//##################################################################################################
//
//   Custom Visualization Core library
//   Copyright (C) 2011-2012 Ceetron AS
//    
//   This library is free software: you can redistribute it and/or modify 
//   it under the terms of the GNU General Public License as published by 
//   the Free Software Foundation, either version 3 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 General Public License at <<http://www.gnu.org/licenses/gpl.html>> 
//   for more details. 
//
//##################################################################################################

#pragma once

#include "cvfRenderState.h"

namespace cvf {



//==================================================================================================
//
// Encapsulate OpenGL glColorMask() function.
//
//==================================================================================================
class RenderStateColorMask : public RenderState
{
public:
    RenderStateColorMask(bool writeAllComponents = true);

    void            enable(bool writeRed, bool writeGreen, bool writeBlue, bool writeAlpha);
    void            enableWriteAllComponents(bool writeAllComponents);

    bool            isRedEnabled() const;
    bool            isGreenEnabled() const;
    bool            isBlueEnabled() const;
    bool            isAlphaEnabled() const;

    virtual void    applyOpenGL(OpenGLContext* oglContext) const;

private:
    bool        m_writeRed;
    bool        m_writeGreen;
    bool        m_writeBlue;
    bool        m_writeAlpha;
};
}  // namespace cvf

