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