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