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