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/dynarray.h"
  21
  22 // ----------------------------------------------------------------------------
  23 // array types
  24 // ----------------------------------------------------------------------------
  25
  26 // this one if used by wxPaintDC only
  27 struct WXDLLEXPORT wxPaintDCInfo;
  28
  29 WX_DECLARE_EXPORTED_OBJARRAY(wxPaintDCInfo, wxArrayDCInfo);
  30
  31 // ----------------------------------------------------------------------------
  32 // DC classes
  33 // ----------------------------------------------------------------------------
  34
  35 class WXDLLEXPORT wxWindowDC : public wxDC
  36 {
  37 public:
  38     // default ctor
  39     wxWindowDC();
  40
  41     // Create a DC corresponding to the whole window
  42     wxWindowDC(wxWindow *win);
  43
  44 protected:
  45     // initialize the newly created DC
  46     void InitDC();
  47
  48     // override some base class virtuals
  49     virtual void DoGetSize(int *width, int *height) const;
  50
  51 private:
  52     DECLARE_DYNAMIC_CLASS_NO_COPY(wxWindowDC)
  53 };
  54
  55 class WXDLLEXPORT wxClientDC : public wxWindowDC
  56 {
  57 public:
  58     // default ctor
  59     wxClientDC();
  60
  61     // Create a DC corresponding to the client area of the window
  62     wxClientDC(wxWindow *win);
  63
  64     virtual ~wxClientDC();
  65
  66 protected:
  67     void InitDC();
  68
  69     // override some base class virtuals
  70     virtual void DoGetSize(int *width, int *height) const;
  71
  72 private:
  73     DECLARE_DYNAMIC_CLASS_NO_COPY(wxClientDC)
  74 };
  75
  76 class WXDLLEXPORT wxPaintDC : public wxClientDC
  77 {
  78 public:
  79     wxPaintDC();
  80
  81     // Create a DC corresponding for painting the window in OnPaint()
  82     wxPaintDC(wxWindow *win);
  83
  84     virtual ~wxPaintDC();
  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 private:
  96     DECLARE_DYNAMIC_CLASS_NO_COPY(wxPaintDC)
  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 WXDLLEXPORT wxPaintDCEx : public wxPaintDC
 106 {
 107 public:
 108     wxPaintDCEx(wxWindow *canvas, WXHDC dc);
 109     virtual ~wxPaintDCEx();
 110 private:
 111     int saveState;
 112
 113     DECLARE_CLASS(wxPaintDCEx)
 114     DECLARE_NO_COPY_CLASS(wxPaintDCEx)
 115 };
 116
 117 #endif
 118     // _WX_DCCLIENT_H_