TextNode.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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 *  OpenFlipper is free software: you can redistribute it and/or modify      *
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/*===========================================================================*\
 *                                                                           *
 *   $Revision: 6743 $                                                       *
 *   $Author: moebius $                                                      *
 *   $Date: 2009-08-05 11:03:10 +0200 (Mi, 05. Aug 2009) $                   *
 *                                                                           *
\*===========================================================================*/




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

#ifdef USE_FTGL

#ifndef ACG_TEXTNODE_HH
#define ACG_TEXTNODE_HH


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

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

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

namespace ACG {
namespace SceneGraph {

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



class ACGDLLEXPORT TextNode : public BaseNode
{
public:

  enum TextMode {
    SCREEN_ALIGNED, 
    OBJECT_ALIGNED  
  };

  TextNode( std::string       _fontFile,
            BaseNode*         _parent=0,
                 std::string  _name="<TextNode>",
            TextMode     _textMode = SCREEN_ALIGNED)
            : BaseNode(_parent, _name),
                          font_(0),
              size_(_textMode == SCREEN_ALIGNED ? 15 : 1),
              fontFile_(_fontFile),
              textMode_(_textMode)
  {
          UpdateFont();
  }

  ~TextNode();

  ACG_CLASSNAME(TextNode);

  unsigned int availableDrawModes() const;

  void boundingBox(Vec3f& _bbMin, Vec3f& _bbMax);

  void draw(GLState& _state, unsigned int _drawMode);

  void setRenderingMode(TextMode _textMode) { textMode_ = _textMode; };

  TextMode renderingMode() { return textMode_; };

  void setText(std::string _text) {text_ = _text;};

  void setSize(unsigned int _size) {size_ = _size; UpdateFont();};

protected:
  void UpdateFont();

private:
  void *font_;

  unsigned int size_;

  std::string text_;

  std::string fontFile_;

  TextMode textMode_;
};


//=============================================================================
} // namespace SceneGraph
} // namespace ACG
//=============================================================================
#endif // ACG_TEXTNODE_HH defined
//=============================================================================
#else // NO USE_FTGL but header included

  #ifdef WIN32
    #pragma message ( "TextNode requires ftgl but ftgl was not found" )
  #else
    #warning TextNode requires ftgl but ftgl was not found
  #endif

#endif // USE_FTGL defined
//=============================================================================