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