/////////////////////////////////////////////////////////////////////////////
-// Name: clipboard.h
-// Purpose:
-// Author: Robert Roebling
+// Name: wx/gtk/clipboard.h
+// Purpose: wxClipboard for wxGTK
+// Author: Robert Roebling, Vadim Zeitlin
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
+// (c) 2007 Vadim Zeitlin
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
class WXDLLIMPEXP_CORE wxClipboard : public wxClipboardBase
{
public:
+ // there are several clipboards in X11 (and in GDK)
+ enum Kind
+ {
+ Primary,
+ Clipboard
+ };
+
wxClipboard();
virtual ~wxClipboard();
// clears wxTheClipboard and the system's clipboard if possible
virtual void Clear();
- // If primary == TRUE, use primary selection in all further ops,
- // primary == FALSE resets it.
- virtual void UsePrimarySelection(bool primary = TRUE)
- { m_usePrimary = primary; }
-
+
+
// implementation from now on
- bool m_open;
- bool m_ownsClipboard;
- bool m_ownsPrimarySelection;
- wxDataObject *m_data;
+ // --------------------------
+
+ // get our clipboard item (depending on m_usePrimary value)
+ GdkAtom GTKGetClipboardAtom() const;
+
+ // get the data object currently being used
+ wxDataObject *GTKGetDataObject() { return Data(); }
- GtkWidget *m_clipboardWidget; /* for getting and offering data */
- GtkWidget *m_targetsWidget; /* for getting list of supported formats */
- bool m_waiting; /* querying data or formats is asynchronous */
+ // clear the data for the given clipboard kind
+ void GTKClearData(Kind kind);
- bool m_formatSupported;
- GdkAtom m_targetRequested;
- bool m_usePrimary;
- wxDataObject *m_receivedData;
+ // called when selection data is received
+ void GTKOnSelectionReceived(const GtkSelectionData& sel);
+
+ // called when available target information is received
+ bool GTKOnTargetReceived(const wxDataFormat& format);
private:
+ // the data object we're currently using
+ wxDataObject *& Data()
+ {
+ return m_usePrimary ? m_dataPrimary : m_dataClipboard;
+ }
+
+ // set or unset selection ownership
+ bool SetSelectionOwner(bool set = true);
+
+ // add atom to the list of supported targets
+ void AddSupportedTarget(GdkAtom atom);
+
+ // check if the given format is supported
+ bool DoIsSupported(const wxDataFormat& format);
+
+
+ // both of these pointers can be non-NULL simultaneously but we only use
+ // one of them at any moment depending on m_usePrimary value, use Data()
+ // (from inside) or GTKGetDataObject() (from outside) accessors
+ wxDataObject *m_dataPrimary,
+ *m_dataClipboard;
+
+ // this is used to temporarily hold the object passed to our GetData() so
+ // that GTK callbacks could access it
+ wxDataObject *m_receivedData;
+
+ // used to pass information about the format we need from DoIsSupported()
+ // to GTKOnTargetReceived()
+ GdkAtom m_targetRequested;
+
+ GtkWidget *m_clipboardWidget; // for getting and offering data
+ GtkWidget *m_targetsWidget; // for getting list of supported formats
+
+ bool m_open;
+ bool m_formatSupported;
+
+
DECLARE_DYNAMIC_CLASS(wxClipboard)
};