CoordsysNode.hh

/*===========================================================================*\
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 *                              OpenFlipper                                  *
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/*===========================================================================*\
 *                                                                           *
 *   $Revision: 8548 $                                                       *
 *   $Author: moebius $                                                      *
 *   $Date: 2010-02-12 14:40:13 +0100 (Fr, 12. Feb 2010) $                   *
 *                                                                           *
\*===========================================================================*/




//=============================================================================
//
//  CLASS PointNode
//
//=============================================================================


#ifndef ACG_COORDSYSNODE_HH
#define ACG_COORDSYSNODE_HH


//== INCLUDES =================================================================

#include "BaseNode.hh"
#include "DrawModes.hh"
#include <vector>

//== NAMESPACES ===============================================================

namespace ACG {
namespace SceneGraph {

//== CLASS DEFINITION =========================================================


class ACGDLLEXPORT CoordsysNode : public BaseNode
{

public:
  
  enum CoordsysMode
  {
    POSITION,   // Draws the Coordsys at the coordsys origin
    SCREENPOS // Draws the Coordsys at the upper right position on the screen
  };

  CoordsysNode( BaseNode*         _parent=0,
                 std::string  _name="<TextNode>",
            CoordsysMode _mode = SCREENPOS )
            : BaseNode(_parent, _name),
              mode_(_mode) {};

  ~CoordsysNode() {};

  ACG_CLASSNAME(CoordsysNode);

  ACG::SceneGraph::DrawModes::DrawMode  availableDrawModes() const;

  void boundingBox(Vec3d& _bbMin, Vec3d& _bbMax);

  void draw(GLState& _state, DrawModes::DrawMode _drawMode);
  
  void pick(GLState& _state, PickTarget _target);
        
  void setMode(const CoordsysMode _mode);
        
  void setPosition(const Vec3f& _pos);
        
  CoordsysMode getMode() const;
        
  private:

    void drawCoordsys(GLState&  _state);
    void drawCoordsysPick(GLState&  _state);
    void clearPickArea(GLState&  _state, bool _draw, GLfloat _depth);
    void boundingCircle(std::vector<Vec2f> &_in, Vec2f &_center, float &_radius);

    CoordsysMode mode_;
        
    Vec3f pos3f_;
};


//=============================================================================
} // namespace SceneGraph
} // namespace ACG
//=============================================================================
#endif // ACG_COORDSYSNODE_HH defined
//=============================================================================