include/wx/cocoa/dcclient.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/cocoa/dcclient.h
   3 // Purpose:     wxClientDC, wxPaintDC and wxWindowDC classes
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2003/04/01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 David Elliott
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef __WX_COCOA_DCCLIENT_H__
  13 #define __WX_COCOA_DCCLIENT_H__
  14
  15 #include "wx/dc.h"
  16
  17 // DFE: A while ago I stumbled upon the fact that retrieving the parent
  18 // NSView of the content view seems to return the entire window rectangle
  19 // (including decorations).  Of course, that is not at all part of the
  20 // Cocoa or OpenStep APIs, but it might be a neat hack.
  21 class wxWindowDC: public wxDC
  22 {
  23     DECLARE_DYNAMIC_CLASS(wxWindowDC)
  24 public:
  25     wxWindowDC(void);
  26     // Create a DC corresponding to a window
  27     wxWindowDC(wxWindow *win);
  28     ~wxWindowDC(void);
  29
  30     // NSView specific functions
  31     virtual void Clear();
  32 protected:
  33     wxWindow *m_window;
  34     WX_NSView m_lockedNSView;
  35 // DC stack
  36     virtual bool CocoaLockFocus();
  37     virtual bool CocoaUnlockFocus();
  38     bool CocoaLockFocusOnNSView(WX_NSView nsview);
  39     bool CocoaUnlockFocusOnNSView();
  40 };
  41
  42 class wxClientDC: public wxWindowDC
  43 {
  44     DECLARE_DYNAMIC_CLASS(wxClientDC)
  45 public:
  46     wxClientDC(void);
  47     // Create a DC corresponding to a window
  48     wxClientDC(wxWindow *win);
  49     ~wxClientDC(void);
  50 protected:
  51 // DC stack
  52     virtual bool CocoaLockFocus();
  53     virtual bool CocoaUnlockFocus();
  54 };
  55
  56 class wxPaintDC: public wxWindowDC
  57 {
  58     DECLARE_DYNAMIC_CLASS(wxPaintDC)
  59 public:
  60     wxPaintDC(void);
  61     // Create a DC corresponding to a window
  62     wxPaintDC(wxWindow *win);
  63     ~wxPaintDC(void);
  64 protected:
  65 // DC stack
  66     virtual bool CocoaLockFocus();
  67     virtual bool CocoaUnlockFocus();
  68 };
  69
  70 #endif // __WX_COCOA_DCCLIENT_H__