fbxmanipulators.h

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/****************************************************************************************
 
   Copyright (C) 2013 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 pZ=0);

    void End();

    void FrameAll(const FbxTime& pTime=FBXSDK_TIME_INFINITE, int pOnAnimLayer=0);

    void FrameSelected(const FbxTime& pTime=FBXSDK_TIME_INFINITE, int pOnAnimLayer=0);

    EAction GetCurrentAction() const;

    FbxPropertyT<FbxReference> Camera;

    FbxPropertyT<FbxFloat> ViewportWidth;

    FbxPropertyT<FbxFloat> ViewportHeight;

    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 FbxCameraManipulator* pFrom);
    virtual void Destruct(bool pRecursive);
    virtual void ConstructProperties(bool pForceSet);
    virtual bool PropertyNotify(EPropertyNotifyType pType, FbxProperty& pProperty);

private:
    void        Reset();
    FbxCamera*  GetCamera() const;
    FbxNode*    GetCameraNode() const;
    FbxNode*    GetCameraLookAtNode() 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);
    void        StoreCameraState();

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

    void        MoveCameraToFitBBoxInFrustum(int pOnAnimLayer, const FbxTime& pTime, const FbxVector4& pBBoxMin, const FbxVector4& pBBoxMax);
    bool        Frame(int pOnAnimLayer, const FbxTime& pTime, bool pSelected);
    void        Evaluate(double& v, const FbxTime& pTime, FbxProperty& p, FbxAnimLayer* pAnimLayer);
    FbxVector4  RejectionOfOn(const FbxVector4& a, const FbxVector4& b);

    EAction     mCurrentAction;
    float       mBeginX, mBeginY;
    FbxVector4  mBeginPosition, mBeginLookAtPosition;
    FbxVector4  mAxisX, mAxisY, mAxisZ;
    FbxVector4  mInitialPosition, mInitialRotation, mInitialLookAt;
#endif /* !DOXYGEN_SHOULD_SKIP_THIS *****************************************************************************************/
};

#include <fbxsdk/fbxsdk_nsend.h>

#endif /* _FBXSDK_UTILS_MANIPULATORS_H_ */