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