/data/gitorious.org/libyui/libyui-master/src/YSimpleEventHandler.h

/**************************************************************************
Copyright (C) 2000 - 2010 Novell, Inc.
All Rights Reserved.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
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**************************************************************************/


/*---------------------------------------------------------------------\
|                                                                      |
|                      __   __    ____ _____ ____                      |
|                      \ \ / /_ _/ ___|_   _|___ \                     |
|                       \ V / _` \___ \ | |   __) |                    |
|                        | | (_| |___) || |  / __/                     |
|                        |_|\__,_|____/ |_| |_____|                    |
|                                                                      |
|                               core system                            |
|                                                        (C) SuSE GmbH |
\----------------------------------------------------------------------/

  File:         YSimpleEventHandler.h

  Author:       Stefan Hundhammer <sh@suse.de>

/-*/

#ifndef YSimpleEventHandler_h
#define YSimpleEventHandler_h


class YEvent;
class YWidget;


class YSimpleEventHandler
{
public:

    YSimpleEventHandler();

    virtual ~YSimpleEventHandler();

    void sendEvent( YEvent * event_disown );

    bool eventPendingFor( YWidget * widget ) const;

    YEvent * pendingEvent() const { return _pendingEvent; }

    YEvent * consumePendingEvent();

    void deletePendingEventsFor( YWidget * widget );

    void clear();

    void blockEvents( bool block = true );

    void unblockEvents() { blockEvents( false ); }

    bool eventsBlocked() const { return _eventsBlocked; }

    void deleteEvent( YEvent * event );


protected:

    // Data members

    YEvent *    _pendingEvent;
    bool        _eventsBlocked;
};




#endif // YSimpleEventHandler_h