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/****************************************************************************
* *
* OpenNI 1.x Alpha *
* Copyright (C) 2011 PrimeSense Ltd. *
* *
* This file is part of OpenNI. *
* *
* OpenNI 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 3 of the License, or *
* (at your option) any later version. *
* *
* OpenNI 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 OpenNI. If not, see <http://www.gnu.org/licenses/>. *
* *
****************************************************************************/
#ifndef XNV_TRACKING_INITIALIZER_H_
#define XNV_TRACKING_INITIALIZER_H_
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include <XnCppWrapper.h>
#include "UserSelector.h"
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
/// @brief Class to start tracking a user
///
/// The goal of this class is to start performing the actual tracking of a user. It returns the
/// results to the UserSelector which called it.
/// @ingroup UserSelectionInitializers
class TrackingInitializer
{
public:
/// @brief Method to start the tracking process
///
/// This method is called when we want to track a specific user and it starts the process.
/// @param nUserId The user to track
/// @param bForce If this is true then the tracking will forget all previous tracking information
/// @return The success status
virtual XnStatus StartTracking(XnUserID nUserId, XnBool bForce)=0;
/// @brief Method to stop tracking a user
///
/// @param nUserId The user to stop track
/// @return The success status
virtual XnStatus AbortTracking(XnUserID nUserId)=0;
/// @brief Returns true if the Tracking Initializer is valid and false otherwise.
XnBool IsValid() { return m_bValid; };
/// @brief Sets the user selector to use to send feedback on tracking progress.
///
/// @note This will fail if the user selector is not NULL before setting.
/// @param pUserSelector The user selector
/// @return success status
virtual XnStatus SetUserTracker(UserSelector *pUserSelector);
/// @brief Destructor
virtual ~TrackingInitializer();
protected:
/// @brief Constructor
///
/// @param pUserGenerator The user selector to update
TrackingInitializer(xn::UserGenerator *pUserGenerator);
UserSelector *m_pUserSelector; ///< @brief The user selector to update
xn::UserGenerator *m_pUserGenerator; ///< @brief The user generator which holds the users
XnBool m_bValid; ///< @brief True if the Tracking Initializer is valid and false otherwise
};
#endif // XNV_TRACKING_INITIALIZER_H_
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