src/image.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2009 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  *
   8  * This software is released under the GNU General Public License (GNU GPL).
   9  * Please read the included file COPYING for more information.
  10  * This software comes with no warranty of any kind, use at your own risk!
  11  */
  12
  13
  14 #include "main.h"
  15 #include "image.h"
  16
  17
  18 #include "collect.h"
  19 #include "color-man.h"
  20 #include "exif.h"
  21 #include "metadata.h"
  22 #include "histogram.h"
  23 #include "image-load.h"
  24 #include "image-overlay.h"
  25 #include "layout.h"
  26 #include "layout_image.h"
  27 #include "pixbuf-renderer.h"
  28 #include "pixbuf_util.h"
  29 #include "ui_fileops.h"
  30
  31 #include "filedata.h"
  32 #include "filecache.h"
  33
  34 #include <math.h>
  35
  36 static GList *image_list = NULL;
  37
  38 static void image_update_title(ImageWindow *imd);
  39 static void image_read_ahead_start(ImageWindow *imd);
  40 static void image_cache_set(ImageWindow *imd, FileData *fd);
  41
  42 /*
  43  *-------------------------------------------------------------------
  44  * 'signals'
  45  *-------------------------------------------------------------------
  46  */
  47
  48 static void image_click_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  49 {
  50         ImageWindow *imd = data;
  51
  52         if (imd->func_button)
  53                 {
  54                 imd->func_button(imd, event, imd->data_button);
  55                 }
  56 }
  57
  58 static void image_drag_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
  59 {
  60         ImageWindow *imd = data;
  61         gint width, height;
  62
  63         pixbuf_renderer_get_scaled_size(pr, &width, &height);
  64
  65         if (imd->func_drag)
  66                 {
  67                 imd->func_drag(imd, event,
  68                                (gfloat)(pr->drag_last_x - event->x) / width,
  69                                (gfloat)(pr->drag_last_y - event->y) / height,
  70                                imd->data_button);
  71                 }
  72 }
  73
  74 static void image_scroll_notify_cb(PixbufRenderer *pr, gpointer data)
  75 {
  76         ImageWindow *imd = data;
  77
  78         if (imd->func_scroll_notify && pr->scale)
  79                 {
  80                 imd->func_scroll_notify(imd,
  81                                         (gint)((gdouble)pr->x_scroll / pr->scale),
  82                                         (gint)((gdouble)pr->y_scroll / pr->scale),
  83                                         (gint)((gdouble)pr->image_width - pr->vis_width / pr->scale),
  84                                         (gint)((gdouble)pr->image_height - pr->vis_height / pr->scale),
  85                                         imd->data_scroll_notify);
  86                 }
  87 }
  88
  89 static void image_update_util(ImageWindow *imd)
  90 {
  91         if (imd->func_update) imd->func_update(imd, imd->data_update);
  92 }
  93
  94 static void image_zoom_cb(PixbufRenderer *pr, gdouble zoom, gpointer data)
  95 {
  96         ImageWindow *imd = data;
  97
  98         if (imd->title_show_zoom) image_update_title(imd);
  99         if (imd->overlay_show_zoom) image_osd_update(imd);
 100
 101         image_update_util(imd);
 102 }
 103
 104 static void image_complete_util(ImageWindow *imd, gboolean preload)
 105 {
 106         if (imd->il && image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il)) return;
 107
 108         DEBUG_1("%s image load completed \"%s\" (%s)", get_exec_time(),
 109                           (preload) ? (imd->read_ahead_fd ? imd->read_ahead_fd->path : "null") :
 110                                       (imd->image_fd ? imd->image_fd->path : "null"),
 111                           (preload) ? "preload" : "current");
 112
 113         if (!preload) imd->completed = TRUE;
 114         if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
 115 }
 116
 117 static void image_render_complete_cb(PixbufRenderer *pr, gpointer data)
 118 {
 119         ImageWindow *imd = data;
 120
 121         image_complete_util(imd, FALSE);
 122 }
 123
 124 static void image_state_set(ImageWindow *imd, ImageState state)
 125 {
 126         if (state == IMAGE_STATE_NONE)
 127                 {
 128                 imd->state = state;
 129                 }
 130         else
 131                 {
 132                 imd->state |= state;
 133                 }
 134         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 135 }
 136
 137 static void image_state_unset(ImageWindow *imd, ImageState state)
 138 {
 139         imd->state &= ~state;
 140         if (imd->func_state) imd->func_state(imd, state, imd->data_state);
 141 }
 142
 143 /*
 144  *-------------------------------------------------------------------
 145  * misc
 146  *-------------------------------------------------------------------
 147  */
 148
 149 static void image_update_title(ImageWindow *imd)
 150 {
 151         gchar *title = NULL;
 152         gchar *zoom = NULL;
 153         gchar *collection = NULL;
 154
 155         if (!imd->top_window) return;
 156
 157         if (imd->collection && collection_to_number(imd->collection) >= 0)
 158                 {
 159                 const gchar *name = imd->collection->name;
 160                 if (!name) name = _("Untitled");
 161                 collection = g_strdup_printf(_(" (Collection %s)"), name);
 162                 }
 163
 164         if (imd->title_show_zoom)
 165                 {
 166                 gchar *buf = image_zoom_get_as_text(imd);
 167                 zoom = g_strconcat(" [", buf, "]", NULL);
 168                 g_free(buf);
 169                 }
 170
 171         title = g_strdup_printf("%s%s%s%s%s%s",
 172                 imd->title ? imd->title : "",
 173                 imd->image_fd ? imd->image_fd->name : "",
 174                 zoom ? zoom : "",
 175                 collection ? collection : "",
 176                 imd->image_fd ? " - " : "",
 177                 imd->title_right ? imd->title_right : "");
 178
 179         gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
 180
 181         g_free(title);
 182         g_free(zoom);
 183         g_free(collection);
 184 }
 185
 186 /*
 187  *-------------------------------------------------------------------
 188  * rotation, flip, etc.
