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