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 //      file_cache_dump(image_get_cache());
 836         return success;
 837 }
 838
 839 /*
 840  *-------------------------------------------------------------------
 841  * loading
 842  *-------------------------------------------------------------------
 843  */
 844
 845 static void image_load_pixbuf_ready(ImageWindow *imd)
 846 {
 847         if (image_get_pixbuf(imd) || !imd->il) return;
 848
 849         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 850 }
 851
 852 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 853 {
 854         auto imd = static_cast<ImageWindow *>(data);
 855         PixbufRenderer *pr;
 856
 857         pr = reinterpret_cast<PixbufRenderer *>(imd->pr);
 858
 859         if (imd->delay_flip &&
 860             pr->pixbuf != image_loader_get_pixbuf(il))
 861                 {
 862                 return;
 863                 }
 864
 865         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 866
 867         pixbuf_renderer_area_changed(pr, x, y, w, h);
 868 }
 869
 870 static void image_load_done_cb(ImageLoader *UNUSED(il), gpointer data)
 871 {
 872         auto imd = static_cast<ImageWindow *>(data);
 873
 874         DEBUG_1("%s image done", get_exec_time());
 875
 876         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 877                 {
 878                 imd->image_fd->pixbuf = static_cast<GdkPixbuf*>(g_object_ref(image_loader_get_pixbuf(imd->il)));
 879                 image_cache_set(imd, imd->image_fd);
 880                 }
 881         /* call the callback triggered by image_state after fd->pixbuf is set */
 882         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 883         image_state_unset(imd, IMAGE_STATE_LOADING);
 884
 885         if (!image_loader_get_pixbuf(imd->il))
 886                 {
 887                 GdkPixbuf *pixbuf;
 888
 889                 switch (imd->image_fd->format_class)
 890                         {
 891                         case FORMAT_CLASS_UNKNOWN:
 892                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_UNKNOWN);
 893                                 break;
 894                         case FORMAT_CLASS_META:
 895                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_METADATA);
 896                                 break;
 897                         case FORMAT_CLASS_VIDEO:
 898                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_VIDEO);
 899                                 break;
 900                         case FORMAT_CLASS_COLLECTION:
 901                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_COLLECTION);
 902                                 break;
 903                         case FORMAT_CLASS_DOCUMENT:
 904                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_ICON_PDF);
 905                                 break;
 906                         case FORMAT_CLASS_ARCHIVE:
 907                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_ARCHIVE);
 908                                 break;
 909                         default:
 910                                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 911                         }
 912
 913                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 914                 g_object_unref(pixbuf);
 915
 916                 imd->unknown = TRUE;
 917                 }
 918         else if (imd->delay_flip &&
 919             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 920                 {
 921                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 922                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 923                 }
 924
 925         image_loader_free(imd->il);
 926         imd->il = nullptr;
 927
 928 //      image_post_process(imd, TRUE);
 929
 930         image_read_ahead_start(imd);
 931 }
 932
 933 static void image_load_size_cb(ImageLoader *UNUSED(il), guint width, guint height, gpointer data)
 934 {
 935         auto imd = static_cast<ImageWindow *>(data);
 936
 937         DEBUG_1("image_load_size_cb: %dx%d", width, height);
 938         pixbuf_renderer_set_size_early(reinterpret_cast<PixbufRenderer *>(imd->pr), width, height);
 939 }
 940
 941 static void image_load_error_cb(ImageLoader *il, gpointer data)
 942 {
 943         DEBUG_1("%s image error", get_exec_time());
 944
 945         /* even on error handle it like it was done,
 946          * since we have a pixbuf with _something_ */
 947
 948         image_load_done_cb(il, data);
 949 }
 950
 951 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
 952 {
 953         g_assert(imd->il);
 954         if (override_old_signals)
 955                 {
 956                 /* override the old signals */
 957                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, nullptr, nullptr, imd);
 958                 }
 959
 960         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 961         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 962         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 963         g_signal_connect(G_OBJECT(imd->il), "size_prepared", (GCallback)image_load_size_cb, imd);
 964 }
 965
 966 /* this read ahead is located here merely for the callbacks, above */
 967
 968 static gboolean image_read_ahead_check(ImageWindow *imd)
 969 {
 970         if (!imd->read_ahead_fd) return FALSE;
 971         if (imd->il) return FALSE;
 972
 973         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 974                 {
 975                 image_read_ahead_cancel(imd);
 976                 return FALSE;
 977                 }
 978
 979         if (imd->read_ahead_il)
 980                 {
 981                 imd->il = imd->read_ahead_il;
 982                 imd->read_ahead_il = nullptr;
 983
 984                 image_load_set_signals(imd, TRUE);
 985
 986                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 987                 image_state_set(imd, IMAGE_STATE_LOADING);
 988
 989                 if (!imd->delay_flip)
 990                         {
 991                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 992                         }
 993
 994                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 995
 996                 file_data_unref(imd->read_ahead_fd);
 997                 imd->read_ahead_fd = nullptr;
 998                 return TRUE;
 999                 }
1000         else if (imd->read_ahead_fd->pixbuf)
1001                 {
