forked from AuroraMiddleware/gtk
146 lines
8.6 KiB
C
146 lines
8.6 KiB
C
/*
|
|
* Copyright © 2011 Red Hat Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Authors: Benjamin Otte <otte@gnome.org>
|
|
*/
|
|
|
|
#ifndef __GTK_CSS_IMAGE_PRIVATE_H__
|
|
#define __GTK_CSS_IMAGE_PRIVATE_H__
|
|
|
|
#include <cairo.h>
|
|
#include <glib-object.h>
|
|
|
|
#include "gtk/gtkcssparserprivate.h"
|
|
#include "gtk/gtkcsstypesprivate.h"
|
|
#include "gtk/gtksnapshot.h"
|
|
#include "gtk/gtkstyleprovider.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GTK_TYPE_CSS_IMAGE (_gtk_css_image_get_type ())
|
|
#define GTK_CSS_IMAGE(obj) (G_TYPE_CHECK_INSTANCE_CAST (obj, GTK_TYPE_CSS_IMAGE, GtkCssImage))
|
|
#define GTK_CSS_IMAGE_CLASS(cls) (G_TYPE_CHECK_CLASS_CAST (cls, GTK_TYPE_CSS_IMAGE, GtkCssImageClass))
|
|
#define GTK_IS_CSS_IMAGE(obj) (G_TYPE_CHECK_INSTANCE_TYPE (obj, GTK_TYPE_CSS_IMAGE))
|
|
#define GTK_IS_CSS_IMAGE_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE (obj, GTK_TYPE_CSS_IMAGE))
|
|
#define GTK_CSS_IMAGE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CSS_IMAGE, GtkCssImageClass))
|
|
|
|
typedef struct _GtkCssImage GtkCssImage;
|
|
typedef struct _GtkCssImageClass GtkCssImageClass;
|
|
|
|
struct _GtkCssImage
|
|
{
|
|
GObject parent;
|
|
};
|
|
|
|
struct _GtkCssImageClass
|
|
{
|
|
GObjectClass parent_class;
|
|
|
|
/* width of image or 0 if it has no width (optional) */
|
|
int (* get_width) (GtkCssImage *image);
|
|
/* height of image or 0 if it has no height (optional) */
|
|
int (* get_height) (GtkCssImage *image);
|
|
/* aspect ratio (width / height) of image or 0 if it has no aspect ratio (optional) */
|
|
double (* get_aspect_ratio) (GtkCssImage *image);
|
|
|
|
/* create "computed value" in CSS terms, returns a new reference */
|
|
GtkCssImage *(* compute) (GtkCssImage *image,
|
|
guint property_id,
|
|
GtkStyleProvider *provider,
|
|
GtkCssStyle *style,
|
|
GtkCssStyle *parent_style);
|
|
/* compare two images for equality */
|
|
gboolean (* equal) (GtkCssImage *image1,
|
|
GtkCssImage *image2);
|
|
/* transition between start and end image (end may be NULL), returns new reference (optional) */
|
|
GtkCssImage *(* transition) (GtkCssImage *start,
|
|
GtkCssImage *end,
|
|
guint property_id,
|
|
double progress);
|
|
|
|
/* draw to 0,0 with the given width and height */
|
|
void (* snapshot) (GtkCssImage *image,
|
|
GtkSnapshot *snapshot,
|
|
double width,
|
|
double height);
|
|
/* is this image to be considered invalid (see https://drafts.csswg.org/css-images-4/#invalid-image for details) */
|
|
gboolean (* is_invalid) (GtkCssImage *image);
|
|
/* does this image change based on timestamp? (optional) */
|
|
gboolean (* is_dynamic) (GtkCssImage *image);
|
|
/* get image for given timestamp or @image when not dynamic (optional) */
|
|
GtkCssImage *(* get_dynamic_image) (GtkCssImage *image,
|
|
gint64 monotonic_time);
|
|
/* parse CSS, return TRUE on success */
|
|
gboolean (* parse) (GtkCssImage *image,
|
|
GtkCssParser *parser);
|
|
/* print to CSS */
|
|
void (* print) (GtkCssImage *image,
|
|
GString *string);
|
|
};
|
|
|
|
GType _gtk_css_image_get_type (void) G_GNUC_CONST;
|
|
|
|
gboolean _gtk_css_image_can_parse (GtkCssParser *parser);
|
|
GtkCssImage * _gtk_css_image_new_parse (GtkCssParser *parser);
|
|
|
|
int _gtk_css_image_get_width (GtkCssImage *image);
|
|
int _gtk_css_image_get_height (GtkCssImage *image);
|
|
double _gtk_css_image_get_aspect_ratio (GtkCssImage *image);
|
|
|
|
GtkCssImage * _gtk_css_image_compute (GtkCssImage *image,
|
|
guint property_id,
|
|
GtkStyleProvider *provider,
|
|
GtkCssStyle *style,
|
|
GtkCssStyle *parent_style);
|
|
gboolean _gtk_css_image_equal (GtkCssImage *image1,
|
|
GtkCssImage *image2);
|
|
GtkCssImage * _gtk_css_image_transition (GtkCssImage *start,
|
|
GtkCssImage *end,
|
|
guint property_id,
|
|
double progress);
|
|
|
|
void _gtk_css_image_draw (GtkCssImage *image,
|
|
cairo_t *cr,
|
|
double width,
|
|
double height);
|
|
void gtk_css_image_snapshot (GtkCssImage *image,
|
|
GtkSnapshot *snapshot,
|
|
double width,
|
|
double height);
|
|
gboolean gtk_css_image_is_invalid (GtkCssImage *image);
|
|
gboolean gtk_css_image_is_dynamic (GtkCssImage *image);
|
|
GtkCssImage * gtk_css_image_get_dynamic_image (GtkCssImage *image,
|
|
gint64 monotonic_time);
|
|
void _gtk_css_image_print (GtkCssImage *image,
|
|
GString *string);
|
|
|
|
void _gtk_css_image_get_concrete_size (GtkCssImage *image,
|
|
double specified_width,
|
|
double specified_height,
|
|
double default_width,
|
|
double default_height,
|
|
double *concrete_width,
|
|
double *concrete_height);
|
|
cairo_surface_t *
|
|
_gtk_css_image_get_surface (GtkCssImage *image,
|
|
cairo_surface_t *target,
|
|
int surface_width,
|
|
int surface_height);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GTK_CSS_IMAGE_PRIVATE_H__ */
|