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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_POSE_USER_SELECTOR_H_
#define XNV_POSE_USER_SELECTOR_H_
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "UserSelector.h"
#include "TrackingInitializer.h"
#include <XnHashT.h>
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
/// @brief User selector based on pose
///
/// This basic user selector select users which perform a certain pose.
/// The pose is define in initialization.
/// The base class selects all users which perform the pose but inheriting classes can override this
/// behavior by using the ForgetTracking method.
/// @ingroup UserSelectionPoseSelectors
class PoseUserSelector : public UserSelector
{
public:
/// @brief constructor.
///
/// @param pUserGenerator A pointer to the user generator node which holds the users.
/// @param pTrackingInitializer A pointer to the tracking initializer to use to start tracking.
/// @param poseToTrack The pose to use for selection.
PoseUserSelector(xn::UserGenerator *pUserGenerator,TrackingInitializer *pTrackingInitializer, const char *poseToTrack);
/// @brief destructor.
~PoseUserSelector();
protected:
/// @brief Internal method to do the actual tracking.
///
/// This method is called internally when we decide to track a user. It does all tracking elements.
/// @param nUserId The user we want to start tracking.
/// @return The success status
virtual XnStatus StartTracking(XnUserID nUserId);
// override the base AddNewUser (calls the base too)
virtual XnStatus AddNewUser(XnUserID nUserId);
// override the base AddNewUser (calls the base too)
virtual XnStatus RemoveUser(XnUserID nUserId);
/// @brief Internal method which is called whenever a PoseInProgressCallback callback is called.
///
/// @param nUserId the user whose pose progress is being updated
/// @param ePoseError the pose error (representing the pose progress) for the user
/// @return The success code.
virtual XnStatus UpdatePoseProgress(XnUserID nUserId,XnPoseDetectionStatus ePoseError);
/// @brief Internal method which is called from the callback whenever a Pose is detected.
///
/// @param nUserId the user whose pose progress was detected
/// @return The success code.
virtual XnStatus DetectPose(XnUserID nUserId);
/// @brief translate a calibration error to a string
///
/// @param eError The calibration error
/// @return The string version of the error.
const XnChar* GetPoseErrorString(XnPoseDetectionStatus eError);
TrackingInitializer *m_pTrackingInitializer; ///< @brief The tracking initializer used to start tracking
XnCallbackHandle m_hPoseInProgressCallback; ///< @brief A handle to unregister the pose in progress callbacks.
XnCallbackHandle m_hPoseDetectCallback; ///< @brief A handle to unregister pose detection callbacks
char *m_strPoseToTrack; ///< @brief The pose used for selection
private:
/// @brief Callback for in progress updates of the pose
static void XN_CALLBACK_TYPE PoseInProgressCallback(xn::PoseDetectionCapability& capability, const XnChar* strPose, XnUserID nUserId, XnPoseDetectionStatus ePoseError, void* pCookie);
/// @brief Callback for pose detection
static void XN_CALLBACK_TYPE PoseDetectedCallback(xn::PoseDetectionCapability& capability, const XnChar* strPose, XnUserID nUserId, void* pCookie);
};
#endif // XNV_POSE_USER_SELECTOR_H_
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