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 "gtkcssbgsizevalueprivate.h"
  29 #include "gtkcssbordervalueprivate.h"
  30 #include "gtkcsscornervalueprivate.h"
  31 #include "gtkcsseasevalueprivate.h"
  32 #include "gtkcssenumvalueprivate.h"
  33 #include "gtkcssimageprivate.h"
  34 #include "gtkcssimagevalueprivate.h"
  35 #include "gtkcssnumbervalueprivate.h"
  36 #include "gtkcsspositionvalueprivate.h"
  37 #include "gtkcssrepeatvalueprivate.h"
  38 #include "gtkcssstringvalueprivate.h"
  39 #include "gtkcssstylefuncsprivate.h"
  40 #include "gtkcssvalueprivate.h"
  41 #include "gtkstylepropertiesprivate.h"
  42 #include "gtksymboliccolorprivate.h"
  43 #include "gtktypebuiltins.h"
  44
  45 /* this is in case round() is not provided by the compiler,
  46  * such as in the case of C89 compilers, like MSVC
  47  */
  48 #include "fallback-c89.c"
  49
  50 /*** PARSING ***/
  51
  52 static gboolean
  53 value_is_done_parsing (GtkCssParser *parser)
  54 {
  55   return _gtk_css_parser_is_eof (parser) ||
  56          _gtk_css_parser_begins_with (parser, ',') ||
  57          _gtk_css_parser_begins_with (parser, ';') ||
  58          _gtk_css_parser_begins_with (parser, '}');
  59 }
  60
  61 static gboolean
  62 parse_four_numbers (GtkCssShorthandProperty  *shorthand,
  63                     GtkCssValue             **values,
  64                     GtkCssParser             *parser,
  65                     GtkCssNumberParseFlags    flags)
  66 {
  67   guint i;
  68
  69   for (i = 0; i < 4; i++)
  70     {
  71       if (!_gtk_css_parser_has_number (parser))
  72         break;
  73
  74       values[i] = _gtk_css_number_value_parse (parser, flags);
  75       if (values[i] == NULL)
  76         return FALSE;
  77     }
  78
  79   if (i == 0)
  80     {
  81       _gtk_css_parser_error (parser, "Expected a length");
  82       return FALSE;
  83     }
  84
  85   for (; i < 4; i++)
  86     {
  87       values[i] = _gtk_css_value_ref (values[(i - 1) >> 1]);
  88     }
  89
  90   return TRUE;
  91 }
  92
  93 static gboolean
  94 parse_margin (GtkCssShorthandProperty  *shorthand,
  95               GtkCssValue             **values,
  96               GtkCssParser             *parser)
  97 {
  98   return parse_four_numbers (shorthand,
  99                              values,
 100                              parser,
 101                              GTK_CSS_NUMBER_AS_PIXELS
 102                              | GTK_CSS_PARSE_LENGTH);
 103 }
 104
 105 static gboolean
 106 parse_padding (GtkCssShorthandProperty  *shorthand,
 107                GtkCssValue             **values,
 108                GtkCssParser             *parser)
 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 {
 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 {
 136   GtkCssValue *x[4] = { NULL, }, *y[4] = { NULL, };
 137   guint i;
 138
 139   for (i = 0; i < 4; i++)
 140     {
 141       if (!_gtk_css_parser_has_number (parser))
 142         break;
 143       x[i] = _gtk_css_number_value_parse (parser,
 144                                           GTK_CSS_POSITIVE_ONLY
 145                                           | GTK_CSS_PARSE_PERCENT
 146                                           | GTK_CSS_NUMBER_AS_PIXELS
 147                                           | GTK_CSS_PARSE_LENGTH);
 148       if (x[i] == NULL)
 149         goto fail;
 150     }
 151
 152   if (i == 0)
 153     {
 154       _gtk_css_parser_error (parser, "Expected a number");
 155       goto fail;
 156     }
 157
 158   /* The magic (i - 1) >> 1 below makes it take the correct value
 159    * according to spec. Feel free to check the 4 cases */
 160   for (; i < 4; i++)
 161     x[i] = _gtk_css_value_ref (x[(i - 1) >> 1]);
 162
 163   if (_gtk_css_parser_try (parser, "/", TRUE))
 164     {
 165       for (i = 0; i < 4; i++)
 166         {
 167           if (!_gtk_css_parser_has_number (parser))
 168             break;
 169           y[i] = _gtk_css_number_value_parse (parser,
 170                                               GTK_CSS_POSITIVE_ONLY
 171                                               | GTK_CSS_PARSE_PERCENT
 172                                               | GTK_CSS_NUMBER_AS_PIXELS
 173                                               | GTK_CSS_PARSE_LENGTH);
 174           if (y[i] == NULL)
 175             goto fail;
 176         }
 177
 178       if (i == 0)
 179         {
 180           _gtk_css_parser_error (parser, "Expected a number");
 181           goto fail;
 182         }
 183
 184       for (; i < 4; i++)
 185         y[i] = _gtk_css_value_ref (y[(i - 1) >> 1]);
 186     }
 187   else
 188     {
 189       for (i = 0; i < 4; i++)
 190         y[i] = _gtk_css_value_ref (x[i]);
 191     }
 192
 193   for (i = 0; i < 4; i++)
 194     {
 195       values[i] = _gtk_css_corner_value_new (x[i], y[i]);
 196     }
 197
 198   return TRUE;
 199
 200 fail:
 201   for (i = 0; i < 4; i++)
 202     {
 203       if (x[i])
 204         _gtk_css_value_unref (x[i]);
 205       if (y[i])
 206         _gtk_css_value_unref (y[i]);
 207     }
 208   return FALSE;
 209 }
 210
 211 static gboolean
 212 parse_border_color (GtkCssShorthandProperty  *shorthand,
 213                     GtkCssValue             **values,
 214                     GtkCssParser             *parser)
 215 {
 216   guint i;
 217
 218   for (i = 0; i < 4; i++)
 219     {
 220       values[i] = _gtk_css_symbolic_value_new (parser);
 221       if (values[i] == NULL)
 222         return FALSE;
 223
 224       if (value_is_done_parsing (parser))
 225         break;
 226     }
 227
 228   for (i++; i < 4; i++)
 229     {
 230       values[i] = _gtk_css_value_ref (values[(i - 1) >> 1]);
 231     }
 232
 233   return TRUE;
 234 }
 235
 236 static gboolean
 237 parse_border_style (GtkCssShorthandProperty  *shorthand,
 238                     GtkCssValue             **values,
 239                     GtkCssParser             *parser)
 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 {
 267   do
 268     {
 269       if (values[0] == NULL &&
 270           (_gtk_css_parser_has_prefix (parser, "none") ||
 271            _gtk_css_image_can_parse (parser)))
 272         {
 273           GtkCssImage *image;
 274
 275           if (_gtk_css_parser_try (parser, "none", TRUE))
 276             image = NULL;
 277           else
 278             {
 279               image = _gtk_css_image_new_parse (parser);
 280               if (image == NULL)
 281                 return FALSE;
 282             }
 283
 284           values[0] = _gtk_css_image_value_new (image);
 285         }
 286       else if (values[3] == NULL &&
 287                (values[3] = _gtk_css_border_repeat_value_try_parse (parser)))
 288         {
 289           /* please move along */
 290         }
 291       else if (values[1] == NULL)
 292         {
 293           values[1] = _gtk_css_border_value_parse (parser,
 294                                                    GTK_CSS_PARSE_PERCENT
 295                                                    | GTK_CSS_PARSE_NUMBER
 296                                                    | GTK_CSS_POSITIVE_ONLY,
 297                                                    FALSE,
 298                                                    TRUE);
 299           if (values[1] == NULL)
 300             return FALSE;
 301
 302           if (_gtk_css_parser_try (parser, "/", TRUE))
 303             {
 304               values[2] = _gtk_css_border_value_parse (parser,
 305                                                        GTK_CSS_PARSE_PERCENT
 306                                                        | GTK_CSS_PARSE_LENGTH
 307                                                        | GTK_CSS_PARSE_NUMBER
 308                                                        | GTK_CSS_POSITIVE_ONLY,
 309                                                        TRUE,
 310                                                        FALSE);
 311               if (values[2] == NULL)
 312                 return FALSE;
 313             }
 314         }
 315       else
 316         {
 317           /* We parsed everything and there's still stuff left?
 318            * Pretend we didn't notice and let the normal code produce
 319            * a 'junk at end of value' error */
 320           break;
 321         }
 322     }
 323   while (!value_is_done_parsing (parser));
 324
 325   return TRUE;
 326 }
 327
 328 static gboolean
 329 parse_border_side (GtkCssShorthandProperty  *shorthand,
 330                    GtkCssValue             **values,
 331                    GtkCssParser             *parser)
 332 {
 333   do
 334   {
 335     if (values[0] == NULL &&
 336          _gtk_css_parser_has_number (parser))
 337       {
 338         values[0] = _gtk_css_number_value_parse (parser,
 339                                                  GTK_CSS_POSITIVE_ONLY
 340                                                  | GTK_CSS_NUMBER_AS_PIXELS
 341                                                  | GTK_CSS_PARSE_LENGTH);
 342         if (values[0] == NULL)
 343           return FALSE;
 344       }
 345     else if (values[1] == NULL &&
 346              (values[1] = _gtk_css_border_style_value_try_parse (parser)))
 347       {
 348         /* Nothing to do */
 349       }
 350     else if (values[2] == NULL)
 351       {
 352         values[2] = _gtk_css_symbolic_value_new (parser);
 353         if (values[2] == NULL)
 354           return FALSE;
 355       }
 356   }
 357   while (!value_is_done_parsing (parser));
 358
 359   return TRUE;
 360 }
 361
 362 static gboolean
 363 parse_border (GtkCssShorthandProperty  *shorthand,
 364               GtkCssValue             **values,
 365               GtkCssParser             *parser)
 366 {
 367   do
 368   {
 369     if (values[0] == NULL &&
 370          _gtk_css_parser_has_number (parser))
 371       {
 372         values[0] = _gtk_css_number_value_parse (parser,
 373                                                  GTK_CSS_POSITIVE_ONLY
 374                                                  | GTK_CSS_NUMBER_AS_PIXELS
 375                                                  | GTK_CSS_PARSE_LENGTH);
 376         if (values[0] == NULL)
 377           return FALSE;
 378         values[1] = _gtk_css_value_ref (values[0]);
 379         values[2] = _gtk_css_value_ref (values[0]);
 380         values[3] = _gtk_css_value_ref (values[0]);
 381       }
 382     else if (values[4] == NULL &&
 383              (values[4] = _gtk_css_border_style_value_try_parse (parser)))
 384       {
 385         values[5] = _gtk_css_value_ref (values[4]);
 386         values[6] = _gtk_css_value_ref (values[4]);
 387         values[7] = _gtk_css_value_ref (values[4]);
 388       }
 389     else if (!G_IS_VALUE (&values[8]))
 390       {
 391         values[8] = _gtk_css_symbolic_value_new (parser);
 392         if (values[8] == NULL)
 393           return FALSE;
 394
 395         values[9] = _gtk_css_value_ref (values[8]);
 396         values[10] = _gtk_css_value_ref (values[8]);
 397         values[11] = _gtk_css_value_ref (values[8]);
 398       }
 399     else
 400       {
 401         /* We parsed everything and there's still stuff left?
 402          * Pretend we didn't notice and let the normal code produce
 403          * a 'junk at end of value' error */
 404         break;
 405       }
 406   }
 407   while (!value_is_done_parsing (parser));
 408
 409   /* Note that border-image values are not set: according to the spec
 410      they just need to be reset when using the border shorthand */
 411
 412   return TRUE;
 413 }
 414
 415 static gboolean
 416 parse_font (GtkCssShorthandProperty  *shorthand,
 417             GtkCssValue             **values,
 418             GtkCssParser             *parser)
 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       values[0] = _gtk_css_array_value_new (_gtk_css_string_value_new (pango_font_description_get_family (desc)));
 436     }
 437   if (mask & PANGO_FONT_MASK_STYLE)
 438     {
 439       values[1] = _gtk_css_font_style_value_new (pango_font_description_get_style (desc));
 440     }
 441   if (mask & PANGO_FONT_MASK_VARIANT)
 442     {
 443       values[2] = _gtk_css_font_variant_value_new (pango_font_description_get_variant (desc));
 444     }
 445   if (mask & PANGO_FONT_MASK_WEIGHT)
 446     {
 447       values[3] = _gtk_css_font_weight_value_new (pango_font_description_get_weight (desc));
 448     }
 449   if (mask & PANGO_FONT_MASK_SIZE)
 450     {
 451       values[4] = _gtk_css_number_value_new ((double) pango_font_description_get_size (desc) / PANGO_SCALE, GTK_CSS_PX);
 452     }
 453
 454   pango_font_description_free (desc);
 455
 456   return TRUE;
 457 }
 458
 459 static gboolean
 460 parse_background (GtkCssShorthandProperty  *shorthand,
 461                   GtkCssValue             **values,
 462                   GtkCssParser             *parser)
 463 {
 464   GtkCssValue *value;
 465
 466   do
 467     {
 468       /* the image part */
 469       if (values[0] == NULL &&
 470           (_gtk_css_parser_has_prefix (parser, "none") ||
 471            _gtk_css_image_can_parse (parser)))
 472         {
 473           GtkCssImage *image;
 474
 475           if (_gtk_css_parser_try (parser, "none", TRUE))
 476             image = NULL;
 477           else
 478             {
 479               image = _gtk_css_image_new_parse (parser);
 480               if (image == NULL)
 481                 return FALSE;
 482             }
 483
 484           values[0] = _gtk_css_array_value_new (_gtk_css_image_value_new (image));
 485         }
 486       else if (values[3] == NULL &&
 487                (value = _gtk_css_background_repeat_value_try_parse (parser)))
 488         {
 489           values[3] = _gtk_css_array_value_new (value);
 490           value = NULL;
 491         }
 492       else if ((values[4] == NULL || values[5] == NULL) &&
 493                (value = _gtk_css_area_value_try_parse (parser)))
 494         {
 495           values[5] = _gtk_css_array_value_new (value);
 496
 497           if (values[4] == NULL)
 498             {
 499               values[4] = values[5];
 500               values[5] = NULL;
 501             }
 502           value = NULL;
 503         }
 504       else if (values[6] == NULL)
 505         {
 506           value = _gtk_css_symbolic_value_new (parser);
 507           if (value == NULL)
 508             return FALSE;
 509
 510           values[6] = _gtk_css_array_value_new (value);
 511           value = NULL;
 512         }
 513       else if (values[1] == NULL &&
 514                (value = _gtk_css_position_value_parse (parser)))
 515         {
 516           values[1] = _gtk_css_array_value_new (value);
 517           value = NULL;
 518
 519           if (_gtk_css_parser_try (parser, "/", TRUE) &&
 520               (value = _gtk_css_bg_size_value_parse (parser)))
 521             {
 522               values[2] = _gtk_css_array_value_new (value);
 523               value = NULL;
 524             }
 525         }
 526       else
 527         {
 528           /* We parsed everything and there's still stuff left?
 529            * Pretend we didn't notice and let the normal code produce
 530            * a 'junk at end of value' error */
 531           break;
 532         }
 533     }
 534   while (!value_is_done_parsing (parser));
 535
 536   return TRUE;
 537 }
 538
 539 static gboolean
 540 parse_one_transition (GtkCssShorthandProperty  *shorthand,
 541                       GtkCssValue             **values,
 542                       GtkCssParser             *parser)
 543 {
 544   do
 545     {
 546       /* the image part */
 547       if (values[2] == NULL &&
 548           _gtk_css_parser_has_number (parser) && !_gtk_css_parser_begins_with (parser, '-'))
 549         {
 550           GtkCssValue *number = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_TIME);
 551
 552           if (number == NULL)
 553             return FALSE;
 554
 555           if (values[1] == NULL)
 556             values[1] = number;
 557           else
 558             values[2] = number;
 559         }
 560       else if (values[3] == NULL &&
 561                _gtk_css_ease_value_can_parse (parser))
 562         {
 563           values[3] = _gtk_css_ease_value_parse (parser);
 564
 565           if (values[3] == NULL)
 566             return FALSE;
 567         }
 568       else if (values[0] == NULL)
 569         {
 570           values[0] = _gtk_css_ident_value_try_parse (parser);
 571           if (values[0] == NULL)
 572             {
 573               _gtk_css_parser_error (parser, "Unknown value for property");
 574               return FALSE;
 575             }
 576
 577         }
 578       else
 579         {
 580           /* We parsed everything and there's still stuff left?
 581            * Pretend we didn't notice and let the normal code produce
 582            * a 'junk at end of value' error */
 583           break;
 584         }
 585     }
 586   while (!value_is_done_parsing (parser));
 587
 588   return TRUE;
 589 }
 590
 591 static gboolean
 592 parse_transition (GtkCssShorthandProperty  *shorthand,
 593                   GtkCssValue             **values,
 594                   GtkCssParser             *parser)
 595 {
 596   GtkCssValue *step_values[4];
 597   GPtrArray *arrays[4];
 598   guint i;
 599
 600   for (i = 0; i < 4; i++)
 601     {
 602       arrays[i] = g_ptr_array_new ();
 603       step_values[i] = NULL;
 604     }
 605
 606   do {
 607     if (!parse_one_transition (shorthand, step_values, parser))
 608       {
 609         for (i = 0; i < 4; i++)
 610           {
 611             g_ptr_array_set_free_func (arrays[i], (GDestroyNotify) _gtk_css_value_unref);
 612             g_ptr_array_unref (arrays[i]);
 613             return FALSE;
 614           }
 615       }
 616
 617       for (i = 0; i < 4; i++)
 618         {
 619           if (step_values[i] == NULL)
 620             {
 621               GtkCssValue *initial = _gtk_css_style_property_get_initial_value (
 622                                          _gtk_css_shorthand_property_get_subproperty (shorthand, i));
 623               step_values[i] = _gtk_css_value_ref (_gtk_css_array_value_get_nth (initial, 0));
 624             }
 625
 626           g_ptr_array_add (arrays[i], step_values[i]);
 627           step_values[i] = NULL;
 628         }
 629   } while (_gtk_css_parser_try (parser, ",", TRUE));
 630
 631   for (i = 0; i < 4; i++)
 632     {
 633       values[i] = _gtk_css_array_value_new_from_array ((GtkCssValue **) arrays[i]->pdata, arrays[i]->len);
 634       g_ptr_array_unref (arrays[i]);
 635     }
 636
 637   return TRUE;
 638 }
 639
 640 /*** PACKING ***/
 641
 642 static void
 643 unpack_border (GtkCssShorthandProperty *shorthand,
 644                GtkStyleProperties      *props,
 645                GtkStateFlags            state,
 646                const GValue            *value)
 647 {
 648   GValue v = G_VALUE_INIT;
 649   GtkBorder *border = g_value_get_boxed (value);
 650
 651   g_value_init (&v, G_TYPE_INT);
 652
 653   g_value_set_int (&v, border->top);
 654   _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 0)), props, state, &v);
 655   g_value_set_int (&v, border->right);
 656   _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 1)), props, state, &v);
 657   g_value_set_int (&v, border->bottom);
 658   _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 2)), props, state, &v);
 659   g_value_set_int (&v, border->left);
 660   _gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 3)), props, state, &v);
 661
 662   g_value_unset (&v);
 663 }
 664
 665 static void
 666 pack_border (GtkCssShorthandProperty *shorthand,
 667              GValue                  *value,
 668              GtkStyleQueryFunc        query_func,
 669              gpointer                 query_data)
 670 {
 671   GtkCssStyleProperty *prop;
 672   GtkBorder border;
 673   GValue v;
 674
 675   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 0);
 676   _gtk_style_property_query (GTK_STYLE_PROPERTY (prop), &v, query_func, query_data);
 677   border.top = g_value_get_int (&v);
 678   g_value_unset (&v);
 679
 680   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 1);
 681   _gtk_style_property_query (GTK_STYLE_PROPERTY (prop), &v, query_func, query_data);
 682   border.right = g_value_get_int (&v);
 683   g_value_unset (&v);
 684
 685   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 2);
 686   _gtk_style_property_query (GTK_STYLE_PROPERTY (prop), &v, query_func, query_data);
 687   border.bottom = g_value_get_int (&v);
 688   g_value_unset (&v);
 689
 690   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 3);
 691   _gtk_style_property_query (GTK_STYLE_PROPERTY (prop), &v, query_func, query_data);
 692   border.left = g_value_get_int (&v);
 693   g_value_unset (&v);
 694
 695   g_value_init (value, GTK_TYPE_BORDER);
 696   g_value_set_boxed (value, &border);
 697 }
 698
 699 static void
 700 unpack_border_radius (GtkCssShorthandProperty *shorthand,
 701                       GtkStyleProperties      *props,
 702                       GtkStateFlags            state,
 703                       const GValue            *value)
 704 {
 705   GtkCssValue *css_value;
 706   guint i;
 707
 708   css_value = _gtk_css_corner_value_new (_gtk_css_number_value_new (g_value_get_int (value), GTK_CSS_PX),
 709                                          _gtk_css_number_value_new (g_value_get_int (value), GTK_CSS_PX));
 710
 711   for (i = 0; i < 4; i++)
 712     _gtk_style_properties_set_property_by_property (props,
 713                                                     _gtk_css_shorthand_property_get_subproperty (shorthand, i),
 714                                                     state,
 715                                                     css_value);
 716
 717   _gtk_css_value_unref (css_value);
 718 }
 719
 720 static void
 721 pack_border_radius (GtkCssShorthandProperty *shorthand,
 722                     GValue                  *value,
 723                     GtkStyleQueryFunc        query_func,
 724                     gpointer                 query_data)
 725 {
 726   GtkCssStyleProperty *prop;
 727   GtkCssValue *v;
 728   int i = 0;
 729
 730   prop = GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("border-top-left-radius"));
 731   v = (* query_func) (_gtk_css_style_property_get_id (prop), query_data);
 732   if (v)
 733     i = _gtk_css_corner_value_get_x (v, 100);
 734
 735   g_value_init (value, G_TYPE_INT);
 736   g_value_set_int (value, i);
 737 }
 738
 739 static void
 740 unpack_font_description (GtkCssShorthandProperty *shorthand,
 741                          GtkStyleProperties      *props,
 742                          GtkStateFlags            state,
 743                          const GValue            *value)
 744 {
 745   GtkStyleProperty *prop;
 746   PangoFontDescription *description;
 747   PangoFontMask mask;
 748   GValue v = G_VALUE_INIT;
 749
 750   /* For backwards compat, we only unpack values that are indeed set.
 751    * For strict CSS conformance we need to unpack all of them.
 752    * Note that we do set all of them in the parse function, so it
 753    * will not have effects when parsing CSS files. It will though
 754    * for custom style providers.
 755    */
 756
 757   description = g_value_get_boxed (value);
 758
 759   if (description)
 760     mask = pango_font_description_get_set_fields (description);
 761   else
 762     mask = 0;
 763
 764   if (mask & PANGO_FONT_MASK_FAMILY)
 765     {
 766       GPtrArray *strv = g_ptr_array_new ();
 767
 768       g_ptr_array_add (strv, g_strdup (pango_font_description_get_family (description)));
 769       g_ptr_array_add (strv, NULL);
 770       g_value_init (&v, G_TYPE_STRV);
 771       g_value_take_boxed (&v, g_ptr_array_free (strv, FALSE));
 772
 773       prop = _gtk_style_property_lookup ("font-family");
 774       _gtk_style_property_assign (prop, props, state, &v);
 775       g_value_unset (&v);
 776     }
 777
 778   if (mask & PANGO_FONT_MASK_STYLE)
 779     {
 780       g_value_init (&v, PANGO_TYPE_STYLE);
 781       g_value_set_enum (&v, pango_font_description_get_style (description));
 782
 783       prop = _gtk_style_property_lookup ("font-style");
 784       _gtk_style_property_assign (prop, props, state, &v);
 785       g_value_unset (&v);
 786     }
 787
 788   if (mask & PANGO_FONT_MASK_VARIANT)
 789     {
 790       g_value_init (&v, PANGO_TYPE_VARIANT);
 791       g_value_set_enum (&v, pango_font_description_get_variant (description));
 792
 793       prop = _gtk_style_property_lookup ("font-variant");
 794       _gtk_style_property_assign (prop, props, state, &v);
 795       g_value_unset (&v);
 796     }
 797
 798   if (mask & PANGO_FONT_MASK_WEIGHT)
 799     {
 800       g_value_init (&v, PANGO_TYPE_WEIGHT);
 801       g_value_set_enum (&v, pango_font_description_get_weight (description));
 802
 803       prop = _gtk_style_property_lookup ("font-weight");
 804       _gtk_style_property_assign (prop, props, state, &v);
 805       g_value_unset (&v);
 806     }
 807
 808   if (mask & PANGO_FONT_MASK_SIZE)
 809     {
 810       g_value_init (&v, G_TYPE_DOUBLE);
 811       g_value_set_double (&v, (double) pango_font_description_get_size (description) / PANGO_SCALE);
 812
 813       prop = _gtk_style_property_lookup ("font-size");
 814       _gtk_style_property_assign (prop, props, state, &v);
 815       g_value_unset (&v);
 816     }
 817 }
 818
 819 static void
 820 pack_font_description (GtkCssShorthandProperty *shorthand,
 821                        GValue                  *value,
 822                        GtkStyleQueryFunc        query_func,
 823                        gpointer                 query_data)
 824 {
 825   PangoFontDescription *description;
 826   GtkCssValue *v;
 827
 828   description = pango_font_description_new ();
 829
 830   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-family"))), query_data);
 831   if (v)
 832     {
 833       /* xxx: Can we set all the families here somehow? */
 834       pango_font_description_set_family (description, _gtk_css_string_value_get (_gtk_css_array_value_get_nth (v, 0)));
 835     }
 836
 837   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-size"))), query_data);
 838   if (v)
 839     pango_font_description_set_size (description, round (_gtk_css_number_value_get (v, 100) * PANGO_SCALE));
 840
 841   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-style"))), query_data);
 842   if (v)
 843     pango_font_description_set_style (description, _gtk_css_font_style_value_get (v));
 844
 845   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-variant"))), query_data);
 846   if (v)
 847     pango_font_description_set_variant (description, _gtk_css_font_variant_value_get (v));
 848
 849   v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-weight"))), query_data);
 850   if (v)
 851     pango_font_description_set_weight (description, _gtk_css_font_weight_value_get (v));
 852
 853   g_value_init (value, PANGO_TYPE_FONT_DESCRIPTION);
 854   g_value_take_boxed (value, description);
 855 }
 856
 857 static void
 858 unpack_to_everything (GtkCssShorthandProperty *shorthand,
 859                       GtkStyleProperties      *props,
 860                       GtkStateFlags            state,
 861                       const GValue            *value)
 862 {
 863   GtkCssStyleProperty *prop;
 864   guint i, n;
 865
 866   n = _gtk_css_shorthand_property_get_n_subproperties (shorthand);
 867
 868   for (i = 0; i < n; i++)
 869     {
 870       prop = _gtk_css_shorthand_property_get_subproperty (shorthand, i);
 871       _gtk_style_property_assign (GTK_STYLE_PROPERTY (prop), props, state, value);
 872     }
 873 }
 874
 875 static void
 876 pack_first_element (GtkCssShorthandProperty *shorthand,
 877                     GValue                  *value,
 878                     GtkStyleQueryFunc        query_func,
 879                     gpointer                 query_data)
 880 {
 881   GtkCssStyleProperty *prop;
 882
 883   /* NB: This is a fallback for properties that originally were
 884    * not used as shorthand. We just pick the first subproperty
 885    * as a representative.
 886    * Lesson learned: Don't query the shorthand, query the
 887    * real properties instead. */
 888   prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 0);
 889   _gtk_style_property_query (GTK_STYLE_PROPERTY (prop),
 890                              value,
 891                              query_func,
 892                              query_data);
 893 }
 894
 895 static void
 896 _gtk_css_shorthand_property_register (const char                        *name,
 897                                       GType                              value_type,
 898                                       const char                       **subproperties,
 899                                       GtkCssShorthandPropertyParseFunc   parse_func,
 900                                       GtkCssShorthandPropertyAssignFunc  assign_func,
 901                                       GtkCssShorthandPropertyQueryFunc   query_func)
 902 {
 903   GtkCssShorthandProperty *node;
 904
 905   node = g_object_new (GTK_TYPE_CSS_SHORTHAND_PROPERTY,
 906                        "name", name,
 907                        "value-type", value_type,
 908                        "subproperties", subproperties,
 909                        NULL);
 910
 911   node->parse = parse_func;
 912   node->assign = assign_func;
 913   node->query = query_func;
 914 }
 915
 916 void
 917 _gtk_css_shorthand_property_init_properties (void)
 918 {
 919   /* The order is important here, be careful when changing it */
 920   const char *font_subproperties[] = { "font-family", "font-style", "font-variant", "font-weight", "font-size", NULL };
 921   const char *margin_subproperties[] = { "margin-top", "margin-right", "margin-bottom", "margin-left", NULL };
 922   const char *padding_subproperties[] = { "padding-top", "padding-right", "padding-bottom", "padding-left", NULL };
 923   const char *border_width_subproperties[] = { "border-top-width", "border-right-width", "border-bottom-width", "border-left-width", NULL };
 924   const char *border_radius_subproperties[] = { "border-top-left-radius", "border-top-right-radius",
 925                                                 "border-bottom-right-radius", "border-bottom-left-radius", NULL };
 926   const char *border_color_subproperties[] = { "border-top-color", "border-right-color", "border-bottom-color", "border-left-color", NULL };
 927   const char *border_style_subproperties[] = { "border-top-style", "border-right-style", "border-bottom-style", "border-left-style", NULL };
 928   const char *border_image_subproperties[] = { "border-image-source", "border-image-slice", "border-image-width", "border-image-repeat", NULL };
 929   const char *border_top_subproperties[] = { "border-top-width", "border-top-style", "border-top-color", NULL };
 930   const char *border_right_subproperties[] = { "border-right-width", "border-right-style", "border-right-color", NULL };
 931   const char *border_bottom_subproperties[] = { "border-bottom-width", "border-bottom-style", "border-bottom-color", NULL };
 932   const char *border_left_subproperties[] = { "border-left-width", "border-left-style", "border-left-color", NULL };
 933   const char *border_subproperties[] = { "border-top-width", "border-right-width", "border-bottom-width", "border-left-width",
 934                                          "border-top-style", "border-right-style", "border-bottom-style", "border-left-style",
 935                                          "border-top-color", "border-right-color", "border-bottom-color", "border-left-color",
 936                                          "border-image-source", "border-image-slice", "border-image-width", "border-image-repeat", NULL };
 937   const char *outline_subproperties[] = { "outline-width", "outline-style", "outline-color", NULL };
 938   const char *background_subproperties[] = { "background-image", "background-position", "background-size", "background-repeat", "background-clip", "background-origin",
 939                                              "background-color", NULL };
 940   const char *transition_subproperties[] = { "transition-property", "transition-duration", "transition-delay", "transition-timing-function", NULL };
 941
 942   _gtk_css_shorthand_property_register   ("font",
 943                                           PANGO_TYPE_FONT_DESCRIPTION,
 944                                           font_subproperties,
 945                                           parse_font,
 946                                           unpack_font_description,
 947                                           pack_font_description);
 948   _gtk_css_shorthand_property_register   ("margin",
 949                                           GTK_TYPE_BORDER,
 950                                           margin_subproperties,
 951                                           parse_margin,
 952                                           unpack_border,
 953                                           pack_border);
 954   _gtk_css_shorthand_property_register   ("padding",
 955                                           GTK_TYPE_BORDER,
 956                                           padding_subproperties,
 957                                           parse_padding,
 958                                           unpack_border,
 959                                           pack_border);
 960   _gtk_css_shorthand_property_register   ("border-width",
 961                                           GTK_TYPE_BORDER,
 962                                           border_width_subproperties,
 963                                           parse_border_width,
 964                                           unpack_border,
 965                                           pack_border);
 966   _gtk_css_shorthand_property_register   ("border-radius",
 967                                           G_TYPE_INT,
 968                                           border_radius_subproperties,
 969                                           parse_border_radius,
 970                                           unpack_border_radius,
 971                                           pack_border_radius);
 972   _gtk_css_shorthand_property_register   ("border-color",
 973                                           GDK_TYPE_RGBA,
 974                                           border_color_subproperties,
 975                                           parse_border_color,
 976                                           unpack_to_everything,
 977                                           pack_first_element);
 978   _gtk_css_shorthand_property_register   ("border-style",
 979                                           GTK_TYPE_BORDER_STYLE,
 980                                           border_style_subproperties,
 981                                           parse_border_style,
 982                                           unpack_to_everything,
 983                                           pack_first_element);
 984   _gtk_css_shorthand_property_register   ("border-image",
 985                                           G_TYPE_NONE,
 986                                           border_image_subproperties,
 987                                           parse_border_image,
 988                                           NULL,
 989                                           NULL);
 990   _gtk_css_shorthand_property_register   ("border-top",
 991                                           G_TYPE_NONE,
 992                                           border_top_subproperties,
 993                                           parse_border_side,
 994                                           NULL,
 995                                           NULL);
 996   _gtk_css_shorthand_property_register   ("border-right",
 997                                           G_TYPE_NONE,
 998                                           border_right_subproperties,
 999                                           parse_border_side,
1000                                           NULL,
1001                                           NULL);
1002   _gtk_css_shorthand_property_register   ("border-bottom",
1003                                           G_TYPE_NONE,
1004                                           border_bottom_subproperties,
1005                                           parse_border_side,
1006                                           NULL,
1007                                           NULL);
1008   _gtk_css_shorthand_property_register   ("border-left",
1009                                           G_TYPE_NONE,
1010                                           border_left_subproperties,
1011                                           parse_border_side,
1012                                           NULL,
1013                                           NULL);
1014   _gtk_css_shorthand_property_register   ("border",
1015                                           G_TYPE_NONE,
1016                                           border_subproperties,
1017                                           parse_border,
1018                                           NULL,
1019                                           NULL);
1020   _gtk_css_shorthand_property_register   ("outline",
1021                                           G_TYPE_NONE,
1022                                           outline_subproperties,
1023                                           parse_border_side,
1024                                           NULL,
1025                                           NULL);
1026   _gtk_css_shorthand_property_register   ("background",
1027                                           G_TYPE_NONE,
1028                                           background_subproperties,
1029                                           parse_background,
1030                                           NULL,
1031                                           NULL);
1032   _gtk_css_shorthand_property_register   ("transition",
1033                                           G_TYPE_NONE,
1034                                           transition_subproperties,
1035                                           parse_transition,
1036                                           NULL,
1037                                           NULL);
1038 }