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 void set_default_image_overlay_template_string(ConfOptions *options)
  80 {
  81         if (options->image_overlay.common.template_string) g_free(options->image_overlay.common.template_string);
  82         options->image_overlay.common.template_string = g_strdup(DEFAULT_OVERLAY_INFO);
  83 }
  84
  85 /*
  86  *----------------------------------------------------------------------------
  87  * image histogram
  88  *----------------------------------------------------------------------------
  89  */
  90
  91
  92 #define HIST_PREPARE(imd, lw)                          \
  93        LayoutWindow *lw = NULL;                        \
  94        if (imd)                                        \
  95                lw = layout_find_by_image(imd);
  96
  97 void image_osd_histogram_onoff_toggle(ImageWindow *imd, gint x)
  98 {
  99         HIST_PREPARE(imd, lw)
 100         if (lw)
 101                 {
 102                 lw->histogram_enabled = !!(x);
 103                 if (lw->histogram_enabled && !lw->histogram)
 104                         lw->histogram = histogram_new();
 105                 }
 106 }
 107
 108 gint image_osd_histogram_onoff_status(ImageWindow *imd)
 109 {
 110        HIST_PREPARE(imd, lw)
 111        return lw ?  lw->histogram_enabled : FALSE;
 112 }
 113
 114 void image_osd_histogram_chan_toggle(ImageWindow *imd)
 115 {
 116        HIST_PREPARE(imd, lw)
 117        if (lw && lw->histogram)
 118                histogram_set_channel(lw->histogram, (histogram_get_channel(lw->histogram) +1)%HCHAN_COUNT);
 119 }
 120
 121 void image_osd_histogram_log_toggle(ImageWindow *imd)
 122 {
 123        HIST_PREPARE(imd,lw)
 124        if (lw && lw->histogram)
 125                histogram_set_mode(lw->histogram, !histogram_get_mode(lw->histogram));
 126 }
 127
 128
 129
 130 static void image_osd_timer_schedule(OverlayStateData *osd);
 131
 132 static gchar *image_osd_mkinfo(const gchar *str, ImageWindow *imd, GHashTable *vars)
 133 {
 134         gchar delim = '%', imp = '|', sep[] = " - ";
 135         gchar *start, *end;
 136         gint pos, prev;
 137         gint last;
 138         gchar *name, *data;
 139         GString *new;
 140         gchar *ret;
 141         ExifData *exif;
 142
 143         if (!str || !*str) return g_strdup("");
 144
 145         new = g_string_new(str);
 146
 147         exif = exif_read_fd(imd->image_fd);
 148         prev = 0;
 149         last = FALSE;
 150
 151         while (TRUE)
 152                 {
 153                 gint was_digit = 0;
 154                 gint limit = 0;
 155                 gchar *trunc = NULL;
 156                 gchar *p;
 157
 158                 start = strchr(new->str, delim);
 159                 if (!start)
 160                         break;
 161                 end = strchr(start+1, delim);
 162                 if (!end)
 163                         break;
 164
 165                 for (p = end; p > start; p--)
 166                         {
 167                         if (*p == ':' && was_digit)
 168                                 {
 169                                 trunc = p;
 170                                 break;
 171                                 }
 172                         was_digit = g_ascii_isdigit(*p);
 173                         }
 174
 175                 if (trunc) limit = atoi(trunc+1);
 176
 177                 name = g_strndup(start+1, ((limit > 0) ? trunc : end)-start-1);
 178
 179                 pos = start-new->str;
 180                 data = g_strdup(g_hash_table_lookup(vars, name));
 181                 if (data && strcmp(name, "zoom") == 0) imd->overlay_show_zoom = TRUE;
 182                 if (!data && exif)
 183                         data = exif_get_data_as_text(exif, name);
 184                 if (data && *data && limit > 0 && strlen(data) > limit + 3)
 185                         {
 186                         gchar *new_data = g_strdup_printf("%-*.*s...", limit, limit, data);
 187                         g_free(data);
 188                         data = new_data;
 189                         }
 190
 191                 g_string_erase(new, pos, end-start+1);
 192                 if (data)
 193                         g_string_insert(new, pos, data);
 194                 if (pos-prev == 2 && new->str[pos-1] == imp)
 195                         {
 196                         g_string_erase(new, --pos, 1);
 197                         if (last && data)
 198                                 {
 199                                 g_string_insert(new, pos, sep);
 200                                 pos += strlen(sep);
 201                                 }
 202                         }
 203
 204                 prev = data ? pos+strlen(data)-1 : pos-1;
 205                 last = data ? TRUE : last;
 206                 g_free(name);
 207                 g_free(data);
 208                 }
 209
 210         /* search and destroy empty lines */
 211         end = new->str;
 212         while ((start = strchr(end, '\n')))
 213                 {
 214                 end = start;
 215                 while (*++(end) == '\n')
 216                         ;
 217                 g_string_erase(new, start-new->str, end-start-1);
 218                 }
 219
 220         g_strchomp(new->str);
 221
 222         ret = new->str;
 223         g_string_free(new, FALSE);
 224
 225         return ret;
 226 }
 227
 228 static GdkPixbuf *image_osd_info_render(ImageWindow *imd)
 229 {
 230         GdkPixbuf *pixbuf = NULL;
 231         gint width, height;
 232         PangoLayout *layout;
 233         const gchar *name;
 234         gchar *name_escaped;
 235         gchar *text;
 236         gchar *size;
 237         gint n, t;
 238         CollectionData *cd;
 239         CollectInfo *info;
 240         GdkPixbuf *imgpixbuf = NULL;
 241         LayoutWindow *lw = NULL;
 242         gint with_hist = 0;
 243         gchar *ct;
 244         gint w, h;
 245         GHashTable *vars;
 246
 247         vars = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_free);
 248
 249         name = image_get_name(imd);
 250         if (name)
 251                 {
 252                 name_escaped = g_markup_escape_text(name, -1);
 253                 }
 254         else
 255                 {
 256                 name_escaped = NULL;
 257                 }
 258
 259         cd = image_get_collection(imd, &info);
 260         if (cd)
 261                 {
 262                 gchar *buf;
 263
 264                 t = g_list_length(cd->list);
 265                 n = g_list_index(cd->list, info) + 1;
 266                 buf = g_markup_escape_text((cd->name) ? cd->name : _("Untitled"), -1);
 267                 ct = g_strdup_printf("<i>%s</i>\n", buf);
 268                 g_free(buf);
 269                 }
 270         else
 271                 {
 272                 lw = layout_find_by_image(imd);
 273                 if (lw)
 274                         {
 275                         if (lw->slideshow)
 276                                 {
 277                                 n = g_list_length(lw->slideshow->list_done);
 278                                 t = n + g_list_length(lw->slideshow->list);
 279                                 if (n == 0) n = t;
 280                                 }
 281                         else
 282                                 {
 283                                 t = layout_list_count(lw, NULL);
 284                                 n = layout_list_get_index(lw, image_get_path(lw->image)) + 1;
 285                                 }
 286                         }
 287                 else if (view_window_find_image(imd, &n, &t))
 288                         {
 289                         n++;
 290                         }
 291                 else
 292                         {
 293                         t = 1;
 294                         n = 1;
 295                         }
 296
 297                 if (n < 1) n = 1;
 298                 if (t < 1) t = 1;
 299
 300                 ct = g_strdup("");
 301                 }
 302
 303         size = text_from_size_abrev(imd->size);
 304         if (!imd->unknown)
 305                 {
 306                 if (imd->delay_flip &&
 307                     imd->il && imd->il->pixbuf &&
 308                     image_get_pixbuf(imd) != imd->il->pixbuf)
 309                         {
 310                         w = gdk_pixbuf_get_width(imd->il->pixbuf);
 311                         h = gdk_pixbuf_get_height(imd->il->pixbuf);
 312                         imgpixbuf = imd->il->pixbuf;
 313                         }
 314                 else
 315                         {
 316                         pixbuf_renderer_get_image_size(PIXBUF_RENDERER(imd->pr), &w, &h);
 317                         imgpixbuf = (PIXBUF_RENDERER(imd->pr))->pixbuf;
 318                         }
 319                 if (!lw)
 320                         lw = layout_find_by_image(imd);
 321
 322                 if (imgpixbuf && lw && lw->histogram && lw->histogram_enabled
 323                               && (!imd->il || imd->il->done))
 324                         with_hist=1;
 325
 326                 g_hash_table_insert(vars, "width", g_strdup_printf("%d", w));
 327                 g_hash_table_insert(vars, "height", g_strdup_printf("%d", h));
 328                 g_hash_table_insert(vars, "res", g_strdup_printf("%d × %d", w, h));
 329                 }
 330
 331         g_hash_table_insert(vars, "collection", g_strdup(ct));
 332         g_hash_table_insert(vars, "number", g_strdup_printf("%d", n));
 333         g_hash_table_insert(vars, "total", g_strdup_printf("%d", t));
 334         g_hash_table_insert(vars, "name", g_strdup(name_escaped));
 335         g_hash_table_insert(vars, "date", g_strdup(text_from_time(imd->mtime)));
 336         g_hash_table_insert(vars, "size", g_strdup(size));
 337         g_hash_table_insert(vars, "zoom", image_zoom_get_as_text(imd));
 338
 339         if (!name_escaped)
 340                 {
 341                 text = g_strdup_printf(_("Untitled"));
 342                 }
 343         else
 344                 {
 345                 text = image_osd_mkinfo(options->image_overlay.common.template_string, imd, vars);
 346                 }
 347
 348         g_free(size);
 349         g_free(ct);
 350         g_free(name_escaped);
 351         g_hash_table_destroy(vars);
 352
 353         {
 354         FileData *fd = image_get_fd(imd);
 355
 356         if (fd) /* fd may be null after file deletion */
 357                 {
 358                 gint active_marks = 0;
 359                 gint mark;
 360                 gchar *text2;
 361
 362                 for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 363                         {
 364                         active_marks += fd->marks[mark];
 365                         }
 366
 367
 368                 if (active_marks > 0)
 369                         {
 370                         GString *buf = g_string_sized_new(FILEDATA_MARKS_SIZE * 2);
 371
 372                         for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 373                                 {
 374                                 g_string_append_printf(buf, fd->marks[mark] ? " <span background='#FF00FF'>%c</span>" : " %c", '1' + mark);
 375                                 }
 376
 377                         if (*text)
 378                                 text2 = g_strdup_printf("%s\n%s", text, buf->str);
 379                         else
 380                                 text2 = g_strdup(buf->str);
 381                         g_string_free(buf, TRUE);
 382                         g_free(text);
 383                         text = text2;
 384                         }
 385
 386                 if (with_hist)
 387                         {
 388                         if (*text)
 389                                 text2 = g_strdup_printf("%s\n%s", text, histogram_label(lw->histogram));
 390                         else
 391                                 text2 = g_strdup(histogram_label(lw->histogram));
 392                         g_free(text);
 393                         text = text2;
 394                         }
 395                 }
 396         }
 397
 398         layout = gtk_widget_create_pango_layout(imd->pr, NULL);
 399         pango_layout_set_markup(layout, text, -1);
 400         g_free(text);
 401
 402         pango_layout_get_pixel_size(layout, &width, &height);
 403         /* with empty text width is set to 0, but not height) */
 404         if (width == 0)
 405                 height = 0;
 406         else if (height == 0)
 407                 width = 0;
 408         if (width > 0) width += 10;
 409         if (height > 0) height += 10;
 410
 411         if (with_hist)
 412                 {
 413                 histogram_read(lw->histogram, imgpixbuf);
 414                 if (width < 266) width = 266;
 415                 height += HISTOGRAM_HEIGHT + 5;
 416                 }
 417
 418         if (width > 0 && height > 0)
 419                 {
 420                 /* TODO: make osd color configurable --Zas */
 421                 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
 422                 pixbuf_set_rect_fill(pixbuf, 3, 3, width-6, height-6, 240, 240, 240, 210);
 423                 pixbuf_set_rect(pixbuf, 0, 0, width, height, 240, 240, 240, 80, 1, 1, 1, 1);
 424                 pixbuf_set_rect(pixbuf, 1, 1, width-2, height-2, 240, 240, 240, 130, 1, 1, 1, 1);
 425                 pixbuf_set_rect(pixbuf, 2, 2, width-4, height-4, 240, 240, 240, 180, 1, 1, 1, 1);
 426                 pixbuf_pixel_set(pixbuf, 0, 0, 0, 0, 0, 0);
 427                 pixbuf_pixel_set(pixbuf, width - 1, 0, 0, 0, 0, 0);
 428                 pixbuf_pixel_set(pixbuf, 0, height - 1, 0, 0, 0, 0);
 429                 pixbuf_pixel_set(pixbuf, width - 1, height - 1, 0, 0, 0, 0);
 430
 431                 if (with_hist)
 432                         histogram_draw(lw->histogram, pixbuf, 5, height - HISTOGRAM_HEIGHT - 5 , width - 10, HISTOGRAM_HEIGHT);
 433
 434                 pixbuf_draw_layout(pixbuf, layout, imd->pr, 5, 5, 0, 0, 0, 255);
 435         }
 436
 437         g_object_unref(G_OBJECT(layout));
 438
 439         return pixbuf;
 440 }
 441
 442 static GdkPixbuf *image_osd_icon_pixbuf(ImageOSDFlag flag)
 443 {
 444         static GdkPixbuf **icons = NULL;
 445         GdkPixbuf *icon = NULL;
 446
 447         if (!icons) icons = g_new0(GdkPixbuf *, IMAGE_OSD_COUNT);
 448         if (icons[flag]) return icons[flag];
 449
 450         if (osd_icons[flag].key)
 451                 {
 452                 icon = pixbuf_inline(osd_icons[flag].key);
 453                 }
 454
 455         if (!icon)
 456                 {
 457                 icon = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 24, 24);
 458                 pixbuf_set_rect_fill(icon, 1, 1, 22, 22, 255, 255, 255, 200);
 459                 pixbuf_set_rect(icon, 0, 0, 24, 24, 0, 0, 0, 128, 1, 1, 1, 1);
 460                 switch (flag)
 461                         {
 462                         case IMAGE_OSD_ROTATE_AUTO:
 463                                 pixbuf_set_rect(icon, 3, 8, 11, 12,
 464                                                 0, 0, 0, 255,
 465                                                 3, 0, 3, 0);
 466                                 pixbuf_draw_triangle(icon, 14, 3, 6, 12,
 467                                                      20, 9, 14, 15, 14, 3,
 468                                                      0, 0, 0, 255);
 469                                 break;
 470                         case IMAGE_OSD_ROTATE_USER:
 471                                 break;
 472                         case IMAGE_OSD_COLOR:
 473                                 pixbuf_set_rect_fill(icon, 3, 3, 18, 6, 200, 0, 0, 255);
 474                                 pixbuf_set_rect_fill(icon, 3, 9, 18, 6, 0, 200, 0, 255);
 475                                 pixbuf_set_rect_fill(icon, 3, 15, 18, 6, 0, 0, 200, 255);
 476                                 break;
 477                         case IMAGE_OSD_FIRST:
 478                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 3, 0);
 479                                 pixbuf_draw_triangle(icon, 6, 5, 12, 6,
 480                                                      12, 5, 18, 11, 6, 11,
 481                                                      0, 0, 0, 255);
 482                                 break;
 483                         case IMAGE_OSD_LAST:
 484                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 0, 3);
 485                                 pixbuf_draw_triangle(icon, 6, 12, 12, 6,
 486                                                      12, 18, 6, 12, 18, 12,
 487                                                      0, 0, 0, 255);
 488                                 break;
 489                         case IMAGE_OSD_ICON:
 490                                 pixbuf_set_rect_fill(icon, 11, 3, 3, 12, 0, 0, 0, 255);
 491                                 pixbuf_set_rect_fill(icon, 11, 17, 3, 3, 0, 0, 0, 255);
 492                                 break;
 493                         default:
 494                                 break;
 495                         }
 496                 }
 497
 498         icons[flag] = icon;
 499
 500         return icon;
 501 }
 502
 503 static void image_osd_icon_show(OverlayStateData *osd, ImageOSDFlag flag)
 504 {
 505         GdkPixbuf *pixbuf;
 506
 507         if (osd->icon_id[flag]) return;
 508
 509         pixbuf = image_osd_icon_pixbuf(flag);
 510         if (!pixbuf) return;
 511
 512         osd->icon_id[flag] = image_overlay_add(osd->imd, pixbuf,
 513                                                osd_icons[flag].x, osd_icons[flag].y,
 514                                                TRUE, FALSE);
 515 }
 516
 517 static void image_osd_icon_hide(OverlayStateData *osd, ImageOSDFlag flag)
 518 {
 519         if (osd->icon_id[flag])
 520                 {
 521                 image_overlay_remove(osd->imd, osd->icon_id[flag]);
 522                 osd->icon_id[flag] = 0;
 523                 }
 524 }
 525
 526 static gint image_osd_update_cb(gpointer data)
 527 {
 528         OverlayStateData *osd = data;
 529
 530         osd->imd->overlay_show_zoom = FALSE;
 531
 532         if (osd->show_info)
 533                 {
 534                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 535                         {
 536                         GdkPixbuf *pixbuf;
 537
 538                         pixbuf = image_osd_info_render(osd->imd);
 539                         if (pixbuf)
 540                                 {
 541                                 if (osd->ovl_info == 0)
 542                                         {
 543                                         osd->ovl_info = image_overlay_add(osd->imd, pixbuf,
 544                                                                           OSD_INFO_X, OSD_INFO_Y, TRUE, FALSE);
 545                                         }
 546                                 else
 547                                         {
 548                                         image_overlay_set(osd->imd, osd->ovl_info, pixbuf, OSD_INFO_X, OSD_INFO_Y);
 549                                         }
 550                                 g_object_unref(pixbuf);
 551                                 }
 552                         else if (osd->ovl_info)
 553                                 {
 554                                 image_overlay_remove(osd->imd, osd->ovl_info);
 555                                 osd->ovl_info = 0;
 556                                 }
 557                         }
 558                 }
 559         else
 560                 {
 561                 if (osd->ovl_info)
 562                         {
 563                         image_overlay_remove(osd->imd, osd->ovl_info);
 564                         osd->ovl_info = 0;
 565                         }
 566                 }
 567
 568         if (osd->show_status)
 569                 {
 570                 gint i;
 571
 572                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 573                         {
 574                         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 575                                 {
 576                                 if (osd_icons[i].reset) osd->icon_time[i] = 0;
 577                                 }
 578                         }
 579
 580                 if (osd->changed_states & IMAGE_STATE_COLOR_ADJ)
 581                         {
 582                         osd->icon_time[IMAGE_OSD_COLOR] = IMAGE_OSD_DEFAULT_DURATION + 1;
 583                         image_osd_timer_schedule(osd);
 584                         }
 585
 586                 if (osd->changed_states & IMAGE_STATE_ROTATE_AUTO)
 587                         {
 588                         gint n = 0;
 589
 590                         if (osd->imd->state & IMAGE_STATE_ROTATE_AUTO)
 591                                 {
 592                                 n = 1;
 593                                 if (!osd->imd->cm) n += IMAGE_OSD_DEFAULT_DURATION;
 594                                 }
 595
 596                         osd->icon_time[IMAGE_OSD_ROTATE_AUTO] = n;
 597                         image_osd_timer_schedule(osd);
 598                         }
 599
 600                 for (i = 0; i < IMAGE_OSD_COUNT; i++)
 601                         {
 602                         if (osd->icon_time[i] > 0)
 603                                 {
 604                                 image_osd_icon_show(osd, i);
 605                                 }
 606                         else
 607                                 {
 608                                 image_osd_icon_hide(osd, i);
 609                                 }
 610                         }
 611                 }
 612         else
 613                 {
 614                 gint i;
 615
 616                 for (i = 0; i < IMAGE_OSD_COUNT; i++)
 617                         {
 618                         image_osd_icon_hide(osd, i);
 619                         }
 620                 }
 621
 622         if (osd->imd->il && osd->imd->il->done)
 623                 osd->changed_states = IMAGE_STATE_NONE;
 624         osd->idle_id = -1;
 625         return FALSE;
 626 }
 627
 628 static void image_osd_update_schedule(OverlayStateData *osd, gint force)
 629 {
 630         if (force) osd->changed_states |= IMAGE_STATE_IMAGE;
 631
 632         if (osd->idle_id == -1)
 633                 {
 634                 osd->idle_id = g_idle_add_full(G_PRIORITY_HIGH, image_osd_update_cb, osd, NULL);
 635                 }
 636 }
 637
 638 void image_osd_update(ImageWindow *imd)
 639 {
 640         OverlayStateData *osd;
 641
 642         if (!imd) return;
 643
 644         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 645         if (!osd) return;
 646
 647         image_osd_update_schedule(osd, TRUE);
 648 }
 649
 650 static gint image_osd_timer_cb(gpointer data)
 651 {
 652         OverlayStateData *osd = data;
 653         gint done = TRUE;
 654         gint changed = FALSE;
 655         gint i;
 656
 657         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 658                 {
 659                 if (osd->icon_time[i] > 1)
 660                         {
 661                         osd->icon_time[i]--;
 662                         if (osd->icon_time[i] < 2)
 663                                 {
 664                                 osd->icon_time[i] = 0;
 665                                 changed = TRUE;
 666                                 }
 667                         else
 668                                 {
