XnVPointControl.h

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/*******************************************************************************
*                                                                              *
*   PrimeSense NITE 1.3                                                        *
*   Copyright (C) 2010 PrimeSense Ltd.                                         *
*                                                                              *
*******************************************************************************/


#ifndef _XNV_POINT_CONTROL_H_
#define _XNV_POINT_CONTROL_H_

#include "XnVMessageListener.h"
#include "XnVMultipleHands.h"

class XnEvent;
class XnVHandPointContextSpecificEvent;
class XnVMultipleHandsSpecificEvent;
class XnVHandPointContextPointSpecificEvent;
class XnVUintHandPointContextSpecificEvent;
class XnVUintSpecificEvent;

class XNV_NITE_API XnVPointControl :
    public XnVMessageListener
{
public:
    typedef void (XN_CALLBACK_TYPE*PointCreateCB)(const XnVHandPointContext* pContext, void* cxt);
    typedef void (XN_CALLBACK_TYPE*PointUpdateCB)(const XnVHandPointContext* pContext, void* cxt);
    typedef void (XN_CALLBACK_TYPE*PointDestroyCB)(XnUInt32 nID, void* cxt);

    typedef void (XN_CALLBACK_TYPE*PrimaryPointCreateCB)(const XnVHandPointContext* pContext, const XnPoint3D& ptFocus, void* cxt);
    typedef void (XN_CALLBACK_TYPE*PrimaryPointUpdateCB)(const XnVHandPointContext* pContext, void* cxt);
    typedef void (XN_CALLBACK_TYPE*PrimaryPointReplaceCB)(XnUInt32 nOldId, const XnVHandPointContext* pContext, void* cxt);
    typedef void (XN_CALLBACK_TYPE*PrimaryPointDestroyCB)(XnUInt32 nID, void* cxt);

    typedef void (XN_CALLBACK_TYPE*NoPointsCB)(void* cxt);

    typedef void (XN_CALLBACK_TYPE*HandsUpdateCB)(const XnVMultipleHands& mh, void* cxt);

    XnVPointControl(const XnChar* strName = "XnVPointControl");
    ~XnVPointControl();
    void Update(XnVMessage* pMessage);
    virtual void Update(const XnVMultipleHands& hands);

    virtual void OnPointCreate(const XnVHandPointContext* pContext) {}
    virtual void OnPointUpdate(const XnVHandPointContext* pContext) {}
    virtual void OnPointDestroy(XnUInt32 nID) {}

    virtual void OnPrimaryPointCreate(const XnVHandPointContext* pContext, const XnPoint3D& ptSessionStarter) {}
    virtual void OnPrimaryPointUpdate(const XnVHandPointContext* pContext) {}
    virtual void OnPrimaryPointReplace(XnUInt32 nOldId, const XnVHandPointContext* pContext) {}
    virtual void OnPrimaryPointDestroy(XnUInt32 nID) {}

    virtual void OnNoPoints() {}

    XnCallbackHandle RegisterPointCreate(void* cxt, PointCreateCB CB);
    XnCallbackHandle RegisterPointUpdate(void* cxt, PointUpdateCB CB);
    XnCallbackHandle RegisterPointDestroy(void* cxt, PointDestroyCB CB);

    XnCallbackHandle RegisterPrimaryPointCreate(void* cxt, PrimaryPointCreateCB CB);
    XnCallbackHandle RegisterPrimaryPointUpdate(void* cxt, PrimaryPointUpdateCB CB);
    XnCallbackHandle RegisterPrimaryPointReplace(void* cxt, PrimaryPointReplaceCB CB);
    XnCallbackHandle RegisterPrimaryPointDestroy(void* cxt, PrimaryPointDestroyCB CB);
    XnCallbackHandle RegisterNoPoints(void* cxt, NoPointsCB CB);

    XnCallbackHandle RegisterHandsUpdate(void* cxt, HandsUpdateCB CB);

    void UnregisterPointCreate(XnCallbackHandle hCB);
    void UnregisterPointUpdate(XnCallbackHandle hCB);
    void UnregisterPointDestroy(XnCallbackHandle hCB);

    void UnregisterPrimaryPointCreate(XnCallbackHandle hCB);
    void UnregisterPrimaryPointUpdate(XnCallbackHandle hCB);
    void UnregisterPrimaryPointReplace(XnCallbackHandle hCB);
    void UnregisterPrimaryPointDestroy(XnCallbackHandle hCB);
    void UnregisterNoPoints(XnCallbackHandle hCB);

    void UnregisterHandsUpdate(XnCallbackHandle hCB);

    XnUInt32 GetPrimaryID() const;
private:
    XnVHandPointContextSpecificEvent* m_pPointCreateCBs;
    XnVHandPointContextSpecificEvent* m_pPointUpdateCBs;
    XnVUintSpecificEvent* m_pPointDestroyCBs;

    XnVHandPointContextPointSpecificEvent* m_pPrimaryPointCreateCBs;
    XnVHandPointContextSpecificEvent* m_pPrimaryPointUpdateCBs;
    XnVUintHandPointContextSpecificEvent* m_pPrimaryPointReplaceCBs;
    XnVUintSpecificEvent* m_pPrimaryPointDestroyCBs;

    XnVEvent* m_pNoPointsCBs;

    XnVMultipleHandsSpecificEvent* m_pHandsUpdateCBs;

    XnUInt32 m_nPrimaryID;
protected:
    XnUInt32 m_nOverridePrimary;
};

#endif