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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * 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.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_slideshow.hxx"
+
+#include <canvas/debug.hxx>
+#include <tools/diagnose_ex.h>
+#include <canvas/verbosetrace.hxx>
+
+#include "drawshapesubsetting.hxx"
+#include "subsettableshapemanager.hxx"
+#include "eventqueue.hxx"
+#include "eventmultiplexer.hxx"
+#include "intrinsicanimationactivity.hxx"
+#include "intrinsicanimationeventhandler.hxx"
+
+#include <boost/noncopyable.hpp>
+#include <boost/enable_shared_from_this.hpp>
+#include <boost/weak_ptr.hpp>
+
+namespace slideshow
+{
+ namespace internal
+ {
+ /** Activity for intrinsic shape animations
+
+ This is an Activity interface implementation for intrinsic
+ shape animations. Intrinsic shape animations are
+ animations directly within a shape, e.g. drawing layer
+ animations, or GIF animations.
+ */
+ class IntrinsicAnimationActivity : public Activity,
+ public boost::enable_shared_from_this<IntrinsicAnimationActivity>,
+ private boost::noncopyable
+ {
+ public:
+ /** Create an IntrinsicAnimationActivity.
+
+ @param rContext
+ Common slideshow objects
+
+ @param rDrawShape
+ Shape to control the intrinsic animation for
+
+ @param rWakeupEvent
+ Externally generated wakeup event, to set this
+ activity to sleep during inter-frame intervals. Must
+ come frome the outside, since wakeup event and this
+ object have mutual references to each other.
+
+ @param rTimeouts
+ Vector of timeout values, to wait before the next
+ frame is shown.
+ */
+ IntrinsicAnimationActivity( const SlideShowContext& rContext,
+ const DrawShapeSharedPtr& rDrawShape,
+ const WakeupEventSharedPtr& rWakeupEvent,
+ const ::std::vector<double>& rTimeouts,
+ ::std::size_t nNumLoops,
+ CycleMode eCycleMode );
+
+ virtual void dispose();
+ virtual double calcTimeLag() const;
+ virtual bool perform();
+ virtual bool isActive() const;
+ virtual void dequeued();
+ virtual void end();
+
+ bool enableAnimations();
+
+ private:
+ SlideShowContext maContext;
+ boost::weak_ptr<DrawShape> mpDrawShape;
+ WakeupEventSharedPtr mpWakeupEvent;
+ IntrinsicAnimationEventHandlerSharedPtr mpListener;
+ ::std::vector<double> maTimeouts;
+ CycleMode meCycleMode;
+ ::std::size_t mnCurrIndex;
+ ::std::size_t mnNumLoops;
+ ::std::size_t mnLoopCount;
+ bool mbIsActive;
+ };
+
+ //////////////////////////////////////////////////////////////////////
+
+ class IntrinsicAnimationListener : public IntrinsicAnimationEventHandler,
+ private boost::noncopyable
+ {
+ public:
+ explicit IntrinsicAnimationListener( IntrinsicAnimationActivity& rActivity ) :
+ mrActivity( rActivity )
+ {}
+
+ private:
+
+ virtual bool enableAnimations() { return mrActivity.enableAnimations(); }
+ virtual bool disableAnimations() { mrActivity.end(); return true; }
+
+ IntrinsicAnimationActivity& mrActivity;
+ };
+
+ //////////////////////////////////////////////////////////////////////
+
+ IntrinsicAnimationActivity::IntrinsicAnimationActivity( const SlideShowContext& rContext,
+ const DrawShapeSharedPtr& rDrawShape,
+ const WakeupEventSharedPtr& rWakeupEvent,
+ const ::std::vector<double>& rTimeouts,
+ ::std::size_t nNumLoops,
+ CycleMode eCycleMode ) :
+ maContext( rContext ),
+ mpDrawShape( rDrawShape ),
+ mpWakeupEvent( rWakeupEvent ),
+ mpListener( new IntrinsicAnimationListener(*this) ),
+ maTimeouts( rTimeouts ),
+ meCycleMode( eCycleMode ),
+ mnCurrIndex(0),
+ mnNumLoops(nNumLoops),
+ mnLoopCount(0),
+ mbIsActive(false)
+ {
+ ENSURE_OR_THROW( rContext.mpSubsettableShapeManager,
+ "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Invalid shape manager" );
+ ENSURE_OR_THROW( rDrawShape,
+ "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Invalid draw shape" );
+ ENSURE_OR_THROW( rWakeupEvent,
+ "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Invalid wakeup event" );
+ ENSURE_OR_THROW( !rTimeouts.empty(),
+ "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Empty timeout vector" );
+
+ maContext.mpSubsettableShapeManager->addIntrinsicAnimationHandler(
+ mpListener );
+ }
+
+ void IntrinsicAnimationActivity::dispose()
+ {
+ end();
+
+ if( mpWakeupEvent )
+ mpWakeupEvent->dispose();
+
+ maContext.dispose();
+ mpDrawShape.reset();
+ mpWakeupEvent.reset();
+ maTimeouts.clear();
+ mnCurrIndex = 0;
+
+ maContext.mpSubsettableShapeManager->removeIntrinsicAnimationHandler(
+ mpListener );
+ }
+
+ double IntrinsicAnimationActivity::calcTimeLag() const
+ {
+ return 0.0;
+ }
+
+ bool IntrinsicAnimationActivity::perform()
+ {
+ if( !isActive() )
+ return false;
+
+ DrawShapeSharedPtr pDrawShape( mpDrawShape.lock() );
+ if( !pDrawShape || !mpWakeupEvent )
+ {
+ // event or draw shape vanished, no sense living on ->
+ // commit suicide.
+ dispose();
+ return false;
+ }
+
+ // mnNumLoops == 0 means infinite looping
+ if( mnNumLoops != 0 &&
+ mnLoopCount >= mnNumLoops )
+ {
+ // #i55294# After finishing the loops, display the first frame
+ pDrawShape->setIntrinsicAnimationFrame( 0 );
+ maContext.mpSubsettableShapeManager->notifyShapeUpdate( pDrawShape );
+
+ end();
+
+ return false;
+ }
+
+ ::std::size_t nNewIndex = 0;
+ const ::std::size_t nNumFrames(maTimeouts.size());
+ switch( meCycleMode )
+ {
+ case CYCLE_LOOP:
+ {
+ pDrawShape->setIntrinsicAnimationFrame( mnCurrIndex );
+
+ mpWakeupEvent->start();
+ mpWakeupEvent->setNextTimeout( maTimeouts[mnCurrIndex] );
+
+ mnLoopCount += (mnCurrIndex + 1) / nNumFrames;
+ nNewIndex = (mnCurrIndex + 1) % nNumFrames;
+ break;
+ }
+
+ case CYCLE_PINGPONGLOOP:
+ {
+ ::std::size_t nTrueIndex( mnCurrIndex < nNumFrames ?
+ mnCurrIndex :
+ 2*nNumFrames - mnCurrIndex - 1 );
+ pDrawShape->setIntrinsicAnimationFrame( nTrueIndex );
+
+ mpWakeupEvent->start();
+ mpWakeupEvent->setNextTimeout( maTimeouts[nTrueIndex] );
+
+ mnLoopCount += (mnCurrIndex + 1) / (2*nNumFrames);
+ nNewIndex = (mnCurrIndex + 1) % 2*nNumFrames;
+ break;
+ }
+ }
+
+ maContext.mrEventQueue.addEvent( mpWakeupEvent );
+ maContext.mpSubsettableShapeManager->notifyShapeUpdate( pDrawShape );
+ mnCurrIndex = nNewIndex;
+
+ return false; // don't reinsert, WakeupEvent will perform
+ // that after the given timeout
+ }
+
+ bool IntrinsicAnimationActivity::isActive() const
+ {
+ return mbIsActive;
+ }
+
+ void IntrinsicAnimationActivity::dequeued()
+ {
+ // not used here
+ }
+
+ void IntrinsicAnimationActivity::end()
+ {
+ // there is no dedicated end state, just become inactive:
+ mbIsActive = false;
+ }
+
+ bool IntrinsicAnimationActivity::enableAnimations()
+ {
+ mbIsActive = true;
+ return maContext.mrActivitiesQueue.addActivity(
+ shared_from_this() );
+ }
+
+ //////////////////////////////////////////////////////////////////////
+
+ ActivitySharedPtr createIntrinsicAnimationActivity(
+ const SlideShowContext& rContext,
+ const DrawShapeSharedPtr& rDrawShape,
+ const WakeupEventSharedPtr& rWakeupEvent,
+ const ::std::vector<double>& rTimeouts,
+ ::std::size_t nNumLoops,
+ CycleMode eCycleMode )
+ {
+ return ActivitySharedPtr(
+ new IntrinsicAnimationActivity(rContext,
+ rDrawShape,
+ rWakeupEvent,
+ rTimeouts,
+ nNumLoops,
+ eCycleMode) );
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-21 19:55:07 +0000