wxWidgets/include/wx/mgl/private.h

/////////////////////////////////////////////////////////////////////////////
// Name:        wx/mgl/private.h
// Purpose:     Private declarations: as this header is only included by
//              wxWidgets itself, it may contain identifiers which don't start
//              with "wx".
// Author:      Vaclav Slavik
// Created:     2001/04/07
// RCS-ID:      $Id$
// Copyright:   (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_MGL_PRIVATE_H_
#define _WX_MGL_PRIVATE_H_

#include "wx/ioswrap.h"
#include <mgraph.hpp>
#include "pmapi.h"

// the scitech headers define true and false
#undef true
#undef false

class WXDLLIMPEXP_FWD_CORE wxBitmap;


// ---------------------------------------------------------------------------
// private variables
// ---------------------------------------------------------------------------

extern MGLDevCtx *g_displayDC;
extern winmng_t  *g_winMng;

// ---------------------------------------------------------------------------
// helper functions
// ---------------------------------------------------------------------------


// This function converts wxBitmap into pixpattern24_t representation
// (used by wxBrush and wxPen)

extern void wxBitmapToPixPattern(const wxBitmap& bitmap,
                                 pixpattern24_t *pix, pattern_t *mask);


// Sets current DC and restores previous one upon destruction:
class wxCurrentDCSwitcher
{
public:
    wxCurrentDCSwitcher(MGLDevCtx *dc)
            { m_old = dc->makeCurrent(); }
    ~wxCurrentDCSwitcher()
            { MGL_makeCurrentDC(m_old); }
    MGLDC *m_old;
};


#endif // _WX_MGL_PRIVATE_H_