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

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
   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 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
  18 #include "config.h"
  19
  20 #include "gtkstylepropertyprivate.h"
  21
  22 #include <gobject/gvaluecollector.h>
  23 #include <gdk-pixbuf/gdk-pixbuf.h>
  24 #include <cairo-gobject.h>
  25 #include <math.h>
  26
  27 #include "gtkcssparserprivate.h"
  28 #include "gtkcssstylefuncsprivate.h"
  29 #include "gtkcssstylepropertyprivate.h"
  30 #include "gtkcsstypesprivate.h"
  31 #include "gtkintl.h"
  32 #include "gtkprivatetypebuiltins.h"
  33 #include "gtkstylepropertiesprivate.h"
  34
  35 /* this is in case round() is not provided by the compiler,
  36  * such as in the case of C89 compilers, like MSVC
  37  */
  38 #include "fallback-c89.c"
  39
  40 /* the actual parsers we have */
  41 #include "gtkanimationdescription.h"
  42 #include "gtkbindings.h"
  43 #include "gtkcssimageprivate.h"
  44 #include "gtkgradient.h"
  45 #include "gtkshadowprivate.h"
  46 #include "gtksymboliccolorprivate.h"
  47 #include "gtkthemingengine.h"
  48 #include "gtktypebuiltins.h"
  49 #include "gtkwin32themeprivate.h"
  50
  51 /*** REGISTRATION ***/
  52
  53 static void
  54 gtk_css_style_property_register (const char *                   name,
  55                                  GType                          specified_type,
  56                                  GType                          computed_type,
  57                                  GType                          value_type,
  58                                  GtkStylePropertyFlags          flags,
  59                                  GtkCssStylePropertyParseFunc   parse_value,
  60                                  GtkCssStylePropertyPrintFunc   print_value,
  61                                  GtkCssStylePropertyComputeFunc compute_value,
  62                                  ...)
  63 {
  64   GtkCssStyleProperty *node;
  65   GValue initial_gvalue = G_VALUE_INIT;
  66   GtkCssValue *initial_value;
  67   char *error = NULL;
  68   va_list args;
  69
  70   va_start (args, compute_value);
  71   G_VALUE_COLLECT_INIT (&initial_gvalue, specified_type,
  72                         args, 0, &error);
  73   if (error)
  74     {
  75       g_error ("property `%s' initial value is broken: %s", name, error);
  76       g_value_unset (&initial_gvalue);
  77       return;
  78     }
  79
  80   va_end (args);
  81
  82   initial_value = _gtk_css_value_new_take_gvalue (&initial_gvalue);
  83
  84   node = g_object_new (GTK_TYPE_CSS_STYLE_PROPERTY,
  85                        "value-type", value_type,
  86                        "computed-type", computed_type,
  87                        "inherit", (flags & GTK_STYLE_PROPERTY_INHERIT) ? TRUE : FALSE,
  88                        "initial-value", initial_value,
  89                        "name", name,
  90                        NULL);
  91
  92   if (parse_value)
  93     node->parse_value = parse_value;
  94   if (print_value)
  95     node->print_value = print_value;
  96   if (compute_value)
  97     node->compute_value = compute_value;
  98
  99   _gtk_css_value_unref (initial_value);
 100 }
 101
 102 /*** HELPERS ***/
 103
 104 static void
 105 string_append_string (GString    *str,
 106                       const char *string)
 107 {
 108   gsize len;
 109
 110   g_string_append_c (str, '"');
 111
 112   do {
 113     len = strcspn (string, "\"\n\r\f");
 114     g_string_append (str, string);
 115     string += len;
 116     switch (*string)
 117       {
 118       case '\0':
 119         break;
 120       case '\n':
 121         g_string_append (str, "\\A ");
 122         break;
 123       case '\r':
 124         g_string_append (str, "\\D ");
 125         break;
 126       case '\f':
 127         g_string_append (str, "\\C ");
 128         break;
 129       case '\"':
 130         g_string_append (str, "\\\"");
 131         break;
 132       default:
 133         g_assert_not_reached ();
 134         break;
 135       }
 136   } while (*string);
 137
 138   g_string_append_c (str, '"');
 139 }
 140
 141 /*** IMPLEMENTATIONS ***/
 142
 143 static GtkCssValue *
 144 color_compute (GtkCssStyleProperty    *property,
 145                GtkStyleContext        *context,
 146                GtkCssValue            *specified)
 147 {
 148   GtkSymbolicColor *symbolic = _gtk_css_value_get_symbolic_color (specified);
 149   GtkCssValue *resolved;
 150
 151   if (symbolic == _gtk_symbolic_color_get_current_color ())
 152     {
 153       /* The computed value of the ‘currentColor’ keyword is the computed
 154        * value of the ‘color’ property. If the ‘currentColor’ keyword is
 155        * set on the ‘color’ property itself, it is treated as ‘color: inherit’.
 156        */
 157       if (g_str_equal (_gtk_style_property_get_name (GTK_STYLE_PROPERTY (property)), "color"))
 158         {
 159           GtkStyleContext *parent = gtk_style_context_get_parent (context);
 160
 161           if (parent)
 162             return _gtk_css_value_ref (_gtk_style_context_peek_property (parent, "color"));
 163           else
 164             return _gtk_css_style_compute_value (context,
 165                                                  GDK_TYPE_RGBA,
 166                                                  _gtk_css_style_property_get_initial_value (property));
 167         }
 168       else
 169         {
 170           return _gtk_css_value_ref (_gtk_style_context_peek_property (context, "color"));
 171         }
 172     }
 173   else if ((resolved = _gtk_style_context_resolve_color_value (context,
 174                                                                symbolic)) != NULL)
 175     {
 176       return resolved;
 177     }
 178   else
 179     {
 180       return color_compute (property,
 181                             context,
 182                             _gtk_css_style_property_get_initial_value (property));
 183     }
 184 }
 185
 186 static gboolean
 187 font_family_parse (GtkCssStyleProperty *property,
 188                    GValue              *value,
 189                    GtkCssParser        *parser,
 190                    GFile               *base)
 191 {
 192   GPtrArray *names;
 193   char *name;
 194
 195   /* We don't special case generic families. Pango should do
 196    * that for us */
 197
 198   names = g_ptr_array_new ();
 199
 200   do {
 201     name = _gtk_css_parser_try_ident (parser, TRUE);
 202     if (name)
 203       {
 204         GString *string = g_string_new (name);
 205         g_free (name);
 206         while ((name = _gtk_css_parser_try_ident (parser, TRUE)))
 207           {
 208             g_string_append_c (string, ' ');
 209             g_string_append (string, name);
 210             g_free (name);
 211           }
 212         name = g_string_free (string, FALSE);
 213       }
 214     else
 215       {
 216         name = _gtk_css_parser_read_string (parser);
 217         if (name == NULL)
 218           {
 219             g_ptr_array_free (names, TRUE);
 220             return FALSE;
 221           }
 222       }
 223
 224     g_ptr_array_add (names, name);
 225   } while (_gtk_css_parser_try (parser, ",", TRUE));
 226
 227   /* NULL-terminate array */
 228   g_ptr_array_add (names, NULL);
 229   g_value_set_boxed (value, g_ptr_array_free (names, FALSE));
 230   return TRUE;
 231 }
 232
 233 static void
 234 font_family_value_print (GtkCssStyleProperty *property,
 235                          const GValue        *value,
 236                          GString             *string)
 237 {
 238   const char **names = g_value_get_boxed (value);
 239
 240   if (names == NULL || *names == NULL)
 241     {
 242       g_string_append (string, "none");
 243       return;
 244     }
 245
 246   string_append_string (string, *names);
 247   names++;
 248   while (*names)
 249     {
 250       g_string_append (string, ", ");
 251       string_append_string (string, *names);
 252       names++;
 253     }
 254 }
 255
 256 static gboolean
 257 bindings_value_parse (GtkCssStyleProperty *property,
 258                       GValue              *value,
 259                       GtkCssParser        *parser,
 260                       GFile               *base)
 261 {
 262   GPtrArray *array;
 263   GtkBindingSet *binding_set;
 264   char *name;
 265
 266   array = g_ptr_array_new ();
 267
 268   do {
 269       name = _gtk_css_parser_try_ident (parser, TRUE);
 270       if (name == NULL)
 271         {
 272           _gtk_css_parser_error (parser, "Not a valid binding name");
 273           g_ptr_array_free (array, TRUE);
 274           return FALSE;
 275         }
 276
 277       binding_set = gtk_binding_set_find (name);
 278
 279       if (!binding_set)
 280         {
 281           _gtk_css_parser_error (parser, "No binding set named '%s'", name);
 282           g_free (name);
 283           continue;
 284         }
 285
 286       g_ptr_array_add (array, binding_set);
 287       g_free (name);
 288     }
 289   while (_gtk_css_parser_try (parser, ",", TRUE));
 290
 291   g_value_take_boxed (value, array);
 292
 293   return TRUE;
 294 }
 295
 296 static void
 297 bindings_value_print (GtkCssStyleProperty *property,
 298                       const GValue        *value,
 299                       GString             *string)
 300 {
 301   GPtrArray *array;
 302   guint i;
 303
 304   array = g_value_get_boxed (value);
 305
 306   for (i = 0; i < array->len; i++)
 307     {
 308       GtkBindingSet *binding_set = g_ptr_array_index (array, i);
 309
 310       if (i > 0)
 311         g_string_append (string, ", ");
 312       g_string_append (string, binding_set->set_name);
 313     }
 314 }
 315
 316 static gboolean
 317 border_corner_radius_value_parse (GtkCssStyleProperty *property,
 318                                   GValue              *value,
 319                                   GtkCssParser        *parser,
 320                                   GFile               *base)
 321 {
 322   GtkCssBorderCornerRadius corner;
 323
 324   if (!_gtk_css_parser_read_number (parser,
 325                                     &corner.horizontal,
 326                                     GTK_CSS_POSITIVE_ONLY
 327                                     | GTK_CSS_PARSE_PERCENT
 328                                     | GTK_CSS_NUMBER_AS_PIXELS
 329                                     | GTK_CSS_PARSE_LENGTH))
 330     return FALSE;
 331
 332   if (!_gtk_css_parser_has_number (parser))
 333     corner.vertical = corner.horizontal;
 334   else if (!_gtk_css_parser_read_number (parser,
 335                                          &corner.vertical,
 336                                          GTK_CSS_POSITIVE_ONLY
 337                                          | GTK_CSS_PARSE_PERCENT
 338                                          | GTK_CSS_NUMBER_AS_PIXELS
 339                                          | GTK_CSS_PARSE_LENGTH))
 340     return FALSE;
 341
 342   g_value_set_boxed (value, &corner);
 343   return TRUE;
 344 }
 345
 346 static void
 347 border_corner_radius_value_print (GtkCssStyleProperty *property,
 348                                   const GValue        *value,
 349                                   GString             *string)
 350 {
 351   GtkCssBorderCornerRadius *corner;
 352
 353   corner = g_value_get_boxed (value);
 354
 355   _gtk_css_number_print (&corner->horizontal, string);
 356
 357   if (!_gtk_css_number_equal (&corner->horizontal, &corner->vertical))
 358     {
 359       g_string_append_c (string, ' ');
 360       _gtk_css_number_print (&corner->vertical, string);
 361     }
 362 }
 363
 364 static gboolean
 365 css_image_value_parse (GtkCssStyleProperty *property,
 366                        GValue              *value,
 367                        GtkCssParser        *parser,
 368                        GFile               *base)
 369 {
 370   GtkCssImage *image;
 371
 372   if (_gtk_css_parser_try (parser, "none", TRUE))
 373     image = NULL;
 374   else
 375     {
 376       image = _gtk_css_image_new_parse (parser, base);
 377       if (image == NULL)
 378         return FALSE;
 379     }
 380
 381   g_value_take_object (value, image);
 382   return TRUE;
 383 }
 384
 385 static void
 386 css_image_value_print (GtkCssStyleProperty *property,
 387                        const GValue        *value,
 388                        GString             *string)
 389 {
 390   GtkCssImage *image = g_value_get_object (value);
 391
 392   if (image)
 393     _gtk_css_image_print (image, string);
 394   else
 395     g_string_append (string, "none");
 396 }
 397
 398 static GtkCssValue *
 399 css_image_value_compute (GtkCssStyleProperty    *property,
 400                          GtkStyleContext        *context,
 401                          GtkCssValue            *specified)
 402 {
 403   GtkCssImage *image = _gtk_css_value_get_image (specified);
 404
 405   if (image)
 406     image = _gtk_css_image_compute (image, context);
 407
 408   return _gtk_css_value_new_take_image (image);
 409 }
 410
 411 static gboolean
 412 parse_margin (GtkCssStyleProperty *property,
 413               GValue              *value,
 414               GtkCssParser        *parser,
 415               GFile               *base)
 416 {
 417   GtkCssNumber number;
 418
 419   if (!_gtk_css_parser_read_number (parser,
 420                                     &number,
 421                                     GTK_CSS_NUMBER_AS_PIXELS
 422                                     | GTK_CSS_PARSE_LENGTH))
 423     return FALSE;
 424
 425   g_value_set_boxed (value, &number);
 426   return TRUE;
 427 }
 428
 429 static GtkCssValue *
 430 compute_margin (GtkCssStyleProperty *property,
 431                 GtkStyleContext     *context,
 432                 GtkCssValue         *specified)
 433 {
 434   GtkCssNumber number;
 435
 436   if (_gtk_css_number_compute (&number,
 437                                _gtk_css_value_get_number (specified),
 438                                context))
 439     {
 440       return _gtk_css_value_new_from_number (&number);
 441     }
 442   return  _gtk_css_value_ref (specified);
 443 }
 444
 445 static gboolean
 446 parse_padding (GtkCssStyleProperty *property,
 447                GValue              *value,
 448                GtkCssParser        *parser,
 449                GFile               *base)
 450 {
 451   GtkCssNumber number;
 452
 453   if (!_gtk_css_parser_read_number (parser,
 454                                     &number,
 455                                     GTK_CSS_POSITIVE_ONLY
 456                                     | GTK_CSS_NUMBER_AS_PIXELS
 457                                     | GTK_CSS_PARSE_LENGTH))
 458     return FALSE;
 459
 460   g_value_set_boxed (value, &number);
 461   return TRUE;
 462 }
 463
 464 static GtkCssValue *
 465 compute_padding (GtkCssStyleProperty *property,
 466                  GtkStyleContext     *context,
 467                  GtkCssValue         *specified)
 468 {
 469   GtkCssNumber number;
 470
 471   if (_gtk_css_number_compute (&number,
 472                                _gtk_css_value_get_number (specified),
 473                                context))
 474     return _gtk_css_value_new_from_number (&number);
 475   return _gtk_css_value_ref (specified);
 476 }
 477
 478 static gboolean
 479 parse_border_width (GtkCssStyleProperty *property,
 480                     GValue              *value,
 481                     GtkCssParser        *parser,
 482                     GFile               *base)
 483 {
 484   GtkCssNumber number;
 485
 486   if (!_gtk_css_parser_read_number (parser,
 487                                     &number,
 488                                     GTK_CSS_POSITIVE_ONLY
 489                                     | GTK_CSS_NUMBER_AS_PIXELS
 490                                     | GTK_CSS_PARSE_LENGTH))
 491     return FALSE;
 492
 493   g_value_set_boxed (value, &number);
 494   return TRUE;
 495 }
 496
 497 static GtkCssValue *
 498 compute_border_width (GtkCssStyleProperty    *property,
 499                       GtkStyleContext        *context,
 500                       GtkCssValue            *specified)
 501 {
 502   GtkCssStyleProperty *style;
 503   GtkBorderStyle border_style;
 504   GtkCssNumber number;
 505   int value = 0;
 506
 507   /* The -1 is magic that is only true because we register the style
 508    * properties directly after the width properties.
 509    */
 510   style = _gtk_css_style_property_lookup_by_id (_gtk_css_style_property_get_id (property) - 1);
 511
 512   border_style = _gtk_css_value_get_border_style (_gtk_style_context_peek_property (context, _gtk_style_property_get_name (GTK_STYLE_PROPERTY (style))));
 513
 514   if (border_style == GTK_BORDER_STYLE_NONE ||
 515       border_style == GTK_BORDER_STYLE_HIDDEN)
 516     {
 517       value = 0;
 518     }
 519   else
 520     {
 521       _gtk_css_number_compute (&number,
 522                                _gtk_css_value_get_number (specified),
 523                                context);
 524       value = round (number.value);
 525     }
 526   return _gtk_css_value_new_from_int (value);
 527 }
 528
 529 static gboolean
 530 background_repeat_value_parse (GtkCssStyleProperty *property,
 531                                GValue              *value,
 532                                GtkCssParser        *parser,
 533                                GFile               *base)
 534 {
 535   int repeat, vertical;
 536
 537   if (!_gtk_css_parser_try_enum (parser, GTK_TYPE_CSS_BACKGROUND_REPEAT, &repeat))
 538     {
 539       _gtk_css_parser_error (parser, "Not a valid value");
 540       return FALSE;
 541     }
 542
 543   if (repeat <= GTK_CSS_BACKGROUND_REPEAT_MASK)
 544     {
 545       if (_gtk_css_parser_try_enum (parser, GTK_TYPE_CSS_BACKGROUND_REPEAT, &vertical))
 546         {
 547           if (vertical >= GTK_CSS_BACKGROUND_REPEAT_MASK)
 548             {
 549               _gtk_css_parser_error (parser, "Not a valid 2nd value");
 550               return FALSE;
 551             }
 552           else
 553             repeat |= vertical << GTK_CSS_BACKGROUND_REPEAT_SHIFT;
 554         }
 555       else
 556         repeat |= repeat << GTK_CSS_BACKGROUND_REPEAT_SHIFT;
 557     }
 558
 559   g_value_set_enum (value, repeat);
 560   return TRUE;
 561 }
 562
 563 static void
 564 background_repeat_value_print (GtkCssStyleProperty *property,
 565                                const GValue        *value,
 566                                GString             *string)
 567 {
 568   GEnumClass *enum_class;
 569   GEnumValue *enum_value;
 570   GtkCssBackgroundRepeat repeat;
 571
 572   repeat = g_value_get_enum (value);
 573   enum_class = g_type_class_ref (GTK_TYPE_CSS_BACKGROUND_REPEAT);
 574   enum_value = g_enum_get_value (enum_class, repeat);
 575
 576   /* only triggers for 'repeat-x' and 'repeat-y' */
 577   if (enum_value)
 578     g_string_append (string, enum_value->value_nick);
 579   else
 580     {
 581       enum_value = g_enum_get_value (enum_class, GTK_CSS_BACKGROUND_HORIZONTAL (repeat));
 582       g_string_append (string, enum_value->value_nick);
 583
 584       if (GTK_CSS_BACKGROUND_HORIZONTAL (repeat) != GTK_CSS_BACKGROUND_VERTICAL (repeat))
 585         {
 586           enum_value = g_enum_get_value (enum_class, GTK_CSS_BACKGROUND_VERTICAL (repeat));
 587           g_string_append (string, " ");
 588           g_string_append (string, enum_value->value_nick);
 589         }
 590     }
 591
 592   g_type_class_unref (enum_class);
 593 }
 594
 595 static gboolean
 596 background_size_parse (GtkCssStyleProperty *property,
 597                        GValue              *value,
 598                        GtkCssParser        *parser,
 599                        GFile               *base)
 600 {
 601   GtkCssBackgroundSize size = { GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), FALSE, FALSE};
 602
 603   if (_gtk_css_parser_try (parser, "cover", TRUE))
 604     size.cover = TRUE;
 605   else if (_gtk_css_parser_try (parser, "contain", TRUE))
 606     size.contain = TRUE;
 607   else
 608     {
 609       if (_gtk_css_parser_try (parser, "auto", TRUE))
 610         _gtk_css_number_init (&size.width, 0, GTK_CSS_PX);
 611       else if (!_gtk_css_parser_read_number (parser,
 612                                              &size.width,
 613                                              GTK_CSS_POSITIVE_ONLY
 614                                              | GTK_CSS_PARSE_PERCENT
 615                                              | GTK_CSS_PARSE_LENGTH))
 616         return FALSE;
 617
 618       if (_gtk_css_parser_try (parser, "auto", TRUE))
 619         _gtk_css_number_init (&size.height, 0, GTK_CSS_PX);
 620       else if (_gtk_css_parser_has_number (parser))
 621         {
 622           if (!_gtk_css_parser_read_number (parser,
 623                                             &size.height,
 624                                             GTK_CSS_POSITIVE_ONLY
 625                                             | GTK_CSS_PARSE_PERCENT
 626                                             | GTK_CSS_PARSE_LENGTH))
 627             return FALSE;
 628         }
 629       else
 630         _gtk_css_number_init (&size.height, 0, GTK_CSS_PX);
 631     }
 632
 633   g_value_set_boxed (value, &size);
 634   return TRUE;
 635 }
 636
 637 static void
 638 background_size_print (GtkCssStyleProperty *property,
 639                        const GValue        *value,
 640                        GString             *string)
 641 {
 642   GtkCssBackgroundSize *size = g_value_get_boxed (value);
 643
 644   if (size->cover)
 645     g_string_append (string, "cover");
 646   else if (size->contain)
 647     g_string_append (string, "contain");
 648   else
 649     {
 650       if (size->width.value == 0)
 651         g_string_append (string, "auto");
 652       else
 653         _gtk_css_number_print (&size->width, string);
 654
 655       if (size->height.value != 0)
 656         {
 657           g_string_append (string, " ");
 658           _gtk_css_number_print (&size->height, string);
 659         }
 660     }
 661 }
 662
 663 static GtkCssValue *
 664 background_size_compute (GtkCssStyleProperty    *property,
 665                          GtkStyleContext        *context,
 666                          GtkCssValue            *specified)
 667 {
 668   GtkCssBackgroundSize *ssize = _gtk_css_value_get_background_size (specified);
 669   GtkCssBackgroundSize csize;
 670   gboolean changed;
 671
 672   csize.cover = ssize->cover;
 673   csize.contain = ssize->contain;
 674   changed = _gtk_css_number_compute (&csize.width,
 675                                      &ssize->width,
 676                                      context);
 677   changed |= _gtk_css_number_compute (&csize.height,
 678                                       &ssize->height,
 679                                       context);
 680   if (changed)
 681     return _gtk_css_value_new_from_background_size (&csize);
 682   return _gtk_css_value_ref (specified);
 683 }
 684
 685 /*** REGISTRATION ***/
 686
 687 static GtkSymbolicColor *
 688 gtk_symbolic_color_new_rgba (double red,
 689                              double green,
 690                              double blue,
 691                              double alpha)
 692 {
 693   GdkRGBA rgba = { red, green, blue, alpha };
 694
 695   return gtk_symbolic_color_new_literal (&rgba);
 696 }
 697
 698 void
 699 _gtk_css_style_property_init_properties (void)
 700 {
 701   char *default_font_family[] = { "Sans", NULL };
 702   GtkCssNumber number;
 703   GtkSymbolicColor *symbolic;
 704   GtkCssBackgroundSize default_background_size = { GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), FALSE, FALSE };
 705   GtkCssBorderCornerRadius no_corner_radius = { GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX) };
 706   GtkBorder border_of_ones = { 1, 1, 1, 1 };
 707   GtkCssBorderImageRepeat border_image_repeat = { GTK_CSS_REPEAT_STYLE_STRETCH, GTK_CSS_REPEAT_STYLE_STRETCH };
 708
 709   /* Initialize "color" and "font-size" first,
 710    * so that when computing values later they are
 711    * done first. That way, 'currentColor' and font
 712    * sizes in em can be looked up properly */
 713   symbolic = gtk_symbolic_color_new_rgba (1, 1, 1, 1);
 714   gtk_css_style_property_register        ("color",
 715                                           GTK_TYPE_SYMBOLIC_COLOR,
 716                                           GDK_TYPE_RGBA,
 717                                           GDK_TYPE_RGBA,
 718                                           GTK_STYLE_PROPERTY_INHERIT,
 719                                           NULL,
 720                                           NULL,
 721                                           color_compute,
 722                                           symbolic);
 723   gtk_symbolic_color_unref (symbolic);
 724   gtk_css_style_property_register        ("font-size",
 725                                           G_TYPE_DOUBLE,
 726                                           G_TYPE_DOUBLE,
 727                                           G_TYPE_DOUBLE,
 728                                           GTK_STYLE_PROPERTY_INHERIT,
 729                                           NULL,
 730                                           NULL,
 731                                           NULL,
 732                                           10.0);
 733
 734   /* properties that aren't referenced when computing values
 735    * start here */
 736   symbolic = gtk_symbolic_color_new_rgba (0, 0, 0, 0);
 737   gtk_css_style_property_register        ("background-color",
 738                                           GTK_TYPE_SYMBOLIC_COLOR,
 739                                           GDK_TYPE_RGBA,
 740                                           GDK_TYPE_RGBA,
 741                                           0,
 742                                           NULL,
 743                                           NULL,
 744                                           color_compute,
 745                                           symbolic);
 746   gtk_symbolic_color_unref (symbolic);
 747
 748   gtk_css_style_property_register        ("font-family",
 749                                           G_TYPE_STRV,
 750                                           G_TYPE_STRV,
 751                                           G_TYPE_STRV,
 752                                           GTK_STYLE_PROPERTY_INHERIT,
 753                                           font_family_parse,
 754                                           font_family_value_print,
 755                                           NULL,
 756                                           default_font_family);
 757   gtk_css_style_property_register        ("font-style",
 758                                           PANGO_TYPE_STYLE,
 759                                           PANGO_TYPE_STYLE,
 760                                           PANGO_TYPE_STYLE,
 761                                           GTK_STYLE_PROPERTY_INHERIT,
 762                                           NULL,
 763                                           NULL,
 764                                           NULL,
 765                                           PANGO_STYLE_NORMAL);
 766   gtk_css_style_property_register        ("font-variant",
 767                                           PANGO_TYPE_VARIANT,
 768                                           PANGO_TYPE_VARIANT,
 769                                           PANGO_TYPE_VARIANT,
 770                                           GTK_STYLE_PROPERTY_INHERIT,
 771                                           NULL,
 772                                           NULL,
 773                                           NULL,
 774                                           PANGO_VARIANT_NORMAL);
 775   /* xxx: need to parse this properly, ie parse the numbers */
 776   gtk_css_style_property_register        ("font-weight",
 777                                           PANGO_TYPE_WEIGHT,
 778                                           PANGO_TYPE_WEIGHT,
 779                                           PANGO_TYPE_WEIGHT,
 780                                           GTK_STYLE_PROPERTY_INHERIT,
 781                                           NULL,
 782                                           NULL,
 783                                           NULL,
 784                                           PANGO_WEIGHT_NORMAL);
 785
 786   gtk_css_style_property_register        ("text-shadow",
 787                                           GTK_TYPE_SHADOW,
 788                                           GTK_TYPE_SHADOW,
 789                                           GTK_TYPE_SHADOW,
 790                                           GTK_STYLE_PROPERTY_INHERIT,
 791                                           NULL,
 792                                           NULL,
 793                                           NULL,
 794                                           NULL);
 795
 796   gtk_css_style_property_register        ("icon-shadow",
 797                                           GTK_TYPE_SHADOW,
 798                                           GTK_TYPE_SHADOW,
 799                                           GTK_TYPE_SHADOW,
 800                                           GTK_STYLE_PROPERTY_INHERIT,
 801                                           NULL,
 802                                           NULL,
 803                                           NULL,
 804                                           NULL);
 805
 806   gtk_css_style_property_register        ("box-shadow",
 807                                           GTK_TYPE_SHADOW,
 808                                           GTK_TYPE_SHADOW,
 809                                           GTK_TYPE_SHADOW,
 810                                           0,
 811                                           NULL,
 812                                           NULL,
 813                                           NULL,
 814                                           NULL);
 815
 816   _gtk_css_number_init (&number, 0, GTK_CSS_PX);
 817   gtk_css_style_property_register        ("margin-top",
 818                                           GTK_TYPE_CSS_NUMBER,
 819                                           GTK_TYPE_CSS_NUMBER,
 820                                           G_TYPE_INT,
 821                                           0,
 822                                           parse_margin,
 823                                           NULL,
 824                                           compute_margin,
 825                                           &number);
 826   gtk_css_style_property_register        ("margin-left",
 827                                           GTK_TYPE_CSS_NUMBER,
 828                                           GTK_TYPE_CSS_NUMBER,
 829                                           G_TYPE_INT,
 830                                           0,
 831                                           parse_margin,
 832                                           NULL,
 833                                           compute_margin,
 834                                           &number);
 835   gtk_css_style_property_register        ("margin-bottom",
 836                                           GTK_TYPE_CSS_NUMBER,
 837                                           GTK_TYPE_CSS_NUMBER,
 838                                           G_TYPE_INT,
 839                                           0,
 840                                           parse_margin,
 841                                           NULL,
 842                                           compute_margin,
 843                                           &number);
 844   gtk_css_style_property_register        ("margin-right",
 845                                           GTK_TYPE_CSS_NUMBER,
 846                                           GTK_TYPE_CSS_NUMBER,
 847                                           G_TYPE_INT,
 848                                           0,
 849                                           parse_margin,
 850                                           NULL,
 851                                           compute_margin,
 852                                           &number);
 853   gtk_css_style_property_register        ("padding-top",
 854                                           GTK_TYPE_CSS_NUMBER,
 855                                           GTK_TYPE_CSS_NUMBER,
 856                                           G_TYPE_INT,
 857                                           0,
 858                                           parse_padding,
 859                                           NULL,
 860                                           compute_padding,
 861                                           &number);
 862   gtk_css_style_property_register        ("padding-left",
 863                                           GTK_TYPE_CSS_NUMBER,
 864                                           GTK_TYPE_CSS_NUMBER,
 865                                           G_TYPE_INT,
 866                                           0,
 867                                           parse_padding,
 868                                           NULL,
 869                                           compute_padding,
 870                                           &number);
 871   gtk_css_style_property_register        ("padding-bottom",
 872                                           GTK_TYPE_CSS_NUMBER,
 873                                           GTK_TYPE_CSS_NUMBER,
 874                                           G_TYPE_INT,
 875                                           0,
 876                                           parse_padding,
 877                                           NULL,
 878                                           compute_padding,
 879                                           &number);
 880   gtk_css_style_property_register        ("padding-right",
 881                                           GTK_TYPE_CSS_NUMBER,
 882                                           GTK_TYPE_CSS_NUMBER,
 883                                           G_TYPE_INT,
 884                                           0,
 885                                           parse_padding,
 886                                           NULL,
 887                                           compute_padding,
 888                                           &number);
 889   /* IMPORTANT: compute_border_width() requires that the border-width
 890    * properties be immeditaly followed by the border-style properties
 891    */
 892   gtk_css_style_property_register        ("border-top-style",
 893                                           GTK_TYPE_BORDER_STYLE,
 894                                           GTK_TYPE_BORDER_STYLE,
 895                                           GTK_TYPE_BORDER_STYLE,
 896                                           0,
 897                                           NULL,
 898                                           NULL,
 899                                           NULL,
 900                                           GTK_BORDER_STYLE_NONE);
 901   gtk_css_style_property_register        ("border-top-width",
 902                                           GTK_TYPE_CSS_NUMBER,
 903                                           G_TYPE_INT,
 904                                           G_TYPE_INT,
 905                                           0,
 906                                           parse_border_width,
 907                                           NULL,
 908                                           compute_border_width,
 909                                           &number);
 910   gtk_css_style_property_register        ("border-left-style",
 911                                           GTK_TYPE_BORDER_STYLE,
 912                                           GTK_TYPE_BORDER_STYLE,
 913                                           GTK_TYPE_BORDER_STYLE,
 914                                           0,
 915                                           NULL,
 916                                           NULL,
 917                                           NULL,
 918                                           GTK_BORDER_STYLE_NONE);
 919   gtk_css_style_property_register        ("border-left-width",
 920                                           GTK_TYPE_CSS_NUMBER,
 921                                           G_TYPE_INT,
 922                                           G_TYPE_INT,
 923                                           0,
 924                                           parse_border_width,
 925                                           NULL,
 926                                           compute_border_width,
 927                                           &number);
 928   gtk_css_style_property_register        ("border-bottom-style",
 929                                           GTK_TYPE_BORDER_STYLE,
 930                                           GTK_TYPE_BORDER_STYLE,
 931                                           GTK_TYPE_BORDER_STYLE,
 932                                           0,
 933                                           NULL,
 934                                           NULL,
 935                                           NULL,
 936                                           GTK_BORDER_STYLE_NONE);
 937   gtk_css_style_property_register        ("border-bottom-width",
 938                                           GTK_TYPE_CSS_NUMBER,
 939                                           G_TYPE_INT,
 940                                           G_TYPE_INT,
 941                                           0,
 942                                           parse_border_width,
 943                                           NULL,
 944                                           compute_border_width,
 945                                           &number);
 946   gtk_css_style_property_register        ("border-right-style",
 947                                           GTK_TYPE_BORDER_STYLE,
 948                                           GTK_TYPE_BORDER_STYLE,
 949                                           GTK_TYPE_BORDER_STYLE,
 950                                           0,
 951                                           NULL,
 952                                           NULL,
 953                                           NULL,
 954                                           GTK_BORDER_STYLE_NONE);
 955   gtk_css_style_property_register        ("border-right-width",
 956                                           GTK_TYPE_CSS_NUMBER,
 957                                           G_TYPE_INT,
 958                                           G_TYPE_INT,
 959                                           0,
 960                                           parse_border_width,
 961                                           NULL,
 962                                           compute_border_width,
 963                                           &number);
 964
 965   gtk_css_style_property_register        ("border-top-left-radius",
 966                                           GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
 967                                           GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
 968                                           GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
 969                                           0,
 970                                           border_corner_radius_value_parse,
 971                                           border_corner_radius_value_print,
 972                                           NULL,
 973                                           &no_corner_radius);
 974   gtk_css_style_property_register        ("border-top-right-radius",
 975                                           GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
 976                                           GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
 977                                           GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
 978                                           0,
 979                                           border_corner_radius_value_parse,
 980                                           border_corner_radius_value_print,
 981                                           NULL,
 982                                           &no_corner_radius);
 983   gtk_css_style_property_register        ("border-bottom-right-radius",
 984                                           GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
 985                                           GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
 986                                           GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
 987                                           0,
 988                                           border_corner_radius_value_parse,
 989                                           border_corner_radius_value_print,
 990                                           NULL,
 991                                           &no_corner_radius);
 992   gtk_css_style_property_register        ("border-bottom-left-radius",
 993                                           GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
 994                                           GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
 995                                           GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
 996                                           0,
 997                                           border_corner_radius_value_parse,
 998                                           border_corner_radius_value_print,
 999                                           NULL,
1000                                           &no_corner_radius);
1001
1002   gtk_css_style_property_register        ("outline-style",
1003                                           GTK_TYPE_BORDER_STYLE,
1004                                           GTK_TYPE_BORDER_STYLE,
1005                                           GTK_TYPE_BORDER_STYLE,
1006                                           0,
1007                                           NULL,
1008                                           NULL,
1009                                           NULL,
1010                                           GTK_BORDER_STYLE_NONE);
1011   gtk_css_style_property_register        ("outline-width",
1012                                           GTK_TYPE_CSS_NUMBER,
1013                                           G_TYPE_INT,
1014                                           G_TYPE_INT,
1015                                           0,
1016                                           parse_border_width,
1017                                           NULL,
1018                                           compute_border_width,
1019                                           &number);
1020   gtk_css_style_property_register        ("outline-offset",
1021                                           G_TYPE_INT,
1022                                           G_TYPE_INT,
1023                                           G_TYPE_INT,
1024                                           0,
1025                                           NULL,
1026                                           NULL,
1027                                           NULL,
1028                                           0);
1029
1030   gtk_css_style_property_register        ("background-clip",
1031                                           GTK_TYPE_CSS_AREA,
1032                                           GTK_TYPE_CSS_AREA,
1033                                           GTK_TYPE_CSS_AREA,
1034                                           0,
1035                                           NULL,
1036                                           NULL,
1037                                           NULL,
1038                                           GTK_CSS_AREA_BORDER_BOX);
1039   gtk_css_style_property_register        ("background-origin",
1040                                           GTK_TYPE_CSS_AREA,
1041                                           GTK_TYPE_CSS_AREA,
1042                                           GTK_TYPE_CSS_AREA,
1043                                           0,
1044                                           NULL,
1045                                           NULL,
1046                                           NULL,
1047                                           GTK_CSS_AREA_PADDING_BOX);
1048   gtk_css_style_property_register        ("background-size",
1049                                           GTK_TYPE_CSS_BACKGROUND_SIZE,
1050                                           GTK_TYPE_CSS_BACKGROUND_SIZE,
1051                                           G_TYPE_NONE,
1052                                           0,
1053                                           background_size_parse,
1054                                           background_size_print,
1055                                           background_size_compute,
1056                                           &default_background_size);
1057
1058   gtk_css_style_property_register        ("border-top-color",
1059                                           GTK_TYPE_SYMBOLIC_COLOR,
1060                                           GDK_TYPE_RGBA,
1061                                           GDK_TYPE_RGBA,
1062                                           0,
1063                                           NULL,
1064                                           NULL,
1065                                           color_compute,
1066                                           _gtk_symbolic_color_get_current_color ());
1067   gtk_css_style_property_register        ("border-right-color",
1068                                           GTK_TYPE_SYMBOLIC_COLOR,
1069                                           GDK_TYPE_RGBA,
1070                                           GDK_TYPE_RGBA,
1071                                           0,
1072                                           NULL,
1073                                           NULL,
1074                                           color_compute,
1075                                           _gtk_symbolic_color_get_current_color ());
1076   gtk_css_style_property_register        ("border-bottom-color",
1077                                           GTK_TYPE_SYMBOLIC_COLOR,
1078                                           GDK_TYPE_RGBA,
1079                                           GDK_TYPE_RGBA,
1080                                           0,
1081                                           NULL,
1082                                           NULL,
1083                                           color_compute,
1084                                           _gtk_symbolic_color_get_current_color ());
1085   gtk_css_style_property_register        ("border-left-color",
1086                                           GTK_TYPE_SYMBOLIC_COLOR,
1087                                           GDK_TYPE_RGBA,
1088                                           GDK_TYPE_RGBA,
1089                                           0,
1090                                           NULL,
1091                                           NULL,
1092                                           color_compute,
1093                                           _gtk_symbolic_color_get_current_color ());
1094   gtk_css_style_property_register        ("outline-color",
1095                                           GTK_TYPE_SYMBOLIC_COLOR,
1096                                           GDK_TYPE_RGBA,
1097                                           GDK_TYPE_RGBA,
1098                                           0,
1099                                           NULL,
1100                                           NULL,
1101                                           color_compute,
1102                                           _gtk_symbolic_color_get_current_color ());
1103
1104   gtk_css_style_property_register        ("background-repeat",
1105                                           GTK_TYPE_CSS_BACKGROUND_REPEAT,
1106                                           GTK_TYPE_CSS_BACKGROUND_REPEAT,
1107                                           GTK_TYPE_CSS_BACKGROUND_REPEAT,
1108                                           0,
1109                                           background_repeat_value_parse,
1110                                           background_repeat_value_print,
1111                                           NULL,
1112                                           GTK_CSS_BACKGROUND_REPEAT | (GTK_CSS_BACKGROUND_REPEAT << GTK_CSS_BACKGROUND_REPEAT_SHIFT));
1113   gtk_css_style_property_register        ("background-image",
1114                                           GTK_TYPE_CSS_IMAGE,
1115                                           GTK_TYPE_CSS_IMAGE,
1116                                           CAIRO_GOBJECT_TYPE_PATTERN,
1117                                           0,
1118                                           css_image_value_parse,
1119                                           css_image_value_print,
1120                                           css_image_value_compute,
1121                                           NULL);
1122
1123   gtk_css_style_property_register        ("border-image-source",
1124                                           GTK_TYPE_CSS_IMAGE,
1125                                           GTK_TYPE_CSS_IMAGE,
1126                                           CAIRO_GOBJECT_TYPE_PATTERN,
1127                                           0,
1128                                           css_image_value_parse,
1129                                           css_image_value_print,
1130                                           css_image_value_compute,
1131                                           NULL);
1132   gtk_css_style_property_register        ("border-image-repeat",
1133                                           GTK_TYPE_CSS_BORDER_IMAGE_REPEAT,
1134                                           GTK_TYPE_CSS_BORDER_IMAGE_REPEAT,
1135                                           GTK_TYPE_CSS_BORDER_IMAGE_REPEAT,
1136                                           0,
1137                                           NULL,
1138                                           NULL,
1139                                           NULL,
1140                                           &border_image_repeat);
1141
1142   /* XXX: The initial value is wrong, it should be 100% */
1143   gtk_css_style_property_register        ("border-image-slice",
1144                                           GTK_TYPE_BORDER,
1145                                           GTK_TYPE_BORDER,
1146                                           GTK_TYPE_BORDER,
1147                                           0,
1148                                           NULL,
1149                                           NULL,
1150                                           NULL,
1151                                           &border_of_ones);
1152   gtk_css_style_property_register        ("border-image-width",
1153                                           GTK_TYPE_BORDER,
1154                                           GTK_TYPE_BORDER,
1155                                           GTK_TYPE_BORDER,
1156                                           0,
1157                                           NULL,
1158                                           NULL,
1159                                           NULL,
1160                                           NULL);
1161   gtk_css_style_property_register        ("engine",
1162                                           GTK_TYPE_THEMING_ENGINE,
1163                                           GTK_TYPE_THEMING_ENGINE,
1164                                           GTK_TYPE_THEMING_ENGINE,
1165                                           0,
1166                                           NULL,
1167                                           NULL,
1168                                           NULL,
1169                                           gtk_theming_engine_load (NULL));
1170   gtk_css_style_property_register        ("transition",
1171                                           GTK_TYPE_ANIMATION_DESCRIPTION,
1172                                           GTK_TYPE_ANIMATION_DESCRIPTION,
1173                                           GTK_TYPE_ANIMATION_DESCRIPTION,
1174                                           0,
1175                                           NULL,
1176                                           NULL,
1177                                           NULL,
1178                                           NULL);
1179
1180   /* Private property holding the binding sets */
1181   gtk_css_style_property_register        ("gtk-key-bindings",
1182                                           G_TYPE_PTR_ARRAY,
1183                                           G_TYPE_PTR_ARRAY,
1184                                           G_TYPE_PTR_ARRAY,
1185                                           0,
1186                                           bindings_value_parse,
1187                                           bindings_value_print,
1188                                           NULL,
1189                                           NULL);
1190 }
1191