src/image.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2009 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  *
   8  * This software is released under the GNU General Public License (GNU GPL).
   9  * Please read the included file COPYING for more information.
  10  * This software comes with no warranty of any kind, use at your own risk!
  11  */
  12
  13
  14 #include "main.h"
  15 #include "image.h"
  16
  17
  18 #include "collect.h"
  19 #include "color-man.h"
  20 #include "exif.h"
  21 #include "metadata.h"
  22 #include "histogram.h"
  23 #include "image-load.h"
  24 #include "image-overlay.h"
  25 #include "layout.h"
  26 #include "layout_image.h"
  27 #include "pixbuf-renderer.h"
  28 #include "pixbuf_util.h"
  29 #include "ui_fileops.h"
  30
  31 #include "filedata.h"
  32 #include "filecache.h"
  33
  34 #include <math.h>
  35
  36 static GList *image_list = NULL;
  37
  38 static void image_update_title(ImageWindow *imd);
  39 static void image_read_ahead_start(ImageWindow *imd);
  40 static void image_cache_set(ImageWindow *imd, FileData *fd);
  41
  42 /*
  43  *-------------------------------------------------------------------
  44  * 'signals'
  45  *-------------------------------------------------------------------
  46  */
  47
  48 static void image_click_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  49 {
  50         ImageWindow *imd = data;
  51
  52         if (imd->func_button)
  53                 {
  54                 imd->func_button(imd, event, imd->data_button);
  55                 }
  56 }
  57
  58 static void image_drag_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  59 {
  60         ImageWindow *imd = data;
  61         gint width, height;
  62
  63         pixbuf_renderer_get_scaled_size(pr, &width, &height);
  64
  65         if (imd->func_drag)
  66                 {
  67                 imd->func_drag(imd, event,
  68                                (gfloat)(pr->drag_last_x - event->x) / width,
  69                                (gfloat)(pr->drag_last_y - event->y) / height,
  70                                imd->data_button);
  71                 }
  72 }
  73
  74 static void image_scroll_notify_cb(PixbufRenderer *pr, gpointer data)
  75 {
  76         ImageWindow *imd = data;
  77
  78         if (imd->func_scroll_notify && pr->scale)
  79                 {
  80                 imd->func_scroll_notify(imd,
  81                                         (gint)((gdouble)pr->x_scroll / pr->scale),
  82                                         (gint)((gdouble)pr->y_scroll / pr->scale),
  83                                         (gint)((gdouble)pr->image_width - pr->vis_width / pr->scale),
  84                                         (gint)((gdouble)pr->image_height - pr->vis_height / pr->scale),
  85                                         imd->data_scroll_notify);
  86                 }
  87 }
  88
  89 static void image_update_util(ImageWindow *imd)
  90 {
  91         if (imd->func_update) imd->func_update(imd, imd->data_update);
  92 }
  93
  94 static void image_zoom_cb(PixbufRenderer *pr, gdouble zoom, gpointer data)
  95 {
  96         ImageWindow *imd = data;
  97
  98         if (imd->title_show_zoom) image_update_title(imd);
  99         if (imd->overlay_show_zoom) image_osd_update(imd);
 100
 101         image_update_util(imd);
 102 }
 103
 104 static void image_complete_util(ImageWindow *imd, gboolean preload)
 105 {
 106         if (imd->il && image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il)) return;
 107
 108         DEBUG_1("%s image load completed \"%s\" (%s)", get_exec_time(),
 109                           (preload) ? (imd->read_ahead_fd ? imd->read_ahead_fd->path : "null") :
 110                                       (imd->image_fd ? imd->image_fd->path : "null"),
 111                           (preload) ? "preload" : "current");
 112
 113         if (!preload) imd->completed = TRUE;
 114         if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
 115 }
 116
 117 static void image_render_complete_cb(PixbufRenderer *pr, gpointer data)
 118 {
 119         ImageWindow *imd = data;
 120
 121         image_complete_util(imd, FALSE);
 122 }
 123
 124 static void image_state_set(ImageWindow *imd, ImageState state)
 125 {
 126         if (state == IMAGE_STATE_NONE)
 127                 {
 128                 imd->state = state;
 129                 }
 130         else
 131                 {
 132                 imd->state |= state;
 133                 }
 134         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 135 }
 136
 137 static void image_state_unset(ImageWindow *imd, ImageState state)
 138 {
 139         imd->state &= ~state;
 140         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 141 }
 142
 143 /*
 144  *-------------------------------------------------------------------
 145  * misc
 146  *-------------------------------------------------------------------
 147  */
 148
 149 static void image_update_title(ImageWindow *imd)
 150 {
 151         gchar *title = NULL;
 152         gchar *zoom = NULL;
 153         gchar *collection = NULL;
 154
 155         if (!imd->top_window) return;
 156
 157         if (imd->collection && collection_to_number(imd->collection) >= 0)
 158                 {
 159                 const gchar *name = imd->collection->name;
 160                 if (!name) name = _("Untitled");
 161                 collection = g_strdup_printf(_(" (Collection %s)"), name);
 162                 }
 163
 164         if (imd->title_show_zoom)
 165                 {
 166                 gchar *buf = image_zoom_get_as_text(imd);
 167                 zoom = g_strconcat(" [", buf, "]", NULL);
 168                 g_free(buf);
 169                 }
 170
 171         title = g_strdup_printf("%s%s%s%s%s%s",
 172                 imd->title ? imd->title : "",
 173                 imd->image_fd ? imd->image_fd->name : "",
 174                 zoom ? zoom : "",
 175                 collection ? collection : "",
 176                 imd->image_fd ? " - " : "",
 177                 imd->title_right ? imd->title_right : "");
 178
 179         gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
 180
 181         g_free(title);
 182         g_free(zoom);
 183         g_free(collection);
 184 }
 185
 186 /*
 187  *-------------------------------------------------------------------
 188  * rotation, flip, etc.
 189  *-------------------------------------------------------------------
 190  */
 191 static gboolean image_get_x11_screen_profile(ImageWindow *imd, guchar **screen_profile, gint *screen_profile_len)
 192 {
 193         GdkScreen *screen = gtk_widget_get_screen(imd->widget);;
 194         GdkAtom    type   = GDK_NONE;
 195         gint       format = 0;
 196
 197         return (gdk_property_get(gdk_screen_get_root_window(screen),
 198                                  gdk_atom_intern ("_ICC_PROFILE", FALSE),
 199                                  GDK_NONE,
 200                                  0, 64 * 1024 * 1024, FALSE,
 201                                  &type, &format, screen_profile_len, screen_profile) && *screen_profile_len > 0);
 202 }
 203
 204 static gboolean image_post_process_color(ImageWindow *imd, gint start_row, gboolean run_in_bg)
 205 {
 206         ColorMan *cm;
 207         ColorManProfileType input_type;
 208         ColorManProfileType screen_type;
 209         const gchar *input_file = NULL;
 210         const gchar *screen_file = NULL;
 211         guchar *profile = NULL;
 212         guint profile_len;
 213         guchar *screen_profile = NULL;
 214         gint screen_profile_len;
 215         ExifData *exif;
 216
 217         if (imd->cm) return FALSE;
 218
 219         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
 220             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
 221                 {
 222                 const gchar *file = options->color_profile.input_file[imd->color_profile_input - COLOR_PROFILE_FILE];
 223
 224                 if (!is_readable_file(file)) return FALSE;
 225
 226                 input_type = COLOR_PROFILE_FILE;
 227                 input_file = file;
 228                 }
 229         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
 230                  imd->color_profile_input <  COLOR_PROFILE_FILE)
 231                 {
 232                 input_type = imd->color_profile_input;
 233                 input_file = NULL;
 234                 }
 235         else
 236                 {
 237                 return FALSE;
 238                 }
 239
 240         if (options->color_profile.use_x11_screen_profile &&
 241             image_get_x11_screen_profile(imd, &screen_profile, &screen_profile_len))
 242                 {
 243                 screen_type = COLOR_PROFILE_MEM;
 244                 DEBUG_1("Using X11 screen profile, length: %d", screen_profile_len);
 245                 }
 246         else if (options->color_profile.screen_file &&
 247             is_readable_file(options->color_profile.screen_file))
 248                 {
 249                 screen_type = COLOR_PROFILE_FILE;
 250                 screen_file = options->color_profile.screen_file;
 251                 }
 252         else
 253                 {
 254                 screen_type = COLOR_PROFILE_SRGB;
 255                 screen_file = NULL;
 256                 }
 257
 258
 259         imd->color_profile_from_image = COLOR_PROFILE_NONE;
 260
 261         exif = exif_read_fd(imd->image_fd);
 262
 263         if (exif)
 264                 {
 265                 profile = exif_get_color_profile(exif, &profile_len);
 266                 if (profile)
 267                         {
 268                         if (!imd->color_profile_use_image)
 269                                 {
 270                                 g_free(profile);
 271                                 profile = NULL;
 272                                 }
 273                         DEBUG_1("Found embedded color profile");
 274                         imd->color_profile_from_image = COLOR_PROFILE_MEM;
 275                         }
 276                 else
 277                         {
 278                         gchar *interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
 279
 280                         if (interop_index)
 281                                 {
 282                                 /* Exif 2.21 specification */
 283                                 if (!strcmp(interop_index, "R98"))
 284                                         {
 285                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 286                                         DEBUG_1("Found EXIF 2.21 ColorSpace of sRGB");
 287                                         }
 288                                 else if (!strcmp(interop_index, "R03"))
 289                                         {
 290                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 291                                         DEBUG_1("Found EXIF 2.21 ColorSpace of AdobeRGB");
 292                                         }
 293                                 g_free(interop_index);
 294                                 }
 295                         else
 296                                 {
 297                                 gint cs;
 298
 299                                 /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
 300                                 if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
 301                                 if (cs == 1)
 302                                         {
 303                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 304                                         DEBUG_1("Found EXIF 2.2 ColorSpace of sRGB");
 305                                         }
 306                                 else if (cs == 2)
 307                                         {
 308                                         /* non-standard way of specifying AdobeRGB (used by some software) */
 309                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 310                                         DEBUG_1("Found EXIF 2.2 ColorSpace of AdobeRGB");
 311                                         }
 312                                 }
 313
 314                         if (imd->color_profile_use_image && imd->color_profile_from_image != COLOR_PROFILE_NONE)
 315                                {
 316                                input_type = imd->color_profile_from_image;
 317                                input_file = NULL;
 318                                }
 319                         }
 320
 321                 exif_free_fd(imd->image_fd, exif);
 322                 }
 323
 324
 325         if (profile)
 326                 {
 327                 cm = color_man_new_embedded(run_in_bg ? imd : NULL, NULL,
 328                                             profile, profile_len,
 329                                             screen_type, screen_file, screen_profile, screen_profile_len);
 330                 g_free(profile);
 331                 }
 332         else
 333                 {
 334                 cm = color_man_new(run_in_bg ? imd : NULL, NULL,
 335                                    input_type, input_file,
 336                                    screen_type, screen_file, screen_profile, screen_profile_len);
 337                 }
 338
 339         if (cm)
 340                 {
 341                 if (start_row > 0)
 342                         {
 343                         cm->row = start_row;
 344                         cm->incremental_sync = TRUE;
 345                         }
 346
 347                 imd->cm = (gpointer)cm;
 348 #if 0
 349                 if (run_in_bg) color_man_start_bg(imd->cm, image_post_process_color_cb, imd);
 350 #endif
 351                 }
 352
 353         image_update_util(imd);
 354         return !!cm;
 355 }
 356
 357
 358 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 359 {
 360         ImageWindow *imd = (ImageWindow *)data;
 361         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
 362         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 363
 364 }
 365
 366 void image_alter_orientation(ImageWindow *imd, AlterType type)
 367 {
 368         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 369         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 370         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 371         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 372         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 373
 374
 375         if (!imd || !imd->pr || !imd->image_fd) return;
 376
 377         if (imd->orientation < 1 || imd->orientation > 8) imd->orientation = 1;
 378
 379         switch (type)
 380                 {
 381                 case ALTER_ROTATE_90:
 382                         imd->orientation = rotate_90[imd->orientation];
 383                         break;
 384                 case ALTER_ROTATE_90_CC:
 385                         imd->orientation = rotate_90_cc[imd->orientation];
 386                         break;
 387                 case ALTER_ROTATE_180:
 388                         imd->orientation = rotate_180[imd->orientation];
 389                         break;
 390                 case ALTER_MIRROR:
 391                         imd->orientation = mirror[imd->orientation];
 392                         break;
 393                 case ALTER_FLIP:
 394                         imd->orientation = flip[imd->orientation];
 395                         break;
 396                 case ALTER_NONE:
 397                         imd->orientation = imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1;
 398                         break;
 399                 default:
 400                         return;
 401                         break;
 402                 }
 403
 404         if (imd->orientation != imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1)
 405                 {
 406                 if (!options->metadata.write_orientation)
 407                         {
 408                         /* user_orientation does not work together with options->metadata.write_orientation,
 409                            use either one or the other.
 410                            we must however handle switching metadata.write_orientation on and off, therefore
 411                            we just disable referencing new fd's, not unreferencing the old ones
 412                         */
 413                         if (imd->image_fd->user_orientation == 0) file_data_ref(imd->image_fd);
 414                         imd->image_fd->user_orientation = imd->orientation;
 415                         }
 416                 }
 417         else
 418                 {
 419                 if (imd->image_fd->user_orientation != 0) file_data_unref(imd->image_fd);
 420                 imd->image_fd->user_orientation = 0;
 421                 }
 422
 423         if (options->metadata.write_orientation)
 424                 {
 425                 if (type == ALTER_NONE)
 426                         {
 427                         metadata_write_revert(imd->image_fd, ORIENTATION_KEY);
 428                         }
 429                 else
 430                         {
 431                         metadata_write_int(imd->image_fd, ORIENTATION_KEY, imd->orientation);
 432                         }
 433                 }
 434
 435         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 436 }
 437
 438 void image_set_desaturate(ImageWindow *imd, gboolean desaturate)
 439 {
 440         imd->desaturate = desaturate;
 441         if (imd->cm || imd->desaturate)
 442                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 443         else
 444                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 445         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 446 }
 447
 448 gboolean image_get_desaturate(ImageWindow *imd)
 449 {
 450         return imd->desaturate;
 451 }
 452
 453 /*
 454  *-------------------------------------------------------------------
 455  * read ahead (prebuffer)
 456  *-------------------------------------------------------------------
 457  */
 458
 459 static void image_read_ahead_cancel(ImageWindow *imd)
 460 {
 461         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 462
 463         image_loader_free(imd->read_ahead_il);
 464         imd->read_ahead_il = NULL;
 465
 466         file_data_unref(imd->read_ahead_fd);
 467         imd->read_ahead_fd = NULL;
 468 }
 469
 470 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 471 {
 472         ImageWindow *imd = data;
 473
 474         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 475
 476         if (!imd->read_ahead_fd->pixbuf)
 477                 {
 478                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 479                 if (imd->read_ahead_fd->pixbuf)
 480                         {
 481                         g_object_ref(imd->read_ahead_fd->pixbuf);
 482                         image_cache_set(imd, imd->read_ahead_fd);
 483                         }
 484                 }
 485         image_loader_free(imd->read_ahead_il);
 486         imd->read_ahead_il = NULL;
 487
 488         image_complete_util(imd, TRUE);
 489 }
 490
 491 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 492 {
 493         /* we even treat errors as success, maybe at least some of the file was ok */
 494         image_read_ahead_done_cb(il, data);
 495 }
 496
 497 static void image_read_ahead_start(ImageWindow *imd)
 498 {
 499         /* already started ? */
 500         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 501
 502         /* still loading ?, do later */
 503         if (imd->il /*|| imd->cm*/) return;
 504
 505         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 506
 507         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 508
 509         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 510
 511         g_signal_connect(G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 512         g_signal_connect(G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 513
 514         if (!image_loader_start(imd->read_ahead_il))
 515                 {
 516                 image_read_ahead_cancel(imd);
 517                 image_complete_util(imd, TRUE);
 518                 }
 519 }
 520
 521 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 522 {
 523         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 524
 525         image_read_ahead_cancel(imd);
 526
 527         imd->read_ahead_fd = file_data_ref(fd);
 528
 529         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 530
 531         image_read_ahead_start(imd);
 532 }
 533
 534 /*
 535  *-------------------------------------------------------------------
 536  * post buffering
 537  *-------------------------------------------------------------------
 538  */
 539
 540 static void image_cache_release_cb(FileData *fd)
 541 {
 542         g_object_unref(fd->pixbuf);
 543         fd->pixbuf = NULL;
 544 }
 545
 546 static FileCacheData *image_get_cache(void)
 547 {
 548         static FileCacheData *cache = NULL;
 549         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 550         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 551         return cache;
 552 }
 553
 554 static void image_cache_set(ImageWindow *imd, FileData *fd)
 555 {
 556         g_assert(fd->pixbuf);
 557
 558         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 559         file_data_send_notification(fd, NOTIFY_PIXBUF); /* to update histogram */
 560 }
 561
 562 static gint image_cache_get(ImageWindow *imd)
 563 {
 564         gint success;
 565
 566         success = file_cache_get(image_get_cache(), imd->image_fd);
 567         if (success)
 568                 {
 569                 g_assert(imd->image_fd->pixbuf);
 570                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 571                 }
 572
 573 //      file_cache_dump(image_get_cache());
 574         return success;
 575 }
 576
 577 /*
 578  *-------------------------------------------------------------------
 579  * loading
 580  *-------------------------------------------------------------------
 581  */
 582
 583 static void image_load_pixbuf_ready(ImageWindow *imd)
 584 {
 585         if (image_get_pixbuf(imd) || !imd->il) return;
 586
 587         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 588 }
 589
 590 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 591 {
 592         ImageWindow *imd = data;
 593         PixbufRenderer *pr;
 594
 595         pr = (PixbufRenderer *)imd->pr;
 596
 597         if (imd->delay_flip &&
 598             pr->pixbuf != image_loader_get_pixbuf(il))
 599                 {
 600                 return;
 601                 }
 602
 603         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 604
 605         pixbuf_renderer_area_changed(pr, x, y, w, h);
 606 }
 607
 608 static void image_load_done_cb(ImageLoader *il, gpointer data)
 609 {
 610         ImageWindow *imd = data;
 611
 612         DEBUG_1("%s image done", get_exec_time());
 613
 614         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 615                 {
 616                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
 617                 image_cache_set(imd, imd->image_fd);
 618                 }
 619         /* call the callback triggered by image_state after fd->pixbuf is set */
 620         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 621         image_state_unset(imd, IMAGE_STATE_LOADING);
 622
 623         if (!image_loader_get_pixbuf(imd->il))
 624                 {
 625                 GdkPixbuf *pixbuf;
 626
 627                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 628                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 629                 g_object_unref(pixbuf);
 630
 631                 imd->unknown = TRUE;
 632                 }
 633         else if (imd->delay_flip &&
 634             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 635                 {
 636                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 637                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 638                 }
 639
 640         image_loader_free(imd->il);
 641         imd->il = NULL;
 642
 643 //      image_post_process(imd, TRUE);
 644
 645         image_read_ahead_start(imd);
 646 }
 647
 648 static void image_load_error_cb(ImageLoader *il, gpointer data)
 649 {
 650         DEBUG_1("%s image error", get_exec_time());
 651
 652         /* even on error handle it like it was done,
 653          * since we have a pixbuf with _something_ */
 654
 655         image_load_done_cb(il, data);
 656 }
 657
 658 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
 659 {
 660         g_assert(imd->il);
 661         if (override_old_signals)
 662                 {
 663                 /* override the old signals */
 664                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 665                 }
 666
 667         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 668         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 669         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 670 }
 671
 672 /* this read ahead is located here merely for the callbacks, above */
 673
 674 static gboolean image_read_ahead_check(ImageWindow *imd)
 675 {
 676         if (!imd->read_ahead_fd) return FALSE;
 677         if (imd->il) return FALSE;
 678
 679         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 680                 {
 681                 image_read_ahead_cancel(imd);
 682                 return FALSE;
 683                 }
 684
 685         if (imd->read_ahead_il)
 686                 {
 687                 imd->il = imd->read_ahead_il;
 688                 imd->read_ahead_il = NULL;
 689
 690                 image_load_set_signals(imd, TRUE);
 691
 692                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 693                 image_state_set(imd, IMAGE_STATE_LOADING);
 694
 695                 if (!imd->delay_flip)
 696                         {
 697                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 698                         }
 699
 700                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 701
 702                 file_data_unref(imd->read_ahead_fd);
 703                 imd->read_ahead_fd = NULL;
 704                 return TRUE;
 705                 }
 706         else if (imd->read_ahead_fd->pixbuf)
 707                 {
 708                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
 709
 710                 file_data_unref(imd->read_ahead_fd);
 711                 imd->read_ahead_fd = NULL;
 712
 713 //              image_post_process(imd, FALSE);
 714                 return TRUE;
 715                 }
 716
 717         image_read_ahead_cancel(imd);
 718         return FALSE;
 719 }
 720
 721 static gboolean image_load_begin(ImageWindow *imd, FileData *fd)
 722 {
 723         DEBUG_1("%s image begin", get_exec_time());
 724
 725         if (imd->il) return FALSE;
 726
 727         imd->completed = FALSE;
 728         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 729
 730         if (image_cache_get(imd))
 731                 {
 732                 DEBUG_1("from cache: %s", imd->image_fd->path);
 733                 return TRUE;
 734                 }
 735
 736         if (image_read_ahead_check(imd))
 737                 {
 738                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 739                 return TRUE;
 740                 }
 741
 742         if (!imd->delay_flip && image_get_pixbuf(imd))
 743                 {
 744                 PixbufRenderer *pr;
 745
 746                 pr = PIXBUF_RENDERER(imd->pr);
 747                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 748                 pr->pixbuf = NULL;
 749                 }
 750
 751         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 752
 753         imd->il = image_loader_new(fd);
 754
 755         image_load_set_signals(imd, FALSE);
 756
 757         if (!image_loader_start(imd->il))
 758                 {
 759                 DEBUG_1("image start error");
 760
 761                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 762
 763                 image_loader_free(imd->il);
 764                 imd->il = NULL;
 765
 766                 image_complete_util(imd, FALSE);
 767
 768                 return FALSE;
 769                 }
 770
 771         image_state_set(imd, IMAGE_STATE_LOADING);
 772
 773 /*
 774         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
 775                 {
 776                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 777                 }
 778 */
 779         return TRUE;
 780 }
 781
 782 static void image_reset(ImageWindow *imd)
 783 {
 784         /* stops anything currently being done */
 785
 786         DEBUG_1("%s image reset", get_exec_time());
 787
 788         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 789
 790         image_loader_free(imd->il);
 791         imd->il = NULL;
 792
 793         color_man_free((ColorMan *)imd->cm);
 794         imd->cm = NULL;
 795
 796         imd->delay_alter_type = ALTER_NONE;
 797
 798         image_state_set(imd, IMAGE_STATE_NONE);
 799 }
 800
 801 /*
 802  *-------------------------------------------------------------------
 803  * image changer
 804  *-------------------------------------------------------------------
 805  */
 806
 807 static void image_change_complete(ImageWindow *imd, gdouble zoom)
 808 {
 809         image_reset(imd);
 810         imd->unknown = TRUE;
 811
 812         if (!imd->image_fd)
 813                 {
 814                 image_change_pixbuf(imd, NULL, zoom, FALSE);
 815                 }
 816         else
 817                 {
 818
 819                 if (is_readable_file(imd->image_fd->path))
 820                         {
 821                         PixbufRenderer *pr;
 822
 823                         pr = PIXBUF_RENDERER(imd->pr);
 824                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
 825
 826                         if (image_load_begin(imd, imd->image_fd))
 827                                 {
 828                                 imd->unknown = FALSE;
 829                                 }
 830                         }
 831
 832                 if (imd->unknown == TRUE)
 833                         {
 834                         GdkPixbuf *pixbuf;
 835
 836                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 837                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 838                         g_object_unref(pixbuf);
 839                         }
 840                 }
 841
 842         image_update_util(imd);
 843 }
 844
 845 static void image_change_real(ImageWindow *imd, FileData *fd,
 846                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 847 {
 848
 849         imd->collection = cd;
 850         imd->collection_info = info;
 851
 852         if (imd->auto_refresh && imd->image_fd)
 853                 file_data_unregister_real_time_monitor(imd->image_fd);
 854
 855         file_data_unref(imd->image_fd);
 856         imd->image_fd = file_data_ref(fd);
 857
 858
 859         image_change_complete(imd, zoom);
 860
 861         image_update_title(imd);
 862         image_state_set(imd, IMAGE_STATE_IMAGE);
 863
 864         if (imd->auto_refresh && imd->image_fd)
 865                 file_data_register_real_time_monitor(imd->image_fd);
 866 }
 867
 868 /*
 869  *-------------------------------------------------------------------
 870  * focus stuff
 871  *-------------------------------------------------------------------
 872  */
 873
 874 static void image_focus_paint(ImageWindow *imd, gboolean has_focus, GdkRectangle *area)
 875 {
 876         GtkWidget *widget;
 877
 878         widget = imd->widget;
 879         if (!widget->window) return;
 880
 881         if (has_focus)
 882                 {
 883                 gtk_paint_focus(widget->style, widget->window, GTK_STATE_ACTIVE,
 884                                 area, widget, "image_window",
 885                                 widget->allocation.x, widget->allocation.y,
 886                                 widget->allocation.width - 1, widget->allocation.height - 1);
 887                 }
 888         else
 889                 {
 890                 gtk_paint_shadow(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
 891                                  area, widget, "image_window",
 892                                  widget->allocation.x, widget->allocation.y,
 893                                  widget->allocation.width - 1, widget->allocation.height - 1);
 894                 }
 895 }
 896
 897 static gboolean image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 898 {
 899         ImageWindow *imd = data;
 900
 901         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 902         return TRUE;
 903 }
 904
 905 static gboolean image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 906 {
 907         ImageWindow *imd = data;
 908
 909         GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 910         image_focus_paint(imd, TRUE, NULL);
 911
 912         if (imd->func_focus_in)
 913                 {
 914                 imd->func_focus_in(imd, imd->data_focus_in);
 915                 }
 916
 917         return TRUE;
 918 }
 919
 920 static gboolean image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 921 {
 922         ImageWindow *imd = data;
 923
 924         GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 925         image_focus_paint(imd, FALSE, NULL);
 926
 927         return TRUE;
 928 }
 929
 930 static gboolean image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 931 {
 932         ImageWindow *imd = data;
 933
 934         if (imd->func_scroll &&
 935             event && event->type == GDK_SCROLL)
 936                 {
 937                 imd->func_scroll(imd, event, imd->data_scroll);
 938                 return TRUE;
 939                 }
 940
 941         return FALSE;
 942 }
 943
 944 /*
 945  *-------------------------------------------------------------------
 946  * public interface
 947  *-------------------------------------------------------------------
 948  */
 949
 950 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 951                          const gchar *title, const gchar *title_right, gboolean show_zoom)
 952 {
 953         imd->top_window = window;
 954         g_free(imd->title);
 955         imd->title = g_strdup(title);
 956         g_free(imd->title_right);
 957         imd->title_right = g_strdup(title_right);
 958         imd->title_show_zoom = show_zoom;
 959
 960         if (!options->image.fit_window_to_image) window = NULL;
 961
 962         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 963
 964         image_update_title(imd);
 965 }
 966
 967 void image_set_update_func(ImageWindow *imd,
 968                            void (*func)(ImageWindow *imd, gpointer data),
 969                            gpointer data)
 970 {
 971         imd->func_update = func;
 972         imd->data_update = data;
 973 }
 974
 975 void image_set_complete_func(ImageWindow *imd,
 976                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
 977                              gpointer data)
 978 {
 979         imd->func_complete = func;
 980         imd->data_complete = data;
 981 }
 982
 983 void image_set_state_func(ImageWindow *imd,
 984                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 985                         gpointer data)
 986 {
 987         imd->func_state = func;
 988         imd->data_state = data;
 989 }
 990
 991
 992 void image_set_button_func(ImageWindow *imd,
 993                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
 994                            gpointer data)
 995 {
 996         imd->func_button = func;
 997         imd->data_button = data;
 998 }
 999
1000 void image_set_drag_func(ImageWindow *imd,
1001                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
1002                            gpointer data)
1003 {
1004         imd->func_drag = func;
1005         imd->data_drag = data;
1006 }
1007
1008 void image_set_scroll_func(ImageWindow *imd,
1009                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
1010                            gpointer data)
1011 {
1012         imd->func_scroll = func;
1013         imd->data_scroll = data;
1014 }
1015
1016 void image_set_scroll_notify_func(ImageWindow *imd,
1017                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
1018                                   gpointer data)
1019 {
1020         imd->func_scroll_notify = func;
1021         imd->data_scroll_notify = data;
1022 }
1023
1024 void image_set_focus_in_func(ImageWindow *imd,
1025                            void (*func)(ImageWindow *, gpointer),
1026                            gpointer data)
1027 {
1028         imd->func_focus_in = func;
1029         imd->data_focus_in = data;
1030 }
1031
1032 /* path, name */
1033
1034 const gchar *image_get_path(ImageWindow *imd)
1035 {
1036         if (imd->image_fd == NULL) return NULL;
1037         return imd->image_fd->path;
1038 }
1039
1040 const gchar *image_get_name(ImageWindow *imd)
1041 {
1042         if (imd->image_fd == NULL) return NULL;
1043         return imd->image_fd->name;
1044 }
1045
1046 FileData *image_get_fd(ImageWindow *imd)
1047 {
1048         return imd->image_fd;
1049 }
1050
1051 /* merely changes path string, does not change the image! */
1052 void image_set_fd(ImageWindow *imd, FileData *fd)
1053 {
1054         if (imd->auto_refresh && imd->image_fd)
1055                 file_data_unregister_real_time_monitor(imd->image_fd);
1056
1057         file_data_unref(imd->image_fd);
1058         imd->image_fd = file_data_ref(fd);
1059
1060         image_update_title(imd);
1061         image_state_set(imd, IMAGE_STATE_IMAGE);
1062
1063         if (imd->auto_refresh && imd->image_fd)
1064                 file_data_register_real_time_monitor(imd->image_fd);
1065 }
1066
1067 /* load a new image */
1068
1069 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1070 {
1071         if (imd->image_fd == fd) return;
1072
1073         image_change_real(imd, fd, NULL, NULL, zoom);
1074 }
1075
1076 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1077 {
1078         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1079 }
1080
1081 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1082 {
1083         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1084 }
1085
1086 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1087 {
1088
1089
1090         /* read_exif and similar functions can actually notice that the file has changed and triger a notification
1091         that removes the pixbuf from cache and unref it. Therefore we must ref it here before it is taken over by the renderer. */
1092         if (pixbuf) g_object_ref(pixbuf);
1093
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         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1108         if (imd->cm)
1109                 {
1110                 color_man_free(imd->cm);
1111                 imd->cm = NULL;
1112                 }
1113
1114         if (lazy)
1115                 {
1116                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation);
1117                 }
1118         else
1119                 {
1120                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1121                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1122                 }
1123
1124         if (pixbuf) g_object_unref(pixbuf);
1125
1126         if (imd->color_profile_enable)
1127                 {
1128                 image_post_process_color(imd, 0, FALSE); /* TODO: error handling */
1129                 }
1130
1131         if (imd->cm || imd->desaturate)
1132                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1133
1134         image_state_set(imd, IMAGE_STATE_IMAGE);
1135 }
1136
1137 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1138 {
1139         if (!cd || !info || !g_list_find(cd->list, info)) return;
1140
1141         image_change_real(imd, info->fd, cd, info, zoom);
1142 }
1143
1144 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1145 {
1146         if (collection_to_number(imd->collection) >= 0)
1147                 {
1148                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1149                         {
1150                         if (info) *info = imd->collection_info;
1151                         }
1152                 else
1153                         {
1154                         if (info) *info = NULL;
1155                         }
1156                 return imd->collection;
1157                 }
1158
1159         if (info) *info = NULL;
1160         return NULL;
1161 }
1162
1163 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1164 {
1165         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1166                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1167
1168         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1169                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1170 }
1171
1172 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1173 {
1174         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1175                 g_signal_connect(G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1176
1177         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1178                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1179
1180         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1181                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1182 }
1183
1184 /* this is more like a move function
1185  * it moves most data from source to imd
1186  */
1187 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1188 {
1189         if (imd == source) return;
1190
1191         imd->unknown = source->unknown;
1192
1193         imd->collection = source->collection;
1194         imd->collection_info = source->collection_info;
1195
1196         image_loader_free(imd->il);
1197         imd->il = NULL;
1198
1199         image_set_fd(imd, image_get_fd(source));
1200
1201
1202         if (source->il)
1203                 {
1204                 imd->il = source->il;
1205                 source->il = NULL;
1206
1207                 image_loader_sync_data(imd->il, source, imd);
1208
1209                 imd->delay_alter_type = source->delay_alter_type;
1210                 source->delay_alter_type = ALTER_NONE;
1211                 }
1212
1213         imd->color_profile_enable = source->color_profile_enable;
1214         imd->color_profile_input = source->color_profile_input;
1215         imd->color_profile_use_image = source->color_profile_use_image;
1216         color_man_free((ColorMan *)imd->cm);
1217         imd->cm = NULL;
1218         if (source->cm)
1219                 {
1220                 ColorMan *cm;
1221
1222                 imd->cm = source->cm;
1223                 source->cm = NULL;
1224
1225                 cm = (ColorMan *)imd->cm;
1226                 cm->imd = imd;
1227                 cm->func_done_data = imd;
1228                 }
1229
1230         image_loader_free(imd->read_ahead_il);
1231         imd->read_ahead_il = source->read_ahead_il;
1232         source->read_ahead_il = NULL;
1233         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1234
1235         file_data_unref(imd->read_ahead_fd);
1236         imd->read_ahead_fd = source->read_ahead_fd;
1237         source->read_ahead_fd = NULL;
1238
1239         imd->completed = source->completed;
1240         imd->state = source->state;
1241         source->state = IMAGE_STATE_NONE;
1242
1243         imd->orientation = source->orientation;
1244         imd->desaturate = source->desaturate;
1245
1246         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1247
1248         if (imd->cm || imd->desaturate)
1249                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1250         else
1251                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1252
1253 }
1254
1255 /* manipulation */
1256
1257 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1258 {
1259         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1260 }
1261
1262 void image_reload(ImageWindow *imd)
1263 {
1264         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1265
1266         image_change_complete(imd, image_zoom_get(imd));
1267 }
1268
1269 void image_scroll(ImageWindow *imd, gint x, gint y)
1270 {
1271         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1272 }
1273
1274 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1275                            gdouble x_align, gdouble y_align)
1276 {
1277         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1278 }
1279
1280 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1281 {
1282         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1283 }
1284
1285 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1286 {
1287         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1288 }
1289
1290 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1291 {
1292         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1293 }
1294
1295 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1296 {
1297         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1298 }
1299
1300 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1301 {
1302         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1303 }
1304
1305 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1306 {
1307         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1308 }
1309
1310 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1311 {
1312         PixbufRenderer *pr;
1313         gdouble zoom;
1314         gint width, height;
1315
1316         pr = (PixbufRenderer *)imd->pr;
1317
1318         if (!pixbuf_renderer_get_pixbuf(pr) ||
1319             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1320
1321         if (vertical)
1322                 {
1323                 zoom = (gdouble)pr->window_height / height;
1324                 }
1325         else
1326                 {
1327                 zoom = (gdouble)pr->window_width / width;
1328                 }
1329
1330         if (zoom < 1.0)
1331                 {
1332                 zoom = 0.0 - 1.0 / zoom;
1333                 }
1334
1335         pixbuf_renderer_zoom_set(pr, zoom);
1336 }
1337
1338 gdouble image_zoom_get(ImageWindow *imd)
1339 {
1340         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1341 }
1342
1343 gdouble image_zoom_get_real(ImageWindow *imd)
1344 {
1345         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1346 }
1347
1348 gchar *image_zoom_get_as_text(ImageWindow *imd)
1349 {
1350         gdouble zoom;
1351         gdouble scale;
1352         gdouble l = 1.0;
1353         gdouble r = 1.0;
1354         gint pl = 0;
1355         gint pr = 0;
1356         gchar *approx = " ";
1357
1358         zoom = image_zoom_get(imd);
1359         scale = image_zoom_get_real(imd);
1360
1361         if (zoom > 0.0)
1362                 {
1363                 l = zoom;
1364                 }
1365         else if (zoom < 0.0)
1366                 {
1367                 r = 0.0 - zoom;
1368                 }
1369         else if (zoom == 0.0 && scale != 0.0)
1370                 {
1371                 if (scale >= 1.0)
1372                         {
1373                         l = scale;
1374                         }
1375                 else
1376                         {
1377                         r = 1.0 / scale;
1378                         }
1379                 approx = "~";
1380                 }
1381
1382         if (rint(l) != l) pl = 1;
1383         if (rint(r) != r) pr = 1;
1384
1385         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1386 }
1387
1388 gdouble image_zoom_get_default(ImageWindow *imd)
1389 {
1390         gdouble zoom = 1.0;
1391
1392         switch (options->image.zoom_mode)
1393         {
1394         case ZOOM_RESET_ORIGINAL:
1395                 break;
1396         case ZOOM_RESET_FIT_WINDOW:
1397                 zoom = 0.0;
1398                 break;
1399         case ZOOM_RESET_NONE:
1400                 if (imd) zoom = image_zoom_get(imd);
1401                 break;
1402         }
1403
1404         return zoom;
1405 }
1406
1407 /* read ahead */
1408
1409 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1410 {
1411         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1412
1413         if (fd)
1414                 {
1415                 if (!file_cache_get(image_get_cache(), fd))
1416                         {
1417                         image_read_ahead_set(imd, fd);
1418                         }
1419                 }
1420         else
1421                 {
1422                 image_read_ahead_cancel(imd);
1423                 }
1424 }
1425
1426 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1427 {
1428         ImageWindow *imd = data;
1429
1430         if (!imd || !image_get_pixbuf(imd) ||
1431             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1432             !imd->image_fd || /* nothing to reload */
1433             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1434             ) return;
1435
1436         if ((type & (NOTIFY_REREAD | NOTIFY_CHANGE)) && fd == imd->image_fd)
1437                 {
1438                 DEBUG_1("Notify image: %s %04x", fd->path, type);
1439                 image_reload(imd);
1440                 }
1441 }
1442
1443 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1444 {
1445         if (!enable && imd->auto_refresh && imd->image_fd)
1446                 file_data_unregister_real_time_monitor(imd->image_fd);
1447
1448         if (enable && !imd->auto_refresh && imd->image_fd)
1449                 file_data_register_real_time_monitor(imd->image_fd);
1450
1451         imd->auto_refresh = enable;
1452 }
1453
1454 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1455 {
1456         imd->top_window_sync = allow_sync;
1457
1458         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1459 }
1460
1461 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1462 {
1463         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1464 }
1465
1466 void image_background_set_color_from_options(ImageWindow *imd, gboolean fullscreen)
1467 {
1468         GdkColor *color = NULL;
1469
1470         if (options->image.use_custom_border_color
1471             && (!options->image.custom_border_fullscreen_only || fullscreen))
1472                 {
1473                 color = &options->image.border_color;
1474                 }
1475
1476         image_background_set_color(imd, color);
1477 }
1478
1479 void image_color_profile_set(ImageWindow *imd,
1480                              gint input_type,
1481                              gboolean use_image)
1482 {
1483         if (!imd) return;
1484
1485         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
1486                 {
1487                 return;
1488                 }
1489
1490         imd->color_profile_input = input_type;
1491         imd->color_profile_use_image = use_image;
1492 }
1493
1494 gboolean image_color_profile_get(ImageWindow *imd,
1495                                  gint *input_type,
1496                                  gboolean *use_image)
1497 {
1498         if (!imd) return FALSE;
1499
1500         if (input_type) *input_type = imd->color_profile_input;
1501         if (use_image) *use_image = imd->color_profile_use_image;
1502
1503         return TRUE;
1504 }
1505
1506 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1507 {
1508         if (!imd) return;
1509
1510         if (imd->color_profile_enable == enable) return;
1511
1512         imd->color_profile_enable = enable;
1513 }
1514
1515 gboolean image_color_profile_get_use(ImageWindow *imd)
1516 {
1517         if (!imd) return FALSE;
1518
1519         return imd->color_profile_enable;
1520 }
1521
1522 gboolean image_color_profile_get_status(ImageWindow *imd, gchar **image_profile, gchar **screen_profile)
1523 {
1524         ColorMan *cm;
1525         if (!imd) return FALSE;
1526
1527         cm = imd->cm;
1528         if (!cm) return FALSE;
1529         return color_man_get_status(cm, image_profile, screen_profile);
1530
1531 }
1532
1533 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1534 {
1535         if (!imd ||
1536             imd->delay_flip == delay) return;
1537
1538         imd->delay_flip = delay;
1539
1540         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1541
1542         if (!imd->delay_flip && imd->il)
1543                 {
1544                 PixbufRenderer *pr;
1545
1546                 pr = PIXBUF_RENDERER(imd->pr);
1547                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1548                 pr->pixbuf = NULL;
1549
1550                 image_load_pixbuf_ready(imd);
1551                 }
1552 }
1553
1554 void image_to_root_window(ImageWindow *imd, gboolean scaled)
1555 {
1556         GdkScreen *screen;
1557         GdkWindow *rootwindow;
1558         GdkPixmap *pixmap;
1559         GdkPixbuf *pixbuf;
1560         GdkPixbuf *pb;
1561         gint width, height;
1562
1563         if (!imd) return;
1564
1565         pixbuf = image_get_pixbuf(imd);
1566         if (!pixbuf) return;
1567
1568         screen = gtk_widget_get_screen(imd->widget);
1569         rootwindow = gdk_screen_get_root_window(screen);
1570         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1571
1572         if (scaled)
1573                 {
1574                 width = gdk_screen_width();
1575                 height = gdk_screen_height();
1576                 }
1577         else
1578                 {
1579                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1580                 }
1581
1582         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1583
1584         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1585         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1586         gdk_window_clear(rootwindow);
1587         g_object_unref(pb);
1588         g_object_unref(pixmap);
1589
1590         gdk_flush();
1591 }
1592
1593 void image_select(ImageWindow *imd, gboolean select)
1594 {
1595         if (!imd->has_frame) return;
1596
1597         if (select)
1598                 {
1599                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1600                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1601                 }
1602         else
1603                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1604 }
1605
1606 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1607 {
1608         if (!imd->has_frame) return;
1609
1610         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1611         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
1612 }
1613
1614 void image_grab_focus(ImageWindow *imd)
1615 {
1616         if (imd->has_frame)
1617                 {
1618                 gtk_widget_grab_focus(imd->frame);
1619                 }
1620         else
1621                 {
1622                 gtk_widget_grab_focus(imd->widget);
1623                 }
1624 }
1625
1626
1627 /*
1628  *-------------------------------------------------------------------
1629  * prefs sync
1630  *-------------------------------------------------------------------
1631  */
1632
1633 static void image_options_set(ImageWindow *imd)
1634 {
1635         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1636                                         "zoom_2pass", options->image.zoom_2pass,
1637                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1638                                         "dither_quality", options->image.dither_quality,
1639                                         "scroll_reset", options->image.scroll_reset_method,
1640                                         "cache_display", options->image.tile_cache_max,
1641                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1642                                         "window_limit", options->image.limit_window_size,
1643                                         "window_limit_value", options->image.max_window_size,
1644                                         "autofit_limit", options->image.limit_autofit_size,
1645                                         "autofit_limit_value", options->image.max_autofit_size,
1646
1647                                         NULL);
1648
1649         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1650 }
1651
1652 void image_options_sync(void)
1653 {
1654         GList *work;
1655
1656         work = image_list;
1657         while (work)
1658                 {
1659                 ImageWindow *imd;
1660
1661                 imd = work->data;
1662                 work = work->next;
1663
1664                 image_options_set(imd);
1665                 }
1666 }
1667
1668 /*
1669  *-------------------------------------------------------------------
1670  * init / destroy
1671  *-------------------------------------------------------------------
1672  */
1673
1674 static void image_free(ImageWindow *imd)
1675 {
1676         image_list = g_list_remove(image_list, imd);
1677
1678         if (imd->auto_refresh && imd->image_fd)
1679                 file_data_unregister_real_time_monitor(imd->image_fd);
1680
1681         file_data_unregister_notify_func(image_notify_cb, imd);
1682
1683         image_reset(imd);
1684
1685         image_read_ahead_cancel(imd);
1686
1687         file_data_unref(imd->image_fd);
1688         g_free(imd->title);
1689         g_free(imd->title_right);
1690         g_free(imd);
1691 }
1692
1693 static void image_destroy_cb(GtkObject *widget, gpointer data)
1694 {
1695         ImageWindow *imd = data;
1696         image_free(imd);
1697 }
1698
1699 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1700 {
1701         gtk_paint_flat_box(widget->style,
1702                            widget->window,
1703                            widget->state,
1704                            (GTK_FRAME(widget))->shadow_type,
1705                            NULL,
1706                            widget,
1707                            NULL,
1708                            widget->allocation.x + 3, widget->allocation.y + 3,
1709                            widget->allocation.width - 6, widget->allocation.height - 6);
1710
1711
1712         return FALSE;
1713 }
1714
1715
1716 void image_set_frame(ImageWindow *imd, gboolean frame)
1717 {
1718         frame = !!frame;
1719
1720         if (frame == imd->has_frame) return;
1721
1722         gtk_widget_hide(imd->pr);
1723
1724         if (frame)
1725                 {
1726                 imd->frame = gtk_frame_new(NULL);
1727 #if GTK_CHECK_VERSION(2,12,0)
1728                 g_object_ref(imd->pr);
1729 #else
1730                 gtk_widget_ref(imd->pr);
1731 #endif
1732                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1733                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1734
1735 #if GTK_CHECK_VERSION(2,12,0)
1736                 g_object_unref(imd->pr);
1737 #else
1738                 gtk_widget_unref(imd->pr);
1739 #endif
1740                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1741                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1742
1743                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1744                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1745                                  G_CALLBACK(image_focus_in_cb), imd);
1746                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1747                                  G_CALLBACK(image_focus_out_cb), imd);
1748
1749                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1750                                        G_CALLBACK(image_focus_expose), imd);
1751
1752 #if GTK_CHECK_VERSION(2,14,0)
1753                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1754 #else
1755                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1756 #endif
1757                 gtk_widget_show(imd->frame);
1758                 }
1759         else
1760                 {
1761 #if GTK_CHECK_VERSION(2,12,0)
1762                 g_object_ref(imd->pr);
1763 #else
1764                 gtk_widget_ref(imd->pr);
1765 #endif
1766                 if (imd->frame)
1767                         {
1768                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1769                         gtk_widget_destroy(imd->frame);
1770                         imd->frame = NULL;
1771                         }
1772 #if GTK_CHECK_VERSION(2,14,0)
1773                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1774 #else
1775                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1776 #endif
1777
1778 #if GTK_CHECK_VERSION(2,12,0)
1779                 g_object_unref(imd->pr);
1780 #else
1781                 gtk_widget_unref(imd->pr);
1782 #endif
1783                 }
1784
1785         gtk_widget_show(imd->pr);
1786
1787         imd->has_frame = frame;
1788 }
1789
1790 ImageWindow *image_new(gboolean frame)
1791 {
1792         ImageWindow *imd;
1793
1794         imd = g_new0(ImageWindow, 1);
1795
1796         imd->unknown = TRUE;
1797         imd->has_frame = -1; /* not initialized; for image_set_frame */
1798         imd->delay_alter_type = ALTER_NONE;
1799         imd->state = IMAGE_STATE_NONE;
1800         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1801         imd->orientation = 1;
1802
1803         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1804
1805         image_options_set(imd);
1806
1807         imd->widget = gtk_vbox_new(0, 0);
1808
1809         image_set_frame(imd, frame);
1810
1811         image_set_selectable(imd, 0);
1812
1813         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1814                          G_CALLBACK(image_click_cb), imd);
1815         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1816                          G_CALLBACK(image_scroll_notify_cb), imd);
1817
1818         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1819                          G_CALLBACK(image_scroll_cb), imd);
1820
1821         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1822                          G_CALLBACK(image_destroy_cb), imd);
1823
1824         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1825                          G_CALLBACK(image_zoom_cb), imd);
1826         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1827                          G_CALLBACK(image_render_complete_cb), imd);
1828         g_signal_connect(G_OBJECT(imd->pr), "drag",
1829                          G_CALLBACK(image_drag_cb), imd);
1830
1831         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1832
1833         image_list = g_list_append(image_list, imd);
1834
1835         return imd;
1836 }
1837 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */