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/*************************************************************************
*
* 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 INCLUDED_CANVAS_BASEMUTEXHELPER_HXX
#define INCLUDED_CANVAS_BASEMUTEXHELPER_HXX
#include <osl/mutex.hxx>
/* Definition of the BaseMutexHelper class */
namespace canvas
{
/** Base class, deriving from ::comphelper::OBaseMutex and
initializing its own baseclass with m_aMutex.
This is necessary to make the CanvasBase, GraphicDeviceBase,
etc. classes freely combinable - letting them perform this
initialization would prohibit deriving e.g. CanvasBase from
GraphicDeviceBase.
*/
template< class Base > class BaseMutexHelper : public Base
{
public:
typedef Base BaseType;
/** Construct BaseMutexHelper
This method is the whole purpose of this template:
initializing a base class with the provided m_aMutex
member (the WeakComponentImplHelper templates need that,
as they require the lifetime of the mutex to extend
theirs).
*/
BaseMutexHelper() :
BaseType( m_aMutex )
{
}
protected:
mutable ::osl::Mutex m_aMutex;
};
}
#endif /* INCLUDED_CANVAS_BASEMUTEXHELPER_HXX */
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