viscamera.h

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#pragma once

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Kristofer Tingdahl
 Date:          4-11-2002
________________________________________________________________________


-*/

#include "visdata.h"
#include "position.h"
namespace osg { class Camera; class RenderInfo; }

namespace visBase
{

class DrawCallback;

mExpClass(visBase) Camera : public DataObject
{
public:

    static Camera*      create()
                        mCreateDataObj( Camera );

    osg::Camera*        osgCamera() const;
    Coord3              getTranslation() const;
    Coord3              getScale() const;
    void                getRotation(Coord3& vec,double& angle)const;
    void                getLookAtMatrix(Coord3&,Coord3&,Coord3&)const;


    Notifier<Camera>            preDraw;
    Notifier<Camera>            postDraw;

    const osg::RenderInfo*      getRenderInfo() const { return renderinfo_; }

private:
    friend                      class DrawCallback;

    void                        triggerDrawCallBack(const DrawCallback*,
                    const osg::RenderInfo&);

    virtual                     ~Camera();

    osg::Camera*                camera_;
    const osg::RenderInfo*      renderinfo_;
    DrawCallback*               predraw_;
    DrawCallback*               postdraw_;

};


};