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#ifndef _CAMERA3D_HXX
#define _CAMERA3D_HXX

#include <bf_svx/viewpt3d.hxx>
namespace binfilter {

/*************************************************************************
|*
|* Kamera-Ableitung
|*
\************************************************************************/

class Camera3D : public Viewport3D
{
 protected:
    Vector3D	aResetPos;
    Vector3D	aResetLookAt;
    double		fResetFocalLength;
    double		fResetBankAngle;

    Vector3D	aPosition;
    Vector3D	aLookAt;
    double		fFocalLength;
    double		fBankAngle;

    FASTBOOL	bAutoAdjustProjection;

 public:
    Camera3D(const Vector3D& rPos, const Vector3D& rLookAt,
             double fFocalLen = 35.0, double fBankAng = 0);
    Camera3D();

    // Anfangswerte wieder herstellen
    void Reset();

    void SetDefaults(const Vector3D& rPos, const Vector3D& rLookAt,
                     double fFocalLen = 35.0, double fBankAng = 0);

    void SetViewWindow(double fX, double fY, double fW, double fH);

    void SetPosition(const Vector3D& rNewPos);
    const Vector3D& GetPosition() const { return aPosition; }
    void SetLookAt(const Vector3D& rNewLookAt);
    const Vector3D& GetLookAt() const { return aLookAt; }
    void SetPosAndLookAt(const Vector3D& rNewPos, const Vector3D& rNewLookAt);

    // Brennweite in mm
    void	SetFocalLength(double fLen);
    double	GetFocalLength() const { return fFocalLength; }

    // Neigung links/rechts
    void	SetBankAngle(double fAngle);
    double	GetBankAngle() const { return fBankAngle; }

    // Um den Blickpunkt drehen, Position wird dabei veraendert
    void RotateAroundLookAt(double fHAngle, double fVAngle);

    void SetAutoAdjustProjection(FASTBOOL bAdjust = TRUE)
        { bAutoAdjustProjection = bAdjust; }
    FASTBOOL IsAutoAdjustProjection() const { return bAutoAdjustProjection; }

    // Die Umstellung von Filerevision 12 auf 13 erfolgte zur 355
    // 5.2.1997 Franz Gotsis, ReadData31 kann also auch die
    // zur 4.0 gehoerigen Filrevisionen bis zu 12 lesen.
    virtual void WriteData31(SvStream& rOut) const;
    virtual void ReadData31(SvStream& rIn);

    virtual void WriteData(SvStream& rOut) const;
    virtual void ReadData(const SdrObjIOHeader& rHead, SvStream& rIn);
};

SvStream& operator<<(SvStream& rOStream, const Viewport3D&);
SvStream& operator>>(SvStream& rIStream, Viewport3D&);

}//end of namespace binfilter
#endif		// _CAMERA3D_HXX

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