include/wx/os2/dcmemory.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/os2/dcmemory.h
   3 // Purpose:     wxMemoryDC class
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     09/09/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_DCMEMORY_H_
  13 #define _WX_DCMEMORY_H_
  14
  15 #include "wx/dcmemory.h"
  16 #include "wx/os2/dc.h"
  17
  18 class WXDLLIMPEXP_CORE wxMemoryDCImpl: public wxPMDCImpl
  19 {
  20 public:
  21     wxMemoryDCImpl( wxMemoryDC *owner );
  22     wxMemoryDCImpl( wxMemoryDC *owner, wxBitmap& bitmap );
  23     wxMemoryDCImpl( wxMemoryDC *owner, wxDC* pDC); // Create compatible DC
  24
  25     // override some base class virtuals
  26     virtual void DoGetSize(int* pWidth, int* pHeight) const;
  27     virtual void DoSelect(const wxBitmap& bitmap);
  28
  29     virtual wxBitmap DoGetAsBitmap(const wxRect* subrect) const
  30     { return subrect == NULL ? GetSelectedBitmap() : GetSelectedBitmap().GetSubBitmap(*subrect);}
  31
  32 protected:
  33     // create DC compatible with the given one or screen if dc == NULL
  34     bool CreateCompatible(wxDC* pDC);
  35
  36     // initialize the newly created DC
  37     void Init(void);
  38 private:
  39     DECLARE_CLASS(wxMemoryDCImpl)
  40     wxDECLARE_NO_COPY_CLASS(wxMemoryDCImpl);
  41 }; // end of CLASS wxMemoryDCImpl
  42
  43 #endif
  44     // _WX_DCMEMORY_H_