src/image-overlay.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2010 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 "collect.h"
  17 #include "exif.h"
  18 #include "filedata.h"
  19 #include "histogram.h"
  20 #include "image.h"
  21 #include "img-view.h"
  22 #include "layout.h"
  23 #include "metadata.h"
  24 #include "pixbuf-renderer.h"
  25 #include "pixbuf_util.h"
  26 #include "ui_fileops.h"
  27 #include "image-load.h"
  28 #include "glua.h"
  29
  30 /*
  31  *----------------------------------------------------------------------------
  32  * image overlay
  33  *----------------------------------------------------------------------------
  34  */
  35
  36
  37 typedef struct _OverlayStateData OverlayStateData;
  38 struct _OverlayStateData {
  39         ImageWindow *imd;
  40         ImageState changed_states;
  41         NotifyType notify;
  42
  43         Histogram *histogram;
  44
  45         OsdShowFlags show;
  46
  47         gint ovl_info;
  48
  49         gint x;
  50         gint y;
  51
  52         gint icon_time[IMAGE_OSD_COUNT];
  53         gint icon_id[IMAGE_OSD_COUNT];
  54
  55         guint idle_id; /* event source id */
  56         guint timer_id; /* event source id */
  57         gulong destroy_id;
  58 };
  59
  60
  61 typedef struct _OSDIcon OSDIcon;
  62 struct _OSDIcon {
  63         gboolean reset; /* reset on new image */
  64         gint x;         /* x, y offset */
  65         gint y;
  66         gchar *key;     /* inline pixbuf */
  67 };
  68
  69 static OSDIcon osd_icons[] = {
  70         {  TRUE,   0,   0, NULL },                      /* none */
  71         {  TRUE, -10, -10, NULL },                      /* auto rotated */
  72         {  TRUE, -10, -10, NULL },                      /* user rotated */
  73         {  TRUE, -40, -10, NULL },                      /* color embedded */
  74         {  TRUE, -70, -10, NULL },                      /* first image */
  75         {  TRUE, -70, -10, NULL },                      /* last image */
  76         { FALSE, -70, -10, NULL },                      /* osd enabled */
  77         { FALSE, 0, 0, NULL }
  78 };
  79
  80 #define OSD_DATA "overlay-data"
  81
  82 #define IMAGE_OSD_DEFAULT_DURATION 30
  83
  84 #define HISTOGRAM_HEIGHT 140
  85 #define HISTOGRAM_WIDTH  256
  86
  87 static void image_osd_timer_schedule(OverlayStateData *osd);
  88
  89 void set_image_overlay_template_string(gchar **template_string, const gchar *value)
  90 {
  91         g_assert(template_string);
  92
  93         g_free(*template_string);
  94         *template_string = g_strdup(value);
  95 }
  96
  97
  98 void set_default_image_overlay_template_string(gchar **template_string)
  99 {
 100         set_image_overlay_template_string(template_string, DEFAULT_OVERLAY_INFO);
 101 }
 102
 103 static OverlayStateData *image_get_osd_data(ImageWindow *imd)
 104 {
 105         OverlayStateData *osd;
 106
 107         if (!imd) return NULL;
 108
 109         g_assert(imd->pr);
 110
 111         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 112         return osd;
 113 }
 114
 115 static void image_set_osd_data(ImageWindow *imd, OverlayStateData *osd)
 116 {
 117         g_assert(imd);
 118         g_assert(imd->pr);
 119         g_object_set_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA", osd);
 120 }
 121
 122 /*
 123  *----------------------------------------------------------------------------
 124  * image histogram
 125  *----------------------------------------------------------------------------
 126  */
 127
 128
 129 void image_osd_histogram_toggle_channel(ImageWindow *imd)
 130 {
 131         OverlayStateData *osd = image_get_osd_data(imd);
 132
 133         if (!osd || !osd->histogram) return;
 134
 135         histogram_toggle_channel(osd->histogram);
 136         image_osd_update(imd);
 137 }
 138
 139 void image_osd_histogram_toggle_mode(ImageWindow *imd)
 140 {
 141         OverlayStateData *osd = image_get_osd_data(imd);
 142
 143         if (!osd || !osd->histogram) return;
 144
 145         histogram_toggle_mode(osd->histogram);
 146         image_osd_update(imd);
 147 }
 148
 149 void image_osd_histogram_set_channel(ImageWindow *imd, gint chan)
 150 {
 151         OverlayStateData *osd = image_get_osd_data(imd);
 152
 153         if (!osd || !osd->histogram) return;
 154
 155         histogram_set_channel(osd->histogram, chan);
 156         image_osd_update(imd);
 157 }
 158
 159 void image_osd_histogram_set_mode(ImageWindow *imd, gint mode)
 160 {
 161         OverlayStateData *osd = image_get_osd_data(imd);
 162
 163         if (!osd || !osd->histogram) return;
 164
 165         histogram_set_mode(osd->histogram, mode);
 166         image_osd_update(imd);
 167 }
 168
 169 gint image_osd_histogram_get_channel(ImageWindow *imd)
 170 {
 171         OverlayStateData *osd = image_get_osd_data(imd);
 172
 173         if (!osd || !osd->histogram) return HCHAN_DEFAULT;
 174
 175         return histogram_get_channel(osd->histogram);
 176 }
 177
 178 gint image_osd_histogram_get_mode(ImageWindow *imd)
 179 {
 180         OverlayStateData *osd = image_get_osd_data(imd);
 181
 182         if (!osd || !osd->histogram) return 0;
 183
 184         return histogram_get_mode(osd->histogram);
 185 }
 186
 187 void image_osd_toggle(ImageWindow *imd)
 188 {
 189         OsdShowFlags show;
 190
 191         if (!imd) return;
 192
 193         show = image_osd_get(imd);
 194         if (show == OSD_SHOW_NOTHING)
 195                 {
 196                 image_osd_set(imd, OSD_SHOW_INFO | OSD_SHOW_STATUS);
 197                 return;
 198                 }
 199         else
 200                 {
 201                 if (show & OSD_SHOW_HISTOGRAM)
 202                         {
 203                         image_osd_set(imd, OSD_SHOW_NOTHING);
 204                         }
 205                 else
 206                         {
 207                         image_osd_set(imd, show | OSD_SHOW_HISTOGRAM);
 208                         }
 209                 }
 210 }
 211
 212 static gchar *keywords_to_string(FileData *fd)
 213 {
 214         GList *keywords;
 215         GString *kwstr = NULL;
 216         gchar *ret = NULL;
 217
 218         g_assert(fd);
 219
 220         keywords = metadata_read_list(fd, KEYWORD_KEY, METADATA_PLAIN);
 221
 222         if (keywords)
 223                 {
 224                 GList *work = keywords;
 225
 226                 while (work)
 227                         {
 228                         gchar *kw = work->data;
 229                         work = work->next;
 230
 231                         if (!kw) continue;
 232                         if (!kwstr)
 233                                 kwstr = g_string_new("");
 234                         else
 235                                 g_string_append(kwstr, ", ");
 236
 237                         g_string_append(kwstr, kw);
 238                         }
 239                 string_list_free(keywords);
 240                 }
 241
 242         if (kwstr)
 243                 {
 244                 ret = kwstr->str;
 245                 g_string_free(kwstr, FALSE);
 246                 }
 247
 248         return ret;
 249 }
 250
 251 static gchar *image_osd_mkinfo(const gchar *str, ImageWindow *imd, GHashTable *vars)
 252 {
 253         gchar delim = '%', imp = '|', sep[] = " - ";
 254         gchar *start, *end;
 255         guint pos, prev;
 256         gboolean want_separator = FALSE;
 257         gchar *name, *data;
 258         GString *new;
 259         gchar *ret;
 260
 261         if (!str || !*str) return g_strdup("");
 262
 263         new = g_string_new(str);
 264
 265         prev = 0;
 266
 267         while (TRUE)
 268                 {
 269                 guint limit = 0;
 270                 gchar *trunc = NULL;
 271                 gchar *limpos = NULL;
 272                 gchar *extra = NULL;
 273                 gchar *extrapos = NULL;
 274                 gchar *p;
 275
 276                 start = strchr(new->str, delim);
 277                 if (!start)
 278                         break;
 279                 end = strchr(start+1, delim);
 280                 if (!end)
 281                         break;
 282
 283                 /* Search for optionnal modifiers
 284                  * %name:99:extra% -> name = "name", limit=99, extra = "extra"
 285                  */
 286                 for (p = start + 1; p < end; p++)
 287                         {
 288                         if (p[0] == ':')
 289                                 {
 290                                 if (g_ascii_isdigit(p[1]) && !limpos)
 291                                         {
 292                                         limpos = p + 1;
 293                                         if (!trunc) trunc = p;
 294                                         }
 295                                 else
 296                                         {
 297                                         extrapos = p + 1;
 298                                         if (!trunc) trunc = p;
 299                                         break;
 300                                         }
 301                                 }
 302                         }
 303
 304                 if (limpos)
 305                         limit = (guint) atoi(limpos);
 306
 307                 if (extrapos)
 308                         extra = g_strndup(extrapos, end - extrapos);
 309
 310                 name = g_strndup(start+1, (trunc ? trunc : end)-start-1);
 311                 pos = start - new->str;
 312                 data = NULL;
 313
 314                 if (strcmp(name, "keywords") == 0)
 315                         {
 316                         data = keywords_to_string(imd->image_fd);
 317                         }
 318                 else if (strcmp(name, "comment") == 0)
 319                         {
 320                         data = metadata_read_string(imd->image_fd, COMMENT_KEY, METADATA_PLAIN);
 321                         }
 322 #ifdef HAVE_LUA
 323                 else if (strncmp(name, "lua/", 4) == 0)
 324                         {
 325                         gchar *tmp;
 326                         tmp = strchr(name+4, '/');
 327                         if (!tmp)
 328                                 break;
 329                         *tmp = '\0';
 330                         data = lua_callvalue(imd->image_fd, name+4, tmp+1);
 331                         }
 332 #endif
 333                 else
 334                         {
 335                         data = g_strdup(g_hash_table_lookup(vars, name));
 336                         if (!data)
 337                                 data = metadata_read_string(imd->image_fd, name, METADATA_FORMATTED);
 338                         }
 339
 340                 if (data && *data && limit > 0 && strlen(data) > limit + 3)
 341                         {
 342                         gchar *new_data = g_strdup_printf("%-*.*s...", limit, limit, data);
 343                         g_free(data);
 344                         data = new_data;
 345                         }
 346
 347                 if (data)
 348                         {
 349                         /* Since we use pango markup to display, we need to escape here */
 350                         gchar *escaped = g_markup_escape_text(data, -1);
 351                         g_free(data);
 352                         data = escaped;
 353                         }
 354
 355                 if (extra)
 356                         {
 357                         if (data && *data)
 358                                 {
 359                                 /* Display data between left and right parts of extra string
 360                                  * the data is expressed by a '*' character. A '*' may be escaped
 361                                  * by a \. You should escape all '*' characters, do not rely on the
 362                                  * current implementation which only replaces the first unescaped '*'.
 363                                  * If no "*" is present, the extra string is just appended to data string.
 364                                  * Pango mark up is accepted in left and right parts.
 365                                  * Any \n is replaced by a newline
 366                                  * Examples:
 367                                  * "<i>*</i>\n" -> data is displayed in italics ended with a newline
 368                                  * "\n"         -> ended with newline
 369                                  * "ISO *"      -> prefix data with "ISO " (ie. "ISO 100")
 370                                  * "\**\*"      -> prefix data with a star, and append a star (ie. "*100*")
 371                                  * "\\*"        -> prefix data with an anti slash (ie "\100")
 372                                  * "Collection <b>*</b>\n" -> display data in bold prefixed by "Collection " and a newline is appended
 373                                  *
 374                                  * FIXME: using background / foreground colors lead to weird results.
 375                                  */
 376                                 gchar *new_data;
 377                                 gchar *left = NULL;
 378                                 gchar *right = extra;
 379                                 gchar *p;
 380                                 guint len = strlen(extra);
 381
 382                                 /* Search for left and right parts and unescape characters */
 383                                 for (p = extra; *p; p++, len--)
 384                                         if (p[0] == '\\')
 385                                                 {
 386                                                 if (p[1] == 'n')
 387                                                         {
 388                                                         memmove(p+1, p+2, --len);
 389                                                         p[0] = '\n';
 390                                                         }
 391                                                 else if (p[1] != '\0')
 392                                                         memmove(p, p+1, len--); // includes \0
 393                                                 }
 394                                         else if (p[0] == '*' && !left)
 395                                                 {
 396                                                 right = p + 1;
 397                                                 left = extra;
 398                                                 }
 399
 400                                 if (left) right[-1] = '\0';
 401
 402                                 new_data = g_strdup_printf("%s%s%s", left ? left : "", data, right);
 403                                 g_free(data);
 404                                 data = new_data;
 405                                 }
 406                         g_free(extra);
 407                         }
 408
 409                 g_string_erase(new, pos, end-start+1);
 410                 if (data && *data)
 411                         {
 412                         if (want_separator)
 413                                 {
 414                                 /* insert separator */
 415                                 g_string_insert(new, pos, sep);
 416                                 pos += strlen(sep);
 417                                 want_separator = FALSE;
 418                                 }
 419
 420                         g_string_insert(new, pos, data);
 421                         pos += strlen(data);
 422                 }
 423
 424                 if (pos-prev >= 1 && new->str[pos] == imp)
 425                         {
 426                         /* pipe character is replaced by a separator, delete it
 427                          * and raise a flag if needed */
 428                         g_string_erase(new, pos--, 1);
 429                         want_separator |= (data && *data);
 430                         }
 431
 432                 if (new->str[pos] == '\n') want_separator = FALSE;
 433
 434                 prev = pos - 1;
 435
 436                 g_free(name);
 437                 g_free(data);
 438                 }
 439
 440         /* search and destroy empty lines */
 441         end = new->str;
 442         while ((start = strchr(end, '\n')))
 443                 {
 444                 end = start;
 445                 while (*++(end) == '\n')
 446                         ;
 447                 g_string_erase(new, start-new->str, end-start-1);
 448                 }
 449
 450         g_strchomp(new->str);
 451
 452         ret = new->str;
 453         g_string_free(new, FALSE);
 454
 455         return ret;
 456 }
 457
 458 typedef enum {
 459         OSDT_NONE       = 0,
 460         OSDT_FREE       = 1 << 0,
 461         OSDT_NO_DUP     = 1 << 1
 462 } OsdTemplateFlags;
 463
 464 static void osd_template_insert(GHashTable *vars, gchar *keyword, gchar *value, OsdTemplateFlags flags)
 465 {
 466         if (!value)
 467                 {
 468                 g_hash_table_insert(vars, keyword, g_strdup(""));
 469                 return;
 470                 }
 471
 472         if (flags & OSDT_NO_DUP)
 473                 {
 474                 g_hash_table_insert(vars, keyword, value);
 475                 return;
 476                 }
 477         else
 478                 {
 479                 g_hash_table_insert(vars, keyword, g_strdup(value));
 480                 }
 481
 482         if (flags & OSDT_FREE) g_free((gpointer) value);
 483 }
 484
 485 static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
 486 {
 487         GdkPixbuf *pixbuf = NULL;
 488         gint width, height;
 489         PangoLayout *layout;
 490         const gchar *name;
 491         gchar *text;
 492         GdkPixbuf *imgpixbuf = NULL;
 493         gboolean with_hist;
 494         const HistMap *histmap;
 495         ImageWindow *imd = osd->imd;
 496         FileData *fd = image_get_fd(imd);
 497
 498         if (!fd) return NULL;
 499
 500         name = image_get_name(imd);
 501         if (name)
 502                 {
 503                 gint n, t;
 504                 CollectionData *cd;
 505                 CollectInfo *info;
 506                 GHashTable *vars;
 507
 508                 vars = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_free);
 509
 510                 cd = image_get_collection(imd, &info);
 511                 if (cd)
 512                         {
 513                         t = g_list_length(cd->list);
 514                         n = g_list_index(cd->list, info) + 1;
 515                         if (cd->name)
 516                                 {
 517                                 if (file_extension_match(cd->name, GQ_COLLECTION_EXT))
 518                                         osd_template_insert(vars, "collection", remove_extension_from_path(cd->name), OSDT_FREE);
 519                                 else
 520                                         osd_template_insert(vars, "collection", cd->name, OSDT_NONE);
 521                                 }
 522                         else
 523                                 {
 524                                 osd_template_insert(vars, "collection", _("Untitled"), OSDT_NONE);
 525                                 }
 526                         }
 527                 else
 528                         {
 529                         LayoutWindow *lw = layout_find_by_image(imd);
 530                         if (lw)
 531                                 {
 532                                 if (lw->slideshow)
 533                                         {
 534                                         n = g_list_length(lw->slideshow->list_done);
 535                                         t = n + g_list_length(lw->slideshow->list);
 536                                         if (n == 0) n = t;
 537                                         }
 538                                 else
 539                                         {
 540                                         t = layout_list_count(lw, NULL);
 541                                         n = layout_list_get_index(lw, image_get_fd(lw->image)) + 1;
 542                                         }
 543                                 }
 544                         else if (view_window_find_image(imd, &n, &t))
 545                                 {
 546                                 n++;
 547                                 }
 548                         else
 549                                 {
 550                                 t = 1;
 551                                 n = 1;
 552                                 }
 553
 554                         if (n < 1) n = 1;
 555                         if (t < 1) t = 1;
 556
 557                         osd_template_insert(vars, "collection", NULL, OSDT_NONE);
 558                         }
 559
 560                 osd_template_insert(vars, "number", g_strdup_printf("%d", n), OSDT_NO_DUP);
 561                 osd_template_insert(vars, "total", g_strdup_printf("%d", t), OSDT_NO_DUP);
 562                 osd_template_insert(vars, "name", (gchar *) name, OSDT_NONE);
 563                 osd_template_insert(vars, "date", imd->image_fd ? ((gchar *) text_from_time(imd->image_fd->date)) : "", OSDT_NONE);
 564                 osd_template_insert(vars, "size", imd->image_fd ? (text_from_size_abrev(imd->image_fd->size)) : g_strdup(""), OSDT_FREE);
 565                 osd_template_insert(vars, "zoom", image_zoom_get_as_text(imd), OSDT_FREE);
 566
 567                 if (!imd->unknown)
 568                         {
 569                         gint w, h;
 570                         GdkPixbuf *load_pixbuf = image_loader_get_pixbuf(imd->il);
 571
 572                         if (imd->delay_flip &&
 573                             imd->il && load_pixbuf &&
 574                             image_get_pixbuf(imd) != load_pixbuf)
 575                                 {
 576                                 w = gdk_pixbuf_get_width(load_pixbuf);
 577                                 h = gdk_pixbuf_get_height(load_pixbuf);
 578                                 imgpixbuf = load_pixbuf;
 579                                 }
 580                         else
 581                                 {
 582                                 image_get_image_size(imd, &w, &h);
 583                                 imgpixbuf = (PIXBUF_RENDERER(imd->pr))->pixbuf;
 584                                 }
 585
 586
 587                         osd_template_insert(vars, "width", g_strdup_printf("%d", w), OSDT_NO_DUP);
 588                         osd_template_insert(vars, "height", g_strdup_printf("%d", h), OSDT_NO_DUP);
 589                         osd_template_insert(vars, "res", g_strdup_printf("%d × %d", w, h), OSDT_FREE);
 590                         }
 591                 else
 592                         {
 593                         osd_template_insert(vars, "width", NULL, OSDT_NONE);
 594                         osd_template_insert(vars, "height", NULL, OSDT_NONE);
 595                         osd_template_insert(vars, "res", NULL, OSDT_NONE);
 596                         }
 597
 598                 text = image_osd_mkinfo(options->image_overlay.template_string, imd, vars);
 599                 g_hash_table_destroy(vars);
 600
 601         } else {
 602                 /* When does this occur ?? */
 603                 text = g_markup_escape_text(_("Untitled"), -1);
 604         }
 605
 606         with_hist = ((osd->show & OSD_SHOW_HISTOGRAM) && osd->histogram);
 607         if (with_hist)
 608                 {
 609                 histmap = histmap_get(imd->image_fd);
 610                 if (!histmap)
 611                         {
 612                         histmap_start_idle(imd->image_fd);
 613                         with_hist = FALSE;
 614                         }
 615                 }
 616
 617
 618         {
 619                 gint active_marks = 0;
 620                 gint mark;
 621                 gchar *text2;
 622
 623                 for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 624                         {
 625                         active_marks += file_data_get_mark(fd, mark);
 626                         }
 627
 628                 if (active_marks > 0)
 629                         {
 630                         GString *buf = g_string_sized_new(FILEDATA_MARKS_SIZE * 2);
 631
 632                         for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 633                                 {
 634                                 g_string_append_printf(buf, file_data_get_mark(fd, mark) ? " <span background='#FF00FF'>%c</span>" : " %c", '1' + mark);
 635                                 }
 636
 637                         if (*text)
 638                                 text2 = g_strdup_printf("%s\n%s", text, buf->str);
 639                         else
 640                                 text2 = g_strdup(buf->str);
 641                         g_string_free(buf, TRUE);
 642                         g_free(text);
 643                         text = text2;
 644                         }
 645
 646                 if (with_hist)
 647                         {
 648                         gchar *escaped_histogram_label = g_markup_escape_text(histogram_label(osd->histogram), -1);
 649                         if (*text)
 650                                 text2 = g_strdup_printf("%s\n%s", text, escaped_histogram_label);
 651                         else
 652                                 text2 = g_strdup(escaped_histogram_label);
 653                         g_free(escaped_histogram_label);
 654                         g_free(text);
 655                         text = text2;
 656                         }
 657         }
 658
 659         layout = gtk_widget_create_pango_layout(imd->pr, NULL);
 660         pango_layout_set_markup(layout, text, -1);
 661         g_free(text);
 662
 663         pango_layout_get_pixel_size(layout, &width, &height);
 664         /* with empty text width is set to 0, but not height) */
 665         if (width == 0)
 666                 height = 0;
 667         else if (height == 0)
 668                 width = 0;
 669         if (width > 0) width += 10;
 670         if (height > 0) height += 10;
 671
 672         if (with_hist)
 673                 {
 674                 if (width < HISTOGRAM_WIDTH + 10) width = HISTOGRAM_WIDTH + 10;
 675                 height += HISTOGRAM_HEIGHT + 5;
 676                 }
 677
 678         if (width > 0 && height > 0)
 679                 {
 680                 /* TODO: make osd color configurable --Zas */
 681                 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
 682                 pixbuf_set_rect_fill(pixbuf, 3, 3, width-6, height-6, 240, 240, 240, 210);
 683                 pixbuf_set_rect(pixbuf, 0, 0, width, height, 240, 240, 240, 80, 1, 1, 1, 1);
 684                 pixbuf_set_rect(pixbuf, 1, 1, width-2, height-2, 240, 240, 240, 130, 1, 1, 1, 1);
 685                 pixbuf_set_rect(pixbuf, 2, 2, width-4, height-4, 240, 240, 240, 180, 1, 1, 1, 1);
 686                 pixbuf_pixel_set(pixbuf, 0, 0, 0, 0, 0, 0);
 687                 pixbuf_pixel_set(pixbuf, width - 1, 0, 0, 0, 0, 0);
 688                 pixbuf_pixel_set(pixbuf, 0, height - 1, 0, 0, 0, 0);
 689                 pixbuf_pixel_set(pixbuf, width - 1, height - 1, 0, 0, 0, 0);
 690
 691                 if (with_hist)
 692                         {
 693                         gint x = 5;
 694                         gint y = height - HISTOGRAM_HEIGHT - 5;
 695                         gint w = width - 10;
 696
 697                         pixbuf_set_rect_fill(pixbuf, x, y, w, HISTOGRAM_HEIGHT, 220, 220, 220, 210);
 698                         histogram_draw(osd->histogram, histmap, pixbuf, x, y, w, HISTOGRAM_HEIGHT);
 699                         }
 700                 pixbuf_draw_layout(pixbuf, layout, imd->pr, 5, 5, 0, 0, 0, 255);
 701         }
 702
 703         g_object_unref(G_OBJECT(layout));
 704
 705         return pixbuf;
 706 }
 707
 708 static GdkPixbuf *image_osd_icon_pixbuf(ImageOSDFlag flag)
 709 {
 710         static GdkPixbuf **icons = NULL;
 711         GdkPixbuf *icon = NULL;
 712
 713         if (!icons) icons = g_new0(GdkPixbuf *, IMAGE_OSD_COUNT);
 714         if (icons[flag]) return icons[flag];
 715
 716         if (osd_icons[flag].key)
 717                 {
 718                 icon = pixbuf_inline(osd_icons[flag].key);
 719                 }
 720
 721         if (!icon)
 722                 {
 723                 icon = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 24, 24);
 724                 pixbuf_set_rect_fill(icon, 1, 1, 22, 22, 255, 255, 255, 200);
 725                 pixbuf_set_rect(icon, 0, 0, 24, 24, 0, 0, 0, 128, 1, 1, 1, 1);
 726                 switch (flag)
 727                         {
 728                         case IMAGE_OSD_ROTATE_AUTO:
 729                                 pixbuf_set_rect(icon, 3, 8, 11, 12,
 730                                                 0, 0, 0, 255,
 731                                                 3, 0, 3, 0);
 732                                 pixbuf_draw_triangle(icon, 14, 3, 6, 12,
 733                                                      20, 9, 14, 15, 14, 3,
 734                                                      0, 0, 0, 255);
 735                                 break;
 736                         case IMAGE_OSD_ROTATE_USER:
 737                                 break;
 738                         case IMAGE_OSD_COLOR:
 739                                 pixbuf_set_rect_fill(icon, 3, 3, 18, 6, 200, 0, 0, 255);
 740                                 pixbuf_set_rect_fill(icon, 3, 9, 18, 6, 0, 200, 0, 255);
 741                                 pixbuf_set_rect_fill(icon, 3, 15, 18, 6, 0, 0, 200, 255);
 742                                 break;
 743                         case IMAGE_OSD_FIRST:
 744                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 3, 0);
 745                                 pixbuf_draw_triangle(icon, 6, 5, 12, 6,
 746                                                      12, 5, 18, 11, 6, 11,
 747                                                      0, 0, 0, 255);
 748                                 break;
 749                         case IMAGE_OSD_LAST:
 750                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 0, 3);
 751                                 pixbuf_draw_triangle(icon, 6, 12, 12, 6,
 752                                                      12, 18, 6, 12, 18, 12,
 753                                                      0, 0, 0, 255);
 754                                 break;
 755                         case IMAGE_OSD_ICON:
 756                                 pixbuf_set_rect_fill(icon, 11, 3, 3, 12, 0, 0, 0, 255);
 757                                 pixbuf_set_rect_fill(icon, 11, 17, 3, 3, 0, 0, 0, 255);
 758                                 break;
 759                         default:
 760                                 break;
 761                         }
 762                 }
 763
 764         icons[flag] = icon;
 765
 766         return icon;
 767 }
 768
 769 static gint image_overlay_add(ImageWindow *imd, GdkPixbuf *pixbuf, gint x, gint y,
 770                               OverlayRendererFlags flags)
 771 {
 772         return pixbuf_renderer_overlay_add((PixbufRenderer *)imd->pr, pixbuf, x, y, flags);
 773 }
 774
 775 static void image_overlay_set(ImageWindow *imd, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 776 {
 777         pixbuf_renderer_overlay_set((PixbufRenderer *)imd->pr, id, pixbuf, x, y);
 778 }
 779
 780 #if 0 /* unused for now */
 781 static gint image_overlay_get(ImageWindow *imd, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
 782 {
 783         return pixbuf_renderer_overlay_get((PixbufRenderer *)imd->pr, id, pixbuf, x, y);
 784 }
 785 #endif
 786
 787 static void image_overlay_remove(ImageWindow *imd, gint id)
 788 {
 789         pixbuf_renderer_overlay_remove((PixbufRenderer *)imd->pr, id);
 790 }
 791
 792 static void image_osd_icon_show(OverlayStateData *osd, ImageOSDFlag flag)
 793 {
 794         GdkPixbuf *pixbuf;
 795
 796         if (osd->icon_id[flag]) return;
 797
 798         pixbuf = image_osd_icon_pixbuf(flag);
 799         if (!pixbuf) return;
 800
 801         osd->icon_id[flag] = image_overlay_add(osd->imd, pixbuf,
 802                                                osd_icons[flag].x, osd_icons[flag].y,
 803                                                OVL_RELATIVE);
 804 }
 805
 806 static void image_osd_icon_hide(OverlayStateData *osd, ImageOSDFlag flag)
 807 {
 808         if (osd->icon_id[flag])
 809                 {
 810                 image_overlay_remove(osd->imd, osd->icon_id[flag]);
 811                 osd->icon_id[flag] = 0;
 812                 }
 813 }
 814
 815 static void image_osd_icons_reset_time(OverlayStateData *osd)
 816 {
 817         gint i;
 818
 819         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 820                 {
 821                 if (osd_icons[i].reset)
 822                         {
 823                         osd->icon_time[i] = 0;
 824                         }
 825                 }
 826 }
 827
 828 static void image_osd_icons_update(OverlayStateData *osd)
 829 {
 830         gint i;
 831
 832         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 833                 {
 834                 if (osd->icon_time[i] > 0)
 835                         {
 836                         image_osd_icon_show(osd, i);
 837                         }
 838                 else
 839                         {
 840                         image_osd_icon_hide(osd, i);
 841                         }
 842                 }
 843 }
 844
 845 static void image_osd_icons_hide(OverlayStateData *osd)
 846 {
 847         gint i;
 848
 849         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 850                 {
 851                 image_osd_icon_hide(osd, i);
 852                 }
 853 }
 854
 855 static void image_osd_info_show(OverlayStateData *osd, GdkPixbuf *pixbuf)
 856 {
 857         if (osd->ovl_info == 0)
 858                 {
 859                 osd->ovl_info = image_overlay_add(osd->imd, pixbuf, osd->x, osd->y, OVL_RELATIVE);
 860                 }
 861         else
 862                 {
 863                 image_overlay_set(osd->imd, osd->ovl_info, pixbuf, osd->x, osd->y);
 864                 }
 865 }
 866
 867 static void image_osd_info_hide(OverlayStateData *osd)
 868 {
 869         if (osd->ovl_info == 0) return;
 870
 871         image_overlay_remove(osd->imd, osd->ovl_info);
 872         osd->ovl_info = 0;
 873 }
 874
 875 static gboolean image_osd_update_cb(gpointer data)
 876 {
 877         OverlayStateData *osd = data;
 878
 879         if (osd->show & OSD_SHOW_INFO)
 880                 {
 881                 /* redraw when the image was changed,
 882                    with histogram we have to redraw also when loading is finished */
 883                 if (osd->changed_states & IMAGE_STATE_IMAGE ||
 884                     (osd->changed_states & IMAGE_STATE_LOADING && osd->show & OSD_SHOW_HISTOGRAM) ||
 885                     osd->notify & NOTIFY_HISTMAP)
 886                         {
 887                         GdkPixbuf *pixbuf;
 888
 889                         pixbuf = image_osd_info_render(osd);
 890                         if (pixbuf)
 891                                 {
 892                                 image_osd_info_show(osd, pixbuf);
 893                                 g_object_unref(pixbuf);
 894                                 }
 895                         else
 896                                 {
 897                                 image_osd_info_hide(osd);
 898                                 }
 899                         }
 900                 }
 901         else
 902                 {
 903                 image_osd_info_hide(osd);
 904                 }
 905
 906         if (osd->show & OSD_SHOW_STATUS)
 907                 {
 908                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 909                         image_osd_icons_reset_time(osd);
 910
 911                 if (osd->changed_states & IMAGE_STATE_COLOR_ADJ)
 912                         {
 913                         osd->icon_time[IMAGE_OSD_COLOR] = IMAGE_OSD_DEFAULT_DURATION + 1;
 914                         image_osd_timer_schedule(osd);
 915                         }
 916
 917                 if (osd->changed_states & IMAGE_STATE_ROTATE_AUTO)
 918                         {
 919                         gint n = 0;
 920
 921                         if (osd->imd->state & IMAGE_STATE_ROTATE_AUTO)
 922                                 {
 923                                 n = 1;
 924                                 if (!osd->imd->cm) n += IMAGE_OSD_DEFAULT_DURATION;
 925                                 }
 926
 927                         osd->icon_time[IMAGE_OSD_ROTATE_AUTO] = n;
 928                         image_osd_timer_schedule(osd);
 929                         }
 930
 931                 image_osd_icons_update(osd);
 932                 }
 933         else
 934                 {
 935                 image_osd_icons_hide(osd);
 936                 }
 937
 938         osd->changed_states = IMAGE_STATE_NONE;
 939         osd->notify = 0;
 940         osd->idle_id = 0;
 941         return FALSE;
 942 }
 943
 944 static void image_osd_update_schedule(OverlayStateData *osd, gboolean force)
 945 {
 946         if (force) osd->changed_states |= IMAGE_STATE_IMAGE;
 947
 948         if (!osd->idle_id)
 949                 {
 950                 osd->idle_id = g_idle_add_full(G_PRIORITY_HIGH, image_osd_update_cb, osd, NULL);
 951                 }
 952 }
 953
 954 void image_osd_update(ImageWindow *imd)
 955 {
 956         OverlayStateData *osd = image_get_osd_data(imd);
 957
 958         if (!osd) return;
 959
 960         image_osd_update_schedule(osd, TRUE);
 961 }
 962
 963 static gboolean image_osd_timer_cb(gpointer data)
 964 {
 965         OverlayStateData *osd = data;
 966         gboolean done = TRUE;
 967         gboolean changed = FALSE;
 968         gint i;
 969
 970         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 971                 {
 972                 if (osd->icon_time[i] > 1)
 973                         {
 974                         osd->icon_time[i]--;
 975                         if (osd->icon_time[i] < 2)
 976                                 {
 977                                 osd->icon_time[i] = 0;
 978                                 changed = TRUE;
 979                                 }
 980                         else
 981                                 {
 982                                 done = FALSE;
 983                                 }
 984                         }
 985                 }
 986
 987         if (changed) image_osd_update_schedule(osd, FALSE);
 988
 989         if (done)
 990                 {
 991                 osd->timer_id = 0;
 992                 return FALSE;
 993                 }
 994
 995         return TRUE;
 996 }
 997
 998 static void image_osd_timer_schedule(OverlayStateData *osd)
 999 {
1000         if (!osd->timer_id)
1001                 {
1002                 osd->timer_id = g_timeout_add(100, image_osd_timer_cb, osd);
1003                 }
1004 }
1005
1006 static void image_osd_state_cb(ImageWindow *imd, ImageState state, gpointer data)
1007 {
1008         OverlayStateData *osd = data;
1009
1010         osd->changed_states |= state;
1011         image_osd_update_schedule(osd, FALSE);
1012 }
1013
1014 static void image_osd_notify_cb(FileData *fd, NotifyType type, gpointer data)
1015 {
1016         OverlayStateData *osd = data;
1017
1018         if ((type & (NOTIFY_HISTMAP)) && osd->imd && fd == osd->imd->image_fd)
1019                 {
1020                 DEBUG_1("Notify osd: %s %04x", fd->path, type);
1021                 osd->notify |= type;
1022                 image_osd_update_schedule(osd, FALSE);
1023                 }
1024 }
1025
1026
1027 static void image_osd_free(OverlayStateData *osd)
1028 {
1029         if (!osd) return;
1030
1031         if (osd->idle_id) g_source_remove(osd->idle_id);
1032         if (osd->timer_id) g_source_remove(osd->timer_id);
1033
1034         file_data_unregister_notify_func(image_osd_notify_cb, osd);
1035
1036         if (osd->imd)
1037                 {
1038                 image_set_osd_data(osd->imd, NULL);
1039                 g_signal_handler_disconnect(osd->imd->pr, osd->destroy_id);
1040
1041                 image_set_state_func(osd->imd, NULL, NULL);
1042
1043                 image_osd_info_hide(osd);
1044                 image_osd_icons_hide(osd);
1045                 }
1046
1047         if (osd->histogram) histogram_free(osd->histogram);
1048
1049         g_free(osd);
1050 }
1051
1052 #if 0
1053 static void image_osd_remove(ImageWindow *imd)
1054 {
1055         OverlayStateData *osd = image_get_osd_data(imd);
1056
1057         if (osd) image_osd_free(osd);
1058 }
1059 #endif
1060
1061 static void image_osd_destroy_cb(GtkWidget *widget, gpointer data)
1062 {
1063         OverlayStateData *osd = data;
1064
1065         osd->imd = NULL;
1066         image_osd_free(osd);
1067 }
1068
1069 static void image_osd_enable(ImageWindow *imd, OsdShowFlags show)
1070 {
1071         OverlayStateData *osd = image_get_osd_data(imd);
1072
1073         if (!osd)
1074                 {
1075                 osd = g_new0(OverlayStateData, 1);
1076                 osd->imd = imd;
1077                 osd->show = OSD_SHOW_NOTHING;
1078                 osd->x = options->image_overlay.x;
1079                 osd->y = options->image_overlay.y;
1080
1081                 osd->histogram = histogram_new();
1082
1083                 osd->destroy_id = g_signal_connect(G_OBJECT(imd->pr), "destroy",
1084                                                    G_CALLBACK(image_osd_destroy_cb), osd);
1085                 image_set_osd_data(imd, osd);
1086
1087                 image_set_state_func(osd->imd, image_osd_state_cb, osd);
1088                 file_data_register_notify_func(image_osd_notify_cb, osd, NOTIFY_PRIORITY_LOW);
1089                 }
1090
1091         if (show & OSD_SHOW_STATUS)
1092                 image_osd_icon(imd, IMAGE_OSD_ICON, -1);
1093
1094         if (show != osd->show)
1095                 image_osd_update_schedule(osd, TRUE);
1096
1097         osd->show = show;
1098 }
1099
1100 void image_osd_set(ImageWindow *imd, OsdShowFlags show)
1101 {
1102         if (!imd) return;
1103
1104         image_osd_enable(imd, show);
1105 }
1106
1107 OsdShowFlags image_osd_get(ImageWindow *imd)
1108 {
1109         OverlayStateData *osd = image_get_osd_data(imd);
1110
1111         return osd ? osd->show : OSD_SHOW_NOTHING;
1112 }
1113
1114 Histogram *image_osd_get_histogram(ImageWindow *imd)
1115 {
1116         OverlayStateData *osd = image_get_osd_data(imd);
1117
1118         return osd ? osd->histogram : NULL;
1119 }
1120
1121 void image_osd_copy_status(ImageWindow *src, ImageWindow *dest)
1122 {
1123         Histogram *h_src, *h_dest;
1124         image_osd_set(dest, image_osd_get(src));
1125
1126         h_src = image_osd_get_histogram(src);
1127         h_dest = image_osd_get_histogram(dest);
1128
1129         h_dest->histogram_mode = h_src->histogram_mode;
1130         h_dest->histogram_channel = h_src->histogram_channel;
1131
1132 }
1133
1134 /* duration:
1135     0 = hide
1136     1 = show
1137    2+ = show for duration tenths of a second
1138    -1 = use default duration
1139  */
1140 void image_osd_icon(ImageWindow *imd, ImageOSDFlag flag, gint duration)
1141 {
1142         OverlayStateData *osd = image_get_osd_data(imd);
1143
1144         if (!osd) return;
1145
1146         if (flag >= IMAGE_OSD_COUNT) return;
1147         if (duration < 0) duration = IMAGE_OSD_DEFAULT_DURATION;
1148         if (duration > 1) duration += 1;
1149
1150         osd->icon_time[flag] = duration;
1151
1152         image_osd_update_schedule(osd, FALSE);
1153         image_osd_timer_schedule(osd);
1154 }
1155 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */