include/wx/msw/dcclient.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dcclient.h
   3 // Purpose:     wxClientDC class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_DCCLIENT_H_
  13 #define _WX_DCCLIENT_H_
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #include "wx/dc.h"
  20 #include "wx/msw/dc.h"
  21 #include "wx/dcclient.h"
  22 #include "wx/dynarray.h"
  23
  24 // ----------------------------------------------------------------------------
  25 // array types
  26 // ----------------------------------------------------------------------------
  27
  28 // this one if used by wxPaintDC only
  29 struct WXDLLIMPEXP_FWD_CORE wxPaintDCInfo;
  30
  31 WX_DECLARE_EXPORTED_OBJARRAY(wxPaintDCInfo, wxArrayDCInfo);
  32
  33 // ----------------------------------------------------------------------------
  34 // DC classes
  35 // ----------------------------------------------------------------------------
  36
  37 class WXDLLIMPEXP_CORE wxWindowDCImpl : public wxMSWDCImpl
  38 {
  39 public:
  40     // default ctor
  41     wxWindowDCImpl( wxDC *owner );
  42
  43     // Create a DC corresponding to the whole window
  44     wxWindowDCImpl( wxDC *owner, wxWindow *win );
  45
  46     virtual void DoGetSize(int *width, int *height) const;
  47
  48 protected:
  49     // initialize the newly created DC
  50     void InitDC();
  51
  52     DECLARE_CLASS(wxWindowDCImpl)
  53     wxDECLARE_NO_COPY_CLASS(wxWindowDCImpl);
  54 };
  55
  56 class WXDLLIMPEXP_CORE wxClientDCImpl : public wxWindowDCImpl
  57 {
  58 public:
  59     // default ctor
  60     wxClientDCImpl( wxDC *owner );
  61
  62     // Create a DC corresponding to the client area of the window
  63     wxClientDCImpl( wxDC *owner, wxWindow *win );
  64
  65     virtual ~wxClientDCImpl();
  66
  67     virtual void DoGetSize(int *width, int *height) const;
  68
  69 protected:
  70     void InitDC();
  71
  72     DECLARE_CLASS(wxClientDCImpl)
  73     wxDECLARE_NO_COPY_CLASS(wxClientDCImpl);
  74 };
  75
  76 class WXDLLIMPEXP_CORE wxPaintDCImpl : public wxClientDCImpl
  77 {
  78 public:
  79     wxPaintDCImpl( wxDC *owner );
  80
  81     // Create a DC corresponding for painting the window in OnPaint()
  82     wxPaintDCImpl( wxDC *owner, wxWindow *win );
  83
  84     virtual ~wxPaintDCImpl();
  85
  86     // find the entry for this DC in the cache (keyed by the window)
  87     static WXHDC FindDCInCache(wxWindow* win);
  88
  89 protected:
  90     static wxArrayDCInfo ms_cache;
  91
  92     // find the entry for this DC in the cache (keyed by the window)
  93     wxPaintDCInfo *FindInCache(size_t *index = NULL) const;
  94
  95     DECLARE_CLASS(wxPaintDCImpl)
  96     wxDECLARE_NO_COPY_CLASS(wxPaintDCImpl);
  97 };
  98
  99 /*
 100  * wxPaintDCEx
 101  * This class is used when an application sends an HDC with the WM_PAINT
 102  * message. It is used in HandlePaint and need not be used by an application.
 103  */
 104
 105 class WXDLLIMPEXP_CORE wxPaintDCEx : public wxPaintDC
 106 {
 107 public:
 108     wxPaintDCEx(wxWindow *canvas, WXHDC dc);
 109
 110     DECLARE_CLASS(wxPaintDCEx)
 111     wxDECLARE_NO_COPY_CLASS(wxPaintDCEx);
 112 };
 113
 114 #endif
 115     // _WX_DCCLIENT_H_