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