 189  *-------------------------------------------------------------------
 190  */
 191 static gboolean image_get_x11_screen_profile(ImageWindow *imd, guchar **screen_profile, gint *screen_profile_len)
 192 {
 193         GdkScreen *screen = gtk_widget_get_screen(imd->widget);;
 194         GdkAtom    type   = GDK_NONE;
 195         gint       format = 0;
 196
 197         return (gdk_property_get(gdk_screen_get_root_window(screen),
 198                                  gdk_atom_intern ("_ICC_PROFILE", FALSE),
 199                                  GDK_NONE,
 200                                  0, 64 * 1024 * 1024, FALSE,
 201                                  &type, &format, screen_profile_len, screen_profile) && *screen_profile_len > 0);
 202 }
 203
 204 static gboolean image_post_process_color(ImageWindow *imd, gint start_row, gboolean run_in_bg)
 205 {
 206         ColorMan *cm;
 207         ColorManProfileType input_type;
 208         ColorManProfileType screen_type;
 209         const gchar *input_file = NULL;
 210         const gchar *screen_file = NULL;
 211         guchar *profile = NULL;
 212         guint profile_len;
 213         guchar *screen_profile = NULL;
 214         gint screen_profile_len;
 215         ExifData *exif;
 216
 217         if (imd->cm) return FALSE;
 218
 219         if (imd->color_profile_input >= COLOR_PROFILE_FILE &&
 220             imd->color_profile_input <  COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
 221                 {
 222                 const gchar *file = options->color_profile.input_file[imd->color_profile_input - COLOR_PROFILE_FILE];
 223
 224                 if (!is_readable_file(file)) return FALSE;
 225
 226                 input_type = COLOR_PROFILE_FILE;
 227                 input_file = file;
 228                 }
 229         else if (imd->color_profile_input >= COLOR_PROFILE_SRGB &&
 230                  imd->color_profile_input <  COLOR_PROFILE_FILE)
 231                 {
 232                 input_type = imd->color_profile_input;
 233                 input_file = NULL;
 234                 }
 235         else
 236                 {
 237                 return FALSE;
 238                 }
 239
 240         if (options->color_profile.use_x11_screen_profile &&
 241             image_get_x11_screen_profile(imd, &screen_profile, &screen_profile_len))
 242                 {
 243                 screen_type = COLOR_PROFILE_MEM;
 244                 DEBUG_1("Using X11 screen profile, length: %d", screen_profile_len);
 245                 }
 246         else if (options->color_profile.screen_file &&
 247             is_readable_file(options->color_profile.screen_file))
 248                 {
 249                 screen_type = COLOR_PROFILE_FILE;
 250                 screen_file = options->color_profile.screen_file;
 251                 }
 252         else
 253                 {
 254                 screen_type = COLOR_PROFILE_SRGB;
 255                 screen_file = NULL;
 256                 }
 257
 258
 259         imd->color_profile_from_image = COLOR_PROFILE_NONE;
 260
 261         exif = exif_read_fd(imd->image_fd);
 262
 263         if (exif)
 264                 {
 265                 profile = exif_get_color_profile(exif, &profile_len);
 266                 if (profile)
 267                         {
 268                         if (!imd->color_profile_use_image)
 269                                 {
 270                                 g_free(profile);
 271                                 profile = NULL;
 272                                 }
 273                         DEBUG_1("Found embedded color profile");
 274                         imd->color_profile_from_image = COLOR_PROFILE_MEM;
 275                         }
 276                 else
 277                         {
 278                         gchar *interop_index = exif_get_data_as_text(exif, "Exif.Iop.InteroperabilityIndex");
 279
 280                         if (interop_index)
 281                                 {
 282                                 /* Exif 2.21 specification */
 283                                 if (!strcmp(interop_index, "R98"))
 284                                         {
 285                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 286                                         DEBUG_1("Found EXIF 2.21 ColorSpace of sRGB");
 287                                         }
 288                                 else if (!strcmp(interop_index, "R03"))
 289                                         {
 290                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 291                                         DEBUG_1("Found EXIF 2.21 ColorSpace of AdobeRGB");
 292                                         }
 293                                 g_free(interop_index);
 294                                 }
 295                         else
 296                                 {
 297                                 gint cs;
 298
 299                                 /* ColorSpace == 1 specifies sRGB per EXIF 2.2 */
 300                                 if (!exif_get_integer(exif, "Exif.Photo.ColorSpace", &cs)) cs = 0;
 301                                 if (cs == 1)
 302                                         {
 303                                         imd->color_profile_from_image = COLOR_PROFILE_SRGB;
 304                                         DEBUG_1("Found EXIF 2.2 ColorSpace of sRGB");
 305                                         }
 306                                 else if (cs == 2)
 307                                         {
 308                                         /* non-standard way of specifying AdobeRGB (used by some software) */
 309                                         imd->color_profile_from_image = COLOR_PROFILE_ADOBERGB;
 310                                         DEBUG_1("Found EXIF 2.2 ColorSpace of AdobeRGB");
 311                                         }
 312                                 }
 313
 314                         if (imd->color_profile_use_image && imd->color_profile_from_image != COLOR_PROFILE_NONE)
 315                                {
 316                                input_type = imd->color_profile_from_image;
 317                                input_file = NULL;
 318                                }
 319                         }
 320
 321                 exif_free_fd(imd->image_fd, exif);
 322                 }
 323
 324
 325         if (profile)
 326                 {
 327                 cm = color_man_new_embedded(run_in_bg ? imd : NULL, NULL,
 328                                             profile, profile_len,
 329                                             screen_type, screen_file, screen_profile, screen_profile_len);
 330                 g_free(profile);
 331                 }
 332         else
 333                 {
 334                 cm = color_man_new(run_in_bg ? imd : NULL, NULL,
 335                                    input_type, input_file,
 336                                    screen_type, screen_file, screen_profile, screen_profile_len);
 337                 }
 338
 339         if (cm)
 340                 {
 341                 if (start_row > 0)
 342                         {
 343                         cm->row = start_row;
 344                         cm->incremental_sync = TRUE;
 345                         }
 346
 347                 imd->cm = (gpointer)cm;
 348 #if 0
 349                 if (run_in_bg) color_man_start_bg(imd->cm, image_post_process_color_cb, imd);
 350 #endif
 351                 }
 352
 353         image_update_util(imd);
 354         return !!cm;
 355 }
 356
 357
 358 static void image_post_process_tile_color_cb(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h, gpointer data)
 359 {
 360         ImageWindow *imd = (ImageWindow *)data;
 361         if (imd->cm) color_man_correct_region(imd->cm, *pixbuf, x, y, w, h);
 362         if (imd->desaturate) pixbuf_desaturate_rect(*pixbuf, x, y, w, h);
 363
 364 }
 365
 366 void image_alter_orientation(ImageWindow *imd, AlterType type)
 367 {
 368         static const gint rotate_90[]    = {1,   6, 7, 8, 5, 2, 3, 4, 1};
 369         static const gint rotate_90_cc[] = {1,   8, 5, 6, 7, 4, 1, 2, 3};
 370         static const gint rotate_180[]   = {1,   3, 4, 1, 2, 7, 8, 5, 6};
 371         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
 372         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
 373
 374
 375         if (!imd || !imd->pr || !imd->image_fd) return;
 376
 377         if (imd->orientation < 1 || imd->orientation > 8) imd->orientation = 1;
 378
 379         switch (type)
 380                 {
 381                 case ALTER_ROTATE_90:
 382                         imd->orientation = rotate_90[imd->orientation];
 383                         break;
 384                 case ALTER_ROTATE_90_CC:
 385                         imd->orientation = rotate_90_cc[imd->orientation];
 386                         break;
 387                 case ALTER_ROTATE_180:
 388                         imd->orientation = rotate_180[imd->orientation];
 389                         break;
 390                 case ALTER_MIRROR:
 391                         imd->orientation = mirror[imd->orientation];
 392                         break;
 393                 case ALTER_FLIP:
 394                         imd->orientation = flip[imd->orientation];
 395                         break;
 396                 case ALTER_NONE:
 397                         imd->orientation = imd->image_fd->exif_orientation ? imd->image_fd->exif_orientation : 1;
 398                         break;
 399                 default:
 400                         return;
 401                         break;
 402                 }
 403
 404         if (type != ALTER_NONE)
 405                 {
 406                 if (imd->image_fd->user_orientation == 0) file_data_ref(imd->image_fd);
 407                 imd->image_fd->user_orientation = imd->orientation;
 408                 }
 409         else
 410                 {
 411                 if (imd->image_fd->user_orientation != 0) file_data_unref(imd->image_fd);
 412                 imd->image_fd->user_orientation = 0;
 413                 }
 414
 415         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 416 }
 417
 418 void image_set_desaturate(ImageWindow *imd, gboolean desaturate)
 419 {
 420         imd->desaturate = desaturate;
 421         if (imd->cm || imd->desaturate)
 422                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
 423         else
 424                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
 425         pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
 426 }
 427
 428 gboolean image_get_desaturate(ImageWindow *imd)
 429 {
 430         return imd->desaturate;
 431 }
 432
 433 /*
 434  *-------------------------------------------------------------------
 435  * read ahead (prebuffer)
 436  *-------------------------------------------------------------------
 437  */
 438
 439 static void image_read_ahead_cancel(ImageWindow *imd)
 440 {
 441         DEBUG_1("%s read ahead cancelled for :%s", get_exec_time(), imd->read_ahead_fd ? imd->read_ahead_fd->path : "null");
 442
 443         image_loader_free(imd->read_ahead_il);
 444         imd->read_ahead_il = NULL;
 445
 446         file_data_unref(imd->read_ahead_fd);
 447         imd->read_ahead_fd = NULL;
 448 }
 449
 450 static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
 451 {
 452         ImageWindow *imd = data;
 453
 454         DEBUG_1("%s read ahead done for :%s", get_exec_time(), imd->read_ahead_fd->path);
 455
 456         if (!imd->read_ahead_fd->pixbuf)
 457                 {
 458                 imd->read_ahead_fd->pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
 459                 if (imd->read_ahead_fd->pixbuf)
 460                         {
 461                         g_object_ref(imd->read_ahead_fd->pixbuf);
 462                         image_cache_set(imd, imd->read_ahead_fd);
 463                         }
 464                 }
 465         image_loader_free(imd->read_ahead_il);
 466         imd->read_ahead_il = NULL;
 467
 468         image_complete_util(imd, TRUE);
 469 }
 470
 471 static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
 472 {
 473         /* we even treat errors as success, maybe at least some of the file was ok */
 474         image_read_ahead_done_cb(il, data);
 475 }
 476
 477 static void image_read_ahead_start(ImageWindow *imd)
 478 {
 479         /* already started ? */
 480         if (!imd->read_ahead_fd || imd->read_ahead_il || imd->read_ahead_fd->pixbuf) return;
 481
 482         /* still loading ?, do later */
 483         if (imd->il /*|| imd->cm*/) return;
 484
 485         DEBUG_1("%s read ahead started for :%s", get_exec_time(), imd->read_ahead_fd->path);
 486
 487         imd->read_ahead_il = image_loader_new(imd->read_ahead_fd);
 488
 489         image_loader_delay_area_ready(imd->read_ahead_il, TRUE); /* we will need the area_ready signals later */
 490
 491         g_signal_connect(G_OBJECT(imd->read_ahead_il), "error", (GCallback)image_read_ahead_error_cb, imd);
 492         g_signal_connect(G_OBJECT(imd->read_ahead_il), "done", (GCallback)image_read_ahead_done_cb, imd);
 493
 494         if (!image_loader_start(imd->read_ahead_il))
 495                 {
 496                 image_read_ahead_cancel(imd);
 497                 image_complete_util(imd, TRUE);
 498                 }
 499 }
 500
 501 static void image_read_ahead_set(ImageWindow *imd, FileData *fd)
 502 {
 503         if (imd->read_ahead_fd && fd && imd->read_ahead_fd == fd) return;
 504
 505         image_read_ahead_cancel(imd);
 506
 507         imd->read_ahead_fd = file_data_ref(fd);
 508
 509         DEBUG_1("read ahead set to :%s", imd->read_ahead_fd->path);
 510
 511         image_read_ahead_start(imd);
 512 }
 513
 514 /*
 515  *-------------------------------------------------------------------
 516  * post buffering
 517  *-------------------------------------------------------------------
 518  */
 519
 520 static void image_cache_release_cb(FileData *fd)
 521 {
 522         g_object_unref(fd->pixbuf);
 523         fd->pixbuf = NULL;
 524 }
 525
 526 static FileCacheData *image_get_cache(void)
 527 {
 528         static FileCacheData *cache = NULL;
 529         if (!cache) cache = file_cache_new(image_cache_release_cb, 1);
 530         file_cache_set_max_size(cache, (gulong)options->image.image_cache_max * 1048576); /* update from options */
 531         return cache;
 532 }
 533
 534 static void image_cache_set(ImageWindow *imd, FileData *fd)
 535 {
 536         g_assert(fd->pixbuf);
 537
 538         file_cache_put(image_get_cache(), fd, (gulong)gdk_pixbuf_get_rowstride(fd->pixbuf) * (gulong)gdk_pixbuf_get_height(fd->pixbuf));
 539         file_data_send_notification(fd, NOTIFY_PIXBUF); /* to update histogram */
 540 }
 541
 542 static gint image_cache_get(ImageWindow *imd)
 543 {
 544         gint success;
 545
 546         success = file_cache_get(image_get_cache(), imd->image_fd);
 547         if (success)
 548                 {
 549                 g_assert(imd->image_fd->pixbuf);
 550                 image_change_pixbuf(imd, imd->image_fd->pixbuf, image_zoom_get(imd), FALSE);
 551                 }
 552
 553 //      file_cache_dump(image_get_cache());
 554         return success;
 555 }
 556
 557 /*
 558  *-------------------------------------------------------------------
 559  * loading
 560  *-------------------------------------------------------------------
 561  */
 562
 563 static void image_load_pixbuf_ready(ImageWindow *imd)
 564 {
 565         if (image_get_pixbuf(imd) || !imd->il) return;
 566
 567         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 568 }
 569
 570 static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
 571 {
 572         ImageWindow *imd = data;
 573         PixbufRenderer *pr;
 574
 575         pr = (PixbufRenderer *)imd->pr;
 576
 577         if (imd->delay_flip &&
 578             pr->pixbuf != image_loader_get_pixbuf(il))
 579                 {
 580                 return;
 581                 }
 582
 583         if (!pr->pixbuf) image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 584
 585         pixbuf_renderer_area_changed(pr, x, y, w, h);
 586 }
 587
 588 static void image_load_done_cb(ImageLoader *il, gpointer data)
 589 {
 590         ImageWindow *imd = data;
 591
 592         DEBUG_1("%s image done", get_exec_time());
 593
 594         if (options->image.enable_read_ahead && imd->image_fd && !imd->image_fd->pixbuf && image_loader_get_pixbuf(imd->il))
 595                 {
 596                 imd->image_fd->pixbuf = g_object_ref(image_loader_get_pixbuf(imd->il));
 597                 image_cache_set(imd, imd->image_fd);
 598                 }
 599         /* call the callback triggered by image_state after fd->pixbuf is set */
 600         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 601         image_state_unset(imd, IMAGE_STATE_LOADING);
 602
 603         if (!image_loader_get_pixbuf(imd->il))
 604                 {
 605                 GdkPixbuf *pixbuf;
 606
 607                 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 608                 image_change_pixbuf(imd, pixbuf, image_zoom_get(imd), FALSE);
 609                 g_object_unref(pixbuf);
 610
 611                 imd->unknown = TRUE;
 612                 }
 613         else if (imd->delay_flip &&
 614             image_get_pixbuf(imd) != image_loader_get_pixbuf(imd->il))
 615                 {
 616                 g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 617                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), FALSE);
 618                 }
 619
 620         image_loader_free(imd->il);
 621         imd->il = NULL;
 622
 623 //      image_post_process(imd, TRUE);
 624
 625         image_read_ahead_start(imd);
 626 }
 627
 628 static void image_load_error_cb(ImageLoader *il, gpointer data)
 629 {
 630         DEBUG_1("%s image error", get_exec_time());
 631
 632         /* even on error handle it like it was done,
 633          * since we have a pixbuf with _something_ */
 634
 635         image_load_done_cb(il, data);
 636 }
 637
 638 static void image_load_set_signals(ImageWindow *imd, gboolean override_old_signals)
 639 {
 640         g_assert(imd->il);
 641         if (override_old_signals)
 642                 {
 643                 /* override the old signals */
 644                 g_signal_handlers_disconnect_matched(G_OBJECT(imd->il), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, imd);
 645                 }
 646
 647         g_signal_connect(G_OBJECT(imd->il), "area_ready", (GCallback)image_load_area_cb, imd);
 648         g_signal_connect(G_OBJECT(imd->il), "error", (GCallback)image_load_error_cb, imd);
 649         g_signal_connect(G_OBJECT(imd->il), "done", (GCallback)image_load_done_cb, imd);
 650 }
 651
 652 /* this read ahead is located here merely for the callbacks, above */
 653
 654 static gboolean image_read_ahead_check(ImageWindow *imd)
 655 {
 656         if (!imd->read_ahead_fd) return FALSE;
 657         if (imd->il) return FALSE;
 658
 659         if (!imd->image_fd || imd->read_ahead_fd != imd->image_fd)
 660                 {
 661                 image_read_ahead_cancel(imd);
 662                 return FALSE;
 663                 }
 664
 665         if (imd->read_ahead_il)
 666                 {
 667                 imd->il = imd->read_ahead_il;
 668                 imd->read_ahead_il = NULL;
 669
 670                 image_load_set_signals(imd, TRUE);
 671
 672                 g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 673                 image_state_set(imd, IMAGE_STATE_LOADING);
 674
 675                 if (!imd->delay_flip)
 676                         {
 677                         image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 678                         }
 679
 680                 image_loader_delay_area_ready(imd->il, FALSE); /* send the delayed area_ready signals */
 681
 682                 file_data_unref(imd->read_ahead_fd);
 683                 imd->read_ahead_fd = NULL;
 684                 return TRUE;
 685                 }
 686         else if (imd->read_ahead_fd->pixbuf)
 687                 {
 688                 image_change_pixbuf(imd, imd->read_ahead_fd->pixbuf, image_zoom_get(imd), FALSE);
 689
 690                 file_data_unref(imd->read_ahead_fd);
 691                 imd->read_ahead_fd = NULL;
 692
 693 //              image_post_process(imd, FALSE);
 694                 return TRUE;
 695                 }
 696
 697         image_read_ahead_cancel(imd);
 698         return FALSE;
 699 }
 700
 701 static gboolean image_load_begin(ImageWindow *imd, FileData *fd)
 702 {
 703         DEBUG_1("%s image begin", get_exec_time());
 704
 705         if (imd->il) return FALSE;
 706
 707         imd->completed = FALSE;
 708         g_object_set(G_OBJECT(imd->pr), "complete", FALSE, NULL);
 709
 710         if (image_cache_get(imd))
 711                 {
 712                 DEBUG_1("from cache: %s", imd->image_fd->path);
 713                 return TRUE;
 714                 }
 715
 716         if (image_read_ahead_check(imd))
 717                 {
 718                 DEBUG_1("from read ahead buffer: %s", imd->image_fd->path);
 719                 return TRUE;
 720                 }
 721
 722         if (!imd->delay_flip && image_get_pixbuf(imd))
 723                 {
 724                 PixbufRenderer *pr;
 725
 726                 pr = PIXBUF_RENDERER(imd->pr);
 727                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
 728                 pr->pixbuf = NULL;
 729                 }
 730
 731         g_object_set(G_OBJECT(imd->pr), "loading", TRUE, NULL);
 732
 733         imd->il = image_loader_new(fd);
 734
 735         image_load_set_signals(imd, FALSE);
 736
 737         if (!image_loader_start(imd->il))
 738                 {
 739                 DEBUG_1("image start error");
 740
 741                 g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 742
 743                 image_loader_free(imd->il);
 744                 imd->il = NULL;
 745
 746                 image_complete_util(imd, FALSE);
 747
 748                 return FALSE;
 749                 }
 750
 751         image_state_set(imd, IMAGE_STATE_LOADING);
 752
 753 /*
 754         if (!imd->delay_flip && !image_get_pixbuf(imd) && image_loader_get_pixbuf(imd->il))
 755                 {
 756                 image_change_pixbuf(imd, image_loader_get_pixbuf(imd->il), image_zoom_get(imd), TRUE);
 757                 }
 758 */
 759         return TRUE;
 760 }
 761
 762 static void image_reset(ImageWindow *imd)
 763 {
 764         /* stops anything currently being done */
 765
 766         DEBUG_1("%s image reset", get_exec_time());
 767
 768         g_object_set(G_OBJECT(imd->pr), "loading", FALSE, NULL);
 769
 770         image_loader_free(imd->il);
 771         imd->il = NULL;
 772
 773         color_man_free((ColorMan *)imd->cm);
 774         imd->cm = NULL;
 775
 776         imd->delay_alter_type = ALTER_NONE;
 777
 778         image_state_set(imd, IMAGE_STATE_NONE);
 779 }
 780
 781 /*
 782  *-------------------------------------------------------------------
 783  * image changer
 784  *-------------------------------------------------------------------
 785  */
 786
 787 static void image_change_complete(ImageWindow *imd, gdouble zoom)
 788 {
 789         image_reset(imd);
 790         imd->unknown = TRUE;
 791
 792         if (!imd->image_fd)
 793                 {
 794                 image_change_pixbuf(imd, NULL, zoom, FALSE);
 795                 }
 796         else
 797                 {
 798
 799                 if (is_readable_file(imd->image_fd->path))
 800                         {
 801                         PixbufRenderer *pr;
 802
 803                         pr = PIXBUF_RENDERER(imd->pr);
 804                         pr->zoom = zoom;        /* store the zoom, needed by the loader */
 805
 806                         if (image_load_begin(imd, imd->image_fd))
 807                                 {
 808                                 imd->unknown = FALSE;
 809                                 }
 810                         }
 811
 812                 if (imd->unknown == TRUE)
 813                         {
 814                         GdkPixbuf *pixbuf;
 815
 816                         pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
 817                         image_change_pixbuf(imd, pixbuf, zoom, FALSE);
 818                         g_object_unref(pixbuf);
 819                         }
 820                 }
 821
 822         image_update_util(imd);
 823 }
 824
 825 static void image_change_real(ImageWindow *imd, FileData *fd,
 826                               CollectionData *cd, CollectInfo *info, gdouble zoom)
 827 {
 828
 829         imd->collection = cd;
 830         imd->collection_info = info;
 831
 832         if (imd->auto_refresh && imd->image_fd)
 833                 file_data_unregister_real_time_monitor(imd->image_fd);
 834
 835         file_data_unref(imd->image_fd);
 836         imd->image_fd = file_data_ref(fd);
 837
 838
 839         image_change_complete(imd, zoom);
 840
 841         image_update_title(imd);
 842         image_state_set(imd, IMAGE_STATE_IMAGE);
 843
 844         if (imd->auto_refresh && imd->image_fd)
 845                 file_data_register_real_time_monitor(imd->image_fd);
 846 }
 847
 848 /*
 849  *-------------------------------------------------------------------
 850  * focus stuff
 851  *-------------------------------------------------------------------
 852  */
 853
 854 static void image_focus_paint(ImageWindow *imd, gboolean has_focus, GdkRectangle *area)
 855 {
 856         GtkWidget *widget;
 857
 858         widget = imd->widget;
 859         if (!widget->window) return;
 860
 861         if (has_focus)
 862                 {
 863                 gtk_paint_focus(widget->style, widget->window, GTK_STATE_ACTIVE,
 864                                 area, widget, "image_window",
 865                                 widget->allocation.x, widget->allocation.y,
 866                                 widget->allocation.width - 1, widget->allocation.height - 1);
 867                 }
 868         else
 869                 {
 870                 gtk_paint_shadow(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
 871                                  area, widget, "image_window",
 872                                  widget->allocation.x, widget->allocation.y,
 873                                  widget->allocation.width - 1, widget->allocation.height - 1);
 874                 }
 875 }
 876
 877 static gboolean image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 878 {
 879         ImageWindow *imd = data;
 880
 881         image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
 882         return TRUE;
 883 }
 884
 885 static gboolean image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 886 {
 887         ImageWindow *imd = data;
 888
 889         GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 890         image_focus_paint(imd, TRUE, NULL);
 891
 892         if (imd->func_focus_in)
 893                 {
 894                 imd->func_focus_in(imd, imd->data_focus_in);
 895                 }
 896
 897         return TRUE;
 898 }
 899
 900 static gboolean image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 901 {
 902         ImageWindow *imd = data;
 903
 904         GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
 905         image_focus_paint(imd, FALSE, NULL);
 906
 907         return TRUE;
 908 }
 909
 910 static gboolean image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 911 {
 912         ImageWindow *imd = data;
 913
 914         if (imd->func_scroll &&
 915             event && event->type == GDK_SCROLL)
 916                 {
 917                 imd->func_scroll(imd, event, imd->data_scroll);
 918                 return TRUE;
 919                 }
 920
 921         return FALSE;
 922 }
 923
 924 /*
 925  *-------------------------------------------------------------------
 926  * public interface
 927  *-------------------------------------------------------------------
 928  */
 929
 930 void image_attach_window(ImageWindow *imd, GtkWidget *window,
 931                          const gchar *title, const gchar *title_right, gboolean show_zoom)
 932 {
 933         imd->top_window = window;
 934         g_free(imd->title);
 935         imd->title = g_strdup(title);
 936         g_free(imd->title_right);
 937         imd->title_right = g_strdup(title_right);
 938         imd->title_show_zoom = show_zoom;
 939
 940         if (!options->image.fit_window_to_image) window = NULL;
 941
 942         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)window);
 943
 944         image_update_title(imd);
 945 }
 946
 947 void image_set_update_func(ImageWindow *imd,
 948                            void (*func)(ImageWindow *imd, gpointer data),
 949                            gpointer data)
 950 {
 951         imd->func_update = func;
 952         imd->data_update = data;
 953 }
 954
 955 void image_set_complete_func(ImageWindow *imd,
 956                              void (*func)(ImageWindow *imd, gboolean preload, gpointer data),
 957                              gpointer data)
 958 {
 959         imd->func_complete = func;
 960         imd->data_complete = data;
 961 }
 962
 963 void image_set_state_func(ImageWindow *imd,
 964                         void (*func)(ImageWindow *imd, ImageState state, gpointer data),
 965                         gpointer data)
 966 {
 967         imd->func_state = func;
 968         imd->data_state = data;
 969 }
 970
 971
 972 void image_set_button_func(ImageWindow *imd,
 973                            void (*func)(ImageWindow *, GdkEventButton *event, gpointer),
 974                            gpointer data)
 975 {
 976         imd->func_button = func;
 977         imd->data_button = data;
 978 }
 979
 980 void image_set_drag_func(ImageWindow *imd,
 981                            void (*func)(ImageWindow *, GdkEventButton *event, gdouble dx, gdouble dy, gpointer),
 982                            gpointer data)
 983 {
 984         imd->func_drag = func;
 985         imd->data_drag = data;
 986 }
 987
 988 void image_set_scroll_func(ImageWindow *imd,
 989                            void (*func)(ImageWindow *, GdkEventScroll *event, gpointer),
 990                            gpointer data)
 991 {
 992         imd->func_scroll = func;
 993         imd->data_scroll = data;
 994 }
 995
 996 void image_set_scroll_notify_func(ImageWindow *imd,
 997                                   void (*func)(ImageWindow *imd, gint x, gint y, gint width, gint height, gpointer data),
 998                                   gpointer data)
 999 {
1000         imd->func_scroll_notify = func;
1001         imd->data_scroll_notify = data;
1002 }
1003
1004 void image_set_focus_in_func(ImageWindow *imd,
1005                            void (*func)(ImageWindow *, gpointer),
1006                            gpointer data)
1007 {
1008         imd->func_focus_in = func;
1009         imd->data_focus_in = data;
1010 }
1011
1012 /* path, name */
1013
1014 const gchar *image_get_path(ImageWindow *imd)
1015 {
1016         if (imd->image_fd == NULL) return NULL;
1017         return imd->image_fd->path;
1018 }
1019
1020 const gchar *image_get_name(ImageWindow *imd)
1021 {
1022         if (imd->image_fd == NULL) return NULL;
1023         return imd->image_fd->name;
1024 }
1025
1026 FileData *image_get_fd(ImageWindow *imd)
1027 {
1028         return imd->image_fd;
1029 }
1030
1031 /* merely changes path string, does not change the image! */
1032 void image_set_fd(ImageWindow *imd, FileData *fd)
1033 {
1034         if (imd->auto_refresh && imd->image_fd)
1035                 file_data_unregister_real_time_monitor(imd->image_fd);
1036
1037         file_data_unref(imd->image_fd);
1038         imd->image_fd = file_data_ref(fd);
1039
1040         image_update_title(imd);
1041         image_state_set(imd, IMAGE_STATE_IMAGE);
1042
1043         if (imd->auto_refresh && imd->image_fd)
1044                 file_data_register_real_time_monitor(imd->image_fd);
1045 }
1046
1047 /* load a new image */
1048
1049 void image_change_fd(ImageWindow *imd, FileData *fd, gdouble zoom)
1050 {
1051         if (imd->image_fd == fd) return;
1052
1053         image_change_real(imd, fd, NULL, NULL, zoom);
1054 }
1055
1056 gboolean image_get_image_size(ImageWindow *imd, gint *width, gint *height)
1057 {
1058         return pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), width, height);
1059 }
1060
1061 GdkPixbuf *image_get_pixbuf(ImageWindow *imd)
1062 {
1063         return pixbuf_renderer_get_pixbuf((PixbufRenderer *)imd->pr);
1064 }
1065
1066 void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gboolean lazy)
1067 {
1068
1069
1070         /* read_exif and similar functions can actually notice that the file has changed and triger a notification
1071         that removes the pixbuf from cache and unref it. Therefore we must ref it here before it is taken over by the renderer. */
1072         if (pixbuf) g_object_ref(pixbuf);
1073
1074         if (imd->image_fd)
1075                 {
1076                 if (imd->image_fd->user_orientation)
1077                         {
1078                         imd->orientation = imd->image_fd->user_orientation;
1079                         }
1080                 else if (options->image.exif_rotate_enable)
1081                         {
1082                         imd->orientation = metadata_read_int(imd->image_fd, "Exif.Image.Orientation", EXIF_ORIENTATION_TOP_LEFT);
1083                         imd->image_fd->exif_orientation = imd->orientation;
1084                         }
1085                 }
1086
1087         pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, FALSE);
1088         if (imd->cm)
1089                 {
1090                 color_man_free(imd->cm);
1091                 imd->cm = NULL;
1092                 }
1093
1094         if (lazy)
1095                 {
1096                 pixbuf_renderer_set_pixbuf_lazy((PixbufRenderer *)imd->pr, pixbuf, zoom, imd->orientation);
1097                 }
1098         else
1099                 {
1100                 pixbuf_renderer_set_pixbuf((PixbufRenderer *)imd->pr, pixbuf, zoom);
1101                 pixbuf_renderer_set_orientation((PixbufRenderer *)imd->pr, imd->orientation);
1102                 }
1103
1104         if (pixbuf) g_object_unref(pixbuf);
1105
1106         if (imd->color_profile_enable)
1107                 {
1108                 image_post_process_color(imd, 0, FALSE); /* TODO: error handling */
1109                 }
1110
1111         if (imd->cm || imd->desaturate)
1112                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1113
1114         image_state_set(imd, IMAGE_STATE_IMAGE);
1115 }
1116
1117 void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
1118 {
1119         if (!cd || !info || !g_list_find(cd->list, info)) return;
1120
1121         image_change_real(imd, info->fd, cd, info, zoom);
1122 }
1123
1124 CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
1125 {
1126         if (collection_to_number(imd->collection) >= 0)
1127                 {
1128                 if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
1129                         {
1130                         if (info) *info = imd->collection_info;
1131                         }
1132                 else
1133                         {
1134                         if (info) *info = NULL;
1135                         }
1136                 return imd->collection;
1137                 }
1138
1139         if (info) *info = NULL;
1140         return NULL;
1141 }
1142
1143 static void image_loader_sync_read_ahead_data(ImageLoader *il, gpointer old_data, gpointer data)
1144 {
1145         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_error_cb, old_data))
1146                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_read_ahead_error_cb, data);
1147
1148         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_read_ahead_done_cb, old_data))
1149                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_read_ahead_done_cb, data);
1150 }
1151
1152 static void image_loader_sync_data(ImageLoader *il, gpointer old_data, gpointer data)
1153 {
1154         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_area_cb, old_data))
1155                 g_signal_connect(G_OBJECT(il), "area_ready", (GCallback)image_load_area_cb, data);
1156
1157         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_error_cb, old_data))
1158                 g_signal_connect(G_OBJECT(il), "error", (GCallback)image_load_error_cb, data);
1159
1160         if (g_signal_handlers_disconnect_by_func(G_OBJECT(il), (GCallback)image_load_done_cb, old_data))
1161                 g_signal_connect(G_OBJECT(il), "done", (GCallback)image_load_done_cb, data);
1162 }
1163
1164 /* this is more like a move function
1165  * it moves most data from source to imd
1166  */
1167 void image_change_from_image(ImageWindow *imd, ImageWindow *source)
1168 {
1169         if (imd == source) return;
1170
1171         imd->unknown = source->unknown;
1172
1173         imd->collection = source->collection;
1174         imd->collection_info = source->collection_info;
1175
1176         image_loader_free(imd->il);
1177         imd->il = NULL;
1178
1179         image_set_fd(imd, image_get_fd(source));
1180
1181
1182         if (source->il)
1183                 {
1184                 imd->il = source->il;
1185                 source->il = NULL;
1186
1187                 image_loader_sync_data(imd->il, source, imd);
1188
1189                 imd->delay_alter_type = source->delay_alter_type;
1190                 source->delay_alter_type = ALTER_NONE;
1191                 }
1192
1193         imd->color_profile_enable = source->color_profile_enable;
1194         imd->color_profile_input = source->color_profile_input;
1195         imd->color_profile_use_image = source->color_profile_use_image;
1196         color_man_free((ColorMan *)imd->cm);
1197         imd->cm = NULL;
1198         if (source->cm)
1199                 {
1200                 ColorMan *cm;
1201
1202                 imd->cm = source->cm;
1203                 source->cm = NULL;
1204
1205                 cm = (ColorMan *)imd->cm;
1206                 cm->imd = imd;
1207                 cm->func_done_data = imd;
1208                 }
1209
1210         image_loader_free(imd->read_ahead_il);
1211         imd->read_ahead_il = source->read_ahead_il;
1212         source->read_ahead_il = NULL;
1213         if (imd->read_ahead_il) image_loader_sync_read_ahead_data(imd->read_ahead_il, source, imd);
1214
1215         file_data_unref(imd->read_ahead_fd);
1216         imd->read_ahead_fd = source->read_ahead_fd;
1217         source->read_ahead_fd = NULL;
1218
1219         imd->completed = source->completed;
1220         imd->state = source->state;
1221         source->state = IMAGE_STATE_NONE;
1222
1223         imd->orientation = source->orientation;
1224         imd->desaturate = source->desaturate;
1225
1226         pixbuf_renderer_move(PIXBUF_RENDERER(imd->pr), PIXBUF_RENDERER(source->pr));
1227
1228         if (imd->cm || imd->desaturate)
1229                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, image_post_process_tile_color_cb, (gpointer) imd, (imd->cm != NULL) );
1230         else
1231                 pixbuf_renderer_set_post_process_func((PixbufRenderer *)imd->pr, NULL, NULL, TRUE);
1232
1233 }
1234
1235 /* manipulation */
1236
1237 void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
1238 {
1239         pixbuf_renderer_area_changed((PixbufRenderer *)imd->pr, x, y, width, height);
1240 }
1241
1242 void image_reload(ImageWindow *imd)
1243 {
1244         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1245
1246         image_change_complete(imd, image_zoom_get(imd));
1247 }
1248
1249 void image_scroll(ImageWindow *imd, gint x, gint y)
1250 {
1251         pixbuf_renderer_scroll((PixbufRenderer *)imd->pr, x, y);
1252 }
1253
1254 void image_scroll_to_point(ImageWindow *imd, gint x, gint y,
1255                            gdouble x_align, gdouble y_align)
1256 {
1257         pixbuf_renderer_scroll_to_point((PixbufRenderer *)imd->pr, x, y, x_align, y_align);
1258 }
1259
1260 void image_get_scroll_center(ImageWindow *imd, gdouble *x, gdouble *y)
1261 {
1262         pixbuf_renderer_get_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1263 }
1264
1265 void image_set_scroll_center(ImageWindow *imd, gdouble x, gdouble y)
1266 {
1267         pixbuf_renderer_set_scroll_center(PIXBUF_RENDERER(imd->pr), x, y);
1268 }
1269
1270 void image_zoom_adjust(ImageWindow *imd, gdouble increment)
1271 {
1272         pixbuf_renderer_zoom_adjust((PixbufRenderer *)imd->pr, increment);
1273 }
1274
1275 void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
1276 {
1277         pixbuf_renderer_zoom_adjust_at_point((PixbufRenderer *)imd->pr, increment, x, y);
1278 }
1279
1280 void image_zoom_set_limits(ImageWindow *imd, gdouble min, gdouble max)
1281 {
1282         pixbuf_renderer_zoom_set_limits((PixbufRenderer *)imd->pr, min, max);
1283 }
1284
1285 void image_zoom_set(ImageWindow *imd, gdouble zoom)
1286 {
1287         pixbuf_renderer_zoom_set((PixbufRenderer *)imd->pr, zoom);
1288 }
1289
1290 void image_zoom_set_fill_geometry(ImageWindow *imd, gboolean vertical)
1291 {
1292         PixbufRenderer *pr;
1293         gdouble zoom;
1294         gint width, height;
1295
1296         pr = (PixbufRenderer *)imd->pr;
1297
1298         if (!pixbuf_renderer_get_pixbuf(pr) ||
1299             !pixbuf_renderer_get_image_size(pr, &width, &height)) return;
1300
1301         if (vertical)
1302                 {
1303                 zoom = (gdouble)pr->window_height / height;
1304                 }
1305         else
1306                 {
1307                 zoom = (gdouble)pr->window_width / width;
1308                 }
1309
1310         if (zoom < 1.0)
1311                 {
1312                 zoom = 0.0 - 1.0 / zoom;
1313                 }
1314
1315         pixbuf_renderer_zoom_set(pr, zoom);
1316 }
1317
1318 gdouble image_zoom_get(ImageWindow *imd)
1319 {
1320         return pixbuf_renderer_zoom_get((PixbufRenderer *)imd->pr);
1321 }
1322
1323 gdouble image_zoom_get_real(ImageWindow *imd)
1324 {
1325         return pixbuf_renderer_zoom_get_scale((PixbufRenderer *)imd->pr);
1326 }
1327
1328 gchar *image_zoom_get_as_text(ImageWindow *imd)
1329 {
1330         gdouble zoom;
1331         gdouble scale;
1332         gdouble l = 1.0;
1333         gdouble r = 1.0;
1334         gint pl = 0;
1335         gint pr = 0;
1336         gchar *approx = " ";
1337
1338         zoom = image_zoom_get(imd);
1339         scale = image_zoom_get_real(imd);
1340
1341         if (zoom > 0.0)
1342                 {
1343                 l = zoom;
1344                 }
1345         else if (zoom < 0.0)
1346                 {
1347                 r = 0.0 - zoom;
1348                 }
1349         else if (zoom == 0.0 && scale != 0.0)
1350                 {
1351                 if (scale >= 1.0)
1352                         {
1353                         l = scale;
1354                         }
1355                 else
1356                         {
1357                         r = 1.0 / scale;
1358                         }
1359                 approx = "~";
1360                 }
1361
1362         if (rint(l) != l) pl = 1;
1363         if (rint(r) != r) pr = 1;
1364
1365         return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
1366 }
1367
1368 gdouble image_zoom_get_default(ImageWindow *imd)
1369 {
1370         gdouble zoom = 1.0;
1371
1372         switch (options->image.zoom_mode)
1373         {
1374         case ZOOM_RESET_ORIGINAL:
1375                 break;
1376         case ZOOM_RESET_FIT_WINDOW:
1377                 zoom = 0.0;
1378                 break;
1379         case ZOOM_RESET_NONE:
1380                 if (imd) zoom = image_zoom_get(imd);
1381                 break;
1382         }
1383
1384         return zoom;
1385 }
1386
1387 /* read ahead */
1388
1389 void image_prebuffer_set(ImageWindow *imd, FileData *fd)
1390 {
1391         if (pixbuf_renderer_get_tiles((PixbufRenderer *)imd->pr)) return;
1392
1393         if (fd)
1394                 {
1395                 if (!file_cache_get(image_get_cache(), fd))
1396                         {
1397                         image_read_ahead_set(imd, fd);
1398                         }
1399                 }
1400         else
1401                 {
1402                 image_read_ahead_cancel(imd);
1403                 }
1404 }
1405
1406 static void image_notify_cb(FileData *fd, NotifyType type, gpointer data)
1407 {
1408         ImageWindow *imd = data;
1409
1410         if (!imd || !image_get_pixbuf(imd) ||
1411             /* imd->il || */ /* loading in progress - do not check - it should start from the beginning anyway */
1412             !imd->image_fd || /* nothing to reload */
1413             imd->state == IMAGE_STATE_NONE /* loading not started, no need to reload */
1414             ) return;
1415
1416         if ((type & (NOTIFY_REREAD | NOTIFY_CHANGE)) && fd == imd->image_fd)
1417                 {
1418                 DEBUG_1("Notify image: %s %04x", fd->path, type);
1419                 image_reload(imd);
1420                 }
1421 }
1422
1423 void image_auto_refresh_enable(ImageWindow *imd, gboolean enable)
1424 {
1425         if (!enable && imd->auto_refresh && imd->image_fd)
1426                 file_data_unregister_real_time_monitor(imd->image_fd);
1427
1428         if (enable && !imd->auto_refresh && imd->image_fd)
1429                 file_data_register_real_time_monitor(imd->image_fd);
1430
1431         imd->auto_refresh = enable;
1432 }
1433
1434 void image_top_window_set_sync(ImageWindow *imd, gboolean allow_sync)
1435 {
1436         imd->top_window_sync = allow_sync;
1437
1438         g_object_set(G_OBJECT(imd->pr), "window_fit", allow_sync, NULL);
1439 }
1440
1441 void image_background_set_color(ImageWindow *imd, GdkColor *color)
1442 {
1443         pixbuf_renderer_set_color((PixbufRenderer *)imd->pr, color);
1444 }
1445
1446 void image_color_profile_set(ImageWindow *imd,
1447                              gint input_type,
1448                              gboolean use_image)
1449 {
1450         if (!imd) return;
1451
1452         if (input_type < 0 || input_type >= COLOR_PROFILE_FILE + COLOR_PROFILE_INPUTS)
1453                 {
1454                 return;
1455                 }
1456
1457         imd->color_profile_input = input_type;
1458         imd->color_profile_use_image = use_image;
1459 }
1460
1461 gboolean image_color_profile_get(ImageWindow *imd,
1462                                  gint *input_type,
1463                                  gboolean *use_image)
1464 {
1465         if (!imd) return FALSE;
1466
1467         if (input_type) *input_type = imd->color_profile_input;
1468         if (use_image) *use_image = imd->color_profile_use_image;
1469
1470         return TRUE;
1471 }
1472
1473 void image_color_profile_set_use(ImageWindow *imd, gboolean enable)
1474 {
1475         if (!imd) return;
1476
1477         if (imd->color_profile_enable == enable) return;
1478
1479         imd->color_profile_enable = enable;
1480 }
1481
1482 gboolean image_color_profile_get_use(ImageWindow *imd)
1483 {
1484         if (!imd) return FALSE;
1485
1486         return imd->color_profile_enable;
1487 }
1488
1489 gboolean image_color_profile_get_status(ImageWindow *imd, gchar **image_profile, gchar **screen_profile)
1490 {
1491         ColorMan *cm;
1492         if (!imd) return FALSE;
1493
1494         cm = imd->cm;
1495         if (!cm) return FALSE;
1496         return color_man_get_status(cm, image_profile, screen_profile);
1497
1498 }
1499
1500 void image_set_delay_flip(ImageWindow *imd, gboolean delay)
1501 {
1502         if (!imd ||
1503             imd->delay_flip == delay) return;
1504
1505         imd->delay_flip = delay;
1506
1507         g_object_set(G_OBJECT(imd->pr), "delay_flip", delay, NULL);
1508
1509         if (!imd->delay_flip && imd->il)
1510                 {
1511                 PixbufRenderer *pr;
1512
1513                 pr = PIXBUF_RENDERER(imd->pr);
1514                 if (pr->pixbuf) g_object_unref(pr->pixbuf);
1515                 pr->pixbuf = NULL;
1516
1517                 image_load_pixbuf_ready(imd);
1518                 }
1519 }
1520
1521 void image_to_root_window(ImageWindow *imd, gboolean scaled)
1522 {
1523         GdkScreen *screen;
1524         GdkWindow *rootwindow;
1525         GdkPixmap *pixmap;
1526         GdkPixbuf *pixbuf;
1527         GdkPixbuf *pb;
1528         gint width, height;
1529
1530         if (!imd) return;
1531
1532         pixbuf = image_get_pixbuf(imd);
1533         if (!pixbuf) return;
1534
1535         screen = gtk_widget_get_screen(imd->widget);
1536         rootwindow = gdk_screen_get_root_window(screen);
1537         if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
1538
1539         if (scaled)
1540                 {
1541                 width = gdk_screen_width();
1542                 height = gdk_screen_height();
1543                 }
1544         else
1545                 {
1546                 pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
1547                 }
1548
1549         pb = gdk_pixbuf_scale_simple(pixbuf, width, height, (GdkInterpType)options->image.zoom_quality);
1550
1551         gdk_pixbuf_render_pixmap_and_mask(pb, &pixmap, NULL, 128);
1552         gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
1553         gdk_window_clear(rootwindow);
1554         g_object_unref(pb);
1555         g_object_unref(pixmap);
1556
1557         gdk_flush();
1558 }
1559
1560 void image_select(ImageWindow *imd, gboolean select)
1561 {
1562         if (!imd->has_frame) return;
1563
1564         if (select)
1565                 {
1566                 gtk_widget_set_state(imd->widget, GTK_STATE_SELECTED);
1567                 gtk_widget_set_state(imd->pr, GTK_STATE_NORMAL); /* do not propagate */
1568                 }
1569         else
1570                 gtk_widget_set_state(imd->widget, GTK_STATE_NORMAL);
1571 }
1572
1573 void image_set_selectable(ImageWindow *imd, gboolean selectable)
1574 {
1575         if (!imd->has_frame) return;
1576
1577         gtk_frame_set_shadow_type(GTK_FRAME(imd->frame), GTK_SHADOW_NONE);
1578         gtk_container_set_border_width(GTK_CONTAINER(imd->frame), selectable ? 4 : 0);
1579 }
1580
1581 void image_grab_focus(ImageWindow *imd)
1582 {
1583         if (imd->has_frame)
1584                 {
1585                 gtk_widget_grab_focus(imd->frame);
1586                 }
1587         else
1588                 {
1589                 gtk_widget_grab_focus(imd->widget);
1590                 }
1591 }
1592
1593
1594 /*
1595  *-------------------------------------------------------------------
1596  * prefs sync
1597  *-------------------------------------------------------------------
1598  */
1599
1600 static void image_options_set(ImageWindow *imd)
1601 {
1602         g_object_set(G_OBJECT(imd->pr), "zoom_quality", options->image.zoom_quality,
1603                                         "zoom_2pass", options->image.zoom_2pass,
1604                                         "zoom_expand", options->image.zoom_to_fit_allow_expand,
1605                                         "dither_quality", options->image.dither_quality,
1606                                         "scroll_reset", options->image.scroll_reset_method,
1607                                         "cache_display", options->image.tile_cache_max,
1608                                         "window_fit", (imd->top_window_sync && options->image.fit_window_to_image),
1609                                         "window_limit", options->image.limit_window_size,
1610                                         "window_limit_value", options->image.max_window_size,
1611                                         "autofit_limit", options->image.limit_autofit_size,
1612                                         "autofit_limit_value", options->image.max_autofit_size,
1613
1614                                         NULL);
1615
1616         pixbuf_renderer_set_parent((PixbufRenderer *)imd->pr, (GtkWindow *)imd->top_window);
1617 }
1618
1619 void image_options_sync(void)
1620 {
1621         GList *work;
1622
1623         work = image_list;
1624         while (work)
1625                 {
1626                 ImageWindow *imd;
1627
1628                 imd = work->data;
1629                 work = work->next;
1630
1631                 image_options_set(imd);
1632                 }
1633 }
1634
1635 /*
1636  *-------------------------------------------------------------------
1637  * init / destroy
1638  *-------------------------------------------------------------------
1639  */
1640
1641 static void image_free(ImageWindow *imd)
1642 {
1643         image_list = g_list_remove(image_list, imd);
1644
1645         if (imd->auto_refresh && imd->image_fd)
1646                 file_data_unregister_real_time_monitor(imd->image_fd);
1647
1648         file_data_unregister_notify_func(image_notify_cb, imd);
1649
1650         image_reset(imd);
1651
1652         image_read_ahead_cancel(imd);
1653
1654         file_data_unref(imd->image_fd);
1655         g_free(imd->title);
1656         g_free(imd->title_right);
1657         g_free(imd);
1658 }
1659
1660 static void image_destroy_cb(GtkObject *widget, gpointer data)
1661 {
1662         ImageWindow *imd = data;
1663         image_free(imd);
1664 }
1665
1666 gboolean selectable_frame_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
1667 {
1668         gtk_paint_flat_box(widget->style,
1669                            widget->window,
1670                            widget->state,
1671                            (GTK_FRAME(widget))->shadow_type,
1672                            NULL,
1673                            widget,
1674                            NULL,
1675                            widget->allocation.x + 3, widget->allocation.y + 3,
1676                            widget->allocation.width - 6, widget->allocation.height - 6);
1677
1678
1679         return FALSE;
1680 }
1681
1682
1683 void image_set_frame(ImageWindow *imd, gboolean frame)
1684 {
1685         frame = !!frame;
1686
1687         if (frame == imd->has_frame) return;
1688
1689         gtk_widget_hide(imd->pr);
1690
1691         if (frame)
1692                 {
1693                 imd->frame = gtk_frame_new(NULL);
1694 #if GTK_CHECK_VERSION(2,12,0)
1695                 g_object_ref(imd->pr);
1696 #else
1697                 gtk_widget_ref(imd->pr);
1698 #endif
1699                 if (imd->has_frame != -1) gtk_container_remove(GTK_CONTAINER(imd->widget), imd->pr);
1700                 gtk_container_add(GTK_CONTAINER(imd->frame), imd->pr);
1701
1702 #if GTK_CHECK_VERSION(2,12,0)
1703                 g_object_unref(imd->pr);
1704 #else
1705                 gtk_widget_unref(imd->pr);
1706 #endif
1707                 g_signal_connect(G_OBJECT(imd->frame), "expose_event",
1708                                  G_CALLBACK(selectable_frame_expose_cb), NULL);
1709
1710                 GTK_WIDGET_SET_FLAGS(imd->frame, GTK_CAN_FOCUS);
1711                 g_signal_connect(G_OBJECT(imd->frame), "focus_in_event",
1712                                  G_CALLBACK(image_focus_in_cb), imd);
1713                 g_signal_connect(G_OBJECT(imd->frame), "focus_out_event",
1714                                  G_CALLBACK(image_focus_out_cb), imd);
1715
1716                 g_signal_connect_after(G_OBJECT(imd->frame), "expose_event",
1717                                        G_CALLBACK(image_focus_expose), imd);
1718
1719 #if GTK_CHECK_VERSION(2,14,0)
1720                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->frame, TRUE, TRUE, 0);
1721 #else
1722                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->frame);
1723 #endif
1724                 gtk_widget_show(imd->frame);
1725                 }
1726         else
1727                 {
1728 #if GTK_CHECK_VERSION(2,12,0)
1729                 g_object_ref(imd->pr);
1730 #else
1731                 gtk_widget_ref(imd->pr);
1732 #endif
1733                 if (imd->frame)
1734                         {
1735                         gtk_container_remove(GTK_CONTAINER(imd->frame), imd->pr);
1736                         gtk_widget_destroy(imd->frame);
1737                         imd->frame = NULL;
1738                         }
1739 #if GTK_CHECK_VERSION(2,14,0)
1740                 gtk_box_pack_start(GTK_BOX(imd->widget), imd->pr, TRUE, TRUE, 0);
1741 #else
1742                 gtk_box_pack_start_defaults(GTK_BOX(imd->widget), imd->pr);
1743 #endif
1744
1745 #if GTK_CHECK_VERSION(2,12,0)
1746                 g_object_unref(imd->pr);
1747 #else
1748                 gtk_widget_unref(imd->pr);
1749 #endif
1750                 }
1751
1752         gtk_widget_show(imd->pr);
1753
1754         imd->has_frame = frame;
1755 }
1756
1757 ImageWindow *image_new(gboolean frame)
1758 {
1759         ImageWindow *imd;
1760
1761         imd = g_new0(ImageWindow, 1);
1762
1763         imd->unknown = TRUE;
1764         imd->has_frame = -1; /* not initialized; for image_set_frame */
1765         imd->delay_alter_type = ALTER_NONE;
1766         imd->state = IMAGE_STATE_NONE;
1767         imd->color_profile_from_image = COLOR_PROFILE_NONE;
1768         imd->orientation = 1;
1769
1770         imd->pr = GTK_WIDGET(pixbuf_renderer_new());
1771
1772         image_options_set(imd);
1773
1774         imd->widget = gtk_vbox_new(0, 0);
1775
1776         image_set_frame(imd, frame);
1777
1778         image_set_selectable(imd, 0);
1779
1780         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1781                          G_CALLBACK(image_click_cb), imd);
1782         g_signal_connect(G_OBJECT(imd->pr), "scroll_notify",
1783                          G_CALLBACK(image_scroll_notify_cb), imd);
1784
1785         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1786                          G_CALLBACK(image_scroll_cb), imd);
1787
1788         g_signal_connect(G_OBJECT(imd->pr), "destroy",
1789                          G_CALLBACK(image_destroy_cb), imd);
1790
1791         g_signal_connect(G_OBJECT(imd->pr), "zoom",
1792                          G_CALLBACK(image_zoom_cb), imd);
1793         g_signal_connect(G_OBJECT(imd->pr), "render_complete",
1794                          G_CALLBACK(image_render_complete_cb), imd);
1795         g_signal_connect(G_OBJECT(imd->pr), "drag",
1796                          G_CALLBACK(image_drag_cb), imd);
1797
1798         file_data_register_notify_func(image_notify_cb, imd, NOTIFY_PRIORITY_LOW);
1799
1800         image_list = g_list_append(image_list, imd);
1801
1802         return imd;
1803 }
1804 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */