wxDisplay cleanup/rewrite:

- wxDisplay is now a concrete class and uses a pImpl-based design
- got rid of four duplicate but subtly different versions of trivial
  single display-only wxDisplay implementation (but 2 versions of Mac
  Classic and Mac CoreGraphics implementations each still remain...)
- assorted code simplifications and memory leaks fixes


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@38127 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/cocoa/display.h

@@ -1,45 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////
-// Name:        include/wx/cocoa/display.h
-// Purpose:     wxDisplay class for wxCocoa
-// Author:      Ryan Norton
-// Modified by: 
-// Created:     2004-10-03
-// RCS-ID:      $Id$
-// Copyright:   (c) Ryan Norton
-// Licence:     wxWindows licence
-/////////////////////////////////////////////////////////////////////////////
-
-#ifndef _WX_COCOA_DISPLAY_H_
-#define _WX_COCOA_DISPLAY_H_
-
-#include "wx/object.h"
-#include "wx/display.h"
-
-class wxRect;
-class wxString;
-
-class WXDLLEXPORT wxDisplay : public wxDisplayBase
-{
-public:
-    wxDisplay ( size_t index = 0 );
-
-    ~wxDisplay();
-
-    virtual wxRect GetGeometry() const;
-    virtual int GetDepth() const;
-    virtual wxString GetName() const;
-
-    virtual wxArrayVideoModes
-        GetModes(const wxVideoMode& mode = wxDefaultVideoMode) const;
-
-    virtual wxVideoMode GetCurrentMode() const;
-
-    virtual bool ChangeMode(const wxVideoMode& mode = wxDefaultVideoMode);
-
-private:
-    struct _CGDirectDisplayID * m_id;
-
-    DECLARE_NO_COPY_CLASS(wxDisplay)
-};
-
-#endif // _WX_COCOA_DISPLAY_H_