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Diffstat (limited to 'canvas/source/vcl/outdevprovider.hxx')
-rw-r--r-- | canvas/source/vcl/outdevprovider.hxx | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/canvas/source/vcl/outdevprovider.hxx b/canvas/source/vcl/outdevprovider.hxx new file mode 100644 index 000000000000..dd5f870c7d9c --- /dev/null +++ b/canvas/source/vcl/outdevprovider.hxx @@ -0,0 +1,61 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _VCLCANVAS_OUTDEVPROVIDER_HXX +#define _VCLCANVAS_OUTDEVPROVIDER_HXX + +#include <sal/types.h> +#include <boost/shared_ptr.hpp> + + +class OutputDevice; + +namespace vclcanvas +{ + /* Definition of OutDevProvider interface */ + + /** Implementers of this interface provide the CanvasHelper + with its OutputDevice. + + This additional level of indirection was necessary, as the + OutputDevice is not an interface. There had to be a mechanism + to detect the moment when an OutputDevice is rendered to + (e.g. for the BitmapBackBuffer). + */ + class OutDevProvider + { + public: + virtual ~OutDevProvider() {} + + virtual OutputDevice& getOutDev() = 0; + virtual const OutputDevice& getOutDev() const = 0; + }; + + typedef ::boost::shared_ptr< OutDevProvider > OutDevProviderSharedPtr; +} + +#endif /* _VCLCANVAS_OUTDEVPROVIDER_HXX */ |