Pileus Git - ~andy/gtk/blob - gtk/gtkcsscomputedvalues.c

   1 /*
   2  * Copyright © 2012 Red Hat Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Authors: Benjamin Otte <otte@gnome.org>
  18  */
  19
  20 #include "config.h"
  21
  22 #include "gtkcsscomputedvaluesprivate.h"
  23
  24 #include "gtkcssanimationprivate.h"
  25 #include "gtkcssarrayvalueprivate.h"
  26 #include "gtkcssenumvalueprivate.h"
  27 #include "gtkcssinheritvalueprivate.h"
  28 #include "gtkcssinitialvalueprivate.h"
  29 #include "gtkcssnumbervalueprivate.h"
  30 #include "gtkcssshorthandpropertyprivate.h"
  31 #include "gtkcssstringvalueprivate.h"
  32 #include "gtkcssstylepropertyprivate.h"
  33 #include "gtkcsstransitionprivate.h"
  34 #include "gtkstyleanimationprivate.h"
  35 #include "gtkstylepropertiesprivate.h"
  36 #include "gtkstylepropertyprivate.h"
  37 #include "gtkstyleproviderprivate.h"
  38
  39 G_DEFINE_TYPE (GtkCssComputedValues, _gtk_css_computed_values, G_TYPE_OBJECT)
  40
  41 static void
  42 gtk_css_computed_values_dispose (GObject *object)
  43 {
  44   GtkCssComputedValues *values = GTK_CSS_COMPUTED_VALUES (object);
  45
  46   if (values->values)
  47     {
  48       g_ptr_array_unref (values->values);
  49       values->values = NULL;
  50     }
  51   if (values->sections)
  52     {
  53       g_ptr_array_unref (values->sections);
  54       values->sections = NULL;
  55     }
  56   if (values->animated_values)
  57     {
  58       g_ptr_array_unref (values->animated_values);
  59       values->animated_values = NULL;
  60     }
  61
  62   g_slist_free_full (values->animations, g_object_unref);
  63   values->animations = NULL;
  64
  65   G_OBJECT_CLASS (_gtk_css_computed_values_parent_class)->dispose (object);
  66 }
  67
  68 static void
  69 gtk_css_computed_values_finalize (GObject *object)
  70 {
  71   GtkCssComputedValues *values = GTK_CSS_COMPUTED_VALUES (object);
  72
  73   _gtk_bitmask_free (values->depends_on_parent);
  74   _gtk_bitmask_free (values->equals_parent);
  75   _gtk_bitmask_free (values->depends_on_color);
  76   _gtk_bitmask_free (values->depends_on_font_size);
  77
  78   G_OBJECT_CLASS (_gtk_css_computed_values_parent_class)->finalize (object);
  79 }
  80
  81 static void
  82 _gtk_css_computed_values_class_init (GtkCssComputedValuesClass *klass)
  83 {
  84   GObjectClass *object_class = G_OBJECT_CLASS (klass);
  85
  86   object_class->dispose = gtk_css_computed_values_dispose;
  87   object_class->finalize = gtk_css_computed_values_finalize;
  88 }
  89
  90 static void
  91 _gtk_css_computed_values_init (GtkCssComputedValues *values)
  92 {
  93   values->depends_on_parent = _gtk_bitmask_new ();
  94   values->equals_parent = _gtk_bitmask_new ();
  95   values->depends_on_color = _gtk_bitmask_new ();
  96   values->depends_on_font_size = _gtk_bitmask_new ();
  97 }
  98
  99 GtkCssComputedValues *
 100 _gtk_css_computed_values_new (void)
 101 {
 102   return g_object_new (GTK_TYPE_CSS_COMPUTED_VALUES, NULL);
 103 }
 104
 105 static void
 106 maybe_unref_section (gpointer section)
 107 {
 108   if (section)
 109     gtk_css_section_unref (section);
 110 }
 111
 112 void
 113 _gtk_css_computed_values_compute_value (GtkCssComputedValues    *values,
 114                                         GtkStyleProviderPrivate *provider,
 115                                         GtkCssComputedValues    *parent_values,
 116                                         guint                    id,
 117                                         GtkCssValue             *specified,
 118                                         GtkCssSection           *section)
 119 {
 120   GtkCssDependencies dependencies;
 121   GtkCssValue *value;
 122
 123   g_return_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values));
 124   g_return_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider));
 125   g_return_if_fail (parent_values == NULL || GTK_IS_CSS_COMPUTED_VALUES (parent_values));
 126
 127   /* http://www.w3.org/TR/css3-cascade/#cascade
 128    * Then, for every element, the value for each property can be found
 129    * by following this pseudo-algorithm:
 130    * 1) Identify all declarations that apply to the element
 131    */
 132   if (specified == NULL)
 133     {
 134       GtkCssStyleProperty *prop = _gtk_css_style_property_lookup_by_id (id);
 135
 136       if (_gtk_css_style_property_is_inherit (prop))
 137         specified = _gtk_css_inherit_value_new ();
 138       else
 139         specified = _gtk_css_initial_value_new ();
 140     }
 141   else
 142     _gtk_css_value_ref (specified);
 143
 144   value = _gtk_css_value_compute (specified, id, provider, values, parent_values, &dependencies);
 145
 146   _gtk_css_computed_values_set_value (values, id, value, dependencies, section);
 147
 148   _gtk_css_value_unref (value);
 149   _gtk_css_value_unref (specified);
 150 }
 151
 152 void
 153 _gtk_css_computed_values_set_animated_value (GtkCssComputedValues *values,
 154                                              guint                 id,
 155                                              GtkCssValue          *value)
 156 {
 157   g_return_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values));
 158   g_return_if_fail (value != NULL);
 159
 160   if (values->animated_values == NULL)
 161     values->animated_values = g_ptr_array_new_with_free_func ((GDestroyNotify)_gtk_css_value_unref);
 162   if (id >= values->animated_values->len)
 163    g_ptr_array_set_size (values->animated_values, id + 1);
 164
 165   if (g_ptr_array_index (values->animated_values, id))
 166     _gtk_css_value_unref (g_ptr_array_index (values->animated_values, id));
 167   g_ptr_array_index (values->animated_values, id) = _gtk_css_value_ref (value);
 168
 169 }
 170
 171 void
 172 _gtk_css_computed_values_set_value (GtkCssComputedValues *values,
 173                                     guint                 id,
 174                                     GtkCssValue          *value,
 175                                     GtkCssDependencies    dependencies,
 176                                     GtkCssSection        *section)
 177 {
 178   g_return_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values));
 179
 180   if (values->values == NULL)
 181     values->values = g_ptr_array_new_with_free_func ((GDestroyNotify)_gtk_css_value_unref);
 182   if (id >= values->values->len)
 183    g_ptr_array_set_size (values->values, id + 1);
 184
 185   if (g_ptr_array_index (values->values, id))
 186     _gtk_css_value_unref (g_ptr_array_index (values->values, id));
 187   g_ptr_array_index (values->values, id) = _gtk_css_value_ref (value);
 188
 189   if (dependencies & (GTK_CSS_DEPENDS_ON_PARENT | GTK_CSS_EQUALS_PARENT))
 190     values->depends_on_parent = _gtk_bitmask_set (values->depends_on_parent, id, TRUE);
 191   if (dependencies & (GTK_CSS_EQUALS_PARENT))
 192     values->equals_parent = _gtk_bitmask_set (values->equals_parent, id, TRUE);
 193   if (dependencies & (GTK_CSS_DEPENDS_ON_COLOR))
 194     values->depends_on_color = _gtk_bitmask_set (values->depends_on_color, id, TRUE);
 195   if (dependencies & (GTK_CSS_DEPENDS_ON_FONT_SIZE))
 196     values->depends_on_font_size = _gtk_bitmask_set (values->depends_on_font_size, id, TRUE);
 197
 198   if (section)
 199     {
 200       if (values->sections == NULL)
 201         values->sections = g_ptr_array_new_with_free_func (maybe_unref_section);
 202       if (values->sections->len <= id)
 203         g_ptr_array_set_size (values->sections, id + 1);
 204
 205       g_ptr_array_index (values->sections, id) = gtk_css_section_ref (section);
 206     }
 207 }
 208
 209 GtkCssValue *
 210 _gtk_css_computed_values_get_value (GtkCssComputedValues *values,
 211                                     guint                 id)
 212 {
 213   g_return_val_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values), NULL);
 214
 215   if (values->animated_values &&
 216       id < values->animated_values->len &&
 217       g_ptr_array_index (values->animated_values, id))
 218     return g_ptr_array_index (values->animated_values, id);
 219
 220   return _gtk_css_computed_values_get_intrinsic_value (values, id);
 221 }
 222
 223 GtkCssValue *
 224 _gtk_css_computed_values_get_intrinsic_value (GtkCssComputedValues *values,
 225                                               guint                 id)
 226 {
 227   g_return_val_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values), NULL);
 228
 229   if (values->values == NULL ||
 230       id >= values->values->len)
 231     return NULL;
 232
 233   return g_ptr_array_index (values->values, id);
 234 }
 235
 236 GtkCssSection *
 237 _gtk_css_computed_values_get_section (GtkCssComputedValues *values,
 238                                       guint                 id)
 239 {
 240   g_return_val_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values), NULL);
 241
 242   if (values->sections == NULL ||
 243       id >= values->sections->len)
 244     return NULL;
 245
 246   return g_ptr_array_index (values->sections, id);
 247 }
 248
 249 GtkBitmask *
 250 _gtk_css_computed_values_get_difference (GtkCssComputedValues *values,
 251                                          GtkCssComputedValues *other)
 252 {
 253   GtkBitmask *result;
 254   guint i, len;
 255
 256   len = MIN (values->values->len, other->values->len);
 257   result = _gtk_bitmask_new ();
 258   if (values->values->len != other->values->len)
 259     result = _gtk_bitmask_invert_range (result, len, MAX (values->values->len, other->values->len));
 260
 261   for (i = 0; i < len; i++)
 262     {
 263       if (!_gtk_css_value_equal (g_ptr_array_index (values->values, i),
 264                                  g_ptr_array_index (other->values, i)))
 265         result = _gtk_bitmask_set (result, i, TRUE);
 266     }
 267
 268   return result;
 269 }
 270
 271 /* TRANSITIONS */
 272
 273 typedef struct _TransitionInfo TransitionInfo;
 274 struct _TransitionInfo {
 275   guint index;                  /* index into value arrays */
 276   gboolean pending;             /* TRUE if we still need to handle it */
 277 };
 278
 279 static void
 280 transition_info_add (TransitionInfo    infos[GTK_CSS_PROPERTY_N_PROPERTIES],
 281                      GtkStyleProperty *property,
 282                      guint             index)
 283 {
 284   if (property == NULL)
 285     {
 286       guint i;
 287
 288       for (i = 0; i < _gtk_css_style_property_get_n_properties (); i++)
 289         {
 290           GtkCssStyleProperty *prop = _gtk_css_style_property_lookup_by_id (i);
 291
 292           transition_info_add (infos, GTK_STYLE_PROPERTY (prop), index);
 293         }
 294     }
 295   else if (GTK_IS_CSS_SHORTHAND_PROPERTY (property))
 296     {
 297       GtkCssShorthandProperty *shorthand = GTK_CSS_SHORTHAND_PROPERTY (property);
 298       guint i;
 299
 300       for (i = 0; i < _gtk_css_shorthand_property_get_n_subproperties (shorthand); i++)
 301         {
 302           GtkCssStyleProperty *prop = _gtk_css_shorthand_property_get_subproperty (shorthand, i);
 303
 304           transition_info_add (infos, GTK_STYLE_PROPERTY (prop), index);
 305         }
 306     }
 307   else if (GTK_IS_CSS_STYLE_PROPERTY (property))
 308     {
 309       guint id;
 310
 311       if (!_gtk_css_style_property_is_animated (GTK_CSS_STYLE_PROPERTY (property)))
 312         return;
 313
 314       id = _gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (property));
 315       g_assert (id < GTK_CSS_PROPERTY_N_PROPERTIES);
 316       infos[id].index = index;
 317       infos[id].pending = TRUE;
 318     }
 319   else
 320     {
 321       g_assert_not_reached ();
 322     }
 323 }
 324
 325 static void
 326 transition_infos_set (TransitionInfo  infos[GTK_CSS_PROPERTY_N_PROPERTIES],
 327                       GtkCssValue    *transitions)
 328 {
 329   guint i;
 330
 331   for (i = 0; i < _gtk_css_array_value_get_n_values (transitions); i++)
 332     {
 333       GtkStyleProperty *property;
 334       GtkCssValue *prop_value;
 335
 336       prop_value = _gtk_css_array_value_get_nth (transitions, i);
 337       if (g_ascii_strcasecmp (_gtk_css_ident_value_get (prop_value), "all") == 0)
 338         property = NULL;
 339       else
 340         {
 341           property = _gtk_style_property_lookup (_gtk_css_ident_value_get (prop_value));
 342           if (property == NULL)
 343             continue;
 344         }
 345
 346       transition_info_add (infos, property, i);
 347     }
 348 }
 349
 350 static GtkStyleAnimation *
 351 gtk_css_computed_values_find_transition (GtkCssComputedValues *values,
 352                                          guint                 property_id)
 353 {
 354   GSList *list;
 355
 356   for (list = values->animations; list; list = list->next)
 357     {
 358       if (!GTK_IS_CSS_TRANSITION (list->data))
 359         continue;
 360
 361       if (_gtk_css_transition_get_property (list->data) == property_id)
 362         return list->data;
 363     }
 364
 365   return NULL;
 366 }
 367
 368 static void
 369 gtk_css_computed_values_create_css_transitions (GtkCssComputedValues *values,
 370                                                 gint64                timestamp,
 371                                                 GtkCssComputedValues *source)
 372 {
 373   TransitionInfo transitions[GTK_CSS_PROPERTY_N_PROPERTIES] = { { 0, } };
 374   GtkCssValue *durations, *delays, *timing_functions;
 375   guint i;
 376
 377   transition_infos_set (transitions, _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_TRANSITION_PROPERTY));
 378
 379   durations = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_TRANSITION_DURATION);
 380   delays = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_TRANSITION_DELAY);
 381   timing_functions = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_TRANSITION_TIMING_FUNCTION);
 382
 383   for (i = 0; i < GTK_CSS_PROPERTY_N_PROPERTIES; i++)
 384     {
 385       GtkStyleAnimation *animation;
 386       GtkCssValue *start, *end;
 387       double duration, delay;
 388
 389       if (!transitions[i].pending)
 390         continue;
 391
 392       duration = _gtk_css_number_value_get (_gtk_css_array_value_get_nth (durations, transitions[i].index), 100);
 393       delay = _gtk_css_number_value_get (_gtk_css_array_value_get_nth (delays, transitions[i].index), 100);
 394       if (duration + delay == 0.0)
 395         continue;
 396
 397       start = _gtk_css_computed_values_get_intrinsic_value (source, i);
 398       end = _gtk_css_computed_values_get_intrinsic_value (values, i);
 399       if (_gtk_css_value_equal (start, end))
 400         {
 401           animation = gtk_css_computed_values_find_transition (GTK_CSS_COMPUTED_VALUES (source), i);
 402           if (animation)
 403             values->animations = g_slist_prepend (values->animations, g_object_ref (animation));
 404         }
 405       else
 406         {
 407           animation = _gtk_css_transition_new (i,
 408                                                start,
 409                                                end,
 410                                                _gtk_css_array_value_get_nth (timing_functions, i),
 411                                                timestamp + delay * G_USEC_PER_SEC,
 412                                                timestamp + (delay + duration) * G_USEC_PER_SEC);
 413           values->animations = g_slist_prepend (values->animations, animation);
 414         }
 415     }
 416 }
 417
 418 static GtkStyleAnimation *
 419 gtk_css_computed_values_find_animation (GtkCssComputedValues *values,
 420                                         const char           *name)
 421 {
 422   GSList *list;
 423
 424   for (list = values->animations; list; list = list->next)
 425     {
 426       if (!GTK_IS_CSS_ANIMATION (list->data))
 427         continue;
 428
 429       if (g_str_equal (_gtk_css_animation_get_name (list->data), name))
 430         return list->data;
 431     }
 432
 433   return NULL;
 434 }
 435
 436 static void
 437 gtk_css_computed_values_create_css_animations (GtkCssComputedValues    *values,
 438                                                GtkCssComputedValues    *parent_values,
 439                                                gint64                   timestamp,
 440                                                GtkStyleProviderPrivate *provider,
 441                                                GtkCssComputedValues    *source)
 442 {
 443   GtkCssValue *durations, *delays, *timing_functions, *animations;
 444   GtkCssValue *iteration_counts, *directions, *play_states, *fill_modes;
 445   guint i;
 446
 447   animations = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_ANIMATION_NAME);
 448   durations = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_ANIMATION_DURATION);
 449   delays = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_ANIMATION_DELAY);
 450   timing_functions = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_ANIMATION_TIMING_FUNCTION);
 451   iteration_counts = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_ANIMATION_ITERATION_COUNT);
 452   directions = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_ANIMATION_DIRECTION);
 453   play_states = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_ANIMATION_PLAY_STATE);
 454   fill_modes = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_ANIMATION_FILL_MODE);
 455
 456   for (i = 0; i < _gtk_css_array_value_get_n_values (animations); i++)
 457     {
 458       GtkStyleAnimation *animation;
 459       GtkCssKeyframes *keyframes;
 460       const char *name;
 461
 462       name = _gtk_css_ident_value_get (_gtk_css_array_value_get_nth (animations, i));
 463       if (g_ascii_strcasecmp (name, "none") == 0)
 464         continue;
 465
 466       animation = gtk_css_computed_values_find_animation (values, name);
 467       if (animation)
 468         continue;
 469
 470       if (source)
 471         animation = gtk_css_computed_values_find_animation (source, name);
 472
 473       if (animation)
 474         {
 475           animation = _gtk_css_animation_copy (GTK_CSS_ANIMATION (animation),
 476                                                timestamp,
 477                                                _gtk_css_play_state_value_get (_gtk_css_array_value_get_nth (play_states, i)));
 478         }
 479       else
 480         {
 481           keyframes = _gtk_style_provider_private_get_keyframes (provider, name);
 482           if (keyframes == NULL)
 483             continue;
 484
 485           keyframes = _gtk_css_keyframes_compute (keyframes, provider, values, parent_values);
 486
 487           animation = _gtk_css_animation_new (name,
 488                                               keyframes,
 489                                               timestamp,
 490                                               _gtk_css_number_value_get (_gtk_css_array_value_get_nth (delays, i), 100) * G_USEC_PER_SEC,
 491                                               _gtk_css_number_value_get (_gtk_css_array_value_get_nth (durations, i), 100) * G_USEC_PER_SEC,
 492                                               _gtk_css_array_value_get_nth (timing_functions, i),
 493                                               _gtk_css_direction_value_get (_gtk_css_array_value_get_nth (directions, i)),
 494                                               _gtk_css_play_state_value_get (_gtk_css_array_value_get_nth (play_states, i)),
 495                                               _gtk_css_fill_mode_value_get (_gtk_css_array_value_get_nth (fill_modes, i)),
 496                                               _gtk_css_number_value_get (_gtk_css_array_value_get_nth (iteration_counts, i), 100));
 497         }
 498       values->animations = g_slist_prepend (values->animations, animation);
 499     }
 500 }
 501
 502 /* PUBLIC API */
 503
 504 void
 505 _gtk_css_computed_values_create_animations (GtkCssComputedValues    *values,
 506                                             GtkCssComputedValues    *parent_values,
 507                                             gint64                   timestamp,
 508                                             GtkStyleProviderPrivate *provider,
 509                                             GtkCssComputedValues    *source)
 510 {
 511   if (source != NULL)
 512     gtk_css_computed_values_create_css_transitions (values, timestamp, source);
 513   gtk_css_computed_values_create_css_animations (values, parent_values, timestamp, provider, source);
 514 }
 515
 516 GtkBitmask *
 517 _gtk_css_computed_values_advance (GtkCssComputedValues *values,
 518                                   gint64                timestamp)
 519 {
 520   GtkBitmask *changed;
 521   GPtrArray *old_computed_values;
 522   GSList *list;
 523   guint i;
 524
 525   g_return_val_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values), NULL);
 526   g_return_val_if_fail (timestamp >= values->current_time, NULL);
 527
 528   values->current_time = timestamp;
 529   old_computed_values = values->animated_values;
 530   values->animated_values = NULL;
 531
 532   list = values->animations;
 533   while (list)
 534     {
 535       GtkStyleAnimation *animation = list->data;
 536
 537       list = list->next;
 538
 539       _gtk_style_animation_set_values (animation,
 540                                        timestamp,
 541                                        GTK_CSS_COMPUTED_VALUES (values));
 542
 543       if (_gtk_style_animation_is_finished (animation, timestamp))
 544         {
 545           values->animations = g_slist_remove (values->animations, animation);
 546           g_object_unref (animation);
 547         }
 548     }
 549
 550   /* figure out changes */
 551   changed = _gtk_bitmask_new ();
 552
 553   for (i = 0; i < GTK_CSS_PROPERTY_N_PROPERTIES; i++)
 554     {
 555       GtkCssValue *old_animated, *new_animated;
 556
 557       old_animated = old_computed_values && i < old_computed_values->len ? g_ptr_array_index (old_computed_values, i) : NULL;
 558       new_animated = values->animated_values && i < values->animated_values->len ? g_ptr_array_index (values->animated_values, i) : NULL;
 559
 560       if (!_gtk_css_value_equal0 (old_animated, new_animated))
 561         changed = _gtk_bitmask_set (changed, i, TRUE);
 562     }
 563
 564   if (old_computed_values)
 565     g_ptr_array_unref (old_computed_values);
 566
 567   return changed;
 568 }
 569
 570 gboolean
 571 _gtk_css_computed_values_is_static (GtkCssComputedValues *values)
 572 {
 573   GSList *list;
 574
 575   g_return_val_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values), TRUE);
 576
 577   for (list = values->animations; list; list = list->next)
 578     {
 579       if (!_gtk_style_animation_is_static (list->data, values->current_time))
 580         return FALSE;
 581     }
 582
 583   return TRUE;
 584 }
 585
 586 void
 587 _gtk_css_computed_values_cancel_animations (GtkCssComputedValues *values)
 588 {
 589   g_return_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values));
 590
 591   if (values->animated_values)
 592     {
 593       g_ptr_array_unref (values->animated_values);
 594       values->animated_values = NULL;
 595     }
 596
 597   g_slist_free_full (values->animations, g_object_unref);
 598   values->animations = NULL;
 599 }
 600