src/image.c

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