src/image.c

   1 /*
   2  * Copyright (C) 2006 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "main.h"
  23 #include "image.h"
  24
  25
  26 #include "collect.h"
  27 #include "color-man.h"
  28 #include "exif.h"
  29 #include "metadata.h"
  30 #include "histogram.h"
  31 #include "image-load.h"
  32 #include "image-overlay.h"
  33 #include "layout.h"
  34 #include "layout_image.h"
  35 #include "pixbuf-renderer.h"
  36 #include "pixbuf_util.h"
  37 #include "ui_fileops.h"
  38
  39 #include "filedata.h"
  40 #include "filecache.h"
  41
  42 #include <math.h>
  43
  44 static GList *image_list = NULL;
  45
  46 static void image_update_title(ImageWindow *imd);
  47 static void image_read_ahead_start(ImageWindow *imd);
  48 static void image_cache_set(ImageWindow *imd, FileData *fd);
  49
  50 /*
  51  *-------------------------------------------------------------------
  52  * 'signals'
  53  *-------------------------------------------------------------------
  54  */
  55
  56 static void image_click_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  57 {
  58         ImageWindow *imd = data;
  59         if (!options->image_lm_click_nav && event->button == MOUSE_BUTTON_MIDDLE)
  60                 {
  61                 imd->mouse_wheel_mode = !imd->mouse_wheel_mode;
  62                 }
  63
  64         if (imd->func_button)
  65                 {
  66                 imd->func_button(imd, event, imd->data_button);
  67                 }
  68 }
  69
  70 static void image_drag_cb(PixbufRenderer *pr, GdkEventMotion *event, gpointer data)
  71 {
  72         ImageWindow *imd = data;
  73         gint width, height;
  74
  75         pixbuf_renderer_get_scaled_size(pr, &width, &height);
  76
  77         if (imd->func_drag)
  78                 {
  79                 imd->func_drag(imd, event,
  80                                (gfloat)(pr->drag_last_x - event->x) / width,
  81                                (gfloat)(pr->drag_last_y - event->y) / height,
  82                                imd->data_button);
  83                 }
  84 }
  85
  86 static void image_scroll_notify_cb(PixbufRenderer *pr, gpointer data)
  87 {
  88         ImageWindow *imd = data;
  89
  90         if (imd->func_scroll_notify && pr->scale)
  91                 {
  92                 imd->func_scroll_notify(imd,
  93                                         (gint)((gdouble)pr->x_scroll / pr->scale),
  94                                         (gint)((gdouble)pr->y_scroll / pr->scale),
  95                                         (gint)((gdouble)pr->image_width - pr->vis_width / pr->scale),
  96                                         (gint)((gdouble)pr->image_height - pr->vis_height / pr->scale),
  97                                         imd->data_scroll_notify);
  98                 }
  99 }
 100
 101 static void image_update_util(ImageWindow *imd)
 102 {
 103         if (imd->func_update) imd->func_update(imd, imd->data_update);
 104 }
 105
 106
 107 static void image_complete_util(ImageWindow *imd, gboolean preload)
 108 {
 109         if (imd->il && image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il)) return;
 110
 111         DEBUG_1("%s image load completed \"%s\" (%s)", get_exec_time(),
 112                           (preload) ? (imd->read_ahead_fd ? imd->read_ahead_fd->path : "null") :
 113                                       (imd->image_fd ? imd->image_fd->path : "null"),
 114                           (preload) ? "preload" : "current");
 115
 116         if (!preload) imd->completed = TRUE;
 117         if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
 118 }
 119
 120 static void image_render_complete_cb(PixbufRenderer *pr, gpointer data)
 121 {
 122         ImageWindow *imd = data;
 123
 124         image_complete_util(imd, FALSE);
 125 }
 126
 127 static void image_state_set(ImageWindow *imd, ImageState state)
 128 {
 129         if (state == IMAGE_STATE_NONE)
 130                 {
 131                 imd->state = state;
 132                 }
 133         else
 134                 {
 135                 imd->state |= state;
 136                 }
 137         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 138 }
 139
 140 static void image_state_unset(ImageWindow *imd, ImageState state)
 141 {
 142         imd->state &= ~state;
 143         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 144 }
 145
 146 static void image_zoom_cb(PixbufRenderer *pr, gdouble zoom, gpointer data)
 147 {
 148         ImageWindow *imd = data;
 149
 150         if (imd->title_show_zoom) image_update_title(imd);
 151         image_state_set(imd, IMAGE_STATE_IMAGE);
 152         image_update_util(imd);
 153 }
 154
 155 /*
 156  *-------------------------------------------------------------------
 157  * misc
 158  *-------------------------------------------------------------------
 159  */
 160
 161 static void image_update_title(ImageWindow *imd)
 162 {
 163         gchar *title = NULL;
 164         gchar *zoom = NULL;
 165         gchar *collection = NULL;
 166
 167         if (!imd->top_window) return;
 168
 169         if (imd->collection && collection_to_number(imd->collection) >= 0)
 170                 {
 171                 const gchar *name = imd->collection->name;
 172                 if (!name) name = _("Untitled");
 173                 collection = g_strdup_printf(_(" (Collection %s)"), name);
 174                 }
 175
 176         if (imd->title_show_zoom)
 177                 {
 178                 gchar *buf = image_zoom_get_as_text(imd);
 179                 zoom = g_strconcat(" [", buf, "]", NULL);
 180                 g_free(buf);
 181                 }
 182
 183         title = g_strdup_printf("%s%s%s%s%s%s",
 184                 imd->title ? imd->title : "",
 185                 imd->image_fd ? imd->image_fd->name : "",
 186                 zoom ? zoom : "",
 187                 collection ? collection : "",
 188                 imd->image_fd ? " - " : "",
 189                 imd->title_right ? imd->title_right : "");
 190
 191         gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
 192
 193         g_free(title);
 194         g_free(zoom);
 195         g_free(collection);
 196 }
 197
 198 /*
 199  *-------------------------------------------------------------------
 200  * rotation, flip, etc.
 201  *-------------------------------------------------------------------
 202  */
 203 static gboolean image_get_x11_screen_profile(ImageWindow *imd, guchar **screen_profile, gint *screen_profile_len)
 204 {
 205         GdkScreen *screen = gtk_widget_get_screen(imd->widget);;
 206         GdkAtom    type   = GDK_NONE;
 207         gint       format = 0;
 208
 209         return (gdk_property_get(gdk_screen_get_root_window(screen),
 210                                  gdk_atom_intern ("_ICC_PROFILE", FALSE),
 211                                  GDK_NONE,
 212                                  0, 64 * 1024 * 1024, FALSE,
 213                                  &type, &format, screen_profile_len, screen_profile) && *screen_profile_len > 0);
 214 }
 215
 216 static gboolean image_post_process_color(ImageWindow *imd, gint start_row, gboolean run_in_bg)
 217 {
 218         ColorMan *cm;
 219         ColorManProfileType input_type;
 220         ColorManProfileType screen_type;
 221         const gchar *input_file = NULL;
 222         const gchar *screen_file = NULL;
 223         guchar *profile = NULL;
 224         guint profile_len;
 225         guchar *screen_profile = NULL;
 226         gint screen_profile_len;
 227         ExifData *exif;
 228
 229         if (imd->cm) return FALSE;
 230
 231         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
 232             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
 233                 {
 234                 const gchar *file = options->color_profile.input_file[imd->color_profile_input - COLOR_PROFILE_FILE];
 235
 236                 if (!is_readable_file(file)) return FALSE;
 237
 238                 input_type = COLOR_PROFILE_FILE;
 239                 input_file = file;
 240                 }
 241         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
 242                  imd->color_profile_input <  COLOR_PROFILE_FILE)
 243                 {
 244                 input_type = imd->color_profile_input;
 245                 input_file = NULL;
 246                 }
 247         else
 248                 {
 249                 return FALSE;
 250                 }
 251
 252         if (options->color_profile.use_x11_screen_profile &&
 253             image_get_x11_screen_profile(imd, &screen_profile, &screen_profile_len))
 254                 {
 255                 screen_type = COLOR_PROFILE_MEM;
 256                 DEBUG_1("Using X11 screen profile, length: %d", screen_profile_len);
 257                 }
 258         else if (options->color_profile.screen_file &&
 259             is_readable_file(options->color_profile.screen_file))
 260                 {
 261                 screen_type = COLOR_PROFILE_FILE;
 262                 screen_file = options->color_profile.screen_file;
 263                 }
 264         else
 265                 {
 266                 screen_type = COLOR_PROFILE_SRGB;
 267                 screen_file = NULL;
 268                 }
 269
 270
 271         imd->color_profile_from_image = COLOR_PROFILE_NONE;
 272
 273         exif = exif_read_fd(imd->image_fd);
 274
 275         if (exif)
 276                 {
 277                 profile = exif_get_color_profile(exif, &profile_len);
 278                 if (profile)
 279                         {
 280                         if (!imd->color_profile_use_image)
 281                                 {
 282                                 g_free(profile);
 283                                 profile = NULL;
 284                                 }
 285                         DEBUG_1("Found embedded color profile");
 286                         imd->color_profile_from_image = COLOR_PROFILE_MEM;
 287                         }
 288                 else
 289                         {
 290                         gchar *interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
 291
 292                         if (interop_index)
 293                                 {
 294                                 /* Exif 2.21 specification */
 295                                 if (!strcmp(interop_index, "R98"))
 296                                         {
 297                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 298                                         DEBUG_1("Found EXIF 2.21 ColorSpace of sRGB");
 299                                         }
 300                                 else if (!strcmp(interop_index, "R03"))
 301                                         {
 302                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 303                                         DEBUG_1("Found EXIF 2.21 ColorSpace of AdobeRGB");
 304                                         }
 305                                 g_free(interop_index);
 306                                 }
 307                         else
 308                                 {
 309                                 gint cs;
 310
 311                                 /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
 312                                 if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
 313                                 if (cs == 1)
 314                                         {
 315                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 316                                         DEBUG_1("Found EXIF 2.2 ColorSpace of sRGB");
 317                                         }
 318                                 else if (cs == 2)
 319                                         {
 320                                         /* non-standard way of specifying AdobeRGB (used by some software) */
 321                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 322                                         DEBUG_1("Found EXIF 2.2 ColorSpace of AdobeRGB");
 323                                         }
 324                                 }
 325
 326                         if (imd->color_profile_use_image && imd->color_profile_from_image != COLOR_PROFILE_NONE)
 327                                {
 328                                input_type = imd->color_profile_from_image;
 329                                input_file = NULL;
 330                                }
 331                         }
 332
 333                 exif_free_fd(imd->image_fd, exif);
 334                 }
 335
 336
 337         if (profile)
 338                 {
 339                 cm = color_man_new_embedded(run_in_bg ? imd : NULL, NULL,
 340                                             profile, profile_len,
 341                                             screen_type, screen_file, screen_profile, screen_profile_len);
 342                 g_free(profile);
 343                 }
 344         else
 345                 {
 346                 cm = color_man_new(run_in_bg ? imd : NULL, NULL,
 347                                    input_type, input_file,
 348                                    screen_type, screen_file, screen_profile, screen_profile_len);
 349                 }
 350
 351         if (cm)
 352                 {
 353                 if (start_row > 0)
 354                         {
 355                         cm->row = start_row;
 356                         cm->incremental_sync = TRUE;
 357                         }
 358
 359                 imd->cm = (gpointer)cm;
 360                 }
 361
 362         image_update_util(imd);
 363
 364         if (screen_profile)
 365                 {
 366                 g_free(screen_profile);
 367                 screen_profile = NULL;
 368                 }
 369
 370         return !!cm;
 371 }
 372
 373
 374 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 375 {
 376         ImageWindow *imd = (ImageWindow *)data;
 377         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
 378         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 379
 380 }
 381
 382 void image_alter_orientation(ImageWindow *imd, FileData *fd_n, AlterType type)
 383 {
 384         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 385         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 386         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 387         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 388         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 389
 390         gint orientation;
 391
 392         if (!imd || !imd->pr || !imd->image_fd || !fd_n) return;
 393
 394         orientation = EXIF_ORIENTATION_TOP_LEFT;
 395         {
 396         if (fd_n->user_orientation)
 397                 {
 398                 orientation = fd_n->user_orientation;
 399                 }
 400         else
 401                 if (options->metadata.write_orientation)
 402                         {
 403                         orientation = metadata_read_int(fd_n, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
 404                         }
 405         }
 406
 407         switch (type)
 408                 {
 409                 case ALTER_ROTATE_90:
 410                         orientation = rotate_90[orientation];
 411                         break;
 412                 case ALTER_ROTATE_90_CC:
 413                         orientation = rotate_90_cc[orientation];
 414                         break;
 415                 case ALTER_ROTATE_180:
 416                         orientation = rotate_180[orientation];
 417                         break;
 418                 case ALTER_MIRROR:
 419                         orientation = mirror[orientation];
 420                         break;
 421                 case ALTER_FLIP:
 422                         orientation = flip[orientation];
 423                         break;
 424                 case ALTER_NONE:
 425                         orientation = fd_n->exif_orientation ? fd_n->exif_orientation : 1;
 426                         break;
 427                 default:
 428                         return;
 429                         break;
 430                 }
 431
 432         if (orientation != (fd_n->exif_orientation ? fd_n->exif_orientation : 1))
 433                 {
 434                 if (!options->metadata.write_orientation)
 435                         {
 436                         /* user_orientation does not work together with options->metadata.write_orientation,
 437                            use either one or the other.
 438                            we must however handle switching metadata.write_orientation on and off, therefore
 439                            we just disable referencing new fd's, not unreferencing the old ones
 440                         */
 441                         if (fd_n->user_orientation == 0) file_data_ref(fd_n);
 442                         fd_n->user_orientation = orientation;
 443                         }
 444                 }
 445         else
 446                 {
 447                 if (fd_n->user_orientation != 0) file_data_unref(fd_n);
 448                 fd_n->user_orientation = 0;
 449                 }
 450
 451         if (options->metadata.write_orientation)
 452                 {
 453                 if (type == ALTER_NONE)
 454                         {
 455                         metadata_write_revert(fd_n, ORIENTATION_KEY);
 456                         }
 457                 else
 458                         {
 459                         metadata_write_int(fd_n, ORIENTATION_KEY, orientation);
 460                         }
 461                 }
 462
 463         if (imd->image_fd == fd_n && !(options->metadata.write_orientation && !options->image.exif_rotate_enable))
 464                 {
 465                 imd->orientation = orientation;
 466                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, orientation);
 467                 }
 468 }
 469
 470 void image_set_desaturate(ImageWindow *imd, gboolean desaturate)
 471 {
 472         imd->desaturate = desaturate;
 473         if (imd->cm || imd->desaturate)
 474                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 475         else
 476                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 477         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 478 }
 479
 480 gboolean image_get_desaturate(ImageWindow *imd)
 481 {
 482         return imd->desaturate;
 483 }
 484
 485 /*
 486  *-------------------------------------------------------------------
 487  * read ahead (prebuffer)
 488  *-------------------------------------------------------------------
 489  */
 490
 491 static void image_read_ahead_cancel(ImageWindow *imd)
 492 {
 493         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 494
 495         image_loader_free(imd->read_ahead_il);
 496         imd->read_ahead_il = NULL;
 497
 498         file_data_unref(imd->read_ahead_fd);
 499         imd->read_ahead_fd = NULL;
 500 }
 501
 502 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 503 {
 504         ImageWindow *imd = data;
 505
 506         if (!imd->read_ahead_fd || !imd->read_ahead_il) return;
 507
 508         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 509
 510         if (!imd->read_ahead_fd->pixbuf)
 511                 {
 512                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 513                 if (imd->read_ahead_fd->pixbuf)
 514                         {
 515                         g_object_ref(imd->read_ahead_fd->pixbuf);
 516                         image_cache_set(imd, imd->read_ahead_fd);
 517                         }
 518                 }
 519         image_loader_free(imd->read_ahead_il);
 520         imd->read_ahead_il = NULL;
 521
 522         image_complete_util(imd, TRUE);
 523 }
 524
 525 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 526 {
 527         /* we even treat errors as success, maybe at least some of the file was ok */
 528         image_read_ahead_done_cb(il, data);
 529 }
 530
 531 static void image_read_ahead_start(ImageWindow *imd)
 532 {
 533         /* already started ? */
 534         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 535
 536         /* still loading ?, do later */
 537         if (imd->il /*|| imd->cm*/) return;
 538
 539         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 540
 541         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 542
 543         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 544
 545         g_signal_connect(G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 546         g_signal_connect(G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 547
 548         if (!image_loader_start(imd->read_ahead_il))
 549                 {
 550                 image_read_ahead_cancel(imd);
 551                 image_complete_util(imd, TRUE);
 552                 }
 553 }
 554
 555 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 556 {
 557         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 558
 559         image_read_ahead_cancel(imd);
 560
 561         imd->read_ahead_fd = file_data_ref(fd);
 562
 563         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 564
 565         image_read_ahead_start(imd);
 566 }
 567
 568 /*
 569  *-------------------------------------------------------------------
 570  * post buffering
 571  *-------------------------------------------------------------------
 572  */
 573
 574 static void image_cache_release_cb(FileData *fd)
 575 {
 576         g_object_unref(fd->pixbuf);
 577         fd->pixbuf = NULL;
 578 }
 579
 580 static FileCacheData *image_get_cache(void)
 581 {
 582         static FileCacheData *cache = NULL;
 583         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 584         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 585         return cache;
 586 }
 587
 588 static void image_cache_set(ImageWindow *imd, FileData *fd)
 589 {
 590         g_assert(fd->pixbuf);
 591
 592         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 593         file_data_send_notification(fd, NOTIFY_PIXBUF); /* to update histogram */
 594 }
 595
 596 static gint image_cache_get(ImageWindow *imd)
 597 {
 598         gint success;
 599
 600         success = file_cache_get(image_get_cache(), imd->image_fd);
 601         if (success)
 602                 {
 603                 g_assert(imd->image_fd->pixbuf);
 604                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 605                 }
 606
 607 //      file_cache_dump(image_get_cache());
 608         return success;
 609 }
 610
 611 /*
 612  *-------------------------------------------------------------------
 613  * loading
 614  *-------------------------------------------------------------------
 615  */
 616
 617 static void image_load_pixbuf_ready(ImageWindow *imd)
 618 {
 619         if (image_get_pixbuf(imd) || !imd->il) return;
 620
 621         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 622 }
 623
 624 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 625 {
 626         ImageWindow *imd = data;
 627         PixbufRenderer *pr;
 628
 629         pr = (PixbufRenderer *)imd->pr;
 630
 631         if (imd->delay_flip &&
 632             pr->pixbuf != image_loader_get_pixbuf(il))
 633                 {
 634                 return;
 635                 }
 636
 637         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 638
 639         pixbuf_renderer_area_changed(pr, x, y, w, h);
 640 }
 641
 642 static void image_load_done_cb(ImageLoader *il, gpointer data)
 643 {
 644         ImageWindow *imd = data;
 645
 646         DEBUG_1("%s image done", get_exec_time());
 647
 648         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 649                 {
 650                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
 651                 image_cache_set(imd, imd->image_fd);
 652                 }
 653         /* call the callback triggered by image_state after fd->pixbuf is set */
 654         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 655         image_state_unset(imd, IMAGE_STATE_LOADING);
 656
 657         if (!image_loader_get_pixbuf(imd->il))
 658                 {
 659                 GdkPixbuf *pixbuf;
 660
 661                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 662                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 663                 g_object_unref(pixbuf);
 664
 665                 imd->unknown = TRUE;
 666                 }
 667         else if (imd->delay_flip &&
 668             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 669                 {
 670                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 671                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 672                 }
 673
 674         image_loader_free(imd->il);
 675         imd->il = NULL;
 676
 677 //      image_post_process(imd, TRUE);
 678
 679         image_read_ahead_start(imd);
 680 }
 681
 682 static void image_load_size_cb(ImageLoader *il, guint width, guint height, gpointer data)
 683 {
 684         ImageWindow *imd = data;
 685
 686         DEBUG_1("image_load_size_cb: %dx%d", width, height);
 687         pixbuf_renderer_set_size_early((PixbufRenderer *)imd->pr, width, height);
 688 }
 689
 690 static void image_load_error_cb(ImageLoader *il, gpointer data)
 691 {
 692         DEBUG_1("%s image error", get_exec_time());
 693
 694         /* even on error handle it like it was done,
 695          * since we have a pixbuf with _something_ */
 696
 697         image_load_done_cb(il, data);
 698 }
 699
 700 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
 701 {
 702         g_assert(imd->il);
 703         if (override_old_signals)
 704                 {
 705                 /* override the old signals */
 706                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 707                 }
 708
 709         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 710         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 711         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 712         g_signal_connect(G_OBJECT(imd->il), "size_prepared", (GCallback)image_load_size_cb, imd);
 713 }
 714
 715 /* this read ahead is located here merely for the callbacks, above */
 716
 717 static gboolean image_read_ahead_check(ImageWindow *imd)
 718 {
 719         if (!imd->read_ahead_fd) return FALSE;
 720         if (imd->il) return FALSE;
 721
 722         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 723                 {
 724                 image_read_ahead_cancel(imd);
 725                 return FALSE;
 726                 }
 727
 728         if (imd->read_ahead_il)
 729                 {
 730                 imd->il = imd->read_ahead_il;
 731                 imd->read_ahead_il = NULL;
 732
 733                 image_load_set_signals(imd, TRUE);
 734
 735                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 736                 image_state_set(imd, IMAGE_STATE_LOADING);
 737
 738                 if (!imd->delay_flip)
 739                         {
 740                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 741                         }
 742
 743                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 744
 745                 file_data_unref(imd->read_ahead_fd);
 746                 imd->read_ahead_fd = NULL;
 747                 return TRUE;
 748                 }
 749         else if (imd->read_ahead_fd->pixbuf)
 750                 {
 751                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
 752
 753                 file_data_unref(imd->read_ahead_fd);
 754                 imd->read_ahead_fd = NULL;
 755
 756 //              image_post_process(imd, FALSE);
 757                 return TRUE;
 758                 }
 759
 760         image_read_ahead_cancel(imd);
 761         return FALSE;
 762 }
 763
 764 static gboolean image_load_begin(ImageWindow *imd, FileData *fd)
 765 {
 766         DEBUG_1("%s image begin", get_exec_time());
 767
 768         if (imd->il) return FALSE;
 769
 770         imd->completed = FALSE;
 771         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 772
 773         if (image_cache_get(imd))
 774                 {
 775                 DEBUG_1("from cache: %s", imd->image_fd->path);
 776                 return TRUE;
 777                 }
 778
 779         if (image_read_ahead_check(imd))
 780                 {
 781                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 782                 return TRUE;
 783                 }
 784
 785         if (!imd->delay_flip && image_get_pixbuf(imd))
 786                 {
 787                 PixbufRenderer *pr;
 788
 789                 pr = PIXBUF_RENDERER(imd->pr);
 790                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 791                 pr->pixbuf = NULL;
 792                 }
 793
 794         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 795
 796         imd->il = image_loader_new(fd);
 797
 798         image_load_set_signals(imd, FALSE);
 799
 800         if (!image_loader_start(imd->il))
 801                 {
 802                 DEBUG_1("image start error");
 803
 804                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 805
 806                 image_loader_free(imd->il);
 807                 imd->il = NULL;
 808
 809                 image_complete_util(imd, FALSE);
 810
 811                 return FALSE;
 812                 }
 813
 814         image_state_set(imd, IMAGE_STATE_LOADING);
 815
 816 /*
 817         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
 818                 {
 819                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 820                 }
 821 */
 822         return TRUE;
 823 }
 824
 825 static void image_reset(ImageWindow *imd)
 826 {
 827         /* stops anything currently being done */
 828
 829         DEBUG_1("%s image reset", get_exec_time());
 830
 831         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 832
 833         image_loader_free(imd->il);
 834         imd->il = NULL;
 835
 836         color_man_free((ColorMan *)imd->cm);
 837         imd->cm = NULL;
 838
 839         imd->delay_alter_type = ALTER_NONE;
 840
 841         image_state_set(imd, IMAGE_STATE_NONE);
 842 }
 843
 844 /*
 845  *-------------------------------------------------------------------
 846  * image changer
 847  *-------------------------------------------------------------------
 848  */
 849
 850 static void image_change_complete(ImageWindow *imd, gdouble zoom)
 851 {
 852         image_reset(imd);
 853         imd->unknown = TRUE;
 854
 855         if (!imd->image_fd)
 856                 {
 857                 image_change_pixbuf(imd, NULL, zoom, FALSE);
 858                 }
 859         else
 860                 {
 861
 862                 if (is_readable_file(imd->image_fd->path))
 863                         {
 864                         PixbufRenderer *pr;
 865
 866                         pr = PIXBUF_RENDERER(imd->pr);
 867                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
 868
 869                         if (image_load_begin(imd, imd->image_fd))
 870                                 {
 871                                 imd->unknown = FALSE;
 872                                 }
 873                         }
 874
 875                 if (imd->unknown == TRUE)
 876                         {
 877                         GdkPixbuf *pixbuf;
 878
 879                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 880                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 881                         g_object_unref(pixbuf);
 882                         }
 883                 }
 884
 885         image_update_util(imd);
 886 }
 887
 888 static void image_change_real(ImageWindow *imd, FileData *fd,
 889                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 890 {
 891
 892         imd->collection = cd;
 893         imd->collection_info = info;
 894
 895         if (imd->auto_refresh && imd->image_fd)
 896                 file_data_unregister_real_time_monitor(imd->image_fd);
 897
 898         file_data_unref(imd->image_fd);
 899         imd->image_fd = file_data_ref(fd);
 900
 901
 902         image_change_complete(imd, zoom);
 903
 904         image_update_title(imd);
 905         image_state_set(imd, IMAGE_STATE_IMAGE);
 906
 907         if (imd->auto_refresh && imd->image_fd)
 908                 file_data_register_real_time_monitor(imd->image_fd);
 909 }
 910
 911 /*
 912  *-------------------------------------------------------------------
 913  * focus stuff
 914  *-------------------------------------------------------------------
 915  */
 916
 917 static gboolean image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 918 {
 919         ImageWindow *imd = data;
 920
 921         if (imd->func_focus_in)
 922                 {
 923                 imd->func_focus_in(imd, imd->data_focus_in);
 924                 }
 925
 926         return TRUE;
 927 }
 928
 929 static gboolean image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 930 {
 931         ImageWindow *imd = data;
 932
 933         if (imd->func_scroll &&
 934             event && event->type == GDK_SCROLL)
 935                 {
 936                 imd->func_scroll(imd, event, imd->data_scroll);
 937                 return TRUE;
 938                 }
 939
 940         return FALSE;
 941 }
 942
 943 /*
 944  *-------------------------------------------------------------------
 945  * public interface
 946  *-------------------------------------------------------------------
 947  */
 948
 949 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 950                          const gchar *title, const gchar *title_right, gboolean show_zoom)
 951 {
 952         imd->top_window = window;
 953         g_free(imd->title);
 954         imd->title = g_strdup(title);
 955         g_free(imd->title_right);
 956         imd->title_right = g_strdup(title_right);
 957         imd->title_show_zoom = show_zoom;
 958
 959         if (!options->image.fit_window_to_image) window = NULL;
 960
 961         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 962
 963         image_update_title(imd);
 964 }
 965
 966 void image_set_update_func(ImageWindow *imd,
 967                            void (*func)(ImageWindow *imd, gpointer data),
 968                            gpointer data)
 969 {
 970         imd->func_update = func;
 971         imd->data_update = data;
 972 }
 973
 974 void image_set_complete_func(ImageWindow *imd,
 975                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
 976                              gpointer data)
 977 {
 978         imd->func_complete = func;
 979         imd->data_complete = data;
 980 }
 981
 982 void image_set_state_func(ImageWindow *imd,
 983                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 984                         gpointer data)
 985 {
 986         imd->func_state = func;
 987         imd->data_state = data;
 988 }
 989
 990
 991 void image_set_button_func(ImageWindow *imd,
 992                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
 993                            gpointer data)
 994 {
 995         imd->func_button = func;
 996         imd->data_button = data;
 997 }
 998
 999 void image_set_drag_func(ImageWindow *imd,
1000                            void (*func)(ImageWindow *, GdkEventMotion *event, gdouble dx, gdouble dy, gpointer),
1001                            gpointer data)
1002 {
1003         imd->func_drag = func;
1004         imd->data_drag = data;
1005 }
1006
1007 void image_set_scroll_func(ImageWindow *imd,
1008                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
1009                            gpointer data)
1010 {
1011         imd->func_scroll = func;
1012         imd->data_scroll = data;
1013 }
1014
1015 void image_set_scroll_notify_func(ImageWindow *imd,
1016                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
1017                                   gpointer data)
1018 {
1019         imd->func_scroll_notify = func;
1020         imd->data_scroll_notify = data;
1021 }
1022
1023 void image_set_focus_in_func(ImageWindow *imd,
1024                            void (*func)(ImageWindow *, gpointer),
1025                            gpointer data)
1026 {
1027         imd->func_focus_in = func;
1028         imd->data_focus_in = data;
1029 }
1030
1031 /* path, name */
1032
1033 const gchar *image_get_path(ImageWindow *imd)
1034 {
1035         if (imd->image_fd == NULL) return NULL;
1036         return imd->image_fd->path;
1037 }
1038
1039 const gchar *image_get_name(ImageWindow *imd)
1040 {
1041         if (imd->image_fd == NULL) return NULL;
1042         return imd->image_fd->name;
1043 }
1044
1045 FileData *image_get_fd(ImageWindow *imd)
1046 {
1047         return imd->image_fd;
1048 }
1049
1050 /* merely changes path string, does not change the image! */
1051 void image_set_fd(ImageWindow *imd, FileData *fd)
1052 {
1053         if (imd->auto_refresh && imd->image_fd)
1054                 file_data_unregister_real_time_monitor(imd->image_fd);
1055
1056         file_data_unref(imd->image_fd);
1057         imd->image_fd = file_data_ref(fd);
1058
1059         image_update_title(imd);
1060         image_state_set(imd, IMAGE_STATE_IMAGE);
1061
1062         if (imd->auto_refresh && imd->image_fd)
1063                 file_data_register_real_time_monitor(imd->image_fd);
1064 }
1065
1066 /* load a new image */
1067
1068 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1069 {
1070         if (imd->image_fd == fd) return;
1071
1072         image_change_real(imd, fd, NULL, NULL, zoom);
1073 }
1074
1075 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1076 {
1077         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1078 }
1079
1080 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1081 {
1082         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1083 }
1084
1085 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1086 {
1087         StereoPixbufData stereo_data = STEREO_PIXBUF_DEFAULT;
1088         /* read_exif and similar functions can actually notice that the file has changed and trigger
1089            a notification that removes the pixbuf from cache and unrefs it. Therefore we must ref it
1090            here before it is taken over by the renderer. */
1091         if (pixbuf) g_object_ref(pixbuf);
1092
1093         imd->orientation = EXIF_ORIENTATION_TOP_LEFT;
1094         if (imd->image_fd)
1095                 {
1096                 if (imd->image_fd->user_orientation)
1097                         {
1098                         imd->orientation = imd->image_fd->user_orientation;
1099                         }
1100                 else if (options->image.exif_rotate_enable)
1101                         {
1102                         imd->orientation = metadata_read_int(imd->image_fd, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
1103                         imd->image_fd->exif_orientation = imd->orientation;
1104                         }
1105                 }
1106
1107         if (pixbuf)
1108                 {
1109                 stereo_data = imd->user_stereo;
1110                 if (stereo_data == STEREO_PIXBUF_DEFAULT)
1111                         {
1112                         stereo_data = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(pixbuf), "stereo_data"));
1113                         }
1114                 }
1115
1116         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1117         if (imd->cm)
1118                 {
1119                 color_man_free(imd->cm);
1120                 imd->cm = NULL;
1121                 }
1122
1123         if (lazy)
1124                 {
1125                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation, stereo_data);
1126                 }
1127         else
1128                 {
1129                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1130                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1131                 pixbuf_renderer_set_stereo_data((PixbufRenderer *)imd->pr, stereo_data);
1132                 }
1133
1134         if (pixbuf) g_object_unref(pixbuf);
1135
1136         if (imd->color_profile_enable)
1137                 {
1138                 image_post_process_color(imd, 0, FALSE); /* TODO: error handling */
1139                 }
1140
1141         if (imd->cm || imd->desaturate)
1142                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1143
1144         image_state_set(imd, IMAGE_STATE_IMAGE);
1145 }
1146
1147 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1148 {
1149         if (!cd || !info || !g_list_find(cd->list, info)) return;
1150
1151         image_change_real(imd, info->fd, cd, info, zoom);
1152 }
1153
1154 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1155 {
1156         if (collection_to_number(imd->collection) >= 0)
1157                 {
1158                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1159                         {
1160                         if (info) *info = imd->collection_info;
1161                         }
1162                 else
1163                         {
1164                         if (info) *info = NULL;
1165                         }
1166                 return imd->collection;
1167                 }
1168
1169         if (info) *info = NULL;
1170         return NULL;
1171 }
1172
1173 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1174 {
1175         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1176                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1177
1178         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1179                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1180 }
1181
1182 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1183 {
1184         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1185                 g_signal_connect(G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1186
1187         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1188                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1189
1190         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1191                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1192 }
1193
1194 /* this is more like a move function
1195  * it moves most data from source to imd
1196  */
1197 void image_move_from_image(ImageWindow *imd, ImageWindow *source)
1198 {
1199         if (imd == source) return;
1200
1201         imd->unknown = source->unknown;
1202
1203         imd->collection = source->collection;
1204         imd->collection_info = source->collection_info;
1205
1206         image_loader_free(imd->il);
1207         imd->il = NULL;
1208
1209         image_set_fd(imd, image_get_fd(source));
1210
1211
1212         if (source->il)
1213                 {
1214                 imd->il = source->il;
1215                 source->il = NULL;
1216
1217                 image_loader_sync_data(imd->il, source, imd);
1218
1219                 imd->delay_alter_type = source->delay_alter_type;
1220                 source->delay_alter_type = ALTER_NONE;
1221                 }
1222
1223         imd->color_profile_enable = source->color_profile_enable;
1224         imd->color_profile_input = source->color_profile_input;
1225         imd->color_profile_use_image = source->color_profile_use_image;
1226         color_man_free((ColorMan *)imd->cm);
1227         imd->cm = NULL;
1228         if (source->cm)
1229                 {
1230                 ColorMan *cm;
1231
1232                 imd->cm = source->cm;
1233                 source->cm = NULL;
1234
1235                 cm = (ColorMan *)imd->cm;
1236                 cm->imd = imd;
1237                 cm->func_done_data = imd;
1238                 }
1239
1240         file_data_unref(imd->read_ahead_fd);
1241         source->read_ahead_fd = NULL;
1242
1243         imd->orientation = source->orientation;
1244         imd->desaturate = source->desaturate;
1245
1246         imd->user_stereo = source->user_stereo;
1247
1248         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1249
1250         if (imd->cm || imd->desaturate)
1251                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1252         else
1253                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1254
1255 }
1256
1257 /* this is  a copy function
1258  * source stays unchanged
1259  */
1260 void image_copy_from_image(ImageWindow *imd, ImageWindow *source)
1261 {
1262         if (imd == source) return;
1263
1264         imd->unknown = source->unknown;
1265
1266         imd->collection = source->collection;
1267         imd->collection_info = source->collection_info;
1268
1269         image_loader_free(imd->il);
1270         imd->il = NULL;
1271
1272         image_set_fd(imd, image_get_fd(source));
1273
1274
1275         imd->color_profile_enable = source->color_profile_enable;
1276         imd->color_profile_input = source->color_profile_input;
1277         imd->color_profile_use_image = source->color_profile_use_image;
1278         color_man_free((ColorMan *)imd->cm);
1279         imd->cm = NULL;
1280         if (source->cm)
1281                 {
1282                 ColorMan *cm;
1283
1284                 imd->cm = source->cm;
1285                 source->cm = NULL;
1286
1287                 cm = (ColorMan *)imd->cm;
1288                 cm->imd = imd;
1289                 cm->func_done_data = imd;
1290                 }
1291
1292         image_loader_free(imd->read_ahead_il);
1293         imd->read_ahead_il = source->read_ahead_il;
1294         source->read_ahead_il = NULL;
1295         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1296
1297         file_data_unref(imd->read_ahead_fd);
1298         imd->read_ahead_fd = source->read_ahead_fd;
1299         source->read_ahead_fd = NULL;
1300
1301         imd->completed = source->completed;
1302         imd->state = source->state;
1303         source->state = IMAGE_STATE_NONE;
1304
1305         imd->orientation = source->orientation;
1306         imd->desaturate = source->desaturate;
1307
1308         imd->user_stereo = source->user_stereo;
1309
1310         pixbuf_renderer_copy(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1311
1312         if (imd->cm || imd->desaturate)
1313                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1314         else
1315                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1316
1317 }
1318
1319
1320 /* manipulation */
1321
1322 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1323 {
1324         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1325 }
1326
1327 void image_reload(ImageWindow *imd)
1328 {
1329         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1330
1331         image_change_complete(imd, image_zoom_get(imd));
1332 }
1333
1334 void image_scroll(ImageWindow *imd, gint x, gint y)
1335 {
1336         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1337 }
1338
1339 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1340                            gdouble x_align, gdouble y_align)
1341 {
1342         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1343 }
1344
1345 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1346 {
1347         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1348 }
1349
1350 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1351 {
1352         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1353 }
1354
1355 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1356 {
1357         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1358 }
1359
1360 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1361 {
1362         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1363 }
1364
1365 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1366 {
1367         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1368 }
1369
1370 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1371 {
1372         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1373 }
1374
1375 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1376 {
1377         PixbufRenderer *pr;
1378         gdouble zoom;
1379         gint width, height;
1380
1381         pr = (PixbufRenderer *)imd->pr;
1382
1383         if (!pixbuf_renderer_get_pixbuf(pr) ||
1384             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1385
1386         if (vertical)
1387                 {
1388                 zoom = (gdouble)pr->viewport_height / height;
1389                 }
1390         else
1391                 {
1392                 zoom = (gdouble)pr->viewport_width / width;
1393                 }
1394
1395         if (zoom < 1.0)
1396                 {
1397                 zoom = 0.0 - 1.0 / zoom;
1398                 }
1399
1400         pixbuf_renderer_zoom_set(pr, zoom);
1401 }
1402
1403 gdouble image_zoom_get(ImageWindow *imd)
1404 {
1405         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1406 }
1407
1408 gdouble image_zoom_get_real(ImageWindow *imd)
1409 {
1410         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1411 }
1412
1413 gchar *image_zoom_get_as_text(ImageWindow *imd)
1414 {
1415         gdouble zoom;
1416         gdouble scale;
1417         gdouble l = 1.0;
1418         gdouble r = 1.0;
1419         gint pl = 0;
1420         gint pr = 0;
1421         gchar *approx = " ";
1422
1423         zoom = image_zoom_get(imd);
1424         scale = image_zoom_get_real(imd);
1425
1426         if (zoom > 0.0)
1427                 {
1428                 l = zoom;
1429                 }
1430         else if (zoom < 0.0)
1431                 {
1432                 r = 0.0 - zoom;
1433                 }
1434         else if (zoom == 0.0 && scale != 0.0)
1435                 {
1436                 if (scale >= 1.0)
1437                         {
1438                         l = scale;
1439                         }
1440                 else
1441                         {
1442                         r = 1.0 / scale;
1443                         }
1444                 approx = "~";
1445                 }
1446
1447         if (rint(l) != l) pl = 2;
1448         if (rint(r) != r) pr = 2;
1449
1450         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1451 }
1452
1453 gdouble image_zoom_get_default(ImageWindow *imd)
1454 {
1455         gdouble zoom = 1.0;
1456
1457         switch (options->image.zoom_mode)
1458         {
1459         case ZOOM_RESET_ORIGINAL:
1460                 break;
1461         case ZOOM_RESET_FIT_WINDOW:
1462                 zoom = 0.0;
1463                 break;
1464         case ZOOM_RESET_NONE:
1465                 if (imd) zoom = image_zoom_get(imd);
1466                 break;
1467         }
1468
1469         return zoom;
1470 }
1471
1472 /* stereo */
1473 gint image_stereo_get(ImageWindow *imd)
1474 {
1475         return pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1476 }
1477
1478 void image_stereo_set(ImageWindow *imd, gint stereo_mode)
1479 {
1480         DEBUG_1("Setting stereo mode %04x for imd %p", stereo_mode, imd);
1481         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1482 }
1483
1484 void image_stereo_swap(ImageWindow *imd)
1485 {
1486         gint stereo_mode = pixbuf_renderer_stereo_get((PixbufRenderer *)imd->pr);
1487         stereo_mode ^= PR_STEREO_SWAP;
1488         pixbuf_renderer_stereo_set((PixbufRenderer *)imd->pr, stereo_mode);
1489 }
1490
1491 StereoPixbufData image_stereo_pixbuf_get(ImageWindow *imd)
1492 {
1493         return imd->user_stereo;
1494 }
1495
1496 void image_stereo_pixbuf_set(ImageWindow *imd, StereoPixbufData stereo_mode)
1497 {
1498         imd->user_stereo = stereo_mode;
1499         image_reload(imd);
1500 }
1501
1502 /* read ahead */
1503
1504 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1505 {
1506         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1507
1508         if (fd)
1509                 {
1510                 if (!file_cache_get(image_get_cache(), fd))
1511                         {
1512                         image_read_ahead_set(imd, fd);
1513                         }
1514                 }
1515         else
1516                 {
1517                 image_read_ahead_cancel(imd);
1518                 }
1519 }
1520
1521 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1522 {
1523         ImageWindow *imd = data;
1524
1525         if (!imd || !image_get_pixbuf(imd) ||
1526             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1527             !imd->image_fd || /* nothing to reload */
1528             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1529             ) return;
1530
1531         if ((type & NOTIFY_REREAD) && fd == imd->image_fd)
1532                 {
1533                 /* there is no need to reload on NOTIFY_CHANGE,
1534                    modified files should be detacted anyway and NOTIFY_REREAD should be recieved
1535                    or they are removed from the filelist completely on "move" and "delete"
1536                 */
1537                 DEBUG_1("Notify image: %s %04x", fd->path, type);
1538                 image_reload(imd);
1539                 }
1540 }
1541
1542 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1543 {
1544         if (!enable && imd->auto_refresh && imd->image_fd)
1545                 file_data_unregister_real_time_monitor(imd->image_fd);
1546
1547         if (enable && !imd->auto_refresh && imd->image_fd)
1548                 file_data_register_real_time_monitor(imd->image_fd);
1549
1550         imd->auto_refresh = enable;
1551 }
1552
1553 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1554 {
1555         imd->top_window_sync = allow_sync;
1556
1557         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1558 }
1559
1560 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1561 {
1562         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1563 }
1564
1565 void image_background_set_color_from_options(ImageWindow *imd, gboolean fullscreen)
1566 {
1567         GdkColor *color = NULL;
1568
1569         if ((options->image.use_custom_border_color && !fullscreen) ||
1570             (options->image.use_custom_border_color_in_fullscreen && fullscreen))
1571                 {
1572                 color = &options->image.border_color;
1573                 }
1574
1575         image_background_set_color(imd, color);
1576 }
1577
1578 void image_color_profile_set(ImageWindow *imd,
1579                              gint input_type,
1580                              gboolean use_image)
1581 {
1582         if (!imd) return;
1583
1584         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
1585                 {
1586                 return;
1587                 }
1588
1589         imd->color_profile_input = input_type;
1590         imd->color_profile_use_image = use_image;
1591 }
1592
1593 gboolean image_color_profile_get(ImageWindow *imd,
1594                                  gint *input_type,
1595                                  gboolean *use_image)
1596 {
1597         if (!imd) return FALSE;
1598
1599         if (input_type) *input_type = imd->color_profile_input;
1600         if (use_image) *use_image = imd->color_profile_use_image;
1601
1602         return TRUE;
1603 }
1604
1605 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1606 {
1607         if (!imd) return;
1608
1609         if (imd->color_profile_enable == enable) return;
1610
1611         imd->color_profile_enable = enable;
1612 }
1613
1614 gboolean image_color_profile_get_use(ImageWindow *imd)
1615 {
1616         if (!imd) return FALSE;
1617
1618         return imd->color_profile_enable;
1619 }
1620
1621 gboolean image_color_profile_get_status(ImageWindow *imd, gchar **image_profile, gchar **screen_profile)
1622 {
1623         ColorMan *cm;
1624         if (!imd) return FALSE;
1625
1626         cm = imd->cm;
1627         if (!cm) return FALSE;
1628         return color_man_get_status(cm, image_profile, screen_profile);
1629
1630 }
1631
1632 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1633 {
1634         if (!imd ||
1635             imd->delay_flip == delay) return;
1636
1637         imd->delay_flip = delay;
1638
1639         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1640
1641         if (!imd->delay_flip && imd->il)
1642                 {
1643                 PixbufRenderer *pr;
1644
1645                 pr = PIXBUF_RENDERER(imd->pr);
1646                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1647                 pr->pixbuf = NULL;
1648
1649                 image_load_pixbuf_ready(imd);
1650                 }
1651 }
1652
1653 void image_to_root_window(ImageWindow *imd, gboolean scaled)
1654 {
1655 #if !GTK_CHECK_VERSION(3,0,0)
1656         GdkScreen *screen;
1657         GdkWindow *rootwindow;
1658         GdkPixmap *pixmap;
1659         GdkPixbuf *pixbuf;
1660         GdkPixbuf *pb;
1661         gint width, height;
1662
1663         if (!imd) return;
1664
1665         pixbuf = image_get_pixbuf(imd);
1666         if (!pixbuf) return;
1667
1668         screen = gtk_widget_get_screen(imd->widget);
1669         rootwindow = gdk_screen_get_root_window(screen);
1670         if (gdk_window_get_visual(rootwindow) != gdk_visual_get_system()) return;
1671
1672         if (scaled)
1673                 {
1674                 width = gdk_screen_width();
1675                 height = gdk_screen_height();
1676                 }
1677         else
1678                 {
1679                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1680                 }
1681
1682         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1683
1684         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1685         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1686         gdk_window_clear(rootwindow);
1687         g_object_unref(pb);
1688         g_object_unref(pixmap);
1689
1690         gdk_flush();
1691 #endif
1692 }
1693
1694 void image_select(ImageWindow *imd, gboolean select)
1695 {
1696         if (!imd->has_frame) return;
1697
1698         if (select)
1699                 {
1700                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1701                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1702                 }
1703         else
1704                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1705 }
1706
1707 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1708 {
1709         if (!imd->has_frame) return;
1710
1711         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1712         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
1713 }
1714
1715 void image_grab_focus(ImageWindow *imd)
1716 {
1717         if (imd->has_frame)
1718                 {
1719                 gtk_widget_grab_focus(imd->frame);
1720                 }
1721         else
1722                 {
1723                 gtk_widget_grab_focus(imd->widget);
1724                 }
1725 }
1726
1727
1728 /*
1729  *-------------------------------------------------------------------
1730  * prefs sync
1731  *-------------------------------------------------------------------
1732  */
1733
1734 static void image_options_set(ImageWindow *imd)
1735 {
1736         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1737                                         "zoom_2pass", options->image.zoom_2pass,
1738                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1739                                         "scroll_reset", options->image.scroll_reset_method,
1740                                         "cache_display", options->image.tile_cache_max,
1741                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1742                                         "window_limit", options->image.limit_window_size,
1743                                         "window_limit_value", options->image.max_window_size,
1744                                         "autofit_limit", options->image.limit_autofit_size,
1745                                         "autofit_limit_value", options->image.max_autofit_size,
1746                                         "enlargement_limit_value", options->image.max_enlargement_size,
1747
1748                                         NULL);
1749
1750         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1751
1752         image_stereo_set(imd, options->stereo.mode);
1753         pixbuf_renderer_stereo_fixed_set((PixbufRenderer *)imd->pr,
1754                                         options->stereo.fixed_w, options->stereo.fixed_h,
1755                                         options->stereo.fixed_x1, options->stereo.fixed_y1,
1756                                         options->stereo.fixed_x2, options->stereo.fixed_y2);
1757 }
1758
1759 void image_options_sync(void)
1760 {
1761         GList *work;
1762
1763         work = image_list;
1764         while (work)
1765                 {
1766                 ImageWindow *imd;
1767
1768                 imd = work->data;
1769                 work = work->next;
1770
1771                 image_options_set(imd);
1772                 }
1773 }
1774
1775 /*
1776  *-------------------------------------------------------------------
1777  * init / destroy
1778  *-------------------------------------------------------------------
1779  */
1780
1781 static void image_free(ImageWindow *imd)
1782 {
1783         image_list = g_list_remove(image_list, imd);
1784
1785         if (imd->auto_refresh && imd->image_fd)
1786                 file_data_unregister_real_time_monitor(imd->image_fd);
1787
1788         file_data_unregister_notify_func(image_notify_cb, imd);
1789
1790         image_reset(imd);
1791
1792         image_read_ahead_cancel(imd);
1793
1794         file_data_unref(imd->image_fd);
1795         g_free(imd->title);
1796         g_free(imd->title_right);
1797         g_free(imd);
1798 }
1799
1800 static void image_destroy_cb(GtkWidget *widget, gpointer data)
1801 {
1802         ImageWindow *imd = data;
1803         image_free(imd);
1804 }
1805 #if GTK_CHECK_VERSION(3,0,0)
1806 gboolean selectable_frame_draw_cb(GtkWidget *widget, cairo_t *cr, gpointer data)
1807 {
1808         GtkAllocation allocation;
1809         gtk_widget_get_allocation(widget, &allocation);
1810         gtk_paint_flat_box(gtk_widget_get_style(widget),
1811                            cr,
1812                            gtk_widget_get_state(widget),
1813                            gtk_frame_get_shadow_type(GTK_FRAME(widget)),
1814                            widget,
1815                            NULL,
1816                            allocation.x + 3, allocation.y + 3,
1817                            allocation.width - 6, allocation.height - 6);
1818
1819         if (gtk_widget_has_focus(widget))
1820                 {
1821                 gtk_paint_focus(gtk_widget_get_style(widget), cr, GTK_STATE_ACTIVE,
1822                                 widget, "image_window",
1823                                 allocation.x, allocation.y,
1824                                 allocation.width - 1, allocation.height - 1);
1825                 }
1826         else
1827                 {
1828                 gtk_paint_shadow(gtk_widget_get_style(widget), cr, GTK_STATE_NORMAL, GTK_SHADOW_IN,
1829                                  widget, "image_window",
1830                                  allocation.x, allocation.y,
1831                                  allocation.width - 1, allocation.height - 1);
1832                 }
1833         return FALSE;
1834 }
1835
1836 #else
1837 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1838 {
1839         GtkAllocation allocation;
1840         gtk_widget_get_allocation(widget, &allocation);
1841         gtk_paint_flat_box(gtk_widget_get_style(widget),
1842                            gtk_widget_get_window(widget),
1843                            gtk_widget_get_state(widget),
1844                            gtk_frame_get_shadow_type(GTK_FRAME(widget)),
1845                            NULL,
1846                            widget,
1847                            NULL,
1848                            allocation.x + 3, allocation.y + 3,
1849                            allocation.width - 6, allocation.height - 6);
1850
1851         if (gtk_widget_has_focus(widget))
1852                 {
1853                 gtk_paint_focus(gtk_widget_get_style(widget), gtk_widget_get_window(widget), GTK_STATE_ACTIVE,
1854                                 &event->area, widget, "image_window",
1855                                 allocation.x, allocation.y,
1856                                 allocation.width - 1, allocation.height - 1);
1857                 }
1858         else
1859                 {
1860                 gtk_paint_shadow(gtk_widget_get_style(widget), gtk_widget_get_window(widget), GTK_STATE_NORMAL, GTK_SHADOW_IN,
1861                                  &event->area, widget, "image_window",
1862                                  allocation.x, allocation.y,
1863                                  allocation.width - 1, allocation.height - 1);
1864                 }
1865         return FALSE;
1866 }
1867 #endif
1868
1869
1870 void image_set_frame(ImageWindow *imd, gboolean frame)
1871 {
1872         frame = !!frame;
1873
1874         if (frame == imd->has_frame) return;
1875
1876         gtk_widget_hide(imd->pr);
1877
1878         if (frame)
1879                 {
1880                 imd->frame = gtk_frame_new(NULL);
1881                 g_object_ref(imd->pr);
1882                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1883                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1884
1885                 g_object_unref(imd->pr);
1886                 gtk_widget_set_can_focus(imd->frame, TRUE);
1887                 gtk_widget_set_app_paintable(imd->frame, TRUE);
1888
1889 #if GTK_CHECK_VERSION(3,0,0)
1890                 g_signal_connect(G_OBJECT(imd->frame), "draw",
1891                                  G_CALLBACK(selectable_frame_draw_cb), NULL);
1892 #else
1893                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1894                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1895 #endif
1896                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1897                                  G_CALLBACK(image_focus_in_cb), imd);
1898
1899                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1900                 gtk_widget_show(imd->frame);
1901                 }
1902         else
1903                 {
1904                 g_object_ref(imd->pr);
1905                 if (imd->frame)
1906                         {
1907                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1908                         gtk_widget_destroy(imd->frame);
1909                         imd->frame = NULL;
1910                         }
1911                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1912
1913                 g_object_unref(imd->pr);
1914                 }
1915
1916         gtk_widget_show(imd->pr);
1917
1918         imd->has_frame = frame;
1919 }
1920
1921 ImageWindow *image_new(gboolean frame)
1922 {
1923         ImageWindow *imd;
1924
1925         imd = g_new0(ImageWindow, 1);
1926
1927         imd->unknown = TRUE;
1928         imd->has_frame = -1; /* not initialized; for image_set_frame */
1929         imd->delay_alter_type = ALTER_NONE;
1930         imd->state = IMAGE_STATE_NONE;
1931         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1932         imd->orientation = 1;
1933
1934         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1935
1936         image_options_set(imd);
1937
1938         imd->widget = gtk_vbox_new(0, 0);
1939
1940         image_set_frame(imd, frame);
1941
1942         image_set_selectable(imd, 0);
1943
1944         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1945                          G_CALLBACK(image_click_cb), imd);
1946         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1947                          G_CALLBACK(image_scroll_notify_cb), imd);
1948
1949         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1950                          G_CALLBACK(image_scroll_cb), imd);
1951
1952         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1953                          G_CALLBACK(image_destroy_cb), imd);
1954
1955         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1956                          G_CALLBACK(image_zoom_cb), imd);
1957         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1958                          G_CALLBACK(image_render_complete_cb), imd);
1959         g_signal_connect(G_OBJECT(imd->pr), "drag",
1960                          G_CALLBACK(image_drag_cb), imd);
1961
1962         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1963
1964         image_list = g_list_append(image_list, imd);
1965
1966         return imd;
1967 }
1968 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */