src/image-overlay.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2009 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
  41         Histogram *histogram;
  42
  43         OsdShowFlags show;
  44
  45         gint ovl_info;
  46
  47         gint x;
  48         gint y;
  49
  50         gint icon_time[IMAGE_OSD_COUNT];
  51         gint icon_id[IMAGE_OSD_COUNT];
  52
  53         gint idle_id;
  54         gint timer_id;
  55         gulong destroy_id;
  56 };
  57
  58
  59 typedef struct _OSDIcon OSDIcon;
  60 struct _OSDIcon {
  61         gint reset;     /* reset on new image */
  62         gint x;         /* x, y offset */
  63         gint y;
  64         gchar *key;     /* inline pixbuf */
  65 };
  66
  67 static OSDIcon osd_icons[] = {
  68         {  TRUE,   0,   0, NULL },                      /* none */
  69         {  TRUE, -10, -10, NULL },                      /* auto rotated */
  70         {  TRUE, -10, -10, NULL },                      /* user rotated */
  71         {  TRUE, -40, -10, NULL },                      /* color embedded */
  72         {  TRUE, -70, -10, NULL },                      /* first image */
  73         {  TRUE, -70, -10, NULL },                      /* last image */
  74         { FALSE, -70, -10, NULL },                      /* osd enabled */
  75         { FALSE, 0, 0, NULL }
  76 };
  77
  78 #define OSD_DATA "overlay-data"
  79
  80 #define IMAGE_OSD_DEFAULT_DURATION 30
  81
  82 #define HISTOGRAM_HEIGHT 140
  83 #define HISTOGRAM_WIDTH  256
  84
  85 static void image_osd_timer_schedule(OverlayStateData *osd);
  86
  87 void set_image_overlay_template_string(gchar **template_string, const gchar *value)
  88 {
  89         g_assert(template_string);
  90
  91         g_free(*template_string);
  92         *template_string = g_strdup(value);
  93 }
  94
  95
  96 void set_default_image_overlay_template_string(gchar **template_string)
  97 {
  98         set_image_overlay_template_string(template_string, DEFAULT_OVERLAY_INFO);
  99 }
 100
 101 static OverlayStateData *image_get_osd_data(ImageWindow *imd)
 102 {
 103         OverlayStateData *osd;
 104
 105         if (!imd) return NULL;
 106
 107         g_assert(imd->pr);
 108
 109         osd = g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA");
 110         return osd;
 111 }
 112
 113 static void image_set_osd_data(ImageWindow *imd, OverlayStateData *osd)
 114 {
 115         g_assert(imd);
 116         g_assert(imd->pr);
 117         g_object_set_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA", osd);
 118 }
 119
 120 /*
 121  *----------------------------------------------------------------------------
 122  * image histogram
 123  *----------------------------------------------------------------------------
 124  */
 125
 126
 127 void image_osd_histogram_chan_toggle(ImageWindow *imd)
 128 {
 129         OverlayStateData *osd = image_get_osd_data(imd);
 130
 131         if (!osd || !osd->histogram) return;
 132
 133         histogram_set_channel(osd->histogram, (histogram_get_channel(osd->histogram) +1)%HCHAN_COUNT);
 134         image_osd_update(imd);
 135 }
 136
 137 void image_osd_histogram_log_toggle(ImageWindow *imd)
 138 {
 139         OverlayStateData *osd = image_get_osd_data(imd);
 140
 141         if (!osd || !osd->histogram) return;
 142
 143         histogram_set_mode(osd->histogram, !histogram_get_mode(osd->histogram));
 144         image_osd_update(imd);
 145 }
 146
 147 void image_osd_toggle(ImageWindow *imd)
 148 {
 149         OverlayStateData *osd;
 150
 151         if (!imd) return;
 152
 153         osd = image_get_osd_data(imd);
 154         if (!osd)
 155                 {
 156                 image_osd_set(imd, OSD_SHOW_INFO | OSD_SHOW_STATUS);
 157                 return;
 158                 }
 159
 160         if (osd->show != OSD_SHOW_NOTHING)
 161                 {
 162                 if (osd->show & OSD_SHOW_HISTOGRAM)
 163                         {
 164                         image_osd_set(imd, OSD_SHOW_NOTHING);
 165                         }
 166                 else
 167                         {
 168                         image_osd_set(imd, osd->show | OSD_SHOW_HISTOGRAM);
 169                         }
 170                 }
 171 }
 172
 173 static gchar *keywords_to_string(FileData *fd)
 174 {
 175         GList *keywords;
 176         GString *kwstr = NULL;
 177         gchar *ret = NULL;
 178
 179         g_assert(fd);
 180
 181         keywords = metadata_read_list(fd, KEYWORD_KEY);
 182
 183         if (keywords)
 184                 {
 185                 GList *work = keywords;
 186
 187                 while (work)
 188                         {
 189                         gchar *kw = work->data;
 190                         work = work->next;
 191
 192                         if (!kw) continue;
 193                         if (!kwstr)
 194                                 kwstr = g_string_new("");
 195                         else
 196                                 g_string_append(kwstr, ", ");
 197
 198                         g_string_append(kwstr, kw);
 199                         }
 200                 string_list_free(keywords);
 201                 }
 202
 203         if (kwstr)
 204                 {
 205                 ret = kwstr->str;
 206                 g_string_free(kwstr, FALSE);
 207                 }
 208
 209         return ret;
 210 }
 211
 212 static gchar *image_osd_mkinfo(const gchar *str, ImageWindow *imd, GHashTable *vars)
 213 {
 214         gchar delim = '%', imp = '|', sep[] = " - ";
 215         gchar *start, *end;
 216         guint pos, prev;
 217         gboolean want_separator = FALSE;
 218         gchar *name, *data;
 219         GString *new;
 220         gchar *ret;
 221
 222         if (!str || !*str) return g_strdup("");
 223
 224         new = g_string_new(str);
 225
 226         prev = 0;
 227
 228         while (TRUE)
 229                 {
 230                 guint limit = 0;
 231                 gchar *trunc = NULL;
 232                 gchar *limpos = NULL;
 233                 gchar *extra = NULL;
 234                 gchar *extrapos = NULL;
 235                 gchar *p;
 236
 237                 start = strchr(new->str, delim);
 238                 if (!start)
 239                         break;
 240                 end = strchr(start+1, delim);
 241                 if (!end)
 242                         break;
 243
 244                 /* Search for optionnal modifiers
 245                  * %name:99:extra% -> name = "name", limit=99, extra = "extra"
 246                  */
 247                 for (p = start + 1; p < end; p++)
 248                         {
 249                         if (p[0] == ':')
 250                                 {
 251                                 if (g_ascii_isdigit(p[1]) && !limpos)
 252                                         {
 253                                         limpos = p + 1;
 254                                         if (!trunc) trunc = p;
 255                                         }
 256                                 else
 257                                         {
 258                                         extrapos = p + 1;
 259                                         if (!trunc) trunc = p;
 260                                         break;
 261                                         }
 262                                 }
 263                         }
 264
 265                 if (limpos)
 266                         limit = (guint) atoi(limpos);
 267
 268                 if (extrapos)
 269                         extra = g_strndup(extrapos, end - extrapos);
 270
 271                 name = g_strndup(start+1, (trunc ? trunc : end)-start-1);
 272                 pos = start - new->str;
 273                 data = NULL;
 274
 275                 if (strcmp(name, "keywords") == 0)
 276                         {
 277                         data = keywords_to_string(imd->image_fd);
 278                         }
 279                 else if (strcmp(name, "comment") == 0)
 280                         {
 281                         data = metadata_read_string(imd->image_fd, COMMENT_KEY);
 282                         }
 283                 else
 284                         {
 285                         /*
 286                            keywords and comment can't be read between exif_read_fd and exif_free_fd calls
 287                            because fd->exif does not count references
 288                            on the other hand, it is OK to call it in the loop because it is cached
 289                         */
 290
 291                         ExifData *exif;
 292                         exif = exif_read_fd(imd->image_fd);
 293
 294                         data = g_strdup(g_hash_table_lookup(vars, name));
 295                         if (data && strcmp(name, "zoom") == 0) imd->overlay_show_zoom = TRUE;
 296                         if (!data && exif)
 297                                 data = exif_get_data_as_text(exif, name);
 298                         exif_free_fd(imd->image_fd, exif);
 299                         }
 300
 301                 if (data && *data && limit > 0 && strlen(data) > limit + 3)
 302                         {
 303                         gchar *new_data = g_strdup_printf("%-*.*s...", limit, limit, data);
 304                         g_free(data);
 305                         data = new_data;
 306                         }
 307
 308                 if (data)
 309                         {
 310                         /* Since we use pango markup to display, we need to escape here */
 311                         gchar *escaped = g_markup_escape_text(data, -1);
 312                         g_free(data);
 313                         data = escaped;
 314                         }
 315
 316                 if (extra)
 317                         {
 318                         if (data && *data)
 319                                 {
 320                                 /* Display data between left and right parts of extra string
 321                                  * the data is expressed by a '*' character. A '*' may be escaped
 322                                  * by a \. You should escape all '*' characters, do not rely on the
 323                                  * current implementation which only replaces the first unescaped '*'.
 324                                  * If no "*" is present, the extra string is just appended to data string.
 325                                  * Pango mark up is accepted in left and right parts.
 326                                  * Any \n is replaced by a newline
 327                                  * Examples:
 328                                  * "<i>*</i>\n" -> data is displayed in italics ended with a newline
 329                                  * "\n"         -> ended with newline
 330                                  * "ISO *"      -> prefix data with "ISO " (ie. "ISO 100")
 331                                  * "\**\*"      -> prefix data with a star, and append a star (ie. "*100*")
 332                                  * "\\*"        -> prefix data with an anti slash (ie "\100")
 333                                  * "Collection <b>*</b>\n" -> display data in bold prefixed by "Collection " and a newline is appended
 334                                  *
 335                                  * FIXME: using background / foreground colors lead to weird results.
 336                                  */
 337                                 gchar *new_data;
 338                                 gchar *left = NULL;
 339                                 gchar *right = extra;
 340                                 gchar *p;
 341                                 guint len = strlen(extra);
 342
 343                                 /* Search for left and right parts and unescape characters */
 344                                 for (p = extra; *p; p++, len--)
 345                                         if (p[0] == '\\')
 346                                                 {
 347                                                 if (p[1] == 'n')
 348                                                         {
 349                                                         memmove(p+1, p+2, --len);
 350                                                         p[0] = '\n';
 351                                                         }
 352                                                 else if (p[1] != '\0')
 353                                                         memmove(p, p+1, len--); // includes \0
 354                                                 }
 355                                         else if (p[0] == '*' && !left)
 356                                                 {
 357                                                 right = p + 1;
 358                                                 left = extra;
 359                                                 }
 360
 361                                 if (left) right[-1] = '\0';
 362
 363                                 new_data = g_strdup_printf("%s%s%s", left ? left : "", data, right);
 364                                 g_free(data);
 365                                 data = new_data;
 366                                 }
 367                         g_free(extra);
 368                         }
 369
 370                 g_string_erase(new, pos, end-start+1);
 371                 if (data && *data)
 372                         {
 373                         if (want_separator)
 374                                 {
 375                                 /* insert separator */
 376                                 g_string_insert(new, pos, sep);
 377                                 pos += strlen(sep);
 378                                 want_separator = FALSE;
 379                                 }
 380
 381                         g_string_insert(new, pos, data);
 382                         pos += strlen(data);
 383                 }
 384
 385                 if (pos-prev >= 1 && new->str[pos] == imp)
 386                         {
 387                         /* pipe character is replaced by a separator, delete it
 388                          * and raise a flag if needed */
 389                         g_string_erase(new, pos--, 1);
 390                         want_separator |= (data && *data);
 391                         }
 392
 393                 if (new->str[pos] == '\n') want_separator = FALSE;
 394
 395                 prev = pos - 1;
 396
 397                 g_free(name);
 398                 g_free(data);
 399                 }
 400
 401         /* search and destroy empty lines */
 402         end = new->str;
 403         while ((start = strchr(end, '\n')))
 404                 {
 405                 end = start;
 406                 while (*++(end) == '\n')
 407                         ;
 408                 g_string_erase(new, start-new->str, end-start-1);
 409                 }
 410
 411         g_strchomp(new->str);
 412
 413         ret = new->str;
 414         g_string_free(new, FALSE);
 415
 416         return ret;
 417 }
 418
 419 typedef enum {
 420         OSDT_NONE       = 0,
 421         OSDT_FREE       = 1 << 0,
 422         OSDT_NO_DUP     = 1 << 1
 423 } OsdTemplateFlags;
 424
 425 static void osd_template_insert(GHashTable *vars, gchar *keyword, gchar *value, OsdTemplateFlags flags)
 426 {
 427         if (!value)
 428                 {
 429                 g_hash_table_insert(vars, keyword, g_strdup(""));
 430                 return;
 431                 }
 432
 433         if (flags & OSDT_NO_DUP)
 434                 {
 435                 g_hash_table_insert(vars, keyword, value);
 436                 return;
 437                 }
 438         else
 439                 {
 440                 g_hash_table_insert(vars, keyword, g_strdup(value));
 441                 }
 442
 443         if (flags & OSDT_FREE) g_free((gpointer) value);
 444 }
 445
 446 static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
 447 {
 448         GdkPixbuf *pixbuf = NULL;
 449         gint width, height;
 450         PangoLayout *layout;
 451         const gchar *name;
 452         gchar *text;
 453         GdkPixbuf *imgpixbuf = NULL;
 454         gboolean with_hist;
 455         ImageWindow *imd = osd->imd;
 456         FileData *fd = image_get_fd(imd);
 457
 458         if (!fd) return NULL;
 459
 460         name = image_get_name(imd);
 461         if (name)
 462                 {
 463                 gint n, t;
 464                 CollectionData *cd;
 465                 CollectInfo *info;
 466                 GHashTable *vars;
 467
 468                 vars = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_free);
 469
 470                 cd = image_get_collection(imd, &info);
 471                 if (cd)
 472                         {
 473                         t = g_list_length(cd->list);
 474                         n = g_list_index(cd->list, info) + 1;
 475                         if (cd->name)
 476                                 {
 477                                 if (file_extension_match(cd->name, GQ_COLLECTION_EXT))
 478                                         osd_template_insert(vars, "collection", remove_extension_from_path(cd->name), OSDT_FREE);
 479                                 else
 480                                         osd_template_insert(vars, "collection", cd->name, OSDT_NONE);
 481                                 }
 482                         else
 483                                 {
 484                                 osd_template_insert(vars, "collection", _("Untitled"), OSDT_NONE);
 485                                 }
 486                         }
 487                 else
 488                         {
 489                         LayoutWindow *lw = layout_find_by_image(imd);
 490                         if (lw)
 491                                 {
 492                                 if (lw->slideshow)
 493                                         {
 494                                         n = g_list_length(lw->slideshow->list_done);
 495                                         t = n + g_list_length(lw->slideshow->list);
 496                                         if (n == 0) n = t;
 497                                         }
 498                                 else
 499                                         {
 500                                         t = layout_list_count(lw, NULL);
 501                                         n = layout_list_get_index(lw, image_get_fd(lw->image)) + 1;
 502                                         }
 503                                 }
 504                         else if (view_window_find_image(imd, &n, &t))
 505                                 {
 506                                 n++;
 507                                 }
 508                         else
 509                                 {
 510                                 t = 1;
 511                                 n = 1;
 512                                 }
 513
 514                         if (n < 1) n = 1;
 515                         if (t < 1) t = 1;
 516
 517                         osd_template_insert(vars, "collection", NULL, OSDT_NONE);
 518                         }
 519
 520                 osd_template_insert(vars, "number", g_strdup_printf("%d", n), OSDT_NO_DUP);
 521                 osd_template_insert(vars, "total", g_strdup_printf("%d", t), OSDT_NO_DUP);
 522                 osd_template_insert(vars, "name", (gchar *) name, OSDT_NONE);
 523                 osd_template_insert(vars, "date", imd->image_fd ? ((gchar *) text_from_time(imd->image_fd->date)) : "", OSDT_NONE);
 524                 osd_template_insert(vars, "size", imd->image_fd ? (text_from_size_abrev(imd->image_fd->size)) : g_strdup(""), OSDT_FREE);
 525                 osd_template_insert(vars, "zoom", image_zoom_get_as_text(imd), OSDT_FREE);
 526
 527                 if (!imd->unknown)
 528                         {
 529                         gint w, h;
 530                         GdkPixbuf *load_pixbuf = image_loader_get_pixbuf(imd->il);
 531
 532                         if (imd->delay_flip &&
 533                             imd->il && load_pixbuf &&
 534                             image_get_pixbuf(imd) != load_pixbuf)
 535                                 {
 536                                 w = gdk_pixbuf_get_width(load_pixbuf);
 537                                 h = gdk_pixbuf_get_height(load_pixbuf);
 538                                 imgpixbuf = load_pixbuf;
 539                                 }
 540                         else
 541                                 {
 542                                 image_get_image_size(imd, &w, &h);
 543                                 imgpixbuf = (PIXBUF_RENDERER(imd->pr))->pixbuf;
 544                                 }
 545
 546
 547                         osd_template_insert(vars, "width", g_strdup_printf("%d", w), OSDT_NO_DUP);
 548                         osd_template_insert(vars, "height", g_strdup_printf("%d", h), OSDT_NO_DUP);
 549                         osd_template_insert(vars, "res", g_strdup_printf("%d × %d", w, h), OSDT_FREE);
 550                         }
 551                 else
 552                         {
 553                         osd_template_insert(vars, "width", NULL, OSDT_NONE);
 554                         osd_template_insert(vars, "height", NULL, OSDT_NONE);
 555                         osd_template_insert(vars, "res", NULL, OSDT_NONE);
 556                         }
 557
 558                 text = image_osd_mkinfo(options->image_overlay.common.template_string, imd, vars);
 559                 g_hash_table_destroy(vars);
 560
 561         } else {
 562                 /* When does this occur ?? */
 563                 text = g_markup_escape_text(_("Untitled"), -1);
 564         }
 565
 566         with_hist = (imgpixbuf && (osd->show & OSD_SHOW_HISTOGRAM) && osd->histogram && (!imd->il || image_loader_get_is_done(imd->il)));
 567
 568         {
 569                 gint active_marks = 0;
 570                 gint mark;
 571                 gchar *text2;
 572
 573                 for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 574                         {
 575                         active_marks += file_data_get_mark(fd, mark);
 576                         }
 577
 578                 if (active_marks > 0)
 579                         {
 580                         GString *buf = g_string_sized_new(FILEDATA_MARKS_SIZE * 2);
 581
 582                         for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 583                                 {
 584                                 g_string_append_printf(buf, file_data_get_mark(fd, mark) ? " <span background='#FF00FF'>%c</span>" : " %c", '1' + mark);
 585                                 }
 586
 587                         if (*text)
 588                                 text2 = g_strdup_printf("%s\n%s", text, buf->str);
 589                         else
 590                                 text2 = g_strdup(buf->str);
 591                         g_string_free(buf, TRUE);
 592                         g_free(text);
 593                         text = text2;
 594                         }
 595
 596                 if (with_hist)
 597                         {
 598                         gchar *escaped_histogram_label = g_markup_escape_text(histogram_label(osd->histogram), -1);
 599                         if (*text)
 600                                 text2 = g_strdup_printf("%s\n%s", text, escaped_histogram_label);
 601                         else
 602                                 text2 = g_strdup(escaped_histogram_label);
 603                         g_free(escaped_histogram_label);
 604                         g_free(text);
 605                         text = text2;
 606                         }
 607         }
 608
 609         layout = gtk_widget_create_pango_layout(imd->pr, NULL);
 610         pango_layout_set_markup(layout, text, -1);
 611         g_free(text);
 612
 613         pango_layout_get_pixel_size(layout, &width, &height);
 614         /* with empty text width is set to 0, but not height) */
 615         if (width == 0)
 616                 height = 0;
 617         else if (height == 0)
 618                 width = 0;
 619         if (width > 0) width += 10;
 620         if (height > 0) height += 10;
 621
 622         if (with_hist)
 623                 {
 624                 histogram_read(osd->histogram, imgpixbuf);
 625                 if (width < HISTOGRAM_WIDTH + 10) width = HISTOGRAM_WIDTH + 10;
 626                 height += HISTOGRAM_HEIGHT + 5;
 627                 }
 628
 629         if (width > 0 && height > 0)
 630                 {
 631                 /* TODO: make osd color configurable --Zas */
 632                 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
 633                 pixbuf_set_rect_fill(pixbuf, 3, 3, width-6, height-6, 240, 240, 240, 210);
 634                 pixbuf_set_rect(pixbuf, 0, 0, width, height, 240, 240, 240, 80, 1, 1, 1, 1);
 635                 pixbuf_set_rect(pixbuf, 1, 1, width-2, height-2, 240, 240, 240, 130, 1, 1, 1, 1);
 636                 pixbuf_set_rect(pixbuf, 2, 2, width-4, height-4, 240, 240, 240, 180, 1, 1, 1, 1);
 637                 pixbuf_pixel_set(pixbuf, 0, 0, 0, 0, 0, 0);
 638                 pixbuf_pixel_set(pixbuf, width - 1, 0, 0, 0, 0, 0);
 639                 pixbuf_pixel_set(pixbuf, 0, height - 1, 0, 0, 0, 0);
 640                 pixbuf_pixel_set(pixbuf, width - 1, height - 1, 0, 0, 0, 0);
 641
 642                 if (with_hist)
 643                         {
 644                         gint x = 5;
 645                         gint y = height - HISTOGRAM_HEIGHT - 5;
 646                         gint w = width - 10;
 647                         float xoffset = 0;
 648                         gint subdiv = 5;
 649                         gint c = 160;
 650                         gint alpha = 250;
 651                         gint i;
 652                         float add = w / (float)subdiv;
 653
 654                         for (i = 0; i < subdiv; i++)
 655                                 {
 656                                 gint d = (i > 0 ? 0 : 1);
 657
 658                                 pixbuf_set_rect(pixbuf, x + xoffset + 0.5, y, add + d + 0.5, HISTOGRAM_HEIGHT, c, c, c, alpha, d, 1, 1, 1);
 659                                 xoffset += add+d;
 660                                 }
 661
 662                         histogram_draw(osd->histogram, pixbuf, x, y, w, HISTOGRAM_HEIGHT);
 663                         }
 664                 pixbuf_draw_layout(pixbuf, layout, imd->pr, 5, 5, 0, 0, 0, 255);
 665         }
 666
 667         g_object_unref(G_OBJECT(layout));
 668
 669         return pixbuf;
 670 }
 671
 672 static GdkPixbuf *image_osd_icon_pixbuf(ImageOSDFlag flag)
 673 {
 674         static GdkPixbuf **icons = NULL;
 675         GdkPixbuf *icon = NULL;
 676
 677         if (!icons) icons = g_new0(GdkPixbuf *, IMAGE_OSD_COUNT);
 678         if (icons[flag]) return icons[flag];
 679
 680         if (osd_icons[flag].key)
 681                 {
 682                 icon = pixbuf_inline(osd_icons[flag].key);
 683                 }
 684
 685         if (!icon)
 686                 {
 687                 icon = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 24, 24);
 688                 pixbuf_set_rect_fill(icon, 1, 1, 22, 22, 255, 255, 255, 200);
 689                 pixbuf_set_rect(icon, 0, 0, 24, 24, 0, 0, 0, 128, 1, 1, 1, 1);
 690                 switch (flag)
 691                         {
 692                         case IMAGE_OSD_ROTATE_AUTO:
 693                                 pixbuf_set_rect(icon, 3, 8, 11, 12,
 694                                                 0, 0, 0, 255,
 695                                                 3, 0, 3, 0);
 696                                 pixbuf_draw_triangle(icon, 14, 3, 6, 12,
 697                                                      20, 9, 14, 15, 14, 3,
 698                                                      0, 0, 0, 255);
 699                                 break;
 700                         case IMAGE_OSD_ROTATE_USER:
 701                                 break;
 702                         case IMAGE_OSD_COLOR:
 703                                 pixbuf_set_rect_fill(icon, 3, 3, 18, 6, 200, 0, 0, 255);
 704                                 pixbuf_set_rect_fill(icon, 3, 9, 18, 6, 0, 200, 0, 255);
 705                                 pixbuf_set_rect_fill(icon, 3, 15, 18, 6, 0, 0, 200, 255);
 706                                 break;
 707                         case IMAGE_OSD_FIRST:
 708                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 3, 0);
 709                                 pixbuf_draw_triangle(icon, 6, 5, 12, 6,
 710                                                      12, 5, 18, 11, 6, 11,
 711                                                      0, 0, 0, 255);
 712                                 break;
 713                         case IMAGE_OSD_LAST:
 714                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 0, 3);
 715                                 pixbuf_draw_triangle(icon, 6, 12, 12, 6,
 716                                                      12, 18, 6, 12, 18, 12,
 717                                                      0, 0, 0, 255);
 718                                 break;
 719                         case IMAGE_OSD_ICON:
 720                                 pixbuf_set_rect_fill(icon, 11, 3, 3, 12, 0, 0, 0, 255);
 721                                 pixbuf_set_rect_fill(icon, 11, 17, 3, 3, 0, 0, 0, 255);
 722                                 break;
 723                         default:
 724                                 break;
 725                         }
 726                 }
 727
 728         icons[flag] = icon;
 729
 730         return icon;
 731 }
 732
 733 static gint image_overlay_add(ImageWindow *imd, GdkPixbuf *pixbuf, gint x, gint y,
 734                               OverlayRendererFlags flags)
 735 {
 736         return pixbuf_renderer_overlay_add((PixbufRenderer *)imd->pr, pixbuf, x, y, flags);
 737 }
 738
 739 static void image_overlay_set(ImageWindow *imd, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 740 {
 741         pixbuf_renderer_overlay_set((PixbufRenderer *)imd->pr, id, pixbuf, x, y);
 742 }
 743
 744 #if 0 /* unused for now */
 745 static gint image_overlay_get(ImageWindow *imd, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
 746 {
 747         return pixbuf_renderer_overlay_get((PixbufRenderer *)imd->pr, id, pixbuf, x, y);
 748 }
 749 #endif
 750
 751 static void image_overlay_remove(ImageWindow *imd, gint id)
 752 {
 753         pixbuf_renderer_overlay_remove((PixbufRenderer *)imd->pr, id);
 754 }
 755
 756 static void image_osd_icon_show(OverlayStateData *osd, ImageOSDFlag flag)
 757 {
 758         GdkPixbuf *pixbuf;
 759
 760         if (osd->icon_id[flag]) return;
 761
 762         pixbuf = image_osd_icon_pixbuf(flag);
 763         if (!pixbuf) return;
 764
 765         osd->icon_id[flag] = image_overlay_add(osd->imd, pixbuf,
 766                                                osd_icons[flag].x, osd_icons[flag].y,
 767                                                OVL_RELATIVE);
 768 }
 769
 770 static void image_osd_icon_hide(OverlayStateData *osd, ImageOSDFlag flag)
 771 {
 772         if (osd->icon_id[flag])
 773                 {
 774                 image_overlay_remove(osd->imd, osd->icon_id[flag]);
 775                 osd->icon_id[flag] = 0;
 776                 }
 777 }
 778
 779 static void image_osd_icons_reset_time(OverlayStateData *osd)
 780 {
 781         gint i;
 782
 783         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 784                 {
 785                 if (osd_icons[i].reset)
 786                         {
 787                         osd->icon_time[i] = 0;
 788                         }
 789                 }
 790 }
 791
 792 static void image_osd_icons_update(OverlayStateData *osd)
 793 {
 794         gint i;
 795
 796         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 797                 {
 798                 if (osd->icon_time[i] > 0)
 799                         {
 800                         image_osd_icon_show(osd, i);
 801                         }
 802                 else
 803                         {
 804                         image_osd_icon_hide(osd, i);
 805                         }
 806                 }
 807 }
 808
 809 static void image_osd_icons_hide(OverlayStateData *osd)
 810 {
 811         gint i;
 812
 813         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 814                 {
 815                 image_osd_icon_hide(osd, i);
 816                 }
 817 }
 818
 819 static void image_osd_info_show(OverlayStateData *osd, GdkPixbuf *pixbuf)
 820 {
 821         if (osd->ovl_info == 0)
 822                 {
 823                 osd->ovl_info = image_overlay_add(osd->imd, pixbuf, osd->x, osd->y, OVL_RELATIVE);
 824                 }
 825         else
 826                 {
 827                 image_overlay_set(osd->imd, osd->ovl_info, pixbuf, osd->x, osd->y);
 828                 }
 829 }
 830
 831 static void image_osd_info_hide(OverlayStateData *osd)
 832 {
 833         if (osd->ovl_info == 0) return;
 834
 835         image_overlay_remove(osd->imd, osd->ovl_info);
 836         osd->ovl_info = 0;
 837 }
 838
 839 static gint image_osd_update_cb(gpointer data)
 840 {
 841         OverlayStateData *osd = data;
 842
 843         osd->imd->overlay_show_zoom = FALSE;
 844
 845         if (osd->show & OSD_SHOW_INFO)
 846                 {
 847                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 848                         {
 849                         GdkPixbuf *pixbuf;
 850
 851                         pixbuf = image_osd_info_render(osd);
 852                         if (pixbuf)
 853                                 {
 854                                 image_osd_info_show(osd, pixbuf);
 855                                 g_object_unref(pixbuf);
 856                                 }
 857                         else
 858                                 {
 859                                 image_osd_info_hide(osd);
 860                                 }
 861                         }
 862                 }
 863         else
 864                 {
 865                 image_osd_info_hide(osd);
 866                 }
 867
 868         if (osd->show & OSD_SHOW_STATUS)
 869                 {
 870                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 871                         image_osd_icons_reset_time(osd);
 872
 873                 if (osd->changed_states & IMAGE_STATE_COLOR_ADJ)
 874                         {
 875                         osd->icon_time[IMAGE_OSD_COLOR] = IMAGE_OSD_DEFAULT_DURATION + 1;
 876                         image_osd_timer_schedule(osd);
 877                         }
 878
 879                 if (osd->changed_states & IMAGE_STATE_ROTATE_AUTO)
 880                         {
 881                         gint n = 0;
 882
 883                         if (osd->imd->state & IMAGE_STATE_ROTATE_AUTO)
 884                                 {
 885                                 n = 1;
 886                                 if (!osd->imd->cm) n += IMAGE_OSD_DEFAULT_DURATION;
 887                                 }
 888
 889                         osd->icon_time[IMAGE_OSD_ROTATE_AUTO] = n;
 890                         image_osd_timer_schedule(osd);
 891                         }
 892
 893                 image_osd_icons_update(osd);
 894                 }
 895         else
 896                 {
 897                 image_osd_icons_hide(osd);
 898                 }
 899
 900         if (osd->imd->il && image_loader_get_is_done(osd->imd->il))
 901                 osd->changed_states = IMAGE_STATE_NONE;
 902         osd->idle_id = -1;
 903         return FALSE;
 904 }
 905
 906 static void image_osd_update_schedule(OverlayStateData *osd, gint force)
 907 {
 908         if (force) osd->changed_states |= IMAGE_STATE_IMAGE;
 909
 910         if (osd->idle_id == -1)
 911                 {
 912                 osd->idle_id = g_idle_add_full(G_PRIORITY_HIGH, image_osd_update_cb, osd, NULL);
 913                 }
 914 }
 915
 916 void image_osd_update(ImageWindow *imd)
 917 {
 918         OverlayStateData *osd = image_get_osd_data(imd);
 919
 920         if (!osd) return;
 921
 922         image_osd_update_schedule(osd, TRUE);
 923 }
 924
 925 static gint image_osd_timer_cb(gpointer data)
 926 {
 927         OverlayStateData *osd = data;
 928         gint done = TRUE;
 929         gint changed = FALSE;
 930         gint i;
 931
 932         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 933                 {
 934                 if (osd->icon_time[i] > 1)
 935                         {
 936                         osd->icon_time[i]--;
 937                         if (osd->icon_time[i] < 2)
 938                                 {
 939                                 osd->icon_time[i] = 0;
 940                                 changed = TRUE;
 941                                 }
 942                         else
 943                                 {
 944                                 done = FALSE;
 945                                 }
 946                         }
 947                 }
 948
 949         if (changed) image_osd_update_schedule(osd, FALSE);
 950
 951         if (done)
 952                 {
 953                 osd->timer_id = -1;
 954                 return FALSE;
 955                 }
 956
 957         return TRUE;
 958 }
 959
 960 static void image_osd_timer_schedule(OverlayStateData *osd)
 961 {
 962         if (osd->timer_id == -1)
 963                 {
 964                 osd->timer_id = g_timeout_add(100, image_osd_timer_cb, osd);
 965                 }
 966 }
 967
 968 static void image_osd_state_cb(ImageWindow *imd, ImageState state, gpointer data)
 969 {
 970         OverlayStateData *osd = data;
 971
 972         osd->changed_states |= state;
 973         image_osd_update_schedule(osd, FALSE);
 974 }
 975
 976 static void image_osd_free(OverlayStateData *osd)
 977 {
 978         if (!osd) return;
 979
 980         if (osd->idle_id != -1) g_source_remove(osd->idle_id);
 981         if (osd->timer_id != -1) g_source_remove(osd->timer_id);
 982
 983         if (osd->imd)
 984                 {
 985                 image_set_osd_data(osd->imd, NULL);
 986                 g_signal_handler_disconnect(osd->imd->pr, osd->destroy_id);
 987
 988                 image_set_state_func(osd->imd, NULL, NULL);
 989
 990                 image_osd_info_hide(osd);
 991                 image_osd_icons_hide(osd);
 992                 }
 993
 994         if (osd->histogram) histogram_free(osd->histogram);
 995
 996         g_free(osd);
 997 }
 998
 999 static void image_osd_remove(ImageWindow *imd)
1000 {
1001         OverlayStateData *osd = image_get_osd_data(imd);
1002
1003         if (osd) image_osd_free(osd);
1004 }
1005
1006 static void image_osd_destroy_cb(GtkWidget *widget, gpointer data)
1007 {
1008         OverlayStateData *osd = data;
1009
1010         osd->imd = NULL;
1011         image_osd_free(osd);
1012 }
1013
1014 static void image_osd_enable(ImageWindow *imd, OsdShowFlags show)
1015 {
1016         OverlayStateData *osd = image_get_osd_data(imd);
1017
1018         if (!osd)
1019                 {
1020                 osd = g_new0(OverlayStateData, 1);
1021                 osd->imd = imd;
1022                 osd->idle_id = -1;
1023                 osd->timer_id = -1;
1024                 osd->show = OSD_SHOW_NOTHING;
1025                 osd->histogram = NULL;
1026                 osd->x = options->image_overlay.common.x;
1027                 osd->y = options->image_overlay.common.y;
1028
1029                 osd->destroy_id = g_signal_connect(G_OBJECT(imd->pr), "destroy",
1030                                                    G_CALLBACK(image_osd_destroy_cb), osd);
1031                 image_set_osd_data(imd, osd);
1032
1033                 image_set_state_func(osd->imd, image_osd_state_cb, osd);
1034                 }
1035
1036         if (show & OSD_SHOW_HISTOGRAM)
1037                 osd->histogram = histogram_new();
1038         else if (osd->histogram)
1039                 {
1040                 histogram_free(osd->histogram);
1041                 osd->histogram = NULL;
1042                 }
1043
1044         if (show & OSD_SHOW_STATUS)
1045                 image_osd_icon(imd, IMAGE_OSD_ICON, -1);
1046
1047         if (show != osd->show)
1048                 image_osd_update_schedule(osd, TRUE);
1049
1050         osd->show = show;
1051 }
1052
1053 void image_osd_set(ImageWindow *imd, OsdShowFlags show)
1054 {
1055         if (!imd) return;
1056
1057         if (show == OSD_SHOW_NOTHING)
1058                 {
1059                 image_osd_remove(imd);
1060                 return;
1061                 }
1062
1063         image_osd_enable(imd, show);
1064 }
1065
1066 OsdShowFlags image_osd_get(ImageWindow *imd)
1067 {
1068         OverlayStateData *osd = image_get_osd_data(imd);
1069
1070         return osd ? osd->show : OSD_SHOW_NOTHING;
1071 }
1072
1073 /* duration:
1074     0 = hide
1075     1 = show
1076    2+ = show for duration tenths of a second
1077    -1 = use default duration
1078  */
1079 void image_osd_icon(ImageWindow *imd, ImageOSDFlag flag, gint duration)
1080 {
1081         OverlayStateData *osd = image_get_osd_data(imd);
1082
1083         if (!osd) return;
1084
1085         if (flag >= IMAGE_OSD_COUNT) return;
1086         if (duration < 0) duration = IMAGE_OSD_DEFAULT_DURATION;
1087         if (duration > 1) duration += 1;
1088
1089         osd->icon_time[flag] = duration;
1090
1091         image_osd_update_schedule(osd, FALSE);
1092         image_osd_timer_schedule(osd);
1093 }
1094 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */