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 #if wxUSE_GRAPHICS_CONTEXT
  47     virtual wxGraphicsContext* CreateGraphicsContext();
  48 #endif
  49
  50     virtual void DoGetSize(int *width, int *height) const;
  51
  52 protected:
  53     // initialize the newly created DC
  54     void InitDC();
  55
  56     DECLARE_CLASS(wxWindowDCImpl)
  57     DECLARE_NO_COPY_CLASS(wxWindowDCImpl)
  58 };
  59
  60 class WXDLLIMPEXP_CORE wxClientDCImpl : public wxWindowDCImpl
  61 {
  62 public:
  63     // default ctor
  64     wxClientDCImpl( wxDC *owner );
  65
  66     // Create a DC corresponding to the client area of the window
  67     wxClientDCImpl( wxDC *owner, wxWindow *win );
  68
  69     virtual ~wxClientDCImpl();
  70
  71     virtual void DoGetSize(int *width, int *height) const;
  72
  73 protected:
  74     void InitDC();
  75
  76     DECLARE_CLASS(wxClientDCImpl)
  77     DECLARE_NO_COPY_CLASS(wxClientDCImpl)
  78 };
  79
  80 class WXDLLIMPEXP_CORE wxPaintDCImpl : public wxClientDCImpl
  81 {
  82 public:
  83     wxPaintDCImpl( wxDC *owner );
  84
  85     // Create a DC corresponding for painting the window in OnPaint()
  86     wxPaintDCImpl( wxDC *owner, wxWindow *win );
  87
  88     virtual ~wxPaintDCImpl();
  89
  90     // find the entry for this DC in the cache (keyed by the window)
  91     static WXHDC FindDCInCache(wxWindow* win);
  92
  93 protected:
  94     static wxArrayDCInfo ms_cache;
  95
  96     // find the entry for this DC in the cache (keyed by the window)
  97     wxPaintDCInfo *FindInCache(size_t *index = NULL) const;
  98
  99     DECLARE_CLASS(wxPaintDCImpl)
 100     DECLARE_NO_COPY_CLASS(wxPaintDCImpl)
 101 };
 102
 103 /*
 104  * wxPaintDCEx
 105  * This class is used when an application sends an HDC with the WM_PAINT
 106  * message. It is used in HandlePaint and need not be used by an application.
 107  */
 108
 109 class WXDLLIMPEXP_CORE wxPaintDCEx : public wxPaintDC
 110 {
 111 public:
 112     wxPaintDCEx(wxWindow *canvas, WXHDC dc);
 113
 114     DECLARE_CLASS(wxPaintDCEx)
 115     DECLARE_NO_COPY_CLASS(wxPaintDCEx)
 116 };
 117
 118 #endif
 119     // _WX_DCCLIENT_H_