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 "bar_info.h"
  17 #include "collect.h"
  18 #include "exif.h"
  19 #include "filedata.h"
  20 #include "histogram.h"
  21 #include "image.h"
  22 #include "img-view.h"
  23 #include "layout.h"
  24 #include "pixbuf-renderer.h"
  25 #include "pixbuf_util.h"
  26 #include "ui_fileops.h"
  27
  28 /*
  29  *----------------------------------------------------------------------------
  30  * image overlay
  31  *----------------------------------------------------------------------------
  32  */
  33
  34
  35 typedef struct _OverlayStateData OverlayStateData;
  36 struct _OverlayStateData {
  37         ImageWindow *imd;
  38         ImageState changed_states;
  39
  40         Histogram *histogram;
  41
  42         OsdShowFlags show;
  43
  44         gint ovl_info;
  45
  46         gint icon_time[IMAGE_OSD_COUNT];
  47         gint icon_id[IMAGE_OSD_COUNT];
  48
  49         gint idle_id;
  50         gint timer_id;
  51         gulong destroy_id;
  52 };
  53
  54
  55 typedef struct _OSDIcon OSDIcon;
  56 struct _OSDIcon {
  57         gint reset;     /* reset on new image */
  58         gint x;         /* x, y offset */
  59         gint y;
  60         gchar *key;     /* inline pixbuf */
  61 };
  62
  63 static OSDIcon osd_icons[] = {
  64         {  TRUE,   0,   0, NULL },                      /* none */
  65         {  TRUE, -10, -10, NULL },                      /* auto rotated */
  66         {  TRUE, -10, -10, NULL },                      /* user rotated */
  67         {  TRUE, -40, -10, NULL },                      /* color embedded */
  68         {  TRUE, -70, -10, NULL },                      /* first image */
  69         {  TRUE, -70, -10, NULL },                      /* last image */
  70         { FALSE, -70, -10, NULL },                      /* osd enabled */
  71         { FALSE, 0, 0, NULL }
  72 };
  73
  74 #define OSD_DATA "overlay-data"
  75
  76 #define OSD_INFO_X 10
  77 #define OSD_INFO_Y -10
  78
  79 #define IMAGE_OSD_DEFAULT_DURATION 30
  80
  81 #define HISTOGRAM_HEIGHT 140
  82 #define HISTOGRAM_WIDTH  256
  83
  84 static void image_osd_timer_schedule(OverlayStateData *osd);
  85
  86 void set_image_overlay_template_string(gchar **template_string, const gchar *value)
  87 {
  88         g_assert(template_string);
  89
  90         g_free(*template_string);
  91         *template_string = g_strdup(value);
  92 }
  93
  94
  95 void set_default_image_overlay_template_string(gchar **template_string)
  96 {
  97         set_image_overlay_template_string(template_string, DEFAULT_OVERLAY_INFO);
  98 }
  99
 100 static OverlayStateData *image_get_osd_data(ImageWindow *imd)
 101 {
 102         OverlayStateData *osd;
 103
 104         if (!imd) return NULL;
 105
 106         g_assert(imd->pr);
 107
 108         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 109         return osd;
 110 }
 111
 112 static void image_set_osd_data(ImageWindow *imd, OverlayStateData *osd)
 113 {
 114         g_assert(imd);
 115         g_assert(imd->pr);
 116         g_object_set_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA", osd);
 117 }
 118
 119 /*
 120  *----------------------------------------------------------------------------
 121  * image histogram
 122  *----------------------------------------------------------------------------
 123  */
 124
 125
 126 void image_osd_histogram_chan_toggle(ImageWindow *imd)
 127 {
 128         OverlayStateData *osd = image_get_osd_data(imd);
 129
 130         if (!osd || !osd->histogram) return;
 131
 132         histogram_set_channel(osd->histogram, (histogram_get_channel(osd->histogram) +1)%HCHAN_COUNT);
 133         image_osd_update(imd);
 134 }
 135
 136 void image_osd_histogram_log_toggle(ImageWindow *imd)
 137 {
 138         OverlayStateData *osd = image_get_osd_data(imd);
 139
 140         if (!osd || !osd->histogram) return;
 141
 142         histogram_set_mode(osd->histogram, !histogram_get_mode(osd->histogram));
 143         image_osd_update(imd);
 144 }
 145
 146 void image_osd_toggle(ImageWindow *imd)
 147 {
 148         OverlayStateData *osd;
 149
 150         if (!imd) return;
 151
 152         osd = image_get_osd_data(imd);
 153         if (!osd)
 154                 {
 155                 image_osd_set(imd, OSD_SHOW_INFO | OSD_SHOW_STATUS);
 156                 return;
 157                 }
 158
 159         if (osd->show != OSD_SHOW_NOTHING)
 160                 {
 161                 if (osd->show & OSD_SHOW_HISTOGRAM)
 162                         {
 163                         image_osd_set(imd, OSD_SHOW_NOTHING);
 164                         }
 165                 else
 166                         {
 167                         image_osd_set(imd, osd->show | OSD_SHOW_HISTOGRAM);
 168                         }
 169                 }
 170 }
 171
 172 static gchar *keywords_to_string(FileData *fd)
 173 {
 174         GList *keywords;
 175         GString *kwstr = NULL;
 176         gchar *ret = NULL;
 177
 178         g_assert(fd);
 179
 180         if (comment_read(fd, &keywords, NULL))
 181                 {
 182                 GList *work = keywords;
 183
 184                 while (work)
 185                         {
 186                         gchar *kw = work->data;
 187                         work = work->next;
 188
 189                         if (!kw) continue;
 190                         if (!kwstr)
 191                                 kwstr = g_string_new("");
 192                         else
 193                                 g_string_append(kwstr, ", ");
 194
 195                         g_string_append(kwstr, kw);
 196                         }
 197                 }
 198
 199         if (kwstr)
 200                 {
 201                 ret = kwstr->str;
 202                 g_string_free(kwstr, FALSE);
 203                 }
 204
 205         return ret;
 206 }
 207
 208 static gchar *image_osd_mkinfo(const gchar *str, ImageWindow *imd, GHashTable *vars)
 209 {
 210         gchar delim = '%', imp = '|', sep[] = " - ";
 211         gchar *start, *end;
 212         gint pos, prev;
 213         gint last;
 214         gchar *name, *data;
 215         GString *new;
 216         gchar *ret;
 217         ExifData *exif;
 218
 219         if (!str || !*str) return g_strdup("");
 220
 221         new = g_string_new(str);
 222
 223         exif = exif_read_fd(imd->image_fd);
 224         prev = 0;
 225         last = FALSE;
 226
 227         while (TRUE)
 228                 {
 229                 gint limit = 0;
 230                 gchar *trunc = NULL;
 231                 gchar *limpos = NULL;
 232                 gchar *extra = NULL;
 233                 gchar *extrapos = NULL;
 234                 gchar *p;
 235
 236                 start = strchr(new->str, delim);
 237                 if (!start)
 238                         break;
 239                 end = strchr(start+1, delim);
 240                 if (!end)
 241                         break;
 242
 243                 /* Search for optionnal modifiers
 244                  * %name:99:extra% -> name = "name", limit=99, extra = "extra"
 245                  */
 246                 for (p = start + 1; p < end; p++)
 247                         {
 248                         if (p[0] == ':')
 249                                 {
 250                                 if (g_ascii_isdigit(p[1]) && !limpos)
 251                                         {
 252                                         limpos = p + 1;
 253                                         if (!trunc) trunc = p;
 254                                         }
 255                                 else
 256                                         {
 257                                         extrapos = p + 1;
 258                                         if (!trunc) trunc = p;
 259                                         break;
 260                                         }
 261                                 }
 262                         }
 263
 264                 if (limpos)
 265                         limit = atoi(limpos);
 266
 267                 if (extrapos)
 268                         extra = g_strndup(extrapos, end - extrapos);
 269
 270                 name = g_strndup(start+1, (trunc ? trunc : end)-start-1);
 271                 pos = start - new->str;
 272                 data = NULL;
 273
 274                 if (strcmp(name, "keywords") == 0)
 275                         {
 276                         data = keywords_to_string(imd->image_fd);
 277                         }
 278                 else if (strcmp(name, "comment") == 0)
 279                         {
 280                         comment_read(imd->image_fd, NULL, &data);
 281                         }
 282                 else
 283                         {
 284                         data = g_strdup(g_hash_table_lookup(vars, name));
 285                         if (data && strcmp(name, "zoom") == 0) imd->overlay_show_zoom = TRUE;
 286                         if (!data && exif)
 287                                 data = exif_get_data_as_text(exif, name);
 288                         }
 289                 if (data && *data && limit > 0 && strlen(data) > limit + 3)
 290                         {
 291                         gchar *new_data = g_strdup_printf("%-*.*s...", limit, limit, data);
 292                         g_free(data);
 293                         data = new_data;
 294                         }
 295
 296                 if (data)
 297                         {
 298                         /* Since we use pango markup to display, we need to escape here */
 299                         gchar *escaped = g_markup_escape_text(data, -1);
 300                         g_free(data);
 301                         data = escaped;
 302                         }
 303
 304                 if (extra)
 305                         {
 306                         if (data && *data)
 307                                 {
 308                                 /* Display data between left and right parts of extra string
 309                                  * the data is expressed by a '*' character.
 310                                  * If no "*" is present, the extra string is just appended to data string.
 311                                  * Pango mark up is accepted in left and right parts.
 312                                  * Any \n is replaced by a newline
 313                                  * Examples:
 314                                  * "<i>*</i>\n" -> data is displayed in italics ended with a newline
 315                                  * "\n"         -> ended with newline
 316                                  * "ISO *"      -> prefix data with "ISO " (ie. "ISO 100")
 317                                  * "Collection <b>*</b>\n" -> display data in bold prefixed by "Collection " and a newline is appended
 318                                  *
 319                                  * FIXME: using background / foreground colors lead to weird results.
 320                                  */
 321                                 gchar *new_data;
 322                                 gchar *left = NULL;
 323                                 gchar *right = extra;
 324                                 gchar *p;
 325                                 gint len = strlen(extra);
 326
 327                                 /* Search and replace "\n" by a newline character */
 328                                 for (p = extra; *p; p++, len--)
 329                                         if (p[0] == '\\' && p[1] == 'n')
 330                                                 {
 331                                                 memmove(p+1, p+2, --len);
 332                                                 *p = '\n';
 333                                                 }
 334
 335                                 /* Search for left and right parts */
 336                                 for (p = extra; *p; p++)
 337                                         if (*p == '*')
 338                                                 {
 339                                                 *p = '\0';
 340                                                 p++;
 341                                                 right = p;
 342                                                 left = extra;
 343                                                 break;
 344                                                 }
 345
 346                                 new_data = g_strdup_printf("%s%s%s", left ? left : "", data, right);
 347                                 g_free(data);
 348                                 data = new_data;
 349                                 }
 350                         g_free(extra);
 351                         }
 352
 353                 g_string_erase(new, pos, end-start+1);
 354                 if (data)
 355                         g_string_insert(new, pos, data);
 356
 357                 if (pos-prev == 2 && new->str[pos-1] == imp)
 358                         {
 359                         g_string_erase(new, --pos, 1);
 360                         if (last && data)
 361                                 {
 362                                 g_string_insert(new, pos, sep);
 363                                 pos += strlen(sep);
 364                                 }
 365                         }
 366
 367                 prev = data ? pos+strlen(data)-1 : pos-1;
 368                 last = data ? TRUE : last;
 369                 g_free(name);
 370                 g_free(data);
 371                 }
 372
 373         exif_free(exif);
 374         /* search and destroy empty lines */
 375         end = new->str;
 376         while ((start = strchr(end, '\n')))
 377                 {
 378                 end = start;
 379                 while (*++(end) == '\n')
 380                         ;
 381                 g_string_erase(new, start-new->str, end-start-1);
 382                 }
 383
 384         g_strchomp(new->str);
 385
 386         ret = new->str;
 387         g_string_free(new, FALSE);
 388
 389         return ret;
 390 }
 391
 392 static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
 393 {
 394         GdkPixbuf *pixbuf = NULL;
 395         gint width, height;
 396         PangoLayout *layout;
 397         const gchar *name;
 398         gchar *name_escaped;
 399         gchar *text;
 400         gchar *size;
 401         gint n, t;
 402         CollectionData *cd;
 403         CollectInfo *info;
 404         GdkPixbuf *imgpixbuf = NULL;
 405         LayoutWindow *lw = NULL;
 406         gint with_hist = 0;
 407         gchar *ct;
 408         gint w, h;
 409         GHashTable *vars;
 410         ImageWindow *imd = osd->imd;
 411         FileData *fd = image_get_fd(imd);
 412
 413         if (!fd) return NULL;
 414
 415         vars = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_free);
 416
 417         name = image_get_name(imd);
 418         if (name)
 419                 {
 420                 name_escaped = g_markup_escape_text(name, -1);
 421                 }
 422         else
 423                 {
 424                 name_escaped = NULL;
 425                 }
 426
 427         cd = image_get_collection(imd, &info);
 428         if (cd)
 429                 {
 430                 gchar *collection_name;
 431
 432                 t = g_list_length(cd->list);
 433                 n = g_list_index(cd->list, info) + 1;
 434                 if (cd->name)
 435                         {
 436                         if (file_extension_match(cd->name, ".gqv"))
 437                                 collection_name = remove_extension_from_path(cd->name);
 438                         else
 439                                 collection_name = g_strdup(cd->name);
 440                         }
 441                 else
 442                         {
 443                         collection_name = g_strdup(_("Untitled"));
 444                         }
 445
 446                 ct = g_markup_escape_text(collection_name, -1);
 447                 g_free(collection_name);
 448                 }
 449         else
 450                 {
 451                 lw = layout_find_by_image(imd);
 452                 if (lw)
 453                         {
 454                         if (lw->slideshow)
 455                                 {
 456                                 n = g_list_length(lw->slideshow->list_done);
 457                                 t = n + g_list_length(lw->slideshow->list);
 458                                 if (n == 0) n = t;
 459                                 }
 460                         else
 461                                 {
 462                                 t = layout_list_count(lw, NULL);
 463                                 n = layout_list_get_index(lw, image_get_path(lw->image)) + 1;
 464                                 }
 465                         }
 466                 else if (view_window_find_image(imd, &n, &t))
 467                         {
 468                         n++;
 469                         }
 470                 else
 471                         {
 472                         t = 1;
 473                         n = 1;
 474                         }
 475
 476                 if (n < 1) n = 1;
 477                 if (t < 1) t = 1;
 478
 479                 ct = g_strdup("");
 480                 }
 481
 482         size = text_from_size_abrev(imd->size);
 483         if (!imd->unknown)
 484                 {
 485                 if (imd->delay_flip &&
 486                     imd->il && imd->il->pixbuf &&
 487                     image_get_pixbuf(imd) != imd->il->pixbuf)
 488                         {
 489                         w = gdk_pixbuf_get_width(imd->il->pixbuf);
 490                         h = gdk_pixbuf_get_height(imd->il->pixbuf);
 491                         imgpixbuf = imd->il->pixbuf;
 492                         }
 493                 else
 494                         {
 495                         image_get_image_size(imd, &w, &h);
 496                         imgpixbuf = (PIXBUF_RENDERER(imd->pr))->pixbuf;
 497                         }
 498
 499                 if (imgpixbuf && (osd->show & OSD_SHOW_HISTOGRAM) && osd->histogram
 500                               && (!imd->il || imd->il->done))
 501                         with_hist=1;
 502
 503                 g_hash_table_insert(vars, "width", g_strdup_printf("%d", w));
 504                 g_hash_table_insert(vars, "height", g_strdup_printf("%d", h));
 505                 g_hash_table_insert(vars, "res", g_strdup_printf("%d × %d", w, h));
 506                 }
 507
 508         g_hash_table_insert(vars, "collection", g_strdup(ct));
 509         g_hash_table_insert(vars, "number", g_strdup_printf("%d", n));
 510         g_hash_table_insert(vars, "total", g_strdup_printf("%d", t));
 511         g_hash_table_insert(vars, "name", g_strdup(name_escaped));
 512         g_hash_table_insert(vars, "date", g_strdup(text_from_time(imd->mtime)));
 513         g_hash_table_insert(vars, "size", g_strdup(size));
 514         g_hash_table_insert(vars, "zoom", image_zoom_get_as_text(imd));
 515
 516         if (!name_escaped)
 517                 {
 518                 text = g_strdup_printf(_("Untitled"));
 519                 }
 520         else
 521                 {
 522                 text = image_osd_mkinfo(options->image_overlay.common.template_string, imd, vars);
 523                 }
 524
 525         g_free(size);
 526         g_free(ct);
 527         g_free(name_escaped);
 528         g_hash_table_destroy(vars);
 529
 530         {
 531                 gint active_marks = 0;
 532                 gint mark;
 533                 gchar *text2;
 534
 535                 for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 536                         {
 537                         active_marks += fd->marks[mark];
 538                         }
 539
 540                 if (active_marks > 0)
 541                         {
 542                         GString *buf = g_string_sized_new(FILEDATA_MARKS_SIZE * 2);
 543
 544                         for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 545                                 {
 546                                 g_string_append_printf(buf, fd->marks[mark] ? " <span background='#FF00FF'>%c</span>" : " %c", '1' + mark);
 547                                 }
 548
 549                         if (*text)
 550                                 text2 = g_strdup_printf("%s\n%s", text, buf->str);
 551                         else
 552                                 text2 = g_strdup(buf->str);
 553                         g_string_free(buf, TRUE);
 554                         g_free(text);
 555                         text = text2;
 556                         }
 557
 558                 if (with_hist)
 559                         {
 560                         gchar *escaped_histogram_label = g_markup_escape_text(histogram_label(osd->histogram), -1);
 561                         if (*text)
 562                                 text2 = g_strdup_printf("%s\n%s", text, escaped_histogram_label);
 563                         else
 564                                 text2 = g_strdup(escaped_histogram_label);
 565                         g_free(escaped_histogram_label);
 566                         g_free(text);
 567                         text = text2;
 568                         }
 569         }
 570
 571         layout = gtk_widget_create_pango_layout(imd->pr, NULL);
 572         pango_layout_set_markup(layout, text, -1);
 573         g_free(text);
 574
 575         pango_layout_get_pixel_size(layout, &width, &height);
 576         /* with empty text width is set to 0, but not height) */
 577         if (width == 0)
 578                 height = 0;
 579         else if (height == 0)
 580                 width = 0;
 581         if (width > 0) width += 10;
 582         if (height > 0) height += 10;
 583
 584         if (with_hist)
 585                 {
 586                 histogram_read(osd->histogram, imgpixbuf);
 587                 if (width < HISTOGRAM_WIDTH + 10) width = HISTOGRAM_WIDTH + 10;
 588                 height += HISTOGRAM_HEIGHT + 5;
 589                 }
 590
 591         if (width > 0 && height > 0)
 592                 {
 593                 /* TODO: make osd color configurable --Zas */
 594                 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
 595                 pixbuf_set_rect_fill(pixbuf, 3, 3, width-6, height-6, 240, 240, 240, 210);
 596                 pixbuf_set_rect(pixbuf, 0, 0, width, height, 240, 240, 240, 80, 1, 1, 1, 1);
 597                 pixbuf_set_rect(pixbuf, 1, 1, width-2, height-2, 240, 240, 240, 130, 1, 1, 1, 1);
 598                 pixbuf_set_rect(pixbuf, 2, 2, width-4, height-4, 240, 240, 240, 180, 1, 1, 1, 1);
 599                 pixbuf_pixel_set(pixbuf, 0, 0, 0, 0, 0, 0);
 600                 pixbuf_pixel_set(pixbuf, width - 1, 0, 0, 0, 0, 0);
 601                 pixbuf_pixel_set(pixbuf, 0, height - 1, 0, 0, 0, 0);
 602                 pixbuf_pixel_set(pixbuf, width - 1, height - 1, 0, 0, 0, 0);
 603
 604                 if (with_hist)
 605                         {
 606                         gint x = 5;
 607                         gint y = height - HISTOGRAM_HEIGHT - 5;
 608                         gint w = width - 10;
 609                         gint xoffset = 0;
 610                         gint subdiv = 5;
 611                         gint c = 160;
 612                         gint alpha = 250;
 613                         gint i;
 614
 615                         for (i = 0; i < subdiv; i++)
 616                                 {
 617                                 gint d = (i > 0 ? 0 : 1);
 618                                 gint div_width = d + w / subdiv;
 619
 620                                 pixbuf_set_rect(pixbuf, x + xoffset, y, div_width, HISTOGRAM_HEIGHT, c, c, c, alpha, d, 1, 1, 1);
 621                                 xoffset += div_width;
 622                                 }
 623
 624                         histogram_draw(osd->histogram, pixbuf, x, y, w, HISTOGRAM_HEIGHT);
 625                         }
 626                 pixbuf_draw_layout(pixbuf, layout, imd->pr, 5, 5, 0, 0, 0, 255);
 627         }
 628
 629         g_object_unref(G_OBJECT(layout));
 630
 631         return pixbuf;
 632 }
 633
 634 static GdkPixbuf *image_osd_icon_pixbuf(ImageOSDFlag flag)
 635 {
 636         static GdkPixbuf **icons = NULL;
 637         GdkPixbuf *icon = NULL;
 638
 639         if (!icons) icons = g_new0(GdkPixbuf *, IMAGE_OSD_COUNT);
 640         if (icons[flag]) return icons[flag];
 641
 642         if (osd_icons[flag].key)
 643                 {
 644                 icon = pixbuf_inline(osd_icons[flag].key);
 645                 }
 646
 647         if (!icon)
 648                 {
 649                 icon = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 24, 24);
 650                 pixbuf_set_rect_fill(icon, 1, 1, 22, 22, 255, 255, 255, 200);
 651                 pixbuf_set_rect(icon, 0, 0, 24, 24, 0, 0, 0, 128, 1, 1, 1, 1);
 652                 switch (flag)
 653                         {
 654                         case IMAGE_OSD_ROTATE_AUTO:
 655                                 pixbuf_set_rect(icon, 3, 8, 11, 12,
 656                                                 0, 0, 0, 255,
 657                                                 3, 0, 3, 0);
 658                                 pixbuf_draw_triangle(icon, 14, 3, 6, 12,
 659                                                      20, 9, 14, 15, 14, 3,
 660                                                      0, 0, 0, 255);
 661                                 break;
 662                         case IMAGE_OSD_ROTATE_USER:
 663                                 break;
 664                         case IMAGE_OSD_COLOR:
 665                                 pixbuf_set_rect_fill(icon, 3, 3, 18, 6, 200, 0, 0, 255);
 666                                 pixbuf_set_rect_fill(icon, 3, 9, 18, 6, 0, 200, 0, 255);
 667                                 pixbuf_set_rect_fill(icon, 3, 15, 18, 6, 0, 0, 200, 255);
 668                                 break;
 669                         case IMAGE_OSD_FIRST:
 670                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 3, 0);
 671                                 pixbuf_draw_triangle(icon, 6, 5, 12, 6,
 672                                                      12, 5, 18, 11, 6, 11,
 673                                                      0, 0, 0, 255);
 674                                 break;
 675                         case IMAGE_OSD_LAST:
 676                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 0, 3);
 677                                 pixbuf_draw_triangle(icon, 6, 12, 12, 6,
 678                                                      12, 18, 6, 12, 18, 12,
 679                                                      0, 0, 0, 255);
 680                                 break;
 681                         case IMAGE_OSD_ICON:
 682                                 pixbuf_set_rect_fill(icon, 11, 3, 3, 12, 0, 0, 0, 255);
 683                                 pixbuf_set_rect_fill(icon, 11, 17, 3, 3, 0, 0, 0, 255);
 684                                 break;
 685                         default:
 686                                 break;
 687                         }
 688                 }
 689
 690         icons[flag] = icon;
 691
 692         return icon;
 693 }
 694
 695 static void image_osd_icon_show(OverlayStateData *osd, ImageOSDFlag flag)
 696 {
 697         GdkPixbuf *pixbuf;
 698
 699         if (osd->icon_id[flag]) return;
 700
 701         pixbuf = image_osd_icon_pixbuf(flag);
 702         if (!pixbuf) return;
 703
 704         osd->icon_id[flag] = image_overlay_add(osd->imd, pixbuf,
 705                                                osd_icons[flag].x, osd_icons[flag].y,
 706                                                TRUE, FALSE);
 707 }
 708
 709 static void image_osd_icon_hide(OverlayStateData *osd, ImageOSDFlag flag)
 710 {
 711         if (osd->icon_id[flag])
 712                 {
 713                 image_overlay_remove(osd->imd, osd->icon_id[flag]);
 714                 osd->icon_id[flag] = 0;
 715                 }
 716 }
 717
 718 static gint image_osd_update_cb(gpointer data)
 719 {
 720         OverlayStateData *osd = data;
 721
 722         osd->imd->overlay_show_zoom = FALSE;
 723
 724         if (osd->show & OSD_SHOW_INFO)
 725                 {
 726                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 727                         {
 728                         GdkPixbuf *pixbuf;
 729
 730                         pixbuf = image_osd_info_render(osd);
 731                         if (pixbuf)
 732                                 {
 733                                 if (osd->ovl_info == 0)
 734                                         {
 735                                         osd->ovl_info = image_overlay_add(osd->imd, pixbuf,
 736                                                                           OSD_INFO_X, OSD_INFO_Y, TRUE, FALSE);
 737                                         }
 738                                 else
 739                                         {
 740                                         image_overlay_set(osd->imd, osd->ovl_info, pixbuf, OSD_INFO_X, OSD_INFO_Y);
 741                                         }
 742                                 g_object_unref(pixbuf);
 743                                 }
 744                         else if (osd->ovl_info)
 745                                 {
 746                                 image_overlay_remove(osd->imd, osd->ovl_info);
 747                                 osd->ovl_info = 0;
 748                                 }
 749                         }
 750                 }
 751         else
 752                 {
 753                 if (osd->ovl_info)
 754                         {
 755                         image_overlay_remove(osd->imd, osd->ovl_info);
 756                         osd->ovl_info = 0;
 757                         }
 758                 }
 759
 760         if (osd->show & OSD_SHOW_STATUS)
 761                 {
 762                 gint i;
 763
 764                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 765                         {
 766                         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 767                                 {
 768                                 if (osd_icons[i].reset) osd->icon_time[i] = 0;
 769                                 }
 770                         }
 771
 772                 if (osd->changed_states & IMAGE_STATE_COLOR_ADJ)
 773                         {
 774                         osd->icon_time[IMAGE_OSD_COLOR] = IMAGE_OSD_DEFAULT_DURATION + 1;
 775                         image_osd_timer_schedule(osd);
 776                         }
 777
 778                 if (osd->changed_states & IMAGE_STATE_ROTATE_AUTO)
 779                         {
 780                         gint n = 0;
 781
 782                         if (osd->imd->state & IMAGE_STATE_ROTATE_AUTO)
 783                                 {
 784                                 n = 1;
 785                                 if (!osd->imd->cm) n += IMAGE_OSD_DEFAULT_DURATION;
 786                                 }
 787
 788                         osd->icon_time[IMAGE_OSD_ROTATE_AUTO] = n;
 789                         image_osd_timer_schedule(osd);
 790                         }
 791
 792                 for (i = 0; i < IMAGE_OSD_COUNT; i++)
 793                         {
 794                         if (osd->icon_time[i] > 0)
 795                                 {
 796                                 image_osd_icon_show(osd, i);
 797                                 }
 798                         else
 799                                 {
 800                                 image_osd_icon_hide(osd, i);
 801                                 }
 802                         }
 803                 }
 804         else
 805                 {
 806                 gint i;
 807
 808                 for (i = 0; i < IMAGE_OSD_COUNT; i++)
 809                         {
 810                         image_osd_icon_hide(osd, i);
 811                         }
 812                 }
 813
 814         if (osd->imd->il && osd->imd->il->done)
 815                 osd->changed_states = IMAGE_STATE_NONE;
 816         osd->idle_id = -1;
 817         return FALSE;
 818 }
 819
 820 static void image_osd_update_schedule(OverlayStateData *osd, gint force)
 821 {
 822         if (force) osd->changed_states |= IMAGE_STATE_IMAGE;
 823
 824         if (osd->idle_id == -1)
 825                 {
 826                 osd->idle_id = g_idle_add_full(G_PRIORITY_HIGH, image_osd_update_cb, osd, NULL);
 827                 }
 828 }
 829
 830 void image_osd_update(ImageWindow *imd)
 831 {
 832         OverlayStateData *osd = image_get_osd_data(imd);
 833
 834         if (!osd) return;
 835
 836         image_osd_update_schedule(osd, TRUE);
 837 }
 838
 839 static gint image_osd_timer_cb(gpointer data)
 840 {
 841         OverlayStateData *osd = data;
 842         gint done = TRUE;
 843         gint changed = FALSE;
 844         gint i;
 845
 846         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 847                 {
 848                 if (osd->icon_time[i] > 1)
 849                         {
 850                         osd->icon_time[i]--;
 851                         if (osd->icon_time[i] < 2)
 852                                 {
 853                                 osd->icon_time[i] = 0;
 854                                 changed = TRUE;
 855                                 }
 856                         else
 857                                 {
 858                                 done = FALSE;
 859                                 }
 860                         }
 861                 }
 862
 863         if (changed) image_osd_update_schedule(osd, FALSE);
 864
 865         if (done)
 866                 {
 867                 osd->timer_id = -1;
 868                 return FALSE;
 869                 }
 870
 871         return TRUE;
 872 }
 873
 874 static void image_osd_timer_schedule(OverlayStateData *osd)
 875 {
 876         if (osd->timer_id == -1)
 877                 {
 878                 osd->timer_id = g_timeout_add(100, image_osd_timer_cb, osd);
 879                 }
 880 }
 881
 882 static void image_osd_state_cb(ImageWindow *imd, ImageState state, gpointer data)
 883 {
 884         OverlayStateData *osd = data;
 885
 886         osd->changed_states |= state;
 887         image_osd_update_schedule(osd, FALSE);
 888 }
 889
 890 static void image_osd_free(OverlayStateData *osd)
 891 {
 892         if (!osd) return;
 893
 894         if (osd->idle_id != -1) g_source_remove(osd->idle_id);
 895         if (osd->timer_id != -1) g_source_remove(osd->timer_id);
 896
 897         if (osd->imd)
 898                 {
 899                 gint i;
 900
 901                 image_set_osd_data(osd->imd, NULL);
 902                 g_signal_handler_disconnect(osd->imd->pr, osd->destroy_id);
 903
 904                 image_set_state_func(osd->imd, NULL, NULL);
 905                 image_overlay_remove(osd->imd, osd->ovl_info);
 906
 907                 for (i = 0; i < IMAGE_OSD_COUNT; i++)
 908                         {
 909                         image_osd_icon_hide(osd, i);
 910                         }
 911                 }
 912
 913         if (osd->histogram) histogram_free(osd->histogram);
 914
 915         g_free(osd);
 916 }
 917
 918 static void image_osd_remove(ImageWindow *imd)
 919 {
 920         OverlayStateData *osd = image_get_osd_data(imd);
 921
 922         if (osd) image_osd_free(osd);
 923 }
 924
 925 static void image_osd_destroy_cb(GtkWidget *widget, gpointer data)
 926 {
 927         OverlayStateData *osd = data;
 928
 929         osd->imd = NULL;
 930         image_osd_free(osd);
 931 }
 932
 933 static void image_osd_enable(ImageWindow *imd, OsdShowFlags show)
 934 {
 935         OverlayStateData *osd = image_get_osd_data(imd);
 936
 937         if (!osd)
 938                 {
 939                 osd = g_new0(OverlayStateData, 1);
 940                 osd->imd = imd;
 941                 osd->idle_id = -1;
 942                 osd->timer_id = -1;
 943                 osd->show = OSD_SHOW_NOTHING;
 944                 osd->histogram = NULL;
 945
 946                 osd->destroy_id = g_signal_connect(G_OBJECT(imd->pr), "destroy",
 947                                                    G_CALLBACK(image_osd_destroy_cb), osd);
 948                 image_set_osd_data(imd, osd);
 949
 950                 image_set_state_func(osd->imd, image_osd_state_cb, osd);
 951                 }
 952
 953         if (show & OSD_SHOW_HISTOGRAM)
 954                 osd->histogram = histogram_new();
 955         else if (osd->histogram)
 956                 {
 957                 histogram_free(osd->histogram);
 958                 osd->histogram = NULL;
 959                 }
 960
 961         if (show & OSD_SHOW_STATUS)
 962                 image_osd_icon(imd, IMAGE_OSD_ICON, -1);
 963
 964         if (show != osd->show)
 965                 image_osd_update_schedule(osd, TRUE);
 966
 967         osd->show = show;
 968 }
 969
 970 void image_osd_set(ImageWindow *imd, OsdShowFlags show)
 971 {
 972         if (!imd) return;
 973
 974         if (show == OSD_SHOW_NOTHING)
 975                 {
 976                 image_osd_remove(imd);
 977                 return;
 978                 }
 979
 980         image_osd_enable(imd, show);
 981 }
 982
 983 OsdShowFlags image_osd_get(ImageWindow *imd)
 984 {
 985         OverlayStateData *osd = image_get_osd_data(imd);
 986
 987         return osd ? osd->show : OSD_SHOW_NOTHING;
 988 }
 989
 990 /* duration:
 991     0 = hide
 992     1 = show
 993    2+ = show for duration tenths of a second
 994    -1 = use default duration
 995  */
 996 void image_osd_icon(ImageWindow *imd, ImageOSDFlag flag, gint duration)
 997 {
 998         OverlayStateData *osd = image_get_osd_data(imd);
 999
1000         if (!osd) return;
1001
1002         if (flag < IMAGE_OSD_NONE || flag >= IMAGE_OSD_COUNT) return;
1003         if (duration < 0) duration = IMAGE_OSD_DEFAULT_DURATION;
1004         if (duration > 1) duration += 1;
1005
1006         osd->icon_time[flag] = duration;
1007
1008         image_osd_update_schedule(osd, FALSE);
1009         image_osd_timer_schedule(osd);
1010 }