coVR3DScaleGizmo.h

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#ifndef _CO_VR_3D_SCALE_GIZMO
#define _CO_VR_3D_SCALE_GIZMO
 
#include "coVR3DGizmoType.h"
 
 
 
namespace opencover
{
class coVR3DGizmo;
class PLUGIN_UTILEXPORT coVR3DScaleGizmo : public coVR3DGizmoType
{
private:
    bool _scaleXonly{false}, _scaleYonly{false}, _scaleZonly{false}, _scaleAll{false};
    osg::Vec3 _startHitPos_o;
    float _scale;
 
    osg::ref_ptr<osg::MatrixTransform> axisTransform;       // all the Geometry
    osg::ref_ptr<osg::MatrixTransform> xAxisTransform;
    osg::ref_ptr<osg::MatrixTransform> yAxisTransform;
    osg::ref_ptr<osg::MatrixTransform> zAxisTransform;
    osg::ref_ptr<osg::MatrixTransform> xSphereTransform;
    osg::ref_ptr<osg::MatrixTransform> ySphereTransform;
    osg::ref_ptr<osg::MatrixTransform> zSphereTransform;
 
    /* 
    // this was used to visualize scale
    osg::Matrix  _startxAxisMatrix,_startyAxisMatrix, _startzAxisMatrix;
    osg::ref_ptr<osg::MatrixTransform> tempxAxisTransform;  
    osg::ref_ptr<osg::MatrixTransform> tempyAxisTransform;  
    osg::ref_ptr<osg::MatrixTransform> tempzAxisTransform;  
    */
 
    osg::ref_ptr<osg::Geode> sphereGeode;
    osg::ref_ptr<osg::Geode> scaleXaxisGeode;
    osg::ref_ptr<osg::Geode> scaleYaxisGeode;
    osg::ref_ptr<osg::Geode> scaleZaxisGeode;
    osg::ref_ptr<osg::Geode> scaleXSphereGeode;
    osg::ref_ptr<osg::Geode> scaleYSphereGeode;
    osg::ref_ptr<osg::Geode> scaleZSphereGeode;
 
    std::unique_ptr<opencover::coLine> _line;   
 
    osg::Vec3 calculatePointOfShortestDistance(const osg::Vec3& lp0, const osg::Vec3& lp1, osg::Vec3 axis_o) const;
 
    //osg::Vec3 calculatePointOfShortestDistance(const osg::Vec3& lp0, const osg::Vec3& lp1, osg::Vec3 axis = osg::Vec3(0,0,0)) const;
 
    
protected:
    virtual void createGeometry() override;
    //void updateSharedState() override;
    typedef vrb::SharedState<osg::Matrix> SharedMatrix;
    int hit(vrui::vruiHit *hit) override;
    float calcScale(osg::Vec3 axis);
 
 
public:
    coVR3DScaleGizmo(osg::Matrix m, float s, coInteraction::InteractionType type, const char *iconName, const char *interactorName, coInteraction::InteractionPriority priority,coVR3DGizmo* gizmoPointer = nullptr);
 
    // delete scene graph
    virtual ~coVR3DScaleGizmo();
 
    // start the interaction (grab pointer, set selected hl, store dcsmat)
    virtual void startInteraction() override;
    virtual void doInteraction() override;
    virtual void stopInteraction() override;
    virtual void resetState() override; 
 
 
    virtual void updateTransform(osg::Matrix m) override;
 
    osg::Matrix getMoveMatrix_o() const override;
    const osg::Matrix &getMatrix() const
    {
        return _interMat_o;
    }
    //void setShared(bool state) override;
 
};
 
 
}
#endif