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/*****************************************************************************
* *
* OpenNI 2.x Alpha *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of OpenNI. *
* *
* 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. *
* *
*****************************************************************************/
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "XnIntPropertySynchronizer.h"
//---------------------------------------------------------------------------
// Types
//---------------------------------------------------------------------------
class XnIntSynchronizerCookie
{
public:
XnIntSynchronizerCookie(XnIntProperty* pSource, XnIntProperty* pDestination, XnIntPropertyConvertCallback pConvertFunc) :
pSource(pSource), pDestination(pDestination), pConvertFunc(pConvertFunc)
{}
XnIntProperty* pSource;
XnIntProperty* pDestination;
XnIntPropertyConvertCallback pConvertFunc;
XnCallbackHandle hCallback;
};
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
XnIntPropertySynchronizer::XnIntPropertySynchronizer()
{
}
XnIntPropertySynchronizer::~XnIntPropertySynchronizer()
{
for (CookiesList::Iterator it = m_Cookies.Begin(); it != m_Cookies.End(); ++it)
{
XnIntSynchronizerCookie* pSynchData = (XnIntSynchronizerCookie*)*it;
pSynchData->pSource->OnChangeEvent().Unregister(pSynchData->hCallback);
XN_DELETE(pSynchData);
}
}
XnStatus XN_CALLBACK_TYPE IntPropertyValueChangedCallback(const XnProperty* pSender, void* pCookie)
{
XnStatus nRetVal = XN_STATUS_OK;
// get the property current value
XnIntProperty* pIntProp = (XnIntProperty*)pSender;
XnUInt64 nNewValue;
nRetVal = pIntProp->GetValue(&nNewValue);
XN_IS_STATUS_OK(nRetVal);
XnIntSynchronizerCookie* pSynchData = (XnIntSynchronizerCookie*)pCookie;
XnUInt64 nDestValue;
// convert the value if needed
if (pSynchData->pConvertFunc != NULL)
{
nRetVal = pSynchData->pConvertFunc(nNewValue, &nDestValue);
XN_IS_STATUS_OK(nRetVal);
}
else
{
nDestValue = nNewValue;
}
// now set the new value
nRetVal = pSynchData->pDestination->UnsafeUpdateValue(nDestValue);
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
XnStatus XnIntPropertySynchronizer::RegisterSynchronization(XnIntProperty* pSource, XnIntProperty* pDestination, XnIntPropertyConvertCallback pConvertFunc /* = NULL */)
{
XnStatus nRetVal = XN_STATUS_OK;
XnIntSynchronizerCookie* pCookie;
XN_VALIDATE_NEW(pCookie, XnIntSynchronizerCookie, pSource, pDestination, pConvertFunc);
nRetVal = m_Cookies.AddFirst(pCookie);
if (nRetVal != XN_STATUS_OK)
{
XN_DELETE(pCookie);
return (nRetVal);
}
nRetVal = pSource->OnChangeEvent().Register(IntPropertyValueChangedCallback, pCookie, pCookie->hCallback);
if (nRetVal != XN_STATUS_OK)
{
XN_DELETE(pCookie);
m_Cookies.Remove(m_Cookies.Begin());
return (nRetVal);
}
return (XN_STATUS_OK);
}
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