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