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 "gtkcssbordervalueprivate.h"
  29 #include "gtkcsscornervalueprivate.h"
  30 #include "gtkcsseasevalueprivate.h"
  31 #include "gtkcssenumvalueprivate.h"
  32 #include "gtkcssimageprivate.h"
  33 #include "gtkcssimagevalueprivate.h"
  34 #include "gtkcssnumbervalueprivate.h"
  35 #include "gtkcssrepeatvalueprivate.h"
  36 #include "gtkcssstringvalueprivate.h"
  37 #include "gtkcssstylefuncsprivate.h"
  38 #include "gtkcssvalueprivate.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          _gtk_css_parser_begins_with (parser, '}');
  57 }
  58
  59 static gboolean
  60 parse_four_numbers (GtkCssShorthandProperty  *shorthand,
  61                     GtkCssValue             **values,
  62                     GtkCssParser             *parser,
  63                     GtkCssNumberParseFlags    flags)
  64 {
  65   guint i;
  66
  67   for (i = 0; i < 4; i++)
  68     {
  69       if (!_gtk_css_parser_has_number (parser))
  70         break;
  71
  72       values[i] = _gtk_css_number_value_parse (parser, flags);
  73       if (values[i] == NULL)
  74         return FALSE;
  75     }
  76
  77   if (i == 0)
  78     {
  79       _gtk_css_parser_error (parser, "Expected a length");
  80       return FALSE;
  81     }
  82
  83   for (; i < 4; i++)
  84     {
  85       values[i] = _gtk_css_value_ref (values[(i - 1) >> 1]);
  86     }
  87
  88   return TRUE;
  89 }
  90
  91 static gboolean
  92 parse_margin (GtkCssShorthandProperty  *shorthand,
  93               GtkCssValue             **values,
  94               GtkCssParser             *parser,
  95               GFile                    *base)
  96 {
  97   return parse_four_numbers (shorthand,
  98                              values,
  99                              parser,
 100                              GTK_CSS_NUMBER_AS_PIXELS
 101                              | GTK_CSS_PARSE_LENGTH);
 102 }
 103
 104 static gboolean
 105 parse_padding (GtkCssShorthandProperty  *shorthand,
 106                GtkCssValue             **values,
 107                GtkCssParser             *parser,
 108                GFile                    *base)
 109 {
 110   return parse_four_numbers (shorthand,
 111                              values,
 112                              parser,
 113                              GTK_CSS_POSITIVE_ONLY
 114                              | GTK_CSS_NUMBER_AS_PIXELS
 115                              | GTK_CSS_PARSE_LENGTH);
 116 }
 117
 118 static gboolean
 119 parse_border_width (GtkCssShorthandProperty  *shorthand,
 120                     GtkCssValue             **values,
 121                     GtkCssParser             *parser,
 122                     GFile                    *base)
 123 {
 124   return parse_four_numbers (shorthand,
 125                              values,
 126                              parser,
 127                              GTK_CSS_POSITIVE_ONLY
 128                              | GTK_CSS_NUMBER_AS_PIXELS
 129                              | GTK_CSS_PARSE_LENGTH);
 130 }
 131
 132 static gboolean
 133 parse_border_radius (GtkCssShorthandProperty  *shorthand,
 134                      GtkCssValue             **values,
 135                      GtkCssParser             *parser,
 136                      GFile                    *base)
 137 {
 138   GtkCssValue *x[4] = { NULL, }, *y[4] = { NULL, };
 139   guint i;
 140
 141   for (i = 0; i < 4; i++)
 142     {
 143       if (!_gtk_css_parser_has_number (parser))
 144         break;
 145       x[i] = _gtk_css_number_value_parse (parser,
 146                                           GTK_CSS_POSITIVE_ONLY
 147                                           | GTK_CSS_PARSE_PERCENT
 148                                           | GTK_CSS_NUMBER_AS_PIXELS
 149                                           | GTK_CSS_PARSE_LENGTH);
 150       if (x[i] == NULL)
 151         goto fail;
 152     }
 153
 154   if (i == 0)
 155     {
 156       _gtk_css_parser_error (parser, "Expected a number");
 157       goto fail;
 158     }
 159
 160   /* The magic (i - 1) >> 1 below makes it take the correct value
 161    * according to spec. Feel free to check the 4 cases */
 162   for (; i < 4; i++)
 163     x[i] = _gtk_css_value_ref (x[(i - 1) >> 1]);
 164
 165   if (_gtk_css_parser_try (parser, "/", TRUE))
 166     {
 167       for (i = 0; i < 4; i++)
 168         {
 169           if (!_gtk_css_parser_has_number (parser))
 170             break;
 171           y[i] = _gtk_css_number_value_parse (parser,
 172                                               GTK_CSS_POSITIVE_ONLY
 173                                               | GTK_CSS_PARSE_PERCENT
 174                                               | GTK_CSS_NUMBER_AS_PIXELS
 175                                               | GTK_CSS_PARSE_LENGTH);
 176           if (y[i] == NULL)
 177             goto fail;
 178         }
 179
 180       if (i == 0)
 181         {
 182           _gtk_css_parser_error (parser, "Expected a number");
 183           goto fail;
 184         }
 185
 186       for (; i < 4; i++)
 187         y[i] = _gtk_css_value_ref (y[(i - 1) >> 1]);
 188     }
 189   else
 190     {
 191       for (i = 0; i < 4; i++)
 192         y[i] = _gtk_css_value_ref (x[i]);
 193     }
 194
 195   for (i = 0; i < 4; i++)
 196     {
 197       values[i] = _gtk_css_corner_value_new (x[i], y[i]);
 198     }
 199
 200   return TRUE;
 201
 202 fail:
 203   for (i = 0; i < 4; i++)
 204     {
 205       if (x[i])
 206         _gtk_css_value_unref (x[i]);
 207       if (y[i])
 208         _gtk_css_value_unref (y[i]);
 209     }
 210   return FALSE;
 211 }
 212
 213 static gboolean
 214 parse_border_color (GtkCssShorthandProperty  *shorthand,
 215                     GtkCssValue             **values,
 216                     GtkCssParser             *parser,
 217                     GFile                    *base)
 218 {
 219   guint i;
 220
 221   for (i = 0; i < 4; i++)
 222     {
 223       values[i] = _gtk_css_symbolic_value_new (parser);
 224       if (values[i] == NULL)
 225         return FALSE;
 226
 227       if (value_is_done_parsing (parser))
 228         break;
 229     }
 230
 231   for (i++; i < 4; i++)
 232     {
 233       values[i] = _gtk_css_value_ref (values[(i - 1) >> 1]);
 234     }
 235
 236   return TRUE;
 237 }
 238
 239 static gboolean
 240 parse_border_style (GtkCssShorthandProperty  *shorthand,
 241                     GtkCssValue             **values,
 242                     GtkCssParser             *parser,
 243                     GFile                    *base)
 244 {
 245   guint i;
 246
 247   for (i = 0; i < 4; i++)
 248     {
 249       values[i] = _gtk_css_border_style_value_try_parse (parser);
 250       if (values[i] == NULL)
 251         break;
 252     }
 253
 254   if (i == 0)
 255     {
 256       _gtk_css_parser_error (parser, "Expected a border style");
 257       return FALSE;
 258     }
 259
 260   for (; i < 4; i++)
 261     values[i] = _gtk_css_value_ref (values[(i - 1) >> 1]);
 262
 263   return TRUE;
 264 }
 265
 266 static gboolean
 267 parse_border_image (GtkCssShorthandProperty  *shorthand,
 268                     GtkCssValue             **values,
 269                     GtkCssParser             *parser,
 270                     GFile                    *base)
 271 {
 272   do
 273     {
 274       if (values[0] == NULL &&
 275           (_gtk_css_parser_has_prefix (parser, "none") ||
 276            _gtk_css_image_can_parse (parser)))
 277         {
 278           GtkCssImage *image;
 279
 280           if (_gtk_css_parser_try (parser, "none", TRUE))
 281             image = NULL;
 282           else
 283             {
 284               image = _gtk_css_image_new_parse (parser, base);
 285               if (image == NULL)
 286                 return FALSE;
 287             }
 288
 289           values[0] = _gtk_css_image_value_new (image);
 290         }
 291       else if (values[3] == NULL &&
 292                (values[3] = _gtk_css_border_repeat_value_try_parse (parser)))
 293         {
 294           /* please move along */
 295         }
 296       else if (values[1] == NULL)
 297         {
 298           values[1] = _gtk_css_border_value_parse (parser,
 299                                                    GTK_CSS_PARSE_PERCENT
 300                                                    | GTK_CSS_PARSE_NUMBER
 301                                                    | GTK_CSS_POSITIVE_ONLY,
 302                                                    FALSE,
 303                                                    TRUE);
 304           if (values[1] == NULL)
 305             return FALSE;
 306
 307           if (_gtk_css_parser_try (parser, "/", TRUE))
 308             {
 309               values[2] = _gtk_css_border_value_parse (parser,
 310                                                        GTK_CSS_PARSE_PERCENT
 311                                                        | GTK_CSS_PARSE_LENGTH
 312                                                        | GTK_CSS_PARSE_NUMBER
 313                                                        | GTK_CSS_POSITIVE_ONLY,
 314                                                        TRUE,
 315                                                        FALSE);
 316               if (values[2] == NULL)
 317                 return FALSE;
 318             }
 319         }
 320       else
 321         {
 322           /* We parsed everything and there's still stuff left?
 323            * Pretend we didn't notice and let the normal code produce
 324            * a 'junk at end of value' error */
 325           break;
 326         }
 327     }
 328   while (!value_is_done_parsing (parser));
 329
 330   return TRUE;
 331 }
 332
 333 static gboolean
 334 parse_border_side (GtkCssShorthandProperty  *shorthand,
 335                    GtkCssValue             **values,
 336                    GtkCssParser             *parser,
 337                    GFile                    *base)
 338 {
 339   do
 340   {
 341     if (values[0] == NULL &&
 342          _gtk_css_parser_has_number (parser))
 343       {
 344         values[0] = _gtk_css_number_value_parse (parser,
 345                                                  GTK_CSS_POSITIVE_ONLY
 346                                                  | GTK_CSS_NUMBER_AS_PIXELS
 347                                                  | GTK_CSS_PARSE_LENGTH);
 348         if (values[0] == NULL)
 349           return FALSE;
 350       }
 351     else if (values[1] == NULL &&
 352              (values[1] = _gtk_css_border_style_value_try_parse (parser)))
 353       {
 354         /* Nothing to do */
 355       }
 356     else if (values[2] == NULL)
 357       {
 358         values[2] = _gtk_css_symbolic_value_new (parser);
 359         if (values[2] == NULL)
 360           return FALSE;
 361       }
 362   }
 363   while (!value_is_done_parsing (parser));
 364
 365   return TRUE;
 366 }
 367
 368 static gboolean
 369 parse_border (GtkCssShorthandProperty  *shorthand,
 370               GtkCssValue             **values,
 371               GtkCssParser             *parser,
 372               GFile                    *base)
 373 {
 374   do
 375   {
 376     if (values[0] == NULL &&
 377          _gtk_css_parser_has_number (parser))
 378       {
 379         values[0] = _gtk_css_number_value_parse (parser,
 380                                                  GTK_CSS_POSITIVE_ONLY
 381                                                  | GTK_CSS_NUMBER_AS_PIXELS
 382                                                  | GTK_CSS_PARSE_LENGTH);
 383         if (values[0] == NULL)
 384           return FALSE;
 385         values[1] = _gtk_css_value_ref (values[0]);
 386         values[2] = _gtk_css_value_ref (values[0]);
 387         values[3] = _gtk_css_value_ref (values[0]);
 388       }
 389     else if (values[4] == NULL &&
 390              (values[4] = _gtk_css_border_style_value_try_parse (parser)))
 391       {
 392         values[5] = _gtk_css_value_ref (values[4]);
 393         values[6] = _gtk_css_value_ref (values[4]);
 394         values[7] = _gtk_css_value_ref (values[4]);
 395       }
 396     else if (!G_IS_VALUE (&values[8]))
 397       {
 398         values[8] = _gtk_css_symbolic_value_new (parser);
 399         if (values[8] == NULL)
 400           return FALSE;
 401
 402         values[9] = _gtk_css_value_ref (values[8]);
 403         values[10] = _gtk_css_value_ref (values[8]);
 404         values[11] = _gtk_css_value_ref (values[8]);
 405       }
 406     else
 407       {
 408         /* We parsed everything and there's still stuff left?
 409          * Pretend we didn't notice and let the normal code produce
 410          * a 'junk at end of value' error */
 411         break;
 412       }
 413   }
 414   while (!value_is_done_parsing (parser));
 415
 416   /* Note that border-image values are not set: according to the spec
 417      they just need to be reset when using the border shorthand */
 418
 419   return TRUE;
 420 }
 421
 422 static gboolean
 423 parse_font (GtkCssShorthandProperty  *shorthand,
 424             GtkCssValue             **values,
 425             GtkCssParser             *parser,
 426             GFile                    *base)
 427 {
 428   PangoFontDescription *desc;
 429   guint mask;
 430   char *str;
 431
 432   str = _gtk_css_parser_read_value (parser);
 433   if (str == NULL)
 434     return FALSE;
 435
 436   desc = pango_font_description_from_string (str);
 437   g_free (str);
 438
 439   mask = pango_font_description_get_set_fields (desc);
 440
 441   if (mask & PANGO_FONT_MASK_FAMILY)
 442     {
 443       values[0] = _gtk_css_array_value_new (_gtk_css_string_value_new (pango_font_description_get_family (desc)));
 444     }
 445   if (mask & PANGO_FONT_MASK_STYLE)
 446     {
 447       values[1] = _gtk_css_font_style_value_new (pango_font_description_get_style (desc));
 448     }
 449   if (mask & PANGO_FONT_MASK_VARIANT)
 450     {
 451       values[2] = _gtk_css_font_variant_value_new (pango_font_description_get_variant (desc));
 452     }
 453   if (mask & PANGO_FONT_MASK_WEIGHT)
 454     {
 455       values[3] = _gtk_css_font_weight_value_new (pango_font_description_get_weight (desc));
 456     }
 457   if (mask & PANGO_FONT_MASK_SIZE)
 458     {
 459       values[4] = _gtk_css_number_value_new ((double) pango_font_description_get_size (desc) / PANGO_SCALE, GTK_CSS_PX);
 460     }
 461
 462   pango_font_description_free (desc);
 463
 464   return TRUE;
 465 }
 466
 467 static gboolean
 468 parse_background (GtkCssShorthandProperty  *shorthand,
 469                   GtkCssValue             **values,
 470                   GtkCssParser             *parser,
 471                   GFile                    *base)
 472 {
 473   do
 474     {
 475       /* the image part */
 476       if (values[0] == NULL &&
 477           (_gtk_css_parser_has_prefix (parser, "none") ||
 478            _gtk_css_image_can_parse (parser)))
 479         {
 480           GtkCssImage *image;
 481
 482           if (_gtk_css_parser_try (parser, "none", TRUE))
 483             image = NULL;
 484           else
 485             {
 486               image = _gtk_css_image_new_parse (parser, base);
 487               if (image == NULL)
 488                 return FALSE;
 489             }
 490
 491           values[0] = _gtk_css_image_value_new (image);
 492         }
 493       else if (values[1] == NULL &&
 494                (values[1] = _gtk_css_background_repeat_value_try_parse (parser)))
 495         {
 496           /* nothing to do here */
 497         }
 498       else if ((values[2] == NULL || values[3] == NULL) &&
 499                (values[3] = _gtk_css_area_value_try_parse (parser)))
 500         {
 501           if (values[2] == NULL)
 502             {
 503               values[2] = values[3];
 504               values[3] = NULL;
 505             }
 506         }
 507       else if (values[4] == NULL)
 508         {
 509           values[4] = _gtk_css_symbolic_value_new (parser);
 510           if (values[4] == NULL)
 511             return FALSE;
 512         }
 513       else
 514         {
 515           /* We parsed everything and there's still stuff left?
 516            * Pretend we didn't notice and let the normal code produce
 517            * a 'junk at end of value' error */
 518           break;
 519         }
 520     }
 521   while (!value_is_done_parsing (parser));
 522
 523   return TRUE;
 524 }
 525
 526 static gboolean
 527 parse_one_transition (GtkCssShorthandProperty  *shorthand,
 528                       GtkCssValue             **values,
 529                       GtkCssParser             *parser,
 530                       GFile                    *base)
 531 {
 532   do
 533     {
 534       /* the image part */
 535       if (values[2] == NULL &&
 536           _gtk_css_parser_has_number (parser) && !_gtk_css_parser_begins_with (parser, '-'))
 537         {
 538           GtkCssValue *number = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_TIME);
 539
 540           if (number == NULL)
 541             return FALSE;
 542
 543           if (values[1] == NULL)
 544             values[1] = number;
 545           else
 546             values[2] = number;
 547         }
 548       else if (values[3] == NULL &&
 549                _gtk_css_ease_value_can_parse (parser))
 550         {
 551           values[3] = _gtk_css_ease_value_parse (parser);
 552
 553           if (values[3] == NULL)
 554             return FALSE;
 555         }
 556       else if (values[0] == NULL)
 557         {
 558           values[0] = _gtk_css_ident_value_try_parse (parser);
 559           if (values[0] == NULL)
 560             {
 561               _gtk_css_parser_error (parser, "Unknown value for property");
 562               return FALSE;
 563             }
 564
 565         }
 566       else
 567         {
 568           /* We parsed everything and there's still stuff left?
 569            * Pretend we didn't notice and let the normal code produce
 570            * a 'junk at end of value' error */
 571           break;
 572         }
 573     }
 574   while (!value_is_done_parsing (parser));
 575
 576   return TRUE;
 577 }
 578
 579 static gboolean
 580 parse_transition (GtkCssShorthandProperty  *shorthand,
 581                   GtkCssValue             **values,
 582                   GtkCssParser             *parser,
 583                   GFile                    *base)
 584 {
 585   GtkCssValue *step_values[4];
 586   GPtrArray *arrays[4];
 587   guint i;
 588
 589   for (i = 0; i < 4; i++)
 590     {
 591       arrays[i] = g_ptr_array_new ();
 592       step_values[i] = NULL;
 593     }
 594
 595   do {
 596     if (!parse_one_transition (shorthand, step_values, parser, base))
 597       {
 598         for (i = 0; i < 4; i++)
 599           {
 600             g_ptr_array_set_free_func (arrays[i], (GDestroyNotify) _gtk_css_value_unref);
 601             g_ptr_array_unref (arrays[i]);
 602             return FALSE;
 603           }
 604       }
 605
 606       for (i = 0; i < 4; i++)
 607         {
 608           if (step_values[i] == NULL)
 609             {
 610               GtkCssValue *initial = _gtk_css_style_property_get_initial_value (
 611                                          _gtk_css_shorthand_property_get_subproperty (shorthand, i));
 612               step_values[i] = _gtk_css_value_ref (_gtk_css_array_value_get_nth (initial, 0));
 613             }
 614
 615           g_ptr_array_add (arrays[i], step_values[i]);
 616           step_values[i] = NULL;
 617         }
 618   } while (_gtk_css_parser_try (parser, ",", TRUE));
 619
 620   for (i = 0; i < 4; i++)
 621     {
 622       values[i] = _gtk_css_array_value_new_from_array ((GtkCssValue **) arrays[i]->pdata, arrays[i]->len);
 623       g_ptr_array_unref (arrays[i]);
 624     }
 625
 626   return TRUE;
 627 }
 628
 629 /*** PACKING ***/
 630
 631 static void
 632 unpack_border (GtkCssShorthandProperty *shorthand,
 633                GtkStyleProperties      *props,
 634                GtkStateFlags            state,
 635                const GValue            *value)
 636 {
 637   GValue v = G_VALUE_INIT;
 638   GtkBorder *border = g_value_get_boxed (value);
 639
 640   g_value_init (&v, G_TYPE_INT);
 641
 642   g_value_set_int (&v, border->top);
 643   _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 0)), props, state, &v);
 644   g_value_set_int (&v, border->right);
 645   _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 1)), props, state, &v);
 646   g_value_set_int (&v, border->bottom);
 647   _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 2)), props, state, &v);
 648   g_value_set_int (&v, border->left);
 649   _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 3)), props, state, &v);
 650
 651   g_value_unset (&v);
 652 }
 653
 654 static void
 655 pack_border (GtkCssShorthandProperty *shorthand,
 656              GValue                  *value,
 657              GtkStyleQueryFunc        query_func,
 658              gpointer                 query_data)
 659 {
 660   GtkCssStyleProperty *prop;
 661   GtkBorder border;
 662   GtkCssValue *v;
 663
 664   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 0);
 665   v = (* query_func) (_gtk_css_style_property_get_id (prop), query_data);
 666   if (v)
 667     border.top = _gtk_css_value_get_int (v);
 668   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 1);
 669   v = (* query_func) (_gtk_css_style_property_get_id (prop), query_data);
 670   if (v)
 671     border.right = _gtk_css_value_get_int (v);
 672   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 2);
 673   v = (* query_func) (_gtk_css_style_property_get_id (prop), query_data);
 674   if (v)
 675     border.bottom = _gtk_css_value_get_int (v);
 676   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 3);
 677   v = (* query_func) (_gtk_css_style_property_get_id (prop), query_data);
 678   if (v)
 679     border.left = _gtk_css_value_get_int (v);
 680
 681   g_value_init (value, GTK_TYPE_BORDER);
 682   g_value_set_boxed (value, &border);
 683 }
 684
 685 static void
 686 unpack_border_radius (GtkCssShorthandProperty *shorthand,
 687                       GtkStyleProperties      *props,
 688                       GtkStateFlags            state,
 689                       const GValue            *value)
 690 {
 691   GtkCssValue *css_value;
 692   guint i;
 693
 694   css_value = _gtk_css_corner_value_new (_gtk_css_number_value_new (g_value_get_int (value), GTK_CSS_PX),
 695                                          _gtk_css_number_value_new (g_value_get_int (value), GTK_CSS_PX));
 696
 697   for (i = 0; i < 4; i++)
 698     _gtk_style_properties_set_property_by_property (props,
 699                                                     _gtk_css_shorthand_property_get_subproperty (shorthand, i),
 700                                                     state,
 701                                                     css_value);
 702
 703   _gtk_css_value_unref (css_value);
 704 }
 705
 706 static void
 707 pack_border_radius (GtkCssShorthandProperty *shorthand,
 708                     GValue                  *value,
 709                     GtkStyleQueryFunc        query_func,
 710                     gpointer                 query_data)
 711 {
 712   GtkCssStyleProperty *prop;
 713   GtkCssValue *v;
 714   int i = 0;
 715
 716   prop = GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("border-top-left-radius"));
 717   v = (* query_func) (_gtk_css_style_property_get_id (prop), query_data);
 718   if (v)
 719     i = _gtk_css_corner_value_get_x (v, 100);
 720
 721   g_value_init (value, G_TYPE_INT);
 722   g_value_set_int (value, i);
 723 }
 724
 725 static void
 726 unpack_font_description (GtkCssShorthandProperty *shorthand,
 727                          GtkStyleProperties      *props,
 728                          GtkStateFlags            state,
 729                          const GValue            *value)
 730 {
 731   GtkStyleProperty *prop;
 732   PangoFontDescription *description;
 733   PangoFontMask mask;
 734   GValue v = G_VALUE_INIT;
 735
 736   /* For backwards compat, we only unpack values that are indeed set.
 737    * For strict CSS conformance we need to unpack all of them.
 738    * Note that we do set all of them in the parse function, so it
 739    * will not have effects when parsing CSS files. It will though
 740    * for custom style providers.
 741    */
 742
 743   description = g_value_get_boxed (value);
 744
 745   if (description)
 746     mask = pango_font_description_get_set_fields (description);
 747   else
 748     mask = 0;
 749
 750   if (mask & PANGO_FONT_MASK_FAMILY)
 751     {
 752       GPtrArray *strv = g_ptr_array_new ();
 753
 754       g_ptr_array_add (strv, g_strdup (pango_font_description_get_family (description)));
 755       g_ptr_array_add (strv, NULL);
 756       g_value_init (&v, G_TYPE_STRV);
 757       g_value_take_boxed (&v, g_ptr_array_free (strv, FALSE));
 758
 759       prop = _gtk_style_property_lookup ("font-family");
 760       _gtk_style_property_assign (prop, props, state, &v);
 761       g_value_unset (&v);
 762     }
 763
 764   if (mask & PANGO_FONT_MASK_STYLE)
 765     {
 766       g_value_init (&v, PANGO_TYPE_STYLE);
 767       g_value_set_enum (&v, pango_font_description_get_style (description));
 768
 769       prop = _gtk_style_property_lookup ("font-style");
 770       _gtk_style_property_assign (prop, props, state, &v);
 771       g_value_unset (&v);
 772     }
 773
 774   if (mask & PANGO_FONT_MASK_VARIANT)
 775     {
 776       g_value_init (&v, PANGO_TYPE_VARIANT);
 777       g_value_set_enum (&v, pango_font_description_get_variant (description));
 778
 779       prop = _gtk_style_property_lookup ("font-variant");
 780       _gtk_style_property_assign (prop, props, state, &v);
 781       g_value_unset (&v);
 782     }
 783
 784   if (mask & PANGO_FONT_MASK_WEIGHT)
 785     {
 786       g_value_init (&v, PANGO_TYPE_WEIGHT);
 787       g_value_set_enum (&v, pango_font_description_get_weight (description));
 788
 789       prop = _gtk_style_property_lookup ("font-weight");
 790       _gtk_style_property_assign (prop, props, state, &v);
 791       g_value_unset (&v);
 792     }
 793
 794   if (mask & PANGO_FONT_MASK_SIZE)
 795     {
 796       g_value_init (&v, G_TYPE_DOUBLE);
 797       g_value_set_double (&v, (double) pango_font_description_get_size (description) / PANGO_SCALE);
 798
 799       prop = _gtk_style_property_lookup ("font-size");
 800       _gtk_style_property_assign (prop, props, state, &v);
 801       g_value_unset (&v);
 802     }
 803 }
 804
 805 static void
 806 pack_font_description (GtkCssShorthandProperty *shorthand,
 807                        GValue                  *value,
 808                        GtkStyleQueryFunc        query_func,
 809                        gpointer                 query_data)
 810 {
 811   PangoFontDescription *description;
 812   GtkCssValue *v;
 813
 814   description = pango_font_description_new ();
 815
 816   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-family"))), query_data);
 817   if (v)
 818     {
 819       /* xxx: Can we set all the families here somehow? */
 820       pango_font_description_set_family (description, _gtk_css_string_value_get (_gtk_css_array_value_get_nth (v, 0)));
 821     }
 822
 823   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-size"))), query_data);
 824   if (v)
 825     pango_font_description_set_size (description, round (_gtk_css_number_value_get (v, 100) * PANGO_SCALE));
 826
 827   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-style"))), query_data);
 828   if (v)
 829     pango_font_description_set_style (description, _gtk_css_font_style_value_get (v));
 830
 831   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-variant"))), query_data);
 832   if (v)
 833     pango_font_description_set_variant (description, _gtk_css_font_variant_value_get (v));
 834
 835   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-weight"))), query_data);
 836   if (v)
 837     pango_font_description_set_weight (description, _gtk_css_font_weight_value_get (v));
 838
 839   g_value_init (value, PANGO_TYPE_FONT_DESCRIPTION);
 840   g_value_take_boxed (value, description);
 841 }
 842
 843 static void
 844 unpack_to_everything (GtkCssShorthandProperty *shorthand,
 845                       GtkStyleProperties      *props,
 846                       GtkStateFlags            state,
 847                       const GValue            *value)
 848 {
 849   GtkCssStyleProperty *prop;
 850   guint i, n;
 851
 852   n = _gtk_css_shorthand_property_get_n_subproperties (shorthand);
 853
 854   for (i = 0; i < n; i++)
 855     {
 856       prop = _gtk_css_shorthand_property_get_subproperty (shorthand, i);
 857       _gtk_style_property_assign (GTK_STYLE_PROPERTY (prop), props, state, value);
 858     }
 859 }
 860
 861 static void
 862 pack_first_element (GtkCssShorthandProperty *shorthand,
 863                     GValue                  *value,
 864                     GtkStyleQueryFunc        query_func,
 865                     gpointer                 query_data)
 866 {
 867   GtkCssStyleProperty *prop;
 868
 869   /* NB: This is a fallback for properties that originally were
 870    * not used as shorthand. We just pick the first subproperty
 871    * as a representative.
 872    * Lesson learned: Don't query the shorthand, query the
 873    * real properties instead. */
 874   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 0);
 875   _gtk_style_property_query (GTK_STYLE_PROPERTY (prop),
 876                              value,
 877                              query_func,
 878                              query_data);
 879 }
 880
 881 static void
 882 _gtk_css_shorthand_property_register (const char                        *name,
 883                                       GType                              value_type,
 884                                       const char                       **subproperties,
 885                                       GtkCssShorthandPropertyParseFunc   parse_func,
 886                                       GtkCssShorthandPropertyAssignFunc  assign_func,
 887                                       GtkCssShorthandPropertyQueryFunc   query_func)
 888 {
 889   GtkCssShorthandProperty *node;
 890
 891   node = g_object_new (GTK_TYPE_CSS_SHORTHAND_PROPERTY,
 892                        "name", name,
 893                        "value-type", value_type,
 894                        "subproperties", subproperties,
 895                        NULL);
 896
 897   node->parse = parse_func;
 898   node->assign = assign_func;
 899   node->query = query_func;
 900 }
 901
 902 void
 903 _gtk_css_shorthand_property_init_properties (void)
 904 {
 905   /* The order is important here, be careful when changing it */
 906   const char *font_subproperties[] = { "font-family", "font-style", "font-variant", "font-weight", "font-size", NULL };
 907   const char *margin_subproperties[] = { "margin-top", "margin-right", "margin-bottom", "margin-left", NULL };
 908   const char *padding_subproperties[] = { "padding-top", "padding-right", "padding-bottom", "padding-left", NULL };
 909   const char *border_width_subproperties[] = { "border-top-width", "border-right-width", "border-bottom-width", "border-left-width", NULL };
 910   const char *border_radius_subproperties[] = { "border-top-left-radius", "border-top-right-radius",
 911                                                 "border-bottom-right-radius", "border-bottom-left-radius", NULL };
 912   const char *border_color_subproperties[] = { "border-top-color", "border-right-color", "border-bottom-color", "border-left-color", NULL };
 913   const char *border_style_subproperties[] = { "border-top-style", "border-right-style", "border-bottom-style", "border-left-style", NULL };
 914   const char *border_image_subproperties[] = { "border-image-source", "border-image-slice", "border-image-width", "border-image-repeat", NULL };
 915   const char *border_top_subproperties[] = { "border-top-width", "border-top-style", "border-top-color", NULL };
 916   const char *border_right_subproperties[] = { "border-right-width", "border-right-style", "border-right-color", NULL };
 917   const char *border_bottom_subproperties[] = { "border-bottom-width", "border-bottom-style", "border-bottom-color", NULL };
 918   const char *border_left_subproperties[] = { "border-left-width", "border-left-style", "border-left-color", NULL };
 919   const char *border_subproperties[] = { "border-top-width", "border-right-width", "border-bottom-width", "border-left-width",
 920                                          "border-top-style", "border-right-style", "border-bottom-style", "border-left-style",
 921                                          "border-top-color", "border-right-color", "border-bottom-color", "border-left-color",
 922                                          "border-image-source", "border-image-slice", "border-image-width", "border-image-repeat", NULL };
 923   const char *outline_subproperties[] = { "outline-width", "outline-style", "outline-color", NULL };
 924   const char *background_subproperties[] = { "background-image", "background-repeat", "background-clip", "background-origin",
 925                                              "background-color", NULL };
 926   const char *transition_subproperties[] = { "transition-property", "transition-duration", "transition-delay", "transition-timing-function", NULL };
 927
 928   _gtk_css_shorthand_property_register   ("font",
 929                                           PANGO_TYPE_FONT_DESCRIPTION,
 930                                           font_subproperties,
 931                                           parse_font,
 932                                           unpack_font_description,
 933                                           pack_font_description);
 934   _gtk_css_shorthand_property_register   ("margin",
 935                                           GTK_TYPE_BORDER,
 936                                           margin_subproperties,
 937                                           parse_margin,
 938                                           unpack_border,
 939                                           pack_border);
 940   _gtk_css_shorthand_property_register   ("padding",
 941                                           GTK_TYPE_BORDER,
 942                                           padding_subproperties,
 943                                           parse_padding,
 944                                           unpack_border,
 945                                           pack_border);
 946   _gtk_css_shorthand_property_register   ("border-width",
 947                                           GTK_TYPE_BORDER,
 948                                           border_width_subproperties,
 949                                           parse_border_width,
 950                                           unpack_border,
 951                                           pack_border);
 952   _gtk_css_shorthand_property_register   ("border-radius",
 953                                           G_TYPE_INT,
 954                                           border_radius_subproperties,
 955                                           parse_border_radius,
 956                                           unpack_border_radius,
 957                                           pack_border_radius);
 958   _gtk_css_shorthand_property_register   ("border-color",
 959                                           GDK_TYPE_RGBA,
 960                                           border_color_subproperties,
 961                                           parse_border_color,
 962                                           unpack_to_everything,
 963                                           pack_first_element);
 964   _gtk_css_shorthand_property_register   ("border-style",
 965                                           GTK_TYPE_BORDER_STYLE,
 966                                           border_style_subproperties,
 967                                           parse_border_style,
 968                                           unpack_to_everything,
 969                                           pack_first_element);
 970   _gtk_css_shorthand_property_register   ("border-image",
 971                                           G_TYPE_NONE,
 972                                           border_image_subproperties,
 973                                           parse_border_image,
 974                                           NULL,
 975                                           NULL);
 976   _gtk_css_shorthand_property_register   ("border-top",
 977                                           G_TYPE_NONE,
 978                                           border_top_subproperties,
 979                                           parse_border_side,
 980                                           NULL,
 981                                           NULL);
 982   _gtk_css_shorthand_property_register   ("border-right",
 983                                           G_TYPE_NONE,
 984                                           border_right_subproperties,
 985                                           parse_border_side,
 986                                           NULL,
 987                                           NULL);
 988   _gtk_css_shorthand_property_register   ("border-bottom",
 989                                           G_TYPE_NONE,
 990                                           border_bottom_subproperties,
 991                                           parse_border_side,
 992                                           NULL,
 993                                           NULL);
 994   _gtk_css_shorthand_property_register   ("border-left",
 995                                           G_TYPE_NONE,
 996                                           border_left_subproperties,
 997                                           parse_border_side,
 998                                           NULL,
 999                                           NULL);
1000   _gtk_css_shorthand_property_register   ("border",
1001                                           G_TYPE_NONE,
1002                                           border_subproperties,
1003                                           parse_border,
1004                                           NULL,
1005                                           NULL);
1006   _gtk_css_shorthand_property_register   ("outline",
1007                                           G_TYPE_NONE,
1008                                           outline_subproperties,
1009                                           parse_border_side,
1010                                           NULL,
1011                                           NULL);
1012   _gtk_css_shorthand_property_register   ("background",
1013                                           G_TYPE_NONE,
1014                                           background_subproperties,
1015                                           parse_background,
1016                                           NULL,
1017                                           NULL);
1018   _gtk_css_shorthand_property_register   ("transition",
1019                                           G_TYPE_NONE,
1020                                           transition_subproperties,
1021                                           parse_transition,
1022                                           NULL,
1023                                           NULL);
1024 }