 669                                 done = FALSE;
 670                                 }
 671                         }
 672                 }
 673
 674         if (changed) image_osd_update_schedule(osd, FALSE);
 675
 676         if (done)
 677                 {
 678                 osd->timer_id = -1;
 679                 return FALSE;
 680                 }
 681
 682         return TRUE;
 683 }
 684
 685 static void image_osd_timer_schedule(OverlayStateData *osd)
 686 {
 687         if (osd->timer_id == -1)
 688                 {
 689                 osd->timer_id = g_timeout_add(100, image_osd_timer_cb, osd);
 690                 }
 691 }
 692
 693 static void image_osd_state_cb(ImageWindow *imd, ImageState state, gpointer data)
 694 {
 695         OverlayStateData *osd = data;
 696
 697         osd->changed_states |= state;
 698         image_osd_update_schedule(osd, FALSE);
 699 }
 700
 701 static void image_osd_free(OverlayStateData *osd)
 702 {
 703         if (!osd) return;
 704
 705         if (osd->idle_id != -1) g_source_remove(osd->idle_id);
 706         if (osd->timer_id != -1) g_source_remove(osd->timer_id);
 707
 708         if (osd->imd)
 709                 {
 710                 gint i;
 711
 712                 g_object_set_data(G_OBJECT(osd->imd->pr), "IMAGE_OVERLAY_DATA", NULL);
 713                 g_signal_handler_disconnect(osd->imd->pr, osd->destroy_id);
 714
 715                 image_set_state_func(osd->imd, NULL, NULL);
 716                 image_overlay_remove(osd->imd, osd->ovl_info);
 717
 718                 for (i = 0; i < IMAGE_OSD_COUNT; i++)
 719                         {
 720                         image_osd_icon_hide(osd, i);
 721                         }
 722                 }
 723
 724         g_free(osd);
 725 }
 726
 727 static void image_osd_remove(ImageWindow *imd)
 728 {
 729         OverlayStateData *osd;
 730
 731         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 732         image_osd_free(osd);
 733 }
 734
 735 static void image_osd_destroy_cb(GtkWidget *widget, gpointer data)
 736 {
 737         OverlayStateData *osd = data;
 738
 739         osd->imd = NULL;
 740         image_osd_free(osd);
 741 }
 742
 743 static void image_osd_enable(ImageWindow *imd, gint info, gint status)
 744 {
 745         OverlayStateData *osd;
 746
 747         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 748         if (!osd)
 749                 {
 750                 osd = g_new0(OverlayStateData, 1);
 751                 osd->imd = imd;
 752                 osd->idle_id = -1;
 753                 osd->timer_id = -1;
 754
 755                 osd->destroy_id = g_signal_connect(G_OBJECT(imd->pr), "destroy",
 756                                                    G_CALLBACK(image_osd_destroy_cb), osd);
 757                 g_object_set_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA", osd);
 758
 759                 image_set_state_func(osd->imd, image_osd_state_cb, osd);
 760                 }
 761
 762         if (osd->show_info != info ||
 763             osd->show_status != status)
 764                 {
 765                 osd->show_info = info;
 766                 osd->show_status = status;
 767
 768                 image_osd_update_schedule(osd, TRUE);
 769                 }
 770 }
 771
 772 void image_osd_set(ImageWindow *imd, gint info, gint status)
 773 {
 774         if (!imd) return;
 775
 776         if (!info && !status)
 777                 {
 778                 image_osd_remove(imd);
 779                 return;
 780                 }
 781
 782         image_osd_enable(imd, info, status);
 783 }
 784
 785 gint image_osd_get(ImageWindow *imd, gint *info, gint *status)
 786 {
 787         OverlayStateData *osd;
 788
 789         if (!imd) return FALSE;
 790
 791         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 792         if (!osd) return FALSE;
 793
 794         if (info) *info = osd->show_info;
 795         if (status) *status = osd->show_status;
 796
 797         return TRUE;
 798 }
 799
 800 /* duration:
 801     0 = hide
 802     1 = show
 803    2+ = show for duration tenths of a second
 804    -1 = use default duration
 805  */
 806 void image_osd_icon(ImageWindow *imd, ImageOSDFlag flag, gint duration)
 807 {
 808         OverlayStateData *osd;
 809
 810         if (!imd) return;
 811
 812         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 813         if (!osd) return;
 814
 815         if (flag < IMAGE_OSD_NONE || flag >= IMAGE_OSD_COUNT) return;
 816         if (duration < 0) duration = IMAGE_OSD_DEFAULT_DURATION;
 817         if (duration > 1) duration += 1;
 818
 819         osd->icon_time[flag] = duration;
 820
 821         image_osd_update_schedule(osd, FALSE);
 822         image_osd_timer_schedule(osd);
 823 }