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