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 x;
  47         gint y;
  48
  49         gint icon_time[IMAGE_OSD_COUNT];
  50         gint icon_id[IMAGE_OSD_COUNT];
  51
  52         gint idle_id;
  53         gint timer_id;
  54         gulong destroy_id;
  55 };
  56
  57
  58 typedef struct _OSDIcon OSDIcon;
  59 struct _OSDIcon {
  60         gint reset;     /* reset on new image */
  61         gint x;         /* x, y offset */
  62         gint y;
  63         gchar *key;     /* inline pixbuf */
  64 };
  65
  66 static OSDIcon osd_icons[] = {
  67         {  TRUE,   0,   0, NULL },                      /* none */
  68         {  TRUE, -10, -10, NULL },                      /* auto rotated */
  69         {  TRUE, -10, -10, NULL },                      /* user rotated */
  70         {  TRUE, -40, -10, NULL },                      /* color embedded */
  71         {  TRUE, -70, -10, NULL },                      /* first image */
  72         {  TRUE, -70, -10, NULL },                      /* last image */
  73         { FALSE, -70, -10, NULL },                      /* osd enabled */
  74         { FALSE, 0, 0, NULL }
  75 };
  76
  77 #define OSD_DATA "overlay-data"
  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         guint pos, prev;
 213         gboolean want_separator = FALSE;
 214         gchar *name, *data;
 215         GString *new;
 216         gchar *ret;
 217
 218         if (!str || !*str) return g_strdup("");
 219
 220         new = g_string_new(str);
 221
 222         prev = 0;
 223
 224         while (TRUE)
 225                 {
 226                 guint limit = 0;
 227                 gchar *trunc = NULL;
 228                 gchar *limpos = NULL;
 229                 gchar *extra = NULL;
 230                 gchar *extrapos = NULL;
 231                 gchar *p;
 232
 233                 start = strchr(new->str, delim);
 234                 if (!start)
 235                         break;
 236                 end = strchr(start+1, delim);
 237                 if (!end)
 238                         break;
 239
 240                 /* Search for optionnal modifiers
 241                  * %name:99:extra% -> name = "name", limit=99, extra = "extra"
 242                  */
 243                 for (p = start + 1; p < end; p++)
 244                         {
 245                         if (p[0] == ':')
 246                                 {
 247                                 if (g_ascii_isdigit(p[1]) && !limpos)
 248                                         {
 249                                         limpos = p + 1;
 250                                         if (!trunc) trunc = p;
 251                                         }
 252                                 else
 253                                         {
 254                                         extrapos = p + 1;
 255                                         if (!trunc) trunc = p;
 256                                         break;
 257                                         }
 258                                 }
 259                         }
 260
 261                 if (limpos)
 262                         limit = (guint) atoi(limpos);
 263
 264                 if (extrapos)
 265                         extra = g_strndup(extrapos, end - extrapos);
 266
 267                 name = g_strndup(start+1, (trunc ? trunc : end)-start-1);
 268                 pos = start - new->str;
 269                 data = NULL;
 270
 271                 if (strcmp(name, "keywords") == 0)
 272                         {
 273                         data = keywords_to_string(imd->image_fd);
 274                         }
 275                 else if (strcmp(name, "comment") == 0)
 276                         {
 277                         comment_read(imd->image_fd, NULL, &data);
 278                         }
 279                 else
 280                         {
 281                         /*
 282                            keywords and comment can't be read between exif_read_fd and exif_free_fd calls
 283                            because fd->exif does not count references
 284                            on the other hand, it is OK to call it in the loop because it is cached
 285                         */
 286
 287                         ExifData *exif;
 288                         exif = exif_read_fd(imd->image_fd);
 289
 290                         data = g_strdup(g_hash_table_lookup(vars, name));
 291                         if (data && strcmp(name, "zoom") == 0) imd->overlay_show_zoom = TRUE;
 292                         if (!data && exif)
 293                                 data = exif_get_data_as_text(exif, name);
 294                         exif_free_fd(imd->image_fd, exif);
 295                         }
 296
 297                 if (data && *data && limit > 0 && strlen(data) > limit + 3)
 298                         {
 299                         gchar *new_data = g_strdup_printf("%-*.*s...", limit, limit, data);
 300                         g_free(data);
 301                         data = new_data;
 302                         }
 303
 304                 if (data)
 305                         {
 306                         /* Since we use pango markup to display, we need to escape here */
 307                         gchar *escaped = g_markup_escape_text(data, -1);
 308                         g_free(data);
 309                         data = escaped;
 310                         }
 311
 312                 if (extra)
 313                         {
 314                         if (data && *data)
 315                                 {
 316                                 /* Display data between left and right parts of extra string
 317                                  * the data is expressed by a '*' character. A '*' may be escaped
 318                                  * by a \. You should escape all '*' characters, do not rely on the
 319                                  * current implementation which only replaces the first unescaped '*'.
 320                                  * If no "*" is present, the extra string is just appended to data string.
 321                                  * Pango mark up is accepted in left and right parts.
 322                                  * Any \n is replaced by a newline
 323                                  * Examples:
 324                                  * "<i>*</i>\n" -> data is displayed in italics ended with a newline
 325                                  * "\n"         -> ended with newline
 326                                  * "ISO *"      -> prefix data with "ISO " (ie. "ISO 100")
 327                                  * "\**\*"      -> prefix data with a star, and append a star (ie. "*100*")
 328                                  * "\\*"        -> prefix data with an anti slash (ie "\100")
 329                                  * "Collection <b>*</b>\n" -> display data in bold prefixed by "Collection " and a newline is appended
 330                                  *
 331                                  * FIXME: using background / foreground colors lead to weird results.
 332                                  */
 333                                 gchar *new_data;
 334                                 gchar *left = NULL;
 335                                 gchar *right = extra;
 336                                 gchar *p;
 337                                 guint len = strlen(extra);
 338
 339                                 /* Search for left and right parts and unescape characters */
 340                                 for (p = extra; *p; p++, len--)
 341                                         if (p[0] == '\\')
 342                                                 {
 343                                                 if (p[1] == 'n')
 344                                                         {
 345                                                         memmove(p+1, p+2, --len);
 346                                                         p[0] = '\n';
 347                                                         }
 348                                                 else if (p[1] != '\0')
 349                                                         memmove(p, p+1, len--); // includes \0
 350                                                 }
 351                                         else if (p[0] == '*' && !left)
 352                                                 {
 353                                                 right = p + 1;
 354                                                 left = extra;
 355                                                 }
 356
 357                                 if (left) right[-1] = '\0';
 358
 359                                 new_data = g_strdup_printf("%s%s%s", left ? left : "", data, right);
 360                                 g_free(data);
 361                                 data = new_data;
 362                                 }
 363                         g_free(extra);
 364                         }
 365
 366                 g_string_erase(new, pos, end-start+1);
 367                 if (data && *data)
 368                         {
 369                         if (want_separator)
 370                                 {
 371                                 /* insert separator */
 372                                 g_string_insert(new, pos, sep);
 373                                 pos += strlen(sep);
 374                                 }
 375
 376                         g_string_insert(new, pos, data);
 377                         pos += strlen(data);
 378                 }
 379
 380                 want_separator = FALSE;
 381
 382                 if (pos-prev >= 1 && new->str[pos] == imp)
 383                         {
 384                         /* pipe character is replaced by a separator, delete it
 385                          * and raise a flag if needed */
 386                         g_string_erase(new, pos--, 1);
 387                         want_separator = (data && *data);
 388                         }
 389
 390                 prev = pos - 1;
 391
 392                 g_free(name);
 393                 g_free(data);
 394                 }
 395
 396         /* search and destroy empty lines */
 397         end = new->str;
 398         while ((start = strchr(end, '\n')))
 399                 {
 400                 end = start;
 401                 while (*++(end) == '\n')
 402                         ;
 403                 g_string_erase(new, start-new->str, end-start-1);
 404                 }
 405
 406         g_strchomp(new->str);
 407
 408         ret = new->str;
 409         g_string_free(new, FALSE);
 410
 411         return ret;
 412 }
 413
 414 typedef enum {
 415         OSDT_NONE       = 0,
 416         OSDT_FREE       = 1 << 0,
 417         OSDT_NO_DUP     = 1 << 1
 418 } OsdTemplateFlags;
 419
 420 static void osd_template_insert(GHashTable *vars, gchar *keyword, gchar *value, OsdTemplateFlags flags)
 421 {
 422         if (!value)
 423                 {
 424                 g_hash_table_insert(vars, keyword, g_strdup(""));
 425                 return;
 426                 }
 427
 428         if (flags & OSDT_NO_DUP)
 429                 {
 430                 g_hash_table_insert(vars, keyword, value);
 431                 return;
 432                 }
 433         else
 434                 {
 435                 g_hash_table_insert(vars, keyword, g_strdup(value));
 436                 }
 437
 438         if (flags & OSDT_FREE) g_free((gpointer) value);
 439 }
 440
 441 static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
 442 {
 443         GdkPixbuf *pixbuf = NULL;
 444         gint width, height;
 445         PangoLayout *layout;
 446         const gchar *name;
 447         gchar *text;
 448         GdkPixbuf *imgpixbuf = NULL;
 449         gboolean with_hist;
 450         ImageWindow *imd = osd->imd;
 451         FileData *fd = image_get_fd(imd);
 452
 453         if (!fd) return NULL;
 454
 455         name = image_get_name(imd);
 456         if (name)
 457                 {
 458                 gint n, t;
 459                 CollectionData *cd;
 460                 CollectInfo *info;
 461                 GHashTable *vars;
 462
 463                 vars = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_free);
 464
 465                 cd = image_get_collection(imd, &info);
 466                 if (cd)
 467                         {
 468                         t = g_list_length(cd->list);
 469                         n = g_list_index(cd->list, info) + 1;
 470                         if (cd->name)
 471                                 {
 472                                 if (file_extension_match(cd->name, GQ_COLLECTION_EXT))
 473                                         osd_template_insert(vars, "collection", remove_extension_from_path(cd->name), OSDT_FREE);
 474                                 else
 475                                         osd_template_insert(vars, "collection", cd->name, OSDT_NONE);
 476                                 }
 477                         else
 478                                 {
 479                                 osd_template_insert(vars, "collection", _("Untitled"), OSDT_NONE);
 480                                 }
 481                         }
 482                 else
 483                         {
 484                         LayoutWindow *lw = layout_find_by_image(imd);
 485                         if (lw)
 486                                 {
 487                                 if (lw->slideshow)
 488                                         {
 489                                         n = g_list_length(lw->slideshow->list_done);
 490                                         t = n + g_list_length(lw->slideshow->list);
 491                                         if (n == 0) n = t;
 492                                         }
 493                                 else
 494                                         {
 495                                         t = layout_list_count(lw, NULL);
 496                                         n = layout_list_get_index(lw, image_get_fd(lw->image)) + 1;
 497                                         }
 498                                 }
 499                         else if (view_window_find_image(imd, &n, &t))
 500                                 {
 501                                 n++;
 502                                 }
 503                         else
 504                                 {
 505                                 t = 1;
 506                                 n = 1;
 507                                 }
 508
 509                         if (n < 1) n = 1;
 510                         if (t < 1) t = 1;
 511
 512                         osd_template_insert(vars, "collection", NULL, OSDT_NONE);
 513                         }
 514
 515                 osd_template_insert(vars, "number", g_strdup_printf("%d", n), OSDT_NO_DUP);
 516                 osd_template_insert(vars, "total", g_strdup_printf("%d", t), OSDT_NO_DUP);
 517                 osd_template_insert(vars, "name", (gchar *) name, OSDT_NONE);
 518                 osd_template_insert(vars, "date", imd->image_fd ? ((gchar *) text_from_time(imd->image_fd->date)) : "", OSDT_NONE);
 519                 osd_template_insert(vars, "size", imd->image_fd ? (text_from_size_abrev(imd->image_fd->size)) : g_strdup(""), OSDT_FREE);
 520                 osd_template_insert(vars, "zoom", image_zoom_get_as_text(imd), OSDT_FREE);
 521
 522                 if (!imd->unknown)
 523                         {
 524                         gint w, h;
 525
 526                         if (imd->delay_flip &&
 527                             imd->il && imd->il->pixbuf &&
 528                             image_get_pixbuf(imd) != imd->il->pixbuf)
 529                                 {
 530                                 w = gdk_pixbuf_get_width(imd->il->pixbuf);
 531                                 h = gdk_pixbuf_get_height(imd->il->pixbuf);
 532                                 imgpixbuf = imd->il->pixbuf;
 533                                 }
 534                         else
 535                                 {
 536                                 image_get_image_size(imd, &w, &h);
 537                                 imgpixbuf = (PIXBUF_RENDERER(imd->pr))->pixbuf;
 538                                 }
 539
 540
 541                         osd_template_insert(vars, "width", g_strdup_printf("%d", w), OSDT_NO_DUP);
 542                         osd_template_insert(vars, "height", g_strdup_printf("%d", h), OSDT_NO_DUP);
 543                         osd_template_insert(vars, "res", g_strdup_printf("%d × %d", w, h), OSDT_FREE);
 544                         }
 545                 else
 546                         {
 547                         osd_template_insert(vars, "width", NULL, OSDT_NONE);
 548                         osd_template_insert(vars, "height", NULL, OSDT_NONE);
 549                         osd_template_insert(vars, "res", NULL, OSDT_NONE);
 550                         }
 551
 552                 text = image_osd_mkinfo(options->image_overlay.common.template_string, imd, vars);
 553                 g_hash_table_destroy(vars);
 554
 555         } else {
 556                 /* When does this occur ?? */
 557                 text = g_markup_escape_text(_("Untitled"), -1);
 558         }
 559
 560         with_hist = (imgpixbuf && (osd->show & OSD_SHOW_HISTOGRAM) && osd->histogram && (!imd->il || imd->il->done));
 561
 562         {
 563                 gint active_marks = 0;
 564                 gint mark;
 565                 gchar *text2;
 566
 567                 for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 568                         {
 569                         active_marks += file_data_get_mark(fd, mark);
 570                         }
 571
 572                 if (active_marks > 0)
 573                         {
 574                         GString *buf = g_string_sized_new(FILEDATA_MARKS_SIZE * 2);
 575
 576                         for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 577                                 {
 578                                 g_string_append_printf(buf, file_data_get_mark(fd, mark) ? " <span background='#FF00FF'>%c</span>" : " %c", '1' + mark);
 579                                 }
 580
 581                         if (*text)
 582                                 text2 = g_strdup_printf("%s\n%s", text, buf->str);
 583                         else
 584                                 text2 = g_strdup(buf->str);
 585                         g_string_free(buf, TRUE);
 586                         g_free(text);
 587                         text = text2;
 588                         }
 589
 590                 if (with_hist)
 591                         {
 592                         gchar *escaped_histogram_label = g_markup_escape_text(histogram_label(osd->histogram), -1);
 593                         if (*text)
 594                                 text2 = g_strdup_printf("%s\n%s", text, escaped_histogram_label);
 595                         else
 596                                 text2 = g_strdup(escaped_histogram_label);
 597                         g_free(escaped_histogram_label);
 598                         g_free(text);
 599                         text = text2;
 600                         }
 601         }
 602
 603         layout = gtk_widget_create_pango_layout(imd->pr, NULL);
 604         pango_layout_set_markup(layout, text, -1);
 605         g_free(text);
 606
 607         pango_layout_get_pixel_size(layout, &width, &height);
 608         /* with empty text width is set to 0, but not height) */
 609         if (width == 0)
 610                 height = 0;
 611         else if (height == 0)
 612                 width = 0;
 613         if (width > 0) width += 10;
 614         if (height > 0) height += 10;
 615
 616         if (with_hist)
 617                 {
 618                 histogram_read(osd->histogram, imgpixbuf);
 619                 if (width < HISTOGRAM_WIDTH + 10) width = HISTOGRAM_WIDTH + 10;
 620                 height += HISTOGRAM_HEIGHT + 5;
 621                 }
 622
 623         if (width > 0 && height > 0)
 624                 {
 625                 /* TODO: make osd color configurable --Zas */
 626                 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
 627                 pixbuf_set_rect_fill(pixbuf, 3, 3, width-6, height-6, 240, 240, 240, 210);
 628                 pixbuf_set_rect(pixbuf, 0, 0, width, height, 240, 240, 240, 80, 1, 1, 1, 1);
 629                 pixbuf_set_rect(pixbuf, 1, 1, width-2, height-2, 240, 240, 240, 130, 1, 1, 1, 1);
 630                 pixbuf_set_rect(pixbuf, 2, 2, width-4, height-4, 240, 240, 240, 180, 1, 1, 1, 1);
 631                 pixbuf_pixel_set(pixbuf, 0, 0, 0, 0, 0, 0);
 632                 pixbuf_pixel_set(pixbuf, width - 1, 0, 0, 0, 0, 0);
 633                 pixbuf_pixel_set(pixbuf, 0, height - 1, 0, 0, 0, 0);
 634                 pixbuf_pixel_set(pixbuf, width - 1, height - 1, 0, 0, 0, 0);
 635
 636                 if (with_hist)
 637                         {
 638                         gint x = 5;
 639                         gint y = height - HISTOGRAM_HEIGHT - 5;
 640                         gint w = width - 10;
 641                         float xoffset = 0;
 642                         gint subdiv = 5;
 643                         gint c = 160;
 644                         gint alpha = 250;
 645                         gint i;
 646                         float add = w / (float)subdiv;
 647
 648                         for (i = 0; i < subdiv; i++)
 649                                 {
 650                                 gint d = (i > 0 ? 0 : 1);
 651
 652                                 pixbuf_set_rect(pixbuf, x + xoffset + 0.5, y, add + d + 0.5, HISTOGRAM_HEIGHT, c, c, c, alpha, d, 1, 1, 1);
 653                                 xoffset += add+d;
 654                                 }
 655
 656                         histogram_draw(osd->histogram, pixbuf, x, y, w, HISTOGRAM_HEIGHT);
 657                         }
 658                 pixbuf_draw_layout(pixbuf, layout, imd->pr, 5, 5, 0, 0, 0, 255);
 659         }
 660
 661         g_object_unref(G_OBJECT(layout));
 662
 663         return pixbuf;
 664 }
 665
 666 static GdkPixbuf *image_osd_icon_pixbuf(ImageOSDFlag flag)
 667 {
 668         static GdkPixbuf **icons = NULL;
 669         GdkPixbuf *icon = NULL;
 670
 671         if (!icons) icons = g_new0(GdkPixbuf *, IMAGE_OSD_COUNT);
 672         if (icons[flag]) return icons[flag];
 673
 674         if (osd_icons[flag].key)
 675                 {
 676                 icon = pixbuf_inline(osd_icons[flag].key);
 677                 }
 678
 679         if (!icon)
 680                 {
 681                 icon = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 24, 24);
 682                 pixbuf_set_rect_fill(icon, 1, 1, 22, 22, 255, 255, 255, 200);
 683                 pixbuf_set_rect(icon, 0, 0, 24, 24, 0, 0, 0, 128, 1, 1, 1, 1);
 684                 switch (flag)
 685                         {
 686                         case IMAGE_OSD_ROTATE_AUTO:
 687                                 pixbuf_set_rect(icon, 3, 8, 11, 12,
 688                                                 0, 0, 0, 255,
 689                                                 3, 0, 3, 0);
 690                                 pixbuf_draw_triangle(icon, 14, 3, 6, 12,
 691                                                      20, 9, 14, 15, 14, 3,
 692                                                      0, 0, 0, 255);
 693                                 break;
 694                         case IMAGE_OSD_ROTATE_USER:
 695                                 break;
 696                         case IMAGE_OSD_COLOR:
 697                                 pixbuf_set_rect_fill(icon, 3, 3, 18, 6, 200, 0, 0, 255);
 698                                 pixbuf_set_rect_fill(icon, 3, 9, 18, 6, 0, 200, 0, 255);
 699                                 pixbuf_set_rect_fill(icon, 3, 15, 18, 6, 0, 0, 200, 255);
 700                                 break;
 701                         case IMAGE_OSD_FIRST:
 702                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 3, 0);
 703                                 pixbuf_draw_triangle(icon, 6, 5, 12, 6,
 704                                                      12, 5, 18, 11, 6, 11,
 705                                                      0, 0, 0, 255);
 706                                 break;
 707                         case IMAGE_OSD_LAST:
 708                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 0, 3);
 709                                 pixbuf_draw_triangle(icon, 6, 12, 12, 6,
 710                                                      12, 18, 6, 12, 18, 12,
 711                                                      0, 0, 0, 255);
 712                                 break;
 713                         case IMAGE_OSD_ICON:
 714                                 pixbuf_set_rect_fill(icon, 11, 3, 3, 12, 0, 0, 0, 255);
 715                                 pixbuf_set_rect_fill(icon, 11, 17, 3, 3, 0, 0, 0, 255);
 716                                 break;
 717                         default:
 718                                 break;
 719                         }
 720                 }
 721
 722         icons[flag] = icon;
 723
 724         return icon;
 725 }
 726
 727 static gint image_overlay_add(ImageWindow *imd, GdkPixbuf *pixbuf, gint x, gint y,
 728                               OverlayRendererFlags flags)
 729 {
 730         return pixbuf_renderer_overlay_add((PixbufRenderer *)imd->pr, pixbuf, x, y, flags);
 731 }
 732
 733 static void image_overlay_set(ImageWindow *imd, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 734 {
 735         pixbuf_renderer_overlay_set((PixbufRenderer *)imd->pr, id, pixbuf, x, y);
 736 }
 737
 738 #if 0 /* unused for now */
 739 static gint image_overlay_get(ImageWindow *imd, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
 740 {
 741         return pixbuf_renderer_overlay_get((PixbufRenderer *)imd->pr, id, pixbuf, x, y);
 742 }
 743 #endif
 744
 745 static void image_overlay_remove(ImageWindow *imd, gint id)
 746 {
 747         pixbuf_renderer_overlay_remove((PixbufRenderer *)imd->pr, id);
 748 }
 749
 750 static void image_osd_icon_show(OverlayStateData *osd, ImageOSDFlag flag)
 751 {
 752         GdkPixbuf *pixbuf;
 753
 754         if (osd->icon_id[flag]) return;
 755
 756         pixbuf = image_osd_icon_pixbuf(flag);
 757         if (!pixbuf) return;
 758
 759         osd->icon_id[flag] = image_overlay_add(osd->imd, pixbuf,
 760                                                osd_icons[flag].x, osd_icons[flag].y,
 761                                                OVL_RELATIVE);
 762 }
 763
 764 static void image_osd_icon_hide(OverlayStateData *osd, ImageOSDFlag flag)
 765 {
 766         if (osd->icon_id[flag])
 767                 {
 768                 image_overlay_remove(osd->imd, osd->icon_id[flag]);
 769                 osd->icon_id[flag] = 0;
 770                 }
 771 }
 772
 773 static void image_osd_icons_reset_time(OverlayStateData *osd)
 774 {
 775         gint i;
 776
 777         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 778                 {
 779                 if (osd_icons[i].reset)
 780                         {
 781                         osd->icon_time[i] = 0;
 782                         }
 783                 }
 784 }
 785
 786 static void image_osd_icons_update(OverlayStateData *osd)
 787 {
 788         gint i;
 789
 790         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 791                 {
 792                 if (osd->icon_time[i] > 0)
 793                         {
 794                         image_osd_icon_show(osd, i);
 795                         }
 796                 else
 797                         {
 798                         image_osd_icon_hide(osd, i);
 799                         }
 800                 }
 801 }
 802
 803 static void image_osd_icons_hide(OverlayStateData *osd)
 804 {
 805         gint i;
 806
 807         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 808                 {
 809                 image_osd_icon_hide(osd, i);
 810                 }
 811 }
 812
 813 static void image_osd_info_show(OverlayStateData *osd, GdkPixbuf *pixbuf)
 814 {
 815         if (osd->ovl_info == 0)
 816                 {
 817                 osd->ovl_info = image_overlay_add(osd->imd, pixbuf, osd->x, osd->y, OVL_RELATIVE);
 818                 }
 819         else
 820                 {
 821                 image_overlay_set(osd->imd, osd->ovl_info, pixbuf, osd->x, osd->y);
 822                 }
 823 }
 824
 825 static void image_osd_info_hide(OverlayStateData *osd)
 826 {
 827         if (osd->ovl_info == 0) return;
 828
 829         image_overlay_remove(osd->imd, osd->ovl_info);
 830         osd->ovl_info = 0;
 831 }
 832
 833 static gint image_osd_update_cb(gpointer data)
 834 {
 835         OverlayStateData *osd = data;
 836
 837         osd->imd->overlay_show_zoom = FALSE;
 838
 839         if (osd->show & OSD_SHOW_INFO)
 840                 {
 841                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 842                         {
 843                         GdkPixbuf *pixbuf;
 844
 845                         pixbuf = image_osd_info_render(osd);
 846                         if (pixbuf)
 847                                 {
 848                                 image_osd_info_show(osd, pixbuf);
 849                                 g_object_unref(pixbuf);
 850                                 }
 851                         else
 852                                 {
 853                                 image_osd_info_hide(osd);
 854                                 }
 855                         }
 856                 }
 857         else
 858                 {
 859                 image_osd_info_hide(osd);
 860                 }
 861
 862         if (osd->show & OSD_SHOW_STATUS)
 863                 {
 864                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 865                         image_osd_icons_reset_time(osd);
 866
 867                 if (osd->changed_states & IMAGE_STATE_COLOR_ADJ)
 868                         {
 869                         osd->icon_time[IMAGE_OSD_COLOR] = IMAGE_OSD_DEFAULT_DURATION + 1;
 870                         image_osd_timer_schedule(osd);
 871                         }
 872
 873                 if (osd->changed_states & IMAGE_STATE_ROTATE_AUTO)
 874                         {
 875                         gint n = 0;
 876
 877                         if (osd->imd->state & IMAGE_STATE_ROTATE_AUTO)
 878                                 {
 879                                 n = 1;
 880                                 if (!osd->imd->cm) n += IMAGE_OSD_DEFAULT_DURATION;
 881                                 }
 882
 883                         osd->icon_time[IMAGE_OSD_ROTATE_AUTO] = n;
 884                         image_osd_timer_schedule(osd);
 885                         }
 886
 887                 image_osd_icons_update(osd);
 888                 }
 889         else
 890                 {
 891                 image_osd_icons_hide(osd);
 892                 }
 893
 894         if (osd->imd->il && osd->imd->il->done)
 895                 osd->changed_states = IMAGE_STATE_NONE;
 896         osd->idle_id = -1;
 897         return FALSE;
 898 }
 899
 900 static void image_osd_update_schedule(OverlayStateData *osd, gint force)
 901 {
 902         if (force) osd->changed_states |= IMAGE_STATE_IMAGE;
 903
 904         if (osd->idle_id == -1)
 905                 {
 906                 osd->idle_id = g_idle_add_full(G_PRIORITY_HIGH, image_osd_update_cb, osd, NULL);
 907                 }
 908 }
 909
 910 void image_osd_update(ImageWindow *imd)
 911 {
 912         OverlayStateData *osd = image_get_osd_data(imd);
 913
 914         if (!osd) return;
 915
 916         image_osd_update_schedule(osd, TRUE);
 917 }
 918
 919 static gint image_osd_timer_cb(gpointer data)
 920 {
 921         OverlayStateData *osd = data;
 922         gint done = TRUE;
 923         gint changed = FALSE;
 924         gint i;
 925
 926         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 927                 {
 928                 if (osd->icon_time[i] > 1)
 929                         {
 930                         osd->icon_time[i]--;
 931                         if (osd->icon_time[i] < 2)
 932                                 {
 933                                 osd->icon_time[i] = 0;
 934                                 changed = TRUE;
 935                                 }
 936                         else
 937                                 {
 938                                 done = FALSE;
 939                                 }
 940                         }
 941                 }
 942
 943         if (changed) image_osd_update_schedule(osd, FALSE);
 944
 945         if (done)
 946                 {
 947                 osd->timer_id = -1;
 948                 return FALSE;
 949                 }
 950
 951         return TRUE;
 952 }
 953
 954 static void image_osd_timer_schedule(OverlayStateData *osd)
 955 {
 956         if (osd->timer_id == -1)
 957                 {
 958                 osd->timer_id = g_timeout_add(100, image_osd_timer_cb, osd);
 959                 }
 960 }
 961
 962 static void image_osd_state_cb(ImageWindow *imd, ImageState state, gpointer data)
 963 {
 964         OverlayStateData *osd = data;
 965
 966         osd->changed_states |= state;
 967         image_osd_update_schedule(osd, FALSE);
 968 }
 969
 970 static void image_osd_free(OverlayStateData *osd)
 971 {
 972         if (!osd) return;
 973
 974         if (osd->idle_id != -1) g_source_remove(osd->idle_id);
 975         if (osd->timer_id != -1) g_source_remove(osd->timer_id);
 976
 977         if (osd->imd)
 978                 {
 979                 image_set_osd_data(osd->imd, NULL);
 980                 g_signal_handler_disconnect(osd->imd->pr, osd->destroy_id);
 981
 982                 image_set_state_func(osd->imd, NULL, NULL);
 983
 984                 image_osd_info_hide(osd);
 985                 image_osd_icons_hide(osd);
 986                 }
 987
 988         if (osd->histogram) histogram_free(osd->histogram);
 989
 990         g_free(osd);
 991 }
 992
 993 static void image_osd_remove(ImageWindow *imd)
 994 {
 995         OverlayStateData *osd = image_get_osd_data(imd);
 996
 997         if (osd) image_osd_free(osd);
 998 }
 999
1000 static void image_osd_destroy_cb(GtkWidget *widget, gpointer data)
1001 {
1002         OverlayStateData *osd = data;
1003
1004         osd->imd = NULL;
1005         image_osd_free(osd);
1006 }
1007
1008 static void image_osd_enable(ImageWindow *imd, OsdShowFlags show)
1009 {
1010         OverlayStateData *osd = image_get_osd_data(imd);
1011
1012         if (!osd)
1013                 {
1014                 osd = g_new0(OverlayStateData, 1);
1015                 osd->imd = imd;
1016                 osd->idle_id = -1;
1017                 osd->timer_id = -1;
1018                 osd->show = OSD_SHOW_NOTHING;
1019                 osd->histogram = NULL;
1020                 osd->x = options->image_overlay.common.x;
1021                 osd->y = options->image_overlay.common.y;
1022
1023                 osd->destroy_id = g_signal_connect(G_OBJECT(imd->pr), "destroy",
1024                                                    G_CALLBACK(image_osd_destroy_cb), osd);
1025                 image_set_osd_data(imd, osd);
1026
1027                 image_set_state_func(osd->imd, image_osd_state_cb, osd);
1028                 }
1029
1030         if (show & OSD_SHOW_HISTOGRAM)
1031                 osd->histogram = histogram_new();
1032         else if (osd->histogram)
1033                 {
1034                 histogram_free(osd->histogram);
1035                 osd->histogram = NULL;
1036                 }
1037
1038         if (show & OSD_SHOW_STATUS)
1039                 image_osd_icon(imd, IMAGE_OSD_ICON, -1);
1040
1041         if (show != osd->show)
1042                 image_osd_update_schedule(osd, TRUE);
1043
1044         osd->show = show;
1045 }
1046
1047 void image_osd_set(ImageWindow *imd, OsdShowFlags show)
1048 {
1049         if (!imd) return;
1050
1051         if (show == OSD_SHOW_NOTHING)
1052                 {
1053                 image_osd_remove(imd);
1054                 return;
1055                 }
1056
1057         image_osd_enable(imd, show);
1058 }
1059
1060 OsdShowFlags image_osd_get(ImageWindow *imd)
1061 {
1062         OverlayStateData *osd = image_get_osd_data(imd);
1063
1064         return osd ? osd->show : OSD_SHOW_NOTHING;
1065 }
1066
1067 /* duration:
1068     0 = hide
1069     1 = show
1070    2+ = show for duration tenths of a second
1071    -1 = use default duration
1072  */
1073 void image_osd_icon(ImageWindow *imd, ImageOSDFlag flag, gint duration)
1074 {
1075         OverlayStateData *osd = image_get_osd_data(imd);
1076
1077         if (!osd) return;
1078
1079         if (flag < IMAGE_OSD_NONE || flag >= IMAGE_OSD_COUNT) return;
1080         if (duration < 0) duration = IMAGE_OSD_DEFAULT_DURATION;
1081         if (duration > 1) duration += 1;
1082
1083         osd->icon_time[flag] = duration;
1084
1085         image_osd_update_schedule(osd, FALSE);
1086         image_osd_timer_schedule(osd);
1087 }