1/* GTK - The GIMP Toolkit
2 * Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
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 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
18#include "config.h"
19
20#include "gtkstylepropertyprivate.h"
21
22#include "gtkcssprovider.h"
23#include <gtk/css/gtkcss.h>
24#include "gtk/css/gtkcsstokenizerprivate.h"
25#include "gtk/css/gtkcssparserprivate.h"
26#include "gtkcssshorthandpropertyprivate.h"
27#include "gtkcssstylepropertyprivate.h"
28#include "gtkcsstypesprivate.h"
29#include "gtkintl.h"
30#include "gtkprivatetypebuiltins.h"
31
32enum {
33 PROP_0,
34 PROP_NAME
35};
36
37G_DEFINE_ABSTRACT_TYPE (GtkStyleProperty, _gtk_style_property, G_TYPE_OBJECT)
38
39static void
40gtk_style_property_finalize (GObject *object)
41{
42 GtkStyleProperty *property = GTK_STYLE_PROPERTY (object);
43
44 g_warning ("finalizing %s '%s', how could this happen?", G_OBJECT_TYPE_NAME (object), property->name);
45
46 G_OBJECT_CLASS (_gtk_style_property_parent_class)->finalize (object);
47}
48
49static void
50gtk_style_property_set_property (GObject *object,
51 guint prop_id,
52 const GValue *value,
53 GParamSpec *pspec)
54{
55 GtkStyleProperty *property = GTK_STYLE_PROPERTY (object);
56 GtkStylePropertyClass *klass = GTK_STYLE_PROPERTY_GET_CLASS (property);
57
58 switch (prop_id)
59 {
60 case PROP_NAME:
61 property->name = g_value_dup_string (value);
62 g_assert (property->name);
63 g_assert (g_hash_table_lookup (klass->properties, property->name) == NULL);
64 g_hash_table_insert (hash_table: klass->properties, key: property->name, value: property);
65 break;
66 default:
67 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
68 break;
69 }
70}
71
72static void
73gtk_style_property_get_property (GObject *object,
74 guint prop_id,
75 GValue *value,
76 GParamSpec *pspec)
77{
78 GtkStyleProperty *property = GTK_STYLE_PROPERTY (object);
79
80 switch (prop_id)
81 {
82 case PROP_NAME:
83 g_value_set_string (value, v_string: property->name);
84 break;
85 default:
86 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
87 break;
88 }
89}
90
91static void
92_gtk_style_property_class_init (GtkStylePropertyClass *klass)
93{
94 GObjectClass *object_class = G_OBJECT_CLASS (klass);
95
96 object_class->finalize = gtk_style_property_finalize;
97 object_class->set_property = gtk_style_property_set_property;
98 object_class->get_property = gtk_style_property_get_property;
99
100 g_object_class_install_property (oclass: object_class,
101 property_id: PROP_NAME,
102 pspec: g_param_spec_string (name: "name",
103 P_("Property name"),
104 P_("The name of the property"),
105 NULL,
106 flags: G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
107
108 klass->properties = g_hash_table_new (hash_func: g_str_hash, key_equal_func: g_str_equal);
109}
110
111static void
112_gtk_style_property_init (GtkStyleProperty *property)
113{
114}
115
116/**
117 * _gtk_style_property_parse_value:
118 * @property: the property
119 * @parser: the parser to parse from
120 *
121 * Tries to parse the given @property from the given @parser into
122 * @value. The type that @value will be assigned is dependent on
123 * the parser and no assumptions must be made about it. If the
124 * parsing fails, %FALSE will be returned and @value will be
125 * left uninitialized.
126 *
127 * Only if @property is a `GtkCssShorthandProperty`, the @value will
128 * always be a `GtkCssValue` whose values can be queried with
129 * _gtk_css_array_value_get_nth().
130 *
131 * Returns: (nullable): %NULL on failure or the parsed `GtkCssValue`
132 **/
133GtkCssValue *
134_gtk_style_property_parse_value (GtkStyleProperty *property,
135 GtkCssParser *parser)
136{
137 GtkStylePropertyClass *klass;
138
139 g_return_val_if_fail (GTK_IS_STYLE_PROPERTY (property), NULL);
140 g_return_val_if_fail (parser != NULL, NULL);
141
142 klass = GTK_STYLE_PROPERTY_GET_CLASS (property);
143
144 return klass->parse_value (property, parser);
145}
146
147void
148_gtk_style_property_init_properties (void)
149{
150 static gboolean initialized = FALSE;
151
152 if (G_LIKELY (initialized))
153 return;
154
155 initialized = TRUE;
156
157 _gtk_css_style_property_init_properties ();
158 /* initialize shorthands last, they depend on the real properties existing */
159 _gtk_css_shorthand_property_init_properties ();
160}
161
162/**
163 * _gtk_style_property_lookup:
164 * @name: name of the property to lookup
165 *
166 * Looks up the CSS property with the given @name. If no such
167 * property exists, %NULL is returned.
168 *
169 * Returns: (nullable) (transfer none): The property
170 */
171GtkStyleProperty *
172_gtk_style_property_lookup (const char *name)
173{
174 GtkStylePropertyClass *klass;
175
176 g_return_val_if_fail (name != NULL, NULL);
177
178 _gtk_style_property_init_properties ();
179
180 klass = g_type_class_peek (GTK_TYPE_STYLE_PROPERTY);
181
182 return g_hash_table_lookup (hash_table: klass->properties, key: name);
183}
184
185/**
186 * _gtk_style_property_get_name:
187 * @property: the property to query
188 *
189 * Gets the name of the given property.
190 *
191 * Returns: the name of the property
192 **/
193const char *
194_gtk_style_property_get_name (GtkStyleProperty *property)
195{
196 g_return_val_if_fail (GTK_IS_STYLE_PROPERTY (property), NULL);
197
198 return property->name;
199}
200

source code of gtk/gtk/gtkstyleproperty.c