ContextMenu.h

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// $Id: $
//==========================================================================
//  AIDA Detector description implementation for LCD
//--------------------------------------------------------------------------
// Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
// All rights reserved.
//
// For the licensing terms see $DD4hepINSTALL/LICENSE.
// For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
//
// Author     : M.Frank
//
//==========================================================================
#ifndef DD4HEP_DDEVE_CONTEXTMENU_H
#define DD4HEP_DDEVE_CONTEXTMENU_H

// Framework include files
#include "DD4hep/Callback.h"

// ROOT include files
#include "TClass.h"

// C/C++ include files
#include <string>

/*
 *   DD4hep namespace declaration
 */
namespace DD4hep {

  class ContextMenuHandler : public TObject {
  protected:
    Callback m_call;
    void* m_param;
  public:
    ContextMenuHandler(Callback cb, void* param);
    virtual ~ContextMenuHandler();
    void *param() const { return m_param; }
    void Context(TObject* target);
    ClassDef(ContextMenuHandler,0);    
  };


  class ContextMenu  {
    typedef std::vector<ContextMenuHandler*> Handlers;
    Handlers m_calls;
    TClass* m_class;

    ContextMenu(TClass* cl);
    virtual ~ContextMenu();
    ContextMenu& Add(const std::string& title, Callback cb, void* ud);
  public:
    static ContextMenu& instance(TClass* cl);
    ContextMenu& Clear();
    ContextMenu& AddSeparator();
    template <typename Q,typename T> 
    ContextMenu& Add(const std::string& title, Q* ptr, void (T::*pmf)(TObject*, void* ud), void* ud=0)   {
      return Add(title, Callback(ptr).make(pmf), ud);
    }
    ClassDef(ContextMenu,0);
  };


} /* End namespace DD4hep   */


#endif /* DD4HEP_DDEVE_CONTEXTMENU_H */