) ? (imd->read_ahead_fd ? imd->read_ahead_fd->path : "null") :
 285                                       (imd->image_fd ? imd->image_fd->path : "null"),
 286                           (preload) ? "preload" : "current");
 287
 288         if (!preload) imd->completed = TRUE;
 289         if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
 290 }
 291
 292 static void image_render_complete_cb(PixbufRenderer *UNUSED(pr), gpointer data)
 293 {
 294         auto imd = static_cast<ImageWindow *>(data);
 295
 296         image_complete_util(imd, FALSE);
 297 }
 298
 299 static void image_state_set(ImageWindow *imd, ImageState state)
 300 {
 301         if (state == IMAGE_STATE_NONE)
 302                 {
 303                 imd->state = state;
 304                 }
 305         else
 306                 {
 307                 imd->state = static_cast<ImageState>(imd->state | state);
 308                 }
 309         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 310 }
 311
 312 static void image_state_unset(ImageWindow *imd, ImageState state)
 313 {
 314         imd->state = static_cast<ImageState>(imd->state & ~state);
 315         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 316 }
 317
 318 static void image_zoom_cb(PixbufRenderer *UNUSED(pr), gdouble UNUSED(zoom), gpointer data)
 319 {
 320         auto imd = static_cast<ImageWindow *>(data);
 321
 322         if (imd->title_show_zoom) image_update_title(imd);
 323         image_state_set(imd, IMAGE_STATE_IMAGE);
 324         image_update_util(imd);
 325 }
 326
 327 /*
 328  *-------------------------------------------------------------------
 329  * misc
 330  *-------------------------------------------------------------------
 331  */
 332
 333 void image_update_title(ImageWindow *imd)
 334 {
 335         gchar *title = nullptr;
 336         gchar *zoom = nullptr;
 337         gchar *collection = nullptr;
 338         LayoutWindow *lw;
 339         gchar *lw_ident = nullptr;
 340
 341         if (!imd->top_window) return;
 342
 343         if (imd->collection && collection_to_number(imd->collection) >= 0)
 344                 {
 345                 const gchar *name = imd->collection->name;
 346                 if (!name) name = _("Untitled");
 347                 collection = g_strdup_printf(_(" (Collection %s)"), name);
 348                 }
 349
 350         if (imd->title_show_zoom)
 351                 {
 352                 gchar *buf = image_zoom_get_as_text(imd);
 353                 zoom = g_strconcat(" [", buf, "]", NULL);
 354                 g_free(buf);
 355                 }
 356
 357         lw = layout_find_by_image(imd);
 358         if (lw)
 359                 {
 360                 lw_ident = g_strconcat(" (", lw->options.id, ")", NULL);
 361                 }
 362
 363         title = g_strdup_printf("%s%s%s%s%s%s%s",
 364                 imd->title ? imd->title : "",
 365                 imd->image_fd ? imd->image_fd->name : "",
 366                 zoom ? zoom : "",
 367                 collection ? collection : "",
 368                 imd->image_fd ? " - " : "",
 369                 imd->title_right ? imd->title_right : "",
 370                 options->show_window_ids ? (lw_ident ? lw_ident : "") : ""
 371                 );
 372         if (lw_ident)
 373                 {
 374                 g_free(lw_ident);
 375                 }
 376
 377         gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
 378
 379         g_free(title);
 380         g_free(zoom);
 381         g_free(collection);
 382 }
 383
 384 /*
 385  *-------------------------------------------------------------------
 386  * rotation, flip, etc.
 387  *-------------------------------------------------------------------
 388  */
 389 static gboolean image_get_x11_screen_profile(ImageWindow *imd, guchar **screen_profile, gint *screen_profile_len)
 390 {
 391         GdkScreen *screen = gtk_widget_get_screen(imd->widget);;
 392         GdkAtom    type   = GDK_NONE;
 393         gint       format = 0;
 394
 395         return (gdk_property_get(gdk_screen_get_root_window(screen),
 396                                  gdk_atom_intern ("_ICC_PROFILE", FALSE),
 397                                  GDK_NONE,
 398                                  0, 64 * 1024 * 1024, FALSE,
 399                                  &type, &format, screen_profile_len, screen_profile) && *screen_profile_len > 0);
 400 }
 401
 402 static gboolean image_post_process_color(ImageWindow *imd, gint start_row, gboolean run_in_bg)
 403 {
 404         ColorMan *cm;
 405         ColorManProfileType input_type;
 406         ColorManProfileType screen_type;
 407         const gchar *input_file = nullptr;
 408         const gchar *screen_file = nullptr;
 409         guchar *profile = nullptr;
 410         guint profile_len;
 411         guchar *screen_profile = nullptr;
 412         gint screen_profile_len;
 413         ExifData *exif;
 414
 415         if (imd->cm) return FALSE;
 416
 417         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
 418             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
 419                 {
 420                 const gchar *file = options->color_profile.input_file[imd->color_profile_input - COLOR_PROFILE_FILE];
 421
 422                 if (!is_readable_file(file)) return FALSE;
 423
 424                 input_type = COLOR_PROFILE_FILE;
 425                 input_file = file;
 426                 }
 427         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
 428                  imd->color_profile_input <  COLOR_PROFILE_FILE)
 429                 {
 430                 input_type = static_cast<ColorManProfileType>(imd->color_profile_input);
 431                 input_file = nullptr;
 432                 }
 433         else
 434                 {
 435                 return FALSE;
 436                 }
 437
 438         if (options->color_profile.use_x11_screen_profile &&
 439             image_get_x11_screen_profile(imd, &screen_profile, &screen_profile_len))
 440                 {
 441                 screen_type = COLOR_PROFILE_MEM;
 442                 DEBUG_1("Using X11 screen profile, length: %d", screen_profile_len);
 443                 }
 444         else if (options->color_profile.screen_file &&
 445             is_readable_file(options->color_profile.screen_file))
 446                 {
 447                 screen_type = COLOR_PROFILE_FILE;
 448                 screen_file = options->color_profile.screen_file;
 449                 }
 450         else
 451                 {
 452                 screen_type = COLOR_PROFILE_SRGB;
 453                 screen_file = nullptr;
 454                 }
 455
 456
 457         imd->color_profile_from_image = COLOR_PROFILE_NONE;
 458
 459         exif = exif_read_fd(imd->image_fd);
 460
 461         if (exif)
 462                 {
 463                 if (g_strcmp0(imd->image_fd->format_name, "heif") == 0)
 464                         {
 465                         profile = heif_color_profile(imd->image_fd, &profile_len);
 466                         }
 467
 468                 if (!profile)
 469                         {
 470                         profile = exif_get_color_profile(exif, &profile_len);
 471                         }
 472
 473                 if (profile)
 474                         {
 475                         if (!imd->color_profile_use_image)
 476                                 {
 477                                 g_free(profile);
 478                                 profile = nullptr;
 479                                 }
 480                         DEBUG_1("Found embedded color profile");
 481                         imd->color_profile_from_image = COLOR_PROFILE_MEM;
 482                         }
 483                 else
 484                         {
 485                         gchar *interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
 486
 487                         if (interop_index)
 488                                 {
 489                                 /* Exif 2.21 specification */
 490                                 if (!strcmp(interop_index, "R98"))
 491                                         {
 492                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 493                                         DEBUG_1("Found EXIF 2.21 ColorSpace of sRGB");
 494                                         }
 495                                 else if (!strcmp(interop_index, "R03"))
 496                                         {
 497                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 498                                         DEBUG_1("Found EXIF 2.21 ColorSpace of AdobeRGB");
 499                                         }
 500                                 g_free(interop_index);
 501                                 }
 502                         else
 503                                 {
 504                                 gint cs;
 505
 506                                 /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
 507                                 if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
 508                                 if (cs == 1)
 509                                         {
 510                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 511                                         DEBUG_1("Found EXIF 2.2 ColorSpace of sRGB");
 512                                         }
 513                                 else if (cs == 2)
 514                                         {
 515                                         /* non-standard way of specifying AdobeRGB (used by some software) */
 516                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 517                                         DEBUG_1("Found EXIF 2.2 ColorSpace of AdobeRGB");
 518                                         }
 519                                 }
 520
 521                         if (imd->color_profile_use_image && imd->color_profile_from_image != COLOR_PROFILE_NONE)
 522                                {
 523                                input_type = static_cast<ColorManProfileType>(imd->color_profile_from_image);
 524                                input_file = nullptr;
 525                                }
 526                         }
 527
 528                 exif_free_fd(imd->image_fd, exif);
 529                 }
 530
 531
 532         if (profile)
 533                 {
 534                 cm = color_man_new_embedded(run_in_bg ? imd : nullptr, nullptr,
 535                                             profile, profile_len,
 536                                             screen_type, screen_file, screen_profile, screen_profile_len);
 537                 g_free(profile);
 538                 }
 539         else
 540                 {
 541                 cm = color_man_new(run_in_bg ? imd : nullptr, nullptr,
 542                                    input_type, input_file,
 543                                    screen_type, screen_file, screen_profile, screen_profile_len);
 544                 }
 545
 546         if (cm)
 547                 {
 548                 if (start_row > 0)
 549                         {
 550                         cm->row = start_row;
 551                         cm->incremental_sync = TRUE;
 552                         }
 553
 554                 imd->cm = cm;
 555                 }
 556
 557         image_update_util(imd);
 558
 559         if (screen_profile)
 560                 {
 561                 g_free(screen_profile);
 562                 screen_profile = nullptr;
 563                 }
 564
 565         return !!cm;
 566 }
 567
 568
 569 static void image_post_process_tile_color_cb(PixbufRenderer *UNUSED(pr), GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 570 {
 571         auto imd = static_cast<ImageWindow *>(data);
 572         if (imd->cm) color_man_correct_region(static_cast<ColorMan *>(imd->cm), *pixbuf, x, y, w, h);
 573         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 574         if (imd->overunderexposed) pixbuf_highlight_overunderexposed(*pixbuf, x, y, w, h);
 575 }
 576
 577 void image_alter_orientation(ImageWindow *imd, FileData *fd_n, AlterType type)
 578 {
 579         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 580         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 581         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 582         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 583         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 584
 585         gint orientation;
 586
 587         if (!imd || !imd->pr || !imd->image_fd || !fd_n) return;
 588
 589         orientation = EXIF_ORIENTATION_TOP_LEFT;
 590         {
 591         if (fd_n->user_orientation)
 592                 {
 593                 orientation = fd_n->user_orientation;
 594                 }
 595         else
 596                 if (options->metadata.write_orientation)
 597                         {
 598                         if (g_strcmp0(imd->image_fd->format_name, "heif") == 0)
 599                                 {
 600                                 orientation = EXIF_ORIENTATION_TOP_LEFT;
 601                                 }
 602                         else
 603                                 {
 604                                 orientation = metadata_read_int(fd_n, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
 605                                 }
 606                         }
 607         }
 608
 609         switch (type)
 610                 {
 611                 case ALTER_ROTATE_90:
 612                         orientation = rotate_90[orientation];
 613                         break;
 614                 case ALTER_ROTATE_90_CC:
 615                         orientation = rotate_90_cc[orientation];
 616                         break;
 617                 case ALTER_ROTATE_180:
 618                         orientation = rotate_180[orientation];
 619                         break;
 620                 case ALTER_MIRROR:
 621                         orientation = mirror[orientation];
 622                         break;
 623                 case ALTER_FLIP:
 624                         orientation = flip[orientation];
 625                         break;
 626                 case ALTER_NONE:
 627                         orientation = fd_n->exif_orientation ? fd_n->exif_orientation : 1;
 628                         break;
 629                 default:
 630                         return;
 631                         break;
 632                 }
 633
 634         if (orientation != (fd_n->exif_orientation ? fd_n->exif_orientation : 1))
 635                 {
 636                 if (g_strcmp0(fd_n->format_name, "heif") != 0)
 637                         {
 638                         if (!options->metadata.write_orientation)
 639                                 {
 640                                 /* user_orientation does not work together with options->metadata.write_orientation,
 641                                    use either one or the other.
 642                                    we must however handle switching metadata.write_orientation on and off, therefore
 643                                    we just disable referencing new fd's, not unreferencing the old ones
 644                                 */
 645                                 if (fd_n->user_orientation == 0) file_data_ref(fd_n);
 646                                 fd_n->user_orientation = orientation;
 647                                 }
 648                         }
 649                 else
 650                         {
 651                         if (fd_n->user_orientation == 0) file_data_ref(fd_n);
 652                         fd_n->user_orientation = orientation;
 653                         }
 654                 }
 655         else
 656                 {
 657                 if (fd_n->user_orientation != 0) file_data_unref(fd_n);
 658                 fd_n->user_orientation = 0;
 659                 }
 660
 661         if (g_strcmp0(fd_n->format_name, "heif") != 0)
 662                 {
 663                 if (options->metadata.write_orientation)
 664                         {
 665                         if (type == ALTER_NONE)
 666                                 {
 667                                 metadata_write_revert(fd_n, ORIENTATION_KEY);
 668                                 }
 669                         else
 670                                 {
 671                                 metadata_write_int(fd_n, ORIENTATION_KEY, orientation);
 672                                 }
 673                         }
 674                 }
 675
 676         if (imd->image_fd == fd_n && (!options->metadata.write_orientation || options->image.exif_rotate_enable))
 677                 {
 678                 imd->orientation = orientation;
 679                 pixbuf_renderer_set_orientation(reinterpret_cast<PixbufRenderer *>(imd->pr), orientation);
 680                 }
 681 }
 682
 683 void image_set_desaturate(ImageWindow *imd, gboolean desaturate)
 684 {
 685         imd->desaturate = desaturate;
 686         if (imd->cm || imd->desaturate || imd->overunderexposed)
 687                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), image_post_process_tile_color_cb, imd, (imd->cm != nullptr) );
 688         else
 689                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), nullptr, nullptr, TRUE);
 690         pixbuf_renderer_set_orientation(reinterpret_cast<PixbufRenderer *>(imd->pr), imd->orientation);
 691 }
 692
 693 gboolean image_get_desaturate(ImageWindow *imd)
 694 {
 695         return imd->desaturate;
 696 }
 697
 698 void image_set_overunderexposed(ImageWindow *imd, gboolean overunderexposed)
 699 {
 700         imd->overunderexposed = overunderexposed;
 701         if (imd->cm || imd->desaturate || imd->overunderexposed)
 702                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), image_post_process_tile_color_cb, imd, (imd->cm != nullptr) );
 703         else
 704                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), nullptr, nullptr, TRUE);
 705         pixbuf_renderer_set_orientation(reinterpret_cast<PixbufRenderer *>(imd->pr), imd->orientation);
 706 }
 707
 708 void image_set_ignore_alpha(ImageWindow *imd, gboolean ignore_alpha)
 709 {
 710    pixbuf_renderer_set_ignore_alpha(reinterpret_cast<PixbufRenderer *>(imd->pr), ignore_alpha);
 711 }
 712
 713 /*
 714  *-------------------------------------------------------------------
 715  * read ahead (prebuffer)
 716  *-------------------------------------------------------------------
 717  */
 718
