/////////////////////////////////////////////////////////////////////////////
// Name:        clipboard.h
// Purpose:
// Author:      Robert Roebling
// Id:          $Id$
// Copyright:   (c) 1998 Robert Roebling
// Licence:   	wxWindows licence
/////////////////////////////////////////////////////////////////////////////


#ifndef __GTKCLIPBOARDH__
#define __GTKCLIPBOARDH__

#ifdef __GNUG__
#pragma interface
#endif

#include "wx/defs.h"
#include "wx/object.h"
#include "wx/list.h"
#include "wx/dataobj.h"
#include "wx/control.h"
#include "wx/module.h"

//-----------------------------------------------------------------------------
// classes
//-----------------------------------------------------------------------------

class wxClipboard;
class wxClipboardModule;

//-----------------------------------------------------------------------------
// global data
//-----------------------------------------------------------------------------

extern wxClipboard* wxTheClipboard;

//-----------------------------------------------------------------------------
// wxClipboard
//-----------------------------------------------------------------------------

class wxClipboard: public wxObject
{
  DECLARE_DYNAMIC_CLASS(wxClipboard)

public:
 
  wxClipboard();
  ~wxClipboard();

  // open the clipboard before SetData() and GetData()
  virtual bool Open();
  
  // close the clipboard after SetData() and GetData()
  virtual void Close();
  
  // can be called several times
  virtual bool SetData( wxDataObject *data );

  // format available on the clipboard ? 
  // supply ID if private format, the same as wxPrivateDataObject::SetId() 
  virtual bool IsSupportedFormat( wxDataFormat format, const wxString &id = "" );
  
  // 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();

 // implementation 
 
  GdkAtom    GetTargetAtom( wxDataFormat format, const wxString &id = "" );
 
  bool              m_open;
  
  bool              m_ownsClipboard;
  bool              m_ownsPrimarySelection;
  
  wxList            m_dataObjects;
  GtkWidget        *m_clipboardWidget;
  
  bool              m_formatSupported;
  GdkAtom           m_targetRequested;

  wxDataObject      *m_receivedData;
};

//-----------------------------------------------------------------------------
// wxClipboardModule
//-----------------------------------------------------------------------------

class wxClipboardModule: public wxModule
{
  DECLARE_DYNAMIC_CLASS(wxClipboardModule)
  
public:
    wxClipboardModule() {}
    bool OnInit();
    void OnExit();
};


#endif
    // __GTKCLIPBOARDH__