Pileus Git - ~andy/gtk/blob - gtk/gtkcssshorthandproperty.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, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  *
  18  * Authors: Benjamin Otte <otte@gnome.org>
  19  */
  20
  21 #include "config.h"
  22
  23 #include "gtkcssshorthandpropertyprivate.h"
  24
  25 #include "gtkintl.h"
  26
  27 enum {
  28   PROP_0,
  29   PROP_SUBPROPERTIES,
  30 };
  31
  32 G_DEFINE_TYPE (GtkCssShorthandProperty, _gtk_css_shorthand_property, GTK_TYPE_STYLE_PROPERTY)
  33
  34 static void
  35 gtk_css_shorthand_property_set_property (GObject      *object,
  36                                          guint         prop_id,
  37                                          const GValue *value,
  38                                          GParamSpec   *pspec)
  39 {
  40   GtkCssShorthandProperty *property = GTK_CSS_SHORTHAND_PROPERTY (object);
  41   const char **subproperties;
  42   guint i;
  43
  44   switch (prop_id)
  45     {
  46     case PROP_SUBPROPERTIES:
  47       subproperties = g_value_get_boxed (value);
  48       g_assert (subproperties);
  49       for (i = 0; subproperties[i] != NULL; i++)
  50         {
  51           GtkStyleProperty *subproperty = _gtk_style_property_lookup (subproperties[i]);
  52           g_assert (GTK_IS_CSS_STYLE_PROPERTY (subproperty));
  53           g_ptr_array_add (property->subproperties, subproperty);
  54         }
  55       break;
  56     default:
  57       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
  58       break;
  59     }
  60 }
  61
  62 static void
  63 _gtk_css_shorthand_property_assign (GtkStyleProperty   *property,
  64                                     GtkStyleProperties *props,
  65                                     GtkStateFlags       state,
  66                                     const GValue       *value)
  67 {
  68   GParameter *parameters;
  69   guint i, n_parameters;
  70
  71   parameters = _gtk_style_property_unpack (property, value, &n_parameters);
  72
  73   for (i = 0; i < n_parameters; i++)
  74     {
  75       _gtk_style_property_assign (_gtk_style_property_lookup (parameters[i].name),
  76                                   props,
  77                                   state,
  78                                   &parameters[i].value);
  79       g_value_unset (&parameters[i].value);
  80     }
  81   g_free (parameters);
  82 }
  83
  84 static void
  85 _gtk_css_shorthand_property_query (GtkStyleProperty   *property,
  86                                    GtkStyleProperties *props,
  87                                    GtkStateFlags       state,
  88                                    GtkStylePropertyContext *context,
  89                                    GValue             *value)
  90 {
  91   property->pack_func (value, props, state, context);
  92 }
  93
  94 static void
  95 _gtk_css_shorthand_property_class_init (GtkCssShorthandPropertyClass *klass)
  96 {
  97   GObjectClass *object_class = G_OBJECT_CLASS (klass);
  98   GtkStylePropertyClass *property_class = GTK_STYLE_PROPERTY_CLASS (klass);
  99
 100   object_class->set_property = gtk_css_shorthand_property_set_property;
 101
 102   g_object_class_install_property (object_class,
 103                                    PROP_SUBPROPERTIES,
 104                                    g_param_spec_boxed ("subproperties",
 105                                                        P_("Subproperties"),
 106                                                        P_("The list of subproperties"),
 107                                                        G_TYPE_STRV,
 108                                                        G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
 109
 110   property_class->assign = _gtk_css_shorthand_property_assign;
 111   property_class->query = _gtk_css_shorthand_property_query;
 112 }
 113
 114 static void
 115 _gtk_css_shorthand_property_init (GtkCssShorthandProperty *shorthand)
 116 {
 117   shorthand->subproperties = g_ptr_array_new_with_free_func (g_object_unref);
 118 }
 119
 120 GtkCssStyleProperty *
 121 _gtk_css_shorthand_property_get_subproperty (GtkCssShorthandProperty *shorthand,
 122                                              guint                    property)
 123 {
 124   g_return_val_if_fail (GTK_IS_CSS_SHORTHAND_PROPERTY (shorthand), NULL);
 125   g_return_val_if_fail (property < shorthand->subproperties->len, NULL);
 126
 127   return g_ptr_array_index (shorthand->subproperties, property);
 128 }
 129
 130 guint
 131 _gtk_css_shorthand_property_get_n_subproperties (GtkCssShorthandProperty *shorthand)
 132 {
 133   g_return_val_if_fail (GTK_IS_CSS_SHORTHAND_PROPERTY (shorthand), 0);
 134
 135   return shorthand->subproperties->len;
 136 }
 137