/**
**
** @RDE_HEADER@
** Event Dispatcher for Qt5 to delegate mouse and keyboard event to another event dispatcher
** $Id$
** $HeadURL$
** $Author$
**
** -----------------------------------------------------------------------------------------------
**
** Hardware-Environment: Intel-PC
** Software-Environment: Windows 7, Qt 5.4. ArcGIS 10.2.5
**
** Language ........: C++ 11
**
** -----------------------------------------------------------------------------------------------
**
** Author ...........: Jörg Turla, SPD G, Tel. 3132
**
** -----------------------------------------------------------------------------------------------
**
** Notes .........:
**
**   15.04.2015, JT  : first edition
**
** -----------------------------------------------------------------------------------------------
*/

#pragma once

#include <QtCore/QPointer>

#include "abstract_event_dispatcher.h"


namespace SituationMap { namespace RB
{

   /**
     @class EventDelegater event_delegater.h
     @brief Event filter that delegates events to another event filter

     Some Qt-Widgets have a special viewport widget. In this case keyboard and mouse events
     are sended to different widgets. To concentrate the event handling in one event filter
     for both types of events, it is necessary to forward events from event filter to another
     one.

     @see AbstractEventDispatcher, EventDispatcher, EventMouseNavigator
   */
   class EventDelegater final : public AbstractEventDispatcher
   {
      Q_OBJECT
      public:

         EventDelegater( QWidget * getEventsFrom, AbstractEventDispatcher * delegateEventTo );

         ~EventDelegater() = default;

         EventDelegater(const EventDelegater &) = delete;
         EventDelegater & operator = (const EventDelegater &) = delete;

      protected:

         QPointer<AbstractEventDispatcher> _delegateEventTo;

         bool eventFilter(QObject*, QEvent*) override;

         void KickTheBucket() override;
   }; /* EventDelegater */


} } /* namespace SituationMap::RB */