1002                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
1003
1004                 file_data_unref(imd->read_ahead_fd);
1005                 imd->read_ahead_fd = nullptr;
1006
1007 //              image_post_process(imd, FALSE);
1008                 return TRUE;
1009                 }
1010
1011         image_read_ahead_cancel(imd);
1012         return FALSE;
1013 }
1014
1015 static gboolean image_load_begin(ImageWindow *imd, FileData *fd)
1016 {
1017         DEBUG_1("%s image begin", get_exec_time());
1018
1019         if (imd->il) return FALSE;
1020
1021         imd->completed = FALSE;
1022         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
1023
1024         if (image_cache_get(imd))
1025                 {
1026                 DEBUG_1("from cache: %s", imd->image_fd->path);
1027                 return TRUE;
1028                 }
1029
1030         if (image_read_ahead_check(imd))
1031                 {
1032                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
1033                 return TRUE;
1034                 }
1035
1036         if (!imd->delay_flip && image_get_pixbuf(imd))
1037                 {
1038                 PixbufRenderer *pr;
1039
1040                 pr = PIXBUF_RENDERER(imd->pr);
1041                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1042                 pr->pixbuf = nullptr;
1043                 }
1044
1045         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
1046
1047         imd->il = image_loader_new(fd);
1048
1049         image_load_set_signals(imd, FALSE);
1050
1051         if (!image_loader_start(imd->il))
1052                 {
1053                 DEBUG_1("image start error");
1054
1055                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
1056
1057                 image_loader_free(imd->il);
1058                 imd->il = nullptr;
1059
1060                 image_complete_util(imd, FALSE);
1061
1062                 return FALSE;
1063                 }
1064
1065         image_state_set(imd, IMAGE_STATE_LOADING);
1066
1067 /*
1068         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
1069                 {
1070                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
1071                 }
1072 */
1073         return TRUE;
1074 }
1075
1076 static void image_reset(ImageWindow *imd)
1077 {
1078         /* stops anything currently being done */
1079
1080         DEBUG_1("%s image reset", get_exec_time());
1081
1082         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
1083
1084         image_loader_free(imd->il);
1085         imd->il = nullptr;
1086
1087         color_man_free(static_cast<ColorMan *>(imd->cm));
1088         imd->cm = nullptr;
1089
1090         imd->delay_alter_type = ALTER_NONE;
1091
1092         image_state_set(imd, IMAGE_STATE_NONE);
1093 }
1094
1095 /*
1096  *-------------------------------------------------------------------
1097  * image changer
1098  *-------------------------------------------------------------------
1099  */
1100
1101 static void image_change_complete(ImageWindow *imd, gdouble zoom)
1102 {
1103         image_reset(imd);
1104         imd->unknown = TRUE;
1105
1106         /** @FIXME Might be improved when the wepb animation changes happen */
1107         g_object_set(G_OBJECT(imd->pr), "zoom_2pass", options->image.zoom_2pass, NULL);
1108         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality, NULL);
1109
1110         if (!imd->image_fd)
1111                 {
1112                 image_change_pixbuf(imd, nullptr, zoom, FALSE);
1113                 }
1114         else
1115                 {
1116
1117                 if (is_readable_file(imd->image_fd->path))
1118                         {
1119                         PixbufRenderer *pr;
1120
1121                         pr = PIXBUF_RENDERER(imd->pr);
1122                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
1123
1124                         /* Disable 2-pass for GIFs. Animated GIFs can flicker when enabled
1125                          * Reduce quality to worst but fastest to avoid dropped frames */
1126                         if (g_ascii_strcasecmp(imd->image_fd->extension, ".GIF") == 0)
1127                                 {
1128                                 g_object_set(G_OBJECT(imd->pr), "zoom_2pass", FALSE, NULL);
1129                                 g_object_set(G_OBJECT(imd->pr), "zoom_quality", GDK_INTERP_NEAREST, NULL);
1130                                 }
1131
1132
1133                         if (image_load_begin(imd, imd->image_fd))
1134                                 {
1135                                 imd->unknown = FALSE;
1136                                 }
1137                         }
1138
1139                 if (imd->unknown == TRUE)
1140                         {
1141                         GdkPixbuf *pixbuf;
1142
1143                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
1144                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
1145                         g_object_unref(pixbuf);
1146                         }
1147                 }
1148
1149         image_update_util(imd);
1150 }
1151
1152 static void image_change_real(ImageWindow *imd, FileData *fd,
1153                               CollectionData *cd, CollectInfo *info, gdouble zoom)
1154 {
1155
1156         imd->collection = cd;
1157         imd->collection_info = info;
1158
1159         if (imd->auto_refresh && imd->image_fd)
1160                 file_data_unregister_real_time_monitor(imd->image_fd);
1161
1162         file_data_unref(imd->image_fd);
1163         imd->image_fd = file_data_ref(fd);
1164
1165
1166         image_change_complete(imd, zoom);
1167
1168         image_update_title(imd);
1169         image_state_set(imd, IMAGE_STATE_IMAGE);
1170
1171         if (imd->auto_refresh && imd->image_fd)
1172                 file_data_register_real_time_monitor(imd->image_fd);
1173 }
1174
1175 /*
1176  *-------------------------------------------------------------------
1177  * focus stuff
1178  *-------------------------------------------------------------------
1179  */
1180
1181 static gboolean image_focus_in_cb(GtkWidget *UNUSED(widget), GdkEventFocus *UNUSED(event), gpointer data)
1182 {
1183         auto imd = static_cast<ImageWindow *>(data);
1184
1185         if (imd->func_focus_in)
1186                 {
1187                 imd->func_focus_in(imd, imd->data_focus_in);
1188                 }
1189
1190         return TRUE;
1191 }
1192
1193 static gboolean image_scroll_cb(GtkWidget *UNUSED(widget), GdkEventScroll *event, gpointer data)
1194 {
1195         auto imd = static_cast<ImageWindow *>(data);
1196         gboolean in_lw = FALSE;
1197         gint i = 0;
1198         LayoutWindow *lw = nullptr;
1199
1200         if (imd->func_scroll && event && event->type == GDK_SCROLL)
1201                 {
1202                 layout_valid(&lw);
1203                 /* check if the image is in a layout window */
1204                 for (i = 0; i < MAX_SPLIT_IMAGES; i++)
1205                         {
1206                         if (imd == lw->split_images[i])
1207                                 {
1208                                 in_lw = TRUE;
1209                                 break;
1210                                 }
1211                         }
1212
1213                 if (in_lw)
1214                         {
1215                         if (lw->options.split_pane_sync)
1216                                 {
1217                                 for (i = 0; i < MAX_SPLIT_IMAGES; i++)
1218                                         {
1219                                         if (lw->split_images[i])
1220                                                 {
1221                                                 layout_image_activate(lw, i, FALSE);
1222                                                 imd->func_scroll(lw->split_images[i], event, lw->split_images[i]->data_scroll);
1223                                                 }
1224                                         }
1225                                 }
1226                         else
1227                                 {
1228                                 imd->func_scroll(imd, event, imd->data_scroll);
1229                                 }
1230                         return TRUE;
1231                         }
1232                 else
1233                         {
1234                         imd->func_scroll(imd, event, imd->data_scroll);
1235                         return TRUE;
1236                         }
1237                 }
1238
1239         return FALSE;
1240 }
1241
1242 /*
1243  *-------------------------------------------------------------------
1244  * public interface
1245  *-------------------------------------------------------------------
1246  */
1247
1248 void image_attach_window(ImageWindow *imd, GtkWidget *window,
1249                          const gchar *title, const gchar *title_right, gboolean show_zoom)
1250 {
1251         LayoutWindow *lw;
1252
1253         imd->top_window = window;
1254         g_free(imd->title);
1255         imd->title = g_strdup(title);
1256         g_free(imd->title_right);
1257         imd->title_right = g_strdup(title_right);
1258         imd->title_show_zoom = show_zoom;
1259
1260         lw = layout_find_by_image(imd);
1261
1262         if (!(options->image.fit_window_to_image && lw && (lw->options.tools_float || lw->options.tools_hidden))) window = nullptr;
1263
1264         pixbuf_renderer_set_parent(reinterpret_cast<PixbufRenderer *>(imd->pr), reinterpret_cast<GtkWindow *>(window));
1265
1266         image_update_title(imd);
1267 }
1268
1269 void image_set_update_func(ImageWindow *imd,
1270                            void (*func)(ImageWindow *imd, gpointer data),
1271                            gpointer data)
1272 {
1273         imd->func_update = func;
1274         imd->data_update = data;
1275 }
1276
1277 void image_set_complete_func(ImageWindow *imd,
1278                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
1279                              gpointer data)
1280 {
1281         imd->func_complete = func;
1282         imd->data_complete = data;
1283 }
1284
1285 void image_set_state_func(ImageWindow *imd,
1286                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
1287                         gpointer data)
1288 {
1289         imd->func_state = func;
1290         imd->data_state = data;
1291 }
1292
1293
1294 void image_set_button_func(ImageWindow *imd,
1295                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
1296                            gpointer data)
1297 {
1298         imd->func_button = func;
1299         imd->data_button = data;
1300 }
1301
1302 void image_set_drag_func(ImageWindow *imd,
1303                            void (*func)(ImageWindow *, GdkEventMotion *event, gdouble dx, gdouble dy, gpointer),
1304                            gpointer data)
1305 {
1306         imd->func_drag = func;
1307         imd->data_drag = data;
1308 }
1309
1310 void image_set_scroll_func(ImageWindow *imd,
1311                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
1312                            gpointer data)
1313 {
1314         imd->func_scroll = func;
1315         imd->data_scroll = data;
1316 }
1317
1318 #pragma GCC diagnostic push
1319 #pragma GCC diagnostic ignored "-Wunused-function"
1320 void image_set_scroll_notify_func_unused(ImageWindow *imd,
1321                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
1322                                   gpointer data)
1323 {
1324         imd->func_scroll_notify = func;
1325         imd->data_scroll_notify = data;
1326 }
1327 #pragma GCC diagnostic pop
1328
1329 void image_set_focus_in_func(ImageWindow *imd,
1330                            void (*func)(ImageWindow *, gpointer),
1331                            gpointer data)
1332 {
1333         imd->func_focus_in = func;
1334         imd->data_focus_in = data;
1335 }
1336
1337 /* path, name */
1338
1339 const gchar *image_get_path(ImageWindow *imd)
1340 {
1341         if (imd->image_fd == nullptr) return nullptr;
1342         return imd->image_fd->path;
1343 }
1344
1345 const gchar *image_get_name(ImageWindow *imd)
1346 {
1347         if (imd->image_fd == nullptr) return nullptr;
1348         return imd->image_fd->name;
1349 }
1350
1351 FileData *image_get_fd(ImageWindow *imd)
1352 {
1353         return imd->image_fd;
1354 }
1355
1356 /* merely changes path string, does not change the image! */
1357 void image_set_fd(ImageWindow *imd, FileData *fd)
1358 {
1359         if (imd->auto_refresh && imd->image_fd)
1360                 file_data_unregister_real_time_monitor(imd->image_fd);
1361
1362         file_data_unref(imd->image_fd);
1363         imd->image_fd = file_data_ref(fd);
1364
1365         image_update_title(imd);
1366         image_state_set(imd, IMAGE_STATE_IMAGE);
1367
1368         if (imd->auto_refresh && imd->image_fd)
1369                 file_data_register_real_time_monitor(imd->image_fd);
1370 }
1371
1372 /* load a new image */
1373
1374 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1375 {
1376         if (imd->image_fd == fd) return;
1377
1378         image_change_real(imd, fd, nullptr, nullptr, zoom);
1379 }
1380
1381 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1382 {
1383         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1384 }
1385
1386 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1387 {
1388         return pixbuf_renderer_get_pixbuf(reinterpret_cast<PixbufRenderer *>(imd->pr));
1389 }
1390
1391 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1392 {
1393         LayoutWindow *lw;
1394         StereoPixbufData stereo_data = STEREO_PIXBUF_DEFAULT;
1395         /* read_exif and similar functions can actually notice that the file has changed and trigger
1396            a notification that removes the pixbuf from cache and unrefs it. Therefore we must ref it
1397            here before it is taken over by the renderer. */
1398         if (pixbuf) g_object_ref(pixbuf);
1399
1400         imd->orientation = EXIF_ORIENTATION_TOP_LEFT;
1401         if (imd->image_fd)
1402                 {
1403                 if (imd->image_fd->user_orientation)
1404                         {
1405                         imd->orientation = imd->image_fd->user_orientation;
1406                         }
1407                 else if (options->image.exif_rotate_enable)
1408                         {
1409                         if (g_strcmp0(imd->image_fd->format_name, "heif") == 0)
1410                                 {
1411                                 imd->orientation = EXIF_ORIENTATION_TOP_LEFT;
1412                                 imd->image_fd->exif_orientation = imd->orientation;
1413                                 }
1414                         else
1415                                 {
1416                                 imd->orientation = metadata_read_int(imd->image_fd, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
1417                                 imd->image_fd->exif_orientation = imd->orientation;
1418                                 }
1419                         }
1420                 }
1421
1422         if (pixbuf)
1423                 {
1424                 stereo_data = static_cast<StereoPixbufData>(imd->user_stereo);
1425                 if (stereo_data == STEREO_PIXBUF_DEFAULT)
1426                         {
1427                         stereo_data = static_cast<StereoPixbufData>(GPOINTER_TO_INT(g_object_get_data(G_OBJECT(pixbuf), "stereo_data")));
1428                         }
1429                 }
1430
1431         pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), nullptr, nullptr, FALSE);
1432         if (imd->cm)
1433                 {
1434                 color_man_free(static_cast<ColorMan *>(imd->cm));
1435                 imd->cm = nullptr;
1436                 }
1437
1438         if (lazy)
1439                 {
1440                 pixbuf_renderer_set_pixbuf_lazy(reinterpret_cast<PixbufRenderer *>(imd->pr), pixbuf, zoom, imd->orientation, stereo_data);
1441                 }
1442         else
1443                 {
1444                 pixbuf_renderer_set_pixbuf(reinterpret_cast<PixbufRenderer *>(imd->pr), pixbuf, zoom);
1445                 pixbuf_renderer_set_orientation(reinterpret_cast<PixbufRenderer *>(imd->pr), imd->orientation);
1446                 pixbuf_renderer_set_stereo_data(reinterpret_cast<PixbufRenderer *>(imd->pr), stereo_data);
1447                 }
1448
1449         if (pixbuf) g_object_unref(pixbuf);
1450
1451         /* Color correction takes too much time for an animated gif */
1452         lw = layout_find_by_image(imd);
1453         if (imd->color_profile_enable && lw && !lw->animation)
1454                 {
1455                 image_post_process_color(imd, 0, FALSE); /** @todo error handling */
1456                 }
1457
1458         if (imd->cm || imd->desaturate || imd->overunderexposed)
1459                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), image_post_process_tile_color_cb, imd, (imd->cm != nullptr) );
1460
1461         image_state_set(imd, IMAGE_STATE_IMAGE);
1462 }
1463
1464 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1465 {
1466         CollectWindow *cw;
1467
1468         if (!cd || !info || !g_list_find(cd->list, info)) return;
1469
1470         image_change_real(imd, info->fd, cd, info, zoom);
1471         cw = collection_window_find(cd);
1472         if (cw)
1473                 {
1474                 collection_table_set_focus(cw->table, info);
1475                 collection_table_unselect_all(cw->table);
1476                 collection_table_select(cw->table,info);
1477                 }
1478
1479         if (info->fd)
1480                 {
1481                 image_chain_append_end(info->fd->path);
1482                 }
1483 }
1484
1485 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1486 {
1487         if (collection_to_number(imd->collection) >= 0)
1488                 {
1489                 if (g_list_find(imd->collection->list, imd->collection_info) != nullptr)
1490                         {
1491                         if (info) *info = imd->collection_info;
1492                         }
1493                 else
1494                         {
1495                         if (info) *info = nullptr;
1496                         }
1497                 return imd->collection;
1498                 }
1499
1500         if (info) *info = nullptr;
1501         return nullptr;
1502 }
1503
1504 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1505 {
1506         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (gpointer)image_read_ahead_error_cb, old_data))
1507                 g_signal_connect(G_OBJECT(il), "error", G_CALLBACK(image_read_ahead_error_cb), data);
1508
1509         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (gpointer)image_read_ahead_done_cb, old_data))
1510                 g_signal_connect(G_OBJECT(il), "done", G_CALLBACK(image_read_ahead_done_cb), data);
1511 }
1512
1513 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1514 {
1515         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (gpointer)image_load_area_cb, old_data))
1516                 g_signal_connect(G_OBJECT(il), "area_ready", G_CALLBACK(image_load_area_cb), data);
1517
1518         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (gpointer)image_load_error_cb, old_data))
1519                 g_signal_connect(G_OBJECT(il), "error", G_CALLBACK(image_load_error_cb), data);
1520
1521         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (gpointer)image_load_done_cb, old_data))
1522                 g_signal_connect(G_OBJECT(il), "done", G_CALLBACK(image_load_done_cb), data);
1523 }
1524
1525 /* this is more like a move function
1526  * it moves most data from source to imd
1527  */
1528 void image_move_from_image(ImageWindow *imd, ImageWindow *source)
1529 {
1530         if (imd == source) return;
1531
1532         imd->unknown = source->unknown;
1533
1534         imd->collection = source->collection;
1535         imd->collection_info = source->collection_info;
1536
1537         image_loader_free(imd->il);
1538         imd->il = nullptr;
1539
1540         image_set_fd(imd, image_get_fd(source));
1541
1542
1543         if (source->il)
1544                 {
1545                 imd->il = source->il;
1546                 source->il = nullptr;
1547
1548                 image_loader_sync_data(imd->il, source, imd);
1549
1550                 imd->delay_alter_type = source->delay_alter_type;
1551                 source->delay_alter_type = ALTER_NONE;
1552                 }
1553
1554         imd->color_profile_enable = source->color_profile_enable;
1555         imd->color_profile_input = source->color_profile_input;
1556         imd->color_profile_use_image = source->color_profile_use_image;
1557         color_man_free(static_cast<ColorMan *>(imd->cm));
1558         imd->cm = nullptr;
1559         if (source->cm)
1560                 {
1561                 ColorMan *cm;
1562
1563                 imd->cm = source->cm;
1564                 source->cm = nullptr;
1565
1566                 cm = static_cast<ColorMan *>(imd->cm);
1567                 cm->imd = imd;
1568                 cm->func_done_data = imd;
1569                 }
1570
1571         file_data_unref(imd->read_ahead_fd);
1572         source->read_ahead_fd = nullptr;
1573
1574         imd->orientation = source->orientation;
1575         imd->desaturate = source->desaturate;
1576
1577         imd->user_stereo = source->user_stereo;
1578
1579         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1580
1581         if (imd->cm || imd->desaturate || imd->overunderexposed)
1582                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), image_post_process_tile_color_cb, imd, (imd->cm != nullptr) );
1583         else
1584                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), nullptr, nullptr, TRUE);
1585
1586 }
1587
1588 /* this is  a copy function
1589  * source stays unchanged
1590  */
1591 void image_copy_from_image(ImageWindow *imd, ImageWindow *source)
1592 {
1593         if (imd == source) return;
1594
1595         imd->unknown = source->unknown;
1596
1597         imd->collection = source->collection;
1598         imd->collection_info = source->collection_info;
1599
1600         image_loader_free(imd->il);
1601         imd->il = nullptr;
1602
1603         image_set_fd(imd, image_get_fd(source));
1604
1605
1606         imd->color_profile_enable = source->color_profile_enable;
1607         imd->color_profile_input = source->color_profile_input;
1608         imd->color_profile_use_image = source->color_profile_use_image;
1609         color_man_free(static_cast<ColorMan *>(imd->cm));
1610         imd->cm = nullptr;
1611         if (source->cm)
1612                 {
1613                 ColorMan *cm;
1614
1615                 imd->cm = source->cm;
1616                 source->cm = nullptr;
1617
1618                 cm = static_cast<ColorMan *>(imd->cm);
1619                 cm->imd = imd;
1620                 cm->func_done_data = imd;
1621                 }
1622
1623         image_loader_free(imd->read_ahead_il);
1624         imd->read_ahead_il = source->read_ahead_il;
1625         source->read_ahead_il = nullptr;
1626         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1627
1628         file_data_unref(imd->read_ahead_fd);
1629         imd->read_ahead_fd = source->read_ahead_fd;
1630         source->read_ahead_fd = nullptr;
1631
1632         imd->completed = source->completed;
1633         imd->state = source->state;
1634         source->state = IMAGE_STATE_NONE;
1635
1636         imd->orientation = source->orientation;
1637         imd->desaturate = source->desaturate;
1638
1639         imd->user_stereo = source->user_stereo;
1640
1641         pixbuf_renderer_copy(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1642
1643         if (imd->cm || imd->desaturate || imd->overunderexposed)
1644                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), image_post_process_tile_color_cb, imd, (imd->cm != nullptr) );
1645         else
1646                 pixbuf_renderer_set_post_process_func(reinterpret_cast<PixbufRenderer *>(imd->pr), nullptr, nullptr, TRUE);
1647
1648 }
1649
1650
1651 /* manipulation */
1652
1653 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1654 {
1655         pixbuf_renderer_area_changed(reinterpret_cast<PixbufRenderer *>(imd->pr), x, y, width, height);
1656 }
1657
1658 void image_reload(ImageWindow *imd)
1659 {
1660         if (pixbuf_renderer_get_tiles(reinterpret_cast<PixbufRenderer *>(imd->pr))) return;
1661
1662         image_change_complete(imd, image_zoom_get(imd));
1663 }
1664
1665 void image_scroll(ImageWindow *imd, gint x, gint y)
1666 {
1667         pixbuf_renderer_scroll(reinterpret_cast<PixbufRenderer *>(imd->pr), x, y);
1668 }
1669
1670 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1671                            gdouble x_align, gdouble y_align)
1672 {
1673         pixbuf_renderer_scroll_to_point(reinterpret_cast<PixbufRenderer *>(imd->pr), x, y, x_align, y_align);
1674 }
1675
1676 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1677 {
1678         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1679 }
1680
1681 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1682 {
1683         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1684 }
1685
1686 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1687 {
1688         pixbuf_renderer_zoom_adjust(reinterpret_cast<PixbufRenderer *>(imd->pr), increment);
1689 }
1690
1691 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1692 {
1693         pixbuf_renderer_zoom_adjust_at_point(reinterpret_cast<PixbufRenderer *>(imd->pr), increment, x, y);
1694 }
1695
1696 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1697 {
1698         pixbuf_renderer_zoom_set_limits(reinterpret_cast<PixbufRenderer *>(imd->pr), min, max);
1699 }
1700
1701 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1702 {
1703         pixbuf_renderer_zoom_set(reinterpret_cast<PixbufRenderer *>(imd->pr), zoom);
1704 }
1705
1706 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1707 {
1708         PixbufRenderer *pr;
1709         gdouble zoom;
1710         gint width, height;
1711
1712         pr = reinterpret_cast<PixbufRenderer *>(imd->pr);
1713
1714         if (!pixbuf_renderer_get_pixbuf(pr) ||
1715             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1716
1717         if (vertical)
1718                 {
1719                 zoom = static_cast<gdouble>(pr->viewport_height) / height;
1720                 }
1721         else
1722                 {
1723                 zoom = static_cast<gdouble>(pr->viewport_width) / width;
1724                 }
1725
1726         if (zoom < 1.0)
1727                 {
1728                 zoom = 0.0 - 1.0 / zoom;
1729                 }
1730
1731         pixbuf_renderer_zoom_set(pr, zoom);
1732 }
1733
1734 gdouble image_zoom_get(ImageWindow *imd)
1735 {
1736         return pixbuf_renderer_zoom_get(reinterpret_cast<PixbufRenderer *>(imd->pr));
1737 }
1738
1739 gdouble image_zoom_get_real(ImageWindow *imd)
1740 {
1741         return pixbuf_renderer_zoom_get_scale(reinterpret_cast<PixbufRenderer *>(imd->pr));
1742 }
1743
1744 gchar *image_zoom_get_as_text(ImageWindow *imd)
1745 {
1746         gdouble zoom;
1747         gdouble scale;
1748         gdouble l = 1.0;
1749         gdouble r = 1.0;
1750         gint pl = 0;
1751         gint pr = 0;
1752         const gchar *approx = " ";
1753
1754         zoom = image_zoom_get(imd);
1755         scale = image_zoom_get_real(imd);
1756
1757         if (zoom > 0.0)
1758                 {
1759                 l = zoom;
1760                 }
1761         else if (zoom < 0.0)
1762                 {
1763                 r = 0.0 - zoom;
1764                 }
1765         else if (zoom == 0.0 && scale != 0.0)
1766                 {
1767                 if (scale >= 1.0)
1768                         {
1769                         l = scale;
1770                         }
1771                 else
1772                         {
1773                         r = 1.0 / scale;
1774                         }
1775                 approx = "~";
1776                 }
1777
1778         if (rint(l) != l) pl = 2;
1779         if (rint(r) != r) pr = 2;
1780
1781         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1782 }
1783
1784 gdouble image_zoom_get_default(ImageWindow *imd)
1785 {
1786         gdouble zoom = 1.0;
1787
1788         switch (options->image.zoom_mode)
1789         {
1790         case ZOOM_RESET_ORIGINAL:
1791                 break;
1792         case ZOOM_RESET_FIT_WINDOW:
1793                 zoom = 0.0;
1794                 break;
1795         case ZOOM_RESET_NONE:
1796                 if (imd) zoom = image_zoom_get(imd);
1797                 break;
1798         }
1799
1800         return zoom;
1801 }
1802
1803 /* stereo */
1804
1805 #pragma GCC diagnostic push
1806 #pragma GCC diagnostic ignored "-Wunused-function"
1807 gint image_stereo_get_unused(ImageWindow *imd)
1808 {
1809         return pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1810 }
1811 #pragma GCC diagnostic pop
1812
1813 void image_stereo_set(ImageWindow *imd, gint stereo_mode)
1814 {
1815         DEBUG_1("Setting stereo mode %04x for imd %p", stereo_mode, (void *)imd);
1816         pixbuf_renderer_stereo_set(reinterpret_cast<PixbufRenderer *>(imd->pr), stereo_mode);
1817 }
1818
1819 #pragma GCC diagnostic push
1820 #pragma GCC diagnostic ignored "-Wunused-function"
1821 void image_stereo_swap_unused(ImageWindow *imd)
1822 {
1823         gint stereo_mode = pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1824         stereo_mode ^= PR_STEREO_SWAP;
1825         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1826 }
1827 #pragma GCC diagnostic pop
1828
1829 StereoPixbufData image_stereo_pixbuf_get(ImageWindow *imd)
1830 {
1831         return static_cast<StereoPixbufData>(imd->user_stereo);
1832 }
1833
1834 void image_stereo_pixbuf_set(ImageWindow *imd, StereoPixbufData stereo_mode)
1835 {
1836         imd->user_stereo = stereo_mode;
1837         image_reload(imd);
1838 }
1839
1840 /* read ahead */
1841
1842 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1843 {
1844         if (pixbuf_renderer_get_tiles(reinterpret_cast<PixbufRenderer *>(imd->pr))) return;
1845
1846         if (fd)
1847                 {
1848                 if (!file_cache_get(image_get_cache(), fd))
1849                         {
1850                         image_read_ahead_set(imd, fd);
1851                         }
1852                 }
1853         else
1854                 {
1855                 image_read_ahead_cancel(imd);
1856                 }
1857 }
1858
1859 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1860 {
1861         auto imd = static_cast<ImageWindow *>(data);
1862
1863         if (!imd || !image_get_pixbuf(imd) ||
1864             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1865             !imd->image_fd || /* nothing to reload */
1866             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1867             ) return;
1868
1869         if ((type & NOTIFY_REREAD) && fd == imd->image_fd)
1870                 {
1871                 /* there is no need to reload on NOTIFY_CHANGE,
1872                    modified files should be detacted anyway and NOTIFY_REREAD should be received
1873                    or they are removed from the filelist completely on "move" and "delete"
1874                 */
1875                 DEBUG_1("Notify image: %s %04x", fd->path, type);
1876                 image_reload(imd);
1877                 }
1878 }
1879
1880 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1881 {
1882         if (!enable && imd->auto_refresh && imd->image_fd)
1883                 file_data_unregister_real_time_monitor(imd->image_fd);
1884
1885         if (enable && !imd->auto_refresh && imd->image_fd)
1886                 file_data_register_real_time_monitor(imd->image_fd);
1887
1888         imd->auto_refresh = enable;
1889 }
1890
1891 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1892 {
1893         imd->top_window_sync = allow_sync;
1894
1895         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1896 }
1897
1898 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1899 {
1900         pixbuf_renderer_set_color(reinterpret_cast<PixbufRenderer *>(imd->pr), color);
1901 }
1902
1903 void image_background_set_color_from_options(ImageWindow *imd, gboolean fullscreen)
1904 {
1905         GdkColor *color = nullptr;
1906         GdkColor theme_color;
1907         GdkRGBA bg_color;
1908         GtkStyleContext *style_context;
1909         LayoutWindow *lw = nullptr;
1910
1911         if ((options->image.use_custom_border_color && !fullscreen) ||
1912             (options->image.use_custom_border_color_in_fullscreen && fullscreen))
1913                 {
1914                 color = &options->image.border_color;
1915                 }
1916
1917         else
1918                 {
1919                 if (!layout_valid(&lw)) return;
1920
1921                 style_context = gtk_widget_get_style_context(lw->window);
1922                 gtk_style_context_get_background_color(style_context, GTK_STATE_FLAG_NORMAL, &bg_color);
1923
1924                 theme_color.red = bg_color.red * 65535;
1925                 theme_color.green = bg_color.green * 65535;
1926                 theme_color.blue = bg_color.blue * 65535;
1927
1928                 color = &theme_color;
1929                 }
1930
1931         image_background_set_color(imd, color);
1932 }
1933
1934 void image_color_profile_set(ImageWindow *imd,
1935                              gint input_type,
1936                              gboolean use_image)
1937 {
1938         if (!imd) return;
1939
1940         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
1941                 {
1942                 return;
1943                 }
1944
1945         imd->color_profile_input = input_type;
1946         imd->color_profile_use_image = use_image;
1947 }
1948
1949 gboolean image_color_profile_get(ImageWindow *imd,
1950                                  gint *input_type,
1951                                  gboolean *use_image)
1952 {
1953         if (!imd) return FALSE;
1954
1955         if (input_type) *input_type = imd->color_profile_input;
1956         if (use_image) *use_image = imd->color_profile_use_image;
1957
1958         return TRUE;
1959 }
1960
1961 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1962 {
1963         if (!imd) return;
1964
1965         if (imd->color_profile_enable == enable) return;
1966
1967         imd->color_profile_enable = enable;
1968 }
1969
1970 gboolean image_color_profile_get_use(ImageWindow *imd)
1971 {
1972         if (!imd) return FALSE;
1973
1974         return imd->color_profile_enable;
1975 }
1976
1977 gboolean image_color_profile_get_status(ImageWindow *imd, gchar **image_profile, gchar **screen_profile)
1978 {
1979         ColorMan *cm;
1980         if (!imd) return FALSE;
1981
1982         cm = static_cast<ColorMan *>(imd->cm);
1983         if (!cm) return FALSE;
1984         return color_man_get_status(cm, image_profile, screen_profile);
1985
1986 }
1987
1988 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1989 {
1990         if (!imd ||
1991             imd->delay_flip == delay) return;
1992
1993         imd->delay_flip = delay;
1994
1995         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1996
1997         if (!imd->delay_flip && imd->il)
1998                 {
1999                 PixbufRenderer *pr;
2000
2001                 pr = PIXBUF_RENDERER(imd->pr);
2002                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
2003                 pr->pixbuf = nullptr;
2004
2005                 image_load_pixbuf_ready(imd);
2006                 }
2007 }
2008
2009 void image_to_root_window(ImageWindow *UNUSED(imd), gboolean UNUSED(scaled))
2010 {
2011 }
2012
2013 void image_select(ImageWindow *imd, gboolean select)
2014 {
2015         if (!imd->has_frame) return;
2016
2017         if (select)
2018                 {
2019                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
2020                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
2021                 }
2022         else
2023                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
2024 }
2025
2026 void image_set_selectable(ImageWindow *imd, gboolean selectable)
2027 {
2028         if (!imd->has_frame) return;
2029
2030         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
2031         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
2032 }
2033
2034 void image_grab_focus(ImageWindow *imd)
2035 {
2036         if (imd->has_frame)
2037                 {
2038                 gtk_widget_grab_focus(imd->frame);
2039                 }
2040         else
2041                 {
2042                 gtk_widget_grab_focus(imd->widget);
2043                 }
2044 }
2045
2046
2047 /*
2048  *-------------------------------------------------------------------
2049  * prefs sync
2050  *-------------------------------------------------------------------
2051  */
2052
2053 static void image_options_set(ImageWindow *imd)
2054 {
2055         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
2056                                         "zoom_2pass", options->image.zoom_2pass,
2057                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
2058                                         "scroll_reset", options->image.scroll_reset_method,
2059                                         "cache_display", options->image.tile_cache_max,
2060                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
2061                                         "window_limit", options->image.limit_window_size,
2062                                         "window_limit_value", options->image.max_window_size,
2063                                         "autofit_limit", options->image.limit_autofit_size,
2064                                         "autofit_limit_value", options->image.max_autofit_size,
2065                                         "enlargement_limit_value", options->image.max_enlargement_size,
2066
2067                                         NULL);
2068
2069         pixbuf_renderer_set_parent(reinterpret_cast<PixbufRenderer *>(imd->pr), reinterpret_cast<GtkWindow *>(imd->top_window));
2070
2071         image_stereo_set(imd, options->stereo.mode);
2072         pixbuf_renderer_stereo_fixed_set(reinterpret_cast<PixbufRenderer *>(imd->pr),
2073                                         options->stereo.fixed_w, options->stereo.fixed_h,
2074                                         options->stereo.fixed_x1, options->stereo.fixed_y1,
2075                                         options->stereo.fixed_x2, options->stereo.fixed_y2);
2076 }
2077
2078 void image_options_sync()
2079 {
2080         GList *work;
2081
2082         work = image_list;
2083         while (work)
2084                 {
2085                 ImageWindow *imd;
2086
2087                 imd = static_cast<ImageWindow *>(work->data);
2088                 work = work->next;
2089
2090                 image_options_set(imd);
2091                 }
2092 }
2093
2094 /*
2095  *-------------------------------------------------------------------
2096  * init / destroy
2097  *-------------------------------------------------------------------
2098  */
2099
2100 static void image_free(ImageWindow *imd)
2101 {
2102         image_list = g_list_remove(image_list, imd);
2103
2104         if (imd->auto_refresh && imd->image_fd)
2105                 file_data_unregister_real_time_monitor(imd->image_fd);
2106
2107         file_data_unregister_notify_func(image_notify_cb, imd);
2108
2109         image_reset(imd);
2110
2111         image_read_ahead_cancel(imd);
2112
2113         file_data_unref(imd->image_fd);
2114         g_free(imd->title);
2115         g_free(imd->title_right);
2116         g_free(imd);
2117 }
2118
2119 static void image_destroy_cb(GtkWidget *UNUSED(widget), gpointer data)
2120 {
2121         auto imd = static_cast<ImageWindow *>(data);
2122         image_free(imd);
2123 }
2124
2125 gboolean selectable_frame_draw_cb(GtkWidget *widget, cairo_t *cr, gpointer UNUSED(data))
2126 {
2127         GtkAllocation allocation;
2128         gtk_widget_get_allocation(widget, &allocation);
2129         gtk_paint_flat_box(gtk_widget_get_style(widget),
2130                            cr,
2131                            gtk_widget_get_state(widget),
2132                            gtk_frame_get_shadow_type(GTK_FRAME(widget)),
2133                            widget,
2134                            nullptr,
2135                            allocation.x + 3, allocation.y + 3,
2136                            allocation.width - 6, allocation.height - 6);
2137
2138         if (gtk_widget_has_focus(widget))
2139                 {
2140                 gtk_paint_focus(gtk_widget_get_style(widget), cr, GTK_STATE_ACTIVE,
2141                                 widget, "image_window",
2142                                 allocation.x, allocation.y,
2143                                 allocation.width - 1, allocation.height - 1);
2144                 }
2145         else
2146                 {
2147                 gtk_paint_shadow(gtk_widget_get_style(widget), cr, GTK_STATE_NORMAL, GTK_SHADOW_IN,
2148                                  widget, "image_window",
2149                                  allocation.x, allocation.y,
2150                                  allocation.width - 1, allocation.height - 1);
2151                 }
2152         return FALSE;
2153 }
2154
2155 void image_set_frame(ImageWindow *imd, gboolean frame)
2156 {
2157         frame = !!frame;
2158
2159         if (frame == imd->has_frame) return;
2160
2161         gtk_widget_hide(imd->pr);
2162
2163         if (frame)
2164                 {
2165                 imd->frame = gtk_frame_new(nullptr);
2166                 DEBUG_NAME(imd->frame);
2167                 g_object_ref(imd->pr);
2168                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
2169                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
2170
2171                 g_object_unref(imd->pr);
2172                 gtk_widget_set_can_focus(imd->frame, TRUE);
2173                 gtk_widget_set_app_paintable(imd->frame, TRUE);
2174
2175                 g_signal_connect(G_OBJECT(imd->frame), "draw",
2176                                  G_CALLBACK(selectable_frame_draw_cb), NULL);
2177                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
2178                                  G_CALLBACK(image_focus_in_cb), imd);
2179
2180                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
2181                 gtk_widget_show(imd->frame);
2182                 }
2183         else
2184                 {
2185                 g_object_ref(imd->pr);
2186                 if (imd->frame)
2187                         {
2188                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
2189                         gtk_widget_destroy(imd->frame);
2190                         imd->frame = nullptr;
2191                         }
2192                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
2193
2194                 g_object_unref(imd->pr);
2195                 }
2196
2197         gtk_widget_show(imd->pr);
2198
2199         imd->has_frame = frame;
2200 }
2201
2202 ImageWindow *image_new(gboolean frame)
2203 {
2204         ImageWindow *imd;
2205
2206         imd = g_new0(ImageWindow, 1);
2207
2208         imd->unknown = TRUE;
2209         imd->has_frame = -1; /* not initialized; for image_set_frame */
2210         imd->delay_alter_type = ALTER_NONE;
2211         imd->state = IMAGE_STATE_NONE;
2212         imd->color_profile_from_image = COLOR_PROFILE_NONE;
2213         imd->orientation = 1;
2214
2215         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
2216         DEBUG_NAME(imd->pr);
2217
2218         image_options_set(imd);
2219
2220         imd->widget = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
2221         DEBUG_NAME(imd->widget);
2222
2223         image_set_frame(imd, frame);
2224
2225         image_set_selectable(imd, 0);
2226
2227         g_signal_connect(G_OBJECT(imd->pr), "clicked",
2228                          G_CALLBACK(image_click_cb), imd);
2229         g_signal_connect(G_OBJECT(imd->pr), "button_press_event",
2230                          G_CALLBACK(image_press_cb), imd);
2231         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
2232                          G_CALLBACK(image_scroll_notify_cb), imd);
2233
2234         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
2235                          G_CALLBACK(image_scroll_cb), imd);
2236
2237         g_signal_connect(G_OBJECT(imd->pr), "destroy",
2238                          G_CALLBACK(image_destroy_cb), imd);
2239
2240         g_signal_connect(G_OBJECT(imd->pr), "zoom",
2241                          G_CALLBACK(image_zoom_cb), imd);
2242         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
2243                          G_CALLBACK(image_render_complete_cb), imd);
2244         g_signal_connect(G_OBJECT(imd->pr), "drag",
2245                          G_CALLBACK(image_drag_cb), imd);
2246
2247         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
2248
2249         image_list = g_list_append(image_list, imd);
2250
2251         return imd;
2252 }
2253
2254 void image_get_rectangle(gint *x1, gint *y1, gint *x2, gint *y2)
2255 {
2256         *x1 = rect_x1;
2257         *y1 = rect_y1;
2258         *x2 = rect_x2;
2259         *y2 = rect_y2;
2260 }
2261
2262 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */