fbxmanipulators.h

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/****************************************************************************************
 
   Copyright (C) 2015 Autodesk, Inc.
   All rights reserved.
 
   Use of this software is subject to the terms of the Autodesk license agreement
   provided at the time of installation or download, or which otherwise accompanies
   this software in either electronic or hard copy form.
 
****************************************************************************************/

#ifndef _FBXSDK_UTILS_MANIPULATORS_H_
#define _FBXSDK_UTILS_MANIPULATORS_H_

#include <fbxsdk/fbxsdk_def.h>

#include <fbxsdk/core/fbxobject.h>
#include <fbxsdk/core/math/fbxvector2.h>
#include <fbxsdk/core/math/fbxvector4.h>
#include <fbxsdk/scene/geometry/fbxcamera.h>

#include <fbxsdk/fbxsdk_nsbegin.h>

class FbxCameraManipulationState;

class FBXSDK_DLL FbxCameraManipulator : public FbxObject
{
    FBXSDK_OBJECT_DECLARE(FbxCameraManipulator, FbxObject);

public:
    enum EAction
    {
        eNone,      
        eOrbit,     
        eDolly,     
        ePan,       
        eFreePan    
    };

    void Begin(EAction pAction, float pX, float pY);

    void Notify(float pX, float pY, float pScale=0);

    void End();

    void Update(const FbxTime& pTimeDelta=FBXSDK_TIME_ZERO);

    void Action(EAction pAction, float pX, float pY, float pScale=0);

    EAction GetCurrentAction() const;

    void FrameAll(const FbxTime& pTime=FBXSDK_TIME_INFINITE);

    void FrameSelected(const FbxTime& pTime=FBXSDK_TIME_INFINITE);

    void FrameScreenPosition(float pX, float pY, bool pCulling=false, const FbxTime& pTime=FBXSDK_TIME_INFINITE);

    FbxPropertyT<FbxReference> Camera;

    FbxPropertyT<FbxFloat> ViewportWidth;

    FbxPropertyT<FbxFloat> ViewportHeight;

    FbxPropertyT<FbxBool> Smooth;

    FbxPropertyT<FbxDouble> SmoothSpeed;

    FbxPropertyT<FbxBool> InvertX;

    FbxPropertyT<FbxBool> InvertY;

    FbxPropertyT<FbxBool> Restore;

/*****************************************************************************************************************************
** WARNING! Anything beyond these lines is for internal use, may not be documented and is subject to change without notice! **
*****************************************************************************************************************************/
#ifndef DOXYGEN_SHOULD_SKIP_THIS
protected:
    virtual void Construct(const FbxObject* pFrom);
    virtual void Destruct(bool pRecursive);
    virtual void ConstructProperties(bool pForceSet);
    virtual bool ConnectNotify(const FbxConnectEvent& pEvent);
    virtual bool PropertyNotify(EPropertyNotifyType pType, FbxProperty& pProperty);

private:
    void        Reset();
    FbxCamera*  GetCamera() const;
    FbxNode*    GetCameraNode() const;
    FbxNode*    GetCameraLookAtNode() const;
    FbxNode*    GetCameraTargetUpNode() const;
    FbxVector4  GetCameraPosition() const;
    void        SetCameraPosition(const FbxVector4& pPosition);
    FbxVector4  GetCameraRotation() const;
    void        SetCameraRotation(const FbxVector4& pRotation);
    FbxVector4  GetCameraLookAtPosition() const;
    void        SetCameraLookAtPosition(const FbxVector4& pPosition);
    FbxVector4  GetCameraTargetUpPosition() const;
    void        SetCameraTargetUpPosition(const FbxVector4& pPosition);
    FbxAMatrix  GetCameraRotationMatrix() const;
    void        SetCameraRotationMatrix(const FbxAMatrix& pRM);

    double      ComputeRotationAxis(FbxVector4& pFront, FbxVector4& pUp, FbxVector4& pRight, const FbxVector4& pEye, const FbxVector4& pLookAt, const FbxVector4& pUpVector) const;
    void        ComputeRotationMatrix(FbxAMatrix& pRM, const FbxVector4& pEye, const FbxVector4& pLookAt, const FbxVector4& pUpVector);
    void        UpdateCameraRotation();

    bool        FrameObjects(bool pSelected, const FbxTime& pTime);
    FbxVector4  ComputePositionToFitBBoxInFrustum(const FbxVector4& pBBoxMin, const FbxVector4& pBBoxMax, const FbxVector4& pBBoxCenter, const FbxVector4& pCameraPosition, const FbxAMatrix& pCameraRM, const FbxTime& pTime);

    EAction     mCurrentAction;
    FbxFloat    mBeginMouse[3], mLastMouse[3];
    FbxVector4  mBeginPosition, mBeginAxis[3];
    FbxBool     mBeginFlipped;

    FbxDouble   mDestOrthoZoom;
    FbxVector4  mDestPosition, mDestLookAt, mDestTargetUp;
    FbxAMatrix  mDestRotation;

    FbxVector4  mInitialPosition, mInitialRotation, mInitialLookAt;
#endif /* !DOXYGEN_SHOULD_SKIP_THIS *****************************************************************************************/
};

#include <fbxsdk/fbxsdk_nsend.h>

#endif /* _FBXSDK_UTILS_MANIPULATORS_H_ */