CoordsysNode.hh

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


#ifndef ACG_COORDSYSNODE_HH
#define ACG_COORDSYSNODE_HH


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

#include "BaseNode.hh"
#include "DrawModes.hh"
#include <ACG/GL/GLPrimitives.hh>
#include <ACG/ShaderUtils/GLSLShader.hh>
#include <vector>

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

namespace ACG {
namespace SceneGraph {

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


class ACGDLLEXPORT CoordsysNode : public BaseNode
{

public:
  
  enum ProjectionMode {
    ORTHOGRAPHIC_PROJECTION, 
    PERSPECTIVE_PROJECTION   
  };
  
  enum CoordsysMode
  {
    POSITION,   
    SCREENPOS   
  };

  CoordsysNode(
      BaseNode* _parent = 0,
      std::string    _name = "<TextNode>",
      CoordsysMode   _mode = SCREENPOS,
      ProjectionMode _projectionMode = PERSPECTIVE_PROJECTION);

  ~CoordsysNode();

  ACG_CLASSNAME(CoordsysNode);

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

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

  void draw(GLState& _state, const DrawModes::DrawMode& _drawMode);

  void getRenderObjects(IRenderer* _renderer, GLState& _state, const DrawModes::DrawMode& _drawMode, const Material* _mat);
  
  void pick(GLState& _state, PickTarget _target);
        
  void setMode(const CoordsysMode _mode);
        
  void setProjectionMode(const ProjectionMode _mode);
        
  void setPosition(const Vec3f& _pos);
        
  CoordsysMode getMode() const;
        
  ProjectionMode getProjectionMode() const;
        
  private:

    void drawCoordsys(GLState&  _state);
    void drawCoordsys(IRenderer* _renderer, RenderObject* _baseRO);
    void drawCoordsysPick(GLState&  _state, GLSL::Program* _pickShader = 0);
    void clearPickArea(GLState&  _state, bool _draw, GLfloat _depth, GLSL::Program* _pickShader = 0);
    void boundingCircle(std::vector<Vec2f> &_in, Vec2f &_center, float &_radius);

    CoordsysMode mode_;
    ProjectionMode projectionMode_;
        
    Vec3f pos3f_;


    ACG::GLSphere*   sphere_;
    ACG::GLCylinder* cylinder_;
    ACG::GLCone*     cone_;
    ACG::GLDisk*     disk_;
};


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