LineNode.hh

/*===========================================================================*\
 *                                                                           *
 *                              OpenFlipper                                  *
 *      Copyright (C) 2001-2009 by Computer Graphics Group, RWTH Aachen      *
 *                           www.openflipper.org                             *
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 *  This file is part of OpenFlipper.                                        *
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\*===========================================================================*/

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




//=============================================================================
//
//  CLASS LineNode
//
//=============================================================================


#ifndef ACG_LINENODE_HH
#define ACG_LINENODE_HH


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

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

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

namespace ACG {
namespace SceneGraph {

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



class ACGDLLEXPORT LineNode : public MaterialNode
{
public:

  // typedefs
  typedef std::vector<Vec3f>           PointVector;
  typedef PointVector::iterator        PointIter;
  typedef PointVector::const_iterator  ConstPointIter;
  typedef std::vector<ACG::Vec3uc>     ColorVector;
  typedef ColorVector::iterator        ColorIter;
  typedef ColorVector::const_iterator  ConstColorIter;

  enum LineMode { LineSegmentsMode, PolygonMode };



  LineNode( LineMode     _mode,
            BaseNode*    _parent=0,
            std::string  _name="<LineNode>" ) :
    MaterialNode(_parent,
                 _name,
                 MaterialNode::BaseColor |
                 MaterialNode::LineWidth),
    line_mode_(_mode)
  {
    drawMode(DrawModes::WIREFRAME);
  }

  ~LineNode() {}


  void set_line_mode(LineMode _mode) { line_mode_ = _mode; }



  ACG_CLASSNAME(LineNode);

  DrawModes::DrawMode  availableDrawModes() const;

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

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




  void reserve_lines(unsigned int _n) { points_.reserve(2*_n); }

  void reserve_points(unsigned int _n) { points_.reserve(_n); }

  void clear() { clear_points(); clear_colors(); }
  void clear_points() { points_.clear(); }
  void clear_colors() { colors_.clear(); }


  void add_point(const Vec3f& _v) { points_.push_back(_v); }

  void add_line(const Vec3f& _v0, const Vec3f& _v1) {
    add_point(_v0);  add_point(_v1);
  }
  void add_color(const ACG::Vec3uc& _c) { colors_.push_back(_c); }


  unsigned int n_points() const { return points_.size(); }

  const PointVector& points() const { return points_; }

  ColorVector& colors() { return colors_; }


  void push_back(const Vec3f& _v) { points_.push_back(_v); }
  typedef Vec3f         value_type;
  typedef Vec3f&        reference;
  typedef const Vec3f&  const_reference;


protected:

  PointVector  points_;
  ColorVector  colors_;

  LineMode     line_mode_;
};


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