wxDataObejct and related changes (won't compile right now)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4089 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/clipbrd.h

@@ -1,21 +1,128 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/clipbrd.h
+// Purpose:     wxClipboad class and clipboard functions
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     19.10.99
+// RCS-ID:      $Id$
+// Copyright:   (c) wxWindows Team
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
 #ifndef _WX_CLIPBRD_H_BASE_
 #define _WX_CLIPBRD_H_BASE_
 
+#include "wx/defs.h"
+
+#if wxUSE_CLIPBOARD
+
+#include "wx/object.h"
+#include "wx/wxchar.h"
+
+class WXDLLEXPORT wxDataFormat;
+class WXDLLEXPORT wxDataObject;
+
+// ----------------------------------------------------------------------------
+// wxClipboard represents the system clipboard. Normally, you should use
+// wxTheClipboard which is a global pointer to the (unique) clipboard.
+//
+// Clipboard can be used to copy data to/paste data from. It works together
+// with wxDataObject.
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxClipboardBase : public wxObject
+{
+public:
+    // open the clipboard before Add/SetData() and GetData()
+    virtual bool Open();
+
+    // close the clipboard after Add/SetData() and GetData()
+    virtual void Close();
+
+    // add to the clipboard data
+    //
+    // NB: the clipboard owns the pointer and will delete it, so data must be
+    //     allocated on the heap
+    virtual bool AddData( wxDataObject *data );
+
+    // set the clipboard data, this is the same as Clear() followed by
+    // AddData()
+    virtual bool SetData( wxDataObject *data );
+
+    // ask if data in correct format is available
+    virtual bool IsSupported( const wxDataFormat& format );
+
+    // fill data with data on the clipboard (if available)
+    virtual bool GetData( wxDataObject& data );
+
+    // clears wxTheClipboard and the system's clipboard if possible
+    virtual void Clear();
+
+    // flushes the clipboard: this means that the data which is currently on
+    // clipboard will stay available even after the application exits (possibly
+    // eating memory), otherwise the clipboard will be emptied on exit
+    virtual bool Flush() { return FALSE; }
+
+    // X11 has two clipboards which get selected by this call. Empty on MSW.
+    virtual void UsePrimarySelection( bool WXUNUSED(primary) = FALSE ) { }
+
+#ifdef WXWIN_COMPATIBILITY_2
+    // deprecated version
+    bool GetData(wxDataObject *data)
+    {
+        wxCHECK_MSG(data, FALSE, wxT("NULL pointer in wxClipboard"));
+
+        return GetData(*data);
+    }
+#endif // WXWIN_COMPATIBILITY_2
+};
+
+// ----------------------------------------------------------------------------
+// include platform-specific class declaration
+// ----------------------------------------------------------------------------
+
 #if defined(__WXMSW__)
-#include "wx/msw/clipbrd.h"
+    #include "wx/msw/clipbrd.h"
 #elif defined(__WXMOTIF__)
-#include "wx/motif/clipbrd.h"
+    #include "wx/motif/clipbrd.h"
 #elif defined(__WXGTK__)
-#include "wx/gtk/clipbrd.h"
+    #include "wx/gtk/clipbrd.h"
 #elif defined(__WXQT__)
-#include "wx/gtk/clipbrd.h"
+    #include "wx/gtk/clipbrd.h"
 #elif defined(__WXMAC__)
-#include "wx/mac/clipbrd.h"
+    #include "wx/mac/clipbrd.h"
 #elif defined(__WXPM__)
-#include "wx/os2/clipbrd.h"
+    #include "wx/os2/clipbrd.h"
 #elif defined(__WXSTUBS__)
-#include "wx/stubs/clipbrd.h"
+    #include "wx/stubs/clipbrd.h"
 #endif
 
-#endif
-    // _WX_CLIPBRD_H_BASE_
+// ----------------------------------------------------------------------------
+// globals
+// ----------------------------------------------------------------------------
+
+// The global clipboard object
+WXDLLEXPORT_DATA(extern wxClipboard *) wxTheClipboard;
+
+// ----------------------------------------------------------------------------
+// wxClipboardModule: module responsible for initializing the global clipboard
+// object
+//
+// NB: IMPLEMENT_DYNAMIC_CLASS() for it is in common/appcmn.cpp
+// ----------------------------------------------------------------------------
+
+class wxClipboardModule : public wxModule
+{
+public:
+    bool OnInit()
+        { wxTheClipboard = new wxClipboard; }
+    void OnExit()
+        { delete wxTheClipboard; wxTheClipboard = (wxClipboard *)NULL; }
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxClipboardModule)
+};
+
+#endif // wxUSE_CLIPBOARD
+
+#endif // _WX_CLIPBRD_H_BASE_