 719 static void image_read_ahead_cancel(ImageWindow *imd)
 720 {
 721         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 722
 723         image_loader_free(imd->read_ahead_il);
 724         imd->read_ahead_il = nullptr;
 725
 726         file_data_unref(imd->read_ahead_fd);
 727         imd->read_ahead_fd = nullptr;
 728 }
 729
 730 static void image_read_ahead_done_cb(ImageLoader *UNUSED(il), gpointer data)
 731 {
 732         auto imd = static_cast<ImageWindow *>(data);
 733
 734         if (!imd->read_ahead_fd || !imd->read_ahead_il) return;
 735
 736         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 737
 738         if (!imd->read_ahead_fd->pixbuf)
 739                 {
 740                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 741                 if (imd->read_ahead_fd->pixbuf)
 742                         {
 743                         g_object_ref(imd->read_ahead_fd->pixbuf);
 744                         image_cache_set(imd, imd->read_ahead_fd);
 745                         }
 746                 }
 747         image_loader_free(imd->read_ahead_il);
 748         imd->read_ahead_il = nullptr;
 749
 750         image_complete_util(imd, TRUE);
 751 }
 752
 753 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 754 {
 755         /* we even treat errors as success, maybe at least some of the file was ok */
 756         image_read_ahead_done_cb(il, data);
 757 }
 758
 759 static void image_read_ahead_start(ImageWindow *imd)
 760 {
 761         /* already started ? */
 762         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 763
 764         /* still loading ?, do later */
 765         if (imd->il /*|| imd->cm*/) return;
 766
 767         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 768
 769         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 770
 771         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 772
 773         g_signal_connect(G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 774         g_signal_connect(G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 775
 776         if (!image_loader_start(imd->read_ahead_il))
 777                 {
 778                 image_read_ahead_cancel(imd);
 779                 image_complete_util(imd, TRUE);
 780                 }
 781 }
 782
 783 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 784 {
 785         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 786
 787         image_read_ahead_cancel(imd);
 788
 789         imd->read_ahead_fd = file_data_ref(fd);
 790
 791         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 792
 793         image_read_ahead_start(imd);
 794 }
 795
 796 /*
 797  *-------------------------------------------------------------------
 798  * post buffering
 799  *-------------------------------------------------------------------
 800  */
 801
 802 static void image_cache_release_cb(FileData *fd)
 803 {
 804         g_object_unref(fd->pixbuf);
 805         fd->pixbuf = nullptr;
 806 }
 807
 808 static FileCacheData *image_get_cache()
 809 {
 810         static FileCacheData *cache = nullptr;
 811         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 812         file_cache_set_max_size(cache, static_cast<gulong>(options->image.image_cache_max) * 1048576); /* update from options */
 813         return cache;
 814 }
 815
 816 static void image_cache_set(ImageWindow *UNUSED(imd), FileData *fd)
 817 {
 818         g_assert(fd->pixbuf);
 819
 820         file_cache_put(image_get_cache(), fd, static_cast<gulong>(gdk_pixbuf_get_rowstride(fd->pixbuf)) * static_cast<gulong>(gdk_pixbuf_get_height(fd->pixbuf)));
 821         file_data_send_notification(fd, NOTIFY_PIXBUF); /* to update histogram */
 822 }
 823
 824 static gint image_cache_get(ImageWindow *imd)
 825 {
 826         gint success;
 827
 828         success = file_cache_get(image_get_cache(), imd->image_fd);
 829         if (success)
 830                 {
 831                 g_assert(imd->image_fd->pixbuf);
 832                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 833                 }
 834
 835         return success;
 836 }
 837
 838 /*
 839  *-------------------------------------------------------------------
 840  * loading
 841  *-------------------------------------------------------------------
 842  */
 843
 844 static void image_load_pixbuf_ready(ImageWindow *imd)
 845 {
 846         if (image_get_pixbuf(imd) || !imd->il) return;
 847
 848         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 849 }
 850
 851 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 852 {
 853         auto imd = static_cast<ImageWindow *>(data);
 854         PixbufRenderer *pr;
 855
 856         pr = reinterpret_cast<PixbufRenderer *>(imd->pr);
 857
 858         if (imd->delay_flip &&
 859             pr->pixbuf != image_loader_get_pixbuf(il))
 860                 {
 861                 return;
 862                 }
 863
 864         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 865
 866         pixbuf_renderer_area_changed(pr, x, y, w, h);
 867 }
 868
 869 static void image_load_done_cb(ImageLoader *UNUSED(il), gpointer data)
 870 {
 871         auto imd = static_cast<ImageWindow *>(data);
 872
 873         DEBUG_1("%s image done", get_exec_time());
 874
 875         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 876                 {
 877                 imd->image_fd->pixbuf = static_cast<GdkPixbuf*>(g_object_ref(image_loader_get_pixbuf(imd->il)));
 878                 image_cache_set(imd, imd->image_fd);
 879                 }
 880         /* call the callback triggered by image_state after fd->pixbuf is set */
 881         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 882         image_state_unset(imd, IMAGE_STATE_LOADING);
 883
 884         if (!image_loader_get_pixbuf(imd->il))
 885                 {
 886                 GdkPixbuf *pixbuf;
 887
 888                 switch (imd->image_fd->format_class)
 889                         {
 890                         case FORMAT_CLASS_UNKNOWN:
 891                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_UNKNOWN);
 892                                 break;
 893                         case FORMAT_CLASS_META:
 894                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_METADATA);
 895                                 break;
 896                         case FORMAT_CLASS_VIDEO:
 897                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_VIDEO);
 898                                 break;
 899                         case FORMAT_CLASS_COLLECTION:
 900                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_COLLECTION);
 901                                 break;
 902                         case FORMAT_CLASS_DOCUMENT:
 903                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_ICON_PDF);
 904                                 break;
 905                         case FORMAT_CLASS_ARCHIVE:
 906                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_ARCHIVE);
 907                                 break;
 908                         default:
 909                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 910                         }
 911
 912                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 913                 g_object_unref(pixbuf);
 914
 915                 imd->unknown = TRUE;
 916                 }
 917         else if (imd->delay_flip &&
 918             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 919                 {
 920                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 921                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 922                 }
 923
 924         image_loader_free(imd->il);
 925         imd->il = nullptr;
 926
 927         image_read_ahead_start(imd);
 928 }
 929
 930 static void image_load_size_cb(ImageLoader *UNUSED(il), guint width, guint height, gpointer data)
 931 {
 932         auto imd = static_cast<ImageWindow *>(data);
 933
 934         DEBUG_1("image_load_size_cb: %dx%d", width, height);
 935         pixbuf_renderer_set_size_early(reinterpret_cast<PixbufRenderer *>(imd->pr), width, height);
 936 }
 937
 938 static void image_load_error_cb(ImageLoader *il, gpointer data)
 939 {
 940         DEBUG_1("%s image error", get_exec_time());
 941
 942         /* even on error handle it like it was done,
 943          * since we have a pixbuf with _something_ */
 944
 945         image_load_done_cb(il, data);
 946 }
 947
 948 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
 949 {
 950         g_assert(imd->il);
 951         if (override_old_signals)
 952                 {
 953                 /* override the old signals */
 954                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, nullptr, nullptr, imd);
 955                 }
 956
 957         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 958         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 959         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 960         g_signal_connect(G_OBJECT(imd->il), "size_prepared", (GCallback)image_load_size_cb, imd);
 961 }
 962
 963 /* this read ahead is located here merely for the callbacks, above */
 964
 965 static gboolean image_read_ahead_check(ImageWindow *imd)
 966 {
 967         if (!imd->read_ahead_fd) return FALSE;
 968         if (imd->il) return FALSE;
 969
 970         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 971                 {
 972                 image_read_ahead_cancel(imd);
 973                 return FALSE;
 974                 }
 975
 976         if (imd->read_ahead_il)
 977                 {
 978                 imd->il = imd->read_ahead_il;
 979                 imd->read_ahead_il = nullptr;
 980
 981                 image_load_set_signals(imd, TRUE);
 982
 983                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 984                 image_state_set(imd, IMAGE_STATE_LOADING);
 985
 986                 if (!imd->delay_flip)
 987                         {
 988                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 989                         }
 990
 991                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 992
 993                 file_data_unref(imd->read_ahead_fd);
 994                 imd->read_ahead_fd = nullptr;
 995                 return TRUE;
 996                 }
 997         else if (imd->read_ahead_fd->pixbuf)
 998                 {
 999                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
1000
1001                 file_data_unref(imd->read_ahead_fd);
1002                 imd->read_ahead_fd = nullptr;
1003
1004                 return TRUE;
1005                 }
1006
1007         image_read_ahead_cancel(imd);
1008         return FALSE;
1009 }
1010
1011 static gboolean image_load_begin(ImageWindow *imd, FileData *fd)
1012 {
1013         DEBUG_1("%s image begin", get_exec_time());
1014
1015         if (imd->il) return FALSE;
1016
1017         imd->completed = FALSE;
1018         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
1019
1020         if (image_cache_get(imd))
1021                 {
1022                 DEBUG_1("from cache: %s", imd->image_fd->path);
1023                 return TRUE;
1024                 }
1025
1026         if (image_read_ahead_check(imd))
1027                 {
1028                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
1029                 return TRUE;
1030                 }
1031
1032         if (!imd->delay_flip && image_get_pixbuf(imd))
1033                 {
1034                 PixbufRenderer *pr;
1035
1036                 pr = PIXBUF_RENDERER(imd->pr);
1037                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1038                 pr->pixbuf = nullptr;
1039                 }
1040
1041         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
1042
1043         imd->il = image_loader_new(fd);
1044
1045         image_load_set_signals(imd, FALSE);
1046
1047         if (!image_loader_start(imd->il))
1048                 {
1049                 DEBUG_1("image start error");
1050
1051                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
1052
1053                 image_loader_free(imd->il);
1054                 imd->il = nullptr;
1055
1056                 image_complete_util(imd, FALSE);
1057
1058                 return FALSE;
1059                 }
1060
1061         image_state_set(imd, IMAGE_STATE_LOADING);
1062
1063 /*
1064         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
1065                 {
1066                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
1067                 }
1068 */
1069         return TRUE;
1070 }
1071
1072 static void image_reset(ImageWindow *imd)
1073 {
1074         /* stops anything currently being done */
1075
1076         DEBUG_1("%s image reset", get_exec_time());
1077
1078         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
1079
1080         image_loader_free(imd->il);
1081         imd->il = nullptr;
1082
1083         color_man_free(static_cast<ColorMan *>(imd->cm));
1084         imd->cm = nullptr;
1085
1086         imd->delay_alter_type = ALTER_NONE;
1087
1088         image_state_set(imd, IMAGE_STATE_NONE);
1089 }
1090
1091 /*
1092  *-------------------------------------------------------------------
1093  * image changer
1094  *-------------------------------------------------------------------
1095  */
1096
1097 static void image_change_complete(ImageWindow *imd, gdouble zoom)
1098 {
1099         image_reset(imd);
1100         imd->unknown = TRUE;
1101
1102         /** @FIXME Might be improved when the wepb animation changes happen */
1103         g_object_set(G_OBJECT(imd->pr), "zoom_2pass", options->image.zoom_2pass, NULL);
1104         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality, NULL);
1105
1106         if (!imd->image_fd)
1107                 {
1108                 image_change_pixbuf(imd, nullptr, zoom, FALSE);
1109                 }
1110         else
1111                 {
1112
1113                 if (is_readable_file(imd->image_fd->path))
1114                         {
1115                         PixbufRenderer *pr;
1116
1117                         pr = PIXBUF_RENDERER(imd->pr);
1118                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
1119
1120                         /* Disable 2-pass for GIFs. Animated GIFs can flicker when enabled
1121                          * Reduce quality to worst but fastest to avoid dropped frames */
1122                         if (g_ascii_strcasecmp(imd->image_fd->extension, ".GIF") == 0)
1123                                 {
1124                                 g_object_set(G_OBJECT(imd->pr), "zoom_2pass", FALSE, NULL);
1125                                 g_object_set(G_OBJECT(imd->pr), "zoom_quality", GDK_INTERP_NEAREST, NULL);
1126                                 }
1127
1128
1129                         if (image_load_begin(imd, imd->image_fd))
1130                                 {
1131                                 imd->unknown = FALSE;
1132                                 }
1133                         }
1134
1135                 if (imd->unknown == TRUE)
1136                         {
1137                         GdkPixbuf *pixbuf;
1138
1139                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
1140                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
1141                         g_object_unref(pixbuf);
1142                         }
1143                 }
1144
1145         image_update_util(imd);
1146 }
1147
1148 static void image_change_real(ImageWindow *imd, FileData *fd,
1149                               CollectionData *cd, CollectInfo *info, gdouble zoom)
1150 {
1151
1152         imd->collection = cd;
1153         imd->collection_info = info;
1154
1155         if (imd->auto_refresh && imd->image_fd)
1156                 file_data_unregister_real_time_monitor(imd->image_fd);
1157
1158         file_data_unref(imd->image_fd);
1159         imd->image_fd = file_data_ref(fd);
1160
1161
1162         image_change_complete(imd, zoom);
1163
1164         image_update_title(imd);
1165         image_state_set(imd, IMAGE_STATE_IMAGE);
1166
1167         if (imd->auto_refresh && imd->image_fd)
1168                 file_data_register_real_time_monitor(imd->image_fd);
1169 }
1170
1171 /*
1172  *-------------------------------------------------------------------
1173  * focus stuff
1174  *-------------------------------------------------------------------
1175  */
1176
1177 static gboolean image_focus_in_cb(GtkWidget *UNUSED(widget), GdkEventFocus *UNUSED(event), gpointer data)
1178 {
1179         auto imd = static_cast<ImageWindow *>(data);
1180
1181         if (imd->func_focus_in)
1182                 {
1183                 imd->func_focus_in(imd, imd->data_focus_in);
1184                 }
1185
1186         return TRUE;
1187 }
1188
1189 static gboolean image_scroll_cb(GtkWidget *UNUSED(widget), GdkEventScroll *event, gpointer data)
1190 {
1191         auto imd = static_cast<ImageWindow *>(data);
1192         gboolean in_lw = FALSE;
1193         gint i = 0;
1194         LayoutWindow *lw = nullptr;
1195
1196         if (imd->func_scroll && event && event->type == GDK_SCROLL)
1197                 {
1198                 layout_valid(&lw);
1199                 /* check if the image is in a layout window */
1200                 for (i = 0; i < MAX_SPLIT_IMAGES; i++)
1201                         {
1202                         if (imd == lw->split_images[i])
1203                                 {
1204                                 in_lw = TRUE;
1205                                 break;
1206                                 }
1207                         }
1208
1209                 if (in_lw)
1210                         {
1211                         if (lw->options.split_pane_sync)
1212                                 {
1213                                 for (i = 0; i < MAX_SPLIT_IMAGES; i++)
1214                                         {
1215                                         if (lw->split_images[i])
1216                                                 {
1217                                                 layout_image_activate(lw, i, FALSE);
1218                                                 imd->func_scroll(lw->split_images[i], event, lw->split_images[i]->data_scroll);
1219                                                 }
1220                                         }
1221                                 }
1222                         else
1223                                 {
1224                                 imd->func_scroll(imd, event, imd->data_scroll);
1225                                 }
1226                         return TRUE;
