OSGWIN32Window.cpp

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 *                                License                                    *
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 * This library is free software; you can redistribute it and/or modify it   *
 * under the terms of the GNU Library General Public License as published    *
 * by the Free Software Foundation, version 2.                               *
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 * WITHOUT ANY WARRANTY; without even the implied warranty of                *
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\*---------------------------------------------------------------------------*/

//---------------------------------------------------------------------------
//  Includes
//---------------------------------------------------------------------------

#include <stdlib.h>
#include <stdio.h>

#include <OSGConfig.h>

// Forget everything if we're not doing a windows compile
#ifdef WIN32

#include "OSGWIN32Window.h"

OSG_USING_NAMESPACE

/*----------------------- constructors & destructors ----------------------*/


WIN32Window::WIN32Window(void) :
    Inherited()
{
}


WIN32Window::WIN32Window(const WIN32Window &source) :
    Inherited(source)
{
}


WIN32Window::~WIN32Window(void)
{
    if(getHglrc() != NULL)
        wglDeleteContext(getHglrc());
}

/*----------------------------- class specific ----------------------------*/


void WIN32Window::initMethod (void)
{
}


void WIN32Window::changed(BitVector whichField, UInt32 origin)
{
    Inherited::changed(whichField, origin);
}


void WIN32Window::dump(      UInt32    , 
                         const BitVector ) const
{
    SLOG << "Dump WIN32Window NI" << std::endl;
}

/*-------------------------- your_category---------------------------------*/

void WIN32Window::init( void )
{
    setHdc(GetDC(getHwnd()));

    if(getHglrc() == NULL )
    {
        setHglrc(wglCreateContext(getHdc()));
        
        if(getHglrc() == NULL)
        {
            std::cerr << "WIN32Window::init: failed: "
                      << GetLastError() 
                      << std::endl;        
        }
    }

    ReleaseDC(getHwnd(),getHdc());
    activate();
    setupGL();
}

void WIN32Window::activate( void )
{    
    setHdc(GetDC(getHwnd()));

    if(!wglMakeCurrent(getHdc(), getHglrc() ) )
    {
        std::cerr << "WIN32Window::activate: failed: "
                  << GetLastError() 
                  << std::endl;        
    }
}

void WIN32Window::deactivate ( void )
{
    // unbind the context
    wglMakeCurrent(NULL, NULL);

    // release the hardware device context
    ReleaseDC(getHwnd(),getHdc());
}

// swap front and back buffers
void WIN32Window::swap( void )
{
    SwapBuffers(getHdc());
}



/*-------------------------------------------------------------------------*/
/*                              cvs id's                                   */

namespace
{
    static char cvsid_cpp[] = "@(#)$Id: $";
    static char cvsid_hpp[] = OSGWIN32WINDOW_HEADER_CVSID;
    static char cvsid_inl[] = OSGWIN32WINDOW_INLINE_CVSID;

    static Char8 cvsid_fields_hpp[] = OSGWIN32WINDOWFIELDS_HEADER_CVSID;
}

#endif // WIN32

---