1*3334a7e6SAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*3334a7e6SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*3334a7e6SAndrew Rist * or more contributor license agreements. See the NOTICE file 5*3334a7e6SAndrew Rist * distributed with this work for additional information 6*3334a7e6SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*3334a7e6SAndrew Rist * to you under the Apache License, Version 2.0 (the 8*3334a7e6SAndrew Rist * "License"); you may not use this file except in compliance 9*3334a7e6SAndrew Rist * with the License. You may obtain a copy of the License at 10*3334a7e6SAndrew Rist * 11*3334a7e6SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12*3334a7e6SAndrew Rist * 13*3334a7e6SAndrew Rist * Unless required by applicable law or agreed to in writing, 14*3334a7e6SAndrew Rist * software distributed under the License is distributed on an 15*3334a7e6SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*3334a7e6SAndrew Rist * KIND, either express or implied. See the License for the 17*3334a7e6SAndrew Rist * specific language governing permissions and limitations 18*3334a7e6SAndrew Rist * under the License. 19*3334a7e6SAndrew Rist * 20*3334a7e6SAndrew Rist *************************************************************/ 21*3334a7e6SAndrew Rist 22*3334a7e6SAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir #ifndef _SDR_EVENT_EVENTHANDLER_HXX 25cdf0e10cSrcweir #define _SDR_EVENT_EVENTHANDLER_HXX 26cdf0e10cSrcweir 27cdf0e10cSrcweir #include <sal/types.h> 28cdf0e10cSrcweir 29cdf0e10cSrcweir #include <vector> 30cdf0e10cSrcweir #include <vcl/timer.hxx> 31cdf0e10cSrcweir 32cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////// 33cdf0e10cSrcweir // predeclarations 34cdf0e10cSrcweir 35cdf0e10cSrcweir namespace sdr 36cdf0e10cSrcweir { 37cdf0e10cSrcweir namespace event 38cdf0e10cSrcweir { 39cdf0e10cSrcweir class BaseEvent; 40cdf0e10cSrcweir class EventHandler; 41cdf0e10cSrcweir 42cdf0e10cSrcweir // typedefs for a list of BaseEvents 43cdf0e10cSrcweir typedef ::std::vector< BaseEvent* > BaseEventVector; 44cdf0e10cSrcweir } // end of namespace event 45cdf0e10cSrcweir } // end of namespace sdr 46cdf0e10cSrcweir 47cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////// 48cdf0e10cSrcweir 49cdf0e10cSrcweir namespace sdr 50cdf0e10cSrcweir { 51cdf0e10cSrcweir namespace event 52cdf0e10cSrcweir { 53cdf0e10cSrcweir class BaseEvent 54cdf0e10cSrcweir { 55cdf0e10cSrcweir // the EventHandler this event is registered at 56cdf0e10cSrcweir EventHandler& mrEventHandler; 57cdf0e10cSrcweir 58cdf0e10cSrcweir public: 59cdf0e10cSrcweir // basic constructor. 60cdf0e10cSrcweir BaseEvent(EventHandler& rEventHandler); 61cdf0e10cSrcweir 62cdf0e10cSrcweir // destructor 63cdf0e10cSrcweir virtual ~BaseEvent(); 64cdf0e10cSrcweir 65cdf0e10cSrcweir // the called method if the event is triggered 66cdf0e10cSrcweir virtual void ExecuteEvent() = 0; 67cdf0e10cSrcweir }; 68cdf0e10cSrcweir } // end of namespace event 69cdf0e10cSrcweir } // end of namespace sdr 70cdf0e10cSrcweir 71cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////// 72cdf0e10cSrcweir 73cdf0e10cSrcweir namespace sdr 74cdf0e10cSrcweir { 75cdf0e10cSrcweir namespace event 76cdf0e10cSrcweir { 77cdf0e10cSrcweir class EventHandler 78cdf0e10cSrcweir { 79cdf0e10cSrcweir BaseEventVector maVector; 80cdf0e10cSrcweir 81cdf0e10cSrcweir // to allow BaseEvents to use the add/remove functionality 82cdf0e10cSrcweir friend class BaseEvent; 83cdf0e10cSrcweir 84cdf0e10cSrcweir // methods to add/remove events. These are private since 85cdf0e10cSrcweir // they are used from BaseEvent only. 86cdf0e10cSrcweir void AddEvent(BaseEvent& rBaseEvent); 87cdf0e10cSrcweir void RemoveEvent(BaseEvent& rBaseEvent); 88cdf0e10cSrcweir 89cdf0e10cSrcweir // access to a event, 0L when no more events 90cdf0e10cSrcweir BaseEvent* GetEvent(); 91cdf0e10cSrcweir 92cdf0e10cSrcweir public: 93cdf0e10cSrcweir // basic constructor. 94cdf0e10cSrcweir EventHandler(); 95cdf0e10cSrcweir 96cdf0e10cSrcweir // destructor 97cdf0e10cSrcweir virtual ~EventHandler(); 98cdf0e10cSrcweir 99cdf0e10cSrcweir // Trigger and consume the events 100cdf0e10cSrcweir virtual void ExecuteEvents(); 101cdf0e10cSrcweir 102cdf0e10cSrcweir // for control 103cdf0e10cSrcweir sal_Bool IsEmpty() const; 104cdf0e10cSrcweir }; 105cdf0e10cSrcweir } // end of namespace event 106cdf0e10cSrcweir } // end of namespace sdr 107cdf0e10cSrcweir 108cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////// 109cdf0e10cSrcweir 110cdf0e10cSrcweir namespace sdr 111cdf0e10cSrcweir { 112cdf0e10cSrcweir namespace event 113cdf0e10cSrcweir { 114cdf0e10cSrcweir class TimerEventHandler : public EventHandler, public Timer 115cdf0e10cSrcweir { 116cdf0e10cSrcweir public: 117cdf0e10cSrcweir // basic constructor. 118cdf0e10cSrcweir TimerEventHandler(sal_uInt32 nTimeout = 1L); 119cdf0e10cSrcweir 120cdf0e10cSrcweir // destructor 121cdf0e10cSrcweir virtual ~TimerEventHandler(); 122cdf0e10cSrcweir 123cdf0e10cSrcweir // The timer when it is triggered; from class Timer 124cdf0e10cSrcweir virtual void Timeout(); 125cdf0e10cSrcweir 126cdf0e10cSrcweir // reset the timer 127cdf0e10cSrcweir void Restart(); 128cdf0e10cSrcweir }; 129cdf0e10cSrcweir } // end of namespace event 130cdf0e10cSrcweir } // end of namespace sdr 131cdf0e10cSrcweir 132cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////// 133cdf0e10cSrcweir 134cdf0e10cSrcweir #endif //_SDR_EVENT_EVENTHANDLER_HXX 135cdf0e10cSrcweir 136cdf0e10cSrcweir // eof 137