SO3CompositorLogic.h

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/*
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This source file is part of OpenSpace3D
For the latest info, see http://www.openspace3d.com
 
Copyright (c) 2012 I-maginer
 
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
 
This program 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 for more details.
 
You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt
 
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*/
 
#ifndef __SO3_COMPOSITOR_LOGIC_H__
#define __SO3_COMPOSITOR_LOGIC_H__
 
#include "SCOLBasic/SO3Prerequisites.h"
#include "OgreCompositorLogic.h"
 
namespace SO3
{
 
class SCompositorListenerFactoryLogic : public Ogre::CompositorLogic
{
public:
  virtual void compositorInstanceCreated(Ogre::CompositorInstance* newInstance) 
        {
                Ogre::CompositorInstance::Listener* listener = createListener(newInstance);
                newInstance->addListener(listener);
                mListeners[newInstance] = listener;
        }
        
        virtual void compositorInstanceDestroyed(Ogre::CompositorInstance* destroyedInstance)
        {
    destroyedInstance->removeListener(mListeners[destroyedInstance]);
                delete mListeners[destroyedInstance];
                mListeners.erase(destroyedInstance);
        }
protected:
  //This is the method that implementations will need to override
        virtual Ogre::CompositorInstance::Listener* createListener(Ogre::CompositorInstance* instance) = 0;
private:
  typedef std::map<Ogre::CompositorInstance*, Ogre::CompositorInstance::Listener*> ListenerMap;
        ListenerMap mListeners;
 
};
 
}
 
#endif