gecko-dev/gfx/thebes/public/gfxASurface.h

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Oracle Corporation code.
*
* The Initial Developer of the Original Code is Oracle Corporation.
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <pavlov@pavlov.net>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef GFX_ASURFACE_H
#define GFX_ASURFACE_H
#include <cairo.h>
// this key can be used to look up a Surface object given a cairo_surface_t
#ifdef CURRENT_VERSION_OF_CAIRO
static cairo_user_data_key_t gSurfaceMapKey;
#endif
class gfxASurface {
public:
// <insert refcount stuff here>
cairo_surface_t *CairoSurface() { return mSurface; }
static gfxASurface* LookupSurface(cairo_surface_t* surface) {
#ifdef CURRENT_VERSION_OF_CAIRO
return static_cast<gfxASurface*>(cairo_surface_get_user_data(surface, &gSurfaceMapKey));
#else
return 0;
#endif
}
protected:
void Init(cairo_surface_t* surface) {
mSurface = surface;
#ifdef CURRENT_VERSION_OF_CAIRO
cairo_surface_set_user_data(mSurface, &gSurfaceMapKey, static_cast<void*>(this), 0);
#endif
}
virtual ~gfxASurface() {
cairo_surface_destroy(mSurface);
}
private:
cairo_surface_t* mSurface;
};
#endif /* GFX_ASURFACE_H */