2a8e1745cf
Keep a copy of the scaled image to speed up rendering multiple times the image at the same size.
60 lines
2.5 KiB
C
60 lines
2.5 KiB
C
/*
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* Copyright © 2011 Red Hat Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#ifndef __GTK_CSS_IMAGE_SURFACE_PRIVATE_H__
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#define __GTK_CSS_IMAGE_SURFACE_PRIVATE_H__
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#include "gtk/gtkcssimageprivate.h"
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G_BEGIN_DECLS
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#define GTK_TYPE_CSS_IMAGE_SURFACE (_gtk_css_image_surface_get_type ())
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#define GTK_CSS_IMAGE_SURFACE(obj) (G_TYPE_CHECK_INSTANCE_CAST (obj, GTK_TYPE_CSS_IMAGE_SURFACE, GtkCssImageSurface))
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#define GTK_CSS_IMAGE_SURFACE_CLASS(cls) (G_TYPE_CHECK_CLASS_CAST (cls, GTK_TYPE_CSS_IMAGE_SURFACE, GtkCssImageSurfaceClass))
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#define GTK_IS_CSS_IMAGE_SURFACE(obj) (G_TYPE_CHECK_INSTANCE_TYPE (obj, GTK_TYPE_CSS_IMAGE_SURFACE))
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#define GTK_IS_CSS_IMAGE_SURFACE_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE (obj, GTK_TYPE_CSS_IMAGE_SURFACE))
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#define GTK_CSS_IMAGE_SURFACE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CSS_IMAGE_SURFACE, GtkCssImageSurfaceClass))
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typedef struct _GtkCssImageSurface GtkCssImageSurface;
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typedef struct _GtkCssImageSurfaceClass GtkCssImageSurfaceClass;
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struct _GtkCssImageSurface
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{
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GtkCssImage parent;
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cairo_surface_t *surface; /* the surface we render - guaranteed to be an image surface */
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cairo_surface_t *cache; /* the scaled surface - to avoid scaling every time we need to draw */
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double width; /* original cache width */
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double height; /* original cache height */
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};
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struct _GtkCssImageSurfaceClass
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{
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GtkCssImageClass parent_class;
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};
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GType _gtk_css_image_surface_get_type (void) G_GNUC_CONST;
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GtkCssImage * _gtk_css_image_surface_new (cairo_surface_t *surface);
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GtkCssImage * _gtk_css_image_surface_new_for_pixbuf (GdkPixbuf *pixbuf);
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G_END_DECLS
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#endif /* __GTK_CSS_IMAGE_SURFACE_PRIVATE_H__ */
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