src/image-overlay.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 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 #include "main.h"
  14 #include "image-overlay.h"
  15
  16 #include "collect.h"
  17 #include "exif.h"
  18 #include "filelist.h"
  19 #include "image.h"
  20 #include "img-view.h"
  21 #include "layout.h"
  22 #include "pixbuf-renderer.h"
  23 #include "pixbuf_util.h"
  24 #include "histogram.h"
  25
  26
  27 /*
  28  *----------------------------------------------------------------------------
  29  * image overlay
  30  *----------------------------------------------------------------------------
  31  */
  32
  33 typedef struct _OverlayStateData OverlayStateData;
  34 struct _OverlayStateData {
  35         ImageWindow *imd;
  36         ImageState changed_states;
  37
  38         gint show_info;
  39         gint show_status;
  40
  41         gint ovl_info;
  42
  43         gint icon_time[IMAGE_OSD_COUNT];
  44         gint icon_id[IMAGE_OSD_COUNT];
  45
  46         gint idle_id;
  47         gint timer_id;
  48         gulong destroy_id;
  49 };
  50
  51
  52 typedef struct _OSDIcon OSDIcon;
  53 struct _OSDIcon {
  54         gint reset;     /* reset on new image */
  55         gint x;         /* x, y offset */
  56         gint y;
  57         gchar *key;     /* inline pixbuf */
  58 };
  59
  60 static OSDIcon osd_icons[] = {
  61         {  TRUE,   0,   0, NULL },                      /* none */
  62         {  TRUE, -10, -10, NULL },                      /* auto rotated */
  63         {  TRUE, -10, -10, NULL },                      /* user rotated */
  64         {  TRUE, -40, -10, NULL },                      /* color embedded */
  65         {  TRUE, -70, -10, NULL },                      /* first image */
  66         {  TRUE, -70, -10, NULL },                      /* last image */
  67         { FALSE, -70, -10, NULL },                      /* osd enabled */
  68         { FALSE, 0, 0, NULL }
  69 };
  70
  71 #define OSD_DATA "overlay-data"
  72
  73 #define OSD_INFO_X 10
  74 #define OSD_INFO_Y -10
  75
  76 #define IMAGE_OSD_DEFAULT_DURATION 30
  77
  78 #define HISTOGRAM_HEIGHT 140
  79
  80 static void image_osd_timer_schedule(OverlayStateData *osd);
  81
  82
  83 void set_default_image_overlay_template_string(ConfOptions *options)
  84 {
  85         if (options->image_overlay.common.template_string) g_free(options->image_overlay.common.template_string);
  86         options->image_overlay.common.template_string = g_strdup(DEFAULT_OVERLAY_INFO);
  87 }
  88
  89 /*
  90  *----------------------------------------------------------------------------
  91  * image histogram
  92  *----------------------------------------------------------------------------
  93  */
  94
  95
  96 void image_osd_histogram_onoff_toggle(ImageWindow *imd, gint x)
  97 {
  98         imd->histogram_enabled = !!(x);
  99         if (imd->histogram_enabled && !imd->histogram)
 100                 imd->histogram = histogram_new();
 101 }
 102
 103 gint image_osd_histogram_onoff_status(ImageWindow *imd)
 104 {
 105       return imd->histogram_enabled;
 106 }
 107
 108 void image_osd_histogram_chan_toggle(ImageWindow *imd)
 109 {
 110         if (imd->histogram)
 111                 {
 112                 histogram_set_channel(imd->histogram, (histogram_get_channel(imd->histogram) +1)%HCHAN_COUNT);
 113                 image_osd_update(imd);
 114                 }
 115 }
 116
 117 void image_osd_histogram_log_toggle(ImageWindow *imd)
 118 {
 119         if (imd->histogram)
 120                 {
 121                 histogram_set_mode(imd->histogram, !histogram_get_mode(imd->histogram));
 122                 image_osd_update(imd);
 123                 }
 124 }
 125
 126 void image_osd_toggle(ImageWindow *imd)
 127 {
 128         if (image_osd_get(imd, NULL, NULL))
 129                 {
 130                 if (image_osd_histogram_onoff_status(imd))
 131                         {
 132                         image_osd_histogram_onoff_toggle(imd, 0);
 133                         image_osd_update(imd);
 134                         }
 135                 else
 136                         {
 137                         image_osd_set(imd, FALSE, FALSE);
 138                         }
 139                 }
 140         else
 141                 {
 142                 image_osd_set(imd, TRUE, TRUE);
 143                 image_osd_icon(imd, IMAGE_OSD_ICON, -1);
 144                 image_osd_histogram_onoff_toggle(imd, 1);
 145                 image_osd_update(imd);
 146                 }
 147 }
 148
 149 static gchar *image_osd_mkinfo(const gchar *str, ImageWindow *imd, GHashTable *vars)
 150 {
 151         gchar delim = '%', imp = '|', sep[] = " - ";
 152         gchar *start, *end;
 153         gint pos, prev;
 154         gint last;
 155         gchar *name, *data;
 156         GString *new;
 157         gchar *ret;
 158         ExifData *exif;
 159
 160         if (!str || !*str) return g_strdup("");
 161
 162         new = g_string_new(str);
 163
 164         exif = exif_read_fd(imd->image_fd);
 165         prev = 0;
 166         last = FALSE;
 167
 168         while (TRUE)
 169                 {
 170                 gint was_digit = 0;
 171                 gint limit = 0;
 172                 gchar *trunc = NULL;
 173                 gchar *p;
 174
 175                 start = strchr(new->str, delim);
 176                 if (!start)
 177                         break;
 178                 end = strchr(start+1, delim);
 179                 if (!end)
 180                         break;
 181
 182                 for (p = end; p > start; p--)
 183                         {
 184                         if (*p == ':' && was_digit)
 185                                 {
 186                                 trunc = p;
 187                                 break;
 188                                 }
 189                         was_digit = g_ascii_isdigit(*p);
 190                         }
 191
 192                 if (trunc) limit = atoi(trunc+1);
 193
 194                 name = g_strndup(start+1, ((limit > 0) ? trunc : end)-start-1);
 195
 196                 pos = start-new->str;
 197                 data = g_strdup(g_hash_table_lookup(vars, name));
 198                 if (data && strcmp(name, "zoom") == 0) imd->overlay_show_zoom = TRUE;
 199                 if (!data && exif)
 200                         data = exif_get_data_as_text(exif, name);
 201                 if (data && *data && limit > 0 && strlen(data) > limit + 3)
 202                         {
 203                         gchar *new_data = g_strdup_printf("%-*.*s...", limit, limit, data);
 204                         g_free(data);
 205                         data = new_data;
 206                         }
 207
 208                 g_string_erase(new, pos, end-start+1);
 209                 if (data)
 210                         g_string_insert(new, pos, data);
 211                 if (pos-prev == 2 && new->str[pos-1] == imp)
 212                         {
 213                         g_string_erase(new, --pos, 1);
 214                         if (last && data)
 215                                 {
 216                                 g_string_insert(new, pos, sep);
 217                                 pos += strlen(sep);
 218                                 }
 219                         }
 220
 221                 prev = data ? pos+strlen(data)-1 : pos-1;
 222                 last = data ? TRUE : last;
 223                 g_free(name);
 224                 g_free(data);
 225                 }
 226
 227         /* search and destroy empty lines */
 228         end = new->str;
 229         while ((start = strchr(end, '\n')))
 230                 {
 231                 end = start;
 232                 while (*++(end) == '\n')
 233                         ;
 234                 g_string_erase(new, start-new->str, end-start-1);
 235                 }
 236
 237         g_strchomp(new->str);
 238
 239         ret = new->str;
 240         g_string_free(new, FALSE);
 241
 242         return ret;
 243 }
 244
 245 static GdkPixbuf *image_osd_info_render(ImageWindow *imd)
 246 {
 247         GdkPixbuf *pixbuf = NULL;
 248         gint width, height;
 249         PangoLayout *layout;
 250         const gchar *name;
 251         gchar *name_escaped;
 252         gchar *text;
 253         gchar *size;
 254         gint n, t;
 255         CollectionData *cd;
 256         CollectInfo *info;
 257         GdkPixbuf *imgpixbuf = NULL;
 258         LayoutWindow *lw = NULL;
 259         gint with_hist = 0;
 260         gchar *ct;
 261         gint w, h;
 262         GHashTable *vars;
 263
 264         vars = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_free);
 265
 266         name = image_get_name(imd);
 267         if (name)
 268                 {
 269                 name_escaped = g_markup_escape_text(name, -1);
