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cssstyleproperty: Make assign_value a vfunc
[~andy/gtk] / gtk / gtkcssstylepropertyprivate.h
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 #ifndef __GTK_CSS_STYLE_PROPERTY_PRIVATE_H__
21 #define __GTK_CSS_STYLE_PROPERTY_PRIVATE_H__
22
23 #include "gtk/gtkstylepropertyprivate.h"
24
25 G_BEGIN_DECLS
26
27 #define GTK_TYPE_CSS_STYLE_PROPERTY           (_gtk_css_style_property_get_type ())
28 #define GTK_CSS_STYLE_PROPERTY(obj)           (G_TYPE_CHECK_INSTANCE_CAST (obj, GTK_TYPE_CSS_STYLE_PROPERTY, GtkCssStyleProperty))
29 #define GTK_CSS_STYLE_PROPERTY_CLASS(cls)     (G_TYPE_CHECK_CLASS_CAST (cls, GTK_TYPE_CSS_STYLE_PROPERTY, GtkCssStylePropertyClass))
30 #define GTK_IS_CSS_STYLE_PROPERTY(obj)        (G_TYPE_CHECK_INSTANCE_TYPE (obj, GTK_TYPE_CSS_STYLE_PROPERTY))
31 #define GTK_IS_CSS_STYLE_PROPERTY_CLASS(obj)  (G_TYPE_CHECK_CLASS_TYPE (obj, GTK_TYPE_CSS_STYLE_PROPERTY))
32 #define GTK_CSS_STYLE_PROPERTY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CSS_STYLE_PROPERTY, GtkCssStylePropertyClass))
33
34 typedef struct _GtkCssStyleProperty           GtkCssStyleProperty;
35 typedef struct _GtkCssStylePropertyClass      GtkCssStylePropertyClass;
36
37 typedef GtkCssValue *    (* GtkCssStylePropertyParseFunc)  (GtkCssStyleProperty    *property,
38                                                             GtkCssParser           *parser,
39                                                             GFile                  *base);
40 typedef void             (* GtkCssStylePropertyPrintFunc)  (GtkCssStyleProperty    *property,
41                                                             const GtkCssValue      *value,
42                                                             GString                *string);
43 typedef GtkCssValue  *   (* GtkCssStylePropertyComputeFunc)(GtkCssStyleProperty    *property,
44                                                             GtkStyleContext        *context,
45                                                             GtkCssValue            *specified);
46 typedef void             (* GtkCssStylePropertyQueryFunc)  (GtkCssStyleProperty    *property,
47                                                             const GtkCssValue      *cssvalue,
48                                                             GValue                 *value);
49 typedef GtkCssValue *    (* GtkCssStylePropertyAssignFunc) (GtkCssStyleProperty    *property,
50                                                             const GValue           *value);
51 typedef gboolean         (* GtkCssStylePropertyEqualFunc)  (GtkCssStyleProperty    *property,
52                                                             GtkCssValue            *value1,
53                                                             GtkCssValue            *value2);
54 struct _GtkCssStyleProperty
55 {
56   GtkStyleProperty parent;
57
58   GtkCssValue *initial_value;
59   guint id;
60   guint inherit :1;
61
62   GtkCssStylePropertyParseFunc parse_value;
63   GtkCssStylePropertyPrintFunc print_value;
64   GtkCssStylePropertyComputeFunc compute_value;
65   GtkCssStylePropertyQueryFunc query_value;
66   GtkCssStylePropertyAssignFunc assign_value;
67   GtkCssStylePropertyEqualFunc equal_func;
68 };
69
70 struct _GtkCssStylePropertyClass
71 {
72   GtkStylePropertyClass parent_class;
73
74   GPtrArray *style_properties;
75 };
76
77 GType                   _gtk_css_style_property_get_type        (void) G_GNUC_CONST;
78
79 void                    _gtk_css_style_property_init_properties (void);
80
81 guint                   _gtk_css_style_property_get_n_properties(void);
82 GtkCssStyleProperty *   _gtk_css_style_property_lookup_by_id    (guint                   id);
83
84 gboolean                _gtk_css_style_property_is_inherit      (GtkCssStyleProperty    *property);
85 guint                   _gtk_css_style_property_get_id          (GtkCssStyleProperty    *property);
86 GtkCssValue  *          _gtk_css_style_property_get_initial_value
87                                                                 (GtkCssStyleProperty    *property);
88
89 GtkCssValue *           _gtk_css_style_property_compute_value   (GtkCssStyleProperty    *property,
90                                                                  GtkStyleContext        *context,
91                                                                  GtkCssValue            *specified);
92
93 void                    _gtk_css_style_property_print_value     (GtkCssStyleProperty    *property,
94                                                                  GtkCssValue            *value,
95                                                                  GString                *string);
96 gboolean                _gtk_css_style_property_is_equal        (GtkCssStyleProperty    *property,
97                                                                  GtkCssValue            *value1,
98                                                                  GtkCssValue            *value2);
99                                                                  
100
101 G_END_DECLS
102
103 #endif /* __GTK_CSS_STYLE_PROPERTY_PRIVATE_H__ */