// @(#)root/qt:$Name:  $:$Id: TQtRootSlot.h,v 1.1 2007/01/26 07:51:09 brun Exp $

// Author: Valery Fine      18/01/2007


/****************************************************************************
** $Id: TQtRootSlot.h,v 1.1 2007/01/26 07:51:09 brun Exp $
**
** Copyright (C) 2007 by Valeri Fine. Brookhaven National Laboratory.
**                                    All rights reserved.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
*****************************************************************************/
//

// The TQRootSlot singleton class introduces the global SLOT to invoke

// the  ROOT command line from the GUI signals

// Optionally one can execute TApplication::Terminate method directly

//

// It provides a Qt slot to attach the the CINT C++ interpreter 

// to any Qt signal

// To execute any C++ statement from the GUI oen should connect 

// his/her Qt signal with the Qt slot of the global instance of this class

//


#ifndef ROOT_TQRootSlot

#define ROOT_TQRootSlot


#ifndef __CINT__

#include <qobject.h>

#else

class QObject;
#define Q_OBJECT

#define slots

#endif


class TQtRootSlot : public QObject {
   Q_OBJECT
private:
   TQtRootSlot (const TQtRootSlot &);
   void operator=(const TQtRootSlot &);
protected:
   static TQtRootSlot *fgTQtRootSlot;
   TQtRootSlot () {} 
public:
   static TQtRootSlot *CintSlot();
   virtual ~TQtRootSlot() {}
   
public slots:
   void ProcessLine(const char *);
   void Terminate(int status) const;
   void Terminate()           const;
   void TerminateAndQuit()    const;

#ifndef __CINT__

signals:
   void Error(int error);
#endif 

};

bool QConnectCint(const QObject *sender, const char *signal);
bool QConnectTerminate( const QObject *sender, const char *signal);
#endif