 270                 }
 271         else
 272                 {
 273                 name_escaped = NULL;
 274                 }
 275
 276         cd = image_get_collection(imd, &info);
 277         if (cd)
 278                 {
 279                 gchar *buf;
 280
 281                 t = g_list_length(cd->list);
 282                 n = g_list_index(cd->list, info) + 1;
 283                 buf = g_markup_escape_text((cd->name) ? cd->name : _("Untitled"), -1);
 284                 ct = g_strdup_printf("<i>%s</i>\n", buf);
 285                 g_free(buf);
 286                 }
 287         else
 288                 {
 289                 lw = layout_find_by_image(imd);
 290                 if (lw)
 291                         {
 292                         if (lw->slideshow)
 293                                 {
 294                                 n = g_list_length(lw->slideshow->list_done);
 295                                 t = n + g_list_length(lw->slideshow->list);
 296                                 if (n == 0) n = t;
 297                                 }
 298                         else
 299                                 {
 300                                 t = layout_list_count(lw, NULL);
 301                                 n = layout_list_get_index(lw, image_get_path(lw->image)) + 1;
 302                                 }
 303                         }
 304                 else if (view_window_find_image(imd, &n, &t))
 305                         {
 306                         n++;
 307                         }
 308                 else
 309                         {
 310                         t = 1;
 311                         n = 1;
 312                         }
 313
 314                 if (n < 1) n = 1;
 315                 if (t < 1) t = 1;
 316
 317                 ct = g_strdup("");
 318                 }
 319
 320         size = text_from_size_abrev(imd->size);
 321         if (!imd->unknown)
 322                 {
 323                 if (imd->delay_flip &&
 324                     imd->il && imd->il->pixbuf &&
 325                     image_get_pixbuf(imd) != imd->il->pixbuf)
 326                         {
 327                         w = gdk_pixbuf_get_width(imd->il->pixbuf);
 328                         h = gdk_pixbuf_get_height(imd->il->pixbuf);
 329                         imgpixbuf = imd->il->pixbuf;
 330                         }
 331                 else
 332                         {
 333                         pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), &w, &h);
 334                         imgpixbuf = (PIXBUF_RENDERER(imd->pr))->pixbuf;
 335                         }
 336
 337                 if (imgpixbuf && imd->histogram_enabled && imd->histogram
 338                               && (!imd->il || imd->il->done))
 339                         with_hist=1;
 340
 341                 g_hash_table_insert(vars, "width", g_strdup_printf("%d", w));
 342                 g_hash_table_insert(vars, "height", g_strdup_printf("%d", h));
 343                 g_hash_table_insert(vars, "res", g_strdup_printf("%d × %d", w, h));
 344                 }
 345
 346         g_hash_table_insert(vars, "collection", g_strdup(ct));
 347         g_hash_table_insert(vars, "number", g_strdup_printf("%d", n));
 348         g_hash_table_insert(vars, "total", g_strdup_printf("%d", t));
 349         g_hash_table_insert(vars, "name", g_strdup(name_escaped));
 350         g_hash_table_insert(vars, "date", g_strdup(text_from_time(imd->mtime)));
 351         g_hash_table_insert(vars, "size", g_strdup(size));
 352         g_hash_table_insert(vars, "zoom", image_zoom_get_as_text(imd));
 353
 354         if (!name_escaped)
 355                 {
 356                 text = g_strdup_printf(_("Untitled"));
 357                 }
 358         else
 359                 {
 360                 text = image_osd_mkinfo(options->image_overlay.common.template_string, imd, vars);
 361                 }
 362
 363         g_free(size);
 364         g_free(ct);
 365         g_free(name_escaped);
 366         g_hash_table_destroy(vars);
 367
 368         {
 369         FileData *fd = image_get_fd(imd);
 370
 371         if (fd) /* fd may be null after file deletion */
 372                 {
 373                 gint active_marks = 0;
 374                 gint mark;
 375                 gchar *text2;
 376
 377                 for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 378                         {
 379                         active_marks += fd->marks[mark];
 380                         }
 381
 382
 383                 if (active_marks > 0)
 384                         {
 385                         GString *buf = g_string_sized_new(FILEDATA_MARKS_SIZE * 2);
 386
 387                         for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 388                                 {
 389                                 g_string_append_printf(buf, fd->marks[mark] ? " <span background='#FF00FF'>%c</span>" : " %c", '1' + mark);
 390                                 }
 391
 392                         if (*text)
 393                                 text2 = g_strdup_printf("%s\n%s", text, buf->str);
 394                         else
 395                                 text2 = g_strdup(buf->str);
 396                         g_string_free(buf, TRUE);
 397                         g_free(text);
 398                         text = text2;
 399                         }
 400
 401                 if (with_hist)
 402                         {
 403                         if (*text)
 404                                 text2 = g_strdup_printf("%s\n%s", text, histogram_label(imd->histogram));
 405                         else
 406                                 text2 = g_strdup(histogram_label(imd->histogram));
 407                         g_free(text);
 408                         text = text2;
 409                         }
 410                 }
 411         }
 412
 413         layout = gtk_widget_create_pango_layout(imd->pr, NULL);
 414         pango_layout_set_markup(layout, text, -1);
 415         g_free(text);
 416
 417         pango_layout_get_pixel_size(layout, &width, &height);
 418         /* with empty text width is set to 0, but not height) */
 419         if (width == 0)
 420                 height = 0;
 421         else if (height == 0)
 422                 width = 0;
 423         if (width > 0) width += 10;
 424         if (height > 0) height += 10;
 425
 426         if (with_hist)
 427                 {
 428                 histogram_read(imd->histogram, imgpixbuf);
 429                 if (width < 266) width = 266;
 430                 height += HISTOGRAM_HEIGHT + 5;
 431                 }
 432
 433         if (width > 0 && height > 0)
 434                 {
 435                 /* TODO: make osd color configurable --Zas */
 436                 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
 437                 pixbuf_set_rect_fill(pixbuf, 3, 3, width-6, height-6, 240, 240, 240, 210);
 438                 pixbuf_set_rect(pixbuf, 0, 0, width, height, 240, 240, 240, 80, 1, 1, 1, 1);
 439                 pixbuf_set_rect(pixbuf, 1, 1, width-2, height-2, 240, 240, 240, 130, 1, 1, 1, 1);
 440                 pixbuf_set_rect(pixbuf, 2, 2, width-4, height-4, 240, 240, 240, 180, 1, 1, 1, 1);
 441                 pixbuf_pixel_set(pixbuf, 0, 0, 0, 0, 0, 0);
 442                 pixbuf_pixel_set(pixbuf, width - 1, 0, 0, 0, 0, 0);
 443                 pixbuf_pixel_set(pixbuf, 0, height - 1, 0, 0, 0, 0);
 444                 pixbuf_pixel_set(pixbuf, width - 1, height - 1, 0, 0, 0, 0);
 445
 446                 if (with_hist)
 447                         histogram_draw(imd->histogram, pixbuf, 5, height - HISTOGRAM_HEIGHT - 5 , width - 10, HISTOGRAM_HEIGHT);
 448
 449                 pixbuf_draw_layout(pixbuf, layout, imd->pr, 5, 5, 0, 0, 0, 255);
 450         }
 451
 452         g_object_unref(G_OBJECT(layout));
 453
 454         return pixbuf;
 455 }
 456
 457 static GdkPixbuf *image_osd_icon_pixbuf(ImageOSDFlag flag)
 458 {
 459         static GdkPixbuf **icons = NULL;
 460         GdkPixbuf *icon = NULL;
 461
 462         if (!icons) icons = g_new0(GdkPixbuf *, IMAGE_OSD_COUNT);
 463         if (icons[flag]) return icons[flag];
 464
 465         if (osd_icons[flag].key)
 466                 {
 467                 icon = pixbuf_inline(osd_icons[flag].key);
 468                 }
 469
 470         if (!icon)
 471                 {
 472                 icon = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 24, 24);
 473                 pixbuf_set_rect_fill(icon, 1, 1, 22, 22, 255, 255, 255, 200);
 474                 pixbuf_set_rect(icon, 0, 0, 24, 24, 0, 0, 0, 128, 1, 1, 1, 1);
 475                 switch (flag)
 476                         {
 477                         case IMAGE_OSD_ROTATE_AUTO:
 478                                 pixbuf_set_rect(icon, 3, 8, 11, 12,
 479                                                 0, 0, 0, 255,
 480                                                 3, 0, 3, 0);
 481                                 pixbuf_draw_triangle(icon, 14, 3, 6, 12,
 482                                                      20, 9, 14, 15, 14, 3,
 483                                                      0, 0, 0, 255);
 484                                 break;
 485                         case IMAGE_OSD_ROTATE_USER:
 486                                 break;
 487                         case IMAGE_OSD_COLOR:
 488                                 pixbuf_set_rect_fill(icon, 3, 3, 18, 6, 200, 0, 0, 255);
 489                                 pixbuf_set_rect_fill(icon, 3, 9, 18, 6, 0, 200, 0, 255);
 490                                 pixbuf_set_rect_fill(icon, 3, 15, 18, 6, 0, 0, 200, 255);
 491                                 break;
 492                         case IMAGE_OSD_FIRST:
 493                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 3, 0);
 494                                 pixbuf_draw_triangle(icon, 6, 5, 12, 6,
 495                                                      12, 5, 18, 11, 6, 11,
 496                                                      0, 0, 0, 255);
 497                                 break;
 498                         case IMAGE_OSD_LAST:
 499                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 0, 3);
 500                                 pixbuf_draw_triangle(icon, 6, 12, 12, 6,
 501                                                      12, 18, 6, 12, 18, 12,
 502                                                      0, 0, 0, 255);
 503                                 break;
 504                         case IMAGE_OSD_ICON:
 505                                 pixbuf_set_rect_fill(icon, 11, 3, 3, 12, 0, 0, 0, 255);
 506                                 pixbuf_set_rect_fill(icon, 11, 17, 3, 3, 0, 0, 0, 255);
 507                                 break;
 508                         default:
 509                                 break;
 510                         }
 511                 }
 512
 513         icons[flag] = icon;
 514
 515         return icon;
 516 }
 517
 518 static void image_osd_icon_show(OverlayStateData *osd, ImageOSDFlag flag)
 519 {
 520         GdkPixbuf *pixbuf;
 521
 522         if (osd->icon_id[flag]) return;
 523
 524         pixbuf = image_osd_icon_pixbuf(flag);
 525         if (!pixbuf) return;
 526
 527         osd->icon_id[flag] = image_overlay_add(osd->imd, pixbuf,
 528                                                osd_icons[flag].x, osd_icons[flag].y,
 529                                                TRUE, FALSE);
 530 }
 531
 532 static void image_osd_icon_hide(OverlayStateData *osd, ImageOSDFlag flag)
 533 {
 534         if (osd->icon_id[flag])
 535                 {
 536                 image_overlay_remove(osd->imd, osd->icon_id[flag]);
 537                 osd->icon_id[flag] = 0;
 538                 }
 539 }
 540
 541 static gint image_osd_update_cb(gpointer data)
 542 {
 543         OverlayStateData *osd = data;
 544
 545         osd->imd->overlay_show_zoom = FALSE;
 546
 547         if (osd->show_info)
 548                 {
 549                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 550                         {
 551                         GdkPixbuf *pixbuf;
 552
 553                         pixbuf = image_osd_info_render(osd->imd);
 554                         if (pixbuf)
 555                                 {
 556                                 if (osd->ovl_info == 0)
 557                                         {
 558                                         osd->ovl_info = image_overlay_add(osd->imd, pixbuf,
 559                                                                           OSD_INFO_X, OSD_INFO_Y, TRUE, FALSE);
 560                                         }
 561                                 else
 562                                         {
 563                                         image_overlay_set(osd->imd, osd->ovl_info, pixbuf, OSD_INFO_X, OSD_INFO_Y);
 564                                         }
 565                                 g_object_unref(pixbuf);
 566                                 }
 567                         else if (osd->ovl_info)
 568                                 {
 569                                 image_overlay_remove(osd->imd, osd->ovl_info);
 570                                 osd->ovl_info = 0;
 571                                 }
 572                         }
 573                 }
 574         else
 575                 {
 576                 if (osd->ovl_info)
 577                         {
 578                         image_overlay_remove(osd->imd, osd->ovl_info);
 579                         osd->ovl_info = 0;
 580                         }
 581                 }
 582
 583         if (osd->show_status)
 584                 {
 585                 gint i;
 586
 587                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 588                         {
 589                         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 590                                 {
 591                                 if (osd_icons[i].reset) osd->icon_time[i] = 0;
 592                                 }
 593                         }
 594
 595                 if (osd->changed_states & IMAGE_STATE_COLOR_ADJ)
 596                         {
 597                         osd->icon_time[IMAGE_OSD_COLOR] = IMAGE_OSD_DEFAULT_DURATION + 1;
 598                         image_osd_timer_schedule(osd);
 599                         }
 600
 601                 if (osd->changed_states & IMAGE_STATE_ROTATE_AUTO)
 602                         {
 603                         gint n = 0;
 604
 605                         if (osd->imd->state & IMAGE_STATE_ROTATE_AUTO)
 606                                 {
 607                                 n = 1;
 608                                 if (!osd->imd->cm) n += IMAGE_OSD_DEFAULT_DURATION;
 609                                 }
 610
 611                         osd->icon_time[IMAGE_OSD_ROTATE_AUTO] = n;
 612                         image_osd_timer_schedule(osd);
 613                         }
 614
 615                 for (i = 0; i < IMAGE_OSD_COUNT; i++)
 616                         {
 617                         if (osd->icon_time[i] > 0)
 618                                 {
 619                                 image_osd_icon_show(osd, i);
 620                                 }
 621                         else
 622                                 {
 623                                 image_osd_icon_hide(osd, i);
 624                                 }
 625                         }
 626                 }
 627         else
 628                 {
 629                 gint i;
 630
 631                 for (i = 0; i < IMAGE_OSD_COUNT; i++)
 632                         {
 633                         image_osd_icon_hide(osd, i);
 634                         }
 635                 }
 636
 637         if (osd->imd->il && osd->imd->il->done)
 638                 osd->changed_states = IMAGE_STATE_NONE;
 639         osd->idle_id = -1;
 640         return FALSE;
 641 }
 642
 643 static void image_osd_update_schedule(OverlayStateData *osd, gint force)
 644 {
 645         if (force) osd->changed_states |= IMAGE_STATE_IMAGE;
 646
 647         if (osd->idle_id == -1)
 648                 {
 649                 osd->idle_id = g_idle_add_full(G_PRIORITY_HIGH, image_osd_update_cb, osd, NULL);
 650                 }
 651 }
 652
 653 void image_osd_update(ImageWindow *imd)
 654 {
 655         OverlayStateData *osd;
 656
 657         if (!imd) return;
 658
 659         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 660         if (!osd) return;
 661
 662         image_osd_update_schedule(osd, TRUE);
 663 }
 664
 665 static gint image_osd_timer_cb(gpointer data)
 666 {
 667         OverlayStateData *osd = data;
 668         gint done = TRUE;
 669         gint changed = FALSE;
 670         gint i;
 671
 672         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 673                 {
 674                 if (osd->icon_time[i] > 1)
 675                         {
 676                         osd->icon_time[i]--;
 677                         if (osd->icon_time[i] < 2)
 678                                 {
 679                                 osd->icon_time[i] = 0;
 680                                 changed = TRUE;
 681                                 }
 682                         else
 683                                 {
 684                                 done = FALSE;
 685                                 }
 686                         }
 687                 }
 688
 689         if (changed) image_osd_update_schedule(osd, FALSE);
 690
 691         if (done)
 692                 {
 693                 osd->timer_id = -1;
 694                 return FALSE;
 695                 }
 696
 697         return TRUE;
 698 }
 699
 700 static void image_osd_timer_schedule(OverlayStateData *osd)
 701 {
 702         if (osd->timer_id == -1)
 703                 {
 704                 osd->timer_id = g_timeout_add(100, image_osd_timer_cb, osd);
 705                 }
 706 }
 707
 708 static void image_osd_state_cb(ImageWindow *imd, ImageState state, gpointer data)
 709 {
 710         OverlayStateData *osd = data;
 711
 712         osd->changed_states |= state;
 713         image_osd_update_schedule(osd, FALSE);
 714 }
 715
 716 static void image_osd_free(OverlayStateData *osd)
 717 {
 718         if (!osd) return;
 719
 720         if (osd->idle_id != -1) g_source_remove(osd->idle_id);
 721         if (osd->timer_id != -1) g_source_remove(osd->timer_id);
 722
 723         if (osd->imd)
 724                 {
 725                 gint i;
 726
 727                 g_object_set_data(G_OBJECT(osd->imd->pr), "IMAGE_OVERLAY_DATA", NULL);
 728                 g_signal_handler_disconnect(osd->imd->pr, osd->destroy_id);
 729
 730                 image_set_state_func(osd->imd, NULL, NULL);
 731                 image_overlay_remove(osd->imd, osd->ovl_info);
 732
 733                 for (i = 0; i < IMAGE_OSD_COUNT; i++)
 734                         {
 735                         image_osd_icon_hide(osd, i);
 736                         }
 737                 }
 738
 739         g_free(osd);
 740 }
 741
 742 static void image_osd_remove(ImageWindow *imd)
 743 {
 744         OverlayStateData *osd;
 745
 746         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 747         image_osd_free(osd);
 748 }
 749
 750 static void image_osd_destroy_cb(GtkWidget *widget, gpointer data)
 751 {
 752         OverlayStateData *osd = data;
 753
 754         osd->imd = NULL;
 755         image_osd_free(osd);
 756 }
 757
 758 static void image_osd_enable(ImageWindow *imd, gint info, gint status)
 759 {
 760         OverlayStateData *osd;
 761
 762         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 763         if (!osd)
 764                 {
 765                 osd = g_new0(OverlayStateData, 1);
 766                 osd->imd = imd;
 767                 osd->idle_id = -1;
 768                 osd->timer_id = -1;
 769
 770                 osd->destroy_id = g_signal_connect(G_OBJECT(imd->pr), "destroy",
 771                                                    G_CALLBACK(image_osd_destroy_cb), osd);
 772                 g_object_set_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA", osd);
 773
 774                 image_set_state_func(osd->imd, image_osd_state_cb, osd);
 775                 }
 776
 777         if (osd->show_info != info ||
 778             osd->show_status != status)
 779                 {
 780                 osd->show_info = info;
 781                 osd->show_status = status;
 782
 783                 image_osd_update_schedule(osd, TRUE);
 784                 }
 785 }
 786
 787 void image_osd_set(ImageWindow *imd, gint info, gint status)
 788 {
 789         if (!imd) return;
 790
 791         if (!info && !status)
 792                 {
 793                 image_osd_remove(imd);
 794                 return;
 795                 }
 796
 797         image_osd_enable(imd, info, status);
 798 }
 799
 800 gint image_osd_get(ImageWindow *imd, gint *info, gint *status)
 801 {
 802         OverlayStateData *osd;
 803
 804         if (!imd) return FALSE;
 805
 806         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 807         if (!osd) return FALSE;
 808
 809         if (info) *info = osd->show_info;
 810         if (status) *status = osd->show_status;
 811
 812         return TRUE;
 813 }
 814
 815 /* duration:
 816     0 = hide
 817     1 = show
 818    2+ = show for duration tenths of a second
 819    -1 = use default duration
 820  */
 821 void image_osd_icon(ImageWindow *imd, ImageOSDFlag flag, gint duration)
 822 {
 823         OverlayStateData *osd;
 824
 825         if (!imd) return;
 826
 827         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 828         if (!osd) return;
 829
 830         if (flag < IMAGE_OSD_NONE || flag >= IMAGE_OSD_COUNT) return;
 831         if (duration < 0) duration = IMAGE_OSD_DEFAULT_DURATION;
 832         if (duration > 1) duration += 1;
 833
 834         osd->icon_time[flag] = duration;
 835
 836         image_osd_update_schedule(osd, FALSE);
 837         image_osd_timer_schedule(osd);
 838 }