DAFFVizLabel.h

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/*
 * -------------------------------------------------------------------------------------
 *
 *  OpenDAFF - A free, open source software package for directional audio data
 *  Copyright 2016 Institute of Technical Acoustics, RWTH Aachen University
 *  OpenDAFF is distributed under the Apache License Version 2.0
 *
 *  ------------------------------------------------------------------------------------
 *
 */
#ifndef IW_DAFF_LABEL
#define IW_DAFF_LABEL

#include <daffviz/DAFFVizSGNode.h>

#include <string>

// Forward declarations
class vtkActor;
class vtkCamera;
class vtkFollower;
class vtkPolyDataMapper;
class vtkVectorText;

namespace DAFFViz
{


    class DAFF_API Label : public DAFFViz::SGNode
    {
    public:
        Label();
        Label( SGNode* pNode );
        Label( SGNode* pNode, std::string sText );
        ~Label();


        // --= general methods =--

        void GetColor( double& r, double& g, double& b ) const;

        void SetColor( double r,  double g,  double b );

        double GetAlpha() const;

        void SetAlpha( double a );

        bool IsVisible() const;

        void SetVisible( bool bVisible );


        // --= object related methods =--

        void SetText( const std::string& sText );

        std::string GetText() const;

    private:
        vtkSmartPointer< vtkVectorText >        m_pLabelText;
        vtkSmartPointer< vtkPolyDataMapper >  m_pMapper;
        vtkSmartPointer< vtkFollower >      m_pFollower;
        vtkSmartPointer< vtkActor >         m_pActor;

        std::string         m_sText;

        // The initializer generates dynamic objects like source, mapper, actor ...
        void init();
    
        // --= object related methods =--

        virtual void OnSetFollowerCamera( vtkSmartPointer< vtkCamera > pCamera );

        friend class Frame;
    };

} // End of namespace "DAFFViz"

#endif //  IW_DAFF_LABEL