2 * Copyright © 2011 Red Hat Inc.
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.
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.
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/>.
17 * Authors: Benjamin Otte <otte@gnome.org>
20 #ifndef __GTK_CSS_IMAGE_PRIVATE_H__
21 #define __GTK_CSS_IMAGE_PRIVATE_H__
24 #include <glib-object.h>
26 #include "gtk/gtkcssparserprivate.h"
27 #include "gtk/gtkcsstypesprivate.h"
31 #define GTK_TYPE_CSS_IMAGE (_gtk_css_image_get_type ())
32 #define GTK_CSS_IMAGE(obj) (G_TYPE_CHECK_INSTANCE_CAST (obj, GTK_TYPE_CSS_IMAGE, GtkCssImage))
33 #define GTK_CSS_IMAGE_CLASS(cls) (G_TYPE_CHECK_CLASS_CAST (cls, GTK_TYPE_CSS_IMAGE, GtkCssImageClass))
34 #define GTK_IS_CSS_IMAGE(obj) (G_TYPE_CHECK_INSTANCE_TYPE (obj, GTK_TYPE_CSS_IMAGE))
35 #define GTK_IS_CSS_IMAGE_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE (obj, GTK_TYPE_CSS_IMAGE))
36 #define GTK_CSS_IMAGE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CSS_IMAGE, GtkCssImageClass))
38 typedef struct _GtkCssImage GtkCssImage;
39 typedef struct _GtkCssImageClass GtkCssImageClass;
46 struct _GtkCssImageClass
48 GObjectClass parent_class;
50 /* width of image or 0 if it has no width (optional) */
51 int (* get_width) (GtkCssImage *image);
52 /* height of image or 0 if it has no height (optional) */
53 int (* get_height) (GtkCssImage *image);
54 /* aspect ratio (width / height) of image or 0 if it has no aspect ratio (optional) */
55 double (* get_aspect_ratio) (GtkCssImage *image);
57 /* create "computed value" in CSS terms, returns a new reference */
58 GtkCssImage *(* compute) (GtkCssImage *image,
60 GtkStyleProviderPrivate *provider,
61 GtkCssComputedValues *values,
62 GtkCssComputedValues *parent_values,
63 GtkCssDependencies *dependencies);
64 /* compare two images for equality */
65 gboolean (* equal) (GtkCssImage *image1,
67 /* transition between start and end image (end may be NULL), returns new reference */
68 GtkCssImage *(* transition) (GtkCssImage *start,
73 /* draw to 0,0 with the given width and height */
74 void (* draw) (GtkCssImage *image,
78 /* parse CSS, return TRUE on success */
79 gboolean (* parse) (GtkCssImage *image,
80 GtkCssParser *parser);
82 void (* print) (GtkCssImage *image,
86 GType _gtk_css_image_get_type (void) G_GNUC_CONST;
88 gboolean _gtk_css_image_can_parse (GtkCssParser *parser);
89 GtkCssImage * _gtk_css_image_new_parse (GtkCssParser *parser);
91 int _gtk_css_image_get_width (GtkCssImage *image);
92 int _gtk_css_image_get_height (GtkCssImage *image);
93 double _gtk_css_image_get_aspect_ratio (GtkCssImage *image);
95 GtkCssImage * _gtk_css_image_compute (GtkCssImage *image,
97 GtkStyleProviderPrivate *provider,
98 GtkCssComputedValues *values,
99 GtkCssComputedValues *parent_values,
100 GtkCssDependencies *dependencies);
101 gboolean _gtk_css_image_equal (GtkCssImage *image1,
102 GtkCssImage *image2);
103 GtkCssImage * _gtk_css_image_transition (GtkCssImage *start,
108 void _gtk_css_image_draw (GtkCssImage *image,
112 void _gtk_css_image_print (GtkCssImage *image,
115 void _gtk_css_image_get_concrete_size (GtkCssImage *image,
116 double specified_width,
117 double specified_height,
118 double default_width,
119 double default_height,
120 double *concrete_width,
121 double *concrete_height);
123 _gtk_css_image_get_surface (GtkCssImage *image,
124 cairo_surface_t *target,
130 #endif /* __GTK_CSS_IMAGE_PRIVATE_H__ */