include/wx/msw/dcmemory.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/dcmemory.h
   3 // Purpose:     wxMemoryDC class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // Copyright:   (c) Julian Smart
   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/msw/dc.h"
  16
  17 class WXDLLIMPEXP_CORE wxMemoryDCImpl: public wxMSWDCImpl
  18 {
  19 public:
  20     wxMemoryDCImpl( wxMemoryDC *owner );
  21     wxMemoryDCImpl( wxMemoryDC *owner, wxBitmap& bitmap );
  22     wxMemoryDCImpl( wxMemoryDC *owner, wxDC *dc ); // Create compatible DC
  23
  24     // override some base class virtuals
  25     virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
  26     virtual void DoGetSize(int* width, int* height) const;
  27     virtual void DoSelect(const wxBitmap& bitmap);
  28
  29     virtual wxBitmap DoGetAsBitmap(const wxRect* subrect) const
  30     { return subrect == NULL ? GetSelectedBitmap() : GetSelectedBitmap().GetSubBitmapOfHDC(*subrect, GetHDC() );}
  31
  32 protected:
  33     // create DC compatible with the given one or screen if dc == NULL
  34     bool CreateCompatible(wxDC *dc);
  35
  36     // initialize the newly created DC
  37     void Init();
  38
  39     DECLARE_CLASS(wxMemoryDCImpl)
  40     wxDECLARE_NO_COPY_CLASS(wxMemoryDCImpl);
  41 };
  42
  43 #endif
  44     // _WX_DCMEMORY_H_