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Diffstat (limited to 'include/svx/sdr/event/eventhandler.hxx')
-rw-r--r-- | include/svx/sdr/event/eventhandler.hxx | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/include/svx/sdr/event/eventhandler.hxx b/include/svx/sdr/event/eventhandler.hxx new file mode 100644 index 000000000000..91ac5491e5c6 --- /dev/null +++ b/include/svx/sdr/event/eventhandler.hxx @@ -0,0 +1,132 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#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 + 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 + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |