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

   1 /*
   2  * Copyright © 2011 Red Hat Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Authors: Benjamin Otte <otte@gnome.org>
  18  */
  19
  20 #include "config.h"
  21
  22 #include "gtkcssshorthandpropertyprivate.h"
  23
  24 #include <cairo-gobject.h>
  25 #include <math.h>
  26
  27 #include "gtkcssenumvalueprivate.h"
  28 #include "gtkcssimageprivate.h"
  29 #include "gtkcssimagevalueprivate.h"
  30 #include "gtkcssnumbervalueprivate.h"
  31 #include "gtkcssstylefuncsprivate.h"
  32 #include "gtkcsstypesprivate.h"
  33 #include "gtkcssvalueprivate.h"
  34 #include "gtkprivatetypebuiltins.h"
  35 #include "gtkstylepropertiesprivate.h"
  36 #include "gtksymboliccolorprivate.h"
  37 #include "gtktypebuiltins.h"
  38
  39 /* this is in case round() is not provided by the compiler,
  40  * such as in the case of C89 compilers, like MSVC
  41  */
  42 #include "fallback-c89.c"
  43
  44 /*** PARSING ***/
  45
  46 static gboolean
  47 value_is_done_parsing (GtkCssParser *parser)
  48 {
  49   return _gtk_css_parser_is_eof (parser) ||
  50          _gtk_css_parser_begins_with (parser, ';') ||
  51          _gtk_css_parser_begins_with (parser, '}');
  52 }
  53
  54 static gboolean
  55 parse_four_numbers (GtkCssShorthandProperty  *shorthand,
  56                     GtkCssValue             **values,
  57                     GtkCssParser             *parser,
  58                     GtkCssNumberParseFlags    flags)
  59 {
  60   guint i;
  61
  62   for (i = 0; i < 4; i++)
  63     {
  64       if (!_gtk_css_parser_has_number (parser))
  65         break;
  66
  67       values[i] = _gtk_css_number_value_parse (parser, flags);
  68       if (values[i] == NULL)
  69         return FALSE;
  70     }
  71
  72   if (i == 0)
  73     {
  74       _gtk_css_parser_error (parser, "Expected a length");
  75       return FALSE;
  76     }
  77
  78   for (; i < 4; i++)
  79     {
  80       values[i] = _gtk_css_value_ref (values[(i - 1) >> 1]);
  81     }
  82
  83   return TRUE;
  84 }
  85
  86 static gboolean
  87 parse_margin (GtkCssShorthandProperty  *shorthand,
  88               GtkCssValue             **values,
  89               GtkCssParser             *parser,
  90               GFile                    *base)
  91 {
  92   return parse_four_numbers (shorthand,
  93                              values,
  94                              parser,
  95                              GTK_CSS_NUMBER_AS_PIXELS
  96                              | GTK_CSS_PARSE_LENGTH);
  97 }
  98
  99 static gboolean
 100 parse_padding (GtkCssShorthandProperty  *shorthand,
 101                GtkCssValue             **values,
 102                GtkCssParser             *parser,
 103                GFile                    *base)
 104 {
 105   return parse_four_numbers (shorthand,
 106                              values,
 107                              parser,
 108                              GTK_CSS_POSITIVE_ONLY
 109                              | GTK_CSS_NUMBER_AS_PIXELS
 110                              | GTK_CSS_PARSE_LENGTH);
 111 }
 112
 113 static gboolean
 114 parse_border_width (GtkCssShorthandProperty  *shorthand,
 115                     GtkCssValue             **values,
 116                     GtkCssParser             *parser,
 117                     GFile                    *base)
 118 {
 119   return parse_four_numbers (shorthand,
 120                              values,
 121                              parser,
 122                              GTK_CSS_POSITIVE_ONLY
 123                              | GTK_CSS_NUMBER_AS_PIXELS
 124                              | GTK_CSS_PARSE_LENGTH);
 125 }
 126
 127 static gboolean
 128 parse_border_radius (GtkCssShorthandProperty  *shorthand,
 129                      GtkCssValue             **values,
 130                      GtkCssParser             *parser,
 131                      GFile                    *base)
 132 {
 133   GtkCssBorderCornerRadius borders[4];
 134   guint i;
 135
 136   for (i = 0; i < G_N_ELEMENTS (borders); i++)
 137     {
 138       if (!_gtk_css_parser_has_number (parser))
 139         break;
 140       if (!_gtk_css_parser_read_number (parser,
 141                                         &borders[i].horizontal,
 142                                         GTK_CSS_POSITIVE_ONLY
 143                                         | GTK_CSS_PARSE_PERCENT
 144                                         | GTK_CSS_NUMBER_AS_PIXELS
 145                                         | GTK_CSS_PARSE_LENGTH))
 146         return FALSE;
 147     }
 148
 149   if (i == 0)
 150     {
 151       _gtk_css_parser_error (parser, "Expected a number");
 152       return FALSE;
 153     }
 154
 155   /* The magic (i - 1) >> 1 below makes it take the correct value
 156    * according to spec. Feel free to check the 4 cases */
 157   for (; i < G_N_ELEMENTS (borders); i++)
 158     borders[i].horizontal = borders[(i - 1) >> 1].horizontal;
 159
 160   if (_gtk_css_parser_try (parser, "/", TRUE))
 161     {
 162       for (i = 0; i < G_N_ELEMENTS (borders); i++)
 163         {
 164           if (!_gtk_css_parser_has_number (parser))
 165             break;
 166           if (!_gtk_css_parser_read_number (parser,
 167                                             &borders[i].vertical,
 168                                             GTK_CSS_POSITIVE_ONLY
 169                                             | GTK_CSS_PARSE_PERCENT
 170                                             | GTK_CSS_NUMBER_AS_PIXELS
 171                                             | GTK_CSS_PARSE_LENGTH))
 172             return FALSE;
 173         }
 174
 175       if (i == 0)
 176         {
 177           _gtk_css_parser_error (parser, "Expected a number");
 178           return FALSE;
 179         }
 180
 181       for (; i < G_N_ELEMENTS (borders); i++)
 182         borders[i].vertical = borders[(i - 1) >> 1].vertical;
 183
 184     }
 185   else
 186     {
 187       for (i = 0; i < G_N_ELEMENTS (borders); i++)
 188         borders[i].vertical = borders[i].horizontal;
 189     }
 190
 191   for (i = 0; i < G_N_ELEMENTS (borders); i++)
 192     {
 193       values[i] = _gtk_css_value_new_from_border_corner_radius (&borders[i]);
 194     }
 195
 196   return TRUE;
 197 }
 198
 199 static gboolean
 200 parse_border_color (GtkCssShorthandProperty  *shorthand,
 201                     GtkCssValue             **values,
 202                     GtkCssParser             *parser,
 203                     GFile                    *base)
 204 {
 205   GtkSymbolicColor *symbolic;
 206   guint i;
 207
 208   for (i = 0; i < 4; i++)
 209     {
 210       if (_gtk_css_parser_try (parser, "currentcolor", TRUE))
 211         {
 212           symbolic = gtk_symbolic_color_ref (_gtk_symbolic_color_get_current_color ());
 213         }
 214       else
 215         {
 216           symbolic = _gtk_css_parser_read_symbolic_color (parser);
 217           if (symbolic == NULL)
 218             return FALSE;
 219         }
 220
 221       values[i] = _gtk_css_value_new_take_symbolic_color (symbolic);
 222
 223       if (value_is_done_parsing (parser))
 224         break;
 225     }
 226
 227   for (i++; i < 4; i++)
 228     {
 229       values[i] = _gtk_css_value_ref (values[(i - 1) >> 1]);
 230     }
 231
 232   return TRUE;
 233 }
 234
 235 static gboolean
 236 parse_border_style (GtkCssShorthandProperty  *shorthand,
 237                     GtkCssValue             **values,
 238                     GtkCssParser             *parser,
 239                     GFile                    *base)
 240 {
 241   guint i;
 242
 243   for (i = 0; i < 4; i++)
 244     {
 245       values[i] = _gtk_css_border_style_value_try_parse (parser);
 246       if (values[i] == NULL)
 247         break;
 248     }
 249
 250   if (i == 0)
 251     {
 252       _gtk_css_parser_error (parser, "Expected a border style");
 253       return FALSE;
 254     }
 255
 256   for (; i < 4; i++)
 257     values[i] = _gtk_css_value_ref (values[(i - 1) >> 1]);
 258
 259   return TRUE;
 260 }
 261
 262 static gboolean
 263 parse_border_image (GtkCssShorthandProperty  *shorthand,
 264                     GtkCssValue             **values,
 265                     GtkCssParser             *parser,
 266                     GFile                    *base)
 267 {
 268   GValue value = G_VALUE_INIT;
 269   GtkCssImage *image;
 270
 271   if (_gtk_css_parser_try (parser, "none", TRUE))
 272     image = NULL;
 273   else
 274     {
 275       image = _gtk_css_image_new_parse (parser, base);
 276       if (!image)
 277         return FALSE;
 278     }
 279   values[0] = _gtk_css_image_value_new (image);
 280
 281   if (value_is_done_parsing (parser))
 282     return TRUE;
 283
 284   g_value_init (&value, GTK_TYPE_BORDER);
 285   if (!_gtk_css_style_parse_value (&value, parser, base))
 286     return FALSE;
 287   values[1] = _gtk_css_value_new_from_gvalue (&value);
 288   g_value_unset (&value);
 289
 290   if (_gtk_css_parser_try (parser, "/", TRUE))
 291     {
 292       g_value_init (&value, GTK_TYPE_BORDER);
 293       if (!_gtk_css_style_parse_value (&value, parser, base))
 294         return FALSE;
 295       values[2] = _gtk_css_value_new_from_gvalue (&value);
 296       g_value_unset (&value);
 297     }
 298
 299   if (value_is_done_parsing (parser))
 300     return TRUE;
 301
 302   g_value_init (&value, GTK_TYPE_CSS_BORDER_IMAGE_REPEAT);
 303   if (!_gtk_css_style_parse_value (&value, parser, base))
 304     return FALSE;
 305   values[3] = _gtk_css_value_new_from_gvalue (&value);
 306   g_value_unset (&value);
 307
 308   return TRUE;
 309 }
 310
 311 static gboolean
 312 parse_border_side (GtkCssShorthandProperty  *shorthand,
 313                    GtkCssValue             **values,
 314                    GtkCssParser             *parser,
 315                    GFile                    *base)
 316 {
 317   do
 318   {
 319     if (values[0] == NULL &&
 320          _gtk_css_parser_has_number (parser))
 321       {
 322         values[0] = _gtk_css_number_value_parse (parser,
 323                                                  GTK_CSS_POSITIVE_ONLY
 324                                                  | GTK_CSS_NUMBER_AS_PIXELS
 325                                                  | GTK_CSS_PARSE_LENGTH);
 326         if (values[0] == NULL)
 327           return FALSE;
 328       }
 329     else if (values[1] == NULL &&
 330              (values[1] = _gtk_css_border_style_value_try_parse (parser)))
 331       {
 332         /* Nothing to do */
 333       }
 334     else if (values[2] == NULL)
 335       {
 336         GtkSymbolicColor *symbolic;
 337
 338         symbolic = _gtk_css_parser_read_symbolic_color (parser);
 339         if (symbolic == NULL)
 340           return FALSE;
 341
 342         values[2] = _gtk_css_value_new_take_symbolic_color (symbolic);
 343       }
 344     else
 345       {
 346         /* We parsed everything and there's still stuff left?
 347          * Pretend we didn't notice and let the normal code produce
 348          * a 'junk at end of value' error */
 349         break;
 350       }
 351   }
 352   while (!value_is_done_parsing (parser));
 353
 354   return TRUE;
 355 }
 356
 357 static gboolean
 358 parse_border (GtkCssShorthandProperty  *shorthand,
 359               GtkCssValue             **values,
 360               GtkCssParser             *parser,
 361               GFile                    *base)
 362 {
 363   do
 364   {
 365     if (values[0] == NULL &&
 366          _gtk_css_parser_has_number (parser))
 367       {
 368         values[0] = _gtk_css_number_value_parse (parser,
 369                                                  GTK_CSS_POSITIVE_ONLY
 370                                                  | GTK_CSS_NUMBER_AS_PIXELS
 371                                                  | GTK_CSS_PARSE_LENGTH);
 372         if (values[0] == NULL)
 373           return FALSE;
 374         values[1] = _gtk_css_value_ref (values[0]);
 375         values[2] = _gtk_css_value_ref (values[0]);
 376         values[3] = _gtk_css_value_ref (values[0]);
 377       }
 378     else if (values[4] == NULL &&
 379              (values[4] = _gtk_css_border_style_value_try_parse (parser)))
 380       {
 381         values[5] = _gtk_css_value_ref (values[4]);
 382         values[6] = _gtk_css_value_ref (values[4]);
 383         values[7] = _gtk_css_value_ref (values[4]);
 384       }
 385     else if (!G_IS_VALUE (&values[8]))
 386       {
 387         GtkSymbolicColor *symbolic;
 388
 389         symbolic = _gtk_css_parser_read_symbolic_color (parser);
 390         if (symbolic == NULL)
 391           return FALSE;
 392
 393         values[8] = _gtk_css_value_new_take_symbolic_color (symbolic);
 394         values[9] = _gtk_css_value_ref (values[8]);
 395         values[10] = _gtk_css_value_ref (values[8]);
 396         values[11] = _gtk_css_value_ref (values[8]);
 397       }
 398     else
 399       {
 400         /* We parsed everything and there's still stuff left?
 401          * Pretend we didn't notice and let the normal code produce
 402          * a 'junk at end of value' error */
 403         break;
 404       }
 405   }
 406   while (!value_is_done_parsing (parser));
 407
 408   /* Note that border-image values are not set: according to the spec
 409      they just need to be reset when using the border shorthand */
 410
 411   return TRUE;
 412 }
 413
 414 static gboolean
 415 parse_font (GtkCssShorthandProperty  *shorthand,
 416             GtkCssValue             **values,
 417             GtkCssParser             *parser,
 418             GFile                    *base)
 419 {
 420   PangoFontDescription *desc;
 421   guint mask;
 422   char *str;
 423
 424   str = _gtk_css_parser_read_value (parser);
 425   if (str == NULL)
 426     return FALSE;
 427
 428   desc = pango_font_description_from_string (str);
 429   g_free (str);
 430
 431   mask = pango_font_description_get_set_fields (desc);
 432
 433   if (mask & PANGO_FONT_MASK_FAMILY)
 434     {
 435       char **strv = g_new0 (char *, 2);
 436
 437       strv[0] = g_strdup (pango_font_description_get_family (desc));
 438       values[0] = _gtk_css_value_new_take_strv (strv);
 439     }
 440   if (mask & PANGO_FONT_MASK_STYLE)
 441     {
 442       values[1] = _gtk_css_font_style_value_new (pango_font_description_get_style (desc));
 443     }
 444   if (mask & PANGO_FONT_MASK_VARIANT)
 445     {
 446       values[2] = _gtk_css_font_variant_value_new (pango_font_description_get_variant (desc));
 447     }
 448   if (mask & PANGO_FONT_MASK_WEIGHT)
 449     {
 450       values[3] = _gtk_css_font_weight_value_new (pango_font_description_get_weight (desc));
 451     }
 452   if (mask & PANGO_FONT_MASK_SIZE)
 453     {
 454       values[4] = _gtk_css_value_new_from_double ((double) pango_font_description_get_size (desc) / PANGO_SCALE);
 455     }
 456
 457   pango_font_description_free (desc);
 458
 459   return TRUE;
 460 }
 461
 462 static gboolean
 463 parse_background (GtkCssShorthandProperty  *shorthand,
 464                   GtkCssValue             **values,
 465                   GtkCssParser             *parser,
 466                   GFile                    *base)
 467 {
 468   int enum_value;
 469
 470   do
 471     {
 472       /* the image part */
 473       if (values[0] == NULL &&
 474           (_gtk_css_parser_has_prefix (parser, "none") ||
 475            _gtk_css_image_can_parse (parser)))
 476         {
 477           GtkCssImage *image;
 478
 479           if (_gtk_css_parser_try (parser, "none", TRUE))
 480             image = NULL;
 481           else
 482             {
 483               image = _gtk_css_image_new_parse (parser, base);
 484               if (image == NULL)
 485                 return FALSE;
 486             }
 487
 488           values[0] = _gtk_css_image_value_new (image);
 489         }
 490       else if (values[1] == NULL &&
 491                _gtk_css_parser_try_enum (parser, GTK_TYPE_CSS_BACKGROUND_REPEAT, &enum_value))
 492         {
 493           if (enum_value <= GTK_CSS_BACKGROUND_REPEAT_MASK)
 494             {
 495               int vertical;
 496
 497               if (_gtk_css_parser_try_enum (parser, GTK_TYPE_CSS_BACKGROUND_REPEAT, &vertical))
 498                 {
 499                   if (vertical >= GTK_CSS_BACKGROUND_REPEAT_MASK)
 500                     {
 501                       _gtk_css_parser_error (parser, "Not a valid 2nd value for border-repeat");
 502                       return FALSE;
 503                     }
 504                   else
 505                     enum_value |= vertical << GTK_CSS_BACKGROUND_REPEAT_SHIFT;
 506                 }
 507               else
 508                 enum_value |= enum_value << GTK_CSS_BACKGROUND_REPEAT_SHIFT;
 509             }
 510
 511           values[1] = _gtk_css_value_new_from_enum (GTK_TYPE_CSS_BACKGROUND_REPEAT, enum_value);
 512         }
 513       else if ((values[2] == NULL || values[3] == NULL) &&
 514                (values[3] = _gtk_css_area_value_try_parse (parser)))
 515         {
 516           if (values[2] == NULL)
 517             {
 518               values[2] = values[3];
 519               values[3] = NULL;
 520             }
 521         }
 522       else if (values[4] == NULL)
 523         {
 524           GtkSymbolicColor *symbolic;
 525
 526           symbolic = _gtk_css_parser_read_symbolic_color (parser);
 527           if (symbolic == NULL)
 528             return FALSE;
 529
 530           values[4] = _gtk_css_value_new_take_symbolic_color (symbolic);
 531         }
 532       else
 533         {
 534           /* We parsed everything and there's still stuff left?
 535            * Pretend we didn't notice and let the normal code produce
 536            * a 'junk at end of value' error */
 537           break;
 538         }
 539     }
 540   while (!value_is_done_parsing (parser));
 541
 542   return TRUE;
 543 }
 544
 545 /*** PACKING ***/
 546
 547 static void
 548 unpack_border (GtkCssShorthandProperty *shorthand,
 549                GtkStyleProperties      *props,
 550                GtkStateFlags            state,
 551                const GValue            *value)
 552 {
 553   GValue v = G_VALUE_INIT;
 554   GtkBorder *border = g_value_get_boxed (value);
 555
 556   g_value_init (&v, G_TYPE_INT);
 557
 558   g_value_set_int (&v, border->top);
 559   _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 0)), props, state, &v);
 560   g_value_set_int (&v, border->right);
 561   _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 1)), props, state, &v);
 562   g_value_set_int (&v, border->bottom);
 563   _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 2)), props, state, &v);
 564   g_value_set_int (&v, border->left);
 565   _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 3)), props, state, &v);
 566
 567   g_value_unset (&v);
 568 }
 569
 570 static void
 571 pack_border (GtkCssShorthandProperty *shorthand,
 572              GValue                  *value,
 573              GtkStyleQueryFunc        query_func,
 574              gpointer                 query_data)
 575 {
 576   GtkCssStyleProperty *prop;
 577   GtkBorder border;
 578   GtkCssValue *v;
 579
 580   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 0);
 581   v = (* query_func) (_gtk_css_style_property_get_id (prop), query_data);
 582   if (v)
 583     border.top = _gtk_css_value_get_int (v);
 584   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 1);
 585   v = (* query_func) (_gtk_css_style_property_get_id (prop), query_data);
 586   if (v)
 587     border.right = _gtk_css_value_get_int (v);
 588   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 2);
 589   v = (* query_func) (_gtk_css_style_property_get_id (prop), query_data);
 590   if (v)
 591     border.bottom = _gtk_css_value_get_int (v);
 592   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 3);
 593   v = (* query_func) (_gtk_css_style_property_get_id (prop), query_data);
 594   if (v)
 595     border.left = _gtk_css_value_get_int (v);
 596
 597   g_value_init (value, GTK_TYPE_BORDER);
 598   g_value_set_boxed (value, &border);
 599 }
 600
 601 static void
 602 unpack_border_radius (GtkCssShorthandProperty *shorthand,
 603                       GtkStyleProperties      *props,
 604                       GtkStateFlags            state,
 605                       const GValue            *value)
 606 {
 607   GtkCssBorderCornerRadius border;
 608   GValue v = G_VALUE_INIT;
 609   guint i;
 610
 611   _gtk_css_number_init (&border.horizontal, g_value_get_int (value), GTK_CSS_PX);
 612   border.vertical = border.horizontal;
 613   g_value_init (&v, GTK_TYPE_CSS_BORDER_CORNER_RADIUS);
 614   g_value_set_boxed (&v, &border);
 615
 616   for (i = 0; i < 4; i++)
 617     _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, i)), props, state, &v);
 618
 619   g_value_unset (&v);
 620 }
 621
 622 static void
 623 pack_border_radius (GtkCssShorthandProperty *shorthand,
 624                     GValue                  *value,
 625                     GtkStyleQueryFunc        query_func,
 626                     gpointer                 query_data)
 627 {
 628   const GtkCssBorderCornerRadius *top_left;
 629   GtkCssStyleProperty *prop;
 630   GtkCssValue *v;
 631   int i = 0;
 632
 633   prop = GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("border-top-left-radius"));
 634   v = (* query_func) (_gtk_css_style_property_get_id (prop), query_data);
 635   if (v)
 636     {
 637       top_left = _gtk_css_value_get_border_corner_radius (v);
 638       if (top_left)
 639         i = top_left->horizontal.value;
 640     }
 641
 642   g_value_init (value, G_TYPE_INT);
 643   g_value_set_int (value, i);
 644 }
 645
 646 static void
 647 unpack_font_description (GtkCssShorthandProperty *shorthand,
 648                          GtkStyleProperties      *props,
 649                          GtkStateFlags            state,
 650                          const GValue            *value)
 651 {
 652   GtkStyleProperty *prop;
 653   PangoFontDescription *description;
 654   PangoFontMask mask;
 655   GValue v = G_VALUE_INIT;
 656
 657   /* For backwards compat, we only unpack values that are indeed set.
 658    * For strict CSS conformance we need to unpack all of them.
 659    * Note that we do set all of them in the parse function, so it
 660    * will not have effects when parsing CSS files. It will though
 661    * for custom style providers.
 662    */
 663
 664   description = g_value_get_boxed (value);
 665
 666   if (description)
 667     mask = pango_font_description_get_set_fields (description);
 668   else
 669     mask = 0;
 670
 671   if (mask & PANGO_FONT_MASK_FAMILY)
 672     {
 673       GPtrArray *strv = g_ptr_array_new ();
 674
 675       g_ptr_array_add (strv, g_strdup (pango_font_description_get_family (description)));
 676       g_ptr_array_add (strv, NULL);
 677       g_value_init (&v, G_TYPE_STRV);
 678       g_value_take_boxed (&v, g_ptr_array_free (strv, FALSE));
 679
 680       prop = _gtk_style_property_lookup ("font-family");
 681       _gtk_style_property_assign (prop, props, state, &v);
 682       g_value_unset (&v);
 683     }
 684
 685   if (mask & PANGO_FONT_MASK_STYLE)
 686     {
 687       g_value_init (&v, PANGO_TYPE_STYLE);
 688       g_value_set_enum (&v, pango_font_description_get_style (description));
 689
 690       prop = _gtk_style_property_lookup ("font-style");
 691       _gtk_style_property_assign (prop, props, state, &v);
 692       g_value_unset (&v);
 693     }
 694
 695   if (mask & PANGO_FONT_MASK_VARIANT)
 696     {
 697       g_value_init (&v, PANGO_TYPE_VARIANT);
 698       g_value_set_enum (&v, pango_font_description_get_variant (description));
 699
 700       prop = _gtk_style_property_lookup ("font-variant");
 701       _gtk_style_property_assign (prop, props, state, &v);
 702       g_value_unset (&v);
 703     }
 704
 705   if (mask & PANGO_FONT_MASK_WEIGHT)
 706     {
 707       g_value_init (&v, PANGO_TYPE_WEIGHT);
 708       g_value_set_enum (&v, pango_font_description_get_weight (description));
 709
 710       prop = _gtk_style_property_lookup ("font-weight");
 711       _gtk_style_property_assign (prop, props, state, &v);
 712       g_value_unset (&v);
 713     }
 714
 715   if (mask & PANGO_FONT_MASK_SIZE)
 716     {
 717       g_value_init (&v, G_TYPE_DOUBLE);
 718       g_value_set_double (&v, (double) pango_font_description_get_size (description) / PANGO_SCALE);
 719
 720       prop = _gtk_style_property_lookup ("font-size");
 721       _gtk_style_property_assign (prop, props, state, &v);
 722       g_value_unset (&v);
 723     }
 724 }
 725
 726 static void
 727 pack_font_description (GtkCssShorthandProperty *shorthand,
 728                        GValue                  *value,
 729                        GtkStyleQueryFunc        query_func,
 730                        gpointer                 query_data)
 731 {
 732   PangoFontDescription *description;
 733   GtkCssValue *v;
 734
 735   description = pango_font_description_new ();
 736
 737   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-family"))), query_data);
 738   if (v)
 739     {
 740       const char **families = _gtk_css_value_get_strv (v);
 741       /* xxx: Can we set all the families here somehow? */
 742       if (families)
 743         pango_font_description_set_family (description, families[0]);
 744     }
 745
 746   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-size"))), query_data);
 747   if (v)
 748     pango_font_description_set_size (description, round (_gtk_css_value_get_double (v) * PANGO_SCALE));
 749
 750   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-style"))), query_data);
 751   if (v)
 752     pango_font_description_set_style (description, _gtk_css_font_style_value_get (v));
 753
 754   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-variant"))), query_data);
 755   if (v)
 756     pango_font_description_set_variant (description, _gtk_css_font_variant_value_get (v));
 757
 758   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-weight"))), query_data);
 759   if (v)
 760     pango_font_description_set_weight (description, _gtk_css_font_weight_value_get (v));
 761
 762   g_value_init (value, PANGO_TYPE_FONT_DESCRIPTION);
 763   g_value_take_boxed (value, description);
 764 }
 765
 766 static void
 767 unpack_to_everything (GtkCssShorthandProperty *shorthand,
 768                       GtkStyleProperties      *props,
 769                       GtkStateFlags            state,
 770                       const GValue            *value)
 771 {
 772   GtkCssStyleProperty *prop;
 773   guint i, n;
 774
 775   n = _gtk_css_shorthand_property_get_n_subproperties (shorthand);
 776
 777   for (i = 0; i < n; i++)
 778     {
 779       prop = _gtk_css_shorthand_property_get_subproperty (shorthand, i);
 780       _gtk_style_property_assign (GTK_STYLE_PROPERTY (prop), props, state, value);
 781     }
 782 }
 783
 784 static void
 785 pack_first_element (GtkCssShorthandProperty *shorthand,
 786                     GValue                  *value,
 787                     GtkStyleQueryFunc        query_func,
 788                     gpointer                 query_data)
 789 {
 790   GtkCssStyleProperty *prop;
 791
 792   /* NB: This is a fallback for properties that originally were
 793    * not used as shorthand. We just pick the first subproperty
 794    * as a representative.
 795    * Lesson learned: Don't query the shorthand, query the
 796    * real properties instead. */
 797   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 0);
 798   _gtk_style_property_query (GTK_STYLE_PROPERTY (prop),
 799                              value,
 800                              query_func,
 801                              query_data);
 802 }
 803
 804 static void
 805 _gtk_css_shorthand_property_register (const char                        *name,
 806                                       GType                              value_type,
 807                                       const char                       **subproperties,
 808                                       GtkCssShorthandPropertyParseFunc   parse_func,
 809                                       GtkCssShorthandPropertyAssignFunc  assign_func,
 810                                       GtkCssShorthandPropertyQueryFunc   query_func)
 811 {
 812   GtkCssShorthandProperty *node;
 813
 814   node = g_object_new (GTK_TYPE_CSS_SHORTHAND_PROPERTY,
 815                        "name", name,
 816                        "value-type", value_type,
 817                        "subproperties", subproperties,
 818                        NULL);
 819
 820   node->parse = parse_func;
 821   node->assign = assign_func;
 822   node->query = query_func;
 823 }
 824
 825 void
 826 _gtk_css_shorthand_property_init_properties (void)
 827 {
 828   /* The order is important here, be careful when changing it */
 829   const char *font_subproperties[] = { "font-family", "font-style", "font-variant", "font-weight", "font-size", NULL };
 830   const char *margin_subproperties[] = { "margin-top", "margin-right", "margin-bottom", "margin-left", NULL };
 831   const char *padding_subproperties[] = { "padding-top", "padding-right", "padding-bottom", "padding-left", NULL };
 832   const char *border_width_subproperties[] = { "border-top-width", "border-right-width", "border-bottom-width", "border-left-width", NULL };
 833   const char *border_radius_subproperties[] = { "border-top-left-radius", "border-top-right-radius",
 834                                                 "border-bottom-right-radius", "border-bottom-left-radius", NULL };
 835   const char *border_color_subproperties[] = { "border-top-color", "border-right-color", "border-bottom-color", "border-left-color", NULL };
 836   const char *border_style_subproperties[] = { "border-top-style", "border-right-style", "border-bottom-style", "border-left-style", NULL };
 837   const char *border_image_subproperties[] = { "border-image-source", "border-image-slice", "border-image-width", "border-image-repeat", NULL };
 838   const char *border_top_subproperties[] = { "border-top-width", "border-top-style", "border-top-color", NULL };
 839   const char *border_right_subproperties[] = { "border-right-width", "border-right-style", "border-right-color", NULL };
 840   const char *border_bottom_subproperties[] = { "border-bottom-width", "border-bottom-style", "border-bottom-color", NULL };
 841   const char *border_left_subproperties[] = { "border-left-width", "border-left-style", "border-left-color", NULL };
 842   const char *border_subproperties[] = { "border-top-width", "border-right-width", "border-bottom-width", "border-left-width",
 843                                          "border-top-style", "border-right-style", "border-bottom-style", "border-left-style",
 844                                          "border-top-color", "border-right-color", "border-bottom-color", "border-left-color",
 845                                          "border-image-source", "border-image-slice", "border-image-width", "border-image-repeat", NULL };
 846   const char *outline_subproperties[] = { "outline-width", "outline-style", "outline-color", NULL };
 847   const char *background_subproperties[] = { "background-image", "background-repeat", "background-clip", "background-origin",
 848                                              "background-color", NULL };
 849
 850   _gtk_css_shorthand_property_register   ("font",
 851                                           PANGO_TYPE_FONT_DESCRIPTION,
 852                                           font_subproperties,
 853                                           parse_font,
 854                                           unpack_font_description,
 855                                           pack_font_description);
 856   _gtk_css_shorthand_property_register   ("margin",
 857                                           GTK_TYPE_BORDER,
 858                                           margin_subproperties,
 859                                           parse_margin,
 860                                           unpack_border,
 861                                           pack_border);
 862   _gtk_css_shorthand_property_register   ("padding",
 863                                           GTK_TYPE_BORDER,
 864                                           padding_subproperties,
 865                                           parse_padding,
 866                                           unpack_border,
 867                                           pack_border);
 868   _gtk_css_shorthand_property_register   ("border-width",
 869                                           GTK_TYPE_BORDER,
 870                                           border_width_subproperties,
 871                                           parse_border_width,
 872                                           unpack_border,
 873                                           pack_border);
 874   _gtk_css_shorthand_property_register   ("border-radius",
 875                                           G_TYPE_INT,
 876                                           border_radius_subproperties,
 877                                           parse_border_radius,
 878                                           unpack_border_radius,
 879                                           pack_border_radius);
 880   _gtk_css_shorthand_property_register   ("border-color",
 881                                           GDK_TYPE_RGBA,
 882                                           border_color_subproperties,
 883                                           parse_border_color,
 884                                           unpack_to_everything,
 885                                           pack_first_element);
 886   _gtk_css_shorthand_property_register   ("border-style",
 887                                           GTK_TYPE_BORDER_STYLE,
 888                                           border_style_subproperties,
 889                                           parse_border_style,
 890                                           unpack_to_everything,
 891                                           pack_first_element);
 892   _gtk_css_shorthand_property_register   ("border-image",
 893                                           G_TYPE_NONE,
 894                                           border_image_subproperties,
 895                                           parse_border_image,
 896                                           NULL,
 897                                           NULL);
 898   _gtk_css_shorthand_property_register   ("border-top",
 899                                           G_TYPE_NONE,
 900                                           border_top_subproperties,
 901                                           parse_border_side,
 902                                           NULL,
 903                                           NULL);
 904   _gtk_css_shorthand_property_register   ("border-right",
 905                                           G_TYPE_NONE,
 906                                           border_right_subproperties,
 907                                           parse_border_side,
 908                                           NULL,
 909                                           NULL);
 910   _gtk_css_shorthand_property_register   ("border-bottom",
 911                                           G_TYPE_NONE,
 912                                           border_bottom_subproperties,
 913                                           parse_border_side,
 914                                           NULL,
 915                                           NULL);
 916   _gtk_css_shorthand_property_register   ("border-left",
 917                                           G_TYPE_NONE,
 918                                           border_left_subproperties,
 919                                           parse_border_side,
 920                                           NULL,
 921                                           NULL);
 922   _gtk_css_shorthand_property_register   ("border",
 923                                           G_TYPE_NONE,
 924                                           border_subproperties,
 925                                           parse_border,
 926                                           NULL,
 927                                           NULL);
 928   _gtk_css_shorthand_property_register   ("outline",
 929                                           G_TYPE_NONE,
 930                                           outline_subproperties,
 931                                           parse_border_side,
 932                                           NULL,
 933                                           NULL);
 934   _gtk_css_shorthand_property_register   ("background",
 935                                           G_TYPE_NONE,
 936                                           background_subproperties,
 937                                           parse_background,
 938                                           NULL,
 939                                           NULL);
 940 }