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 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 GtkCssStyle *style, 47 GtkCssStyle *parent_style); 48 gboolean (* equal) (const GtkCssValue *value1, 49 const GtkCssValue *value2); 50 GtkCssValue * (* transition) (GtkCssValue *start, 51 GtkCssValue *end, 52 guint property_id, 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 GtkCssValue *_gtk_css_value_compute (GtkCssValue *value, 68 guint property_id, 69 GtkStyleProviderPrivate *provider, 70 GtkCssStyle *style, 71 GtkCssStyle *parent_style); 72 gboolean _gtk_css_value_equal (const GtkCssValue *value1, 73 const GtkCssValue *value2); 74 gboolean _gtk_css_value_equal0 (const GtkCssValue *value1, 75 const GtkCssValue *value2); 76 GtkCssValue *_gtk_css_value_transition (GtkCssValue *start, 77 GtkCssValue *end, 78 guint property_id, 79 double progress); 80 81 char * _gtk_css_value_to_string (const GtkCssValue *value); 82 void _gtk_css_value_print (const GtkCssValue *value, 83 GString *string); 84 85 G_END_DECLS 86 87 #endif /* __GTK_CSS_VALUE_PRIVATE_H__ */ 88