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/*****************************************************************************
* *
* PrimeSense PSCommon Library *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of PSCommon. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* *
*****************************************************************************/
#ifndef _XN_PROPERTY_H_
#define _XN_PROPERTY_H_
#include "XnEvent.h"
namespace xnl
{
template <class T>
class Property
{
public:
#ifdef PROPERTY_CB_OLD_NEW
typedef void (XN_CALLBACK_TYPE*PropertyCallback)(const T& oldValue, const T& newValue, void* pCookie);
#elif defined(PROPERTY_CB_NEW)
typedef void (XN_CALLBACK_TYPE*PropertyCallback)(const T& newValue, void* pCookie);
#else
typedef void (XN_CALLBACK_TYPE*PropertyCallback)(void* pCookie);
#endif
Property(const T& defaultValue) : m_value(defaultValue)
{}
const T& Get() const
{
return m_value;
}
void Set(const T& value)
{
#ifdef PROPERTY_CB_OLD_NEW
const T& oldValue = m_value;
m_value = value;
m_valueChanged.Raise(oldValue, m_value);
#elif defined(PROPERTY_CB_NEW)
m_value = value;
m_valueChanged.Raise(m_value);
#else
m_value;
m_valueChanged.Raise();
#endif
}
XnStatus RegisterToChange(PropertyCallback callback, void* pCookie, XnCallbackHandle& handle)
{
return m_valueChanged.Register(callback, pCookie, handle);
}
void UnregisterFromChange(XnCallbackHandle handle)
{
m_valueChanged.Unregister(handle);
}
private:
// No copies, no empty
Property();
Property(const Property& other);
Property& operator=(const Property& other);
T m_value;
#ifdef PROPERTY_CB_OLD_NEW
Event2Arg<T, T> m_valueChanged; // const T& , const T& ??
#elif defined(PROPERTY_CB_NEW)
Event1Arg<T> m_valueChanged; // const T& ??
#else
EventNoArgs m_valueChanged;
#endif
};
} // xnl
#endif //_XN_PROPERTY_H_
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