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
 192 static gboolean image_post_process_color(ImageWindow *imd, gint start_row, gboolean run_in_bg)
 193 {
 194         ColorMan *cm;
 195         ColorManProfileType input_type;
 196         ColorManProfileType screen_type;
 197         const gchar *input_file;
 198         const gchar *screen_file;
 199         guchar *profile = NULL;
 200         guint profile_len;
 201         ExifData *exif;
 202
 203         if (imd->cm) return FALSE;
 204
 205         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
 206             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
 207                 {
 208                 const gchar *file = options->color_profile.input_file[imd->color_profile_input - COLOR_PROFILE_FILE];
 209
 210                 if (!is_readable_file(file)) return FALSE;
 211
 212                 input_type = COLOR_PROFILE_FILE;
 213                 input_file = file;
 214                 }
 215         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
 216                  imd->color_profile_input <  COLOR_PROFILE_FILE)
 217                 {
 218                 input_type = imd->color_profile_input;
 219                 input_file = NULL;
 220                 }
 221         else
 222                 {
 223                 return FALSE;
 224                 }
 225
 226         if (imd->color_profile_screen == 1 &&
 227             is_readable_file(options->color_profile.screen_file))
 228                 {
 229                 screen_type = COLOR_PROFILE_FILE;
 230                 screen_file = options->color_profile.screen_file;
 231                 }
 232         else if (imd->color_profile_screen == 0)
 233                 {
 234                 screen_type = COLOR_PROFILE_SRGB;
 235                 screen_file = NULL;
 236                 }
 237         else
 238                 {
 239                 return FALSE;
 240                 }
 241
 242
 243         imd->color_profile_from_image = COLOR_PROFILE_NONE;
 244
 245         exif = exif_read_fd(imd->image_fd);
 246
 247         if (exif)
 248                 {
 249                 profile = exif_get_color_profile(exif, &profile_len);
 250                 if (profile)
 251                         {
 252                         if (!imd->color_profile_use_image)
 253                                 {
 254                                 g_free(profile);
 255                                 profile = NULL;
 256                                 }
 257                         DEBUG_1("Found embedded color profile");
 258                         imd->color_profile_from_image = COLOR_PROFILE_MEM;
 259                         }
 260                 else
 261                         {
 262                         gchar *interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
 263
 264                         if (interop_index)
 265                                 {
 266                                 /* Exif 2.21 specification */
 267                                 if (!strcmp(interop_index, "R98"))
 268                                         {
 269                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 270                                         DEBUG_1("Found EXIF 2.21 ColorSpace of sRGB");
 271                                         }
 272                                 else if (!strcmp(interop_index, "R03"))
 273                                         {
 274                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 275                                         DEBUG_1("Found EXIF 2.21 ColorSpace of AdobeRGB");
 276                                         }
 277                                 g_free(interop_index);
 278                                 }
 279                         else
 280                                 {
 281                                 gint cs;
 282
 283                                 /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
 284                                 if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
 285                                 if (cs == 1)
 286                                         {
 287                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 288                                         DEBUG_1("Found EXIF 2.2 ColorSpace of sRGB");
 289                                         }
 290                                 else if (cs == 2)
 291                                         {
 292                                         /* non-standard way of specifying AdobeRGB (used by some software) */
 293                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 294                                         DEBUG_1("Found EXIF 2.2 ColorSpace of AdobeRGB");
 295                                         }
 296                                 }
 297
 298                         if (imd->color_profile_use_image && imd->color_profile_from_image != COLOR_PROFILE_NONE)
 299                                {
 300                                input_type = imd->color_profile_from_image;
 301                                input_file = NULL;
 302                                }
 303                         }
 304
 305                 exif_free_fd(imd->image_fd, exif);
 306                 }
 307
 308
 309         if (profile)
 310                 {
 311                 cm = color_man_new_embedded(run_in_bg ? imd : NULL, NULL,
 312                                             profile, profile_len,
 313                                             screen_type, screen_file);
 314                 g_free(profile);
 315                 }
 316         else
 317                 {
 318                 cm = color_man_new(run_in_bg ? imd : NULL, NULL,
 319                                    input_type, input_file,
 320                                    screen_type, screen_file);
 321                 }
 322
 323         if (cm)
 324                 {
 325                 if (start_row > 0)
 326                         {
 327                         cm->row = start_row;
 328                         cm->incremental_sync = TRUE;
 329                         }
 330
 331                 imd->cm = (gpointer)cm;
 332 #if 0
 333                 if (run_in_bg) color_man_start_bg(imd->cm, image_post_process_color_cb, imd);
 334 #endif
 335                 return TRUE;
 336                 }
 337
 338         return FALSE;
 339 }
 340
 341
 342 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 343 {
 344         ImageWindow *imd = (ImageWindow *)data;
 345         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
 346         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 347
 348 }
 349
 350 void image_alter(ImageWindow *imd, AlterType type)
 351 {
 352         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 353         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 354         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 355         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 356         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 357
 358
 359         if (!imd || !imd->pr || !imd->image_fd) return;
 360
 361         if (imd->orientation < 1 || imd->orientation > 8) imd->orientation = 1;
 362
 363         switch (type)
 364                 {
 365                 case ALTER_ROTATE_90:
 366                         imd->orientation = rotate_90[imd->orientation];
 367                         break;
 368                 case ALTER_ROTATE_90_CC:
 369                         imd->orientation = rotate_90_cc[imd->orientation];
 370                         break;
 371                 case ALTER_ROTATE_180:
 372                         imd->orientation = rotate_180[imd->orientation];
 373                         break;
 374                 case ALTER_MIRROR:
 375                         imd->orientation = mirror[imd->orientation];
 376                         break;
 377                 case ALTER_FLIP:
 378                         imd->orientation = flip[imd->orientation];
 379                         break;
 380                 case ALTER_DESATURATE:
 381                         imd->desaturate = !imd->desaturate;
 382                         break;
 383                 case ALTER_NONE:
 384                         imd->orientation = imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1;
 385                         imd->desaturate = FALSE;
 386                         break;
 387                 default:
 388                         return;
 389                         break;
 390                 }
 391
 392         if (type != ALTER_NONE && type != ALTER_DESATURATE)
 393                 {
 394                 if (imd->image_fd->user_orientation == 0) file_data_ref(imd->image_fd);
 395                 imd->image_fd->user_orientation = imd->orientation;
 396                 }
 397         else
 398                 {
 399                 if (imd->image_fd->user_orientation != 0) file_data_unref(imd->image_fd);
 400                 imd->image_fd->user_orientation = 0;
 401                 }
 402
 403         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 404         if (imd->cm || imd->desaturate)
 405                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 406         else
 407                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 408 }
 409
 410
 411 /*
 412  *-------------------------------------------------------------------
 413  * read ahead (prebuffer)
 414  *-------------------------------------------------------------------
 415  */
 416
 417 static void image_read_ahead_cancel(ImageWindow *imd)
 418 {
 419         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 420
 421         image_loader_free(imd->read_ahead_il);
 422         imd->read_ahead_il = NULL;
 423
 424         file_data_unref(imd->read_ahead_fd);
 425         imd->read_ahead_fd = NULL;
 426 }
 427
 428 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 429 {
 430         ImageWindow *imd = data;
 431
 432         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 433
 434         if (!imd->read_ahead_fd->pixbuf)
 435                 {
 436                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 437                 if (imd->read_ahead_fd->pixbuf)
 438                         {
 439                         g_object_ref(imd->read_ahead_fd->pixbuf);
 440                         image_cache_set(imd, imd->read_ahead_fd);
 441                         }
 442                 }
 443         image_loader_free(imd->read_ahead_il);
 444         imd->read_ahead_il = NULL;
 445
 446         image_complete_util(imd, TRUE);
 447 }
 448
 449 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 450 {
 451         /* we even treat errors as success, maybe at least some of the file was ok */
 452         image_read_ahead_done_cb(il, data);
 453 }
 454
 455 static void image_read_ahead_start(ImageWindow *imd)
 456 {
 457         /* already started ? */
 458         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 459
 460         /* still loading ?, do later */
 461         if (imd->il /*|| imd->cm*/) return;
 462
 463         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 464
 465         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 466
 467         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 468
 469         g_signal_connect(G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 470         g_signal_connect(G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 471
 472         if (!image_loader_start(imd->read_ahead_il))
 473                 {
 474                 image_read_ahead_cancel(imd);
 475                 image_complete_util(imd, TRUE);
 476                 }
 477 }
 478
 479 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 480 {
 481         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 482
 483         image_read_ahead_cancel(imd);
 484
 485         imd->read_ahead_fd = file_data_ref(fd);
 486
 487         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 488
 489         image_read_ahead_start(imd);
 490 }
 491
 492 /*
 493  *-------------------------------------------------------------------
 494  * post buffering
 495  *-------------------------------------------------------------------
 496  */
 497
 498 static void image_cache_release_cb(FileData *fd)
 499 {
 500         g_object_unref(fd->pixbuf);
 501         fd->pixbuf = NULL;
 502 }
 503
 504 static FileCacheData *image_get_cache(void)
 505 {
 506         static FileCacheData *cache = NULL;
 507         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 508         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 509         return cache;
 510 }
 511
 512 static void image_cache_set(ImageWindow *imd, FileData *fd)
 513 {
 514         g_assert(fd->pixbuf);
 515
 516         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 517         file_data_send_notification(fd, NOTIFY_PIXBUF); /* to update histogram */
 518 }
 519
 520 static gint image_cache_get(ImageWindow *imd)
 521 {
 522         gint success;
 523
 524         success = file_cache_get(image_get_cache(), imd->image_fd);
 525         if (success)
 526                 {
 527                 g_assert(imd->image_fd->pixbuf);
 528                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 529                 }
 530
 531         file_cache_dump(image_get_cache());
 532         return success;
 533 }
 534
 535 /*
 536  *-------------------------------------------------------------------
 537  * loading
 538  *-------------------------------------------------------------------
 539  */
 540
 541 static void image_load_pixbuf_ready(ImageWindow *imd)
 542 {
 543         if (image_get_pixbuf(imd) || !imd->il) return;
 544
 545         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 546 }
 547
 548 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 549 {
 550         ImageWindow *imd = data;
 551         PixbufRenderer *pr;
 552
 553         pr = (PixbufRenderer *)imd->pr;
 554
 555         if (imd->delay_flip &&
 556             pr->pixbuf != image_loader_get_pixbuf(il))
 557                 {
 558                 return;
 559                 }
 560
 561         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 562
 563         pixbuf_renderer_area_changed(pr, x, y, w, h);
 564 }
 565
 566 static void image_load_done_cb(ImageLoader *il, gpointer data)
 567 {
 568         ImageWindow *imd = data;
 569
 570         DEBUG_1("%s image done", get_exec_time());
 571
 572         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 573                 {
 574                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
 575                 image_cache_set(imd, imd->image_fd);
 576                 }
 577         /* call the callback triggered by image_state after fd->pixbuf is set */
 578         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 579         image_state_unset(imd, IMAGE_STATE_LOADING);
 580
 581         if (!image_loader_get_pixbuf(imd->il))
 582                 {
 583                 GdkPixbuf *pixbuf;
 584
 585                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 586                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 587                 g_object_unref(pixbuf);
 588
 589                 imd->unknown = TRUE;
 590                 }
 591         else if (imd->delay_flip &&
 592             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 593                 {
 594                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 595                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 596                 }
 597
 598         image_loader_free(imd->il);
 599         imd->il = NULL;
 600
 601 //      image_post_process(imd, TRUE);
 602
 603         image_read_ahead_start(imd);
 604 }
 605
 606 static void image_load_error_cb(ImageLoader *il, gpointer data)
 607 {
 608         DEBUG_1("%s image error", get_exec_time());
 609
 610         /* even on error handle it like it was done,
 611          * since we have a pixbuf with _something_ */
 612
 613         image_load_done_cb(il, data);
 614 }
 615
 616 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
 617 {
 618         g_assert(imd->il);
 619         if (override_old_signals)
 620                 {
 621                 /* override the old signals */
 622                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 623                 }
 624
 625         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 626         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 627         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 628 }
 629
 630 /* this read ahead is located here merely for the callbacks, above */
 631
 632 static gboolean image_read_ahead_check(ImageWindow *imd)
 633 {
 634         if (!imd->read_ahead_fd) return FALSE;
 635         if (imd->il) return FALSE;
 636
 637         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 638                 {
 639                 image_read_ahead_cancel(imd);
 640                 return FALSE;
 641                 }
 642
 643         if (imd->read_ahead_il)
 644                 {
 645                 imd->il = imd->read_ahead_il;
 646                 imd->read_ahead_il = NULL;
 647
 648                 image_load_set_signals(imd, TRUE);
 649
 650                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 651                 image_state_set(imd, IMAGE_STATE_LOADING);
 652
 653                 if (!imd->delay_flip)
 654                         {
 655                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 656                         }
 657
 658                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 659
 660                 file_data_unref(imd->read_ahead_fd);
 661                 imd->read_ahead_fd = NULL;
 662                 return TRUE;
 663                 }
 664         else if (imd->read_ahead_fd->pixbuf)
 665                 {
 666                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
 667
 668                 file_data_unref(imd->read_ahead_fd);
 669                 imd->read_ahead_fd = NULL;
 670
 671 //              image_post_process(imd, FALSE);
 672                 return TRUE;
 673                 }
 674
 675         image_read_ahead_cancel(imd);
 676         return FALSE;
 677 }
 678
 679 static gboolean image_load_begin(ImageWindow *imd, FileData *fd)
 680 {
 681         DEBUG_1("%s image begin", get_exec_time());
 682
 683         if (imd->il) return FALSE;
 684
 685         imd->completed = FALSE;
 686         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 687
 688         if (image_cache_get(imd))
 689                 {
 690                 DEBUG_1("from cache: %s", imd->image_fd->path);
 691                 return TRUE;
 692                 }
 693
 694         if (image_read_ahead_check(imd))
 695                 {
 696                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 697                 return TRUE;
 698                 }
 699
 700         if (!imd->delay_flip && image_get_pixbuf(imd))
 701                 {
 702                 PixbufRenderer *pr;
 703
 704                 pr = PIXBUF_RENDERER(imd->pr);
 705                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 706                 pr->pixbuf = NULL;
 707                 }
 708
 709         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 710
 711         imd->il = image_loader_new(fd);
 712
 713         image_load_set_signals(imd, FALSE);
 714
 715         if (!image_loader_start(imd->il))
 716                 {
 717                 DEBUG_1("image start error");
 718
 719                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 720
 721                 image_loader_free(imd->il);
 722                 imd->il = NULL;
 723
 724                 image_complete_util(imd, FALSE);
 725
 726                 return FALSE;
 727                 }
 728
 729         image_state_set(imd, IMAGE_STATE_LOADING);
 730
 731 /*
 732         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
 733                 {
 734                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 735                 }
 736 */
 737         return TRUE;
 738 }
 739
 740 static void image_reset(ImageWindow *imd)
 741 {
 742         /* stops anything currently being done */
 743
 744         DEBUG_1("%s image reset", get_exec_time());
 745
 746         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 747
 748         image_loader_free(imd->il);
 749         imd->il = NULL;
 750
 751         color_man_free((ColorMan *)imd->cm);
 752         imd->cm = NULL;
 753
 754         imd->delay_alter_type = ALTER_NONE;
 755
 756         image_state_set(imd, IMAGE_STATE_NONE);
 757 }
 758
 759 /*
 760  *-------------------------------------------------------------------
 761  * image changer
 762  *-------------------------------------------------------------------
 763  */
 764
 765 static void image_change_complete(ImageWindow *imd, gdouble zoom)
 766 {
 767         image_reset(imd);
 768         imd->unknown = TRUE;
 769
 770         if (!imd->image_fd)
 771                 {
 772                 image_change_pixbuf(imd, NULL, zoom, FALSE);
 773                 }
 774         else
 775                 {
 776
 777                 if (is_readable_file(imd->image_fd->path))
 778                         {
 779                         PixbufRenderer *pr;
 780
 781                         pr = PIXBUF_RENDERER(imd->pr);
 782                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
 783
 784                         if (image_load_begin(imd, imd->image_fd))
 785                                 {
 786                                 imd->unknown = FALSE;
 787                                 }
 788                         }
 789
 790                 if (imd->unknown == TRUE)
 791                         {
 792                         GdkPixbuf *pixbuf;
 793
 794                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 795                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 796                         g_object_unref(pixbuf);
 797                         }
 798                 }
 799
 800         image_update_util(imd);
 801 }
 802
 803 static void image_change_real(ImageWindow *imd, FileData *fd,
 804                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 805 {
 806
 807         imd->collection = cd;
 808         imd->collection_info = info;
 809
 810         if (imd->auto_refresh && imd->image_fd)
 811                 file_data_unregister_real_time_monitor(imd->image_fd);
 812
 813         file_data_unref(imd->image_fd);
 814         imd->image_fd = file_data_ref(fd);
 815
 816
 817         image_change_complete(imd, zoom);
 818
 819         image_update_title(imd);
 820         image_state_set(imd, IMAGE_STATE_IMAGE);
 821
 822         if (imd->auto_refresh && imd->image_fd)
 823                 file_data_register_real_time_monitor(imd->image_fd);
 824 }
 825
 826 /*
 827  *-------------------------------------------------------------------
 828  * focus stuff
 829  *-------------------------------------------------------------------
 830  */
 831
 832 static void image_focus_paint(ImageWindow *imd, gboolean has_focus, GdkRectangle *area)
 833 {
 834         GtkWidget *widget;
 835
 836         widget = imd->widget;
 837         if (!widget->window) return;
 838
 839         if (has_focus)
 840                 {
 841                 gtk_paint_focus(widget->style, widget->window, GTK_STATE_ACTIVE,
 842                                 area, widget, "image_window",
 843                                 widget->allocation.x, widget->allocation.y,
 844                                 widget->allocation.width - 1, widget->allocation.height - 1);
 845                 }
 846         else
 847                 {
 848                 gtk_paint_shadow(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
 849                                  area, widget, "image_window",
 850                                  widget->allocation.x, widget->allocation.y,
 851                                  widget->allocation.width - 1, widget->allocation.height - 1);
 852                 }
 853 }
 854
 855 static gboolean image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 856 {
 857         ImageWindow *imd = data;
 858
 859         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 860         return TRUE;
 861 }
 862
 863 static gboolean image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 864 {
 865         ImageWindow *imd = data;
 866
 867         GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 868         image_focus_paint(imd, TRUE, NULL);
 869
 870         if (imd->func_focus_in)
 871                 {
 872                 imd->func_focus_in(imd, imd->data_focus_in);
 873                 }
 874
 875         return TRUE;
 876 }
 877
 878 static gboolean image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 879 {
 880         ImageWindow *imd = data;
 881
 882         GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 883         image_focus_paint(imd, FALSE, NULL);
 884
 885         return TRUE;
 886 }
 887
 888 static gboolean image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 889 {
 890         ImageWindow *imd = data;
 891
 892         if (imd->func_scroll &&
 893             event && event->type == GDK_SCROLL)
 894                 {
 895                 imd->func_scroll(imd, event, imd->data_scroll);
 896                 return TRUE;
 897                 }
 898
 899         return FALSE;
 900 }
 901
 902 /*
 903  *-------------------------------------------------------------------
 904  * public interface
 905  *-------------------------------------------------------------------
 906  */
 907
 908 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 909                          const gchar *title, const gchar *title_right, gboolean show_zoom)
 910 {
 911         imd->top_window = window;
 912         g_free(imd->title);
 913         imd->title = g_strdup(title);
 914         g_free(imd->title_right);
 915         imd->title_right = g_strdup(title_right);
 916         imd->title_show_zoom = show_zoom;
 917
 918         if (!options->image.fit_window_to_image) window = NULL;
 919
 920         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 921
 922         image_update_title(imd);
 923 }
 924
 925 void image_set_update_func(ImageWindow *imd,
 926                            void (*func)(ImageWindow *imd, gpointer data),
 927                            gpointer data)
 928 {
 929         imd->func_update = func;
 930         imd->data_update = data;
 931 }
 932
 933 void image_set_complete_func(ImageWindow *imd,
 934                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
 935                              gpointer data)
 936 {
 937         imd->func_complete = func;
 938         imd->data_complete = data;
 939 }
 940
 941 void image_set_state_func(ImageWindow *imd,
 942                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 943                         gpointer data)
 944 {
 945         imd->func_state = func;
 946         imd->data_state = data;
 947 }
 948
 949
 950 void image_set_button_func(ImageWindow *imd,
 951                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
 952                            gpointer data)
 953 {
 954         imd->func_button = func;
 955         imd->data_button = data;
 956 }
 957
 958 void image_set_drag_func(ImageWindow *imd,
 959                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
 960                            gpointer data)
 961 {
 962         imd->func_drag = func;
 963         imd->data_drag = data;
 964 }
 965
 966 void image_set_scroll_func(ImageWindow *imd,
 967                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
 968                            gpointer data)
 969 {
 970         imd->func_scroll = func;
 971         imd->data_scroll = data;
 972 }
 973
 974 void image_set_scroll_notify_func(ImageWindow *imd,
 975                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
 976                                   gpointer data)
 977 {
 978         imd->func_scroll_notify = func;
 979         imd->data_scroll_notify = data;
 980 }
 981
 982 void image_set_focus_in_func(ImageWindow *imd,
 983                            void (*func)(ImageWindow *, gpointer),
 984                            gpointer data)
 985 {
 986         imd->func_focus_in = func;
 987         imd->data_focus_in = data;
 988 }
 989
 990 /* path, name */
 991
 992 const gchar *image_get_path(ImageWindow *imd)
 993 {
 994         if (imd->image_fd == NULL) return NULL;
 995         return imd->image_fd->path;
 996 }
 997
 998 const gchar *image_get_name(ImageWindow *imd)
 999 {
1000         if (imd->image_fd == NULL) return NULL;
1001         return imd->image_fd->name;
1002 }
1003
1004 FileData *image_get_fd(ImageWindow *imd)
1005 {
1006         return imd->image_fd;
1007 }
1008
1009 /* merely changes path string, does not change the image! */
1010 void image_set_fd(ImageWindow *imd, FileData *fd)
1011 {
1012         if (imd->auto_refresh && imd->image_fd)
1013                 file_data_unregister_real_time_monitor(imd->image_fd);
1014
1015         file_data_unref(imd->image_fd);
1016         imd->image_fd = file_data_ref(fd);
1017
1018         image_update_title(imd);
1019         image_state_set(imd, IMAGE_STATE_IMAGE);
1020
1021         if (imd->auto_refresh && imd->image_fd)
1022                 file_data_register_real_time_monitor(imd->image_fd);
1023 }
1024
1025 /* load a new image */
1026
1027 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1028 {
1029         if (imd->image_fd == fd) return;
1030
1031         image_change_real(imd, fd, NULL, NULL, zoom);
1032 }
1033
1034 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1035 {
1036         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1037 }
1038
1039 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1040 {
1041         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1042 }
1043
1044 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1045 {
1046
1047
1048         /* read_exif and similar functions can actually notice that the file has changed and triger a notification
1049         that removes the pixbuf from cache and unref it. Therefore we must ref it here before it is taken over by the renderer. */
1050         if (pixbuf) g_object_ref(pixbuf);
1051
1052         if (imd->image_fd)
1053                 {
1054                 if (imd->image_fd->user_orientation)
1055                         {
1056                         imd->orientation = imd->image_fd->user_orientation;
1057                         }
1058                 else if (options->image.exif_rotate_enable)
1059                         {
1060                         imd->orientation = metadata_read_int(imd->image_fd, "Exif.Image.Orientation", EXIF_ORIENTATION_TOP_LEFT);
1061                         imd->image_fd->exif_orientation = imd->orientation;
1062                         }
1063                 }
1064
1065         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1066         if (imd->cm)
1067                 {
1068                 color_man_free(imd->cm);
1069                 imd->cm = NULL;
1070                 }
1071
1072         if (lazy)
1073                 {
1074                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation);
1075                 }
1076         else
1077                 {
1078                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1079                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1080                 }
1081
1082         if (pixbuf) g_object_unref(pixbuf);
1083
1084         if (imd->color_profile_enable)
1085                 {
1086                 image_post_process_color(imd, 0, FALSE); /* TODO: error handling */
1087                 }
1088
1089         if (imd->cm || imd->desaturate)
1090                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1091
1092         image_state_set(imd, IMAGE_STATE_IMAGE);
1093 }
1094
1095 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1096 {
1097         if (!cd || !info || !g_list_find(cd->list, info)) return;
1098
1099         image_change_real(imd, info->fd, cd, info, zoom);
1100 }
1101
1102 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1103 {
1104         if (collection_to_number(imd->collection) >= 0)
1105                 {
1106                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1107                         {
1108                         if (info) *info = imd->collection_info;
1109                         }
1110                 else
1111                         {
1112                         if (info) *info = NULL;
1113                         }
1114                 return imd->collection;
1115                 }
1116
1117         if (info) *info = NULL;
1118         return NULL;
1119 }
1120
1121 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1122 {
1123         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1124                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1125
1126         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1127                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1128 }
1129
1130 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1131 {
1132         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1133                 g_signal_connect(G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1134
1135         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1136                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1137
1138         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1139                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1140 }
1141
1142 /* this is more like a move function
1143  * it moves most data from source to imd
1144  */
1145 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1146 {
1147         if (imd == source) return;
1148
1149         imd->unknown = source->unknown;
1150
1151         imd->collection = source->collection;
1152         imd->collection_info = source->collection_info;
1153
1154         image_loader_free(imd->il);
1155         imd->il = NULL;
1156
1157         image_set_fd(imd, image_get_fd(source));
1158
1159
1160         if (source->il)
1161                 {
1162                 imd->il = source->il;
1163                 source->il = NULL;
1164
1165                 image_loader_sync_data(imd->il, source, imd);
1166
1167                 imd->delay_alter_type = source->delay_alter_type;
1168                 source->delay_alter_type = ALTER_NONE;
1169                 }
1170
1171         imd->color_profile_enable = source->color_profile_enable;
1172         imd->color_profile_input = source->color_profile_input;
1173         imd->color_profile_screen = source->color_profile_screen;
1174         imd->color_profile_use_image = source->color_profile_use_image;
1175         color_man_free((ColorMan *)imd->cm);
1176         imd->cm = NULL;
1177         if (source->cm)
1178                 {
1179                 ColorMan *cm;
1180
1181                 imd->cm = source->cm;
1182                 source->cm = NULL;
1183
1184                 cm = (ColorMan *)imd->cm;
1185                 cm->imd = imd;
1186                 cm->func_done_data = imd;
1187                 }
1188
1189         image_loader_free(imd->read_ahead_il);
1190         imd->read_ahead_il = source->read_ahead_il;
1191         source->read_ahead_il = NULL;
1192         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1193
1194         file_data_unref(imd->read_ahead_fd);
1195         imd->read_ahead_fd = source->read_ahead_fd;
1196         source->read_ahead_fd = NULL;
1197
1198         imd->completed = source->completed;
1199         imd->state = source->state;
1200         source->state = IMAGE_STATE_NONE;
1201
1202         imd->orientation = source->orientation;
1203         imd->desaturate = source->desaturate;
1204
1205         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1206
1207         if (imd->cm || imd->desaturate)
1208                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1209         else
1210                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1211
1212 }
1213
1214 /* manipulation */
1215
1216 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1217 {
1218         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1219 }
1220
1221 void image_reload(ImageWindow *imd)
1222 {
1223         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1224
1225         image_change_complete(imd, image_zoom_get(imd));
1226 }
1227
1228 void image_scroll(ImageWindow *imd, gint x, gint y)
1229 {
1230         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1231 }
1232
1233 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1234                            gdouble x_align, gdouble y_align)
1235 {
1236         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1237 }
1238
1239 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1240 {
1241         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1242 }
1243
1244 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1245 {
1246         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1247 }
1248
1249 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1250 {
1251         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1252 }
1253
1254 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1255 {
1256         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1257 }
1258
1259 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1260 {
1261         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1262 }
1263
1264 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1265 {
1266         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1267 }
1268
1269 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1270 {
1271         PixbufRenderer *pr;
1272         gdouble zoom;
1273         gint width, height;
1274
1275         pr = (PixbufRenderer *)imd->pr;
1276
1277         if (!pixbuf_renderer_get_pixbuf(pr) ||
1278             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1279
1280         if (vertical)
1281                 {
1282                 zoom = (gdouble)pr->window_height / height;
1283                 }
1284         else
1285                 {
1286                 zoom = (gdouble)pr->window_width / width;
1287                 }
1288
1289         if (zoom < 1.0)
1290                 {
1291                 zoom = 0.0 - 1.0 / zoom;
1292                 }
1293
1294         pixbuf_renderer_zoom_set(pr, zoom);
1295 }
1296
1297 gdouble image_zoom_get(ImageWindow *imd)
1298 {
1299         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1300 }
1301
1302 gdouble image_zoom_get_real(ImageWindow *imd)
1303 {
1304         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1305 }
1306
1307 gchar *image_zoom_get_as_text(ImageWindow *imd)
1308 {
1309         gdouble zoom;
1310         gdouble scale;
1311         gdouble l = 1.0;
1312         gdouble r = 1.0;
1313         gint pl = 0;
1314         gint pr = 0;
1315         gchar *approx = " ";
1316
1317         zoom = image_zoom_get(imd);
1318         scale = image_zoom_get_real(imd);
1319
1320         if (zoom > 0.0)
1321                 {
1322                 l = zoom;
1323                 }
1324         else if (zoom < 0.0)
1325                 {
1326                 r = 0.0 - zoom;
1327                 }
1328         else if (zoom == 0.0 && scale != 0.0)
1329                 {
1330                 if (scale >= 1.0)
1331                         {
1332                         l = scale;
1333                         }
1334                 else
1335                         {
1336                         r = 1.0 / scale;
1337                         }
1338                 approx = "~";
1339                 }
1340
1341         if (rint(l) != l) pl = 1;
1342         if (rint(r) != r) pr = 1;
1343
1344         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1345 }
1346
1347 gdouble image_zoom_get_default(ImageWindow *imd)
1348 {
1349         gdouble zoom = 1.0;
1350
1351         switch (options->image.zoom_mode)
1352         {
1353         case ZOOM_RESET_ORIGINAL:
1354                 break;
1355         case ZOOM_RESET_FIT_WINDOW:
1356                 zoom = 0.0;
1357                 break;
1358         case ZOOM_RESET_NONE:
1359                 if (imd) zoom = image_zoom_get(imd);
1360                 break;
1361         }
1362
1363         return zoom;
1364 }
1365
1366 /* read ahead */
1367
1368 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1369 {
1370         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1371
1372         if (fd)
1373                 {
1374                 if (!file_cache_get(image_get_cache(), fd))
1375                         {
1376                         image_read_ahead_set(imd, fd);
1377                         }
1378                 }
1379         else
1380                 {
1381                 image_read_ahead_cancel(imd);
1382                 }
1383 }
1384
1385 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1386 {
1387         ImageWindow *imd = data;
1388
1389         if (!imd || !image_get_pixbuf(imd) ||
1390             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1391             !imd->image_fd || /* nothing to reload */
1392             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1393             ) return;
1394
1395         if ((type & (NOTIFY_REREAD | NOTIFY_CHANGE)) && fd == imd->image_fd)
1396                 {
1397                 image_reload(imd);
1398                 }
1399 }
1400
1401 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1402 {
1403         if (!enable && imd->auto_refresh && imd->image_fd)
1404                 file_data_unregister_real_time_monitor(imd->image_fd);
1405
1406         if (enable && !imd->auto_refresh && imd->image_fd)
1407                 file_data_register_real_time_monitor(imd->image_fd);
1408
1409         imd->auto_refresh = enable;
1410 }
1411
1412 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1413 {
1414         imd->top_window_sync = allow_sync;
1415
1416         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1417 }
1418
1419 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1420 {
1421         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1422 }
1423
1424 void image_color_profile_set(ImageWindow *imd,
1425                              gint input_type, gint screen_type,
1426                              gboolean use_image)
1427 {
1428         if (!imd) return;
1429
1430         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS ||
1431             screen_type < 0 || screen_type > 1)
1432                 {
1433                 return;
1434                 }
1435
1436         imd->color_profile_input = input_type;
1437         imd->color_profile_screen = screen_type;
1438         imd->color_profile_use_image = use_image;
1439 }
1440
1441 gboolean image_color_profile_get(ImageWindow *imd,
1442                                  gint *input_type, gint *screen_type,
1443                                  gboolean *use_image)
1444 {
1445         if (!imd) return FALSE;
1446
1447         if (input_type) *input_type = imd->color_profile_input;
1448         if (screen_type) *screen_type = imd->color_profile_screen;
1449         if (use_image) *use_image = imd->color_profile_use_image;
1450
1451         return TRUE;
1452 }
1453
1454 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1455 {
1456         if (!imd) return;
1457
1458         if (imd->color_profile_enable == enable) return;
1459
1460         imd->color_profile_enable = enable;
1461 }
1462
1463 gboolean image_color_profile_get_use(ImageWindow *imd)
1464 {
1465         if (!imd) return FALSE;
1466
1467         return imd->color_profile_enable;
1468 }
1469
1470 gint image_color_profile_get_from_image(ImageWindow *imd)
1471 {
1472         if (!imd) return COLOR_PROFILE_NONE;
1473
1474         return imd->color_profile_from_image;
1475 }
1476
1477 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1478 {
1479         if (!imd ||
1480             imd->delay_flip == delay) return;
1481
1482         imd->delay_flip = delay;
1483
1484         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1485
1486         if (!imd->delay_flip && imd->il)
1487                 {
1488                 PixbufRenderer *pr;
1489
1490                 pr = PIXBUF_RENDERER(imd->pr);
1491                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1492                 pr->pixbuf = NULL;
1493
1494                 image_load_pixbuf_ready(imd);
1495                 }
1496 }
1497
1498 void image_to_root_window(ImageWindow *imd, gboolean scaled)
1499 {
1500         GdkScreen *screen;
1501         GdkWindow *rootwindow;
1502         GdkPixmap *pixmap;
1503         GdkPixbuf *pixbuf;
1504         GdkPixbuf *pb;
1505         gint width, height;
1506
1507         if (!imd) return;
1508
1509         pixbuf = image_get_pixbuf(imd);
1510         if (!pixbuf) return;
1511
1512         screen = gtk_widget_get_screen(imd->widget);
1513         rootwindow = gdk_screen_get_root_window(screen);
1514         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1515
1516         if (scaled)
1517                 {
1518                 width = gdk_screen_width();
1519                 height = gdk_screen_height();
1520                 }
1521         else
1522                 {
1523                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1524                 }
1525
1526         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1527
1528         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1529         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1530         gdk_window_clear(rootwindow);
1531         g_object_unref(pb);
1532         g_object_unref(pixmap);
1533
1534         gdk_flush();
1535 }
1536
1537 void image_select(ImageWindow *imd, gboolean select)
1538 {
1539         if (!imd->has_frame) return;
1540
1541         if (select)
1542                 {
1543                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1544                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1545                 }
1546         else
1547                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1548 }
1549
1550 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1551 {
1552         if (!imd->has_frame) return;
1553
1554         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1555         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
1556 }
1557
1558 /*
1559  *-------------------------------------------------------------------
1560  * prefs sync
1561  *-------------------------------------------------------------------
1562  */
1563
1564 static void image_options_set(ImageWindow *imd)
1565 {
1566         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1567                                         "zoom_2pass", options->image.zoom_2pass,
1568                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1569                                         "dither_quality", options->image.dither_quality,
1570                                         "scroll_reset", options->image.scroll_reset_method,
1571                                         "cache_display", options->image.tile_cache_max,
1572                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1573                                         "window_limit", options->image.limit_window_size,
1574                                         "window_limit_value", options->image.max_window_size,
1575                                         "autofit_limit", options->image.limit_autofit_size,
1576                                         "autofit_limit_value", options->image.max_autofit_size,
1577
1578                                         NULL);
1579
1580         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1581 }
1582
1583 void image_options_sync(void)
1584 {
1585         GList *work;
1586
1587         work = image_list;
1588         while (work)
1589                 {
1590                 ImageWindow *imd;
1591
1592                 imd = work->data;
1593                 work = work->next;
1594
1595                 image_options_set(imd);
1596                 }
1597 }
1598
1599 /*
1600  *-------------------------------------------------------------------
1601  * init / destroy
1602  *-------------------------------------------------------------------
1603  */
1604
1605 static void image_free(ImageWindow *imd)
1606 {
1607         image_list = g_list_remove(image_list, imd);
1608
1609         if (imd->auto_refresh && imd->image_fd)
1610                 file_data_unregister_real_time_monitor(imd->image_fd);
1611
1612         file_data_unregister_notify_func(image_notify_cb, imd);
1613
1614         image_reset(imd);
1615
1616         image_read_ahead_cancel(imd);
1617
1618         file_data_unref(imd->image_fd);
1619         g_free(imd->title);
1620         g_free(imd->title_right);
1621         g_free(imd);
1622 }
1623
1624 static void image_destroy_cb(GtkObject *widget, gpointer data)
1625 {
1626         ImageWindow *imd = data;
1627         image_free(imd);
1628 }
1629
1630 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1631 {
1632         gtk_paint_flat_box(widget->style,
1633                            widget->window,
1634                            widget->state,
1635                            (GTK_FRAME(widget))->shadow_type,
1636                            NULL,
1637                            widget,
1638                            NULL,
1639                            widget->allocation.x + 3, widget->allocation.y + 3,
1640                            widget->allocation.width - 6, widget->allocation.height - 6);
1641
1642
1643         return FALSE;
1644 }
1645
1646
1647 void image_set_frame(ImageWindow *imd, gboolean frame)
1648 {
1649         frame = !!frame;
1650
1651         if (frame == imd->has_frame) return;
1652
1653         gtk_widget_hide(imd->pr);
1654
1655         if (frame)
1656                 {
1657                 imd->frame = gtk_frame_new(NULL);
1658 #if GTK_CHECK_VERSION(2,12,0)
1659                 g_object_ref(imd->pr);
1660 #else
1661                 gtk_widget_ref(imd->pr);
1662 #endif
1663                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1664                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1665
1666 #if GTK_CHECK_VERSION(2,12,0)
1667                 g_object_unref(imd->pr);
1668 #else
1669                 gtk_widget_unref(imd->pr);
1670 #endif
1671                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1672                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1673
1674                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1675                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1676                                  G_CALLBACK(image_focus_in_cb), imd);
1677                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1678                                  G_CALLBACK(image_focus_out_cb), imd);
1679
1680                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1681                                        G_CALLBACK(image_focus_expose), imd);
1682
1683 #if GTK_CHECK_VERSION(2,14,0)
1684                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1685 #else
1686                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1687 #endif
1688                 gtk_widget_show(imd->frame);
1689                 }
1690         else
1691                 {
1692 #if GTK_CHECK_VERSION(2,12,0)
1693                 g_object_ref(imd->pr);
1694 #else
1695                 gtk_widget_ref(imd->pr);
1696 #endif
1697                 if (imd->frame)
1698                         {
1699                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1700                         gtk_widget_destroy(imd->frame);
1701                         imd->frame = NULL;
1702                         }
1703 #if GTK_CHECK_VERSION(2,14,0)
1704                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1705 #else
1706                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1707 #endif
1708
1709 #if GTK_CHECK_VERSION(2,12,0)
1710                 g_object_unref(imd->pr);
1711 #else
1712                 gtk_widget_unref(imd->pr);
1713 #endif
1714                 }
1715
1716         gtk_widget_show(imd->pr);
1717
1718         imd->has_frame = frame;
1719 }
1720
1721 ImageWindow *image_new(gboolean frame)
1722 {
1723         ImageWindow *imd;
1724
1725         imd = g_new0(ImageWindow, 1);
1726
1727         imd->unknown = TRUE;
1728         imd->has_frame = -1; /* not initialized; for image_set_frame */
1729         imd->delay_alter_type = ALTER_NONE;
1730         imd->state = IMAGE_STATE_NONE;
1731         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1732         imd->orientation = 1;
1733
1734         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1735
1736         image_options_set(imd);
1737
1738         imd->widget = gtk_vbox_new(0, 0);
1739
1740         image_set_frame(imd, frame);
1741
1742         image_set_selectable(imd, 0);
1743
1744         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1745                          G_CALLBACK(image_click_cb), imd);
1746         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1747                          G_CALLBACK(image_scroll_notify_cb), imd);
1748
1749         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1750                          G_CALLBACK(image_scroll_cb), imd);
1751
1752         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1753                          G_CALLBACK(image_destroy_cb), imd);
1754
1755         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1756                          G_CALLBACK(image_zoom_cb), imd);
1757         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1758                          G_CALLBACK(image_render_complete_cb), imd);
1759         g_signal_connect(G_OBJECT(imd->pr), "drag",
1760                          G_CALLBACK(image_drag_cb), imd);
1761
1762         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1763
1764         image_list = g_list_append(image_list, imd);
1765
1766         return imd;
1767 }
1768 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */