src/image-overlay.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2012 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
  29 /*
  30  *----------------------------------------------------------------------------
  31  * image overlay
  32  *----------------------------------------------------------------------------
  33  */
  34
  35
  36 typedef struct _OverlayStateData OverlayStateData;
  37 struct _OverlayStateData {
  38         ImageWindow *imd;
  39         ImageState changed_states;
  40         NotifyType notify;
  41
  42         Histogram *histogram;
  43
  44         OsdShowFlags show;
  45
  46         gint ovl_info;
  47
  48         gint x;
  49         gint y;
  50
  51         gint icon_time[IMAGE_OSD_COUNT];
  52         gint icon_id[IMAGE_OSD_COUNT];
  53
  54         guint idle_id; /* event source id */
  55         guint timer_id; /* event source id */
  56         gulong destroy_id;
  57 };
  58
  59
  60 typedef struct _OSDIcon OSDIcon;
  61 struct _OSDIcon {
  62         gboolean reset; /* reset on new image */
  63         gint x;         /* x, y offset */
  64         gint y;
  65         gchar *key;     /* inline pixbuf */
  66 };
  67
  68 static OSDIcon osd_icons[] = {
  69         {  TRUE,   0,   0, NULL },                      /* none */
  70         {  TRUE, -10, -10, NULL },                      /* auto rotated */
  71         {  TRUE, -10, -10, NULL },                      /* user rotated */
  72         {  TRUE, -40, -10, NULL },                      /* color embedded */
  73         {  TRUE, -70, -10, NULL },                      /* first image */
  74         {  TRUE, -70, -10, NULL },                      /* last image */
  75         { FALSE, -70, -10, NULL },                      /* osd enabled */
  76         { FALSE, 0, 0, NULL }
  77 };
  78
  79 #define OSD_DATA "overlay-data"
  80
  81 #define IMAGE_OSD_DEFAULT_DURATION 30
  82
  83 #define HISTOGRAM_HEIGHT 140
  84 #define HISTOGRAM_WIDTH  256
  85
  86 static void image_osd_timer_schedule(OverlayStateData *osd);
  87
  88 void set_image_overlay_template_string(gchar **template_string, const gchar *value)
  89 {
  90         g_assert(template_string);
  91
  92         g_free(*template_string);
  93         *template_string = g_strdup(value);
  94 }
  95
  96
  97 void set_default_image_overlay_template_string(gchar **template_string)
  98 {
  99         set_image_overlay_template_string(template_string, DEFAULT_OVERLAY_INFO);
 100 }
 101
 102 static OverlayStateData *image_get_osd_data(ImageWindow *imd)
 103 {
 104         OverlayStateData *osd;
 105
 106         if (!imd) return NULL;
 107
 108         g_assert(imd->pr);
 109
 110         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 111         return osd;
 112 }
 113
 114 static void image_set_osd_data(ImageWindow *imd, OverlayStateData *osd)
 115 {
 116         g_assert(imd);
 117         g_assert(imd->pr);
 118         g_object_set_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA", osd);
 119 }
 120
 121 /*
 122  *----------------------------------------------------------------------------
 123  * image histogram
 124  *----------------------------------------------------------------------------
 125  */
 126
 127
 128 void image_osd_histogram_toggle_channel(ImageWindow *imd)
 129 {
 130         OverlayStateData *osd = image_get_osd_data(imd);
 131
 132         if (!osd || !osd->histogram) return;
 133
 134         histogram_toggle_channel(osd->histogram);
 135         image_osd_update(imd);
 136 }
 137
 138 void image_osd_histogram_toggle_mode(ImageWindow *imd)
 139 {
 140         OverlayStateData *osd = image_get_osd_data(imd);
 141
 142         if (!osd || !osd->histogram) return;
 143
 144         histogram_toggle_mode(osd->histogram);
 145         image_osd_update(imd);
 146 }
 147
 148 void image_osd_histogram_set_channel(ImageWindow *imd, gint chan)
 149 {
 150         OverlayStateData *osd = image_get_osd_data(imd);
 151
 152         if (!osd || !osd->histogram) return;
 153
 154         histogram_set_channel(osd->histogram, chan);
 155         image_osd_update(imd);
 156 }
 157
 158 void image_osd_histogram_set_mode(ImageWindow *imd, gint mode)
 159 {
 160         OverlayStateData *osd = image_get_osd_data(imd);
 161
 162         if (!osd || !osd->histogram) return;
 163
 164         histogram_set_mode(osd->histogram, mode);
 165         image_osd_update(imd);
 166 }
 167
 168 gint image_osd_histogram_get_channel(ImageWindow *imd)
 169 {
 170         OverlayStateData *osd = image_get_osd_data(imd);
 171
 172         if (!osd || !osd->histogram) return HCHAN_DEFAULT;
 173
 174         return histogram_get_channel(osd->histogram);
 175 }
 176
 177 gint image_osd_histogram_get_mode(ImageWindow *imd)
 178 {
 179         OverlayStateData *osd = image_get_osd_data(imd);
 180
 181         if (!osd || !osd->histogram) return 0;
 182
 183         return histogram_get_mode(osd->histogram);
 184 }
 185
 186 void image_osd_toggle(ImageWindow *imd)
 187 {
 188         OsdShowFlags show;
 189
 190         if (!imd) return;
 191
 192         show = image_osd_get(imd);
 193         if (show == OSD_SHOW_NOTHING)
 194                 {
 195                 image_osd_set(imd, OSD_SHOW_INFO | OSD_SHOW_STATUS);
 196                 return;
 197                 }
 198         else
 199                 {
 200                 if (show & OSD_SHOW_HISTOGRAM)
 201                         {
 202                         image_osd_set(imd, OSD_SHOW_NOTHING);
 203                         }
 204                 else
 205                         {
 206                         image_osd_set(imd, show | OSD_SHOW_HISTOGRAM);
 207                         }
 208                 }
 209 }
 210
 211 static gchar *keywords_to_string(FileData *fd)
 212 {
 213         GList *keywords;
 214         GString *kwstr = NULL;
 215         gchar *ret = NULL;
 216
 217         g_assert(fd);
 218
 219         keywords = metadata_read_list(fd, KEYWORD_KEY, METADATA_PLAIN);
 220
 221         if (keywords)
 222                 {
 223                 GList *work = keywords;
 224
 225                 while (work)
 226                         {
 227                         gchar *kw = work->data;
 228                         work = work->next;
 229
 230                         if (!kw) continue;
 231                         if (!kwstr)
 232                                 kwstr = g_string_new("");
 233                         else
 234                                 g_string_append(kwstr, ", ");
 235
 236                         g_string_append(kwstr, kw);
 237                         }
 238                 string_list_free(keywords);
 239                 }
 240
 241         if (kwstr)
 242                 {
 243                 ret = kwstr->str;
 244                 g_string_free(kwstr, FALSE);
 245                 }
 246
 247         return ret;
 248 }
 249
 250 static gchar *image_osd_mkinfo(const gchar *str, ImageWindow *imd, GHashTable *vars)
 251 {
 252         gchar delim = '%', imp = '|', sep[] = " - ";
 253         gchar *start, *end;
 254         guint pos, prev;
 255         gboolean want_separator = FALSE;
 256         gchar *name, *data;
 257         GString *new;
 258         gchar *ret;
 259
 260         if (!str || !*str) return g_strdup("");
 261
 262         new = g_string_new(str);
 263
 264         prev = 0;
 265
 266         while (TRUE)
 267                 {
 268                 guint limit = 0;
 269                 gchar *trunc = NULL;
 270                 gchar *limpos = NULL;
 271                 gchar *extra = NULL;
 272                 gchar *extrapos = NULL;
 273                 gchar *p;
 274
 275                 start = strchr(new->str, delim);
 276                 if (!start)
 277                         break;
 278                 end = strchr(start+1, delim);
 279                 if (!end)
 280                         break;
 281
 282                 /* Search for optionnal modifiers
 283                  * %name:99:extra% -> name = "name", limit=99, extra = "extra"
 284                  */
 285                 for (p = start + 1; p < end; p++)
 286                         {
 287                         if (p[0] == ':')
 288                                 {
 289                                 if (g_ascii_isdigit(p[1]) && !limpos)
 290                                         {
 291                                         limpos = p + 1;
 292                                         if (!trunc) trunc = p;
 293                                         }
 294                                 else
 295                                         {
 296                                         extrapos = p + 1;
 297                                         if (!trunc) trunc = p;
 298                                         break;
 299                                         }
 300                                 }
 301                         }
 302
 303                 if (limpos)
 304                         limit = (guint) atoi(limpos);
 305
 306                 if (extrapos)
 307                         extra = g_strndup(extrapos, end - extrapos);
 308
 309                 name = g_strndup(start+1, (trunc ? trunc : end)-start-1);
 310                 pos = start - new->str;
 311                 data = NULL;
 312
 313                 if (strcmp(name, "keywords") == 0)
 314                         {
 315                         data = keywords_to_string(imd->image_fd);
 316                         }
 317                 else if (strcmp(name, "comment") == 0)
 318                         {
 319                         data = metadata_read_string(imd->image_fd, COMMENT_KEY, METADATA_PLAIN);
 320                         }
 321                 else
 322                         {
 323                         data = g_strdup(g_hash_table_lookup(vars, name));
 324                         if (!data)
 325                                 data = metadata_read_string(imd->image_fd, name, METADATA_FORMATTED);
 326                         }
 327
 328                 if (data && *data && limit > 0 && strlen(data) > limit + 3)
 329                         {
 330                         gchar *new_data = g_strdup_printf("%-*.*s...", limit, limit, data);
 331                         g_free(data);
 332                         data = new_data;
 333                         }
 334
 335                 if (data)
 336                         {
 337                         /* Since we use pango markup to display, we need to escape here */
 338                         gchar *escaped = g_markup_escape_text(data, -1);
 339                         g_free(data);
 340                         data = escaped;
 341                         }
 342
 343                 if (extra)
 344                         {
 345                         if (data && *data)
 346                                 {
 347                                 /* Display data between left and right parts of extra string
 348                                  * the data is expressed by a '*' character. A '*' may be escaped
 349                                  * by a \. You should escape all '*' characters, do not rely on the
 350                                  * current implementation which only replaces the first unescaped '*'.
 351                                  * If no "*" is present, the extra string is just appended to data string.
 352                                  * Pango mark up is accepted in left and right parts.
 353                                  * Any \n is replaced by a newline
 354                                  * Examples:
 355                                  * "<i>*</i>\n" -> data is displayed in italics ended with a newline
 356                                  * "\n"         -> ended with newline
 357                                  * "ISO *"      -> prefix data with "ISO " (ie. "ISO 100")
 358                                  * "\**\*"      -> prefix data with a star, and append a star (ie. "*100*")
 359                                  * "\\*"        -> prefix data with an anti slash (ie "\100")
 360                                  * "Collection <b>*</b>\n" -> display data in bold prefixed by "Collection " and a newline is appended
 361                                  *
 362                                  * FIXME: using background / foreground colors lead to weird results.
 363                                  */
 364                                 gchar *new_data;
 365                                 gchar *left = NULL;
 366                                 gchar *right = extra;
 367                                 gchar *p;
 368                                 guint len = strlen(extra);
 369
 370                                 /* Search for left and right parts and unescape characters */
 371                                 for (p = extra; *p; p++, len--)
 372                                         if (p[0] == '\\')
 373                                                 {
 374                                                 if (p[1] == 'n')
 375                                                         {
 376                                                         memmove(p+1, p+2, --len);
 377                                                         p[0] = '\n';
 378                                                         }
 379                                                 else if (p[1] != '\0')
 380                                                         memmove(p, p+1, len--); // includes \0
 381                                                 }
 382                                         else if (p[0] == '*' && !left)
 383                                                 {
 384                                                 right = p + 1;
 385                                                 left = extra;
 386                                                 }
 387
 388                                 if (left) right[-1] = '\0';
 389
 390                                 new_data = g_strdup_printf("%s%s%s", left ? left : "", data, right);
 391                                 g_free(data);
 392                                 data = new_data;
 393                                 }
 394                         g_free(extra);
 395                         }
 396
 397                 g_string_erase(new, pos, end-start+1);
 398                 if (data && *data)
 399                         {
 400                         if (want_separator)
 401                                 {
 402                                 /* insert separator */
 403                                 g_string_insert(new, pos, sep);
 404                                 pos += strlen(sep);
 405                                 want_separator = FALSE;
 406                                 }
 407
 408                         g_string_insert(new, pos, data);
 409                         pos += strlen(data);
 410                 }
 411
 412                 if (pos-prev >= 1 && new->str[pos] == imp)
 413                         {
 414                         /* pipe character is replaced by a separator, delete it
 415                          * and raise a flag if needed */
 416                         g_string_erase(new, pos--, 1);
 417                         want_separator |= (data && *data);
 418                         }
 419
 420                 if (new->str[pos] == '\n') want_separator = FALSE;
 421
 422                 prev = pos - 1;
 423
 424                 g_free(name);
 425                 g_free(data);
 426                 }
 427
 428         /* search and destroy empty lines */
 429         end = new->str;
 430         while ((start = strchr(end, '\n')))
 431                 {
 432                 end = start;
 433                 while (*++(end) == '\n')
 434                         ;
 435                 g_string_erase(new, start-new->str, end-start-1);
 436                 }
 437
 438         g_strchomp(new->str);
 439
 440         ret = new->str;
 441         g_string_free(new, FALSE);
 442
 443         return ret;
 444 }
 445
 446 typedef enum {
 447         OSDT_NONE       = 0,
 448         OSDT_FREE       = 1 << 0,
 449         OSDT_NO_DUP     = 1 << 1
 450 } OsdTemplateFlags;
 451
 452 static void osd_template_insert(GHashTable *vars, gchar *keyword, gchar *value, OsdTemplateFlags flags)
 453 {
 454         if (!value)
 455                 {
 456                 g_hash_table_insert(vars, keyword, g_strdup(""));
 457                 return;
 458                 }
 459
 460         if (flags & OSDT_NO_DUP)
 461                 {
 462                 g_hash_table_insert(vars, keyword, value);
 463                 return;
 464                 }
 465         else
 466                 {
 467                 g_hash_table_insert(vars, keyword, g_strdup(value));
 468                 }
 469
 470         if (flags & OSDT_FREE) g_free((gpointer) value);
 471 }
 472
 473 static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
 474 {
 475         GdkPixbuf *pixbuf = NULL;
 476         gint width, height;
 477         PangoLayout *layout;
 478         const gchar *name;
 479         gchar *text;
 480         gboolean with_hist;
 481         const HistMap *histmap = NULL;
 482         ImageWindow *imd = osd->imd;
 483         FileData *fd = image_get_fd(imd);
 484
 485         if (!fd) return NULL;
 486
 487         name = image_get_name(imd);
 488         if (name)
 489                 {
 490                 gint n, t;
 491                 CollectionData *cd;
 492                 CollectInfo *info;
 493                 GHashTable *vars;
 494
 495                 vars = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_free);
 496
 497                 cd = image_get_collection(imd, &info);
 498                 if (cd)
 499                         {
 500                         t = g_list_length(cd->list);
 501                         n = g_list_index(cd->list, info) + 1;
 502                         if (cd->name)
 503                                 {
 504                                 if (file_extension_match(cd->name, GQ_COLLECTION_EXT))
 505                                         osd_template_insert(vars, "collection", remove_extension_from_path(cd->name), OSDT_FREE);
 506                                 else
 507                                         osd_template_insert(vars, "collection", cd->name, OSDT_NONE);
 508                                 }
 509                         else
 510                                 {
 511                                 osd_template_insert(vars, "collection", _("Untitled"), OSDT_NONE);
 512                                 }
 513                         }
 514                 else
 515                         {
 516                         LayoutWindow *lw = layout_find_by_image(imd);
 517                         if (lw)
 518                                 {
 519                                 if (lw->slideshow)
 520                                         {
 521                                         n = g_list_length(lw->slideshow->list_done);
 522                                         t = n + g_list_length(lw->slideshow->list);
 523                                         if (n == 0) n = t;
 524                                         }
 525                                 else
 526                                         {
 527                                         t = layout_list_count(lw, NULL);
 528                                         n = layout_list_get_index(lw, image_get_fd(lw->image)) + 1;
 529                                         }
 530                                 }
 531                         else if (view_window_find_image(imd, &n, &t))
 532                                 {
 533                                 n++;
 534                                 }
 535                         else
 536                                 {
 537                                 t = 1;
 538                                 n = 1;
 539                                 }
 540
 541                         if (n < 1) n = 1;
 542                         if (t < 1) t = 1;
 543
 544                         osd_template_insert(vars, "collection", NULL, OSDT_NONE);
 545                         }
 546
 547                 osd_template_insert(vars, "number", g_strdup_printf("%d", n), OSDT_NO_DUP);
 548                 osd_template_insert(vars, "total", g_strdup_printf("%d", t), OSDT_NO_DUP);
 549                 osd_template_insert(vars, "name", (gchar *) name, OSDT_NONE);
 550                 osd_template_insert(vars, "date", imd->image_fd ? ((gchar *) text_from_time(imd->image_fd->date)) : "", OSDT_NONE);
 551                 osd_template_insert(vars, "size", imd->image_fd ? (text_from_size_abrev(imd->image_fd->size)) : g_strdup(""), OSDT_FREE);
 552                 osd_template_insert(vars, "zoom", image_zoom_get_as_text(imd), OSDT_FREE);
 553
 554                 if (!imd->unknown)
 555                         {
 556                         gint w, h;
 557                         GdkPixbuf *load_pixbuf = image_loader_get_pixbuf(imd->il);
 558
 559                         if (imd->delay_flip &&
 560                             imd->il && load_pixbuf &&
 561                             image_get_pixbuf(imd) != load_pixbuf)
 562                                 {
 563                                 w = gdk_pixbuf_get_width(load_pixbuf);
 564                                 h = gdk_pixbuf_get_height(load_pixbuf);
 565                                 }
 566                         else
 567                                 {
 568                                 image_get_image_size(imd, &w, &h);
 569                                 }
 570
 571
 572                         osd_template_insert(vars, "width", g_strdup_printf("%d", w), OSDT_NO_DUP);
 573                         osd_template_insert(vars, "height", g_strdup_printf("%d", h), OSDT_NO_DUP);
 574                         osd_template_insert(vars, "res", g_strdup_printf("%d × %d", w, h), OSDT_FREE);
 575                         }
 576                 else
 577                         {
 578                         osd_template_insert(vars, "width", NULL, OSDT_NONE);
 579                         osd_template_insert(vars, "height", NULL, OSDT_NONE);
 580                         osd_template_insert(vars, "res", NULL, OSDT_NONE);
 581                         }
 582
 583                 text = image_osd_mkinfo(options->image_overlay.template_string, imd, vars);
 584                 g_hash_table_destroy(vars);
 585
 586         } else {
 587                 /* When does this occur ?? */
 588                 text = g_markup_escape_text(_("Untitled"), -1);
 589         }
 590
 591         with_hist = ((osd->show & OSD_SHOW_HISTOGRAM) && osd->histogram);
 592         if (with_hist)
 593                 {
 594                 histmap = histmap_get(imd->image_fd);
 595                 if (!histmap)
 596                         {
 597                         histmap_start_idle(imd->image_fd);
 598                         with_hist = FALSE;
 599                         }
 600                 }
 601
 602
 603         {
 604                 gint active_marks = 0;
 605                 gint mark;
 606                 gchar *text2;
 607
 608                 for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 609                         {
 610                         active_marks += file_data_get_mark(fd, mark);
 611                         }
 612
 613                 if (active_marks > 0)
 614                         {
 615                         GString *buf = g_string_sized_new(FILEDATA_MARKS_SIZE * 2);
 616
 617                         for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 618                                 {
 619                                 g_string_append_printf(buf, file_data_get_mark(fd, mark) ? " <span background='#FF00FF'>%c</span>" : " %c", '1' + mark);
 620                                 }
 621
 622                         if (*text)
 623                                 text2 = g_strdup_printf("%s\n%s", text, buf->str);
 624                         else
 625                                 text2 = g_strdup(buf->str);
 626                         g_string_free(buf, TRUE);
 627                         g_free(text);
 628                         text = text2;
 629                         }
 630
 631                 if (with_hist)
 632                         {
 633                         gchar *escaped_histogram_label = g_markup_escape_text(histogram_label(osd->histogram), -1);
 634                         if (*text)
 635                                 text2 = g_strdup_printf("%s\n%s", text, escaped_histogram_label);
 636                         else
 637                                 text2 = g_strdup(escaped_histogram_label);
 638                         g_free(escaped_histogram_label);
 639                         g_free(text);
 640                         text = text2;
 641                         }
 642         }
 643
 644         layout = gtk_widget_create_pango_layout(imd->pr, NULL);
 645         pango_layout_set_markup(layout, text, -1);
 646         g_free(text);
 647
 648         pango_layout_get_pixel_size(layout, &width, &height);
 649         /* with empty text width is set to 0, but not height) */
 650         if (width == 0)
 651                 height = 0;
 652         else if (height == 0)
 653                 width = 0;
 654         if (width > 0) width += 10;
 655         if (height > 0) height += 10;
 656
 657         if (with_hist)
 658                 {
 659                 if (width < HISTOGRAM_WIDTH + 10) width = HISTOGRAM_WIDTH + 10;
 660                 height += HISTOGRAM_HEIGHT + 5;
 661                 }
 662
 663         if (width > 0 && height > 0)
 664                 {
 665                 /* TODO: make osd color configurable --Zas */
 666                 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
 667                 pixbuf_set_rect_fill(pixbuf, 3, 3, width-6, height-6, 240, 240, 240, 210);
 668                 pixbuf_set_rect(pixbuf, 0, 0, width, height, 240, 240, 240, 80, 1, 1, 1, 1);
 669                 pixbuf_set_rect(pixbuf, 1, 1, width-2, height-2, 240, 240, 240, 130, 1, 1, 1, 1);
 670                 pixbuf_set_rect(pixbuf, 2, 2, width-4, height-4, 240, 240, 240, 180, 1, 1, 1, 1);
 671                 pixbuf_pixel_set(pixbuf, 0, 0, 0, 0, 0, 0);
 672                 pixbuf_pixel_set(pixbuf, width - 1, 0, 0, 0, 0, 0);
 673                 pixbuf_pixel_set(pixbuf, 0, height - 1, 0, 0, 0, 0);
 674                 pixbuf_pixel_set(pixbuf, width - 1, height - 1, 0, 0, 0, 0);
 675
 676                 if (with_hist)
 677                         {
 678                         gint x = 5;
 679                         gint y = height - HISTOGRAM_HEIGHT - 5;
 680                         gint w = width - 10;
 681
 682                         pixbuf_set_rect_fill(pixbuf, x, y, w, HISTOGRAM_HEIGHT, 220, 220, 220, 210);
 683                         histogram_draw(osd->histogram, histmap, pixbuf, x, y, w, HISTOGRAM_HEIGHT);
 684                         }
 685                 pixbuf_draw_layout(pixbuf, layout, imd->pr, 5, 5, 0, 0, 0, 255);
 686         }
 687
 688         g_object_unref(G_OBJECT(layout));
 689
 690         return pixbuf;
 691 }
 692
 693 static GdkPixbuf *image_osd_icon_pixbuf(ImageOSDFlag flag)
 694 {
 695         static GdkPixbuf **icons = NULL;
 696         GdkPixbuf *icon = NULL;
 697
 698         if (!icons) icons = g_new0(GdkPixbuf *, IMAGE_OSD_COUNT);
 699         if (icons[flag]) return icons[flag];
 700
 701         if (osd_icons[flag].key)
 702                 {
 703                 icon = pixbuf_inline(osd_icons[flag].key);
 704                 }
 705
 706         if (!icon)
 707                 {
 708                 icon = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 24, 24);
 709                 pixbuf_set_rect_fill(icon, 1, 1, 22, 22, 255, 255, 255, 200);
 710                 pixbuf_set_rect(icon, 0, 0, 24, 24, 0, 0, 0, 128, 1, 1, 1, 1);
 711                 switch (flag)
 712                         {
 713                         case IMAGE_OSD_ROTATE_AUTO:
 714                                 pixbuf_set_rect(icon, 3, 8, 11, 12,
 715                                                 0, 0, 0, 255,
 716                                                 3, 0, 3, 0);
 717                                 pixbuf_draw_triangle(icon, 14, 3, 6, 12,
 718                                                      20, 9, 14, 15, 14, 3,
 719                                                      0, 0, 0, 255);
 720                                 break;
 721                         case IMAGE_OSD_ROTATE_USER:
 722                                 break;
 723                         case IMAGE_OSD_COLOR:
 724                                 pixbuf_set_rect_fill(icon, 3, 3, 18, 6, 200, 0, 0, 255);
 725                                 pixbuf_set_rect_fill(icon, 3, 9, 18, 6, 0, 200, 0, 255);
 726                                 pixbuf_set_rect_fill(icon, 3, 15, 18, 6, 0, 0, 200, 255);
 727                                 break;
 728                         case IMAGE_OSD_FIRST:
 729                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 3, 0);
 730                                 pixbuf_draw_triangle(icon, 6, 5, 12, 6,
 731                                                      12, 5, 18, 11, 6, 11,
 732                                                      0, 0, 0, 255);
 733                                 break;
 734                         case IMAGE_OSD_LAST:
 735                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 0, 3);
 736                                 pixbuf_draw_triangle(icon, 6, 12, 12, 6,
 737                                                      12, 18, 6, 12, 18, 12,
 738                                                      0, 0, 0, 255);
 739                                 break;
 740                         case IMAGE_OSD_ICON:
 741                                 pixbuf_set_rect_fill(icon, 11, 3, 3, 12, 0, 0, 0, 255);
 742                                 pixbuf_set_rect_fill(icon, 11, 17, 3, 3, 0, 0, 0, 255);
 743                                 break;
 744                         default:
 745                                 break;
 746                         }
 747                 }
 748
 749         icons[flag] = icon;
 750
 751         return icon;
 752 }
 753
 754 static gint image_overlay_add(ImageWindow *imd, GdkPixbuf *pixbuf, gint x, gint y,
 755                               OverlayRendererFlags flags)
 756 {
 757         return pixbuf_renderer_overlay_add((PixbufRenderer *)imd->pr, pixbuf, x, y, flags);
 758 }
 759
 760 static void image_overlay_set(ImageWindow *imd, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 761 {
 762         pixbuf_renderer_overlay_set((PixbufRenderer *)imd->pr, id, pixbuf, x, y);
 763 }
 764
 765 #if 0 /* unused for now */
 766 static gint image_overlay_get(ImageWindow *imd, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
 767 {
 768         return pixbuf_renderer_overlay_get((PixbufRenderer *)imd->pr, id, pixbuf, x, y);
 769 }
 770 #endif
 771
 772 static void image_overlay_remove(ImageWindow *imd, gint id)
 773 {
 774         pixbuf_renderer_overlay_remove((PixbufRenderer *)imd->pr, id);
 775 }
 776
 777 static void image_osd_icon_show(OverlayStateData *osd, ImageOSDFlag flag)
 778 {
 779         GdkPixbuf *pixbuf;
 780
 781         if (osd->icon_id[flag]) return;
 782
 783         pixbuf = image_osd_icon_pixbuf(flag);
 784         if (!pixbuf) return;
 785
 786         osd->icon_id[flag] = image_overlay_add(osd->imd, pixbuf,
 787                                                osd_icons[flag].x, osd_icons[flag].y,
 788                                                OVL_RELATIVE);
 789 }
 790
 791 static void image_osd_icon_hide(OverlayStateData *osd, ImageOSDFlag flag)
 792 {
 793         if (osd->icon_id[flag])
 794                 {
 795                 image_overlay_remove(osd->imd, osd->icon_id[flag]);
 796                 osd->icon_id[flag] = 0;
 797                 }
 798 }
 799
 800 static void image_osd_icons_reset_time(OverlayStateData *osd)
 801 {
 802         gint i;
 803
 804         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 805                 {
 806                 if (osd_icons[i].reset)
 807                         {
 808                         osd->icon_time[i] = 0;
 809                         }
 810                 }
 811 }
 812
 813 static void image_osd_icons_update(OverlayStateData *osd)
 814 {
 815         gint i;
 816
 817         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 818                 {
 819                 if (osd->icon_time[i] > 0)
 820                         {
 821                         image_osd_icon_show(osd, i);
 822                         }
 823                 else
 824                         {
 825                         image_osd_icon_hide(osd, i);
 826                         }
 827                 }
 828 }
 829
 830 static void image_osd_icons_hide(OverlayStateData *osd)
 831 {
 832         gint i;
 833
 834         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 835                 {
 836                 image_osd_icon_hide(osd, i);
 837                 }
 838 }
 839
 840 static void image_osd_info_show(OverlayStateData *osd, GdkPixbuf *pixbuf)
 841 {
 842         if (osd->ovl_info == 0)
 843                 {
 844                 osd->ovl_info = image_overlay_add(osd->imd, pixbuf, osd->x, osd->y, OVL_RELATIVE);
 845                 }
 846         else
 847                 {
 848                 image_overlay_set(osd->imd, osd->ovl_info, pixbuf, osd->x, osd->y);
 849                 }
 850 }
 851
 852 static void image_osd_info_hide(OverlayStateData *osd)
 853 {
 854         if (osd->ovl_info == 0) return;
 855
 856         image_overlay_remove(osd->imd, osd->ovl_info);
 857         osd->ovl_info = 0;
 858 }
 859
 860 static gboolean image_osd_update_cb(gpointer data)
 861 {
 862         OverlayStateData *osd = data;
 863
 864         if (osd->show & OSD_SHOW_INFO)
 865                 {
 866                 /* redraw when the image was changed,
 867                    with histogram we have to redraw also when loading is finished */
 868                 if (osd->changed_states & IMAGE_STATE_IMAGE ||
 869                     (osd->changed_states & IMAGE_STATE_LOADING && osd->show & OSD_SHOW_HISTOGRAM) ||
 870                     osd->notify & NOTIFY_HISTMAP)
 871                         {
 872                         GdkPixbuf *pixbuf;
 873
 874                         pixbuf = image_osd_info_render(osd);
 875                         if (pixbuf)
 876                                 {
 877                                 image_osd_info_show(osd, pixbuf);
 878                                 g_object_unref(pixbuf);
 879                                 }
 880                         else
 881                                 {
 882                                 image_osd_info_hide(osd);
 883                                 }
 884                         }
 885                 }
 886         else
 887                 {
 888                 image_osd_info_hide(osd);
 889                 }
 890
 891         if (osd->show & OSD_SHOW_STATUS)
 892                 {
 893                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 894                         image_osd_icons_reset_time(osd);
 895
 896                 if (osd->changed_states & IMAGE_STATE_COLOR_ADJ)
 897                         {
 898                         osd->icon_time[IMAGE_OSD_COLOR] = IMAGE_OSD_DEFAULT_DURATION + 1;
 899                         image_osd_timer_schedule(osd);
 900                         }
 901
 902                 if (osd->changed_states & IMAGE_STATE_ROTATE_AUTO)
 903                         {
 904                         gint n = 0;
 905
 906                         if (osd->imd->state & IMAGE_STATE_ROTATE_AUTO)
 907                                 {
 908                                 n = 1;
 909                                 if (!osd->imd->cm) n += IMAGE_OSD_DEFAULT_DURATION;
 910                                 }
 911
 912                         osd->icon_time[IMAGE_OSD_ROTATE_AUTO] = n;
 913                         image_osd_timer_schedule(osd);
 914                         }
 915
 916                 image_osd_icons_update(osd);
 917                 }
 918         else
 919                 {
 920                 image_osd_icons_hide(osd);
 921                 }
 922
 923         osd->changed_states = IMAGE_STATE_NONE;
 924         osd->notify = 0;
 925         osd->idle_id = 0;
 926         return FALSE;
 927 }
 928
 929 static void image_osd_update_schedule(OverlayStateData *osd, gboolean force)
 930 {
 931         if (force) osd->changed_states |= IMAGE_STATE_IMAGE;
 932
 933         if (!osd->idle_id)
 934                 {
 935                 osd->idle_id = g_idle_add_full(G_PRIORITY_HIGH, image_osd_update_cb, osd, NULL);
 936                 }
 937 }
 938
 939 void image_osd_update(ImageWindow *imd)
 940 {
 941         OverlayStateData *osd = image_get_osd_data(imd);
 942
 943         if (!osd) return;
 944
 945         image_osd_update_schedule(osd, TRUE);
 946 }
 947
 948 static gboolean image_osd_timer_cb(gpointer data)
 949 {
 950         OverlayStateData *osd = data;
 951         gboolean done = TRUE;
 952         gboolean changed = FALSE;
 953         gint i;
 954
 955         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 956                 {
 957                 if (osd->icon_time[i] > 1)
 958                         {
 959                         osd->icon_time[i]--;
 960                         if (osd->icon_time[i] < 2)
 961                                 {
 962                                 osd->icon_time[i] = 0;
 963                                 changed = TRUE;
 964                                 }
 965                         else
 966                                 {
 967                                 done = FALSE;
 968                                 }
 969                         }
 970                 }
 971
 972         if (changed) image_osd_update_schedule(osd, FALSE);
 973
 974         if (done)
 975                 {
 976                 osd->timer_id = 0;
 977                 return FALSE;
 978                 }
 979
 980         return TRUE;
 981 }
 982
 983 static void image_osd_timer_schedule(OverlayStateData *osd)
 984 {
 985         if (!osd->timer_id)
 986                 {
 987                 osd->timer_id = g_timeout_add(100, image_osd_timer_cb, osd);
 988                 }
 989 }
 990
 991 static void image_osd_state_cb(ImageWindow *imd, ImageState state, gpointer data)
 992 {
 993         OverlayStateData *osd = data;
 994
 995         osd->changed_states |= state;
 996         image_osd_update_schedule(osd, FALSE);
 997 }
 998
 999 static void image_osd_notify_cb(FileData *fd, NotifyType type, gpointer data)
1000 {
1001         OverlayStateData *osd = data;
1002
1003         if ((type & (NOTIFY_HISTMAP)) && osd->imd && fd == osd->imd->image_fd)
1004                 {
1005                 DEBUG_1("Notify osd: %s %04x", fd->path, type);
1006                 osd->notify |= type;
1007                 image_osd_update_schedule(osd, FALSE);
1008                 }
1009 }
1010
1011
1012 static void image_osd_free(OverlayStateData *osd)
1013 {
1014         if (!osd) return;
1015
1016         if (osd->idle_id) g_source_remove(osd->idle_id);
1017         if (osd->timer_id) g_source_remove(osd->timer_id);
1018
1019         file_data_unregister_notify_func(image_osd_notify_cb, osd);
1020
1021         if (osd->imd)
1022                 {
1023                 image_set_osd_data(osd->imd, NULL);
1024                 g_signal_handler_disconnect(osd->imd->pr, osd->destroy_id);
1025
1026                 image_set_state_func(osd->imd, NULL, NULL);
1027
1028                 image_osd_info_hide(osd);
1029                 image_osd_icons_hide(osd);
1030                 }
1031
1032         if (osd->histogram) histogram_free(osd->histogram);
1033
1034         g_free(osd);
1035 }
1036
1037 #if 0
1038 static void image_osd_remove(ImageWindow *imd)
1039 {
1040         OverlayStateData *osd = image_get_osd_data(imd);
1041
1042         if (osd) image_osd_free(osd);
1043 }
1044 #endif
1045
1046 static void image_osd_destroy_cb(GtkWidget *widget, gpointer data)
1047 {
1048         OverlayStateData *osd = data;
1049
1050         osd->imd = NULL;
1051         image_osd_free(osd);
1052 }
1053
1054 static void image_osd_enable(ImageWindow *imd, OsdShowFlags show)
1055 {
1056         OverlayStateData *osd = image_get_osd_data(imd);
1057
1058         if (!osd)
1059                 {
1060                 osd = g_new0(OverlayStateData, 1);
1061                 osd->imd = imd;
1062                 osd->show = OSD_SHOW_NOTHING;
1063                 osd->x = options->image_overlay.x;
1064                 osd->y = options->image_overlay.y;
1065
1066                 osd->histogram = histogram_new();
1067
1068                 osd->destroy_id = g_signal_connect(G_OBJECT(imd->pr), "destroy",
1069                                                    G_CALLBACK(image_osd_destroy_cb), osd);
1070                 image_set_osd_data(imd, osd);
1071
1072                 image_set_state_func(osd->imd, image_osd_state_cb, osd);
1073                 file_data_register_notify_func(image_osd_notify_cb, osd, NOTIFY_PRIORITY_LOW);
1074                 }
1075
1076         if (show & OSD_SHOW_STATUS)
1077                 image_osd_icon(imd, IMAGE_OSD_ICON, -1);
1078
1079         if (show != osd->show)
1080                 image_osd_update_schedule(osd, TRUE);
1081
1082         osd->show = show;
1083 }
1084
1085 void image_osd_set(ImageWindow *imd, OsdShowFlags show)
1086 {
1087         if (!imd) return;
1088
1089         image_osd_enable(imd, show);
1090 }
1091
1092 OsdShowFlags image_osd_get(ImageWindow *imd)
1093 {
1094         OverlayStateData *osd = image_get_osd_data(imd);
1095
1096         return osd ? osd->show : OSD_SHOW_NOTHING;
1097 }
1098
1099 Histogram *image_osd_get_histogram(ImageWindow *imd)
1100 {
1101         OverlayStateData *osd = image_get_osd_data(imd);
1102
1103         return osd ? osd->histogram : NULL;
1104 }
1105
1106 void image_osd_copy_status(ImageWindow *src, ImageWindow *dest)
1107 {
1108         Histogram *h_src, *h_dest;
1109         image_osd_set(dest, image_osd_get(src));
1110
1111         h_src = image_osd_get_histogram(src);
1112         h_dest = image_osd_get_histogram(dest);
1113
1114         h_dest->histogram_mode = h_src->histogram_mode;
1115         h_dest->histogram_channel = h_src->histogram_channel;
1116
1117 }
1118
1119 /* duration:
1120     0 = hide
1121     1 = show
1122    2+ = show for duration tenths of a second
1123    -1 = use default duration
1124  */
1125 void image_osd_icon(ImageWindow *imd, ImageOSDFlag flag, gint duration)
1126 {
1127         OverlayStateData *osd = image_get_osd_data(imd);
1128
1129         if (!osd) return;
1130
1131         if (flag >= IMAGE_OSD_COUNT) return;
1132         if (duration < 0) duration = IMAGE_OSD_DEFAULT_DURATION;
1133         if (duration > 1) duration += 1;
1134
1135         osd->icon_time[flag] = duration;
1136
1137         image_osd_update_schedule(osd, FALSE);
1138         image_osd_timer_schedule(osd);
1139 }
1140 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */