gecko-dev/gfx/thebes/gfxTeeSurface.h

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2012-05-21 11:12:37 +00:00
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GFX_TEESURFACE_H
#define GFX_TEESURFACE_H
#include "gfxASurface.h"
#include "nsTArrayForwardDeclare.h"
#include "nsSize.h"
template<class T> class nsRefPtr;
/**
* Wraps a cairo_tee_surface. The first surface in the surface list is the
* primary surface, which answers all surface queries (including size).
* All drawing is performed on all the surfaces.
*
* The device transform of a tee surface is applied before drawing to the
* underlying surfaces --- which also applies the device transforms of the
* underlying surfaces.
*/
class gfxTeeSurface : public gfxASurface {
public:
gfxTeeSurface(cairo_surface_t *csurf);
gfxTeeSurface(gfxASurface **aSurfaces, int32_t aSurfaceCount);
virtual const gfxIntSize GetSize() const;
/**
* Returns the list of underlying surfaces.
*/
void GetSurfaces(nsTArray<nsRefPtr<gfxASurface> > *aSurfaces);
};
#endif /* GFX_TEESURFACE_H */