gltext.cc

/*===========================================================================*\
 *                                                                           *
 *                              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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 *  GNU Lesser General Public License. This exception does not however       *
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 *  covered by the GNU Lesser General Public License.                        *
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\*===========================================================================*/

/*===========================================================================*\
 *                                                                           *
 *   $Revision: 6743 $                                                       *
 *   $Author: moebius $                                                      *
 *   $Date: 2009-08-05 11:03:10 +0200 (Mi, 05. Aug 2009) $                   *
 *                                                                           *
\*===========================================================================*/


//=============================================================================


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

#include "gltext.hh"

//=============================================================================

namespace ACG {

//=============================================================================


void glText(const Vec3f&        _pos, 
            const std::string&  _text,
            void*               _font)
{
  glRasterPos3fv(_pos.data());
  
  std::string::const_iterator s_it(_text.begin()), s_end(_text.end());
  for (; s_it!=s_end; ++s_it)
    glutBitmapCharacter(_font, *s_it);
}


//-----------------------------------------------------------------------------


void glText( const Vec2i&        _pos,
             const std::string&  _text,
             void*               _font)
{
  GLint viewport[4];
  glGetIntegerv(GL_VIEWPORT, viewport);

  // set raster pos
  glMatrixMode(GL_PROJECTION);
  glPushMatrix();
  glLoadIdentity();
  gluOrtho2D(0.0, (GLfloat) viewport[2], 0.0, (GLfloat) viewport[3]);
  glMatrixMode(GL_MODELVIEW);
  glPushMatrix();
  glLoadIdentity();
  glRasterPos2i(_pos[0], _pos[1]);
  

  // draw characters
  std::string::const_iterator s_it(_text.begin()), s_end(_text.end());
  for (; s_it!=s_end; ++s_it)
    glutBitmapCharacter(_font, *s_it);


  // restore matrices
  glMatrixMode(GL_PROJECTION);
  glPopMatrix();
  glMatrixMode(GL_MODELVIEW);
  glPopMatrix();
}


//=============================================================================
}  // namespace ACG
//=============================================================================