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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _SDR_EVENT_EVENTHANDLER_HXX
#define _SDR_EVENT_EVENTHANDLER_HXX
#include <sal/types.h>
#include <vector>
#include <vcl/timer.hxx>
//////////////////////////////////////////////////////////////////////////////
// predeclarations
namespace sdr
{
namespace event
{
class BaseEvent;
class EventHandler;
// typedefs for a list of BaseEvents
typedef ::std::vector< BaseEvent* > BaseEventVector;
} // end of namespace event
} // end of namespace sdr
//////////////////////////////////////////////////////////////////////////////
namespace sdr
{
namespace event
{
class BaseEvent
{
// the EventHandler this event is registered at
EventHandler& mrEventHandler;
public:
// basic constructor.
BaseEvent(EventHandler& rEventHandler);
// destructor
virtual ~BaseEvent();
// the called method if the event is triggered
virtual void ExecuteEvent() = 0;
};
} // end of namespace event
} // end of namespace sdr
//////////////////////////////////////////////////////////////////////////////
namespace sdr
{
namespace event
{
class EventHandler
{
BaseEventVector maVector;
// to allow BaseEvents to use the add/remove functionality
friend class BaseEvent;
// methods to add/remove events. These are private since
// they are used from BaseEvent only.
void AddEvent(BaseEvent& rBaseEvent);
void RemoveEvent(BaseEvent& rBaseEvent);
// access to a event, 0L when no more events
BaseEvent* GetEvent();
public:
// basic constructor.
EventHandler();
// destructor
virtual ~EventHandler();
// Trigger and consume the events
virtual void ExecuteEvents();
// for control
sal_Bool IsEmpty() const;
};
} // end of namespace event
} // end of namespace sdr
//////////////////////////////////////////////////////////////////////////////
namespace sdr
{
namespace event
{
class TimerEventHandler : public EventHandler, public Timer
{
public:
// basic constructor.
TimerEventHandler(sal_uInt32 nTimeout = 1L);
// destructor
virtual ~TimerEventHandler();
// The timer when it is triggered; from class Timer
virtual void Timeout();
// reset the timer
void Restart();
};
} // end of namespace event
} // end of namespace sdr
//////////////////////////////////////////////////////////////////////////////
#endif //_SDR_EVENT_EVENTHANDLER_HXX
// eof
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