1227                         }
1228                 else
1229                         {
1230                         imd->func_scroll(imd, event, imd->data_scroll);
1231                         return TRUE;
1232                         }
1233                 }
1234
1235         return FALSE;
1236 }
1237
1238 /*
1239  *-------------------------------------------------------------------
1240  * public interface
1241  *-------------------------------------------------------------------
1242  */
1243
1244 void image_attach_window(ImageWindow *imd, GtkWidget *window,
1245                          const gchar *title, const gchar *title_right, gboolean show_zoom)
1246 {
1247         LayoutWindow *lw;
1248
1249         imd->top_window = window;
1250         g_free(imd->title);
1251         imd->title = g_strdup(title);
1252         g_free(imd->title_right);
1253         imd->title_right = g_strdup(title_right);
1254         imd->title_show_zoom = show_zoom;
1255
1256         lw = layout_find_by_image(imd);
1257
1258         if (!(options->image.fit_window_to_image && lw && (lw->options.tools_float || lw->options.tools_hidden))) window = nullptr;
1259
1260         pixbuf_renderer_set_parent(reinterpret_cast<PixbufRenderer *>(imd->pr), reinterpret_cast<GtkWindow *>(window));
1261
1262         image_update_title(imd);
1263 }
1264
1265 void image_set_update_func(ImageWindow *imd,
1266                            void (*func)(ImageWindow *imd, gpointer data),
1267                            gpointer data)
1268 {
1269         imd->func_update = func;
1270         imd->data_update = data;
1271 }
1272
1273 void image_set_complete_func(ImageWindow *imd,
1274                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
1275                              gpointer data)
1276 {
1277         imd->func_complete = func;
1278         imd->data_complete = data;
1279 }
1280
1281 void image_set_state_func(ImageWindow *imd,
1282                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
1283                         gpointer data)
1284 {
1285         imd->func_state = func;
1286         imd->data_state = data;
1287 }
1288
1289
1290 void image_set_button_func(ImageWindow *imd,
1291                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
1292                            gpointer data)
1293 {
1294         imd->func_button = func;
1295         imd->data_button = data;
1296 }
1297
1298 void image_set_drag_func(ImageWindow *imd,
1299                            void (*func)(ImageWindow *, GdkEventMotion *event, gdouble dx, gdouble dy, gpointer),
1300                            gpointer data)
1301 {
1302         imd->func_drag = func;
1303         imd->data_drag = data;
1304 }
1305
1306 void image_set_scroll_func(ImageWindow *imd,
1307                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
1308                            gpointer data)
1309 {
1310         imd->func_scroll = func;
1311         imd->data_scroll = data;
1312 }
1313
1314 #pragma GCC diagnostic push
1315 #pragma GCC diagnostic ignored "-Wunused-function"
1316 void image_set_scroll_notify_func_unused(ImageWindow *imd,
1317                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
1318                                   gpointer data)
1319 {
1320         imd->func_scroll_notify = func;
1321         imd->data_scroll_notify = data;
1322 }
1323 #pragma GCC diagnostic pop
1324
1325 void image_set_focus_in_func(ImageWindow *imd,
1326                            void (*func)(ImageWindow *, gpointer),
1327                            gpointer data)
1328 {
1329         imd->func_focus_in = func;
1330         imd->data_focus_in = data;
1331 }
1332
1333 /* path, name */
1334
1335 const gchar *image_get_path(ImageWindow *imd)
1336 {
1337         if (imd->image_fd == nullptr) return nullptr;
1338         return imd->image_fd->path;
1339 }
1340
1341 const gchar *image_get_name(ImageWindow *imd)
1342 {
1343         if (imd->image_fd == nullptr) return nullptr;
1344         return imd->image_fd->name;
1345 }
1346
1347 FileData *image_get_fd(ImageWindow *imd)
1348 {
1349         return imd->image_fd;
1350 }
1351
1352 /* merely changes path string, does not change the image! */
1353 void image_set_fd(ImageWindow *imd, FileData *fd)
1354 {
1355         if (imd->auto_refresh && imd->image_fd)
1356                 file_data_unregister_real_time_monitor(imd->image_fd);
1357
1358         file_data_unref(imd->image_fd);
1359         imd->image_fd = file_data_ref(fd);
1360
1361         image_update_title(imd);
1362         image_state_set(imd, IMAGE_STATE_IMAGE);
1363
1364         if (imd->auto_refresh && imd->image_fd)
1365                 file_data_register_real_time_monitor(imd->image_fd);
1366 }
1367
1368 /* load a new image */
1369
1370 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1371 {
1372         if (imd->image_fd == fd) return;
1373
1374         image_change_real(imd, fd, nullptr, nullptr, zoom);
1375 }
1376
1377 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1378 {
1379         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1380 }
1381
1382 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1383 {
1384         return pixbuf_renderer_get_pixbuf(reinterpret_cast<PixbufRenderer *>(imd->pr));
1385 }
1386
1387 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1388 {
1389         LayoutWindow *lw;
1390         StereoPixbufData stereo_data = STEREO_PIXBUF_DEFAULT;
1391         /* read_exif and similar functions can actually notice that the file has changed and trigger
1392            a notification that removes the pixbuf from cache and unrefs it. Therefore we must ref it
1393            here before it is taken over by the renderer. */
1394         if (pixbuf) g_object_ref(pixbuf);
1395
1396         imd->orientation = EXIF_ORIENTATION_TOP_LEFT;
1397         if (imd->image_fd)
1398                 {
1399                 if (imd->image_fd->user_orientation)
1400                         {
1401                         imd->orientation = imd->image_fd->user_orientation;
1402                         }
1403                 else if (options->image.exif_rotate_enable)
1404                         {
1405                         if (g_strcmp0(imd->image_fd->format_name, "heif") == 0)
1406                                 {
1407                                 imd->orientation = EXIF_ORIENTATION_TOP_LEFT;
1408                                 imd->image_fd->exif_orientation = imd->orientation;
1409                                 }
1410                         else
1411                                 {
1412                                 imd->orientation = metadata_read_int(imd->image_fd, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
1413                                 imd->image_fd->exif_orientation = imd->orientation;
1414                                 }
1415                         }
1416                 }
1417
1418         if (pixbuf)
1419                 {
1420                 stereo_data = static_cast<StereoPixbufData>(imd->user_stereo);
1421                 if (stereo_data == STEREO_PIXBUF_DEFAULT)
1422                         {
1423                         stereo_data = static_cast<StereoPixbufData>(GPOINTER_TO_INT(g_object_get_data(G_OBJECT(pixbuf), "stereo_data")));
1424                         }
1425                 }
1426
1427         pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), nullptr, nullptr, FALSE);
1428         if (imd->cm)
1429                 {
1430                 color_man_free(static_cast<ColorMan *>(imd->cm));
1431                 imd->cm = nullptr;
1432                 }
1433
1434         if (lazy)
1435                 {
1436                 pixbuf_renderer_set_pixbuf_lazy(reinterpret_cast<PixbufRenderer *>(imd->pr), pixbuf, zoom, imd->orientation, stereo_data);
1437                 }
1438         else
1439                 {
1440                 pixbuf_renderer_set_pixbuf(reinterpret_cast<PixbufRenderer *>(imd->pr), pixbuf, zoom);
1441                 pixbuf_renderer_set_orientation(reinterpret_cast<PixbufRenderer *>(imd->pr), imd->orientation);
1442                 pixbuf_renderer_set_stereo_data(reinterpret_cast<PixbufRenderer *>(imd->pr), stereo_data);
1443                 }
1444
1445         if (pixbuf) g_object_unref(pixbuf);
1446
1447         /* Color correction takes too much time for an animated gif */
1448         lw = layout_find_by_image(imd);
1449         if (imd->color_profile_enable && lw && !lw->animation)
1450                 {
1451                 image_post_process_color(imd, 0, FALSE); /** @todo error handling */
1452                 }
1453
1454         if (imd->cm || imd->desaturate || imd->overunderexposed)
1455                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), image_post_process_tile_color_cb, imd, (imd->cm != nullptr) );
1456
1457         image_state_set(imd, IMAGE_STATE_IMAGE);
1458 }
1459
1460 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1461 {
1462         CollectWindow *cw;
1463
1464         if (!cd || !info || !g_list_find(cd->list, info)) return;
1465
1466         image_change_real(imd, info->fd, cd, info, zoom);
1467         cw = collection_window_find(cd);
1468         if (cw)
1469                 {
1470                 collection_table_set_focus(cw->table, info);
1471                 collection_table_unselect_all(cw->table);
1472                 collection_table_select(cw->table,info);
1473                 }
1474
1475         if (info->fd)
1476                 {
1477                 image_chain_append_end(info->fd->path);
1478                 }
1479 }
1480
1481 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1482 {
1483         if (collection_to_number(imd->collection) >= 0)
1484                 {
1485                 if (g_list_find(imd->collection->list, imd->collection_info) != nullptr)
1486                         {
1487                         if (info) *info = imd->collection_info;
1488                         }
1489                 else
1490                         {
1491                         if (info) *info = nullptr;
1492                         }
1493                 return imd->collection;
1494                 }
1495
1496         if (info) *info = nullptr;
1497         return nullptr;
1498 }
1499
1500 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1501 {
1502         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (gpointer)image_read_ahead_error_cb, old_data))
1503                 g_signal_connect(G_OBJECT(il), "error", G_CALLBACK(image_read_ahead_error_cb), data);
1504
1505         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (gpointer)image_read_ahead_done_cb, old_data))
1506                 g_signal_connect(G_OBJECT(il), "done", G_CALLBACK(image_read_ahead_done_cb), data);
1507 }
1508
1509 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1510 {
1511         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (gpointer)image_load_area_cb, old_data))
1512                 g_signal_connect(G_OBJECT(il), "area_ready", G_CALLBACK(image_load_area_cb), data);
1513
1514         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (gpointer)image_load_error_cb, old_data))
1515                 g_signal_connect(G_OBJECT(il), "error", G_CALLBACK(image_load_error_cb), data);
1516
1517         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (gpointer)image_load_done_cb, old_data))
1518                 g_signal_connect(G_OBJECT(il), "done", G_CALLBACK(image_load_done_cb), data);
1519 }
1520
1521 /* this is more like a move function
1522  * it moves most data from source to imd
1523  */
1524 void image_move_from_image(ImageWindow *imd, ImageWindow *source)
1525 {
1526         if (imd == source) return;
1527
1528         imd->unknown = source->unknown;
1529
1530         imd->collection = source->collection;
1531         imd->collection_info = source->collection_info;
1532
1533         image_loader_free(imd->il);
1534         imd->il = nullptr;
1535
1536         image_set_fd(imd, image_get_fd(source));
1537
1538
1539         if (source->il)
1540                 {
1541                 imd->il = source->il;
1542                 source->il = nullptr;
1543
1544                 image_loader_sync_data(imd->il, source, imd);
1545
1546                 imd->delay_alter_type = source->delay_alter_type;
1547                 source->delay_alter_type = ALTER_NONE;
1548                 }
1549
1550         imd->color_profile_enable = source->color_profile_enable;
1551         imd->color_profile_input = source->color_profile_input;
1552         imd->color_profile_use_image = source->color_profile_use_image;
1553         color_man_free(static_cast<ColorMan *>(imd->cm));
1554         imd->cm = nullptr;
1555         if (source->cm)
1556                 {
1557                 ColorMan *cm;
1558
1559                 imd->cm = source->cm;
1560                 source->cm = nullptr;
1561
1562                 cm = static_cast<ColorMan *>(imd->cm);
1563                 cm->imd = imd;
1564                 cm->func_done_data = imd;
1565                 }
1566
1567         file_data_unref(imd->read_ahead_fd);
1568         source->read_ahead_fd = nullptr;
1569
1570         imd->orientation = source->orientation;
1571         imd->desaturate = source->desaturate;
1572
1573         imd->user_stereo = source->user_stereo;
1574
1575         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1576
1577         if (imd->cm || imd->desaturate || imd->overunderexposed)
1578                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), image_post_process_tile_color_cb, imd, (imd->cm != nullptr) );
1579         else
1580                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), nullptr, nullptr, TRUE);
1581
1582 }
1583
1584 /* this is  a copy function
1585  * source stays unchanged
1586  */
1587 void image_copy_from_image(ImageWindow *imd, ImageWindow *source)
1588 {
1589         if (imd == source) return;
1590
1591         imd->unknown = source->unknown;
1592
1593         imd->collection = source->collection;
1594         imd->collection_info = source->collection_info;
1595
1596         image_loader_free(imd->il);
1597         imd->il = nullptr;
1598
1599         image_set_fd(imd, image_get_fd(source));
1600
1601
1602         imd->color_profile_enable = source->color_profile_enable;
1603         imd->color_profile_input = source->color_profile_input;
1604         imd->color_profile_use_image = source->color_profile_use_image;
1605         color_man_free(static_cast<ColorMan *>(imd->cm));
1606         imd->cm = nullptr;
1607         if (source->cm)
1608                 {
1609                 ColorMan *cm;
1610
1611                 imd->cm = source->cm;
1612                 source->cm = nullptr;
1613
1614                 cm = static_cast<ColorMan *>(imd->cm);
1615                 cm->imd = imd;
1616                 cm->func_done_data = imd;
1617                 }
1618
1619         image_loader_free(imd->read_ahead_il);
1620         imd->read_ahead_il = source->read_ahead_il;
1621         source->read_ahead_il = nullptr;
1622         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1623
1624         file_data_unref(imd->read_ahead_fd);
1625         imd->read_ahead_fd = source->read_ahead_fd;
1626         source->read_ahead_fd = nullptr;
1627
1628         imd->completed = source->completed;
1629         imd->state = source->state;
1630         source->state = IMAGE_STATE_NONE;
1631
1632         imd->orientation = source->orientation;
1633         imd->desaturate = source->desaturate;
1634
1635         imd->user_stereo = source->user_stereo;
1636
1637         pixbuf_renderer_copy(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1638
1639         if (imd->cm || imd->desaturate || imd->overunderexposed)
1640                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), image_post_process_tile_color_cb, imd, (imd->cm != nullptr) );
1641         else
1642                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), nullptr, nullptr, TRUE);
1643
1644 }
1645
1646
1647 /* manipulation */
1648
1649 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1650 {
1651         pixbuf_renderer_area_changed(reinterpret_cast<PixbufRenderer *>(imd->pr), x, y, width, height);
1652 }
1653
1654 void image_reload(ImageWindow *imd)
1655 {
1656         if (pixbuf_renderer_get_tiles(reinterpret_cast<PixbufRenderer *>(imd->pr))) return;
1657
1658         image_change_complete(imd, image_zoom_get(imd));
1659 }
1660
1661 void image_scroll(ImageWindow *imd, gint x, gint y)
1662 {
1663         pixbuf_renderer_scroll(reinterpret_cast<PixbufRenderer *>(imd->pr), x, y);
1664 }
1665
1666 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1667                            gdouble x_align, gdouble y_align)
1668 {
1669         pixbuf_renderer_scroll_to_point(reinterpret_cast<PixbufRenderer *>(imd->pr), x, y, x_align, y_align);
1670 }
1671
1672 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1673 {
1674         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1675 }
1676
1677 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1678 {
1679         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1680 }
1681
1682 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1683 {
1684         pixbuf_renderer_zoom_adjust(reinterpret_cast<PixbufRenderer *>(imd->pr), increment);
1685 }
1686
1687 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1688 {
1689         pixbuf_renderer_zoom_adjust_at_point(reinterpret_cast<PixbufRenderer *>(imd->pr), increment, x, y);
1690 }
1691
1692 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1693 {
1694         pixbuf_renderer_zoom_set_limits(reinterpret_cast<PixbufRenderer *>(imd->pr), min, max);
1695 }
1696
1697 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1698 {
1699         pixbuf_renderer_zoom_set(reinterpret_cast<PixbufRenderer *>(imd->pr), zoom);
1700 }
1701
1702 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1703 {
1704         PixbufRenderer *pr;
1705         gdouble zoom;
1706         gint width, height;
1707
1708         pr = reinterpret_cast<PixbufRenderer *>(imd->pr);
1709
1710         if (!pixbuf_renderer_get_pixbuf(pr) ||
1711             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1712
1713         if (vertical)
1714                 {
1715                 zoom = static_cast<gdouble>(pr->viewport_height) / height;
1716                 }
1717         else
1718                 {
1719                 zoom = static_cast<gdouble>(pr->viewport_width) / width;
1720                 }
1721
1722         if (zoom < 1.0)
1723                 {
1724                 zoom = 0.0 - 1.0 / zoom;
1725                 }
1726
1727         pixbuf_renderer_zoom_set(pr, zoom);
1728 }
1729
1730 gdouble image_zoom_get(ImageWindow *imd)
1731 {
