src/image-overlay.cc

   1 /*
   2  * Copyright (C) 2006 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "main.h"
  23 #include "image-overlay.h"
  24
  25 #include "filedata.h"
  26 #include "histogram.h"
  27 #include "image.h"
  28 #include "img-view.h"
  29 #include "layout.h"
  30 #include "osd.h"
  31 #include "pixbuf-renderer.h"
  32 #include "pixbuf-util.h"
  33 #include "ui-fileops.h"
  34 #include "image-load.h"
  35
  36 /*
  37  *----------------------------------------------------------------------------
  38  * image overlay
  39  *----------------------------------------------------------------------------
  40  */
  41
  42
  43 typedef struct _OverlayStateData OverlayStateData;
  44 struct _OverlayStateData {
  45         ImageWindow *imd;
  46         ImageState changed_states;
  47         NotifyType notify;
  48
  49         Histogram *histogram;
  50
  51         OsdShowFlags show;
  52         OverlayRendererFlags origin;
  53
  54         gint ovl_info;
  55
  56         gint x;
  57         gint y;
  58
  59         gint icon_time[IMAGE_OSD_COUNT];
  60         gint icon_id[IMAGE_OSD_COUNT];
  61
  62         guint idle_id; /* event source id */
  63         guint timer_id; /* event source id */
  64         gulong destroy_id;
  65 };
  66
  67
  68 typedef struct _OSDIcon OSDIcon;
  69 struct _OSDIcon {
  70         gboolean reset; /* reset on new image */
  71         gint x;         /* x, y offset */
  72         gint y;
  73         gchar *key;     /* inline pixbuf */
  74 };
  75
  76 static OSDIcon osd_icons[] = {
  77         {  TRUE,   0,   0, NULL },                      /* none */
  78         {  TRUE, -10, -10, NULL },                      /* auto rotated */
  79         {  TRUE, -10, -10, NULL },                      /* user rotated */
  80         {  TRUE, -40, -10, NULL },                      /* color embedded */
  81         {  TRUE, -70, -10, NULL },                      /* first image */
  82         {  TRUE, -70, -10, NULL },                      /* last image */
  83         { FALSE, -70, -10, NULL },                      /* osd enabled */
  84         { FALSE, 0, 0, NULL }
  85 };
  86
  87 #define OSD_DATA "overlay-data"
  88
  89 #define IMAGE_OSD_DEFAULT_DURATION 30
  90
  91 #define HISTOGRAM_HEIGHT 140
  92 #define HISTOGRAM_WIDTH  256
  93
  94 static void image_osd_timer_schedule(OverlayStateData *osd);
  95
  96 void set_image_overlay_template_string(gchar **template_string, const gchar *value)
  97 {
  98         g_assert(template_string);
  99
 100         g_free(*template_string);
 101         *template_string = g_strdup(value);
 102 }
 103
 104
 105 void set_default_image_overlay_template_string(gchar **template_string)
 106 {
 107         set_image_overlay_template_string(template_string, DEFAULT_OVERLAY_INFO);
 108 }
 109
 110 void set_image_overlay_font_string(gchar **font_string, const gchar *value)
 111 {
 112         g_assert(font_string);
 113
 114         g_free(*font_string);
 115         *font_string = g_strdup(value);
 116 }
 117
 118 static OverlayStateData *image_get_osd_data(ImageWindow *imd)
 119 {
 120         OverlayStateData *osd;
 121
 122         if (!imd) return NULL;
 123
 124         g_assert(imd->pr);
 125
 126         osd = static_cast<OverlayStateData *>(g_object_get_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA"));
 127         return osd;
 128 }
 129
 130 static void image_set_osd_data(ImageWindow *imd, OverlayStateData *osd)
 131 {
 132         g_assert(imd);
 133         g_assert(imd->pr);
 134         g_object_set_data(G_OBJECT(imd->pr), "IMAGE_OVERLAY_DATA", osd);
 135 }
 136
 137 /*
 138  *----------------------------------------------------------------------------
 139  * image histogram
 140  *----------------------------------------------------------------------------
 141  */
 142
 143
 144 void image_osd_histogram_toggle_channel(ImageWindow *imd)
 145 {
 146         OverlayStateData *osd = image_get_osd_data(imd);
 147
 148         if (!osd || !osd->histogram) return;
 149
 150         histogram_toggle_channel(osd->histogram);
 151         image_osd_update(imd);
 152 }
 153
 154 void image_osd_histogram_toggle_mode(ImageWindow *imd)
 155 {
 156         OverlayStateData *osd = image_get_osd_data(imd);
 157
 158         if (!osd || !osd->histogram) return;
 159
 160         histogram_toggle_mode(osd->histogram);
 161         image_osd_update(imd);
 162 }
 163
 164 void image_osd_histogram_set_channel(ImageWindow *imd, gint chan)
 165 {
 166         OverlayStateData *osd = image_get_osd_data(imd);
 167
 168         if (!osd || !osd->histogram) return;
 169
 170         histogram_set_channel(osd->histogram, chan);
 171         image_osd_update(imd);
 172 }
 173
 174 void image_osd_histogram_set_mode(ImageWindow *imd, gint mode)
 175 {
 176         OverlayStateData *osd = image_get_osd_data(imd);
 177
 178         if (!osd || !osd->histogram) return;
 179
 180         histogram_set_mode(osd->histogram, mode);
 181         image_osd_update(imd);
 182 }
 183
 184 gint image_osd_histogram_get_channel(ImageWindow *imd)
 185 {
 186         OverlayStateData *osd = image_get_osd_data(imd);
 187
 188         if (!osd || !osd->histogram) return HCHAN_DEFAULT;
 189
 190         return histogram_get_channel(osd->histogram);
 191 }
 192
 193 gint image_osd_histogram_get_mode(ImageWindow *imd)
 194 {
 195         OverlayStateData *osd = image_get_osd_data(imd);
 196
 197         if (!osd || !osd->histogram) return 0;
 198
 199         return histogram_get_mode(osd->histogram);
 200 }
 201
 202 void image_osd_toggle(ImageWindow *imd)
 203 {
 204         OsdShowFlags show;
 205         if (!imd) return;
 206
 207         show = image_osd_get(imd);
 208         if (show == OSD_SHOW_NOTHING)
 209                 {
 210                 image_osd_set(imd, static_cast<OsdShowFlags>(OSD_SHOW_INFO | OSD_SHOW_STATUS));
 211                 return;
 212                 }
 213         else
 214                 {
 215                 if (show & OSD_SHOW_HISTOGRAM)
 216                         {
 217                         image_osd_set(imd, OSD_SHOW_NOTHING);
 218                         }
 219                 else
 220                         {
 221                         image_osd_set(imd, static_cast<OsdShowFlags>(show | OSD_SHOW_HISTOGRAM));
 222                         }
 223                 }
 224 }
 225
 226 static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
 227 {
 228         GdkPixbuf *pixbuf = NULL;
 229         gint width, height;
 230         PangoLayout *layout;
 231         const gchar *name;
 232         gchar *text;
 233         gboolean with_hist;
 234         const HistMap *histmap = NULL;
 235         ImageWindow *imd = osd->imd;
 236         FileData *fd = image_get_fd(imd);
 237         PangoFontDescription *font_desc;
 238
 239         if (!fd) return NULL;
 240
 241         name = image_get_name(imd);
 242         if (name)
 243                 {
 244                 gint n, t;
 245                 CollectionData *cd;
 246                 CollectInfo *info;
 247                 GHashTable *vars;
 248
 249                 vars = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_free);
 250
 251                 cd = image_get_collection(imd, &info);
 252                 if (cd)
 253                         {
 254                         t = g_list_length(cd->list);
 255                         n = g_list_index(cd->list, info) + 1;
 256                         if (cd->name)
 257                                 {
 258                                 if (file_extension_match(cd->name, GQ_COLLECTION_EXT))
 259                                         osd_template_insert(vars, "collection", remove_extension_from_path(cd->name), OSDT_FREE);
 260                                 else
 261                                         osd_template_insert(vars, "collection", cd->name, OSDT_NONE);
 262                                 }
 263                         else
 264                                 {
 265                                 osd_template_insert(vars, "collection", _("Untitled"), OSDT_NONE);
 266                                 }
 267                         }
 268                 else
 269                         {
 270                         LayoutWindow *lw = layout_find_by_image(imd);
 271                         if (lw)
 272                                 {
 273                                 if (lw->slideshow)
 274                                         {
 275                                         n = g_list_length(lw->slideshow->list_done);
 276                                         t = n + g_list_length(lw->slideshow->list);
 277                                         if (n == 0) n = t;
 278                                         }
 279                                 else
 280                                         {
 281                                         t = layout_list_count(lw, NULL);
 282                                         n = layout_list_get_index(lw, image_get_fd(lw->image)) + 1;
 283                                         }
 284                                 }
 285                         else if (view_window_find_image(imd, &n, &t))
 286                                 {
 287                                 n++;
 288                                 }
 289                         else
 290                                 {
 291                                 t = 1;
 292                                 n = 1;
 293                                 }
 294
 295                         if (n < 1) n = 1;
 296                         if (t < 1) t = 1;
 297
 298                         osd_template_insert(vars, "collection", NULL, OSDT_NONE);
 299                         }
 300
 301                 osd_template_insert(vars, "number", g_strdup_printf("%d", n), OSDT_NO_DUP);
 302                 osd_template_insert(vars, "total", g_strdup_printf("%d", t), OSDT_NO_DUP);
 303                 osd_template_insert(vars, "name", (gchar *) name, OSDT_NONE);
 304                 osd_template_insert(vars, "path", (gchar *) image_get_path(imd), OSDT_NONE);
 305                 osd_template_insert(vars, "date", imd->image_fd ? ((gchar *) text_from_time(imd->image_fd->date)) : "", OSDT_NONE);
 306                 osd_template_insert(vars, "size", imd->image_fd ? (text_from_size_abrev(imd->image_fd->size)) : g_strdup(""), OSDT_FREE);
 307                 osd_template_insert(vars, "zoom", image_zoom_get_as_text(imd), OSDT_FREE);
 308
 309                 if (!imd->unknown)
 310                         {
 311                         gint w, h;
 312                         GdkPixbuf *load_pixbuf = image_loader_get_pixbuf(imd->il);
 313
 314                         if (imd->delay_flip &&
 315                             imd->il && load_pixbuf &&
 316                             image_get_pixbuf(imd) != load_pixbuf)
 317                                 {
 318                                 w = gdk_pixbuf_get_width(load_pixbuf);
 319                                 h = gdk_pixbuf_get_height(load_pixbuf);
 320                                 }
 321                         else
 322                                 {
 323                                 image_get_image_size(imd, &w, &h);
 324                                 }
 325
 326
 327                         osd_template_insert(vars, "width", g_strdup_printf("%d", w), OSDT_NO_DUP);
 328                         osd_template_insert(vars, "height", g_strdup_printf("%d", h), OSDT_NO_DUP);
 329                         osd_template_insert(vars, "res", g_strdup_printf("%d × %d", w, h), OSDT_FREE);
 330                         }
 331                 else
 332                         {
 333                         osd_template_insert(vars, "width", NULL, OSDT_NONE);
 334                         osd_template_insert(vars, "height", NULL, OSDT_NONE);
 335                         osd_template_insert(vars, "res", NULL, OSDT_NONE);
 336                         }
 337
 338                 text = image_osd_mkinfo(options->image_overlay.template_string, imd->image_fd, vars);
 339                 g_hash_table_destroy(vars);
 340
 341         } else {
 342                 /* When does this occur ?? */
 343                 text = g_markup_escape_text(_("Untitled"), -1);
 344         }
 345
 346         with_hist = ((osd->show & OSD_SHOW_HISTOGRAM) && osd->histogram);
 347         if (with_hist)
 348                 {
 349                 histmap = histmap_get(imd->image_fd);
 350                 if (!histmap)
 351                         {
 352                         histmap_start_idle(imd->image_fd);
 353                         with_hist = FALSE;
 354                         }
 355                 }
 356
 357
 358         {
 359                 gint active_marks = 0;
 360                 gint mark;
 361                 gchar *text2;
 362
 363                 for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 364                         {
 365                         active_marks += file_data_get_mark(fd, mark);
 366                         }
 367
 368                 if (active_marks > 0)
 369                         {
 370                         GString *buf = g_string_sized_new(FILEDATA_MARKS_SIZE * 2);
 371
 372                         for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 373                                 {
 374                                 g_string_append_printf(buf, file_data_get_mark(fd, mark) ? " <span background='#FF00FF'>%c</span>" : " %c", '1' + (mark < 9 ? mark : -1) );
 375                                 }
 376
 377                         if (*text)
 378                                 text2 = g_strdup_printf("%s\n%s", text, buf->str);
 379                         else
 380                                 text2 = g_strdup(buf->str);
 381                         g_string_free(buf, TRUE);
 382                         g_free(text);
 383                         text = text2;
 384                         }
 385
 386                 if (with_hist)
 387                         {
 388                         gchar *escaped_histogram_label = g_markup_escape_text(histogram_label(osd->histogram), -1);
 389                         if (*text)
 390                                 text2 = g_strdup_printf("%s\n%s", text, escaped_histogram_label);
 391                         else
 392                                 text2 = g_strdup(escaped_histogram_label);
 393                         g_free(escaped_histogram_label);
 394                         g_free(text);
 395                         text = text2;
 396                         }
 397         }
 398
 399         font_desc = pango_font_description_from_string(options->image_overlay.font);
 400         layout = gtk_widget_create_pango_layout(imd->pr, NULL);
 401         pango_layout_set_font_description(layout, font_desc);
 402
 403         pango_layout_set_markup(layout, text, -1);
 404         g_free(text);
 405
 406         pango_layout_get_pixel_size(layout, &width, &height);
 407         /* with empty text width is set to 0, but not height) */
 408         if (width == 0)
 409                 height = 0;
 410         else if (height == 0)
 411                 width = 0;
 412         if (width > 0) width += 10;
 413         if (height > 0) height += 10;
 414
 415         if (with_hist)
 416                 {
 417                 if (width < HISTOGRAM_WIDTH + 10) width = HISTOGRAM_WIDTH + 10;
 418                 height += HISTOGRAM_HEIGHT + 5;
 419                 }
 420
 421         if (width > 0 && height > 0)
 422                 {
 423                 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
 424                 pixbuf_set_rect_fill(pixbuf, 3, 3, width-6, height-6, options->image_overlay.background_red, options->image_overlay.background_green,
 425                                                                                                                         options->image_overlay.background_blue, options->image_overlay.background_alpha);
 426                 pixbuf_set_rect(pixbuf, 0, 0, width, height, 240, 240, 240, 80, 1, 1, 1, 1);
 427                 pixbuf_set_rect(pixbuf, 1, 1, width-2, height-2, 240, 240, 240, 130, 1, 1, 1, 1);
 428                 pixbuf_set_rect(pixbuf, 2, 2, width-4, height-4, 240, 240, 240, 180, 1, 1, 1, 1);
 429                 pixbuf_pixel_set(pixbuf, 0, 0, 0, 0, 0, 0);
 430                 pixbuf_pixel_set(pixbuf, width - 1, 0, 0, 0, 0, 0);
 431                 pixbuf_pixel_set(pixbuf, 0, height - 1, 0, 0, 0, 0);
 432                 pixbuf_pixel_set(pixbuf, width - 1, height - 1, 0, 0, 0, 0);
 433
 434                 if (with_hist)
 435                         {
 436                         gint x = 5;
 437                         gint y = height - HISTOGRAM_HEIGHT - 5;
 438                         gint w = width - 10;
 439
 440                         pixbuf_set_rect_fill(pixbuf, x, y, w, HISTOGRAM_HEIGHT, 220, 220, 220, 210);
 441                         histogram_draw(osd->histogram, histmap, pixbuf, x, y, w, HISTOGRAM_HEIGHT);
 442                         }
 443                 pixbuf_draw_layout(pixbuf, layout, imd->pr, 5, 5, options->image_overlay.text_red, options->image_overlay.text_green,
 444                                                                                                                         options->image_overlay.text_blue, options->image_overlay.text_alpha);
 445         }
 446
 447         g_object_unref(G_OBJECT(layout));
 448
 449         return pixbuf;
 450 }
 451
 452 static GdkPixbuf *image_osd_icon_pixbuf(ImageOSDFlag flag)
 453 {
 454         static GdkPixbuf **icons = NULL;
 455         GdkPixbuf *icon = NULL;
 456
 457         if (!icons) icons = g_new0(GdkPixbuf *, IMAGE_OSD_COUNT);
 458         if (icons[flag]) return icons[flag];
 459
 460         if (osd_icons[flag].key)
 461                 {
 462                 icon = pixbuf_inline(osd_icons[flag].key);
 463                 }
 464
 465         if (!icon)
 466                 {
 467                 icon = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 24, 24);
 468                 pixbuf_set_rect_fill(icon, 1, 1, 22, 22, 255, 255, 255, 200);
 469                 pixbuf_set_rect(icon, 0, 0, 24, 24, 0, 0, 0, 128, 1, 1, 1, 1);
 470                 switch (flag)
 471                         {
 472                         case IMAGE_OSD_ROTATE_AUTO:
 473                                 pixbuf_set_rect(icon, 3, 8, 11, 12,
 474                                                 0, 0, 0, 255,
 475                                                 3, 0, 3, 0);
 476                                 pixbuf_draw_triangle(icon, 14, 3, 6, 12,
 477                                                      20, 9, 14, 15, 14, 3,
 478                                                      0, 0, 0, 255);
 479                                 break;
 480                         case IMAGE_OSD_ROTATE_USER:
 481                                 break;
 482                         case IMAGE_OSD_COLOR:
 483                                 pixbuf_set_rect_fill(icon, 3, 3, 18, 6, 200, 0, 0, 255);
 484                                 pixbuf_set_rect_fill(icon, 3, 9, 18, 6, 0, 200, 0, 255);
 485                                 pixbuf_set_rect_fill(icon, 3, 15, 18, 6, 0, 0, 200, 255);
 486                                 break;
 487                         case IMAGE_OSD_FIRST:
 488                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 3, 0);
 489                                 pixbuf_draw_triangle(icon, 6, 5, 12, 6,
 490                                                      12, 5, 18, 11, 6, 11,
 491                                                      0, 0, 0, 255);
 492                                 break;
 493                         case IMAGE_OSD_LAST:
 494                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 0, 3);
 495                                 pixbuf_draw_triangle(icon, 6, 12, 12, 6,
 496                                                      12, 18, 6, 12, 18, 12,
 497                                                      0, 0, 0, 255);
 498                                 break;
 499                         case IMAGE_OSD_ICON:
 500                                 pixbuf_set_rect_fill(icon, 11, 3, 3, 12, 0, 0, 0, 255);
 501                                 pixbuf_set_rect_fill(icon, 11, 17, 3, 3, 0, 0, 0, 255);
 502                                 break;
 503                         default:
 504                                 break;
 505                         }
 506                 }
 507
 508         icons[flag] = icon;
 509
 510         return icon;
 511 }
 512
 513 static gint image_overlay_add(ImageWindow *imd, GdkPixbuf *pixbuf, gint x, gint y,
 514                               OverlayRendererFlags flags)
 515 {
 516         return pixbuf_renderer_overlay_add((PixbufRenderer *)imd->pr, pixbuf, x, y, flags);
 517 }
 518
 519 static void image_overlay_set(ImageWindow *imd, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 520 {
 521         pixbuf_renderer_overlay_set((PixbufRenderer *)imd->pr, id, pixbuf, x, y);
 522 }
 523
 524 static void image_overlay_remove(ImageWindow *imd, gint id)
 525 {
 526         pixbuf_renderer_overlay_remove((PixbufRenderer *)imd->pr, id);
 527 }
 528
 529 static void image_osd_icon_show(OverlayStateData *osd, ImageOSDFlag flag)
 530 {
 531         GdkPixbuf *pixbuf;
 532
 533         if (osd->icon_id[flag]) return;
 534
 535         pixbuf = image_osd_icon_pixbuf(flag);
 536         if (!pixbuf) return;
 537
 538         osd->icon_id[flag] = image_overlay_add(osd->imd, pixbuf,
 539                                                osd_icons[flag].x, osd_icons[flag].y,
 540                                                OVL_RELATIVE);
 541 }
 542
 543 static void image_osd_icon_hide(OverlayStateData *osd, ImageOSDFlag flag)
 544 {
 545         if (osd->icon_id[flag])
 546                 {
 547                 image_overlay_remove(osd->imd, osd->icon_id[flag]);
 548                 osd->icon_id[flag] = 0;
 549                 }
 550 }
 551
 552 static void image_osd_icons_reset_time(OverlayStateData *osd)
 553 {
 554         gint i;
 555
 556         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 557                 {
 558                 if (osd_icons[i].reset)
 559                         {
 560                         osd->icon_time[i] = 0;
 561                         }
 562                 }
 563 }
 564
 565 static void image_osd_icons_update(OverlayStateData *osd)
 566 {
 567         gint i;
 568
 569         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 570                 {
 571                 if (osd->icon_time[i] > 0)
 572                         {
 573                         image_osd_icon_show(osd, static_cast<ImageOSDFlag>(i));
 574                         }
 575                 else
 576                         {
 577                         image_osd_icon_hide(osd, static_cast<ImageOSDFlag>(i));
 578                         }
 579                 }
 580 }
 581
 582 static void image_osd_icons_hide(OverlayStateData *osd)
 583 {
 584         gint i;
 585
 586         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 587                 {
 588                 image_osd_icon_hide(osd, static_cast<ImageOSDFlag>(i));
 589                 }
 590 }
 591
 592 static void image_osd_info_show(OverlayStateData *osd, GdkPixbuf *pixbuf)
 593 {
 594         if (osd->ovl_info == 0)
 595                 {
 596                 osd->ovl_info = image_overlay_add(osd->imd, pixbuf, osd->x, osd->y, osd->origin);
 597                 }
 598         else
 599                 {
 600                 image_overlay_set(osd->imd, osd->ovl_info, pixbuf, osd->x, osd->y);
 601                 }
 602 }
 603
 604 static void image_osd_info_hide(OverlayStateData *osd)
 605 {
 606         if (osd->ovl_info == 0) return;
 607
 608         image_overlay_remove(osd->imd, osd->ovl_info);
 609         osd->ovl_info = 0;
 610 }
 611
 612 static gboolean image_osd_update_cb(gpointer data)
 613 {
 614         OverlayStateData *osd = static_cast<OverlayStateData *>(data);
 615
 616         if (osd->show & OSD_SHOW_INFO)
 617                 {
 618                 /* redraw when the image was changed,
 619                    with histogram we have to redraw also when loading is finished */
 620                 if (osd->changed_states & IMAGE_STATE_IMAGE ||
 621                     (osd->changed_states & IMAGE_STATE_LOADING && osd->show & OSD_SHOW_HISTOGRAM) ||
 622                     osd->notify & NOTIFY_HISTMAP)
 623                         {
 624                         GdkPixbuf *pixbuf;
 625
 626                         pixbuf = image_osd_info_render(osd);
 627                         if (pixbuf)
 628                                 {
 629                                 image_osd_info_show(osd, pixbuf);
 630                                 g_object_unref(pixbuf);
 631                                 }
 632                         else
 633                                 {
 634                                 image_osd_info_hide(osd);
 635                                 }
 636                         }
 637                 }
 638         else
 639                 {
 640                 image_osd_info_hide(osd);
 641                 }
 642
 643         if (osd->show & OSD_SHOW_STATUS)
 644                 {
 645                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 646                         image_osd_icons_reset_time(osd);
 647
 648                 if (osd->changed_states & IMAGE_STATE_COLOR_ADJ)
 649                         {
 650                         osd->icon_time[IMAGE_OSD_COLOR] = IMAGE_OSD_DEFAULT_DURATION + 1;
 651                         image_osd_timer_schedule(osd);
 652                         }
 653
 654                 if (osd->changed_states & IMAGE_STATE_ROTATE_AUTO)
 655                         {
 656                         gint n = 0;
 657
 658                         if (osd->imd->state & IMAGE_STATE_ROTATE_AUTO)
 659                                 {
 660                                 n = 1;
 661                                 if (!osd->imd->cm) n += IMAGE_OSD_DEFAULT_DURATION;
 662                                 }
 663
 664                         osd->icon_time[IMAGE_OSD_ROTATE_AUTO] = n;
 665                         image_osd_timer_schedule(osd);
 666                         }
 667
 668                 image_osd_icons_update(osd);
 669                 }
 670         else
 671                 {
 672                 image_osd_icons_hide(osd);
 673                 }
 674
 675         osd->changed_states = IMAGE_STATE_NONE;
 676         osd->notify = static_cast<NotifyType>(0);
 677         osd->idle_id = 0;
 678         return G_SOURCE_REMOVE;
 679 }
 680
 681 static void image_osd_update_schedule(OverlayStateData *osd, gboolean force)
 682 {
 683         if (force) osd->changed_states = static_cast<ImageState>(osd->changed_states | IMAGE_STATE_IMAGE);
 684
 685         if (!osd->idle_id)
 686                 {
 687                 osd->idle_id = g_idle_add_full(G_PRIORITY_HIGH, image_osd_update_cb, osd, NULL);
 688                 }
 689 }
 690
 691 void image_osd_update(ImageWindow *imd)
 692 {
 693         OverlayStateData *osd = image_get_osd_data(imd);
 694
 695         if (!osd) return;
 696
 697         image_osd_update_schedule(osd, TRUE);
 698 }
 699
 700 static gboolean image_osd_timer_cb(gpointer data)
 701 {
 702         OverlayStateData *osd = static_cast<OverlayStateData *>(data);
 703         gboolean done = TRUE;
 704         gboolean changed = FALSE;
 705         gint i;
 706
 707         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 708                 {
 709                 if (osd->icon_time[i] > 1)
 710                         {
 711                         osd->icon_time[i]--;
 712                         if (osd->icon_time[i] < 2)
 713                                 {
 714                                 osd->icon_time[i] = 0;
 715                                 changed = TRUE;
 716                                 }
 717                         else
 718                                 {
 719                                 done = FALSE;
 720                                 }
 721                         }
 722                 }
 723
 724         if (changed) image_osd_update_schedule(osd, FALSE);
 725
 726         if (done)
 727                 {
 728                 osd->timer_id = 0;
 729                 return FALSE;
 730                 }
 731
 732         return TRUE;
 733 }
 734
 735 static void image_osd_timer_schedule(OverlayStateData *osd)
 736 {
 737         if (!osd->timer_id)
 738                 {
 739                 osd->timer_id = g_timeout_add(100, image_osd_timer_cb, osd);
 740                 }
 741 }
 742
 743 static void image_osd_state_cb(ImageWindow *UNUSED(imd), ImageState state, gpointer data)
 744 {
 745         OverlayStateData *osd = static_cast<OverlayStateData *>(data);
 746
 747         osd->changed_states = static_cast<ImageState>(osd->changed_states | state);
 748         image_osd_update_schedule(osd, FALSE);
 749 }
 750
 751 static void image_osd_notify_cb(FileData *fd, NotifyType type, gpointer data)
 752 {
 753         OverlayStateData *osd = static_cast<OverlayStateData *>(data);
 754
 755         if ((type & (NOTIFY_HISTMAP)) && osd->imd && fd == osd->imd->image_fd)
 756                 {
 757                 DEBUG_1("Notify osd: %s %04x", fd->path, type);
 758                 osd->notify = static_cast<NotifyType>(osd->notify | type);
 759                 image_osd_update_schedule(osd, FALSE);
 760                 }
 761 }
 762
 763
 764 static void image_osd_free(OverlayStateData *osd)
 765 {
 766         if (!osd) return;
 767
 768         if (osd->idle_id) g_source_remove(osd->idle_id);
 769         if (osd->timer_id) g_source_remove(osd->timer_id);
 770
 771         file_data_unregister_notify_func(image_osd_notify_cb, osd);
 772
 773         if (osd->imd)
 774                 {
 775                 image_set_osd_data(osd->imd, NULL);
 776                 g_signal_handler_disconnect(osd->imd->pr, osd->destroy_id);
 777
 778                 image_set_state_func(osd->imd, NULL, NULL);
 779
 780                 image_osd_info_hide(osd);
 781                 image_osd_icons_hide(osd);
 782                 }
 783
 784         if (osd->histogram) histogram_free(osd->histogram);
 785
 786         g_free(osd);
 787 }
 788
 789 static void image_osd_destroy_cb(GtkWidget *UNUSED(widget), gpointer data)
 790 {
 791         OverlayStateData *osd = static_cast<OverlayStateData *>(data);
 792
 793         osd->imd = NULL;
 794         image_osd_free(osd);
 795 }
 796
 797 static void image_osd_enable(ImageWindow *imd, OsdShowFlags show)
 798 {
 799         OverlayStateData *osd = image_get_osd_data(imd);
 800
 801         if (!osd)
 802                 {
 803                 osd = g_new0(OverlayStateData, 1);
 804                 osd->imd = imd;
 805                 osd->show = OSD_SHOW_NOTHING;
 806                 osd->x = options->image_overlay.x;
 807                 osd->y = options->image_overlay.y;
 808                 osd->origin = OVL_RELATIVE;
 809
 810                 osd->histogram = histogram_new();
 811
 812                 osd->destroy_id = g_signal_connect(G_OBJECT(imd->pr), "destroy",
 813                                                    G_CALLBACK(image_osd_destroy_cb), osd);
 814                 image_set_osd_data(imd, osd);
 815
 816                 image_set_state_func(osd->imd, image_osd_state_cb, osd);
 817                 file_data_register_notify_func(image_osd_notify_cb, osd, NOTIFY_PRIORITY_LOW);
 818                 }
 819
 820         if (show & OSD_SHOW_STATUS)
 821                 image_osd_icon(imd, IMAGE_OSD_ICON, -1);
 822
 823         if (show != osd->show)
 824                 image_osd_update_schedule(osd, TRUE);
 825
 826         osd->show = show;
 827 }
 828
 829 void image_osd_set(ImageWindow *imd, OsdShowFlags show)
 830 {
 831         if (!imd) return;
 832
 833         image_osd_enable(imd, show);
 834 }
 835
 836 OsdShowFlags image_osd_get(ImageWindow *imd)
 837 {
 838         OverlayStateData *osd = image_get_osd_data(imd);
 839
 840         return osd ? osd->show : OSD_SHOW_NOTHING;
 841 }
 842
 843 Histogram *image_osd_get_histogram(ImageWindow *imd)
 844 {
 845         OverlayStateData *osd = image_get_osd_data(imd);
 846
 847         return osd ? osd->histogram : NULL;
 848 }
 849
 850 void image_osd_copy_status(ImageWindow *src, ImageWindow *dest)
 851 {
 852         Histogram *h_src, *h_dest;
 853         image_osd_set(dest, image_osd_get(src));
 854
 855         h_src = image_osd_get_histogram(src);
 856         h_dest = image_osd_get_histogram(dest);
 857
 858         h_dest->histogram_mode = h_src->histogram_mode;
 859         h_dest->histogram_channel = h_src->histogram_channel;
 860
 861 }
 862
 863 /* duration:
 864     0 = hide
 865     1 = show
 866    2+ = show for duration tenths of a second
 867    -1 = use default duration
 868  */
 869 void image_osd_icon(ImageWindow *imd, ImageOSDFlag flag, gint duration)
 870 {
 871         OverlayStateData *osd = image_get_osd_data(imd);
 872
 873         if (!osd) return;
 874
 875         if (flag >= IMAGE_OSD_COUNT) return;
 876         if (duration < 0) duration = IMAGE_OSD_DEFAULT_DURATION;
 877         if (duration > 1) duration += 1;
 878
 879         osd->icon_time[flag] = duration;
 880
 881         image_osd_update_schedule(osd, FALSE);
 882         image_osd_timer_schedule(osd);
 883 }
 884 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */