src/image-overlay.c

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