//##################################################################################################
//
//   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. 
//
//##################################################################################################

#include "cvfBase.h"
#include "cvfqtCvfBoundQGLContext.h"
#include "cvfqtOpenGLContext.h"

namespace cvfqt {



//==================================================================================================
///
/// \class cvfqt::CvfBoundQGLContext
/// \ingroup GuiQt
///
/// 
/// 
//==================================================================================================

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
CvfBoundQGLContext::CvfBoundQGLContext(cvf::OpenGLContextGroup* contextGroup, const QGLFormat & format)
:   QGLContext(format)
{
    m_cvfGLContext = new OpenGLContext(contextGroup, this);
}


//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
CvfBoundQGLContext::~CvfBoundQGLContext()
{
    if (m_cvfGLContext.notNull())
    {
        // TODO
        // Need to resolve the case where the Qt QGLcontext (that we're deriving from) is deleted
        // and CeeViz is still holding a reference to one or more OpenGLContext objects
        // By the time we get here we expect that we're holding the only reference
        CVF_ASSERT(m_cvfGLContext->refCount() == 1);
        m_cvfGLContext = NULL;
    }
}


//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
cvf::OpenGLContext* CvfBoundQGLContext::cvfOpenGLContext() const
{
    return const_cast<cvf::OpenGLContext*>(m_cvfGLContext.p());
}


} // namespace cvfqt