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
  26 G_BEGIN_DECLS
  27
  28 #define GTK_TYPE_CSS_VALUE           (_gtk_css_value_get_type ())
  29
  30 /* A GtkCssValue is a refcounted immutable value type */
  31
  32 typedef struct _GtkCssValue           GtkCssValue;
  33 typedef struct _GtkCssValueClass      GtkCssValueClass;
  34
  35 /* using define instead of struct here so compilers get the packing right */
  36 #define GTK_CSS_VALUE_BASE \
  37   const GtkCssValueClass *class; \
  38   volatile gint ref_count;
  39
  40 struct _GtkCssValueClass {
  41   void          (* free)                              (GtkCssValue                *value);
  42
  43   GtkCssValue * (* compute)                           (GtkCssValue                *value,
  44                                                        guint                       property_id,
  45                                                        GtkStyleProviderPrivate    *provider,
  46                                                        GtkCssComputedValues       *values,
  47                                                        GtkCssComputedValues       *parent_values,
  48                                                        GtkCssDependencies         *dependencies);
  49   gboolean      (* equal)                             (const GtkCssValue          *value1,
  50                                                        const GtkCssValue          *value2);
  51   GtkCssValue * (* transition)                        (GtkCssValue                *start,
  52                                                        GtkCssValue                *end,
  53                                                        guint                       property_id,
  54                                                        double                      progress);
  55   void          (* print)                             (const GtkCssValue          *value,
  56                                                        GString                    *string);
  57 };
  58
  59 GType        _gtk_css_value_get_type                  (void) G_GNUC_CONST;
  60
  61 GtkCssValue *_gtk_css_value_alloc                     (const GtkCssValueClass     *klass,
  62                                                        gsize                       size);
  63 #define _gtk_css_value_new(_name, _klass) ((_name *) _gtk_css_value_alloc ((_klass), sizeof (_name)))
  64
  65 GtkCssValue *_gtk_css_value_ref                       (GtkCssValue                *value);
  66 void         _gtk_css_value_unref                     (GtkCssValue                *value);
  67
  68 GtkCssValue *_gtk_css_value_compute                   (GtkCssValue                *value,
  69                                                        guint                       property_id,
  70                                                        GtkStyleProviderPrivate    *provider,
  71                                                        GtkCssComputedValues       *values,
  72                                                        GtkCssComputedValues       *parent_values,
  73                                                        GtkCssDependencies         *dependencies);
  74 gboolean     _gtk_css_value_equal                     (const GtkCssValue          *value1,
  75                                                        const GtkCssValue          *value2);
  76 gboolean     _gtk_css_value_equal0                    (const GtkCssValue          *value1,
  77                                                        const GtkCssValue          *value2);
  78 GtkCssValue *_gtk_css_value_transition                (GtkCssValue                *start,
  79                                                        GtkCssValue                *end,
  80                                                        guint                       property_id,
  81                                                        double                      progress);
  82
  83 char *       _gtk_css_value_to_string                 (const GtkCssValue          *value);
  84 void         _gtk_css_value_print                     (const GtkCssValue          *value,
  85                                                        GString                    *string);
  86
  87 G_END_DECLS
  88
  89 #endif /* __GTK_CSS_VALUE_PRIVATE_H__ */