Pileus Git - ~andy/gtk/blob - gtk/gtkstyleproperty.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, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "config.h"
  21
  22 #include "gtkstylepropertyprivate.h"
  23
  24 #include <errno.h>
  25 #include <math.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28
  29 #include <gdk-pixbuf/gdk-pixbuf.h>
  30 #include <cairo-gobject.h>
  31
  32 #include "gtkcssprovider.h"
  33 #include "gtkcssparserprivate.h"
  34 #include "gtkcssshorthandpropertyprivate.h"
  35 #include "gtkcssstylepropertyprivate.h"
  36 #include "gtkcsstypesprivate.h"
  37 #include "gtkintl.h"
  38 #include "gtkprivatetypebuiltins.h"
  39 #include "gtkstylepropertiesprivate.h"
  40
  41 /* the actual parsers we have */
  42 #include "gtkanimationdescription.h"
  43 #include "gtkbindings.h"
  44 #include "gtkgradient.h"
  45 #include "gtkshadowprivate.h"
  46 #include "gtkthemingengine.h"
  47 #include "gtktypebuiltins.h"
  48 #include "gtkwin32themeprivate.h"
  49
  50 /* this is in case round() is not provided by the compiler,
  51  * such as in the case of C89 compilers, like MSVC
  52  */
  53 #include "fallback-c89.c"
  54
  55 enum {
  56   PROP_0,
  57   PROP_NAME,
  58   PROP_VALUE_TYPE
  59 };
  60
  61 static GHashTable *parse_funcs = NULL;
  62 static GHashTable *print_funcs = NULL;
  63
  64 G_DEFINE_ABSTRACT_TYPE (GtkStyleProperty, _gtk_style_property, G_TYPE_OBJECT)
  65
  66 static void
  67 gtk_style_property_finalize (GObject *object)
  68 {
  69   GtkStyleProperty *property = GTK_STYLE_PROPERTY (object);
  70
  71   g_warning ("finalizing %s `%s', how could this happen?", G_OBJECT_TYPE_NAME (object), property->name);
  72
  73   G_OBJECT_CLASS (_gtk_style_property_parent_class)->finalize (object);
  74 }
  75
  76 static void
  77 gtk_style_property_set_property (GObject      *object,
  78                                  guint         prop_id,
  79                                  const GValue *value,
  80                                  GParamSpec   *pspec)
  81 {
  82   GtkStyleProperty *property = GTK_STYLE_PROPERTY (object);
  83   GtkStylePropertyClass *klass = GTK_STYLE_PROPERTY_GET_CLASS (property);
  84
  85   switch (prop_id)
  86     {
  87     case PROP_NAME:
  88       property->name = g_value_dup_string (value);
  89       g_assert (property->name);
  90       g_assert (g_hash_table_lookup (klass->properties, property->name) == NULL);
  91       g_hash_table_insert (klass->properties, property->name, property);
  92       break;
  93     case PROP_VALUE_TYPE:
  94       property->value_type = g_value_get_gtype (value);
  95       break;
  96     default:
  97       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
  98       break;
  99     }
 100 }
 101
 102 static void
 103 gtk_style_property_get_property (GObject    *object,
 104                                  guint       prop_id,
 105                                  GValue     *value,
 106                                  GParamSpec *pspec)
 107 {
 108   GtkStyleProperty *property = GTK_STYLE_PROPERTY (object);
 109
 110   switch (prop_id)
 111     {
 112     case PROP_NAME:
 113       g_value_set_string (value, property->name);
 114       break;
 115     case PROP_VALUE_TYPE:
 116       g_value_set_gtype (value, property->value_type);
 117       break;
 118     default:
 119       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 120       break;
 121     }
 122 }
 123
 124 static void
 125 _gtk_style_property_class_init (GtkStylePropertyClass *klass)
 126 {
 127   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 128
 129   object_class->finalize = gtk_style_property_finalize;
 130   object_class->set_property = gtk_style_property_set_property;
 131   object_class->get_property = gtk_style_property_get_property;
 132
 133   g_object_class_install_property (object_class,
 134                                    PROP_NAME,
 135                                    g_param_spec_string ("name",
 136                                                         P_("Property name"),
 137                                                         P_("The name of the property"),
 138                                                         NULL,
 139                                                         G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 140   g_object_class_install_property (object_class,
 141                                    PROP_VALUE_TYPE,
 142                                    g_param_spec_gtype ("value-type",
 143                                                        P_("Value type"),
 144                                                        P_("The value type returned by GtkStyleContext"),
 145                                                        G_TYPE_NONE,
 146                                                        G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 147
 148   klass->properties = g_hash_table_new (g_str_hash, g_str_equal);
 149 }
 150
 151 static void
 152 _gtk_style_property_init (GtkStyleProperty *property)
 153 {
 154   property->value_type = G_TYPE_NONE;
 155 }
 156
 157 static void
 158 register_conversion_function (GType             type,
 159                               GtkStyleParseFunc parse,
 160                               GtkStylePrintFunc print)
 161 {
 162   if (parse)
 163     g_hash_table_insert (parse_funcs, GSIZE_TO_POINTER (type), parse);
 164   if (print)
 165     g_hash_table_insert (print_funcs, GSIZE_TO_POINTER (type), print);
 166 }
 167
 168 static void
 169 string_append_double (GString *string,
 170                       double   d)
 171 {
 172   char buf[G_ASCII_DTOSTR_BUF_SIZE];
 173
 174   g_ascii_dtostr (buf, sizeof (buf), d);
 175   g_string_append (string, buf);
 176 }
 177
 178 static void
 179 string_append_string (GString    *str,
 180                       const char *string)
 181 {
 182   gsize len;
 183
 184   g_string_append_c (str, '"');
 185
 186   do {
 187     len = strcspn (string, "\"\n\r\f");
 188     g_string_append (str, string);
 189     string += len;
 190     switch (*string)
 191       {
 192       case '\0':
 193         break;
 194       case '\n':
 195         g_string_append (str, "\\A ");
 196         break;
 197       case '\r':
 198         g_string_append (str, "\\D ");
 199         break;
 200       case '\f':
 201         g_string_append (str, "\\C ");
 202         break;
 203       case '\"':
 204         g_string_append (str, "\\\"");
 205         break;
 206       default:
 207         g_assert_not_reached ();
 208         break;
 209       }
 210   } while (*string);
 211
 212   g_string_append_c (str, '"');
 213 }
 214
 215 /*** IMPLEMENTATIONS ***/
 216
 217 static gboolean
 218 enum_parse (GtkCssParser *parser,
 219             GType         type,
 220             int          *res)
 221 {
 222   char *str;
 223
 224   if (_gtk_css_parser_try_enum (parser, type, res))
 225     return TRUE;
 226
 227   str = _gtk_css_parser_try_ident (parser, TRUE);
 228   if (str == NULL)
 229     {
 230       _gtk_css_parser_error (parser, "Expected an identifier");
 231       return FALSE;
 232     }
 233
 234   _gtk_css_parser_error (parser,
 235                          "Unknown value '%s' for enum type '%s'",
 236                          str, g_type_name (type));
 237   g_free (str);
 238
 239   return FALSE;
 240 }
 241
 242 static void
 243 enum_print (int         value,
 244             GType       type,
 245             GString    *string)
 246 {
 247   GEnumClass *enum_class;
 248   GEnumValue *enum_value;
 249
 250   enum_class = g_type_class_ref (type);
 251   enum_value = g_enum_get_value (enum_class, value);
 252
 253   g_string_append (string, enum_value->value_nick);
 254
 255   g_type_class_unref (enum_class);
 256 }
 257
 258 static gboolean
 259 rgba_value_parse (GtkCssParser *parser,
 260                   GFile        *base,
 261                   GValue       *value)
 262 {
 263   GtkSymbolicColor *symbolic;
 264   GdkRGBA rgba;
 265
 266   symbolic = _gtk_css_parser_read_symbolic_color (parser);
 267   if (symbolic == NULL)
 268     return FALSE;
 269
 270   if (gtk_symbolic_color_resolve (symbolic, NULL, &rgba))
 271     {
 272       g_value_set_boxed (value, &rgba);
 273       gtk_symbolic_color_unref (symbolic);
 274     }
 275   else
 276     {
 277       g_value_unset (value);
 278       g_value_init (value, GTK_TYPE_SYMBOLIC_COLOR);
 279       g_value_take_boxed (value, symbolic);
 280     }
 281
 282   return TRUE;
 283 }
 284
 285 static void
 286 rgba_value_print (const GValue *value,
 287                   GString      *string)
 288 {
 289   const GdkRGBA *rgba = g_value_get_boxed (value);
 290
 291   if (rgba == NULL)
 292     g_string_append (string, "none");
 293   else
 294     {
 295       char *s = gdk_rgba_to_string (rgba);
 296       g_string_append (string, s);
 297       g_free (s);
 298     }
 299 }
 300
 301 static gboolean
 302 color_value_parse (GtkCssParser *parser,
 303                    GFile        *base,
 304                    GValue       *value)
 305 {
 306   GtkSymbolicColor *symbolic;
 307   GdkRGBA rgba;
 308
 309   symbolic = _gtk_css_parser_read_symbolic_color (parser);
 310   if (symbolic == NULL)
 311     return FALSE;
 312
 313   if (gtk_symbolic_color_resolve (symbolic, NULL, &rgba))
 314     {
 315       GdkColor color;
 316
 317       color.red = rgba.red * 65535. + 0.5;
 318       color.green = rgba.green * 65535. + 0.5;
 319       color.blue = rgba.blue * 65535. + 0.5;
 320
 321       g_value_set_boxed (value, &color);
 322     }
 323   else
 324     {
 325       g_value_unset (value);
 326       g_value_init (value, GTK_TYPE_SYMBOLIC_COLOR);
 327       g_value_take_boxed (value, symbolic);
 328     }
 329
 330   return TRUE;
 331 }
 332
 333 static void
 334 color_value_print (const GValue *value,
 335                    GString      *string)
 336 {
 337   const GdkColor *color = g_value_get_boxed (value);
 338
 339   if (color == NULL)
 340     g_string_append (string, "none");
 341   else
 342     {
 343       char *s = gdk_color_to_string (color);
 344       g_string_append (string, s);
 345       g_free (s);
 346     }
 347 }
 348
 349 static gboolean
 350 symbolic_color_value_parse (GtkCssParser *parser,
 351                             GFile        *base,
 352                             GValue       *value)
 353 {
 354   GtkSymbolicColor *symbolic;
 355
 356   symbolic = _gtk_css_parser_read_symbolic_color (parser);
 357   if (symbolic == NULL)
 358     return FALSE;
 359
 360   g_value_take_boxed (value, symbolic);
 361   return TRUE;
 362 }
 363
 364 static void
 365 symbolic_color_value_print (const GValue *value,
 366                             GString      *string)
 367 {
 368   GtkSymbolicColor *symbolic = g_value_get_boxed (value);
 369
 370   if (symbolic == NULL)
 371     g_string_append (string, "none");
 372   else
 373     {
 374       char *s = gtk_symbolic_color_to_string (symbolic);
 375       g_string_append (string, s);
 376       g_free (s);
 377     }
 378 }
 379
 380 static gboolean
 381 font_family_parse (GtkCssParser *parser,
 382                    GFile        *base,
 383                    GValue       *value)
 384 {
 385   GPtrArray *names;
 386   char *name;
 387
 388   /* We don't special case generic families. Pango should do
 389    * that for us */
 390
 391   names = g_ptr_array_new ();
 392
 393   do {
 394     name = _gtk_css_parser_try_ident (parser, TRUE);
 395     if (name)
 396       {
 397         GString *string = g_string_new (name);
 398         g_free (name);
 399         while ((name = _gtk_css_parser_try_ident (parser, TRUE)))
 400           {
 401             g_string_append_c (string, ' ');
 402             g_string_append (string, name);
 403             g_free (name);
 404           }
 405         name = g_string_free (string, FALSE);
 406       }
 407     else
 408       {
 409         name = _gtk_css_parser_read_string (parser);
 410         if (name == NULL)
 411           {
 412             g_ptr_array_free (names, TRUE);
 413             return FALSE;
 414           }
 415       }
 416
 417     g_ptr_array_add (names, name);
 418   } while (_gtk_css_parser_try (parser, ",", TRUE));
 419
 420   /* NULL-terminate array */
 421   g_ptr_array_add (names, NULL);
 422   g_value_set_boxed (value, g_ptr_array_free (names, FALSE));
 423   return TRUE;
 424 }
 425
 426 static void
 427 font_family_value_print (const GValue *value,
 428                          GString      *string)
 429 {
 430   const char **names = g_value_get_boxed (value);
 431
 432   if (names == NULL || *names == NULL)
 433     {
 434       g_string_append (string, "none");
 435       return;
 436     }
 437
 438   string_append_string (string, *names);
 439   names++;
 440   while (*names)
 441     {
 442       g_string_append (string, ", ");
 443       string_append_string (string, *names);
 444       names++;
 445     }
 446 }
 447
 448 static gboolean
 449 font_description_value_parse (GtkCssParser *parser,
 450                               GFile        *base,
 451                               GValue       *value)
 452 {
 453   PangoFontDescription *font_desc;
 454   guint mask;
 455   char *str;
 456
 457   str = _gtk_css_parser_read_value (parser);
 458   if (str == NULL)
 459     return FALSE;
 460
 461   font_desc = pango_font_description_from_string (str);
 462   mask = pango_font_description_get_set_fields (font_desc);
 463   /* These values are not really correct,
 464    * but the fields must be set, so we set them to something */
 465   if ((mask & PANGO_FONT_MASK_FAMILY) == 0)
 466     pango_font_description_set_family_static (font_desc, "Sans");
 467   if ((mask & PANGO_FONT_MASK_SIZE) == 0)
 468     pango_font_description_set_size (font_desc, 10 * PANGO_SCALE);
 469   g_free (str);
 470   g_value_take_boxed (value, font_desc);
 471   return TRUE;
 472 }
 473
 474 static void
 475 font_description_value_print (const GValue *value,
 476                               GString      *string)
 477 {
 478   const PangoFontDescription *desc = g_value_get_boxed (value);
 479
 480   if (desc == NULL)
 481     g_string_append (string, "none");
 482   else
 483     {
 484       char *s = pango_font_description_to_string (desc);
 485       g_string_append (string, s);
 486       g_free (s);
 487     }
 488 }
 489
 490 static gboolean
 491 boolean_value_parse (GtkCssParser *parser,
 492                      GFile        *base,
 493                      GValue       *value)
 494 {
 495   if (_gtk_css_parser_try (parser, "true", TRUE) ||
 496       _gtk_css_parser_try (parser, "1", TRUE))
 497     {
 498       g_value_set_boolean (value, TRUE);
 499       return TRUE;
 500     }
 501   else if (_gtk_css_parser_try (parser, "false", TRUE) ||
 502            _gtk_css_parser_try (parser, "0", TRUE))
 503     {
 504       g_value_set_boolean (value, FALSE);
 505       return TRUE;
 506     }
 507   else
 508     {
 509       _gtk_css_parser_error (parser, "Expected a boolean value");
 510       return FALSE;
 511     }
 512 }
 513
 514 static void
 515 boolean_value_print (const GValue *value,
 516                      GString      *string)
 517 {
 518   if (g_value_get_boolean (value))
 519     g_string_append (string, "true");
 520   else
 521     g_string_append (string, "false");
 522 }
 523
 524 static gboolean
 525 int_value_parse (GtkCssParser *parser,
 526                  GFile        *base,
 527                  GValue       *value)
 528 {
 529   gint i;
 530
 531   if (_gtk_css_parser_begins_with (parser, '-'))
 532     {
 533       int res = _gtk_win32_theme_int_parse (parser, base, &i);
 534       if (res >= 0)
 535         {
 536           g_value_set_int (value, i);
 537           return res > 0;
 538         }
 539       /* < 0 => continue */
 540     }
 541
 542   if (!_gtk_css_parser_try_int (parser, &i))
 543     {
 544       _gtk_css_parser_error (parser, "Expected a valid integer value");
 545       return FALSE;
 546     }
 547
 548   g_value_set_int (value, i);
 549   return TRUE;
 550 }
 551
 552 static void
 553 int_value_print (const GValue *value,
 554                  GString      *string)
 555 {
 556   g_string_append_printf (string, "%d", g_value_get_int (value));
 557 }
 558
 559 static gboolean
 560 uint_value_parse (GtkCssParser *parser,
 561                   GFile        *base,
 562                   GValue       *value)
 563 {
 564   guint u;
 565
 566   if (!_gtk_css_parser_try_uint (parser, &u))
 567     {
 568       _gtk_css_parser_error (parser, "Expected a valid unsigned value");
 569       return FALSE;
 570     }
 571
 572   g_value_set_uint (value, u);
 573   return TRUE;
 574 }
 575
 576 static void
 577 uint_value_print (const GValue *value,
 578                   GString      *string)
 579 {
 580   g_string_append_printf (string, "%u", g_value_get_uint (value));
 581 }
 582
 583 static gboolean
 584 double_value_parse (GtkCssParser *parser,
 585                     GFile        *base,
 586                     GValue       *value)
 587 {
 588   gdouble d;
 589
 590   if (!_gtk_css_parser_try_double (parser, &d))
 591     {
 592       _gtk_css_parser_error (parser, "Expected a number");
 593       return FALSE;
 594     }
 595
 596   g_value_set_double (value, d);
 597   return TRUE;
 598 }
 599
 600 static void
 601 double_value_print (const GValue *value,
 602                     GString      *string)
 603 {
 604   string_append_double (string, g_value_get_double (value));
 605 }
 606
 607 static gboolean
 608 float_value_parse (GtkCssParser *parser,
 609                    GFile        *base,
 610                    GValue       *value)
 611 {
 612   gdouble d;
 613
 614   if (!_gtk_css_parser_try_double (parser, &d))
 615     {
 616       _gtk_css_parser_error (parser, "Expected a number");
 617       return FALSE;
 618     }
 619
 620   g_value_set_float (value, d);
 621   return TRUE;
 622 }
 623
 624 static void
 625 float_value_print (const GValue *value,
 626                    GString      *string)
 627 {
 628   string_append_double (string, g_value_get_float (value));
 629 }
 630
 631 static gboolean
 632 string_value_parse (GtkCssParser *parser,
 633                     GFile        *base,
 634                     GValue       *value)
 635 {
 636   char *str = _gtk_css_parser_read_string (parser);
 637
 638   if (str == NULL)
 639     return FALSE;
 640
 641   g_value_take_string (value, str);
 642   return TRUE;
 643 }
 644
 645 static void
 646 string_value_print (const GValue *value,
 647                     GString      *str)
 648 {
 649   string_append_string (str, g_value_get_string (value));
 650 }
 651
 652 static gboolean
 653 theming_engine_value_parse (GtkCssParser *parser,
 654                             GFile        *base,
 655                             GValue       *value)
 656 {
 657   GtkThemingEngine *engine;
 658   char *str;
 659
 660   if (_gtk_css_parser_try (parser, "none", TRUE))
 661     {
 662       g_value_set_object (value, gtk_theming_engine_load (NULL));
 663       return TRUE;
 664     }
 665
 666   str = _gtk_css_parser_try_ident (parser, TRUE);
 667   if (str == NULL)
 668     {
 669       _gtk_css_parser_error (parser, "Expected a valid theme name");
 670       return FALSE;
 671     }
 672
 673   engine = gtk_theming_engine_load (str);
 674
 675   if (engine == NULL)
 676     {
 677       _gtk_css_parser_error (parser, "Themeing engine '%s' not found", str);
 678       g_free (str);
 679       return FALSE;
 680     }
 681
 682   g_value_set_object (value, engine);
 683   g_free (str);
 684   return TRUE;
 685 }
 686
 687 static void
 688 theming_engine_value_print (const GValue *value,
 689                             GString      *string)
 690 {
 691   GtkThemingEngine *engine;
 692   char *name;
 693
 694   engine = g_value_get_object (value);
 695   if (engine == NULL)
 696     g_string_append (string, "none");
 697   else
 698     {
 699       /* XXX: gtk_theming_engine_get_name()? */
 700       g_object_get (engine, "name", &name, NULL);
 701       g_string_append (string, name ? name : "none");
 702       g_free (name);
 703     }
 704 }
 705
 706 static gboolean
 707 animation_description_value_parse (GtkCssParser *parser,
 708                                    GFile        *base,
 709                                    GValue       *value)
 710 {
 711   GtkAnimationDescription *desc;
 712   char *str;
 713
 714   str = _gtk_css_parser_read_value (parser);
 715   if (str == NULL)
 716     return FALSE;
 717
 718   desc = _gtk_animation_description_from_string (str);
 719   g_free (str);
 720
 721   if (desc == NULL)
 722     {
 723       _gtk_css_parser_error (parser, "Invalid animation description");
 724       return FALSE;
 725     }
 726
 727   g_value_take_boxed (value, desc);
 728   return TRUE;
 729 }
 730
 731 static void
 732 animation_description_value_print (const GValue *value,
 733                                    GString      *string)
 734 {
 735   GtkAnimationDescription *desc = g_value_get_boxed (value);
 736
 737   if (desc == NULL)
 738     g_string_append (string, "none");
 739   else
 740     _gtk_animation_description_print (desc, string);
 741 }
 742
 743 static gboolean
 744 border_value_parse (GtkCssParser *parser,
 745                     GFile        *base,
 746                     GValue       *value)
 747 {
 748   GtkBorder border = { 0, };
 749   guint i, numbers[4];
 750
 751   for (i = 0; i < G_N_ELEMENTS (numbers); i++)
 752     {
 753       if (_gtk_css_parser_begins_with (parser, '-'))
 754         {
 755           /* These are strictly speaking signed, but we want to be able to use them
 756              for unsigned types too, as the actual ranges of values make this safe */
 757           int res = _gtk_win32_theme_int_parse (parser, base, (int *)&numbers[i]);
 758
 759           if (res == 0) /* Parse error, report */
 760             return FALSE;
 761
 762           if (res < 0) /* Nothing known to expand */
 763             break;
 764         }
 765       else
 766         {
 767           if (!_gtk_css_parser_try_uint (parser, &numbers[i]))
 768             break;
 769
 770           /* XXX: shouldn't allow spaces here? */
 771           _gtk_css_parser_try (parser, "px", TRUE);
 772         }
 773     }
 774
 775   if (i == 0)
 776     {
 777       _gtk_css_parser_error (parser, "Expected valid border");
 778       return FALSE;
 779     }
 780
 781   border.top = numbers[0];
 782   if (i > 1)
 783     border.right = numbers[1];
 784   else
 785     border.right = border.top;
 786   if (i > 2)
 787     border.bottom = numbers[2];
 788   else
 789     border.bottom = border.top;
 790   if (i > 3)
 791     border.left = numbers[3];
 792   else
 793     border.left = border.right;
 794
 795   g_value_set_boxed (value, &border);
 796   return TRUE;
 797 }
 798
 799 static void
 800 border_value_print (const GValue *value, GString *string)
 801 {
 802   const GtkBorder *border = g_value_get_boxed (value);
 803
 804   if (border == NULL)
 805     g_string_append (string, "none");
 806   else if (border->left != border->right)
 807     g_string_append_printf (string, "%d %d %d %d", border->top, border->right, border->bottom, border->left);
 808   else if (border->top != border->bottom)
 809     g_string_append_printf (string, "%d %d %d", border->top, border->right, border->bottom);
 810   else if (border->top != border->left)
 811     g_string_append_printf (string, "%d %d", border->top, border->right);
 812   else
 813     g_string_append_printf (string, "%d", border->top);
 814 }
 815
 816 static gboolean
 817 gradient_value_parse (GtkCssParser *parser,
 818                       GFile        *base,
 819                       GValue       *value)
 820 {
 821   GtkGradient *gradient;
 822   cairo_pattern_type_t type;
 823   gdouble coords[6];
 824   guint i;
 825
 826   if (!_gtk_css_parser_try (parser, "-gtk-gradient", TRUE))
 827     {
 828       _gtk_css_parser_error (parser,
 829                              "Expected '-gtk-gradient'");
 830       return FALSE;
 831     }
 832
 833   if (!_gtk_css_parser_try (parser, "(", TRUE))
 834     {
 835       _gtk_css_parser_error (parser,
 836                              "Expected '(' after '-gtk-gradient'");
 837       return FALSE;
 838     }
 839
 840   /* Parse gradient type */
 841   if (_gtk_css_parser_try (parser, "linear", TRUE))
 842     type = CAIRO_PATTERN_TYPE_LINEAR;
 843   else if (_gtk_css_parser_try (parser, "radial", TRUE))
 844     type = CAIRO_PATTERN_TYPE_RADIAL;
 845   else
 846     {
 847       _gtk_css_parser_error (parser,
 848                              "Gradient type must be 'radial' or 'linear'");
 849       return FALSE;
 850     }
 851
 852   /* Parse start/stop position parameters */
 853   for (i = 0; i < 2; i++)
 854     {
 855       if (! _gtk_css_parser_try (parser, ",", TRUE))
 856         {
 857           _gtk_css_parser_error (parser,
 858                                  "Expected ','");
 859           return FALSE;
 860         }
 861
 862       if (_gtk_css_parser_try (parser, "left", TRUE))
 863         coords[i * 3] = 0;
 864       else if (_gtk_css_parser_try (parser, "right", TRUE))
 865         coords[i * 3] = 1;
 866       else if (_gtk_css_parser_try (parser, "center", TRUE))
 867         coords[i * 3] = 0.5;
 868       else if (!_gtk_css_parser_try_double (parser, &coords[i * 3]))
 869         {
 870           _gtk_css_parser_error (parser,
 871                                  "Expected a valid X coordinate");
 872           return FALSE;
 873         }
 874
 875       if (_gtk_css_parser_try (parser, "top", TRUE))
 876         coords[i * 3 + 1] = 0;
 877       else if (_gtk_css_parser_try (parser, "bottom", TRUE))
 878         coords[i * 3 + 1] = 1;
 879       else if (_gtk_css_parser_try (parser, "center", TRUE))
 880         coords[i * 3 + 1] = 0.5;
 881       else if (!_gtk_css_parser_try_double (parser, &coords[i * 3 + 1]))
 882         {
 883           _gtk_css_parser_error (parser,
 884                                  "Expected a valid Y coordinate");
 885           return FALSE;
 886         }
 887
 888       if (type == CAIRO_PATTERN_TYPE_RADIAL)
 889         {
 890           /* Parse radius */
 891           if (! _gtk_css_parser_try (parser, ",", TRUE))
 892             {
 893               _gtk_css_parser_error (parser,
 894                                      "Expected ','");
 895               return FALSE;
 896             }
 897
 898           if (! _gtk_css_parser_try_double (parser, &coords[(i * 3) + 2]))
 899             {
 900               _gtk_css_parser_error (parser,
 901                                      "Expected a numer for the radius");
 902               return FALSE;
 903             }
 904         }
 905     }
 906
 907   if (type == CAIRO_PATTERN_TYPE_LINEAR)
 908     gradient = gtk_gradient_new_linear (coords[0], coords[1], coords[3], coords[4]);
 909   else
 910     gradient = gtk_gradient_new_radial (coords[0], coords[1], coords[2],
 911                                         coords[3], coords[4], coords[5]);
 912
 913   while (_gtk_css_parser_try (parser, ",", TRUE))
 914     {
 915       GtkSymbolicColor *color;
 916       gdouble position;
 917
 918       if (_gtk_css_parser_try (parser, "from", TRUE))
 919         {
 920           position = 0;
 921
 922           if (!_gtk_css_parser_try (parser, "(", TRUE))
 923             {
 924               gtk_gradient_unref (gradient);
 925               _gtk_css_parser_error (parser,
 926                                      "Expected '('");
 927               return FALSE;
 928             }
 929
 930         }
 931       else if (_gtk_css_parser_try (parser, "to", TRUE))
 932         {
 933           position = 1;
 934
 935           if (!_gtk_css_parser_try (parser, "(", TRUE))
 936             {
 937               gtk_gradient_unref (gradient);
 938               _gtk_css_parser_error (parser,
 939                                      "Expected '('");
 940               return FALSE;
 941             }
 942
 943         }
 944       else if (_gtk_css_parser_try (parser, "color-stop", TRUE))
 945         {
 946           if (!_gtk_css_parser_try (parser, "(", TRUE))
 947             {
 948               gtk_gradient_unref (gradient);
 949               _gtk_css_parser_error (parser,
 950                                      "Expected '('");
 951               return FALSE;
 952             }
 953
 954           if (!_gtk_css_parser_try_double (parser, &position))
 955             {
 956               gtk_gradient_unref (gradient);
 957               _gtk_css_parser_error (parser,
 958                                      "Expected a valid number");
 959               return FALSE;
 960             }
 961
 962           if (!_gtk_css_parser_try (parser, ",", TRUE))
 963             {
 964               gtk_gradient_unref (gradient);
 965               _gtk_css_parser_error (parser,
 966                                      "Expected a comma");
 967               return FALSE;
 968             }
 969         }
 970       else
 971         {
 972           gtk_gradient_unref (gradient);
 973           _gtk_css_parser_error (parser,
 974                                  "Not a valid color-stop definition");
 975           return FALSE;
 976         }
 977
 978       color = _gtk_css_parser_read_symbolic_color (parser);
 979       if (color == NULL)
 980         {
 981           gtk_gradient_unref (gradient);
 982           return FALSE;
 983         }
 984
 985       gtk_gradient_add_color_stop (gradient, position, color);
 986       gtk_symbolic_color_unref (color);
 987
 988       if (!_gtk_css_parser_try (parser, ")", TRUE))
 989         {
 990           gtk_gradient_unref (gradient);
 991           _gtk_css_parser_error (parser,
 992                                  "Expected ')'");
 993           return FALSE;
 994         }
 995     }
 996
 997   if (!_gtk_css_parser_try (parser, ")", TRUE))
 998     {
 999       gtk_gradient_unref (gradient);
1000       _gtk_css_parser_error (parser,
1001                              "Expected ')'");
1002       return FALSE;
1003     }
1004
1005   g_value_take_boxed (value, gradient);
1006   return TRUE;
1007 }
1008
1009 static void
1010 gradient_value_print (const GValue *value,
1011                       GString      *string)
1012 {
1013   GtkGradient *gradient = g_value_get_boxed (value);
1014
1015   if (gradient == NULL)
1016     g_string_append (string, "none");
1017   else
1018     {
1019       char *s = gtk_gradient_to_string (gradient);
1020       g_string_append (string, s);
1021       g_free (s);
1022     }
1023 }
1024
1025 static GFile *
1026 gtk_css_parse_url (GtkCssParser *parser,
1027                    GFile        *base)
1028 {
1029   gchar *path;
1030   GFile *file;
1031
1032   if (_gtk_css_parser_try (parser, "url", FALSE))
1033     {
1034       if (!_gtk_css_parser_try (parser, "(", TRUE))
1035         {
1036           _gtk_css_parser_skip_whitespace (parser);
1037           if (_gtk_css_parser_try (parser, "(", TRUE))
1038             {
1039               GError *error;
1040
1041               error = g_error_new_literal (GTK_CSS_PROVIDER_ERROR,
1042                                            GTK_CSS_PROVIDER_ERROR_DEPRECATED,
1043                                            "Whitespace between 'url' and '(' is deprecated");
1044
1045               _gtk_css_parser_take_error (parser, error);
1046             }
1047           else
1048             {
1049               _gtk_css_parser_error (parser, "Expected '(' after 'url'");
1050               return NULL;
1051             }
1052         }
1053
1054       path = _gtk_css_parser_read_string (parser);
1055       if (path == NULL)
1056         return NULL;
1057
1058       if (!_gtk_css_parser_try (parser, ")", TRUE))
1059         {
1060           _gtk_css_parser_error (parser, "No closing ')' found for 'url'");
1061           g_free (path);
1062           return NULL;
1063         }
1064     }
1065   else
1066     {
1067       path = _gtk_css_parser_try_name (parser, TRUE);
1068       if (path == NULL)
1069         {
1070           _gtk_css_parser_error (parser, "Not a valid url");
1071           return NULL;
1072         }
1073     }
1074
1075   file = g_file_resolve_relative_path (base, path);
1076   g_free (path);
1077
1078   return file;
1079 }
1080
1081 static gboolean
1082 pattern_value_parse (GtkCssParser *parser,
1083                      GFile        *base,
1084                      GValue       *value)
1085 {
1086   if (_gtk_css_parser_try (parser, "none", TRUE))
1087     {
1088       /* nothing to do here */
1089     }
1090   else if (_gtk_css_parser_begins_with (parser, '-'))
1091     {
1092       int res;
1093       res = _gtk_win32_theme_part_parse (parser, base, value);
1094       if (res >= 0)
1095         return res > 0;
1096       /* < 0 => continue */
1097       g_value_unset (value);
1098       g_value_init (value, GTK_TYPE_GRADIENT);
1099       return gradient_value_parse (parser, base, value);
1100     }
1101   else
1102     {
1103       GError *error = NULL;
1104       gchar *path;
1105       GdkPixbuf *pixbuf;
1106       GFile *file;
1107       cairo_surface_t *surface;
1108       cairo_pattern_t *pattern;
1109       cairo_t *cr;
1110       cairo_matrix_t matrix;
1111
1112       file = gtk_css_parse_url (parser, base);
1113       if (file == NULL)
1114         return FALSE;
1115
1116       path = g_file_get_path (file);
1117       g_object_unref (file);
1118
1119       pixbuf = gdk_pixbuf_new_from_file (path, &error);
1120       g_free (path);
1121       if (pixbuf == NULL)
1122         {
1123           _gtk_css_parser_take_error (parser, error);
1124           return FALSE;
1125         }
1126
1127       surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
1128                                             gdk_pixbuf_get_width (pixbuf),
1129                                             gdk_pixbuf_get_height (pixbuf));
1130       cr = cairo_create (surface);
1131       gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
1132       cairo_paint (cr);
1133       pattern = cairo_pattern_create_for_surface (surface);
1134
1135       cairo_matrix_init_scale (&matrix,
1136                                gdk_pixbuf_get_width (pixbuf),
1137                                gdk_pixbuf_get_height (pixbuf));
1138       cairo_pattern_set_matrix (pattern, &matrix);
1139
1140       cairo_surface_destroy (surface);
1141       cairo_destroy (cr);
1142       g_object_unref (pixbuf);
1143
1144       g_value_take_boxed (value, pattern);
1145     }
1146
1147   return TRUE;
1148 }
1149
1150 static cairo_status_t
1151 surface_write (void                *closure,
1152                const unsigned char *data,
1153                unsigned int         length)
1154 {
1155   g_byte_array_append (closure, data, length);
1156
1157   return CAIRO_STATUS_SUCCESS;
1158 }
1159
1160 static void
1161 surface_print (cairo_surface_t *surface,
1162                GString *        string)
1163 {
1164 #if CAIRO_HAS_PNG_FUNCTIONS
1165   GByteArray *array;
1166   char *base64;
1167
1168   array = g_byte_array_new ();
1169   cairo_surface_write_to_png_stream (surface, surface_write, array);
1170   base64 = g_base64_encode (array->data, array->len);
1171   g_byte_array_free (array, TRUE);
1172
1173   g_string_append (string, "url(\"data:image/png;base64,");
1174   g_string_append (string, base64);
1175   g_string_append (string, "\")");
1176
1177   g_free (base64);
1178 #else
1179   g_string_append (string, "none /* you need cairo png functions enabled to make this work */");
1180 #endif
1181 }
1182
1183 static void
1184 pattern_value_print (const GValue *value,
1185                      GString      *string)
1186 {
1187   cairo_pattern_t *pattern;
1188   cairo_surface_t *surface;
1189
1190   pattern = g_value_get_boxed (value);
1191
1192   if (pattern == NULL)
1193     {
1194       g_string_append (string, "none");
1195       return;
1196     }
1197
1198   switch (cairo_pattern_get_type (pattern))
1199     {
1200     case CAIRO_PATTERN_TYPE_SURFACE:
1201       if (cairo_pattern_get_surface (pattern, &surface) != CAIRO_STATUS_SUCCESS)
1202         {
1203           g_assert_not_reached ();
1204         }
1205       surface_print (surface, string);
1206       break;
1207     case CAIRO_PATTERN_TYPE_SOLID:
1208     case CAIRO_PATTERN_TYPE_LINEAR:
1209     case CAIRO_PATTERN_TYPE_RADIAL:
1210     default:
1211       g_assert_not_reached ();
1212       break;
1213     }
1214 }
1215
1216 static gboolean
1217 shadow_value_parse (GtkCssParser *parser,
1218                     GFile *base,
1219                     GValue *value)
1220 {
1221   gboolean have_inset, have_color, have_lengths;
1222   gdouble hoffset, voffset, blur, spread;
1223   GtkSymbolicColor *color;
1224   GtkShadow *shadow;
1225   guint i;
1226
1227   shadow = _gtk_shadow_new ();
1228
1229   if (_gtk_css_parser_try (parser, "none", TRUE))
1230     return TRUE;
1231
1232   do
1233     {
1234       have_inset = have_lengths = have_color = FALSE;
1235
1236       for (i = 0; i < 3; i++)
1237         {
1238           if (!have_inset &&
1239               _gtk_css_parser_try (parser, "inset", TRUE))
1240             {
1241               have_inset = TRUE;
1242               continue;
1243             }
1244
1245           if (!have_lengths &&
1246               _gtk_css_parser_try_double (parser, &hoffset))
1247             {
1248               have_lengths = TRUE;
1249
1250               if (!_gtk_css_parser_try_double (parser, &voffset))
1251                 {
1252                   _gtk_css_parser_error (parser, "Horizontal and vertical offsets are required");
1253                   _gtk_shadow_unref (shadow);
1254                   return FALSE;
1255                 }
1256
1257               if (!_gtk_css_parser_try_double (parser, &blur))
1258                 blur = 0;
1259
1260               if (!_gtk_css_parser_try_double (parser, &spread))
1261                 spread = 0;
1262
1263               continue;
1264             }
1265
1266           if (!have_color)
1267             {
1268               have_color = TRUE;
1269
1270               /* XXX: the color is optional and UA-defined if it's missing,
1271                * but it doesn't really make sense for us...
1272                */
1273               color = _gtk_css_parser_read_symbolic_color (parser);
1274
1275               if (color == NULL)
1276                 {
1277                   _gtk_shadow_unref (shadow);
1278                   return FALSE;
1279                 }
1280             }
1281         }
1282
1283       if (!have_color || !have_lengths)
1284         {
1285           _gtk_css_parser_error (parser, "Must specify at least color and offsets");
1286           _gtk_shadow_unref (shadow);
1287           return FALSE;
1288         }
1289
1290       _gtk_shadow_append (shadow,
1291                           hoffset, voffset,
1292                           blur, spread,
1293                           have_inset, color);
1294
1295       gtk_symbolic_color_unref (color);
1296
1297     }
1298   while (_gtk_css_parser_try (parser, ",", TRUE));
1299
1300   g_value_take_boxed (value, shadow);
1301   return TRUE;
1302 }
1303
1304 static void
1305 shadow_value_print (const GValue *value,
1306                     GString      *string)
1307 {
1308   GtkShadow *shadow;
1309
1310   shadow = g_value_get_boxed (value);
1311
1312   if (shadow == NULL)
1313     g_string_append (string, "none");
1314   else
1315     _gtk_shadow_print (shadow, string);
1316 }
1317
1318 static gboolean
1319 background_repeat_value_parse (GtkCssParser *parser,
1320                                GFile *file,
1321                                GValue *value)
1322 {
1323   GtkCssBackgroundRepeat repeat;
1324   int style;
1325
1326   if (!enum_parse (parser, GTK_TYPE_CSS_BACKGROUND_REPEAT_STYLE, &style))
1327     return FALSE;
1328
1329   repeat.repeat = style;
1330
1331   g_value_set_boxed (value, &repeat);
1332
1333   return TRUE;
1334 }
1335
1336 static void
1337 background_repeat_value_print (const GValue *value,
1338                                GString      *string)
1339 {
1340   GtkCssBackgroundRepeat *repeat;
1341
1342   repeat = g_value_get_boxed (value);
1343
1344   enum_print (repeat->repeat, GTK_TYPE_CSS_BACKGROUND_REPEAT_STYLE, string);
1345 }
1346
1347 static gboolean
1348 border_image_repeat_value_parse (GtkCssParser *parser,
1349                                  GFile *file,
1350                                  GValue *value)
1351 {
1352   GtkCssBorderImageRepeat image_repeat;
1353   GtkCssBorderRepeatStyle styles[2];
1354   gint i, v;
1355
1356   for (i = 0; i < 2; i++)
1357     {
1358       if (_gtk_css_parser_try_enum (parser, GTK_TYPE_CSS_BORDER_REPEAT_STYLE, &v))
1359         styles[i] = v;
1360       else if (i == 0)
1361         {
1362           styles[1] = styles[0] = GTK_CSS_REPEAT_STYLE_STRETCH;
1363           break;
1364         }
1365       else
1366         styles[i] = styles[0];
1367     }
1368
1369   image_repeat.hrepeat = styles[0];
1370   image_repeat.vrepeat = styles[1];
1371
1372   g_value_set_boxed (value, &image_repeat);
1373
1374   return TRUE;
1375 }
1376
1377 static void
1378 border_image_repeat_value_print (const GValue *value,
1379                                  GString      *string)
1380 {
1381   GtkCssBorderImageRepeat *image_repeat;
1382
1383   image_repeat = g_value_get_boxed (value);
1384
1385   enum_print (image_repeat->hrepeat, GTK_TYPE_CSS_BORDER_REPEAT_STYLE, string);
1386   if (image_repeat->hrepeat != image_repeat->vrepeat)
1387     {
1388       g_string_append (string, " ");
1389       enum_print (image_repeat->vrepeat, GTK_TYPE_CSS_BORDER_REPEAT_STYLE, string);
1390     }
1391 }
1392
1393 static gboolean
1394 enum_value_parse (GtkCssParser *parser,
1395                   GFile        *base,
1396                   GValue       *value)
1397 {
1398   int v;
1399
1400   if (enum_parse (parser, G_VALUE_TYPE (value), &v))
1401     {
1402       g_value_set_enum (value, v);
1403       return TRUE;
1404     }
1405
1406   return FALSE;
1407 }
1408
1409 static void
1410 enum_value_print (const GValue *value,
1411                   GString      *string)
1412 {
1413   enum_print (g_value_get_enum (value), G_VALUE_TYPE (value), string);
1414 }
1415
1416 static gboolean
1417 flags_value_parse (GtkCssParser *parser,
1418                    GFile        *base,
1419                    GValue       *value)
1420 {
1421   GFlagsClass *flags_class;
1422   GFlagsValue *flag_value;
1423   guint flags = 0;
1424   char *str;
1425
1426   flags_class = g_type_class_ref (G_VALUE_TYPE (value));
1427
1428   do {
1429     str = _gtk_css_parser_try_ident (parser, TRUE);
1430     if (str == NULL)
1431       {
1432         _gtk_css_parser_error (parser, "Expected an identifier");
1433         g_type_class_unref (flags_class);
1434         return FALSE;
1435       }
1436
1437       flag_value = g_flags_get_value_by_nick (flags_class, str);
1438       if (!flag_value)
1439         {
1440           _gtk_css_parser_error (parser,
1441                                  "Unknown flag value '%s' for type '%s'",
1442                                  str, g_type_name (G_VALUE_TYPE (value)));
1443           /* XXX Do we want to return FALSE here? We can get
1444            * forward-compatibility for new values this way
1445            */
1446           g_free (str);
1447           g_type_class_unref (flags_class);
1448           return FALSE;
1449         }
1450
1451       g_free (str);
1452     }
1453   while (_gtk_css_parser_try (parser, ",", FALSE));
1454
1455   g_type_class_unref (flags_class);
1456
1457   g_value_set_enum (value, flags);
1458
1459   return TRUE;
1460 }
1461
1462 static void
1463 flags_value_print (const GValue *value,
1464                    GString      *string)
1465 {
1466   GFlagsClass *flags_class;
1467   guint i, flags;
1468
1469   flags_class = g_type_class_ref (G_VALUE_TYPE (value));
1470   flags = g_value_get_flags (value);
1471
1472   for (i = 0; i < flags_class->n_values; i++)
1473     {
1474       GFlagsValue *flags_value = &flags_class->values[i];
1475
1476       if (flags & flags_value->value)
1477         {
1478           if (string->len != 0)
1479             g_string_append (string, ", ");
1480
1481           g_string_append (string, flags_value->value_nick);
1482         }
1483     }
1484
1485   g_type_class_unref (flags_class);
1486 }
1487
1488 static gboolean
1489 bindings_value_parse (GtkCssParser *parser,
1490                       GFile        *base,
1491                       GValue       *value)
1492 {
1493   GPtrArray *array;
1494   GtkBindingSet *binding_set;
1495   char *name;
1496
1497   array = g_ptr_array_new ();
1498
1499   do {
1500       name = _gtk_css_parser_try_ident (parser, TRUE);
1501       if (name == NULL)
1502         {
1503           _gtk_css_parser_error (parser, "Not a valid binding name");
1504           g_ptr_array_free (array, TRUE);
1505           return FALSE;
1506         }
1507
1508       binding_set = gtk_binding_set_find (name);
1509
1510       if (!binding_set)
1511         {
1512           _gtk_css_parser_error (parser, "No binding set named '%s'", name);
1513           g_free (name);
1514           continue;
1515         }
1516
1517       g_ptr_array_add (array, binding_set);
1518       g_free (name);
1519     }
1520   while (_gtk_css_parser_try (parser, ",", TRUE));
1521
1522   g_value_take_boxed (value, array);
1523
1524   return TRUE;
1525 }
1526
1527 static void
1528 bindings_value_print (const GValue *value,
1529                       GString      *string)
1530 {
1531   GPtrArray *array;
1532   guint i;
1533
1534   array = g_value_get_boxed (value);
1535
1536   for (i = 0; i < array->len; i++)
1537     {
1538       GtkBindingSet *binding_set = g_ptr_array_index (array, i);
1539
1540       if (i > 0)
1541         g_string_append (string, ", ");
1542       g_string_append (string, binding_set->set_name);
1543     }
1544 }
1545
1546 static gboolean
1547 border_corner_radius_value_parse (GtkCssParser *parser,
1548                                   GFile        *base,
1549                                   GValue       *value)
1550 {
1551   GtkCssBorderCornerRadius corner;
1552
1553   if (!_gtk_css_parser_try_double (parser, &corner.horizontal))
1554     {
1555       _gtk_css_parser_error (parser, "Expected a number");
1556       return FALSE;
1557     }
1558   else if (corner.horizontal < 0)
1559     goto negative;
1560
1561   if (!_gtk_css_parser_try_double (parser, &corner.vertical))
1562     corner.vertical = corner.horizontal;
1563   else if (corner.vertical < 0)
1564     goto negative;
1565
1566   g_value_set_boxed (value, &corner);
1567   return TRUE;
1568
1569 negative:
1570   _gtk_css_parser_error (parser, "Border radius values cannot be negative");
1571   return FALSE;
1572 }
1573
1574 static void
1575 border_corner_radius_value_print (const GValue *value,
1576                                   GString      *string)
1577 {
1578   GtkCssBorderCornerRadius *corner;
1579
1580   corner = g_value_get_boxed (value);
1581
1582   if (corner == NULL)
1583     {
1584       g_string_append (string, "none");
1585       return;
1586     }
1587
1588   string_append_double (string, corner->horizontal);
1589   if (corner->horizontal != corner->vertical)
1590     {
1591       g_string_append_c (string, ' ');
1592       string_append_double (string, corner->vertical);
1593     }
1594 }
1595
1596 static gboolean
1597 transparent_color_value_parse (GtkCssParser *parser,
1598                                GFile        *base,
1599                                GValue       *value)
1600 {
1601   if (_gtk_css_parser_try (parser, "transparent", TRUE))
1602     {
1603       GdkRGBA transparent = { 0, 0, 0, 0 };
1604
1605       g_value_set_boxed (value, &transparent);
1606
1607       return TRUE;
1608     }
1609
1610   return rgba_value_parse (parser, base, value);
1611 }
1612
1613 /*** API ***/
1614
1615 static void
1616 css_string_funcs_init (void)
1617 {
1618   if (G_LIKELY (parse_funcs != NULL))
1619     return;
1620
1621   parse_funcs = g_hash_table_new (NULL, NULL);
1622   print_funcs = g_hash_table_new (NULL, NULL);
1623
1624   register_conversion_function (GDK_TYPE_RGBA,
1625                                 rgba_value_parse,
1626                                 rgba_value_print);
1627   register_conversion_function (GDK_TYPE_COLOR,
1628                                 color_value_parse,
1629                                 color_value_print);
1630   register_conversion_function (GTK_TYPE_SYMBOLIC_COLOR,
1631                                 symbolic_color_value_parse,
1632                                 symbolic_color_value_print);
1633   register_conversion_function (PANGO_TYPE_FONT_DESCRIPTION,
1634                                 font_description_value_parse,
1635                                 font_description_value_print);
1636   register_conversion_function (G_TYPE_BOOLEAN,
1637                                 boolean_value_parse,
1638                                 boolean_value_print);
1639   register_conversion_function (G_TYPE_INT,
1640                                 int_value_parse,
1641                                 int_value_print);
1642   register_conversion_function (G_TYPE_UINT,
1643                                 uint_value_parse,
1644                                 uint_value_print);
1645   register_conversion_function (G_TYPE_DOUBLE,
1646                                 double_value_parse,
1647                                 double_value_print);
1648   register_conversion_function (G_TYPE_FLOAT,
1649                                 float_value_parse,
1650                                 float_value_print);
1651   register_conversion_function (G_TYPE_STRING,
1652                                 string_value_parse,
1653                                 string_value_print);
1654   register_conversion_function (GTK_TYPE_THEMING_ENGINE,
1655                                 theming_engine_value_parse,
1656                                 theming_engine_value_print);
1657   register_conversion_function (GTK_TYPE_ANIMATION_DESCRIPTION,
1658                                 animation_description_value_parse,
1659                                 animation_description_value_print);
1660   register_conversion_function (GTK_TYPE_BORDER,
1661                                 border_value_parse,
1662                                 border_value_print);
1663   register_conversion_function (GTK_TYPE_GRADIENT,
1664                                 gradient_value_parse,
1665                                 gradient_value_print);
1666   register_conversion_function (CAIRO_GOBJECT_TYPE_PATTERN,
1667                                 pattern_value_parse,
1668                                 pattern_value_print);
1669   register_conversion_function (GTK_TYPE_CSS_BORDER_IMAGE_REPEAT,
1670                                 border_image_repeat_value_parse,
1671                                 border_image_repeat_value_print);
1672   register_conversion_function (GTK_TYPE_SHADOW,
1673                                 shadow_value_parse,
1674                                 shadow_value_print);
1675   register_conversion_function (G_TYPE_ENUM,
1676                                 enum_value_parse,
1677                                 enum_value_print);
1678   register_conversion_function (G_TYPE_FLAGS,
1679                                 flags_value_parse,
1680                                 flags_value_print);
1681   register_conversion_function (GTK_TYPE_CSS_BACKGROUND_REPEAT,
1682                                 background_repeat_value_parse,
1683                                 background_repeat_value_print);
1684 }
1685
1686 gboolean
1687 _gtk_style_property_parse_value (GtkStyleProperty *property,
1688                                  GValue           *value,
1689                                  GtkCssParser     *parser,
1690                                  GFile            *base)
1691 {
1692   GtkStyleParseFunc func;
1693
1694   g_return_val_if_fail (value != NULL, FALSE);
1695   g_return_val_if_fail (parser != NULL, FALSE);
1696
1697   css_string_funcs_init ();
1698
1699   if (property)
1700     {
1701       if (_gtk_css_parser_try (parser, "initial", TRUE))
1702         {
1703           /* the initial value can be explicitly specified with the
1704            * ‘initial’ keyword which all properties accept.
1705            */
1706           g_value_unset (value);
1707           g_value_init (value, GTK_TYPE_CSS_SPECIAL_VALUE);
1708           g_value_set_enum (value, GTK_CSS_INITIAL);
1709           return TRUE;
1710         }
1711       else if (_gtk_css_parser_try (parser, "inherit", TRUE))
1712         {
1713           /* All properties accept the ‘inherit’ value which
1714            * explicitly specifies that the value will be determined
1715            * by inheritance. The ‘inherit’ value can be used to
1716            * strengthen inherited values in the cascade, and it can
1717            * also be used on properties that are not normally inherited.
1718            */
1719           g_value_unset (value);
1720           g_value_init (value, GTK_TYPE_CSS_SPECIAL_VALUE);
1721           g_value_set_enum (value, GTK_CSS_INHERIT);
1722           return TRUE;
1723         }
1724       else if (property->property_parse_func)
1725         {
1726           GError *error = NULL;
1727           char *value_str;
1728           gboolean success;
1729
1730           value_str = _gtk_css_parser_read_value (parser);
1731           if (value_str == NULL)
1732             return FALSE;
1733
1734           success = (*property->property_parse_func) (value_str, value, &error);
1735
1736           g_free (value_str);
1737
1738           return success;
1739         }
1740
1741       func = property->parse_func;
1742     }
1743   else
1744     func = NULL;
1745
1746   if (func == NULL)
1747     func = g_hash_table_lookup (parse_funcs,
1748                                 GSIZE_TO_POINTER (G_VALUE_TYPE (value)));
1749   if (func == NULL)
1750     func = g_hash_table_lookup (parse_funcs,
1751                                 GSIZE_TO_POINTER (g_type_fundamental (G_VALUE_TYPE (value))));
1752
1753   if (func == NULL)
1754     {
1755       _gtk_css_parser_error (parser,
1756                              "Cannot convert to type '%s'",
1757                              g_type_name (G_VALUE_TYPE (value)));
1758       return FALSE;
1759     }
1760
1761   return (*func) (parser, base, value);
1762 }
1763
1764 void
1765 _gtk_style_property_print_value (GtkStyleProperty *property,
1766                                  const GValue     *value,
1767                                  GString          *string)
1768 {
1769   GtkStylePrintFunc func;
1770
1771   css_string_funcs_init ();
1772
1773   if (G_VALUE_HOLDS (value, GTK_TYPE_CSS_SPECIAL_VALUE))
1774     func = enum_value_print;
1775   else if (property)
1776     func = property->print_func;
1777   else
1778     func = NULL;
1779
1780   if (func == NULL)
1781     func = g_hash_table_lookup (print_funcs,
1782                                 GSIZE_TO_POINTER (G_VALUE_TYPE (value)));
1783   if (func == NULL)
1784     func = g_hash_table_lookup (print_funcs,
1785                                 GSIZE_TO_POINTER (g_type_fundamental (G_VALUE_TYPE (value))));
1786
1787   if (func == NULL)
1788     {
1789       char *s = g_strdup_value_contents (value);
1790       g_string_append (string, s);
1791       g_free (s);
1792       return;
1793     }
1794
1795   func (value, string);
1796 }
1797
1798 static void
1799 _gtk_style_property_default_value (GtkStyleProperty   *property,
1800                                    GtkStyleProperties *properties,
1801                                    GtkStateFlags       state,
1802                                    GValue             *value)
1803 {
1804   g_value_copy (&property->initial_value, value);
1805 }
1806
1807 static gboolean
1808 resolve_color (GtkStyleProperties *props,
1809                GValue             *value)
1810 {
1811   GdkRGBA color;
1812
1813   /* Resolve symbolic color to GdkRGBA */
1814   if (!gtk_symbolic_color_resolve (g_value_get_boxed (value), props, &color))
1815     return FALSE;
1816
1817   /* Store it back, this is where GdkRGBA caching happens */
1818   g_value_unset (value);
1819   g_value_init (value, GDK_TYPE_RGBA);
1820   g_value_set_boxed (value, &color);
1821
1822   return TRUE;
1823 }
1824
1825 static gboolean
1826 resolve_color_rgb (GtkStyleProperties *props,
1827                    GValue             *value)
1828 {
1829   GdkColor color = { 0 };
1830   GdkRGBA rgba;
1831
1832   if (!gtk_symbolic_color_resolve (g_value_get_boxed (value), props, &rgba))
1833     return FALSE;
1834
1835   color.red = rgba.red * 65535. + 0.5;
1836   color.green = rgba.green * 65535. + 0.5;
1837   color.blue = rgba.blue * 65535. + 0.5;
1838
1839   g_value_unset (value);
1840   g_value_init (value, GDK_TYPE_COLOR);
1841   g_value_set_boxed (value, &color);
1842
1843   return TRUE;
1844 }
1845
1846 static gboolean
1847 resolve_win32_theme_part (GtkStyleProperties *props,
1848                           GValue             *value,
1849                           GValue             *value_out,
1850                           GtkStylePropertyContext *context)
1851 {
1852   GtkWin32ThemePart  *part;
1853   cairo_pattern_t *pattern;
1854
1855   part = g_value_get_boxed (value);
1856   if (part == NULL)
1857     return FALSE;
1858
1859   pattern = _gtk_win32_theme_part_render (part, context->width, context->height);
1860
1861   g_value_take_boxed (value_out, pattern);
1862
1863   return TRUE;
1864 }
1865
1866
1867 static gboolean
1868 resolve_gradient (GtkStyleProperties *props,
1869                   GValue             *value)
1870 {
1871   cairo_pattern_t *gradient;
1872
1873   if (!gtk_gradient_resolve (g_value_get_boxed (value), props, &gradient))
1874     return FALSE;
1875
1876   /* Store it back, this is where cairo_pattern_t caching happens */
1877   g_value_unset (value);
1878   g_value_init (value, CAIRO_GOBJECT_TYPE_PATTERN);
1879   g_value_take_boxed (value, gradient);
1880
1881   return TRUE;
1882 }
1883
1884 static gboolean
1885 resolve_shadow (GtkStyleProperties *props,
1886                 GValue *value)
1887 {
1888   GtkShadow *resolved, *base;
1889
1890   base = g_value_get_boxed (value);
1891
1892   if (base == NULL)
1893     return TRUE;
1894
1895   if (_gtk_shadow_get_resolved (base))
1896     return TRUE;
1897
1898   resolved = _gtk_shadow_resolve (base, props);
1899   if (resolved == NULL)
1900     return FALSE;
1901
1902   g_value_take_boxed (value, resolved);
1903
1904   return TRUE;
1905 }
1906
1907 static void
1908 _gtk_style_property_resolve (GtkStyleProperty       *property,
1909                              GtkStyleProperties     *props,
1910                              GtkStateFlags           state,
1911                              GtkStylePropertyContext *context,
1912                              GValue                 *val,
1913                              GValue                 *val_out)
1914 {
1915   if (G_VALUE_TYPE (val) == GTK_TYPE_CSS_SPECIAL_VALUE)
1916     {
1917       GtkCssSpecialValue special = g_value_get_enum (val);
1918
1919       g_value_unset (val);
1920       switch (special)
1921         {
1922         case GTK_CSS_CURRENT_COLOR:
1923           g_assert (property->pspec->value_type == GDK_TYPE_RGBA);
1924           gtk_style_properties_get_property (props, "color", state, val);
1925           break;
1926         case GTK_CSS_INHERIT:
1927         case GTK_CSS_INITIAL:
1928         default:
1929           g_assert_not_reached ();
1930         }
1931     }
1932   else if (G_VALUE_TYPE (val) == GTK_TYPE_SYMBOLIC_COLOR)
1933     {
1934       if (property->pspec->value_type == GDK_TYPE_RGBA)
1935         {
1936           if (resolve_color (props, val))
1937             goto out;
1938         }
1939       else if (property->pspec->value_type == GDK_TYPE_COLOR)
1940         {
1941           if (resolve_color_rgb (props, val))
1942             goto out;
1943         }
1944
1945       g_value_unset (val);
1946       g_value_init (val, property->pspec->value_type);
1947       _gtk_style_property_default_value (property, props, state, val);
1948     }
1949   else if (G_VALUE_TYPE (val) == GDK_TYPE_RGBA)
1950     {
1951       if (g_value_get_boxed (val) == NULL)
1952         _gtk_style_property_default_value (property, props, state, val);
1953     }
1954   else if (G_VALUE_TYPE (val) == GTK_TYPE_GRADIENT)
1955     {
1956       g_return_if_fail (property->pspec->value_type == CAIRO_GOBJECT_TYPE_PATTERN);
1957
1958       if (!resolve_gradient (props, val))
1959         {
1960           g_value_unset (val);
1961           g_value_init (val, CAIRO_GOBJECT_TYPE_PATTERN);
1962           _gtk_style_property_default_value (property, props, state, val);
1963         }
1964     }
1965   else if (G_VALUE_TYPE (val) == GTK_TYPE_SHADOW)
1966     {
1967       if (!resolve_shadow (props, val))
1968         _gtk_style_property_default_value (property, props, state, val);
1969     }
1970   else if (G_VALUE_TYPE (val) == GTK_TYPE_WIN32_THEME_PART)
1971     {
1972       if (resolve_win32_theme_part (props, val, val_out, context))
1973         return; /* Don't copy val, this sets val_out */
1974       _gtk_style_property_default_value (property, props, state, val);
1975     }
1976
1977  out:
1978   g_value_copy (val, val_out);
1979 }
1980
1981 GParameter *
1982 _gtk_style_property_unpack (GtkStyleProperty *property,
1983                             const GValue     *value,
1984                             guint            *n_params)
1985 {
1986   g_return_val_if_fail (property != NULL, NULL);
1987   g_return_val_if_fail (property->unpack_func != NULL, NULL);
1988   g_return_val_if_fail (value != NULL, NULL);
1989   g_return_val_if_fail (n_params != NULL, NULL);
1990
1991   return property->unpack_func (value, n_params);
1992 }
1993
1994 static void
1995 _gtk_style_property_pack (GtkStyleProperty   *property,
1996                           GtkStyleProperties *props,
1997                           GtkStateFlags       state,
1998                           GtkStylePropertyContext *context,
1999                           GValue             *value)
2000 {
2001   g_return_if_fail (property != NULL);
2002   g_return_if_fail (property->pack_func != NULL);
2003   g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
2004   g_return_if_fail (G_IS_VALUE (value));
2005
2006   property->pack_func (value, props, state, context);
2007 }
2008
2009 void
2010 _gtk_style_property_assign (GtkStyleProperty   *property,
2011                             GtkStyleProperties *props,
2012                             GtkStateFlags       state,
2013                             const GValue       *value)
2014 {
2015   g_return_if_fail (GTK_IS_STYLE_PROPERTY (property));
2016   g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
2017   g_return_if_fail (value != NULL);
2018
2019   if (GTK_IS_CSS_SHORTHAND_PROPERTY (property))
2020     {
2021       GParameter *parameters;
2022       guint i, n_parameters;
2023
2024       parameters = _gtk_style_property_unpack (property, value, &n_parameters);
2025
2026       for (i = 0; i < n_parameters; i++)
2027         {
2028           _gtk_style_property_assign (_gtk_style_property_lookup (parameters[i].name),
2029                                       props,
2030                                       state,
2031                                       &parameters[i].value);
2032           g_value_unset (&parameters[i].value);
2033         }
2034       g_free (parameters);
2035       return;
2036     }
2037   else if (GTK_IS_CSS_STYLE_PROPERTY (property))
2038     {
2039       _gtk_style_properties_set_property_by_property (props,
2040                                                       GTK_CSS_STYLE_PROPERTY (property),
2041                                                       state,
2042                                                       value);
2043     }
2044   else
2045     {
2046       g_assert_not_reached ();
2047     }
2048 }
2049
2050 void
2051 _gtk_style_property_query (GtkStyleProperty        *property,
2052                            GtkStyleProperties      *props,
2053                            GtkStateFlags            state,
2054                            GtkStylePropertyContext *context,
2055                            GValue                  *value)
2056 {
2057
2058   g_return_if_fail (property != NULL);
2059   g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
2060   g_return_if_fail (context != NULL);
2061   g_return_if_fail (value != NULL);
2062
2063   g_value_init (value, property->pspec->value_type);
2064
2065   if (GTK_IS_CSS_STYLE_PROPERTY (property))
2066     {
2067       const GValue *val;
2068
2069       val = _gtk_style_properties_peek_property (props, GTK_CSS_STYLE_PROPERTY (property), state);
2070       if (val)
2071         _gtk_style_property_resolve (property, props, state, context, (GValue *) val, value);
2072       else
2073         _gtk_style_property_default_value (property, props, state, value);
2074     }
2075   else if (GTK_IS_CSS_SHORTHAND_PROPERTY (property))
2076     {
2077       _gtk_style_property_pack (property, props, state, context, value);
2078     }
2079   else
2080     {
2081       g_assert_not_reached ();
2082     }
2083 }
2084
2085 #define rgba_init(rgba, r, g, b, a) G_STMT_START{ \
2086   (rgba)->red = (r); \
2087   (rgba)->green = (g); \
2088   (rgba)->blue = (b); \
2089   (rgba)->alpha = (a); \
2090 }G_STMT_END
2091 static void
2092 gtk_style_property_init_properties (void)
2093 {
2094   static gboolean initialized = FALSE;
2095   GValue value = { 0, };
2096   char *default_font_family[] = { "Sans", NULL };
2097   GdkRGBA rgba;
2098
2099   if (G_LIKELY (initialized))
2100     return;
2101
2102   initialized = TRUE;
2103
2104   g_value_init (&value, GDK_TYPE_RGBA);
2105   rgba_init (&rgba, 1, 1, 1, 1);
2106   g_value_set_boxed (&value, &rgba);
2107   _gtk_style_property_register           (g_param_spec_boxed ("color",
2108                                           "Foreground color",
2109                                           "Foreground color",
2110                                           GDK_TYPE_RGBA, 0),
2111                                           GTK_STYLE_PROPERTY_INHERIT,
2112                                           NULL,
2113                                           NULL,
2114                                           NULL,
2115                                           &value);
2116   rgba_init (&rgba, 0, 0, 0, 0);
2117   g_value_set_boxed (&value, &rgba);
2118   _gtk_style_property_register           (g_param_spec_boxed ("background-color",
2119                                           "Background color",
2120                                           "Background color",
2121                                           GDK_TYPE_RGBA, 0),
2122                                           0,
2123                                           NULL,
2124                                           transparent_color_value_parse,
2125                                           NULL,
2126                                           &value);
2127   g_value_unset (&value);
2128
2129   g_value_init (&value, G_TYPE_STRV);
2130   g_value_set_boxed (&value, default_font_family);
2131   _gtk_style_property_register           (g_param_spec_boxed ("font-family",
2132                                                               "Font family",
2133                                                               "Font family",
2134                                                               G_TYPE_STRV, 0),
2135                                           GTK_STYLE_PROPERTY_INHERIT,
2136                                           NULL,
2137                                           font_family_parse,
2138                                           font_family_value_print,
2139                                           &value);
2140   g_value_unset (&value);
2141   _gtk_style_property_register           (g_param_spec_enum ("font-style",
2142                                                              "Font style",
2143                                                              "Font style",
2144                                                              PANGO_TYPE_STYLE,
2145                                                              PANGO_STYLE_NORMAL, 0),
2146                                           GTK_STYLE_PROPERTY_INHERIT,
2147                                           NULL,
2148                                           NULL,
2149                                           NULL,
2150                                           NULL);
2151   _gtk_style_property_register           (g_param_spec_enum ("font-variant",
2152                                                              "Font variant",
2153                                                              "Font variant",
2154                                                              PANGO_TYPE_VARIANT,
2155                                                              PANGO_VARIANT_NORMAL, 0),
2156                                           GTK_STYLE_PROPERTY_INHERIT,
2157                                           NULL,
2158                                           NULL,
2159                                           NULL,
2160                                           NULL);
2161   /* xxx: need to parse this properly, ie parse the numbers */
2162   _gtk_style_property_register           (g_param_spec_enum ("font-weight",
2163                                                              "Font weight",
2164                                                              "Font weight",
2165                                                              PANGO_TYPE_WEIGHT,
2166                                                              PANGO_WEIGHT_NORMAL, 0),
2167                                           GTK_STYLE_PROPERTY_INHERIT,
2168                                           NULL,
2169                                           NULL,
2170                                           NULL,
2171                                           NULL);
2172   g_value_init (&value, G_TYPE_DOUBLE);
2173   g_value_set_double (&value, 10);
2174   _gtk_style_property_register           (g_param_spec_double ("font-size",
2175                                                                "Font size",
2176                                                                "Font size",
2177                                                                0, G_MAXDOUBLE, 0, 0),
2178                                           GTK_STYLE_PROPERTY_INHERIT,
2179                                           NULL,
2180                                           NULL,
2181                                           NULL,
2182                                           &value);
2183   g_value_unset (&value);
2184
2185   _gtk_style_property_register           (g_param_spec_boxed ("text-shadow",
2186                                                               "Text shadow",
2187                                                               "Text shadow",
2188                                                               GTK_TYPE_SHADOW, 0),
2189                                           GTK_STYLE_PROPERTY_INHERIT,
2190                                           NULL,
2191                                           NULL,
2192                                           NULL,
2193                                           NULL);
2194
2195   _gtk_style_property_register           (g_param_spec_boxed ("icon-shadow",
2196                                                               "Icon shadow",
2197                                                               "Icon shadow",
2198                                                               GTK_TYPE_SHADOW, 0),
2199                                           GTK_STYLE_PROPERTY_INHERIT,
2200                                           NULL,
2201                                           NULL,
2202                                           NULL,
2203                                           NULL);
2204
2205   gtk_style_properties_register_property (NULL,
2206                                           g_param_spec_boxed ("box-shadow",
2207                                                               "Box shadow",
2208                                                               "Box shadow",
2209                                                               GTK_TYPE_SHADOW, 0));
2210   gtk_style_properties_register_property (NULL,
2211                                           g_param_spec_int ("margin-top",
2212                                                             "margin top",
2213                                                             "Margin at top",
2214                                                             0, G_MAXINT, 0, 0));
2215   gtk_style_properties_register_property (NULL,
2216                                           g_param_spec_int ("margin-left",
2217                                                             "margin left",
2218                                                             "Margin at left",
2219                                                             0, G_MAXINT, 0, 0));
2220   gtk_style_properties_register_property (NULL,
2221                                           g_param_spec_int ("margin-bottom",
2222                                                             "margin bottom",
2223                                                             "Margin at bottom",
2224                                                             0, G_MAXINT, 0, 0));
2225   gtk_style_properties_register_property (NULL,
2226                                           g_param_spec_int ("margin-right",
2227                                                             "margin right",
2228                                                             "Margin at right",
2229                                                             0, G_MAXINT, 0, 0));
2230   gtk_style_properties_register_property (NULL,
2231                                           g_param_spec_int ("padding-top",
2232                                                             "padding top",
2233                                                             "Padding at top",
2234                                                             0, G_MAXINT, 0, 0));
2235   gtk_style_properties_register_property (NULL,
2236                                           g_param_spec_int ("padding-left",
2237                                                             "padding left",
2238                                                             "Padding at left",
2239                                                             0, G_MAXINT, 0, 0));
2240   gtk_style_properties_register_property (NULL,
2241                                           g_param_spec_int ("padding-bottom",
2242                                                             "padding bottom",
2243                                                             "Padding at bottom",
2244                                                             0, G_MAXINT, 0, 0));
2245   gtk_style_properties_register_property (NULL,
2246                                           g_param_spec_int ("padding-right",
2247                                                             "padding right",
2248                                                             "Padding at right",
2249                                                             0, G_MAXINT, 0, 0));
2250   gtk_style_properties_register_property (NULL,
2251                                           g_param_spec_int ("border-top-width",
2252                                                             "border top width",
2253                                                             "Border width at top",
2254                                                             0, G_MAXINT, 0, 0));
2255   gtk_style_properties_register_property (NULL,
2256                                           g_param_spec_int ("border-left-width",
2257                                                             "border left width",
2258                                                             "Border width at left",
2259                                                             0, G_MAXINT, 0, 0));
2260   gtk_style_properties_register_property (NULL,
2261                                           g_param_spec_int ("border-bottom-width",
2262                                                             "border bottom width",
2263                                                             "Border width at bottom",
2264                                                             0, G_MAXINT, 0, 0));
2265   gtk_style_properties_register_property (NULL,
2266                                           g_param_spec_int ("border-right-width",
2267                                                             "border right width",
2268                                                             "Border width at right",
2269                                                             0, G_MAXINT, 0, 0));
2270
2271   _gtk_style_property_register           (g_param_spec_boxed ("border-top-left-radius",
2272                                                               "Border top left radius",
2273                                                               "Border radius of top left corner, in pixels",
2274                                                               GTK_TYPE_CSS_BORDER_CORNER_RADIUS, 0),
2275                                           0,
2276                                           NULL,
2277                                           border_corner_radius_value_parse,
2278                                           border_corner_radius_value_print,
2279                                           NULL);
2280   _gtk_style_property_register           (g_param_spec_boxed ("border-top-right-radius",
2281                                                               "Border top right radius",
2282                                                               "Border radius of top right corner, in pixels",
2283                                                               GTK_TYPE_CSS_BORDER_CORNER_RADIUS, 0),
2284                                           0,
2285                                           NULL,
2286                                           border_corner_radius_value_parse,
2287                                           border_corner_radius_value_print,
2288                                           NULL);
2289   _gtk_style_property_register           (g_param_spec_boxed ("border-bottom-right-radius",
2290                                                               "Border bottom right radius",
2291                                                               "Border radius of bottom right corner, in pixels",
2292                                                               GTK_TYPE_CSS_BORDER_CORNER_RADIUS, 0),
2293                                           0,
2294                                           NULL,
2295                                           border_corner_radius_value_parse,
2296                                           border_corner_radius_value_print,
2297                                           NULL);
2298   _gtk_style_property_register           (g_param_spec_boxed ("border-bottom-left-radius",
2299                                                               "Border bottom left radius",
2300                                                               "Border radius of bottom left corner, in pixels",
2301                                                               GTK_TYPE_CSS_BORDER_CORNER_RADIUS, 0),
2302                                           0,
2303                                           NULL,
2304                                           border_corner_radius_value_parse,
2305                                           border_corner_radius_value_print,
2306                                           NULL);
2307
2308   gtk_style_properties_register_property (NULL,
2309                                           g_param_spec_enum ("border-style",
2310                                                              "Border style",
2311                                                              "Border style",
2312                                                              GTK_TYPE_BORDER_STYLE,
2313                                                              GTK_BORDER_STYLE_NONE, 0));
2314   gtk_style_properties_register_property (NULL,
2315                                           g_param_spec_enum ("background-clip",
2316                                                              "Background clip",
2317                                                              "Background clip",
2318                                                              GTK_TYPE_CSS_AREA,
2319                                                              GTK_CSS_AREA_BORDER_BOX, 0));
2320   gtk_style_properties_register_property (NULL,
2321                                           g_param_spec_enum ("background-origin",
2322                                                              "Background origin",
2323                                                              "Background origin",
2324                                                              GTK_TYPE_CSS_AREA,
2325                                                              GTK_CSS_AREA_PADDING_BOX, 0));
2326   g_value_init (&value, GTK_TYPE_CSS_SPECIAL_VALUE);
2327   g_value_set_enum (&value, GTK_CSS_CURRENT_COLOR);
2328   _gtk_style_property_register           (g_param_spec_boxed ("border-top-color",
2329                                                               "Border top color",
2330                                                               "Border top color",
2331                                                               GDK_TYPE_RGBA, 0),
2332                                           0,
2333                                           NULL,
2334                                           transparent_color_value_parse,
2335                                           NULL,
2336                                           &value);
2337   _gtk_style_property_register           (g_param_spec_boxed ("border-right-color",
2338                                                               "Border right color",
2339                                                               "Border right color",
2340                                                               GDK_TYPE_RGBA, 0),
2341                                           0,
2342                                           NULL,
2343                                           transparent_color_value_parse,
2344                                           NULL,
2345                                           &value);
2346   _gtk_style_property_register           (g_param_spec_boxed ("border-bottom-color",
2347                                                               "Border bottom color",
2348                                                               "Border bottom color",
2349                                                               GDK_TYPE_RGBA, 0),
2350                                           0,
2351                                           NULL,
2352                                           transparent_color_value_parse,
2353                                           NULL,
2354                                           &value);
2355   _gtk_style_property_register           (g_param_spec_boxed ("border-left-color",
2356                                                               "Border left color",
2357                                                               "Border left color",
2358                                                               GDK_TYPE_RGBA, 0),
2359                                           0,
2360                                           NULL,
2361                                           transparent_color_value_parse,
2362                                           NULL,
2363                                           &value);
2364   g_value_unset (&value);
2365
2366   gtk_style_properties_register_property (NULL,
2367                                           g_param_spec_boxed ("background-image",
2368                                                               "Background Image",
2369                                                               "Background Image",
2370                                                               CAIRO_GOBJECT_TYPE_PATTERN, 0));
2371   gtk_style_properties_register_property (NULL,
2372                                           g_param_spec_boxed ("background-repeat",
2373                                                               "Background repeat",
2374                                                               "Background repeat",
2375                                                               GTK_TYPE_CSS_BACKGROUND_REPEAT, 0));
2376
2377   gtk_style_properties_register_property (NULL,
2378                                           g_param_spec_boxed ("border-image-source",
2379                                                               "Border image source",
2380                                                               "Border image source",
2381                                                               CAIRO_GOBJECT_TYPE_PATTERN, 0));
2382   gtk_style_properties_register_property (NULL,
2383                                           g_param_spec_boxed ("border-image-repeat",
2384                                                               "Border image repeat",
2385                                                               "Border image repeat",
2386                                                               GTK_TYPE_CSS_BORDER_IMAGE_REPEAT, 0));
2387   gtk_style_properties_register_property (NULL,
2388                                           g_param_spec_boxed ("border-image-slice",
2389                                                               "Border image slice",
2390                                                               "Border image slice",
2391                                                               GTK_TYPE_BORDER, 0));
2392   g_value_init (&value, GTK_TYPE_BORDER);
2393   _gtk_style_property_register           (g_param_spec_boxed ("border-image-width",
2394                                                               "Border image width",
2395                                                               "Border image width",
2396                                                               GTK_TYPE_BORDER, 0),
2397                                           0,
2398                                           NULL,
2399                                           NULL,
2400                                           NULL,
2401                                           &value);
2402   g_value_unset (&value);
2403   gtk_style_properties_register_property (NULL,
2404                                           g_param_spec_object ("engine",
2405                                                                "Theming Engine",
2406                                                                "Theming Engine",
2407                                                                GTK_TYPE_THEMING_ENGINE, 0));
2408   gtk_style_properties_register_property (NULL,
2409                                           g_param_spec_boxed ("transition",
2410                                                               "Transition animation description",
2411                                                               "Transition animation description",
2412                                                               GTK_TYPE_ANIMATION_DESCRIPTION, 0));
2413
2414   /* Private property holding the binding sets */
2415   _gtk_style_property_register           (g_param_spec_boxed ("gtk-key-bindings",
2416                                                               "Key bindings",
2417                                                               "Key bindings",
2418                                                               G_TYPE_PTR_ARRAY, 0),
2419                                           0,
2420                                           NULL,
2421                                           bindings_value_parse,
2422                                           bindings_value_print,
2423                                           NULL);
2424
2425   /* initialize shorthands last, they depend on the real properties existing */
2426   _gtk_css_shorthand_property_init_properties ();
2427 }
2428
2429 /**
2430  * _gtk_style_property_lookup:
2431  * @name: name of the property to lookup
2432  *
2433  * Looks up the CSS property with the given @name. If no such
2434  * property exists, %NULL is returned.
2435  *
2436  * Returns: (transfer none): The property or %NULL if no
2437  *     property with the given name exists.
2438  **/
2439 GtkStyleProperty *
2440 _gtk_style_property_lookup (const char *name)
2441 {
2442   GtkStylePropertyClass *klass;
2443
2444   g_return_val_if_fail (name != NULL, NULL);
2445
2446   gtk_style_property_init_properties ();
2447
2448   klass = g_type_class_peek (GTK_TYPE_STYLE_PROPERTY);
2449
2450   return g_hash_table_lookup (klass->properties, name);
2451 }
2452
2453 /**
2454  * _gtk_style_property_get_name:
2455  * @property: the property to query
2456  *
2457  * Gets the name of the given property.
2458  *
2459  * Returns: the name of the property
2460  **/
2461 const char *
2462 _gtk_style_property_get_name (GtkStyleProperty *property)
2463 {
2464   g_return_val_if_fail (GTK_IS_STYLE_PROPERTY (property), NULL);
2465
2466   return property->name;
2467 }
2468
2469 /**
2470  * _gtk_style_property_get_value_type:
2471  * @property: the property to query
2472  *
2473  * Gets the value type of the @property, if the property is usable
2474  * in public API via _gtk_style_property_assign() and
2475  * _gtk_style_property_query(). If the @property is not usable in that
2476  * way, %G_TYPE_NONE is returned.
2477  *
2478  * Returns: the value type in use or %G_TYPE_NONE if none.
2479  **/
2480 GType
2481 _gtk_style_property_get_value_type (GtkStyleProperty *property)
2482 {
2483   g_return_val_if_fail (GTK_IS_STYLE_PROPERTY (property), G_TYPE_NONE);
2484
2485   return property->value_type;
2486 }
2487
2488
2489 void
2490 _gtk_style_property_register (GParamSpec               *pspec,
2491                               GtkStylePropertyFlags     flags,
2492                               GtkStylePropertyParser    property_parse_func,
2493                               GtkStyleParseFunc         parse_func,
2494                               GtkStylePrintFunc         print_func,
2495                               const GValue *            initial_value)
2496 {
2497   GtkStyleProperty *node;
2498
2499   node = g_object_new (GTK_TYPE_CSS_STYLE_PROPERTY,
2500                        "name", pspec->name,
2501                        "value-type", pspec->value_type,
2502                        NULL);
2503   node->flags = flags;
2504   node->pspec = pspec;
2505   node->property_parse_func = property_parse_func;
2506   node->parse_func = parse_func;
2507   node->print_func = print_func;
2508
2509   /* initialize the initial value */
2510   if (initial_value)
2511     {
2512       g_value_init (&node->initial_value, G_VALUE_TYPE (initial_value));
2513       g_value_copy (initial_value, &node->initial_value);
2514     }
2515   else
2516     {
2517       g_value_init (&node->initial_value, pspec->value_type);
2518       if (pspec->value_type == GTK_TYPE_THEMING_ENGINE)
2519         g_value_set_object (&node->initial_value, gtk_theming_engine_load (NULL));
2520       else if (pspec->value_type == PANGO_TYPE_FONT_DESCRIPTION)
2521         g_value_take_boxed (&node->initial_value, pango_font_description_from_string ("Sans 10"));
2522       else if (pspec->value_type == GDK_TYPE_RGBA)
2523         {
2524           GdkRGBA color;
2525           gdk_rgba_parse (&color, "pink");
2526           g_value_set_boxed (&node->initial_value, &color);
2527         }
2528       else if (pspec->value_type == GTK_TYPE_BORDER)
2529         {
2530           g_value_take_boxed (&node->initial_value, gtk_border_new ());
2531         }
2532       else
2533         g_param_value_set_default (pspec, &node->initial_value);
2534     }
2535 }