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         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                 return TRUE;
 352                 }
 353
 354         return FALSE;
 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(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_DESATURATE:
 397                         imd->desaturate = !imd->desaturate;
 398                         break;
 399                 case ALTER_NONE:
 400                         imd->orientation = imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1;
 401                         imd->desaturate = FALSE;
 402                         break;
 403                 default:
 404                         return;
 405                         break;
 406                 }
 407
 408         if (type != ALTER_NONE && type != ALTER_DESATURATE)
 409                 {
 410                 if (imd->image_fd->user_orientation == 0) file_data_ref(imd->image_fd);
 411                 imd->image_fd->user_orientation = imd->orientation;
 412                 }
 413         else
 414                 {
 415                 if (imd->image_fd->user_orientation != 0) file_data_unref(imd->image_fd);
 416                 imd->image_fd->user_orientation = 0;
 417                 }
 418
 419         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 420         if (imd->cm || imd->desaturate)
 421                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 422         else
 423                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 424 }
 425
 426
 427 /*
 428  *-------------------------------------------------------------------
 429  * read ahead (prebuffer)
 430  *-------------------------------------------------------------------
 431  */
 432
 433 static void image_read_ahead_cancel(ImageWindow *imd)
 434 {
 435         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 436
 437         image_loader_free(imd->read_ahead_il);
 438         imd->read_ahead_il = NULL;
 439
 440         file_data_unref(imd->read_ahead_fd);
 441         imd->read_ahead_fd = NULL;
 442 }
 443
 444 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 445 {
 446         ImageWindow *imd = data;
 447
 448         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 449
 450         if (!imd->read_ahead_fd->pixbuf)
 451                 {
 452                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 453                 if (imd->read_ahead_fd->pixbuf)
 454                         {
 455                         g_object_ref(imd->read_ahead_fd->pixbuf);
 456                         image_cache_set(imd, imd->read_ahead_fd);
 457                         }
 458                 }
 459         image_loader_free(imd->read_ahead_il);
 460         imd->read_ahead_il = NULL;
 461
 462         image_complete_util(imd, TRUE);
 463 }
 464
 465 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 466 {
 467         /* we even treat errors as success, maybe at least some of the file was ok */
 468         image_read_ahead_done_cb(il, data);
 469 }
 470
 471 static void image_read_ahead_start(ImageWindow *imd)
 472 {
 473         /* already started ? */
 474         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 475
 476         /* still loading ?, do later */
 477         if (imd->il /*|| imd->cm*/) return;
 478
 479         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 480
 481         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 482
 483         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 484
 485         g_signal_connect(G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 486         g_signal_connect(G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 487
 488         if (!image_loader_start(imd->read_ahead_il))
 489                 {
 490                 image_read_ahead_cancel(imd);
 491                 image_complete_util(imd, TRUE);
 492                 }
 493 }
 494
 495 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 496 {
 497         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 498
 499         image_read_ahead_cancel(imd);
 500
 501         imd->read_ahead_fd = file_data_ref(fd);
 502
 503         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 504
 505         image_read_ahead_start(imd);
 506 }
 507
 508 /*
 509  *-------------------------------------------------------------------
 510  * post buffering
 511  *-------------------------------------------------------------------
 512  */
 513
 514 static void image_cache_release_cb(FileData *fd)
 515 {
 516         g_object_unref(fd->pixbuf);
 517         fd->pixbuf = NULL;
 518 }
 519
 520 static FileCacheData *image_get_cache(void)
 521 {
 522         static FileCacheData *cache = NULL;
 523         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 524         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 525         return cache;
 526 }
 527
 528 static void image_cache_set(ImageWindow *imd, FileData *fd)
 529 {
 530         g_assert(fd->pixbuf);
 531
 532         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 533         file_data_send_notification(fd, NOTIFY_PIXBUF); /* to update histogram */
 534 }
 535
 536 static gint image_cache_get(ImageWindow *imd)
 537 {
 538         gint success;
 539
 540         success = file_cache_get(image_get_cache(), imd->image_fd);
 541         if (success)
 542                 {
 543                 g_assert(imd->image_fd->pixbuf);
 544                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 545                 }
 546
 547 //      file_cache_dump(image_get_cache());
 548         return success;
 549 }
 550
 551 /*
 552  *-------------------------------------------------------------------
 553  * loading
 554  *-------------------------------------------------------------------
 555  */
 556
 557 static void image_load_pixbuf_ready(ImageWindow *imd)
 558 {
 559         if (image_get_pixbuf(imd) || !imd->il) return;
 560
 561         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 562 }
 563
 564 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 565 {
 566         ImageWindow *imd = data;
 567         PixbufRenderer *pr;
 568
 569         pr = (PixbufRenderer *)imd->pr;
 570
 571         if (imd->delay_flip &&
 572             pr->pixbuf != image_loader_get_pixbuf(il))
 573                 {
 574                 return;
 575                 }
 576
 577         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 578
 579         pixbuf_renderer_area_changed(pr, x, y, w, h);
 580 }
 581
 582 static void image_load_done_cb(ImageLoader *il, gpointer data)
 583 {
 584         ImageWindow *imd = data;
 585
 586         DEBUG_1("%s image done", get_exec_time());
 587
 588         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 589                 {
 590                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
 591                 image_cache_set(imd, imd->image_fd);
 592                 }
 593         /* call the callback triggered by image_state after fd->pixbuf is set */
 594         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 595         image_state_unset(imd, IMAGE_STATE_LOADING);
 596
 597         if (!image_loader_get_pixbuf(imd->il))
 598                 {
 599                 GdkPixbuf *pixbuf;
 600
 601                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 602                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 603                 g_object_unref(pixbuf);
 604
 605                 imd->unknown = TRUE;
 606                 }
 607         else if (imd->delay_flip &&
 608             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 609                 {
 610                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 611                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 612                 }
 613
 614         image_loader_free(imd->il);
 615         imd->il = NULL;
 616
 617 //      image_post_process(imd, TRUE);
 618
 619         image_read_ahead_start(imd);
 620 }
 621
 622 static void image_load_error_cb(ImageLoader *il, gpointer data)
 623 {
 624         DEBUG_1("%s image error", get_exec_time());
 625
 626         /* even on error handle it like it was done,
 627          * since we have a pixbuf with _something_ */
 628
 629         image_load_done_cb(il, data);
 630 }
 631
 632 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
 633 {
 634         g_assert(imd->il);
 635         if (override_old_signals)
 636                 {
 637                 /* override the old signals */
 638                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 639                 }
 640
 641         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 642         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 643         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 644 }
 645
 646 /* this read ahead is located here merely for the callbacks, above */
 647
 648 static gboolean image_read_ahead_check(ImageWindow *imd)
 649 {
 650         if (!imd->read_ahead_fd) return FALSE;
 651         if (imd->il) return FALSE;
 652
 653         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 654                 {
 655                 image_read_ahead_cancel(imd);
 656                 return FALSE;
 657                 }
 658
 659         if (imd->read_ahead_il)
 660                 {
 661                 imd->il = imd->read_ahead_il;
 662                 imd->read_ahead_il = NULL;
 663
 664                 image_load_set_signals(imd, TRUE);
 665
 666                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 667                 image_state_set(imd, IMAGE_STATE_LOADING);
 668
 669                 if (!imd->delay_flip)
 670                         {
 671                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 672                         }
 673
 674                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 675
 676                 file_data_unref(imd->read_ahead_fd);
 677                 imd->read_ahead_fd = NULL;
 678                 return TRUE;
 679                 }
 680         else if (imd->read_ahead_fd->pixbuf)
 681                 {
 682                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
 683
 684                 file_data_unref(imd->read_ahead_fd);
 685                 imd->read_ahead_fd = NULL;
 686
 687 //              image_post_process(imd, FALSE);
 688                 return TRUE;
 689                 }
 690
 691         image_read_ahead_cancel(imd);
 692         return FALSE;
 693 }
 694
 695 static gboolean image_load_begin(ImageWindow *imd, FileData *fd)
 696 {
 697         DEBUG_1("%s image begin", get_exec_time());
 698
 699         if (imd->il) return FALSE;
 700
 701         imd->completed = FALSE;
 702         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 703
 704         if (image_cache_get(imd))
 705                 {
 706                 DEBUG_1("from cache: %s", imd->image_fd->path);
 707                 return TRUE;
 708                 }
 709
 710         if (image_read_ahead_check(imd))
 711                 {
 712                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 713                 return TRUE;
 714                 }
 715
 716         if (!imd->delay_flip && image_get_pixbuf(imd))
 717                 {
 718                 PixbufRenderer *pr;
 719
 720                 pr = PIXBUF_RENDERER(imd->pr);
 721                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 722                 pr->pixbuf = NULL;
 723                 }
 724
 725         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 726
 727         imd->il = image_loader_new(fd);
 728
 729         image_load_set_signals(imd, FALSE);
 730
 731         if (!image_loader_start(imd->il))
 732                 {
 733                 DEBUG_1("image start error");
 734
 735                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 736
 737                 image_loader_free(imd->il);
 738                 imd->il = NULL;
 739
 740                 image_complete_util(imd, FALSE);
 741
 742                 return FALSE;
 743                 }
 744
 745         image_state_set(imd, IMAGE_STATE_LOADING);
 746
 747 /*
 748         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
 749                 {
 750                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 751                 }
 752 */
 753         return TRUE;
 754 }
 755
 756 static void image_reset(ImageWindow *imd)
 757 {
 758         /* stops anything currently being done */
 759
 760         DEBUG_1("%s image reset", get_exec_time());
 761
 762         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 763
 764         image_loader_free(imd->il);
 765         imd->il = NULL;
 766
 767         color_man_free((ColorMan *)imd->cm);
 768         imd->cm = NULL;
 769
 770         imd->delay_alter_type = ALTER_NONE;
 771
 772         image_state_set(imd, IMAGE_STATE_NONE);
 773 }
 774
 775 /*
 776  *-------------------------------------------------------------------
 777  * image changer
 778  *-------------------------------------------------------------------
 779  */
 780
 781 static void image_change_complete(ImageWindow *imd, gdouble zoom)
 782 {
 783         image_reset(imd);
 784         imd->unknown = TRUE;
 785
 786         if (!imd->image_fd)
 787                 {
 788                 image_change_pixbuf(imd, NULL, zoom, FALSE);
 789                 }
 790         else
 791                 {
 792
 793                 if (is_readable_file(imd->image_fd->path))
 794                         {
 795                         PixbufRenderer *pr;
 796
 797                         pr = PIXBUF_RENDERER(imd->pr);
 798                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
 799
 800                         if (image_load_begin(imd, imd->image_fd))
 801                                 {
 802                                 imd->unknown = FALSE;
 803                                 }
 804                         }
 805
 806                 if (imd->unknown == TRUE)
 807                         {
 808                         GdkPixbuf *pixbuf;
 809
 810                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 811                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 812                         g_object_unref(pixbuf);
 813                         }
 814                 }
 815
 816         image_update_util(imd);
 817 }
 818
 819 static void image_change_real(ImageWindow *imd, FileData *fd,
 820                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 821 {
 822
 823         imd->collection = cd;
 824         imd->collection_info = info;
 825
 826         if (imd->auto_refresh && imd->image_fd)
 827                 file_data_unregister_real_time_monitor(imd->image_fd);
 828
 829         file_data_unref(imd->image_fd);
 830         imd->image_fd = file_data_ref(fd);
 831
 832
 833         image_change_complete(imd, zoom);
 834
 835         image_update_title(imd);
 836         image_state_set(imd, IMAGE_STATE_IMAGE);
 837
 838         if (imd->auto_refresh && imd->image_fd)
 839                 file_data_register_real_time_monitor(imd->image_fd);
 840 }
 841
 842 /*
 843  *-------------------------------------------------------------------
 844  * focus stuff
 845  *-------------------------------------------------------------------
 846  */
 847
 848 static void image_focus_paint(ImageWindow *imd, gboolean has_focus, GdkRectangle *area)
 849 {
 850         GtkWidget *widget;
 851
 852         widget = imd->widget;
 853         if (!widget->window) return;
 854
 855         if (has_focus)
 856                 {
 857                 gtk_paint_focus(widget->style, widget->window, GTK_STATE_ACTIVE,
 858                                 area, widget, "image_window",
 859                                 widget->allocation.x, widget->allocation.y,
 860                                 widget->allocation.width - 1, widget->allocation.height - 1);
 861                 }
 862         else
 863                 {
 864                 gtk_paint_shadow(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
 865                                  area, widget, "image_window",
 866                                  widget->allocation.x, widget->allocation.y,
 867                                  widget->allocation.width - 1, widget->allocation.height - 1);
 868                 }
 869 }
 870
 871 static gboolean image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 872 {
 873         ImageWindow *imd = data;
 874
 875         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 876         return TRUE;
 877 }
 878
 879 static gboolean image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 880 {
 881         ImageWindow *imd = data;
 882
 883         GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 884         image_focus_paint(imd, TRUE, NULL);
 885
 886         if (imd->func_focus_in)
 887                 {
 888                 imd->func_focus_in(imd, imd->data_focus_in);
 889                 }
 890
 891         return TRUE;
 892 }
 893
 894 static gboolean image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 895 {
 896         ImageWindow *imd = data;
 897
 898         GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 899         image_focus_paint(imd, FALSE, NULL);
 900
 901         return TRUE;
 902 }
 903
 904 static gboolean image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 905 {
 906         ImageWindow *imd = data;
 907
 908         if (imd->func_scroll &&
 909             event && event->type == GDK_SCROLL)
 910                 {
 911                 imd->func_scroll(imd, event, imd->data_scroll);
 912                 return TRUE;
 913                 }
 914
 915         return FALSE;
 916 }
 917
 918 /*
 919  *-------------------------------------------------------------------
 920  * public interface
 921  *-------------------------------------------------------------------
 922  */
 923
 924 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 925                          const gchar *title, const gchar *title_right, gboolean show_zoom)
 926 {
 927         imd->top_window = window;
 928         g_free(imd->title);
 929         imd->title = g_strdup(title);
 930         g_free(imd->title_right);
 931         imd->title_right = g_strdup(title_right);
 932         imd->title_show_zoom = show_zoom;
 933
 934         if (!options->image.fit_window_to_image) window = NULL;
 935
 936         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 937
 938         image_update_title(imd);
 939 }
 940
 941 void image_set_update_func(ImageWindow *imd,
 942                            void (*func)(ImageWindow *imd, gpointer data),
 943                            gpointer data)
 944 {
 945         imd->func_update = func;
 946         imd->data_update = data;
 947 }
 948
 949 void image_set_complete_func(ImageWindow *imd,
 950                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
 951                              gpointer data)
 952 {
 953         imd->func_complete = func;
 954         imd->data_complete = data;
 955 }
 956
 957 void image_set_state_func(ImageWindow *imd,
 958                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 959                         gpointer data)
 960 {
 961         imd->func_state = func;
 962         imd->data_state = data;
 963 }
 964
 965
 966 void image_set_button_func(ImageWindow *imd,
 967                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
 968                            gpointer data)
 969 {
 970         imd->func_button = func;
 971         imd->data_button = data;
 972 }
 973
 974 void image_set_drag_func(ImageWindow *imd,
 975                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
 976                            gpointer data)
 977 {
 978         imd->func_drag = func;
 979         imd->data_drag = data;
 980 }
 981
 982 void image_set_scroll_func(ImageWindow *imd,
 983                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
 984                            gpointer data)
 985 {
 986         imd->func_scroll = func;
 987         imd->data_scroll = data;
 988 }
 989
 990 void image_set_scroll_notify_func(ImageWindow *imd,
 991                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
 992                                   gpointer data)
 993 {
 994         imd->func_scroll_notify = func;
 995         imd->data_scroll_notify = data;
 996 }
 997
 998 void image_set_focus_in_func(ImageWindow *imd,
 999                            void (*func)(ImageWindow *, gpointer),
1000                            gpointer data)
1001 {
1002         imd->func_focus_in = func;
1003         imd->data_focus_in = data;
1004 }
1005
1006 /* path, name */
1007
1008 const gchar *image_get_path(ImageWindow *imd)
1009 {
1010         if (imd->image_fd == NULL) return NULL;
1011         return imd->image_fd->path;
1012 }
1013
1014 const gchar *image_get_name(ImageWindow *imd)
1015 {
1016         if (imd->image_fd == NULL) return NULL;
1017         return imd->image_fd->name;
1018 }
1019
1020 FileData *image_get_fd(ImageWindow *imd)
1021 {
1022         return imd->image_fd;
1023 }
1024
1025 /* merely changes path string, does not change the image! */
1026 void image_set_fd(ImageWindow *imd, FileData *fd)
1027 {
1028         if (imd->auto_refresh && imd->image_fd)
1029                 file_data_unregister_real_time_monitor(imd->image_fd);
1030
1031         file_data_unref(imd->image_fd);
1032         imd->image_fd = file_data_ref(fd);
1033
1034         image_update_title(imd);
1035         image_state_set(imd, IMAGE_STATE_IMAGE);
1036
1037         if (imd->auto_refresh && imd->image_fd)
1038                 file_data_register_real_time_monitor(imd->image_fd);
1039 }
1040
1041 /* load a new image */
1042
1043 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1044 {
1045         if (imd->image_fd == fd) return;
1046
1047         image_change_real(imd, fd, NULL, NULL, zoom);
1048 }
1049
1050 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1051 {
1052         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1053 }
1054
1055 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1056 {
1057         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1058 }
1059
1060 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1061 {
1062
1063
1064         /* read_exif and similar functions can actually notice that the file has changed and triger a notification
1065         that removes the pixbuf from cache and unref it. Therefore we must ref it here before it is taken over by the renderer. */
1066         if (pixbuf) g_object_ref(pixbuf);
1067
1068         if (imd->image_fd)
1069                 {
1070                 if (imd->image_fd->user_orientation)
1071                         {
1072                         imd->orientation = imd->image_fd->user_orientation;
1073                         }
1074                 else if (options->image.exif_rotate_enable)
1075                         {
1076                         imd->orientation = metadata_read_int(imd->image_fd, "Exif.Image.Orientation", EXIF_ORIENTATION_TOP_LEFT);
1077                         imd->image_fd->exif_orientation = imd->orientation;
1078                         }
1079                 }
1080
1081         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1082         if (imd->cm)
1083                 {
1084                 color_man_free(imd->cm);
1085                 imd->cm = NULL;
1086                 }
1087
1088         if (lazy)
1089                 {
1090                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation);
1091                 }
1092         else
1093                 {
1094                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1095                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1096                 }
1097
1098         if (pixbuf) g_object_unref(pixbuf);
1099
1100         if (imd->color_profile_enable)
1101                 {
1102                 image_post_process_color(imd, 0, FALSE); /* TODO: error handling */
1103                 }
1104
1105         if (imd->cm || imd->desaturate)
1106                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1107
1108         image_state_set(imd, IMAGE_STATE_IMAGE);
1109 }
1110
1111 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1112 {
1113         if (!cd || !info || !g_list_find(cd->list, info)) return;
1114
1115         image_change_real(imd, info->fd, cd, info, zoom);
1116 }
1117
1118 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1119 {
1120         if (collection_to_number(imd->collection) >= 0)
1121                 {
1122                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1123                         {
1124                         if (info) *info = imd->collection_info;
1125                         }
1126                 else
1127                         {
1128                         if (info) *info = NULL;
1129                         }
1130                 return imd->collection;
1131                 }
1132
1133         if (info) *info = NULL;
1134         return NULL;
1135 }
1136
1137 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1138 {
1139         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1140                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1141
1142         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1143                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1144 }
1145
1146 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1147 {
1148         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1149                 g_signal_connect(G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1150
1151         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1152                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1153
1154         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1155                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1156 }
1157
1158 /* this is more like a move function
1159  * it moves most data from source to imd
1160  */
1161 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1162 {
1163         if (imd == source) return;
1164
1165         imd->unknown = source->unknown;
1166
1167         imd->collection = source->collection;
1168         imd->collection_info = source->collection_info;
1169
1170         image_loader_free(imd->il);
1171         imd->il = NULL;
1172
1173         image_set_fd(imd, image_get_fd(source));
1174
1175
1176         if (source->il)
1177                 {
1178                 imd->il = source->il;
1179                 source->il = NULL;
1180
1181                 image_loader_sync_data(imd->il, source, imd);
1182
1183                 imd->delay_alter_type = source->delay_alter_type;
1184                 source->delay_alter_type = ALTER_NONE;
1185                 }
1186
1187         imd->color_profile_enable = source->color_profile_enable;
1188         imd->color_profile_input = source->color_profile_input;
1189         imd->color_profile_use_image = source->color_profile_use_image;
1190         color_man_free((ColorMan *)imd->cm);
1191         imd->cm = NULL;
1192         if (source->cm)
1193                 {
1194                 ColorMan *cm;
1195
1196                 imd->cm = source->cm;
1197                 source->cm = NULL;
1198
1199                 cm = (ColorMan *)imd->cm;
1200                 cm->imd = imd;
1201                 cm->func_done_data = imd;
1202                 }
1203
1204         image_loader_free(imd->read_ahead_il);
1205         imd->read_ahead_il = source->read_ahead_il;
1206         source->read_ahead_il = NULL;
1207         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1208
1209         file_data_unref(imd->read_ahead_fd);
1210         imd->read_ahead_fd = source->read_ahead_fd;
1211         source->read_ahead_fd = NULL;
1212
1213         imd->completed = source->completed;
1214         imd->state = source->state;
1215         source->state = IMAGE_STATE_NONE;
1216
1217         imd->orientation = source->orientation;
1218         imd->desaturate = source->desaturate;
1219
1220         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1221
1222         if (imd->cm || imd->desaturate)
1223                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1224         else
1225                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1226
1227 }
1228
1229 /* manipulation */
1230
1231 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1232 {
1233         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1234 }
1235
1236 void image_reload(ImageWindow *imd)
1237 {
1238         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1239
1240         image_change_complete(imd, image_zoom_get(imd));
1241 }
1242
1243 void image_scroll(ImageWindow *imd, gint x, gint y)
1244 {
1245         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1246 }
1247
1248 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1249                            gdouble x_align, gdouble y_align)
1250 {
1251         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1252 }
1253
1254 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1255 {
1256         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1257 }
1258
1259 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1260 {
1261         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1262 }
1263
1264 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1265 {
1266         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1267 }
1268
1269 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1270 {
1271         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1272 }
1273
1274 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1275 {
1276         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1277 }
1278
1279 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1280 {
1281         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1282 }
1283
1284 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1285 {
1286         PixbufRenderer *pr;
1287         gdouble zoom;
1288         gint width, height;
1289
1290         pr = (PixbufRenderer *)imd->pr;
1291
1292         if (!pixbuf_renderer_get_pixbuf(pr) ||
1293             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1294
1295         if (vertical)
1296                 {
1297                 zoom = (gdouble)pr->window_height / height;
1298                 }
1299         else
1300                 {
1301                 zoom = (gdouble)pr->window_width / width;
1302                 }
1303
1304         if (zoom < 1.0)
1305                 {
1306                 zoom = 0.0 - 1.0 / zoom;
1307                 }
1308
1309         pixbuf_renderer_zoom_set(pr, zoom);
1310 }
1311
1312 gdouble image_zoom_get(ImageWindow *imd)
1313 {
1314         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1315 }
1316
1317 gdouble image_zoom_get_real(ImageWindow *imd)
1318 {
1319         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1320 }
1321
1322 gchar *image_zoom_get_as_text(ImageWindow *imd)
1323 {
1324         gdouble zoom;
1325         gdouble scale;
1326         gdouble l = 1.0;
1327         gdouble r = 1.0;
1328         gint pl = 0;
1329         gint pr = 0;
1330         gchar *approx = " ";
1331
1332         zoom = image_zoom_get(imd);
1333         scale = image_zoom_get_real(imd);
1334
1335         if (zoom > 0.0)
1336                 {
1337                 l = zoom;
1338                 }
1339         else if (zoom < 0.0)
1340                 {
1341                 r = 0.0 - zoom;
1342                 }
1343         else if (zoom == 0.0 && scale != 0.0)
1344                 {
1345                 if (scale >= 1.0)
1346                         {
1347                         l = scale;
1348                         }
1349                 else
1350                         {
1351                         r = 1.0 / scale;
1352                         }
1353                 approx = "~";
1354                 }
1355
1356         if (rint(l) != l) pl = 1;
1357         if (rint(r) != r) pr = 1;
1358
1359         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1360 }
1361
1362 gdouble image_zoom_get_default(ImageWindow *imd)
1363 {
1364         gdouble zoom = 1.0;
1365
1366         switch (options->image.zoom_mode)
1367         {
1368         case ZOOM_RESET_ORIGINAL:
1369                 break;
1370         case ZOOM_RESET_FIT_WINDOW:
1371                 zoom = 0.0;
1372                 break;
1373         case ZOOM_RESET_NONE:
1374                 if (imd) zoom = image_zoom_get(imd);
1375                 break;
1376         }
1377
1378         return zoom;
1379 }
1380
1381 /* read ahead */
1382
1383 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1384 {
1385         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1386
1387         if (fd)
1388                 {
1389                 if (!file_cache_get(image_get_cache(), fd))
1390                         {
1391                         image_read_ahead_set(imd, fd);
1392                         }
1393                 }
1394         else
1395                 {
1396                 image_read_ahead_cancel(imd);
1397                 }
1398 }
1399
1400 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1401 {
1402         ImageWindow *imd = data;
1403
1404         if (!imd || !image_get_pixbuf(imd) ||
1405             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1406             !imd->image_fd || /* nothing to reload */
1407             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1408             ) return;
1409
1410         if ((type & (NOTIFY_REREAD | NOTIFY_CHANGE)) && fd == imd->image_fd)
1411                 {
1412                 DEBUG_1("Notify image: %s %04x", fd->path, type);
1413                 image_reload(imd);
1414                 }
1415 }
1416
1417 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1418 {
1419         if (!enable && imd->auto_refresh && imd->image_fd)
1420                 file_data_unregister_real_time_monitor(imd->image_fd);
1421
1422         if (enable && !imd->auto_refresh && imd->image_fd)
1423                 file_data_register_real_time_monitor(imd->image_fd);
1424
1425         imd->auto_refresh = enable;
1426 }
1427
1428 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1429 {
1430         imd->top_window_sync = allow_sync;
1431
1432         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1433 }
1434
1435 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1436 {
1437         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1438 }
1439
1440 void image_color_profile_set(ImageWindow *imd,
1441                              gint input_type,
1442                              gboolean use_image)
1443 {
1444         if (!imd) return;
1445
1446         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
1447                 {
1448                 return;
1449                 }
1450
1451         imd->color_profile_input = input_type;
1452         imd->color_profile_use_image = use_image;
1453 }
1454
1455 gboolean image_color_profile_get(ImageWindow *imd,
1456                                  gint *input_type,
1457                                  gboolean *use_image)
1458 {
1459         if (!imd) return FALSE;
1460
1461         if (input_type) *input_type = imd->color_profile_input;
1462         if (use_image) *use_image = imd->color_profile_use_image;
1463
1464         return TRUE;
1465 }
1466
1467 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1468 {
1469         if (!imd) return;
1470
1471         if (imd->color_profile_enable == enable) return;
1472
1473         imd->color_profile_enable = enable;
1474 }
1475
1476 gboolean image_color_profile_get_use(ImageWindow *imd)
1477 {
1478         if (!imd) return FALSE;
1479
1480         return imd->color_profile_enable;
1481 }
1482
1483 gint image_color_profile_get_from_image(ImageWindow *imd)
1484 {
1485         if (!imd) return COLOR_PROFILE_NONE;
1486
1487         return imd->color_profile_from_image;
1488 }
1489
1490 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1491 {
1492         if (!imd ||
1493             imd->delay_flip == delay) return;
1494
1495         imd->delay_flip = delay;
1496
1497         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1498
1499         if (!imd->delay_flip && imd->il)
1500                 {
1501                 PixbufRenderer *pr;
1502
1503                 pr = PIXBUF_RENDERER(imd->pr);
1504                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1505                 pr->pixbuf = NULL;
1506
1507                 image_load_pixbuf_ready(imd);
1508                 }
1509 }
1510
1511 void image_to_root_window(ImageWindow *imd, gboolean scaled)
1512 {
1513         GdkScreen *screen;
1514         GdkWindow *rootwindow;
1515         GdkPixmap *pixmap;
1516         GdkPixbuf *pixbuf;
1517         GdkPixbuf *pb;
1518         gint width, height;
1519
1520         if (!imd) return;
1521
1522         pixbuf = image_get_pixbuf(imd);
1523         if (!pixbuf) return;
1524
1525         screen = gtk_widget_get_screen(imd->widget);
1526         rootwindow = gdk_screen_get_root_window(screen);
1527         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1528
1529         if (scaled)
1530                 {
1531                 width = gdk_screen_width();
1532                 height = gdk_screen_height();
1533                 }
1534         else
1535                 {
1536                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1537                 }
1538
1539         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1540
1541         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1542         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1543         gdk_window_clear(rootwindow);
1544         g_object_unref(pb);
1545         g_object_unref(pixmap);
1546
1547         gdk_flush();
1548 }
1549
1550 void image_select(ImageWindow *imd, gboolean select)
1551 {
1552         if (!imd->has_frame) return;
1553
1554         if (select)
1555                 {
1556                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1557                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1558                 }
1559         else
1560                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1561 }
1562
1563 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1564 {
1565         if (!imd->has_frame) return;
1566
1567         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1568         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
1569 }
1570
1571 void image_grab_focus(ImageWindow *imd)
1572 {
1573         if (imd->has_frame)
1574                 {
1575                 gtk_widget_grab_focus(imd->frame);
1576                 }
1577         else
1578                 {
1579                 gtk_widget_grab_focus(imd->widget);
1580                 }
1581 }
1582
1583
1584 /*
1585  *-------------------------------------------------------------------
1586  * prefs sync
1587  *-------------------------------------------------------------------
1588  */
1589
1590 static void image_options_set(ImageWindow *imd)
1591 {
1592         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1593                                         "zoom_2pass", options->image.zoom_2pass,
1594                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1595                                         "dither_quality", options->image.dither_quality,
1596                                         "scroll_reset", options->image.scroll_reset_method,
1597                                         "cache_display", options->image.tile_cache_max,
1598                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1599                                         "window_limit", options->image.limit_window_size,
1600                                         "window_limit_value", options->image.max_window_size,
1601                                         "autofit_limit", options->image.limit_autofit_size,
1602                                         "autofit_limit_value", options->image.max_autofit_size,
1603
1604                                         NULL);
1605
1606         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1607 }
1608
1609 void image_options_sync(void)
1610 {
1611         GList *work;
1612
1613         work = image_list;
1614         while (work)
1615                 {
1616                 ImageWindow *imd;
1617
1618                 imd = work->data;
1619                 work = work->next;
1620
1621                 image_options_set(imd);
1622                 }
1623 }
1624
1625 /*
1626  *-------------------------------------------------------------------
1627  * init / destroy
1628  *-------------------------------------------------------------------
1629  */
1630
1631 static void image_free(ImageWindow *imd)
1632 {
1633         image_list = g_list_remove(image_list, imd);
1634
1635         if (imd->auto_refresh && imd->image_fd)
1636                 file_data_unregister_real_time_monitor(imd->image_fd);
1637
1638         file_data_unregister_notify_func(image_notify_cb, imd);
1639
1640         image_reset(imd);
1641
1642         image_read_ahead_cancel(imd);
1643
1644         file_data_unref(imd->image_fd);
1645         g_free(imd->title);
1646         g_free(imd->title_right);
1647         g_free(imd);
1648 }
1649
1650 static void image_destroy_cb(GtkObject *widget, gpointer data)
1651 {
1652         ImageWindow *imd = data;
1653         image_free(imd);
1654 }
1655
1656 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1657 {
1658         gtk_paint_flat_box(widget->style,
1659                            widget->window,
1660                            widget->state,
1661                            (GTK_FRAME(widget))->shadow_type,
1662                            NULL,
1663                            widget,
1664                            NULL,
1665                            widget->allocation.x + 3, widget->allocation.y + 3,
1666                            widget->allocation.width - 6, widget->allocation.height - 6);
1667
1668
1669         return FALSE;
1670 }
1671
1672
1673 void image_set_frame(ImageWindow *imd, gboolean frame)
1674 {
1675         frame = !!frame;
1676
1677         if (frame == imd->has_frame) return;
1678
1679         gtk_widget_hide(imd->pr);
1680
1681         if (frame)
1682                 {
1683                 imd->frame = gtk_frame_new(NULL);
1684 #if GTK_CHECK_VERSION(2,12,0)
1685                 g_object_ref(imd->pr);
1686 #else
1687                 gtk_widget_ref(imd->pr);
1688 #endif
1689                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1690                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1691
1692 #if GTK_CHECK_VERSION(2,12,0)
1693                 g_object_unref(imd->pr);
1694 #else
1695                 gtk_widget_unref(imd->pr);
1696 #endif
1697                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1698                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1699
1700                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1701                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1702                                  G_CALLBACK(image_focus_in_cb), imd);
1703                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1704                                  G_CALLBACK(image_focus_out_cb), imd);
1705
1706                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1707                                        G_CALLBACK(image_focus_expose), imd);
1708
1709 #if GTK_CHECK_VERSION(2,14,0)
1710                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1711 #else
1712                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1713 #endif
1714                 gtk_widget_show(imd->frame);
1715                 }
1716         else
1717                 {
1718 #if GTK_CHECK_VERSION(2,12,0)
1719                 g_object_ref(imd->pr);
1720 #else
1721                 gtk_widget_ref(imd->pr);
1722 #endif
1723                 if (imd->frame)
1724                         {
1725                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1726                         gtk_widget_destroy(imd->frame);
1727                         imd->frame = NULL;
1728                         }
1729 #if GTK_CHECK_VERSION(2,14,0)
1730                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1731 #else
1732                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1733 #endif
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                 }
1741
1742         gtk_widget_show(imd->pr);
1743
1744         imd->has_frame = frame;
1745 }
1746
1747 ImageWindow *image_new(gboolean frame)
1748 {
1749         ImageWindow *imd;
1750
1751         imd = g_new0(ImageWindow, 1);
1752
1753         imd->unknown = TRUE;
1754         imd->has_frame = -1; /* not initialized; for image_set_frame */
1755         imd->delay_alter_type = ALTER_NONE;
1756         imd->state = IMAGE_STATE_NONE;
1757         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1758         imd->orientation = 1;
1759
1760         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1761
1762         image_options_set(imd);
1763
1764         imd->widget = gtk_vbox_new(0, 0);
1765
1766         image_set_frame(imd, frame);
1767
1768         image_set_selectable(imd, 0);
1769
1770         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1771                          G_CALLBACK(image_click_cb), imd);
1772         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1773                          G_CALLBACK(image_scroll_notify_cb), imd);
1774
1775         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1776                          G_CALLBACK(image_scroll_cb), imd);
1777
1778         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1779                          G_CALLBACK(image_destroy_cb), imd);
1780
1781         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1782                          G_CALLBACK(image_zoom_cb), imd);
1783         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1784                          G_CALLBACK(image_render_complete_cb), imd);
1785         g_signal_connect(G_OBJECT(imd->pr), "drag",
1786                          G_CALLBACK(image_drag_cb), imd);
1787
1788         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1789
1790         image_list = g_list_append(image_list, imd);
1791
1792         return imd;
1793 }
1794 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */