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 "filedata.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
  34 typedef struct _OverlayStateData OverlayStateData;
  35 struct _OverlayStateData {
  36         ImageWindow *imd;
  37         ImageState changed_states;
  38
  39         OsdShowFlags show;
  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 static OverlayStateData *image_get_osd_data(ImageWindow *imd)
  90 {
  91         OverlayStateData *osd;
  92
  93         if (!imd) return NULL;
  94
  95         g_assert(imd->pr);
  96
  97         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
  98         return osd;
  99 }
 100
 101 static void image_set_osd_data(ImageWindow *imd, OverlayStateData *osd)
 102 {
 103         g_assert(imd);
 104         g_assert(imd->pr);
 105         g_object_set_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA", osd);
 106 }
 107
 108 /*
 109  *----------------------------------------------------------------------------
 110  * image histogram
 111  *----------------------------------------------------------------------------
 112  */
 113
 114
 115 static void image_osd_histogram_onoff_toggle(ImageWindow *imd, gint x)
 116 {
 117         imd->histogram_enabled = !!(x);
 118         if (imd->histogram_enabled && !imd->histogram)
 119                 imd->histogram = histogram_new();
 120 }
 121
 122 static gint image_osd_histogram_onoff_status(ImageWindow *imd)
 123 {
 124       return imd->histogram_enabled;
 125 }
 126
 127 void image_osd_histogram_chan_toggle(ImageWindow *imd)
 128 {
 129         if (!imd->histogram) return;
 130
 131         histogram_set_channel(imd->histogram, (histogram_get_channel(imd->histogram) +1)%HCHAN_COUNT);
 132         image_osd_update(imd);
 133 }
 134
 135 void image_osd_histogram_log_toggle(ImageWindow *imd)
 136 {
 137         if (!imd->histogram) return;
 138
 139         histogram_set_mode(imd->histogram, !histogram_get_mode(imd->histogram));
 140         image_osd_update(imd);
 141 }
 142
 143 void image_osd_toggle(ImageWindow *imd)
 144 {
 145         OsdShowFlags show;
 146
 147         if (image_osd_get(imd, &show) && (show & OSD_SHOW_INFO))
 148                 {
 149                 if (image_osd_histogram_onoff_status(imd))
 150                         {
 151                         image_osd_histogram_onoff_toggle(imd, 0);
 152                         image_osd_update(imd);
 153                         }
 154                 else
 155                         {
 156                         image_osd_set(imd, OSD_SHOW_NOTHING);
 157                         }
 158                 }
 159         else
 160                 {
 161                 image_osd_set(imd, OSD_SHOW_INFO | OSD_SHOW_STATUS);
 162                 image_osd_icon(imd, IMAGE_OSD_ICON, -1);
 163                 image_osd_histogram_onoff_toggle(imd, 1);
 164                 image_osd_update(imd);
 165                 }
 166 }
 167
 168 static gchar *image_osd_mkinfo(const gchar *str, ImageWindow *imd, GHashTable *vars)
 169 {
 170         gchar delim = '%', imp = '|', sep[] = " - ";
 171         gchar *start, *end;
 172         gint pos, prev;
 173         gint last;
 174         gchar *name, *data;
 175         GString *new;
 176         gchar *ret;
 177         ExifData *exif;
 178
 179         if (!str || !*str) return g_strdup("");
 180
 181         new = g_string_new(str);
 182
 183         exif = exif_read_fd(imd->image_fd);
 184         prev = 0;
 185         last = FALSE;
 186
 187         while (TRUE)
 188                 {
 189                 gint was_digit = 0;
 190                 gint limit = 0;
 191                 gchar *trunc = NULL;
 192                 gchar *p;
 193
 194                 start = strchr(new->str, delim);
 195                 if (!start)
 196                         break;
 197                 end = strchr(start+1, delim);
 198                 if (!end)
 199                         break;
 200
 201                 for (p = end; p > start; p--)
 202                         {
 203                         if (*p == ':' && was_digit)
 204                                 {
 205                                 trunc = p;
 206                                 break;
 207                                 }
 208                         was_digit = g_ascii_isdigit(*p);
 209                         }
 210
 211                 if (trunc) limit = atoi(trunc+1);
 212
 213                 name = g_strndup(start+1, ((limit > 0) ? trunc : end)-start-1);
 214
 215                 pos = start-new->str;
 216                 data = g_strdup(g_hash_table_lookup(vars, name));
 217                 if (data && strcmp(name, "zoom") == 0) imd->overlay_show_zoom = TRUE;
 218                 if (!data && exif)
 219                         data = exif_get_data_as_text(exif, name);
 220                 if (data && *data && limit > 0 && strlen(data) > limit + 3)
 221                         {
 222                         gchar *new_data = g_strdup_printf("%-*.*s...", limit, limit, data);
 223                         g_free(data);
 224                         data = new_data;
 225                         }
 226                 if (data)
 227                         {
 228                         /* Since we use pango markup to display, we need to escape here */
 229                         gchar *escaped = g_markup_escape_text(data, -1);
 230                         g_free(data);
 231                         data = escaped;
 232                         }
 233                 g_string_erase(new, pos, end-start+1);
 234                 if (data)
 235                         g_string_insert(new, pos, data);
 236                 if (pos-prev == 2 && new->str[pos-1] == imp)
 237                         {
 238                         g_string_erase(new, --pos, 1);
 239                         if (last && data)
 240                                 {
 241                                 g_string_insert(new, pos, sep);
 242                                 pos += strlen(sep);
 243                                 }
 244                         }
 245
 246                 prev = data ? pos+strlen(data)-1 : pos-1;
 247                 last = data ? TRUE : last;
 248                 g_free(name);
 249                 g_free(data);
 250                 }
 251
 252         exif_free(exif);
 253         /* search and destroy empty lines */
 254         end = new->str;
 255         while ((start = strchr(end, '\n')))
 256                 {
 257                 end = start;
 258                 while (*++(end) == '\n')
 259                         ;
 260                 g_string_erase(new, start-new->str, end-start-1);
 261                 }
 262
 263         g_strchomp(new->str);
 264
 265         ret = new->str;
 266         g_string_free(new, FALSE);
 267
 268         return ret;
 269 }
 270
 271 static GdkPixbuf *image_osd_info_render(ImageWindow *imd)
 272 {
 273         GdkPixbuf *pixbuf = NULL;
 274         gint width, height;
 275         PangoLayout *layout;
 276         const gchar *name;
 277         gchar *name_escaped;
 278         gchar *text;
 279         gchar *size;
 280         gint n, t;
 281         CollectionData *cd;
 282         CollectInfo *info;
 283         GdkPixbuf *imgpixbuf = NULL;
 284         LayoutWindow *lw = NULL;
 285         gint with_hist = 0;
 286         gchar *ct;
 287         gint w, h;
 288         GHashTable *vars;
 289
 290         vars = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_free);
 291
 292         name = image_get_name(imd);
 293         if (name)
 294                 {
 295                 name_escaped = g_markup_escape_text(name, -1);
 296                 }
 297         else
 298                 {
 299                 name_escaped = NULL;
 300                 }
 301
 302         cd = image_get_collection(imd, &info);
 303         if (cd)
 304                 {
 305                 gchar *buf;
 306
 307                 t = g_list_length(cd->list);
 308                 n = g_list_index(cd->list, info) + 1;
 309                 buf = g_markup_escape_text((cd->name) ? cd->name : _("Untitled"), -1);
 310                 ct = g_strdup_printf("<i>%s</i>\n", buf);
 311                 g_free(buf);
 312                 }
 313         else
 314                 {
 315                 lw = layout_find_by_image(imd);
 316                 if (lw)
 317                         {
 318                         if (lw->slideshow)
 319                                 {
 320                                 n = g_list_length(lw->slideshow->list_done);
 321                                 t = n + g_list_length(lw->slideshow->list);
 322                                 if (n == 0) n = t;
 323                                 }
 324                         else
 325                                 {
 326                                 t = layout_list_count(lw, NULL);
 327                                 n = layout_list_get_index(lw, image_get_path(lw->image)) + 1;
 328                                 }
 329                         }
 330                 else if (view_window_find_image(imd, &n, &t))
 331                         {
 332                         n++;
 333                         }
 334                 else
 335                         {
 336                         t = 1;
 337                         n = 1;
 338                         }
 339
 340                 if (n < 1) n = 1;
 341                 if (t < 1) t = 1;
 342
 343                 ct = g_strdup("");
 344                 }
 345
 346         size = text_from_size_abrev(imd->size);
 347         if (!imd->unknown)
 348                 {
 349                 if (imd->delay_flip &&
 350                     imd->il && imd->il->pixbuf &&
 351                     image_get_pixbuf(imd) != imd->il->pixbuf)
 352                         {
 353                         w = gdk_pixbuf_get_width(imd->il->pixbuf);
 354                         h = gdk_pixbuf_get_height(imd->il->pixbuf);
 355                         imgpixbuf = imd->il->pixbuf;
 356                         }
 357                 else
 358                         {
 359                         image_get_image_size(imd, &w, &h);
 360                         imgpixbuf = (PIXBUF_RENDERER(imd->pr))->pixbuf;
 361                         }
 362
 363                 if (imgpixbuf && imd->histogram_enabled && imd->histogram
 364                               && (!imd->il || imd->il->done))
 365                         with_hist=1;
 366
 367                 g_hash_table_insert(vars, "width", g_strdup_printf("%d", w));
 368                 g_hash_table_insert(vars, "height", g_strdup_printf("%d", h));
 369                 g_hash_table_insert(vars, "res", g_strdup_printf("%d × %d", w, h));
 370                 }
 371
 372         g_hash_table_insert(vars, "collection", g_strdup(ct));
 373         g_hash_table_insert(vars, "number", g_strdup_printf("%d", n));
 374         g_hash_table_insert(vars, "total", g_strdup_printf("%d", t));
 375         g_hash_table_insert(vars, "name", g_strdup(name_escaped));
 376         g_hash_table_insert(vars, "date", g_strdup(text_from_time(imd->mtime)));
 377         g_hash_table_insert(vars, "size", g_strdup(size));
 378         g_hash_table_insert(vars, "zoom", image_zoom_get_as_text(imd));
 379
 380         if (!name_escaped)
 381                 {
 382                 text = g_strdup_printf(_("Untitled"));
 383                 }
 384         else
 385                 {
 386                 text = image_osd_mkinfo(options->image_overlay.common.template_string, imd, vars);
 387                 }
 388
 389         g_free(size);
 390         g_free(ct);
 391         g_free(name_escaped);
 392         g_hash_table_destroy(vars);
 393
 394         {
 395         FileData *fd = image_get_fd(imd);
 396
 397         if (fd) /* fd may be null after file deletion */
 398                 {
 399                 gint active_marks = 0;
 400                 gint mark;
 401                 gchar *text2;
 402
 403                 for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 404                         {
 405                         active_marks += fd->marks[mark];
 406                         }
 407
 408                 if (active_marks > 0)
 409                         {
 410                         GString *buf = g_string_sized_new(FILEDATA_MARKS_SIZE * 2);
 411
 412                         for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 413                                 {
 414                                 g_string_append_printf(buf, fd->marks[mark] ? " <span background='#FF00FF'>%c</span>" : " %c", '1' + mark);
 415                                 }
 416
 417                         if (*text)
 418                                 text2 = g_strdup_printf("%s\n%s", text, buf->str);
 419                         else
 420                                 text2 = g_strdup(buf->str);
 421                         g_string_free(buf, TRUE);
 422                         g_free(text);
 423                         text = text2;
 424                         }
 425
 426                 if (with_hist)
 427                         {
 428                         gchar *escaped_histogram_label = g_markup_escape_text(histogram_label(imd->histogram), -1);
 429                         if (*text)
 430                                 text2 = g_strdup_printf("%s\n%s", text, escaped_histogram_label);
 431                         else
 432                                 text2 = g_strdup(escaped_histogram_label);
 433                         g_free(escaped_histogram_label);
 434                         g_free(text);
 435                         text = text2;
 436                         }
 437                 }
 438         }
 439
 440         layout = gtk_widget_create_pango_layout(imd->pr, NULL);
 441         pango_layout_set_markup(layout, text, -1);
 442         g_free(text);
 443
 444         pango_layout_get_pixel_size(layout, &width, &height);
 445         /* with empty text width is set to 0, but not height) */
 446         if (width == 0)
 447                 height = 0;
 448         else if (height == 0)
 449                 width = 0;
 450         if (width > 0) width += 10;
 451         if (height > 0) height += 10;
 452
 453         if (with_hist)
 454                 {
 455                 histogram_read(imd->histogram, imgpixbuf);
 456                 if (width < 266) width = 266;
 457                 height += HISTOGRAM_HEIGHT + 5;
 458                 }
 459
 460         if (width > 0 && height > 0)
 461                 {
 462                 /* TODO: make osd color configurable --Zas */
 463                 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
 464                 pixbuf_set_rect_fill(pixbuf, 3, 3, width-6, height-6, 240, 240, 240, 210);
 465                 pixbuf_set_rect(pixbuf, 0, 0, width, height, 240, 240, 240, 80, 1, 1, 1, 1);
 466                 pixbuf_set_rect(pixbuf, 1, 1, width-2, height-2, 240, 240, 240, 130, 1, 1, 1, 1);
 467                 pixbuf_set_rect(pixbuf, 2, 2, width-4, height-4, 240, 240, 240, 180, 1, 1, 1, 1);
 468                 pixbuf_pixel_set(pixbuf, 0, 0, 0, 0, 0, 0);
 469                 pixbuf_pixel_set(pixbuf, width - 1, 0, 0, 0, 0, 0);
 470                 pixbuf_pixel_set(pixbuf, 0, height - 1, 0, 0, 0, 0);
 471                 pixbuf_pixel_set(pixbuf, width - 1, height - 1, 0, 0, 0, 0);
 472
 473                 if (with_hist)
 474                         histogram_draw(imd->histogram, pixbuf, 5, height - HISTOGRAM_HEIGHT - 5 , width - 10, HISTOGRAM_HEIGHT);
 475
 476                 pixbuf_draw_layout(pixbuf, layout, imd->pr, 5, 5, 0, 0, 0, 255);
 477         }
 478
 479         g_object_unref(G_OBJECT(layout));
 480
 481         return pixbuf;
 482 }
 483
 484 static GdkPixbuf *image_osd_icon_pixbuf(ImageOSDFlag flag)
 485 {
 486         static GdkPixbuf **icons = NULL;
 487         GdkPixbuf *icon = NULL;
 488
 489         if (!icons) icons = g_new0(GdkPixbuf *, IMAGE_OSD_COUNT);
 490         if (icons[flag]) return icons[flag];
 491
 492         if (osd_icons[flag].key)
 493                 {
 494                 icon = pixbuf_inline(osd_icons[flag].key);
 495                 }
 496
 497         if (!icon)
 498                 {
 499                 icon = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 24, 24);
 500                 pixbuf_set_rect_fill(icon, 1, 1, 22, 22, 255, 255, 255, 200);
 501                 pixbuf_set_rect(icon, 0, 0, 24, 24, 0, 0, 0, 128, 1, 1, 1, 1);
 502                 switch (flag)
 503                         {
 504                         case IMAGE_OSD_ROTATE_AUTO:
 505                                 pixbuf_set_rect(icon, 3, 8, 11, 12,
 506                                                 0, 0, 0, 255,
 507                                                 3, 0, 3, 0);
 508                                 pixbuf_draw_triangle(icon, 14, 3, 6, 12,
 509                                                      20, 9, 14, 15, 14, 3,
 510                                                      0, 0, 0, 255);
 511                                 break;
 512                         case IMAGE_OSD_ROTATE_USER:
 513                                 break;
 514                         case IMAGE_OSD_COLOR:
 515                                 pixbuf_set_rect_fill(icon, 3, 3, 18, 6, 200, 0, 0, 255);
 516                                 pixbuf_set_rect_fill(icon, 3, 9, 18, 6, 0, 200, 0, 255);
 517                                 pixbuf_set_rect_fill(icon, 3, 15, 18, 6, 0, 0, 200, 255);
 518                                 break;
 519                         case IMAGE_OSD_FIRST:
 520                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 3, 0);
 521                                 pixbuf_draw_triangle(icon, 6, 5, 12, 6,
 522                                                      12, 5, 18, 11, 6, 11,
 523                                                      0, 0, 0, 255);
 524                                 break;
 525                         case IMAGE_OSD_LAST:
 526                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 0, 3);
 527                                 pixbuf_draw_triangle(icon, 6, 12, 12, 6,
 528                                                      12, 18, 6, 12, 18, 12,
 529                                                      0, 0, 0, 255);
 530                                 break;
 531                         case IMAGE_OSD_ICON:
 532                                 pixbuf_set_rect_fill(icon, 11, 3, 3, 12, 0, 0, 0, 255);
 533                                 pixbuf_set_rect_fill(icon, 11, 17, 3, 3, 0, 0, 0, 255);
 534                                 break;
 535                         default:
 536                                 break;
 537                         }
 538                 }
 539
 540         icons[flag] = icon;
 541
 542         return icon;
 543 }
 544
 545 static void image_osd_icon_show(OverlayStateData *osd, ImageOSDFlag flag)
 546 {
 547         GdkPixbuf *pixbuf;
 548
 549         if (osd->icon_id[flag]) return;
 550
 551         pixbuf = image_osd_icon_pixbuf(flag);
 552         if (!pixbuf) return;
 553
 554         osd->icon_id[flag] = image_overlay_add(osd->imd, pixbuf,
 555                                                osd_icons[flag].x, osd_icons[flag].y,
 556                                                TRUE, FALSE);
 557 }
 558
 559 static void image_osd_icon_hide(OverlayStateData *osd, ImageOSDFlag flag)
 560 {
 561         if (osd->icon_id[flag])
 562                 {
 563                 image_overlay_remove(osd->imd, osd->icon_id[flag]);
 564                 osd->icon_id[flag] = 0;
 565                 }
 566 }
 567
 568 static gint image_osd_update_cb(gpointer data)
 569 {
 570         OverlayStateData *osd = data;
 571
 572         osd->imd->overlay_show_zoom = FALSE;
 573
 574         if (osd->show & OSD_SHOW_INFO)
 575                 {
 576                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 577                         {
 578                         GdkPixbuf *pixbuf;
 579
 580                         pixbuf = image_osd_info_render(osd->imd);
 581                         if (pixbuf)
 582                                 {
 583                                 if (osd->ovl_info == 0)
 584                                         {
 585                                         osd->ovl_info = image_overlay_add(osd->imd, pixbuf,
 586                                                                           OSD_INFO_X, OSD_INFO_Y, TRUE, FALSE);
 587                                         }
 588                                 else
 589                                         {
 590                                         image_overlay_set(osd->imd, osd->ovl_info, pixbuf, OSD_INFO_X, OSD_INFO_Y);
 591                                         }
 592                                 g_object_unref(pixbuf);
 593                                 }
 594                         else if (osd->ovl_info)
 595                                 {
 596                                 image_overlay_remove(osd->imd, osd->ovl_info);
 597                                 osd->ovl_info = 0;
 598                                 }
 599                         }
 600                 }
 601         else
 602                 {
 603                 if (osd->ovl_info)
 604                         {
 605                         image_overlay_remove(osd->imd, osd->ovl_info);
 606                         osd->ovl_info = 0;
 607                         }
 608                 }
 609
 610         if (osd->show & OSD_SHOW_STATUS)
 611                 {
 612                 gint i;
 613
 614                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 615                         {
 616                         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 617                                 {
 618                                 if (osd_icons[i].reset) osd->icon_time[i] = 0;
 619                                 }
 620                         }
 621
 622                 if (osd->changed_states & IMAGE_STATE_COLOR_ADJ)
 623                         {
 624                         osd->icon_time[IMAGE_OSD_COLOR] = IMAGE_OSD_DEFAULT_DURATION + 1;
 625                         image_osd_timer_schedule(osd);
 626                         }
 627
 628                 if (osd->changed_states & IMAGE_STATE_ROTATE_AUTO)
 629                         {
 630                         gint n = 0;
 631
 632                         if (osd->imd->state & IMAGE_STATE_ROTATE_AUTO)
 633                                 {
 634                                 n = 1;
 635                                 if (!osd->imd->cm) n += IMAGE_OSD_DEFAULT_DURATION;
 636                                 }
 637
 638                         osd->icon_time[IMAGE_OSD_ROTATE_AUTO] = n;
 639                         image_osd_timer_schedule(osd);
 640                         }
 641
 642                 for (i = 0; i < IMAGE_OSD_COUNT; i++)
 643                         {
 644                         if (osd->icon_time[i] > 0)
 645                                 {
 646                                 image_osd_icon_show(osd, i);
 647                                 }
 648                         else
 649                                 {
 650                                 image_osd_icon_hide(osd, i);
 651                                 }
 652                         }
 653                 }
 654         else
 655                 {
 656                 gint i;
 657
 658                 for (i = 0; i < IMAGE_OSD_COUNT; i++)
 659                         {
 660                         image_osd_icon_hide(osd, i);
 661                         }
 662                 }
 663
 664         if (osd->imd->il && osd->imd->il->done)
 665                 osd->changed_states = IMAGE_STATE_NONE;
 666         osd->idle_id = -1;
 667         return FALSE;
 668 }
 669
 670 static void image_osd_update_schedule(OverlayStateData *osd, gint force)
 671 {
 672         if (force) osd->changed_states |= IMAGE_STATE_IMAGE;
 673
 674         if (osd->idle_id == -1)
 675                 {
 676                 osd->idle_id = g_idle_add_full(G_PRIORITY_HIGH, image_osd_update_cb, osd, NULL);
 677                 }
 678 }
 679
 680 void image_osd_update(ImageWindow *imd)
 681 {
 682         OverlayStateData *osd = image_get_osd_data(imd);
 683
 684         if (!osd) return;
 685
 686         image_osd_update_schedule(osd, TRUE);
 687 }
 688
 689 static gint image_osd_timer_cb(gpointer data)
 690 {
 691         OverlayStateData *osd = data;
 692         gint done = TRUE;
 693         gint changed = FALSE;
 694         gint i;
 695
 696         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 697                 {
 698                 if (osd->icon_time[i] > 1)
 699                         {
 700                         osd->icon_time[i]--;
 701                         if (osd->icon_time[i] < 2)
 702                                 {
 703                                 osd->icon_time[i] = 0;
 704                                 changed = TRUE;
 705                                 }
 706                         else
 707                                 {
 708                                 done = FALSE;
 709                                 }
 710                         }
 711                 }
 712
 713         if (changed) image_osd_update_schedule(osd, FALSE);
 714
 715         if (done)
 716                 {
 717                 osd->timer_id = -1;
 718                 return FALSE;
 719                 }
 720
 721         return TRUE;
 722 }
 723
 724 static void image_osd_timer_schedule(OverlayStateData *osd)
 725 {
 726         if (osd->timer_id == -1)
 727                 {
 728                 osd->timer_id = g_timeout_add(100, image_osd_timer_cb, osd);
 729                 }
 730 }
 731
 732 static void image_osd_state_cb(ImageWindow *imd, ImageState state, gpointer data)
 733 {
 734         OverlayStateData *osd = data;
 735
 736         osd->changed_states |= state;
 737         image_osd_update_schedule(osd, FALSE);
 738 }
 739
 740 static void image_osd_free(OverlayStateData *osd)
 741 {
 742         if (!osd) return;
 743
 744         if (osd->idle_id != -1) g_source_remove(osd->idle_id);
 745         if (osd->timer_id != -1) g_source_remove(osd->timer_id);
 746
 747         if (osd->imd)
 748                 {
 749                 gint i;
 750
 751                 image_set_osd_data(osd->imd, NULL);
 752                 g_signal_handler_disconnect(osd->imd->pr, osd->destroy_id);
 753
 754                 image_set_state_func(osd->imd, NULL, NULL);
 755                 image_overlay_remove(osd->imd, osd->ovl_info);
 756
 757                 for (i = 0; i < IMAGE_OSD_COUNT; i++)
 758                         {
 759                         image_osd_icon_hide(osd, i);
 760                         }
 761                 }
 762
 763         g_free(osd);
 764 }
 765
 766 static void image_osd_remove(ImageWindow *imd)
 767 {
 768         OverlayStateData *osd = image_get_osd_data(imd);
 769
 770         g_assert(osd);
 771         image_osd_free(osd);
 772 }
 773
 774 static void image_osd_destroy_cb(GtkWidget *widget, gpointer data)
 775 {
 776         OverlayStateData *osd = data;
 777
 778         osd->imd = NULL;
 779         image_osd_free(osd);
 780 }
 781
 782 static void image_osd_enable(ImageWindow *imd, OsdShowFlags show)
 783 {
 784         OverlayStateData *osd = image_get_osd_data(imd);
 785
 786         if (!osd)
 787                 {
 788                 osd = g_new0(OverlayStateData, 1);
 789                 osd->imd = imd;
 790                 osd->idle_id = -1;
 791                 osd->timer_id = -1;
 792
 793                 osd->destroy_id = g_signal_connect(G_OBJECT(imd->pr), "destroy",
 794                                                    G_CALLBACK(image_osd_destroy_cb), osd);
 795                 image_set_osd_data(imd, osd);
 796
 797                 image_set_state_func(osd->imd, image_osd_state_cb, osd);
 798                 }
 799
 800         if (show != osd->show)
 801                 image_osd_update_schedule(osd, TRUE);
 802
 803         osd->show = show;
 804 }
 805
 806 void image_osd_set(ImageWindow *imd, OsdShowFlags show)
 807 {
 808         if (!imd) return;
 809
 810         if (show == OSD_SHOW_NOTHING)
 811                 {
 812                 image_osd_remove(imd);
 813                 return;
 814                 }
 815
 816         image_osd_enable(imd, show);
 817 }
 818
 819 gint image_osd_get(ImageWindow *imd, OsdShowFlags *show)
 820 {
 821         OverlayStateData *osd = image_get_osd_data(imd);
 822
 823         if (!osd) return FALSE;
 824
 825         if (show) *show = osd->show;
 826
 827         return TRUE;
 828 }
 829
 830 /* duration:
 831     0 = hide
 832     1 = show
 833    2+ = show for duration tenths of a second
 834    -1 = use default duration
 835  */
 836 void image_osd_icon(ImageWindow *imd, ImageOSDFlag flag, gint duration)
 837 {
 838         OverlayStateData *osd = image_get_osd_data(imd);
 839
 840         if (!osd) return;
 841
 842         if (flag < IMAGE_OSD_NONE || flag >= IMAGE_OSD_COUNT) return;
 843         if (duration < 0) duration = IMAGE_OSD_DEFAULT_DURATION;
 844         if (duration > 1) duration += 1;
 845
 846         osd->icon_time[flag] = duration;
 847
 848         image_osd_update_schedule(osd, FALSE);
 849         image_osd_timer_schedule(osd);
 850 }