LCOV - code coverage report
Current view: top level - slideshow/source/engine/shapes - intrinsicanimationactivity.cxx (source / functions) Hit Total Coverage
Test: commit 10e77ab3ff6f4314137acd6e2702a6e5c1ce1fae Lines: 1 78 1.3 %
Date: 2014-11-03 Functions: 2 18 11.1 %
Legend: Lines: hit not hit

          Line data    Source code
       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             : 
      21             : #include <canvas/debug.hxx>
      22             : #include <tools/diagnose_ex.h>
      23             : #include <canvas/verbosetrace.hxx>
      24             : 
      25             : #include "drawshapesubsetting.hxx"
      26             : #include "subsettableshapemanager.hxx"
      27             : #include "eventqueue.hxx"
      28             : #include "eventmultiplexer.hxx"
      29             : #include "intrinsicanimationactivity.hxx"
      30             : #include "intrinsicanimationeventhandler.hxx"
      31             : 
      32             : #include <boost/noncopyable.hpp>
      33             : #include <boost/enable_shared_from_this.hpp>
      34             : #include <boost/weak_ptr.hpp>
      35             : 
      36             : namespace slideshow
      37             : {
      38             :     namespace internal
      39             :     {
      40             :         /** Activity for intrinsic shape animations
      41             : 
      42             :             This is an Activity interface implementation for intrinsic
      43             :             shape animations. Intrinsic shape animations are
      44             :             animations directly within a shape, e.g. drawing layer
      45             :             animations, or GIF animations.
      46             :          */
      47           0 :         class IntrinsicAnimationActivity : public Activity,
      48             :                                            public boost::enable_shared_from_this<IntrinsicAnimationActivity>,
      49             :                                            private boost::noncopyable
      50             :         {
      51             :         public:
      52             :             /** Create an IntrinsicAnimationActivity.
      53             : 
      54             :                 @param rContext
      55             :                 Common slideshow objects
      56             : 
      57             :                 @param rDrawShape
      58             :                 Shape to control the intrinsic animation for
      59             : 
      60             :                 @param rWakeupEvent
      61             :                 Externally generated wakeup event, to set this
      62             :                 activity to sleep during inter-frame intervals. Must
      63             :                 come from the outside, since wakeup event and this
      64             :                 object have mutual references to each other.
      65             : 
      66             :                 @param rTimeouts
      67             :                 Vector of timeout values, to wait before the next
      68             :                 frame is shown.
      69             :              */
      70             :             IntrinsicAnimationActivity( const SlideShowContext&         rContext,
      71             :                                         const DrawShapeSharedPtr&       rDrawShape,
      72             :                                         const WakeupEventSharedPtr&     rWakeupEvent,
      73             :                                         const ::std::vector<double>&    rTimeouts,
      74             :                                         ::std::size_t                   nNumLoops,
      75             :                                         CycleMode                       eCycleMode );
      76             : 
      77             :             virtual void dispose() SAL_OVERRIDE;
      78             :             virtual double calcTimeLag() const SAL_OVERRIDE;
      79             :             virtual bool perform() SAL_OVERRIDE;
      80             :             virtual bool isActive() const SAL_OVERRIDE;
      81             :             virtual void dequeued() SAL_OVERRIDE;
      82             :             virtual void end() SAL_OVERRIDE;
      83             : 
      84             :             bool enableAnimations();
      85             : 
      86             :         private:
      87             :             SlideShowContext                        maContext;
      88             :             boost::weak_ptr<DrawShape>              mpDrawShape;
      89             :             WakeupEventSharedPtr                    mpWakeupEvent;
      90             :             IntrinsicAnimationEventHandlerSharedPtr mpListener;
      91             :             ::std::vector<double>                   maTimeouts;
      92             :             CycleMode                               meCycleMode;
      93             :             ::std::size_t                           mnCurrIndex;
      94             :             ::std::size_t                           mnNumLoops;
      95             :             ::std::size_t                           mnLoopCount;
      96             :             bool                                    mbIsActive;
      97             :         };
      98             : 
      99             : 
     100             : 
     101           0 :         class IntrinsicAnimationListener : public IntrinsicAnimationEventHandler,
     102             :                                            private boost::noncopyable
     103             :         {
     104             :         public:
     105           0 :             explicit IntrinsicAnimationListener( IntrinsicAnimationActivity& rActivity ) :
     106           0 :                 mrActivity( rActivity )
     107           0 :             {}
     108             : 
     109             :         private:
     110             : 
     111           0 :             virtual bool enableAnimations() SAL_OVERRIDE { return mrActivity.enableAnimations(); }
     112           0 :             virtual bool disableAnimations() SAL_OVERRIDE { mrActivity.end(); return true; }
     113             : 
     114             :             IntrinsicAnimationActivity& mrActivity;
     115             :         };
     116             : 
     117             : 
     118             : 
     119           0 :         IntrinsicAnimationActivity::IntrinsicAnimationActivity( const SlideShowContext&         rContext,
     120             :                                                                 const DrawShapeSharedPtr&       rDrawShape,
     121             :                                                                 const WakeupEventSharedPtr&     rWakeupEvent,
     122             :                                                                 const ::std::vector<double>&    rTimeouts,
     123             :                                                                 ::std::size_t                   nNumLoops,
     124             :                                                                 CycleMode                       eCycleMode ) :
     125             :             maContext( rContext ),
     126             :             mpDrawShape( rDrawShape ),
     127             :             mpWakeupEvent( rWakeupEvent ),
     128           0 :             mpListener( new IntrinsicAnimationListener(*this) ),
     129             :             maTimeouts( rTimeouts ),
     130             :             meCycleMode( eCycleMode ),
     131             :             mnCurrIndex(0),
     132             :             mnNumLoops(nNumLoops),
     133             :             mnLoopCount(0),
     134           0 :             mbIsActive(false)
     135             :         {
     136           0 :             ENSURE_OR_THROW( rContext.mpSubsettableShapeManager,
     137             :                               "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Invalid shape manager" );
     138           0 :             ENSURE_OR_THROW( rDrawShape,
     139             :                               "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Invalid draw shape" );
     140           0 :             ENSURE_OR_THROW( rWakeupEvent,
     141             :                               "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Invalid wakeup event" );
     142           0 :             ENSURE_OR_THROW( !rTimeouts.empty(),
     143             :                               "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Empty timeout vector" );
     144             : 
     145           0 :             maContext.mpSubsettableShapeManager->addIntrinsicAnimationHandler(
     146           0 :                 mpListener );
     147           0 :         }
     148             : 
     149           0 :         void IntrinsicAnimationActivity::dispose()
     150             :         {
     151           0 :             end();
     152             : 
     153           0 :             if( mpWakeupEvent )
     154           0 :                 mpWakeupEvent->dispose();
     155             : 
     156           0 :             maContext.dispose();
     157           0 :             mpDrawShape.reset();
     158           0 :             mpWakeupEvent.reset();
     159           0 :             maTimeouts.clear();
     160           0 :             mnCurrIndex = 0;
     161             : 
     162           0 :             maContext.mpSubsettableShapeManager->removeIntrinsicAnimationHandler(
     163           0 :                 mpListener );
     164           0 :         }
     165             : 
     166           0 :         double IntrinsicAnimationActivity::calcTimeLag() const
     167             :         {
     168           0 :             return 0.0;
     169             :         }
     170             : 
     171           0 :         bool IntrinsicAnimationActivity::perform()
     172             :         {
     173           0 :             if( !isActive() )
     174           0 :                 return false;
     175             : 
     176           0 :             DrawShapeSharedPtr pDrawShape( mpDrawShape.lock() );
     177           0 :             if( !pDrawShape || !mpWakeupEvent )
     178             :             {
     179             :                 // event or draw shape vanished, no sense living on ->
     180             :                 // commit suicide.
     181           0 :                 dispose();
     182           0 :                 return false;
     183             :             }
     184             : 
     185             :             // mnNumLoops == 0 means infinite looping
     186           0 :             if( mnNumLoops != 0 &&
     187           0 :                 mnLoopCount >= mnNumLoops )
     188             :             {
     189             :                 // #i55294# After finishing the loops, display the first frame
     190           0 :                 pDrawShape->setIntrinsicAnimationFrame( 0 );
     191           0 :                 maContext.mpSubsettableShapeManager->notifyShapeUpdate( pDrawShape );
     192             : 
     193           0 :                 end();
     194             : 
     195           0 :                 return false;
     196             :             }
     197             : 
     198           0 :             ::std::size_t       nNewIndex = 0;
     199           0 :             const ::std::size_t nNumFrames(maTimeouts.size());
     200           0 :             switch( meCycleMode )
     201             :             {
     202             :                 case CYCLE_LOOP:
     203             :                 {
     204           0 :                     pDrawShape->setIntrinsicAnimationFrame( mnCurrIndex );
     205             : 
     206           0 :                     mpWakeupEvent->start();
     207           0 :                     mpWakeupEvent->setNextTimeout( maTimeouts[mnCurrIndex] );
     208             : 
     209           0 :                     mnLoopCount += (mnCurrIndex + 1) / nNumFrames;
     210           0 :                     nNewIndex = (mnCurrIndex + 1) % nNumFrames;
     211           0 :                     break;
     212             :                 }
     213             : 
     214             :                 case CYCLE_PINGPONGLOOP:
     215             :                 {
     216           0 :                     ::std::size_t nTrueIndex( mnCurrIndex < nNumFrames ?
     217             :                                               mnCurrIndex :
     218           0 :                                               2*nNumFrames - mnCurrIndex - 1 );
     219           0 :                     pDrawShape->setIntrinsicAnimationFrame( nTrueIndex );
     220             : 
     221           0 :                     mpWakeupEvent->start();
     222           0 :                     mpWakeupEvent->setNextTimeout( maTimeouts[nTrueIndex] );
     223             : 
     224           0 :                     mnLoopCount += (mnCurrIndex + 1) / (2*nNumFrames);
     225           0 :                     nNewIndex = (mnCurrIndex + 1) % 2*nNumFrames;
     226           0 :                     break;
     227             :                 }
     228             :             }
     229             : 
     230           0 :             maContext.mrEventQueue.addEvent( mpWakeupEvent );
     231           0 :             maContext.mpSubsettableShapeManager->notifyShapeUpdate( pDrawShape );
     232           0 :             mnCurrIndex = nNewIndex;
     233             : 
     234           0 :             return false; // don't reinsert, WakeupEvent will perform
     235             :                           // that after the given timeout
     236             :         }
     237             : 
     238           0 :         bool IntrinsicAnimationActivity::isActive() const
     239             :         {
     240           0 :             return mbIsActive;
     241             :         }
     242             : 
     243           0 :         void IntrinsicAnimationActivity::dequeued()
     244             :         {
     245             :             // not used here
     246           0 :         }
     247             : 
     248           0 :         void IntrinsicAnimationActivity::end()
     249             :         {
     250             :             // there is no dedicated end state, just become inactive:
     251           0 :             mbIsActive = false;
     252           0 :         }
     253             : 
     254           0 :         bool IntrinsicAnimationActivity::enableAnimations()
     255             :         {
     256           0 :             mbIsActive = true;
     257             :             return maContext.mrActivitiesQueue.addActivity(
     258           0 :                 shared_from_this() );
     259             :         }
     260             : 
     261             : 
     262             : 
     263           0 :         ActivitySharedPtr createIntrinsicAnimationActivity(
     264             :             const SlideShowContext&         rContext,
     265             :             const DrawShapeSharedPtr&       rDrawShape,
     266             :             const WakeupEventSharedPtr&     rWakeupEvent,
     267             :             const ::std::vector<double>&    rTimeouts,
     268             :             ::std::size_t                   nNumLoops,
     269             :             CycleMode                       eCycleMode )
     270             :         {
     271             :             return ActivitySharedPtr(
     272             :                 new IntrinsicAnimationActivity(rContext,
     273             :                                                rDrawShape,
     274             :                                                rWakeupEvent,
     275             :                                                rTimeouts,
     276             :                                                nNumLoops,
     277           0 :                                                eCycleMode) );
     278             :         }
     279             :     }
     280           6 : }
     281             : 
     282             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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