src/image-overlay.c

   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 = 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
 206         if (!imd) return;
 207
 208         show = image_osd_get(imd);
 209         if (show == OSD_SHOW_NOTHING)
 210                 {
 211                 image_osd_set(imd, OSD_SHOW_INFO | OSD_SHOW_STATUS);
 212                 return;
 213                 }
 214         else
 215                 {
 216                 if (show & OSD_SHOW_GUIDELINES)
 217                         {
 218                         image_osd_set(imd, OSD_SHOW_NOTHING);
 219                         }
 220                 else if (show & OSD_SHOW_HISTOGRAM)
 221                         {
 222                         image_osd_set(imd, OSD_SHOW_GUIDELINES);
 223                         image_osd_set(imd, show | ~OSD_SHOW_HISTOGRAM);
 224                         }
 225                 else
 226                         {
 227                         image_osd_set(imd, show | OSD_SHOW_HISTOGRAM);
 228                         }
 229                 }
 230 }
 231
 232 static GdkPixbuf *image_osd_info_render(OverlayStateData *osd)
 233 {
 234         GdkPixbuf *pixbuf = NULL;
 235         gint width, height;
 236         PangoLayout *layout;
 237         const gchar *name;
 238         gchar *text;
 239         gboolean with_hist;
 240         const HistMap *histmap = NULL;
 241         ImageWindow *imd = osd->imd;
 242         FileData *fd = image_get_fd(imd);
 243         PangoFontDescription *font_desc;
 244
 245         if (!fd) return NULL;
 246
 247         name = image_get_name(imd);
 248         if (name)
 249                 {
 250                 gint n, t;
 251                 CollectionData *cd;
 252                 CollectInfo *info;
 253                 GHashTable *vars;
 254
 255                 vars = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_free);
 256
 257                 cd = image_get_collection(imd, &info);
 258                 if (cd)
 259                         {
 260                         t = g_list_length(cd->list);
 261                         n = g_list_index(cd->list, info) + 1;
 262                         if (cd->name)
 263                                 {
 264                                 if (file_extension_match(cd->name, GQ_COLLECTION_EXT))
 265                                         osd_template_insert(vars, "collection", remove_extension_from_path(cd->name), OSDT_FREE);
 266                                 else
 267                                         osd_template_insert(vars, "collection", cd->name, OSDT_NONE);
 268                                 }
 269                         else
 270                                 {
 271                                 osd_template_insert(vars, "collection", _("Untitled"), OSDT_NONE);
 272                                 }
 273                         }
 274                 else
 275                         {
 276                         LayoutWindow *lw = layout_find_by_image(imd);
 277                         if (lw)
 278                                 {
 279                                 if (lw->slideshow)
 280                                         {
 281                                         n = g_list_length(lw->slideshow->list_done);
 282                                         t = n + g_list_length(lw->slideshow->list);
 283                                         if (n == 0) n = t;
 284                                         }
 285                                 else
 286                                         {
 287                                         t = layout_list_count(lw, NULL);
 288                                         n = layout_list_get_index(lw, image_get_fd(lw->image)) + 1;
 289                                         }
 290                                 }
 291                         else if (view_window_find_image(imd, &n, &t))
 292                                 {
 293                                 n++;
 294                                 }
 295                         else
 296                                 {
 297                                 t = 1;
 298                                 n = 1;
 299                                 }
 300
 301                         if (n < 1) n = 1;
 302                         if (t < 1) t = 1;
 303
 304                         osd_template_insert(vars, "collection", NULL, OSDT_NONE);
 305                         }
 306
 307                 osd_template_insert(vars, "number", g_strdup_printf("%d", n), OSDT_NO_DUP);
 308                 osd_template_insert(vars, "total", g_strdup_printf("%d", t), OSDT_NO_DUP);
 309                 osd_template_insert(vars, "name", (gchar *) name, OSDT_NONE);
 310                 osd_template_insert(vars, "date", imd->image_fd ? ((gchar *) text_from_time(imd->image_fd->date)) : "", OSDT_NONE);
 311                 osd_template_insert(vars, "size", imd->image_fd ? (text_from_size_abrev(imd->image_fd->size)) : g_strdup(""), OSDT_FREE);
 312                 osd_template_insert(vars, "zoom", image_zoom_get_as_text(imd), OSDT_FREE);
 313
 314                 if (!imd->unknown)
 315                         {
 316                         gint w, h;
 317                         GdkPixbuf *load_pixbuf = image_loader_get_pixbuf(imd->il);
 318
 319                         if (imd->delay_flip &&
 320                             imd->il && load_pixbuf &&
 321                             image_get_pixbuf(imd) != load_pixbuf)
 322                                 {
 323                                 w = gdk_pixbuf_get_width(load_pixbuf);
 324                                 h = gdk_pixbuf_get_height(load_pixbuf);
 325                                 }
 326                         else
 327                                 {
 328                                 image_get_image_size(imd, &w, &h);
 329                                 }
 330
 331
 332                         osd_template_insert(vars, "width", g_strdup_printf("%d", w), OSDT_NO_DUP);
 333                         osd_template_insert(vars, "height", g_strdup_printf("%d", h), OSDT_NO_DUP);
 334                         osd_template_insert(vars, "res", g_strdup_printf("%d × %d", w, h), OSDT_FREE);
 335                         }
 336                 else
 337                         {
 338                         osd_template_insert(vars, "width", NULL, OSDT_NONE);
 339                         osd_template_insert(vars, "height", NULL, OSDT_NONE);
 340                         osd_template_insert(vars, "res", NULL, OSDT_NONE);
 341                         }
 342
 343                 text = image_osd_mkinfo(options->image_overlay.template_string, imd->image_fd, vars);
 344                 g_hash_table_destroy(vars);
 345
 346         } else {
 347                 /* When does this occur ?? */
 348                 text = g_markup_escape_text(_("Untitled"), -1);
 349         }
 350
 351         with_hist = ((osd->show & OSD_SHOW_HISTOGRAM) && osd->histogram);
 352         if (with_hist)
 353                 {
 354                 histmap = histmap_get(imd->image_fd);
 355                 if (!histmap)
 356                         {
 357                         histmap_start_idle(imd->image_fd);
 358                         with_hist = FALSE;
 359                         }
 360                 }
 361
 362
 363         {
 364                 gint active_marks = 0;
 365                 gint mark;
 366                 gchar *text2;
 367
 368                 for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 369                         {
 370                         active_marks += file_data_get_mark(fd, mark);
 371                         }
 372
 373                 if (active_marks > 0)
 374                         {
 375                         GString *buf = g_string_sized_new(FILEDATA_MARKS_SIZE * 2);
 376
 377                         for (mark = 0; mark < FILEDATA_MARKS_SIZE; mark++)
 378                                 {
 379                                 g_string_append_printf(buf, file_data_get_mark(fd, mark) ? " <span background='#FF00FF'>%c</span>" : " %c", '1' + (mark < 9 ? mark : -1) );
 380                                 }
 381
 382                         if (*text)
 383                                 text2 = g_strdup_printf("%s\n%s", text, buf->str);
 384                         else
 385                                 text2 = g_strdup(buf->str);
 386                         g_string_free(buf, TRUE);
 387                         g_free(text);
 388                         text = text2;
 389                         }
 390
 391                 if (with_hist)
 392                         {
 393                         gchar *escaped_histogram_label = g_markup_escape_text(histogram_label(osd->histogram), -1);
 394                         if (*text)
 395                                 text2 = g_strdup_printf("%s\n%s", text, escaped_histogram_label);
 396                         else
 397                                 text2 = g_strdup(escaped_histogram_label);
 398                         g_free(escaped_histogram_label);
 399                         g_free(text);
 400                         text = text2;
 401                         }
 402         }
 403
 404         font_desc = pango_font_description_from_string(options->image_overlay.font);
 405         layout = gtk_widget_create_pango_layout(imd->pr, NULL);
 406         pango_layout_set_font_description(layout, font_desc);
 407
 408         pango_layout_set_markup(layout, text, -1);
 409         g_free(text);
 410
 411         pango_layout_get_pixel_size(layout, &width, &height);
 412         /* with empty text width is set to 0, but not height) */
 413         if (width == 0)
 414                 height = 0;
 415         else if (height == 0)
 416                 width = 0;
 417         if (width > 0) width += 10;
 418         if (height > 0) height += 10;
 419
 420         if (with_hist)
 421                 {
 422                 if (width < HISTOGRAM_WIDTH + 10) width = HISTOGRAM_WIDTH + 10;
 423                 height += HISTOGRAM_HEIGHT + 5;
 424                 }
 425
 426         if (width > 0 && height > 0)
 427                 {
 428                 pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
 429                 pixbuf_set_rect_fill(pixbuf, 3, 3, width-6, height-6, options->image_overlay.background_red, options->image_overlay.background_green,
 430                                                                                                                         options->image_overlay.background_blue, options->image_overlay.background_alpha);
 431                 pixbuf_set_rect(pixbuf, 0, 0, width, height, 240, 240, 240, 80, 1, 1, 1, 1);
 432                 pixbuf_set_rect(pixbuf, 1, 1, width-2, height-2, 240, 240, 240, 130, 1, 1, 1, 1);
 433                 pixbuf_set_rect(pixbuf, 2, 2, width-4, height-4, 240, 240, 240, 180, 1, 1, 1, 1);
 434                 pixbuf_pixel_set(pixbuf, 0, 0, 0, 0, 0, 0);
 435                 pixbuf_pixel_set(pixbuf, width - 1, 0, 0, 0, 0, 0);
 436                 pixbuf_pixel_set(pixbuf, 0, height - 1, 0, 0, 0, 0);
 437                 pixbuf_pixel_set(pixbuf, width - 1, height - 1, 0, 0, 0, 0);
 438
 439                 if (with_hist)
 440                         {
 441                         gint x = 5;
 442                         gint y = height - HISTOGRAM_HEIGHT - 5;
 443                         gint w = width - 10;
 444
 445                         pixbuf_set_rect_fill(pixbuf, x, y, w, HISTOGRAM_HEIGHT, 220, 220, 220, 210);
 446                         histogram_draw(osd->histogram, histmap, pixbuf, x, y, w, HISTOGRAM_HEIGHT);
 447                         }
 448                 pixbuf_draw_layout(pixbuf, layout, imd->pr, 5, 5, options->image_overlay.text_red, options->image_overlay.text_green,
 449                                                                                                                         options->image_overlay.text_blue, options->image_overlay.text_alpha);
 450         }
 451
 452         g_object_unref(G_OBJECT(layout));
 453
 454         return pixbuf;
 455 }
 456
 457 static GdkPixbuf *image_osd_icon_pixbuf(ImageOSDFlag flag)
 458 {
 459         static GdkPixbuf **icons = NULL;
 460         GdkPixbuf *icon = NULL;
 461
 462         if (!icons) icons = g_new0(GdkPixbuf *, IMAGE_OSD_COUNT);
 463         if (icons[flag]) return icons[flag];
 464
 465         if (osd_icons[flag].key)
 466                 {
 467                 icon = pixbuf_inline(osd_icons[flag].key);
 468                 }
 469
 470         if (!icon)
 471                 {
 472                 icon = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 24, 24);
 473                 pixbuf_set_rect_fill(icon, 1, 1, 22, 22, 255, 255, 255, 200);
 474                 pixbuf_set_rect(icon, 0, 0, 24, 24, 0, 0, 0, 128, 1, 1, 1, 1);
 475                 switch (flag)
 476                         {
 477                         case IMAGE_OSD_ROTATE_AUTO:
 478                                 pixbuf_set_rect(icon, 3, 8, 11, 12,
 479                                                 0, 0, 0, 255,
 480                                                 3, 0, 3, 0);
 481                                 pixbuf_draw_triangle(icon, 14, 3, 6, 12,
 482                                                      20, 9, 14, 15, 14, 3,
 483                                                      0, 0, 0, 255);
 484                                 break;
 485                         case IMAGE_OSD_ROTATE_USER:
 486                                 break;
 487                         case IMAGE_OSD_COLOR:
 488                                 pixbuf_set_rect_fill(icon, 3, 3, 18, 6, 200, 0, 0, 255);
 489                                 pixbuf_set_rect_fill(icon, 3, 9, 18, 6, 0, 200, 0, 255);
 490                                 pixbuf_set_rect_fill(icon, 3, 15, 18, 6, 0, 0, 200, 255);
 491                                 break;
 492                         case IMAGE_OSD_FIRST:
 493                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 3, 0);
 494                                 pixbuf_draw_triangle(icon, 6, 5, 12, 6,
 495                                                      12, 5, 18, 11, 6, 11,
 496                                                      0, 0, 0, 255);
 497                                 break;
 498                         case IMAGE_OSD_LAST:
 499                                 pixbuf_set_rect(icon, 3, 3, 18, 18, 0, 0, 0, 200, 3, 3, 0, 3);
 500                                 pixbuf_draw_triangle(icon, 6, 12, 12, 6,
 501                                                      12, 18, 6, 12, 18, 12,
 502                                                      0, 0, 0, 255);
 503                                 break;
 504                         case IMAGE_OSD_ICON:
 505                                 pixbuf_set_rect_fill(icon, 11, 3, 3, 12, 0, 0, 0, 255);
 506                                 pixbuf_set_rect_fill(icon, 11, 17, 3, 3, 0, 0, 0, 255);
 507                                 break;
 508                         default:
 509                                 break;
 510                         }
 511                 }
 512
 513         icons[flag] = icon;
 514
 515         return icon;
 516 }
 517
 518 static GdkPixbuf *image_osd_guidelines_render(OverlayStateData *osd)
 519 {
 520         gint width, height;
 521         GdkPixbuf *rectangles;
 522         ImageWindow *imd = osd->imd;
 523
 524         pixbuf_renderer_get_scaled_size((PixbufRenderer *)imd->pr, &width, &height);
 525
 526         if (width && height)
 527                 {
 528                 rectangles = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
 529                 if (rectangles)
 530                         {
 531                         pixbuf_set_rect_fill(rectangles, 0, 0, width, height, 255, 255, 255, 0);
 532                         pixbuf_set_rect(rectangles, 0, 0 + (height / 3), width, height / 3,
 533                                                                 0, 0, 0, 255,
 534                                                                 1, 1, 1, 1);
 535                         pixbuf_set_rect(rectangles, 0, 0 + (height / 3 + 1), width, height / 3 - 2,
 536                                                                 255, 255, 255, 255,
 537                                                                 1, 1, 1, 1);
 538
 539                         pixbuf_set_rect(rectangles, 0 + width / 3, 0 , width / 3, height,
 540                                                                 0, 0, 0, 255,
 541                                                                 1, 1, 1, 1);
 542                         pixbuf_set_rect(rectangles, 0 + width / 3 + 1, 0, width / 3 - 2, height,
 543                                                                 255, 255, 255, 255,
 544                                                                 1, 1, 1, 1);
 545                         return rectangles;
 546                         }
 547                 }
 548
 549         return NULL;
 550 }
 551
 552 static gint image_overlay_add(ImageWindow *imd, GdkPixbuf *pixbuf, gint x, gint y,
 553                               OverlayRendererFlags flags)
 554 {
 555         return pixbuf_renderer_overlay_add((PixbufRenderer *)imd->pr, pixbuf, x, y, flags);
 556 }
 557
 558 static void image_overlay_set(ImageWindow *imd, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 559 {
 560         pixbuf_renderer_overlay_set((PixbufRenderer *)imd->pr, id, pixbuf, x, y);
 561 }
 562
 563 static void image_overlay_remove(ImageWindow *imd, gint id)
 564 {
 565         pixbuf_renderer_overlay_remove((PixbufRenderer *)imd->pr, id);
 566 }
 567
 568 static void image_osd_icon_show(OverlayStateData *osd, ImageOSDFlag flag)
 569 {
 570         GdkPixbuf *pixbuf;
 571
 572         if (osd->icon_id[flag]) return;
 573
 574         pixbuf = image_osd_icon_pixbuf(flag);
 575         if (!pixbuf) return;
 576
 577         osd->icon_id[flag] = image_overlay_add(osd->imd, pixbuf,
 578                                                osd_icons[flag].x, osd_icons[flag].y,
 579                                                OVL_RELATIVE);
 580 }
 581
 582 static void image_osd_icon_hide(OverlayStateData *osd, ImageOSDFlag flag)
 583 {
 584         if (osd->icon_id[flag])
 585                 {
 586                 image_overlay_remove(osd->imd, osd->icon_id[flag]);
 587                 osd->icon_id[flag] = 0;
 588                 }
 589 }
 590
 591 static void image_osd_icons_reset_time(OverlayStateData *osd)
 592 {
 593         gint i;
 594
 595         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 596                 {
 597                 if (osd_icons[i].reset)
 598                         {
 599                         osd->icon_time[i] = 0;
 600                         }
 601                 }
 602 }
 603
 604 static void image_osd_icons_update(OverlayStateData *osd)
 605 {
 606         gint i;
 607
 608         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 609                 {
 610                 if (osd->icon_time[i] > 0)
 611                         {
 612                         image_osd_icon_show(osd, i);
 613                         }
 614                 else
 615                         {
 616                         image_osd_icon_hide(osd, i);
 617                         }
 618                 }
 619 }
 620
 621 static void image_osd_icons_hide(OverlayStateData *osd)
 622 {
 623         gint i;
 624
 625         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 626                 {
 627                 image_osd_icon_hide(osd, i);
 628                 }
 629 }
 630
 631 static void image_osd_info_show(OverlayStateData *osd, GdkPixbuf *pixbuf)
 632 {
 633         if (osd->ovl_info == 0)
 634                 {
 635                 osd->ovl_info = image_overlay_add(osd->imd, pixbuf, osd->x, osd->y, osd->origin);
 636                 }
 637         else
 638                 {
 639                 image_overlay_set(osd->imd, osd->ovl_info, pixbuf, osd->x, osd->y);
 640                 }
 641 }
 642
 643 static void image_osd_info_hide(OverlayStateData *osd)
 644 {
 645         if (osd->ovl_info == 0) return;
 646
 647         image_overlay_remove(osd->imd, osd->ovl_info);
 648         osd->ovl_info = 0;
 649 }
 650
 651 static gboolean image_osd_update_cb(gpointer data)
 652 {
 653         OverlayStateData *osd = data;
 654
 655         if (osd->show & OSD_SHOW_INFO)
 656                 {
 657                 /* redraw when the image was changed,
 658                    with histogram we have to redraw also when loading is finished */
 659                 if (osd->changed_states & IMAGE_STATE_IMAGE ||
 660                     (osd->changed_states & IMAGE_STATE_LOADING && osd->show & OSD_SHOW_HISTOGRAM) ||
 661                     (osd->changed_states & IMAGE_STATE_LOADING && osd->show & OSD_SHOW_GUIDELINES) ||
 662                     osd->notify & NOTIFY_HISTMAP)
 663                         {
 664                         GdkPixbuf *pixbuf;
 665
 666                         if (osd->show & OSD_SHOW_GUIDELINES)
 667                                 {
 668                                 ImageWindow *imd = osd->imd;
 669                                 osd->x = ((PixbufRenderer *)imd->pr)->x_offset;
 670                                 osd->y = ((PixbufRenderer *)imd->pr)->y_offset;
 671                                 osd->origin = OVL_NORMAL;
 672
 673                                 pixbuf = image_osd_guidelines_render(osd);
 674                                 if (pixbuf)
 675                                         {
 676                                         image_osd_info_show(osd, pixbuf);
 677                                         g_object_unref(pixbuf);
 678                                         }
 679
 680                                 osd->x = options->image_overlay.x;
 681                                 osd->y = options->image_overlay.y;
 682                                 osd->origin = OVL_RELATIVE;
 683                                 }
 684                         else
 685                                 {
 686                                 pixbuf = image_osd_info_render(osd);
 687                                 if (pixbuf)
 688                                         {
 689                                         image_osd_info_show(osd, pixbuf);
 690                                         g_object_unref(pixbuf);
 691                                         }
 692                                 else
 693                                         {
 694                                         image_osd_info_hide(osd);
 695                                         }
 696                                 }
 697                         }
 698                 }
 699         else
 700                 {
 701                 image_osd_info_hide(osd);
 702                 }
 703
 704         if (osd->show & OSD_SHOW_STATUS)
 705                 {
 706                 if (osd->changed_states & IMAGE_STATE_IMAGE)
 707                         image_osd_icons_reset_time(osd);
 708
 709                 if (osd->changed_states & IMAGE_STATE_COLOR_ADJ)
 710                         {
 711                         osd->icon_time[IMAGE_OSD_COLOR] = IMAGE_OSD_DEFAULT_DURATION + 1;
 712                         image_osd_timer_schedule(osd);
 713                         }
 714
 715                 if (osd->changed_states & IMAGE_STATE_ROTATE_AUTO)
 716                         {
 717                         gint n = 0;
 718
 719                         if (osd->imd->state & IMAGE_STATE_ROTATE_AUTO)
 720                                 {
 721                                 n = 1;
 722                                 if (!osd->imd->cm) n += IMAGE_OSD_DEFAULT_DURATION;
 723                                 }
 724
 725                         osd->icon_time[IMAGE_OSD_ROTATE_AUTO] = n;
 726                         image_osd_timer_schedule(osd);
 727                         }
 728
 729                 image_osd_icons_update(osd);
 730                 }
 731         else
 732                 {
 733                 image_osd_icons_hide(osd);
 734                 }
 735
 736         osd->changed_states = IMAGE_STATE_NONE;
 737         osd->notify = 0;
 738         osd->idle_id = 0;
 739         return FALSE;
 740 }
 741
 742 static void image_osd_update_schedule(OverlayStateData *osd, gboolean force)
 743 {
 744         if (force) osd->changed_states |= IMAGE_STATE_IMAGE;
 745
 746         if (!osd->idle_id)
 747                 {
 748                 osd->idle_id = g_idle_add_full(G_PRIORITY_HIGH, image_osd_update_cb, osd, NULL);
 749                 }
 750 }
 751
 752 void image_osd_update(ImageWindow *imd)
 753 {
 754         OverlayStateData *osd = image_get_osd_data(imd);
 755
 756         if (!osd) return;
 757
 758         image_osd_update_schedule(osd, TRUE);
 759 }
 760
 761 static gboolean image_osd_timer_cb(gpointer data)
 762 {
 763         OverlayStateData *osd = data;
 764         gboolean done = TRUE;
 765         gboolean changed = FALSE;
 766         gint i;
 767
 768         for (i = 0; i < IMAGE_OSD_COUNT; i++)
 769                 {
 770                 if (osd->icon_time[i] > 1)
 771                         {
 772                         osd->icon_time[i]--;
 773                         if (osd->icon_time[i] < 2)
 774                                 {
 775                                 osd->icon_time[i] = 0;
 776                                 changed = TRUE;
 777                                 }
 778                         else
 779                                 {
 780                                 done = FALSE;
 781                                 }
 782                         }
 783                 }
 784
 785         if (changed) image_osd_update_schedule(osd, FALSE);
 786
 787         if (done)
 788                 {
 789                 osd->timer_id = 0;
 790                 return FALSE;
 791                 }
 792
 793         return TRUE;
 794 }
 795
 796 static void image_osd_timer_schedule(OverlayStateData *osd)
 797 {
 798         if (!osd->timer_id)
 799                 {
 800                 osd->timer_id = g_timeout_add(100, image_osd_timer_cb, osd);
 801                 }
 802 }
 803
 804 static void image_osd_state_cb(ImageWindow *imd, ImageState state, gpointer data)
 805 {
 806         OverlayStateData *osd = data;
 807
 808         osd->changed_states |= state;
 809         image_osd_update_schedule(osd, FALSE);
 810 }
 811
 812 static void image_osd_notify_cb(FileData *fd, NotifyType type, gpointer data)
 813 {
 814         OverlayStateData *osd = data;
 815
 816         if ((type & (NOTIFY_HISTMAP)) && osd->imd && fd == osd->imd->image_fd)
 817                 {
 818                 DEBUG_1("Notify osd: %s %04x", fd->path, type);
 819                 osd->notify |= type;
 820                 image_osd_update_schedule(osd, FALSE);
 821                 }
 822 }
 823
 824
 825 static void image_osd_free(OverlayStateData *osd)
 826 {
 827         if (!osd) return;
 828
 829         if (osd->idle_id) g_source_remove(osd->idle_id);
 830         if (osd->timer_id) g_source_remove(osd->timer_id);
 831
 832         file_data_unregister_notify_func(image_osd_notify_cb, osd);
 833
 834         if (osd->imd)
 835                 {
 836                 image_set_osd_data(osd->imd, NULL);
 837                 g_signal_handler_disconnect(osd->imd->pr, osd->destroy_id);
 838
 839                 image_set_state_func(osd->imd, NULL, NULL);
 840
 841                 image_osd_info_hide(osd);
 842                 image_osd_icons_hide(osd);
 843                 }
 844
 845         if (osd->histogram) histogram_free(osd->histogram);
 846
 847         g_free(osd);
 848 }
 849
 850 static void image_osd_destroy_cb(GtkWidget *widget, gpointer data)
 851 {
 852         OverlayStateData *osd = data;
 853
 854         osd->imd = NULL;
 855         image_osd_free(osd);
 856 }
 857
 858 static void image_osd_enable(ImageWindow *imd, OsdShowFlags show)
 859 {
 860         OverlayStateData *osd = image_get_osd_data(imd);
 861
 862         if (!osd)
 863                 {
 864                 osd = g_new0(OverlayStateData, 1);
 865                 osd->imd = imd;
 866                 osd->show = OSD_SHOW_NOTHING;
 867                 osd->x = options->image_overlay.x;
 868                 osd->y = options->image_overlay.y;
 869                 osd->origin = OVL_RELATIVE;
 870
 871                 osd->histogram = histogram_new();
 872
 873                 osd->destroy_id = g_signal_connect(G_OBJECT(imd->pr), "destroy",
 874                                                    G_CALLBACK(image_osd_destroy_cb), osd);
 875                 image_set_osd_data(imd, osd);
 876
 877                 image_set_state_func(osd->imd, image_osd_state_cb, osd);
 878                 file_data_register_notify_func(image_osd_notify_cb, osd, NOTIFY_PRIORITY_LOW);
 879                 }
 880
 881         if (show & OSD_SHOW_STATUS)
 882                 image_osd_icon(imd, IMAGE_OSD_ICON, -1);
 883
 884         if (show != osd->show)
 885                 image_osd_update_schedule(osd, TRUE);
 886
 887         osd->show = show;
 888 }
 889
 890 void image_osd_set(ImageWindow *imd, OsdShowFlags show)
 891 {
 892         if (!imd) return;
 893
 894         image_osd_enable(imd, show);
 895 }
 896
 897 OsdShowFlags image_osd_get(ImageWindow *imd)
 898 {
 899         OverlayStateData *osd = image_get_osd_data(imd);
 900
 901         return osd ? osd->show : OSD_SHOW_NOTHING;
 902 }
 903
 904 Histogram *image_osd_get_histogram(ImageWindow *imd)
 905 {
 906         OverlayStateData *osd = image_get_osd_data(imd);
 907
 908         return osd ? osd->histogram : NULL;
 909 }
 910
 911 void image_osd_copy_status(ImageWindow *src, ImageWindow *dest)
 912 {
 913         Histogram *h_src, *h_dest;
 914         image_osd_set(dest, image_osd_get(src));
 915
 916         h_src = image_osd_get_histogram(src);
 917         h_dest = image_osd_get_histogram(dest);
 918
 919         h_dest->histogram_mode = h_src->histogram_mode;
 920         h_dest->histogram_channel = h_src->histogram_channel;
 921
 922 }
 923
 924 /* duration:
 925     0 = hide
 926     1 = show
 927    2+ = show for duration tenths of a second
 928    -1 = use default duration
 929  */
 930 void image_osd_icon(ImageWindow *imd, ImageOSDFlag flag, gint duration)
 931 {
 932         OverlayStateData *osd = image_get_osd_data(imd);
 933
 934         if (!osd) return;
 935
 936         if (flag >= IMAGE_OSD_COUNT) return;
 937         if (duration < 0) duration = IMAGE_OSD_DEFAULT_DURATION;
 938         if (duration > 1) duration += 1;
 939
 940         osd->icon_time[flag] = duration;
 941
 942         image_osd_update_schedule(osd, FALSE);
 943         image_osd_timer_schedule(osd);
 944 }
 945 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */