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