include/wx/mgl/private.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        private.h
   3 // Purpose:     Private declarations: as this header is only included by
   4 //              wxWidgets itself, it may contain identifiers which don't start
   5 //              with "wx".
   6 // Author:      Vaclav Slavik
   7 // Created:     2001/04/07
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 #ifndef _WX_MGL_PRIVATE_H_
  14 #define _WX_MGL_PRIVATE_H_
  15
  16 #include "wx/ioswrap.h"
  17 #include <mgraph.hpp>
  18 #include "pmapi.h"
  19
  20 // the scitech headers define true and false
  21 #undef true
  22 #undef false
  23
  24 class WXDLLEXPORT wxBitmap;
  25
  26
  27 // ---------------------------------------------------------------------------
  28 // private variables
  29 // ---------------------------------------------------------------------------
  30
  31 extern MGLDevCtx *g_displayDC;
  32 extern winmng_t  *g_winMng;
  33
  34 // ---------------------------------------------------------------------------
  35 // helper functions
  36 // ---------------------------------------------------------------------------
  37
  38
  39 // This function converts wxBitmap into pixpattern24_t representation
  40 // (used by wxBrush and wxPen)
  41
  42 extern void wxBitmapToPixPattern(const wxBitmap& bitmap,
  43                                  pixpattern24_t *pix, pattern_t *mask);
  44
  45
  46 // Sets current DC and restores previous one upon destruction:
  47 class wxCurrentDCSwitcher
  48 {
  49 public:
  50     wxCurrentDCSwitcher(MGLDevCtx *dc)
  51             { m_old = dc->makeCurrent(); }
  52     ~wxCurrentDCSwitcher()
  53             { MGL_makeCurrentDC(m_old); }
  54     MGLDC *m_old;
  55 };
  56
  57
  58 #endif // _WX_MGL_PRIVATE_H_