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