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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_SVX_SDR_ANIMATION_SCHEDULER_HXX
      21             : #define INCLUDED_SVX_SDR_ANIMATION_SCHEDULER_HXX
      22             : 
      23             : #include <sal/types.h>
      24             : #include <vcl/timer.hxx>
      25             : #include <svx/svxdllapi.h>
      26             : 
      27             : 
      28             : // event class
      29             : 
      30             : namespace sdr
      31             : {
      32             :     namespace animation
      33             :     {
      34             :         class SVX_DLLPUBLIC Event
      35             :         {
      36             :             // time of event in ms
      37             :             sal_uInt32                                      mnTime;
      38             : 
      39             :             // pointer for linked list sorted by mnTime
      40             :             Event*                                          mpNext;
      41             : 
      42             :         public:
      43             :             // constructor/destructor
      44             :             SAL_DLLPRIVATE explicit Event(sal_uInt32 nTime);
      45             :             virtual ~Event();
      46             : 
      47             :             // access to mpNext
      48           0 :             SAL_DLLPRIVATE Event* GetNext() const {  return mpNext; }
      49             :             SAL_DLLPRIVATE void SetNext(Event* pNew);
      50             : 
      51             :             // get/set time
      52           0 :             SAL_DLLPRIVATE sal_uInt32 GetTime() const {  return mnTime; }
      53             :             void SetTime(sal_uInt32 nNew);
      54             : 
      55             :             // execute event
      56             :             virtual void Trigger(sal_uInt32 nTime) = 0;
      57             :         };
      58             :     } // end of namespace animation
      59             : } // end of namespace sdr
      60             : 
      61             : 
      62             : // eventlist class
      63             : 
      64             : namespace sdr
      65             : {
      66             :     namespace animation
      67             :     {
      68             :         class SVX_DLLPUBLIC EventList
      69             :         {
      70             :             // pointer to first entry
      71             :             Event*                                          mpHead;
      72             : 
      73             :         public:
      74             :             // constructor/destructor
      75             :             SAL_DLLPRIVATE EventList();
      76             :             virtual ~EventList();
      77             : 
      78             :             // insert/remove time dependent
      79             :             SAL_DLLPRIVATE void Insert(Event* pNew);
      80             :             SAL_DLLPRIVATE void Remove(Event* pOld);
      81             : 
      82             :             // clear list
      83             :             SAL_DLLPRIVATE void Clear();
      84             : 
      85             :             // get first
      86           0 :             SAL_DLLPRIVATE Event* GetFirst() {  return mpHead; }
      87             :         };
      88             :     } // end of namespace animation
      89             : } // end of namespace sdr
      90             : 
      91             : 
      92             : // scheduler class
      93             : 
      94             : namespace sdr
      95             : {
      96             :     namespace animation
      97             :     {
      98             :         class SVX_DLLPUBLIC Scheduler : public Timer
      99             :         {
     100             :             // time in ms
     101             :             sal_uInt32                                      mnTime;
     102             : 
     103             :             // next delta time
     104             :             sal_uInt32                                      mnDeltaTime;
     105             : 
     106             :             // list of events
     107             :             EventList                                       maList;
     108             : 
     109             :             // Flag which remembers if this timer is paused. Default
     110             :             // is false.
     111             :             bool                                            mbIsPaused;
     112             : 
     113             :         public:
     114             :             // constructor/destructor
     115             :             SAL_DLLPRIVATE Scheduler();
     116             :             virtual ~Scheduler();
     117             : 
     118             :             // From baseclass Timer, the timeout call
     119             :             virtual void Timeout() SAL_OVERRIDE;
     120             : 
     121             :             // get time
     122       45133 :             SAL_DLLPRIVATE sal_uInt32 GetTime() {  return mnTime; }
     123             : 
     124             :             // #i38135#
     125             :             SAL_DLLPRIVATE void SetTime(sal_uInt32 nTime);
     126             : 
     127             :             // execute all ripe events, removes executed ones from the scheduler
     128             :             SAL_DLLPRIVATE void triggerEvents();
     129             : 
     130             :             // re-start or stop timer according to event list
     131             :             SAL_DLLPRIVATE void checkTimeout();
     132             : 
     133             :             // insert/remove events, wrapper to EventList methods
     134             :             void InsertEvent(Event* pNew);
     135             :             SAL_DLLPRIVATE void RemoveEvent(Event* pOld);
     136             : 
     137             :             // get/set pause
     138           0 :             SAL_DLLPRIVATE bool IsPaused() const { return mbIsPaused; }
     139             :             SAL_DLLPRIVATE void SetPaused(bool bNew);
     140             :         };
     141             :     } // end of namespace animation
     142             : } // end of namespace sdr
     143             : 
     144             : 
     145             : 
     146             : #endif // INCLUDED_SVX_SDR_ANIMATION_SCHEDULER_HXX
     147             : 
     148             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */