Forward port new wxRenderer methods in 2.8 to trunk.

[wxWidgets.git] / include / wx / clipbrd.h

diff --git a/include/wx/clipbrd.h b/include/wx/clipbrd.h
index 6dbcfe87eb0100302f867a06b1a951212c3fae5c..738343ac4da772844499de8f46d0bf67da9af646 100644 (file)
--- a/include/wx/clipbrd.h
+++ b/include/wx/clipbrd.h
@@ -1,13 +1,162 @@
-#ifndef __CLIPBRDH_BASE__
-#define __CLIPBRDH_BASE__
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/clipbrd.h
+// Purpose:     wxClipboad class and clipboard functions
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     19.10.99
+// RCS-ID:      $Id$
+// Copyright:   (c) wxWidgets 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/chartype.h"
+
+class WXDLLIMPEXP_FWD_CORE wxDataFormat;
+class WXDLLIMPEXP_FWD_CORE wxDataObject;
+class WXDLLIMPEXP_FWD_CORE wxClipboard;
+
+// ----------------------------------------------------------------------------
+// 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 WXDLLIMPEXP_CORE wxClipboardBase : public wxObject
+{
+public:
+    wxClipboardBase() { m_usePrimary = false; }
+
+    // open the clipboard before Add/SetData() and GetData()
+    virtual bool Open() = 0;
+
+    // close the clipboard after Add/SetData() and GetData()
+    virtual void Close() = 0;
+
+    // query whether the clipboard is opened
+    virtual bool IsOpened() const = 0;
+
+    // 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 ) = 0;
+
+    // set the clipboard data, this is the same as Clear() followed by
+    // AddData()
+    virtual bool SetData( wxDataObject *data ) = 0;
+
+    // ask if data in correct format is available
+    virtual bool IsSupported( const wxDataFormat& format ) = 0;
+
+    // fill data with data on the clipboard (if available)
+    virtual bool GetData( wxDataObject& data ) = 0;
+
+    // clears wxTheClipboard and the system's clipboard if possible
+    virtual void Clear() = 0;
+
+    // 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; }
+
+    // this allows to choose whether we work with CLIPBOARD (default) or
+    // PRIMARY selection on X11-based systems
+    //
+    // on the other ones, working with primary selection does nothing: this
+    // allows to write code which sets the primary selection when something is
+    // selected without any ill effects (i.e. without overwriting the
+    // clipboard which would be wrong on the platforms without X11 PRIMARY)
+    virtual void UsePrimarySelection(bool usePrimary = false)
+    {
+        m_usePrimary = usePrimary;
+    }
+
+    // return true if we're using primary selection
+    bool IsUsingPrimarySelection() const { return m_usePrimary; }
+
+    // Returns global instance (wxTheClipboard) of the object:
+    static wxClipboard *Get();
+
+
+    // don't use this directly, it is public for compatibility with some ports
+    // (wxX11, wxMotif, ...) only
+    bool m_usePrimary;
+};
+
+// ----------------------------------------------------------------------------
+// globals
+// ----------------------------------------------------------------------------
+
+// The global clipboard object - backward compatible access macro:
+#define wxTheClipboard   (wxClipboard::Get())
+
+// ----------------------------------------------------------------------------
+// include platform-specific class declaration
+// ----------------------------------------------------------------------------
 
 #if defined(__WXMSW__)
-#include "wx/msw/clipbrd.h"
+    #include "wx/msw/clipbrd.h"
 #elif defined(__WXMOTIF__)
-#include "wx/xt/clipbrd.h"
+    #include "wx/motif/clipbrd.h"
+#elif defined(__WXGTK20__)
+    #include "wx/gtk/clipbrd.h"
 #elif defined(__WXGTK__)
-#include "wx/gtk/clipbrd.h"
+    #include "wx/gtk1/clipbrd.h"
+#elif defined(__WXX11__)
+    #include "wx/x11/clipbrd.h"
+#elif defined(__WXMGL__)
+    #include "wx/mgl/clipbrd.h"
+#elif defined(__WXMAC__)
+    #include "wx/osx/clipbrd.h"
+#elif defined(__WXCOCOA__)
+    #include "wx/cocoa/clipbrd.h"
+#elif defined(__WXPM__)
+    #include "wx/os2/clipbrd.h"
 #endif
 
-#endif
-    // __CLIPBRDH_BASE__
+// ----------------------------------------------------------------------------
+// helpful class for opening the clipboard and automatically closing it
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxClipboardLocker
+{
+public:
+    wxClipboardLocker(wxClipboard *clipboard = (wxClipboard *)NULL)
+    {
+        m_clipboard = clipboard ? clipboard : wxTheClipboard;
+        if ( m_clipboard )
+        {
+            m_clipboard->Open();
+        }
+    }
+
+    bool operator!() const { return !m_clipboard->IsOpened(); }
+
+    ~wxClipboardLocker()
+    {
+        if ( m_clipboard )
+        {
+            m_clipboard->Close();
+        }
+    }
+
+private:
+    wxClipboard *m_clipboard;
+
+    DECLARE_NO_COPY_CLASS(wxClipboardLocker)
+};
+
+#endif // wxUSE_CLIPBOARD
+
+#endif // _WX_CLIPBRD_H_BASE_