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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2008 by Sun Microsystems, Inc.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * $RCSfile: scheduler.hxx,v $
+ * $Revision: 1.8 $
+ *
+ * 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_ANIMATION_SCHEDULER_HXX
+#define _SDR_ANIMATION_SCHEDULER_HXX
+
+#include <sal/types.h>
+#include <vcl/timer.hxx>
+#include <svx/svxdllapi.h>
+
+//////////////////////////////////////////////////////////////////////////////
+// event class
+
+namespace sdr
+{
+ namespace animation
+ {
+ class Event
+ {
+ // time of event in ms
+ sal_uInt32 mnTime;
+
+ // pointer for simply linked list
+ Event* mpNext;
+
+ public:
+ // constructor/destructor
+ Event(sal_uInt32 nTime);
+ SVX_DLLPUBLIC virtual ~Event();
+
+ // access to mpNext
+ Event* GetNext() const;
+ void SetNext(Event* pNew);
+
+ // get/set time
+ sal_uInt32 GetTime() const;
+ void SetTime(sal_uInt32 nNew);
+
+ // execute event
+ virtual void Trigger(sal_uInt32 nTime) = 0;
+ };
+ } // end of namespace animation
+} // end of namespace sdr
+
+//////////////////////////////////////////////////////////////////////////////
+// eventlist class
+
+namespace sdr
+{
+ namespace animation
+ {
+ class EventList
+ {
+ // pointer to first entry
+ Event* mpHead;
+
+ public:
+ // constructor/destructor
+ EventList();
+ SVX_DLLPUBLIC virtual ~EventList();
+
+ // insert/remove time dependent
+ void Insert(Event* pNew);
+ void Remove(Event* pOld);
+
+ // clear list
+ void Clear();
+
+ // get first
+ Event* GetFirst();
+ };
+ } // end of namespace animation
+} // end of namespace sdr
+
+//////////////////////////////////////////////////////////////////////////////
+// scheduler class
+
+namespace sdr
+{
+ namespace animation
+ {
+ class Scheduler : public Timer
+ {
+ // time in ms
+ sal_uInt32 mnTime;
+
+ // next delta time
+ sal_uInt32 mnDeltaTime;
+
+ // list of events
+ EventList maList;
+
+ // Flag which remembers if this timer is paused. Default
+ // is false.
+ bool mbIsPaused;
+
+ public:
+ // constructor/destructor
+ Scheduler();
+ SVX_DLLPUBLIC virtual ~Scheduler();
+
+ // From baseclass Timer, the timeout call
+ SVX_DLLPUBLIC virtual void Timeout();
+
+ // get time
+ sal_uInt32 GetTime();
+
+ // #i38135#
+ void SetTime(sal_uInt32 nTime);
+
+ // reset
+ void Reset(sal_uInt32 nTime);
+
+ // execute all ripe events, removes executed ones from the scheduler
+ void triggerEvents();
+
+ // re-start or stop timer according to event list
+ void checkTimeout();
+
+ // insert/remove events, wrapper to EventList methods
+ void InsertEvent(Event* pNew);
+ void RemoveEvent(Event* pOld);
+
+ // get/set pause
+ bool IsPaused() const { return mbIsPaused; }
+ void SetPaused(bool bNew);
+ };
+ } // end of namespace animation
+} // end of namespace sdr
+
+//////////////////////////////////////////////////////////////////////////////
+
+#endif //_SDR_ANIMATION_SCHEDULER_HXX
+
+// eof