khanat-opennel-code/code/nel/include/nel/sound/group_controller.h
2012-04-16 01:31:21 +02:00

102 lines
2.6 KiB
C++

/**
* \file group_controller.h
* \brief CGroupController
* \date 2012-04-10 09:29GMT
* \author Jan Boon (Kaetemi)
* CGroupController
*/
/*
* Copyright (C) 2012 by authors
*
* This file is part of RYZOM CORE.
* RYZOM CORE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* RYZOM CORE 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
* Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with RYZOM CORE. If not, see
* <http://www.gnu.org/licenses/>.
*/
#ifndef NLSOUND_GROUP_CONTROLLER_H
#define NLSOUND_GROUP_CONTROLLER_H
#include <nel/misc/types_nl.h>
// STL includes
#include <string>
#include <map>
// NeL includes
#include <nel/misc/common.h>
#include <nel/sound/u_group_controller.h>
#include <nel/sound/containers.h>
// Project includes
namespace NLSOUND {
class CGroupControllerRoot;
/**
* \brief CGroupController
* \date 2012-04-10 09:29GMT
* \author Jan Boon (Kaetemi)
* CGroupController
*/
class CGroupController : public UGroupController
{
public:
friend class CGroupControllerRoot;
private:
CGroupController *m_Parent;
std::map<std::string, CGroupController *> m_Children;
/// Gain as set by the interface
float m_Gain;
/// Gain including parent gain
float m_FinalGain;
int m_NbSourcesInclChild;
TSourceContainer m_Sources;
public:
CGroupController(CGroupController *parent);
/// \name UGroupController
//@{
virtual void setGain(float gain) { NLMISC::clamp(gain, 0.0f, 1.0f); if (m_Gain != gain) { m_Gain = gain; updateSourceGain(); } }
virtual float getGain() { return m_Gain; }
//@}
inline float getFinalGain() const { return m_FinalGain; }
void addSource(CSourceCommon *source);
void removeSource(CSourceCommon *source);
virtual std::string getPath();
protected:
virtual ~CGroupController(); // subnodes can only be deleted by the root
private:
inline float calculateTotalGain() { return m_Gain; }
virtual void calculateFinalGain();
virtual void increaseSources();
virtual void decreaseSources();
void updateSourceGain();
}; /* class CGroupController */
} /* namespace NLSOUND */
#endif /* #ifndef NLSOUND_GROUP_CONTROLLER_H */
/* end of file */