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| -rw-r--r-- | slideshow/source/engine/animationnodes/basecontainernode.cxx | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/slideshow/source/engine/animationnodes/basecontainernode.cxx b/slideshow/source/engine/animationnodes/basecontainernode.cxx new file mode 100644 index 000000000..709f5392a --- /dev/null +++ b/slideshow/source/engine/animationnodes/basecontainernode.cxx @@ -0,0 +1,222 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + + +#include <basecontainernode.hxx> +#include <com/sun/star/animations/AnimationRestart.hpp> +#include <com/sun/star/animations/AnimationFill.hpp> +#include <eventqueue.hxx> +#include "nodetools.hxx" +#include <delayevent.hxx> +#include <o3tl/safeint.hxx> +#include <sal/log.hxx> + +#include <functional> +#include <algorithm> + +using namespace com::sun::star; + +namespace slideshow::internal { +namespace { +bool isRepeatIndefinite(const uno::Reference<animations::XAnimationNode>& xNode) +{ + return xNode->getRepeatCount().hasValue() && isIndefiniteTiming(xNode->getRepeatCount()); +} + +bool isRestart(const uno::Reference<animations::XAnimationNode>& xNode) +{ + sal_Int16 nRestart = xNode->getRestart(); + return nRestart == animations::AnimationRestart::WHEN_NOT_ACTIVE || + nRestart == animations::AnimationRestart::ALWAYS; +} +} + +BaseContainerNode::BaseContainerNode( + const uno::Reference< animations::XAnimationNode >& xNode, + const BaseContainerNodeSharedPtr& rParent, + const NodeContext& rContext ) + : BaseNode( xNode, rParent, rContext ), + maChildren(), + mnFinishedChildren(0), + mnLeftIterations(0), + mbRepeatIndefinite(isRepeatIndefinite(xNode)), + mbRestart(isRestart(xNode)), + mbDurationIndefinite( isIndefiniteTiming( xNode->getEnd() ) && + isIndefiniteTiming( xNode->getDuration() ) ) +{ +} + +void BaseContainerNode::dispose() +{ + forEachChildNode( std::mem_fn(&Disposable::dispose), -1 ); + maChildren.clear(); + BaseNode::dispose(); +} + +bool BaseContainerNode::init_st() +{ + if( !(getXAnimationNode()->getRepeatCount() >>= mnLeftIterations) ) + mnLeftIterations = 1.0; + return init_children(); +} + +bool BaseContainerNode::init_children() +{ + mnFinishedChildren = 0; + + // initialize all children + return (o3tl::make_unsigned(std::count_if( + maChildren.begin(), maChildren.end(), + std::mem_fn(&AnimationNode::init) )) == + maChildren.size()); +} + +void BaseContainerNode::deactivate_st( NodeState eDestState ) +{ + mnLeftIterations = 0; // in order to make skip effect work correctly + if (eDestState == FROZEN) { + // deactivate all children that are not FROZEN or ENDED: + forEachChildNode( std::mem_fn(&AnimationNode::deactivate), + ~(FROZEN | ENDED) ); + } + else { + // end all children that are not ENDED: + forEachChildNode( std::mem_fn(&AnimationNode::end), ~ENDED ); + } +} + +bool BaseContainerNode::hasPendingAnimation() const +{ + // does any of our children returns "true" on + // AnimationNode::hasPendingAnimation()? + // If yes, we, too, return true + return std::any_of( + maChildren.begin(), maChildren.end(), + std::mem_fn(&AnimationNode::hasPendingAnimation) ); +} + +void BaseContainerNode::appendChildNode( AnimationNodeSharedPtr const& pNode ) +{ + if (! checkValidNode()) + return; + + // register derived classes as end listeners at all children. + // this is necessary to control the children animation + // sequence, and to determine our own end event + if (pNode->registerDeactivatingListener( getSelf() )) { + maChildren.push_back( pNode ); + } +} + +bool BaseContainerNode::isChildNode( AnimationNodeSharedPtr const& pNode ) const +{ + // find given notifier in child vector + VectorOfNodes::const_iterator const iEnd( maChildren.end() ); + VectorOfNodes::const_iterator const iFind( + std::find( maChildren.begin(), iEnd, pNode ) ); + return (iFind != iEnd); +} + +bool BaseContainerNode::notifyDeactivatedChild( + AnimationNodeSharedPtr const& pChildNode ) +{ + OSL_ASSERT( pChildNode->getState() == FROZEN || + pChildNode->getState() == ENDED ); + // early exit on invalid nodes + OSL_ASSERT( getState() != INVALID ); + if( getState() == INVALID ) + return false; + + if (! isChildNode(pChildNode)) { + OSL_FAIL( "unknown notifier!" ); + return false; + } + + std::size_t const nSize = maChildren.size(); + OSL_ASSERT( mnFinishedChildren < nSize ); + ++mnFinishedChildren; + bool bFinished = (mnFinishedChildren >= nSize); + + // Handle repetition here. + if (bFinished) { + if(!mbRepeatIndefinite && mnLeftIterations >= 1.0) + { + mnLeftIterations -= 1.0; + } + if(mnLeftIterations >= 1.0 || mbRestart) + { + // SMIL spec said that "Accumulate" controls whether or not the animation + // is cumulative, but XTimeContainer do not have this attribute, so always + // remove the effect before next repeat. + forEachChildNode(std::mem_fn(&AnimationNode::removeEffect), -1); + + if (mnLeftIterations >= 1.0) + bFinished = false; + + EventSharedPtr aRepetitionEvent = + makeDelay( [this] () { this->repeat(); }, + 0.0, + "BaseContainerNode::repeat"); + getContext().mrEventQueue.addEvent( aRepetitionEvent ); + } + else if (isDurationIndefinite()) + { + if (getFillMode() == animations::AnimationFill::REMOVE) + forEachChildNode(std::mem_fn(&AnimationNode::removeEffect), -1); + deactivate(); + } + } + + return bFinished; +} + +void BaseContainerNode::repeat() +{ + // Prevent repeat event scheduled before deactivation. + if (getState() == FROZEN || getState() == ENDED) + return; + + forEachChildNode( std::mem_fn(&AnimationNode::end), ~ENDED ); + bool bState = init_children(); + if( bState ) + activate_st(); +} + +#if defined(DBG_UTIL) +void BaseContainerNode::showState() const +{ + for(const auto & i : maChildren) + { + BaseNodeSharedPtr pNode = + std::dynamic_pointer_cast<BaseNode>(i); + SAL_INFO("slideshow.verbose", + "Node connection: n" << + debugGetNodeName(this) << + " -> n" << + debugGetNodeName(pNode.get())); + pNode->showState(); + } + + BaseNode::showState(); +} +#endif + +} // namespace slideshow::internal + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |