Pileus Git - ~andy/gtk/blob - gtk/gtkcssvalueprivate.h

   1 /*
   2  * Copyright © 2012 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: Alexander Larsson <alexl@gnome.org>
  18  */
  19
  20 #ifndef __GTK_CSS_VALUE_PRIVATE_H__
  21 #define __GTK_CSS_VALUE_PRIVATE_H__
  22
  23 #include <glib-object.h>
  24 #include "gtkcsstypesprivate.h"
  25 #include "gtksymboliccolor.h"
  26
  27 G_BEGIN_DECLS
  28
  29 #define GTK_TYPE_CSS_VALUE           (_gtk_css_value_get_type ())
  30 #define GTK_CSS_VALUE(obj)           (G_TYPE_CHECK_INSTANCE_CAST (obj, GTK_TYPE_CSS_VALUE, GtkCssValue))
  31 #define GTK_CSS_VALUE_CLASS(cls)     (G_TYPE_CHECK_CLASS_CAST (cls, GTK_TYPE_CSS_VALUE, GtkCssValueClass))
  32 #define GTK_IS_CSS_VALUE(obj)        (G_TYPE_CHECK_INSTANCE_TYPE (obj, GTK_TYPE_CSS_VALUE))
  33 #define GTK_IS_CSS_VALUE_CLASS(obj)  (G_TYPE_CHECK_CLASS_TYPE (obj, GTK_TYPE_CSS_VALUE))
  34 #define GTK_CSS_VALUE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CSS_VALUE, GtkCssValueClass))
  35
  36 /* A GtkCssValue is a refcounted immutable value type */
  37
  38 typedef struct _GtkCssValue           GtkCssValue;
  39 typedef struct _GtkCssValueClass      GtkCssValueClass;
  40
  41 /* using define instead of struct here so compilers get the packing right */
  42 #define GTK_CSS_VALUE_BASE \
  43   const GtkCssValueClass *class; \
  44   volatile gint ref_count;
  45
  46 struct _GtkCssValueClass {
  47   void          (* free)                              (GtkCssValue                *value);
  48
  49   gboolean      (* equal)                             (const GtkCssValue          *value1,
  50                                                        const GtkCssValue          *value2);
  51   GtkCssValue * (* transition)                        (GtkCssValue                *start,
  52                                                        GtkCssValue                *end,
  53                                                        double                      progress);
  54   void          (* print)                             (const GtkCssValue          *value,
  55                                                        GString                    *string);
  56 };
  57
  58 GType        _gtk_css_value_get_type                  (void) G_GNUC_CONST;
  59
  60 GtkCssValue *_gtk_css_value_alloc                     (const GtkCssValueClass     *klass,
  61                                                        gsize                       size);
  62 #define _gtk_css_value_new(_name, _klass) ((_name *) _gtk_css_value_alloc ((_klass), sizeof (_name)))
  63
  64 GtkCssValue *_gtk_css_value_ref                       (GtkCssValue                *value);
  65 void         _gtk_css_value_unref                     (GtkCssValue                *value);
  66
  67 gboolean     _gtk_css_value_equal                     (const GtkCssValue          *value1,
  68                                                        const GtkCssValue          *value2);
  69 gboolean     _gtk_css_value_equal0                    (const GtkCssValue          *value1,
  70                                                        const GtkCssValue          *value2);
  71 GtkCssValue *_gtk_css_value_transition                (GtkCssValue                *start,
  72                                                        GtkCssValue                *end,
  73                                                        double                      progress);
  74
  75 char *       _gtk_css_value_to_string                 (const GtkCssValue          *value);
  76 void         _gtk_css_value_print                     (const GtkCssValue          *value,
  77                                                        GString                    *string);
  78
  79 G_END_DECLS
  80
  81 #endif /* __GTK_CSS_VALUE_PRIVATE_H__ */