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#ifndef GLT_LIGHT_H
#define GLT_LIGHT_H
/*
GLT OpenGL C++ Toolkit
Copyright (C) 2000-2002 Nigel Stewart
Email: nigels@nigels.com WWW: http://www.nigels.com/glt/
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*! \file
\brief OpenGL Light Source Class
\ingroup GLT
$Id: light.h,v 1.8 2002/10/07 16:33:35 nigels Exp $
$Log: light.h,v $
Revision 1.8 2002/10/07 16:33:35 nigels
Added CVS info
*/
#include "glt_gl.h"
#include <iosfwd>
#include "glt_vector3.h"
#include "glt_color.h"
/*! \class GltLight
\brief OpenGL Light Source Class
\ingroup GLT
Convenient manipulation of lightsource configuration.
*/
class GltLight
{
public:
/// Constructor
GltLight(const GLenum light = GL_LIGHT0,const bool getIt = false);
/// Destructor
~GltLight();
/// Get the current OpenGL light settings
void get();
/// Set the current OpenGL light settings
void set() const;
GLenum &light();
bool &isEnabled();
GltColor &ambient();
GltColor &diffuse();
GltColor &specular();
Vector &position();
bool &isDirectional();
Vector &spotDirection();
GLfloat &spotExponent();
GLfloat &spotCutoff();
GLfloat &attenutationConstant();
GLfloat &attenutationLinear();
GLfloat &attenutationQuadratic();
bool &inEyeSpace();
const GLenum &light() const;
const bool &isEnabled() const;
const GltColor &ambient() const;
const GltColor &diffuse() const;
const GltColor &specular() const;
const Vector &position() const;
const bool &isDirectional() const;
const Vector &spotDirection() const;
const GLfloat &spotExponent() const;
const GLfloat &spotCutoff() const;
const GLfloat &attenutationConstant() const;
const GLfloat &attenutationLinear() const;
const GLfloat &attenutationQuadratic() const;
const bool &inEyeSpace() const;
private:
GLenum _light;
bool _isEnabled;
GltColor _ambient;
GltColor _diffuse;
GltColor _specular;
Vector _position;
bool _isDirectional;
Vector _spotDirection;
GLfloat _spotExponent;
GLfloat _spotCutoff;
GLfloat _attenuationConstant;
GLfloat _attenuationLinear;
GLfloat _attenuationQuadratic;
bool _inEyeSpace;
const static GltColor _ambientDefault;
const static GltColor _diffuseDefault;
const static GltColor _specularDefault;
const static Vector _positionDefault;
const static Vector _spotDirectionDefault;
const static GLfloat _spotExponentDefault;
const static GLfloat _spotCutoffDefault;
const static GLfloat _attenuationConstantDefault;
const static GLfloat _attenuationLinearDefault;
const static GLfloat _attenuationQuadraticDefault;
};
#endif
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