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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  20     #pragma interface "dcclient.h"
  21 #endif
  22
  23 #include "wx/dc.h"
  24 #include "wx/dynarray.h"
  25
  26 // ----------------------------------------------------------------------------
  27 // array types
  28 // ----------------------------------------------------------------------------
  29
  30 // this one if used by wxPaintDC only
  31 struct WXDLLEXPORT wxPaintDCInfo;
  32
  33 WX_DECLARE_EXPORTED_OBJARRAY(wxPaintDCInfo, wxArrayDCInfo);
  34
  35 // ----------------------------------------------------------------------------
  36 // DC classes
  37 // ----------------------------------------------------------------------------
  38
  39 class WXDLLEXPORT wxWindowDC : public wxDC
  40 {
  41 public:
  42     // default ctor
  43     wxWindowDC();
  44
  45     // Create a DC corresponding to the whole window
  46     wxWindowDC(wxWindow *win);
  47
  48 protected:
  49     // intiialize the newly created DC
  50     void InitDC();
  51
  52     // override some base class virtuals
  53     virtual void DoGetSize(int *width, int *height) const;
  54
  55 private:
  56     DECLARE_DYNAMIC_CLASS_NO_COPY(wxWindowDC)
  57 };
  58
  59 class WXDLLEXPORT wxClientDC : public wxWindowDC
  60 {
  61 public:
  62     // default ctor
  63     wxClientDC();
  64
  65     // Create a DC corresponding to the client area of the window
  66     wxClientDC(wxWindow *win);
  67
  68     virtual ~wxClientDC();
  69
  70 protected:
  71     void InitDC();
  72
  73     // override some base class virtuals
  74     virtual void DoGetSize(int *width, int *height) const;
  75
  76 private:
  77     DECLARE_DYNAMIC_CLASS_NO_COPY(wxClientDC)
  78 };
  79
  80 class WXDLLEXPORT wxPaintDC : public wxClientDC
  81 {
  82 public:
  83     wxPaintDC();
  84
  85     // Create a DC corresponding for painting the window in OnPaint()
  86     wxPaintDC(wxWindow *win);
  87
  88     virtual ~wxPaintDC();
  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 private:
 100     DECLARE_DYNAMIC_CLASS_NO_COPY(wxPaintDC)
 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 WXDLLEXPORT wxPaintDCEx : public wxPaintDC
 110 {
 111 public:
 112     wxPaintDCEx(wxWindow *canvas, WXHDC dc);
 113     virtual ~wxPaintDCEx();
 114 private:
 115     int saveState;
 116
 117     DECLARE_CLASS(wxPaintDCEx)
 118     DECLARE_NO_COPY_CLASS(wxPaintDCEx)
 119 };
 120
 121 #endif
 122     // _WX_DCCLIENT_H_