ManipulatorNode.hh

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//=============================================================================
//
//  CLASS ManipulatorNode
//
//=============================================================================


#ifndef ACG_MANIPULATOR_NODE_HH
#define ACG_MANIPULATOR_NODE_HH


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

// GMU
#include "BaseNode.hh"
#include "TransformNode.hh"

// Qt
#include <QEvent>
#include <QMouseEvent>

#include <ACG/GL/GLPrimitives.hh>


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

namespace ACG {
namespace SceneGraph {


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


class ACGDLLEXPORT ManipulatorNode : public TransformNode
{
public:


  ManipulatorNode( BaseNode* _parent=0,
                   const std::string& _name="<ManipulatorNode>" );

  ~ManipulatorNode();


  ACG_CLASSNAME(ManipulatorNode);


  //
  // METHODS
  //



  virtual void setIdentity();

  void set_draw_cylinder(bool _b) { draw_cylinder_ = _b; }

  bool draw_cylinder() const { return draw_cylinder_; }

  void set_direction(Vec3d& _v);

  Vec3d direction() const;

  void set_size( double _size) { cylinder_height_ = _size;
                                 cylinder_radius_ = _size/10.0;}

  double size() const { return cylinder_height_; }

  void translate(double _s) {
    Vec3d rel_dir = rotation().transform_vector(direction_);
    TransformNode::translate(_s * rel_dir);
  }

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

  void pick(GLState& _state, PickTarget _target);

  virtual void mouseEvent(GLState& _state, QMouseEvent* _event);

  bool touched() { return touched_; };

  void reset_touched() { touched_ = false; };


private:

  void setup_sphere_system(GLState& _state);
  void setup_cylinder_system(GLState& _state);

  bool mapToSphere(GLState& _state, const Vec2i& _v2, Vec3d& _v3);
  bool hitSphere(GLState& _state, const Vec2i& _v2);
  bool mapToCylinder (GLState& _state, const Vec2i& _v2, double& axis_hit);





  // ELEMENTS
  bool               draw_cylinder_;

  Vec3d              direction_;
  GLCylinder*        cylinder_;
  double             cylinder_radius_;
  double             cylinder_height_;
  int                cylinder_slices_;
  int                cylinder_stacks_;


  bool               cylinder_clicked_;
  bool               sphere_clicked_;

  Vec2i              oldPoint2D_;

  bool               touched_;
};


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