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