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#ifndef CompositeEngine_h
#define CompositeEngine_h
/******************************************************************************
*
* Copyright (C) 2002 Hugo PEREIRA <mailto: hugo.pereira@free.fr>
*
* This is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* This software 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 General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
*******************************************************************************/
#include "NonCopyable.h"
namespace Transparency
{
//* initialize compositing, if available
class CompositeEngine: private Base::NonCopyable<CompositeEngine>
{
public:
//* singleton
static CompositeEngine& get();
//* availability
bool isAvailable()
{
_initialize();
return available_;
}
protected:
//* initialize
void _initialize();
//* returns true if composition is enabled
bool _compositingAvailable() const;
private:
//* constructor
explicit CompositeEngine();
//* validity
bool available_;
//* initialized
bool initialized_;
};
};
#endif
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