include/wx/msw/dcclient.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/dcclient.h
   3 // Purpose:     wxClientDC 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_DCCLIENT_H_
  12 #define _WX_DCCLIENT_H_
  13
  14 // ----------------------------------------------------------------------------
  15 // headers
  16 // ----------------------------------------------------------------------------
  17
  18 #include "wx/dc.h"
  19 #include "wx/msw/dc.h"
  20 #include "wx/dcclient.h"
  21
  22 class wxPaintDCInfo;
  23
  24 // ----------------------------------------------------------------------------
  25 // DC classes
  26 // ----------------------------------------------------------------------------
  27
  28 class WXDLLIMPEXP_CORE wxWindowDCImpl : public wxMSWDCImpl
  29 {
  30 public:
  31     // default ctor
  32     wxWindowDCImpl( wxDC *owner );
  33
  34     // Create a DC corresponding to the whole window
  35     wxWindowDCImpl( wxDC *owner, wxWindow *win );
  36
  37     virtual void DoGetSize(int *width, int *height) const;
  38
  39 protected:
  40     // initialize the newly created DC
  41     void InitDC();
  42
  43     DECLARE_CLASS(wxWindowDCImpl)
  44     wxDECLARE_NO_COPY_CLASS(wxWindowDCImpl);
  45 };
  46
  47 class WXDLLIMPEXP_CORE wxClientDCImpl : public wxWindowDCImpl
  48 {
  49 public:
  50     // default ctor
  51     wxClientDCImpl( wxDC *owner );
  52
  53     // Create a DC corresponding to the client area of the window
  54     wxClientDCImpl( wxDC *owner, wxWindow *win );
  55
  56     virtual ~wxClientDCImpl();
  57
  58     virtual void DoGetSize(int *width, int *height) const;
  59
  60 protected:
  61     void InitDC();
  62
  63     DECLARE_CLASS(wxClientDCImpl)
  64     wxDECLARE_NO_COPY_CLASS(wxClientDCImpl);
  65 };
  66
  67 class WXDLLIMPEXP_CORE wxPaintDCImpl : public wxClientDCImpl
  68 {
  69 public:
  70     wxPaintDCImpl( wxDC *owner );
  71
  72     // Create a DC corresponding for painting the window in OnPaint()
  73     wxPaintDCImpl( wxDC *owner, wxWindow *win );
  74
  75     virtual ~wxPaintDCImpl();
  76
  77     // find the entry for this DC in the cache (keyed by the window)
  78     static WXHDC FindDCInCache(wxWindow* win);
  79
  80     // This must be called by the code handling WM_PAINT to remove the DC
  81     // cached for this window for the duration of this message processing.
  82     static void EndPaint(wxWindow *win);
  83
  84 protected:
  85     // Find the DC for this window in the cache, return NULL if not found.
  86     static wxPaintDCInfo *FindInCache(wxWindow* win);
  87
  88     DECLARE_CLASS(wxPaintDCImpl)
  89     wxDECLARE_NO_COPY_CLASS(wxPaintDCImpl);
  90 };
  91
  92 /*
  93  * wxPaintDCEx
  94  * This class is used when an application sends an HDC with the WM_PAINT
  95  * message. It is used in HandlePaint and need not be used by an application.
  96  */
  97
  98 class WXDLLIMPEXP_CORE wxPaintDCEx : public wxPaintDC
  99 {
 100 public:
 101     wxPaintDCEx(wxWindow *canvas, WXHDC dc);
 102
 103     DECLARE_CLASS(wxPaintDCEx)
 104     wxDECLARE_NO_COPY_CLASS(wxPaintDCEx);
 105 };
 106
 107 #endif
 108     // _WX_DCCLIENT_H_