1732         return pixbuf_renderer_zoom_get(reinterpret_cast<PixbufRenderer *>(imd->pr));
1733 }
1734
1735 gdouble image_zoom_get_real(ImageWindow *imd)
1736 {
1737         return pixbuf_renderer_zoom_get_scale(reinterpret_cast<PixbufRenderer *>(imd->pr));
1738 }
1739
1740 gchar *image_zoom_get_as_text(ImageWindow *imd)
1741 {
1742         gdouble zoom;
1743         gdouble scale;
1744         gdouble l = 1.0;
1745         gdouble r = 1.0;
1746         gint pl = 0;
1747         gint pr = 0;
1748         const gchar *approx = " ";
1749
1750         zoom = image_zoom_get(imd);
1751         scale = image_zoom_get_real(imd);
1752
1753         if (zoom > 0.0)
1754                 {
1755                 l = zoom;
1756                 }
1757         else if (zoom < 0.0)
1758                 {
1759                 r = 0.0 - zoom;
1760                 }
1761         else if (zoom == 0.0 && scale != 0.0)
1762                 {
1763                 if (scale >= 1.0)
1764                         {
1765                         l = scale;
1766                         }
1767                 else
1768                         {
1769                         r = 1.0 / scale;
1770                         }
1771                 approx = "~";
1772                 }
1773
1774         if (rint(l) != l) pl = 2;
1775         if (rint(r) != r) pr = 2;
1776
1777         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1778 }
1779
1780 gdouble image_zoom_get_default(ImageWindow *imd)
1781 {
1782         gdouble zoom = 1.0;
1783
1784         switch (options->image.zoom_mode)
1785         {
1786         case ZOOM_RESET_ORIGINAL:
1787                 break;
1788         case ZOOM_RESET_FIT_WINDOW:
1789                 zoom = 0.0;
1790                 break;
1791         case ZOOM_RESET_NONE:
1792                 if (imd) zoom = image_zoom_get(imd);
1793                 break;
1794         }
1795
1796         return zoom;
1797 }
1798
1799 /* stereo */
1800
1801 #pragma GCC diagnostic push
1802 #pragma GCC diagnostic ignored "-Wunused-function"
1803 gint image_stereo_get_unused(ImageWindow *imd)
1804 {
1805         return pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1806 }
1807 #pragma GCC diagnostic pop
1808
1809 void image_stereo_set(ImageWindow *imd, gint stereo_mode)
1810 {
1811         DEBUG_1("Setting stereo mode %04x for imd %p", stereo_mode, (void *)imd);
1812         pixbuf_renderer_stereo_set(reinterpret_cast<PixbufRenderer *>(imd->pr), stereo_mode);
1813 }
1814
1815 #pragma GCC diagnostic push
1816 #pragma GCC diagnostic ignored "-Wunused-function"
1817 void image_stereo_swap_unused(ImageWindow *imd)
1818 {
1819         gint stereo_mode = pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1820         stereo_mode ^= PR_STEREO_SWAP;
1821         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1822 }
1823 #pragma GCC diagnostic pop
1824
1825 StereoPixbufData image_stereo_pixbuf_get(ImageWindow *imd)
1826 {
1827         return static_cast<StereoPixbufData>(imd->user_stereo);
1828 }
1829
1830 void image_stereo_pixbuf_set(ImageWindow *imd, StereoPixbufData stereo_mode)
1831 {
1832         imd->user_stereo = stereo_mode;
1833         image_reload(imd);
1834 }
1835
1836 /* read ahead */
1837
1838 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1839 {
1840         if (pixbuf_renderer_get_tiles(reinterpret_cast<PixbufRenderer *>(imd->pr))) return;
1841
1842         if (fd)
1843                 {
1844                 if (!file_cache_get(image_get_cache(), fd))
1845                         {
1846                         image_read_ahead_set(imd, fd);
1847                         }
1848                 }
1849         else
1850                 {
1851                 image_read_ahead_cancel(imd);
1852                 }
1853 }
1854
1855 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1856 {
1857         auto imd = static_cast<ImageWindow *>(data);
1858
1859         if (!imd || !image_get_pixbuf(imd) ||
1860             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1861             !imd->image_fd || /* nothing to reload */
1862             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1863             ) return;
1864
1865         if ((type & NOTIFY_REREAD) && fd == imd->image_fd)
1866                 {
1867                 /* there is no need to reload on NOTIFY_CHANGE,
1868                    modified files should be detacted anyway and NOTIFY_REREAD should be received
1869                    or they are removed from the filelist completely on "move" and "delete"
1870                 */
1871                 DEBUG_1("Notify image: %s %04x", fd->path, type);
1872                 image_reload(imd);
1873                 }
1874 }
1875
1876 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1877 {
1878         if (!enable && imd->auto_refresh && imd->image_fd)
1879                 file_data_unregister_real_time_monitor(imd->image_fd);
1880
1881         if (enable && !imd->auto_refresh && imd->image_fd)
1882                 file_data_register_real_time_monitor(imd->image_fd);
1883
1884         imd->auto_refresh = enable;
1885 }
1886
1887 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1888 {
1889         imd->top_window_sync = allow_sync;
1890
1891         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1892 }
1893
1894 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1895 {
1896         pixbuf_renderer_set_color(reinterpret_cast<PixbufRenderer *>(imd->pr), color);
1897 }
1898
1899 void image_background_set_color_from_options(ImageWindow *imd, gboolean fullscreen)
1900 {
1901         GdkColor *color = nullptr;
1902         GdkColor theme_color;
1903         GdkRGBA bg_color;
1904         GtkStyleContext *style_context;
1905         LayoutWindow *lw = nullptr;
1906
1907         if ((options->image.use_custom_border_color && !fullscreen) ||
1908             (options->image.use_custom_border_color_in_fullscreen && fullscreen))
1909                 {
1910                 color = &options->image.border_color;
1911                 }
1912
1913         else
1914                 {
1915                 if (!layout_valid(&lw)) return;
1916
1917                 style_context = gtk_widget_get_style_context(lw->window);
1918                 gtk_style_context_get_background_color(style_context, GTK_STATE_FLAG_NORMAL, &bg_color);
1919
1920                 theme_color.red = bg_color.red * 65535;
1921                 theme_color.green = bg_color.green * 65535;
1922                 theme_color.blue = bg_color.blue * 65535;
1923
1924                 color = &theme_color;
1925                 }
1926
1927         image_background_set_color(imd, color);
1928 }
1929
1930 void image_color_profile_set(ImageWindow *imd,
1931                              gint input_type,
1932                              gboolean use_image)
1933 {
1934         if (!imd) return;
1935
1936         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
1937                 {
1938                 return;
1939                 }
1940
1941         imd->color_profile_input = input_type;
1942         imd->color_profile_use_image = use_image;
1943 }
1944
1945 gboolean image_color_profile_get(ImageWindow *imd,
1946                                  gint *input_type,
1947                                  gboolean *use_image)
1948 {
1949         if (!imd) return FALSE;
1950
1951         if (input_type) *input_type = imd->color_profile_input;
1952         if (use_image) *use_image = imd->color_profile_use_image;
1953
1954         return TRUE;
1955 }
1956
1957 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1958 {
1959         if (!imd) return;
1960
1961         if (imd->color_profile_enable == enable) return;
1962
1963         imd->color_profile_enable = enable;
1964 }
1965
1966 gboolean image_color_profile_get_use(ImageWindow *imd)
1967 {
1968         if (!imd) return FALSE;
1969
1970         return imd->color_profile_enable;
1971 }
1972
1973 gboolean image_color_profile_get_status(ImageWindow *imd, gchar **image_profile, gchar **screen_profile)
1974 {
1975         ColorMan *cm;
1976         if (!imd) return FALSE;
1977
1978         cm = static_cast<ColorMan *>(imd->cm);
1979         if (!cm) return FALSE;
1980         return color_man_get_status(cm, image_profile, screen_profile);
1981
1982 }
1983
1984 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1985 {
1986         if (!imd ||
1987             imd->delay_flip == delay) return;
1988
1989         imd->delay_flip = delay;
1990
1991         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1992
1993         if (!imd->delay_flip && imd->il)
1994                 {
1995                 PixbufRenderer *pr;
1996
1997                 pr = PIXBUF_RENDERER(imd->pr);
1998                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1999                 pr->pixbuf = nullptr;
2000
2001                 image_load_pixbuf_ready(imd);
2002                 }
2003 }
2004
2005 void image_to_root_window(ImageWindow *UNUSED(imd), gboolean UNUSED(scaled))
2006 {
2007 }
2008
2009 void image_select(ImageWindow *imd, gboolean select)
2010 {
2011         if (!imd->has_frame) return;
2012
2013         if (select)
2014                 {
2015                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
2016                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
2017                 }
2018         else
2019                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
2020 }
2021
2022 void image_set_selectable(ImageWindow *imd, gboolean selectable)
2023 {
2024         if (!imd->has_frame) return;
2025
2026         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
2027         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
2028 }
2029
2030 void image_grab_focus(ImageWindow *imd)
2031 {
2032         if (imd->has_frame)
2033                 {
2034                 gtk_widget_grab_focus(imd->frame);
2035                 }
2036         else
2037                 {
2038                 gtk_widget_grab_focus(imd->widget);
2039                 }
2040 }
2041
2042
2043 /*
2044  *-------------------------------------------------------------------
2045  * prefs sync
2046  *-------------------------------------------------------------------
2047  */
2048
2049 static void image_options_set(ImageWindow *imd)
2050 {
2051         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
2052                                         "zoom_2pass", options->image.zoom_2pass,
2053                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
2054                                         "scroll_reset", options->image.scroll_reset_method,
2055                                         "cache_display", options->image.tile_cache_max,
2056                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
2057                                         "window_limit", options->image.limit_window_size,
2058                                         "window_limit_value", options->image.max_window_size,
2059                                         "autofit_limit", options->image.limit_autofit_size,
2060                                         "autofit_limit_value", options->image.max_autofit_size,
2061                                         "enlargement_limit_value", options->image.max_enlargement_size,
2062
2063                                         NULL);
2064
2065         pixbuf_renderer_set_parent(reinterpret_cast<PixbufRenderer *>(imd->pr), reinterpret_cast<GtkWindow *>(imd->top_window));
2066
2067         image_stereo_set(imd, options->stereo.mode);
2068         pixbuf_renderer_stereo_fixed_set(reinterpret_cast<PixbufRenderer *>(imd->pr),
2069                                         options->stereo.fixed_w, options->stereo.fixed_h,
2070                                         options->stereo.fixed_x1, options->stereo.fixed_y1,
2071                                         options->stereo.fixed_x2, options->stereo.fixed_y2);
2072 }
2073
2074 void image_options_sync()
2075 {
2076         GList *work;
2077
2078         work = image_list;
2079         while (work)
2080                 {
2081                 ImageWindow *imd;
2082
2083                 imd = static_cast<ImageWindow *>(work->data);
2084                 work = work->next;
2085
2086                 image_options_set(imd);
2087                 }
2088 }
2089
2090 /*
2091  *-------------------------------------------------------------------
2092  * init / destroy
2093  *-------------------------------------------------------------------
2094  */
2095
2096 static void image_free(ImageWindow *imd)
2097 {
2098         image_list = g_list_remove(image_list, imd);
2099
2100         if (imd->auto_refresh && imd->image_fd)
2101                 file_data_unregister_real_time_monitor(imd->image_fd);
2102
2103         file_data_unregister_notify_func(image_notify_cb, imd);
2104
2105         image_reset(imd);
2106
2107         image_read_ahead_cancel(imd);
2108
2109         file_data_unref(imd->image_fd);
2110         g_free(imd->title);
2111         g_free(imd->title_right);
2112         g_free(imd);
2113 }
2114
2115 static void image_destroy_cb(GtkWidget *UNUSED(widget), gpointer data)
2116 {
2117         auto imd = static_cast<ImageWindow *>(data);
2118         image_free(imd);
2119 }
2120
2121 gboolean selectable_frame_draw_cb(GtkWidget *widget, cairo_t *cr, gpointer UNUSED(data))
2122 {
2123         GtkAllocation allocation;
2124         gtk_widget_get_allocation(widget, &allocation);
2125         gtk_paint_flat_box(gtk_widget_get_style(widget),
2126                            cr,
2127                            gtk_widget_get_state(widget),
2128                            gtk_frame_get_shadow_type(GTK_FRAME(widget)),
2129                            widget,
2130                            nullptr,
2131                            allocation.x + 3, allocation.y + 3,
2132                            allocation.width - 6, allocation.height - 6);
2133
2134         if (gtk_widget_has_focus(widget))
2135                 {
2136                 gtk_paint_focus(gtk_widget_get_style(widget), cr, GTK_STATE_ACTIVE,
2137                                 widget, "image_window",
2138                                 allocation.x, allocation.y,
2139                                 allocation.width - 1, allocation.height - 1);
2140                 }
2141         else
2142                 {
2143                 gtk_paint_shadow(gtk_widget_get_style(widget), cr, GTK_STATE_NORMAL, GTK_SHADOW_IN,
2144                                  widget, "image_window",
2145                                  allocation.x, allocation.y,
2146                                  allocation.width - 1, allocation.height - 1);
2147                 }
2148         return FALSE;
2149 }
2150
2151 void image_set_frame(ImageWindow *imd, gboolean frame)
2152 {
2153         frame = !!frame;
2154
2155         if (frame == imd->has_frame) return;
2156
2157         gtk_widget_hide(imd->pr);
2158
2159         if (frame)
2160                 {
2161                 imd->frame = gtk_frame_new(nullptr);
2162                 DEBUG_NAME(imd->frame);
2163                 g_object_ref(imd->pr);
2164                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
2165                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
2166
2167                 g_object_unref(imd->pr);
2168                 gtk_widget_set_can_focus(imd->frame, TRUE);
2169                 gtk_widget_set_app_paintable(imd->frame, TRUE);
2170
2171                 g_signal_connect(G_OBJECT(imd->frame), "draw",
2172                                  G_CALLBACK(selectable_frame_draw_cb), NULL);
2173                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
2174                                  G_CALLBACK(image_focus_in_cb), imd);
2175
2176                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
2177                 gtk_widget_show(imd->frame);
2178                 }
2179         else
2180                 {
2181                 g_object_ref(imd->pr);
2182                 if (imd->frame)
2183                         {
2184                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
2185                         gtk_widget_destroy(imd->frame);
2186                         imd->frame = nullptr;
2187                         }
2188                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
2189
2190                 g_object_unref(imd->pr);
2191                 }
2192
2193         gtk_widget_show(imd->pr);
2194
2195         imd->has_frame = frame;
2196 }
2197
2198 ImageWindow *image_new(gboolean frame)
2199 {
2200         ImageWindow *imd;
2201
2202         imd = g_new0(ImageWindow, 1);
2203
2204         imd->unknown = TRUE;
2205         imd->has_frame = -1; /* not initialized; for image_set_frame */
2206         imd->delay_alter_type = ALTER_NONE;
2207         imd->state = IMAGE_STATE_NONE;
2208         imd->color_profile_from_image = COLOR_PROFILE_NONE;
2209         imd->orientation = 1;
2210
2211         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
2212         DEBUG_NAME(imd->pr);
2213
2214         image_options_set(imd);
2215
2216         imd->widget = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
2217         DEBUG_NAME(imd->widget);
2218
2219         image_set_frame(imd, frame);
2220
2221         image_set_selectable(imd, 0);
2222
2223         g_signal_connect(G_OBJECT(imd->pr), "clicked",
2224                          G_CALLBACK(image_click_cb), imd);
2225         g_signal_connect(G_OBJECT(imd->pr), "button_press_event",
2226                          G_CALLBACK(image_press_cb), imd);
2227         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
2228                          G_CALLBACK(image_scroll_notify_cb), imd);
2229
2230         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
2231                          G_CALLBACK(image_scroll_cb), imd);
2232
2233         g_signal_connect(G_OBJECT(imd->pr), "destroy",
2234                          G_CALLBACK(image_destroy_cb), imd);
2235
2236         g_signal_connect(G_OBJECT(imd->pr), "zoom",
2237                          G_CALLBACK(image_zoom_cb), imd);
2238         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
2239                          G_CALLBACK(image_render_complete_cb), imd);
2240         g_signal_connect(G_OBJECT(imd->pr), "drag",
2241                          G_CALLBACK(image_drag_cb), imd);
2242
2243         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
2244
2245         image_list = g_list_append(image_list, imd);
2246
2247         return imd;
2248 }
2249
2250 void image_get_rectangle(gint *x1, gint *y1, gint *x2, gint *y2)
2251 {
2252         *x1 = rect_x1;
2253         *y1 = rect_y1;
2254         *x2 = rect_x2;
2255         *y2 = rect_y2;
2256 }
2257
2258 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */