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#ifndef _CAMERA3D_HXX
#define _CAMERA3D_HXX

#include <svx/viewpt3d.hxx>
#include "svx/svxdllapi.h"

/*************************************************************************
|*
|* Camera derivative
|*
\************************************************************************/

class SVX_DLLPUBLIC Camera3D : public Viewport3D
{
 protected:
    basegfx::B3DPoint	aResetPos;
    basegfx::B3DPoint	aResetLookAt;
    double		fResetFocalLength;
    double		fResetBankAngle;

    basegfx::B3DPoint	aPosition;
    basegfx::B3DPoint	aLookAt;
    double		fFocalLength;
    double		fBankAngle;

    bool bAutoAdjustProjection;

 public:
    Camera3D(const basegfx::B3DPoint& rPos, const basegfx::B3DPoint& rLookAt,
             double fFocalLen = 35.0, double fBankAng = 0);
    Camera3D();

    // Reset to default values
    void Reset();

    void SetDefaults(const basegfx::B3DPoint& rPos, const basegfx::B3DPoint& rLookAt,
                     double fFocalLen = 35.0, double fBankAng = 0);

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

    void SetPosition(const basegfx::B3DPoint& rNewPos);
    const basegfx::B3DPoint& GetPosition() const { return aPosition; }
    void SetLookAt(const basegfx::B3DPoint& rNewLookAt);
    const basegfx::B3DPoint& GetLookAt() const { return aLookAt; }
    void SetPosAndLookAt(const basegfx::B3DPoint& rNewPos, const basegfx::B3DPoint& rNewLookAt);

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

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

    // For rotating the camera position. Changes LookAt.
    void Rotate(double fHAngle, double fVAngle);

    // For changing the point of view. Changes the position.
    void RotateAroundLookAt(double fHAngle, double fVAngle);

    void SetAutoAdjustProjection(bool bAdjust = true)
        { bAutoAdjustProjection = bAdjust; }
    bool IsAutoAdjustProjection() const { return bAutoAdjustProjection; }
};

#endif		// _CAMERA3D_HXX

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