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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 :
21 : // must be first
22 : #include <canvas/debug.hxx>
23 : #include <canvas/verbosetrace.hxx>
24 :
25 : #include "basecontainernode.hxx"
26 : #include "eventqueue.hxx"
27 : #include "tools.hxx"
28 : #include "nodetools.hxx"
29 : #include "delayevent.hxx"
30 :
31 : #include <boost/bind.hpp>
32 : #include <boost/mem_fn.hpp>
33 : #include <algorithm>
34 :
35 : using namespace com::sun::star;
36 :
37 : namespace slideshow {
38 : namespace internal {
39 :
40 0 : BaseContainerNode::BaseContainerNode(
41 : const uno::Reference< animations::XAnimationNode >& xNode,
42 : const BaseContainerNodeSharedPtr& rParent,
43 : const NodeContext& rContext )
44 : : BaseNode( xNode, rParent, rContext ),
45 : maChildren(),
46 : mnFinishedChildren(0),
47 0 : mbDurationIndefinite( isIndefiniteTiming( xNode->getEnd() ) &&
48 0 : isIndefiniteTiming( xNode->getDuration() ) )
49 : {
50 0 : }
51 :
52 0 : void BaseContainerNode::dispose()
53 : {
54 0 : forEachChildNode( boost::mem_fn(&Disposable::dispose) );
55 0 : maChildren.clear();
56 0 : BaseNode::dispose();
57 0 : }
58 :
59 0 : bool BaseContainerNode::init_st()
60 : {
61 0 : if( !(getXAnimationNode()->getRepeatCount() >>= mnLeftIterations) )
62 0 : mnLeftIterations = 1.0;
63 0 : return init_children();
64 : }
65 :
66 0 : bool BaseContainerNode::init_children()
67 : {
68 0 : mnFinishedChildren = 0;
69 :
70 : // initialize all children
71 : return (std::count_if(
72 : maChildren.begin(), maChildren.end(),
73 0 : boost::mem_fn(&AnimationNode::init) ) ==
74 0 : static_cast<VectorOfNodes::difference_type>(maChildren.size()));
75 : }
76 :
77 0 : void BaseContainerNode::deactivate_st( NodeState eDestState )
78 : {
79 0 : mnLeftIterations = 0; // in order to make skip effect work correctly
80 0 : if (eDestState == FROZEN) {
81 : // deactivate all children that are not FROZEN or ENDED:
82 0 : forEachChildNode( boost::mem_fn(&AnimationNode::deactivate),
83 0 : ~(FROZEN | ENDED) );
84 : }
85 : else {
86 : // end all children that are not ENDED:
87 0 : forEachChildNode( boost::mem_fn(&AnimationNode::end), ~ENDED );
88 : }
89 0 : }
90 :
91 0 : bool BaseContainerNode::hasPendingAnimation() const
92 : {
93 : // does any of our children returns "true" on
94 : // AnimationNode::hasPendingAnimation()?
95 : // If yes, we, too, return true
96 0 : VectorOfNodes::const_iterator const iEnd( maChildren.end() );
97 : return (std::find_if(
98 : maChildren.begin(), iEnd,
99 0 : boost::mem_fn(&AnimationNode::hasPendingAnimation) ) != iEnd);
100 : }
101 :
102 0 : void BaseContainerNode::appendChildNode( AnimationNodeSharedPtr const& pNode )
103 : {
104 0 : if (! checkValidNode())
105 0 : return;
106 :
107 : // register derived classes as end listeners at all children.
108 : // this is necessary to control the children animation
109 : // sequence, and to determine our own end event
110 0 : if (pNode->registerDeactivatingListener( getSelf() )) {
111 0 : maChildren.push_back( pNode );
112 : }
113 : }
114 :
115 0 : bool BaseContainerNode::isChildNode( AnimationNodeSharedPtr const& pNode ) const
116 : {
117 : // find given notifier in child vector
118 0 : VectorOfNodes::const_iterator const iEnd( maChildren.end() );
119 : VectorOfNodes::const_iterator const iFind(
120 0 : std::find( maChildren.begin(), iEnd, pNode ) );
121 0 : return (iFind != iEnd);
122 : }
123 :
124 0 : bool BaseContainerNode::notifyDeactivatedChild(
125 : AnimationNodeSharedPtr const& pChildNode )
126 : {
127 : OSL_ASSERT( pChildNode->getState() == FROZEN ||
128 : pChildNode->getState() == ENDED );
129 : // early exit on invalid nodes
130 : OSL_ASSERT( getState() != INVALID );
131 0 : if( getState() == INVALID )
132 0 : return false;
133 :
134 0 : if (! isChildNode(pChildNode)) {
135 : OSL_FAIL( "unknown notifier!" );
136 0 : return false;
137 : }
138 :
139 0 : std::size_t const nSize = maChildren.size();
140 : OSL_ASSERT( mnFinishedChildren < nSize );
141 0 : ++mnFinishedChildren;
142 0 : bool bFinished = (mnFinishedChildren >= nSize);
143 :
144 : // all children finished, and we've got indefinite duration?
145 : // think of ParallelTimeContainer::notifyDeactivating()
146 : // if duration given, we will be deactivated by some end event
147 : // @see fillCommonParameters()
148 0 : if (bFinished && isDurationIndefinite()) {
149 0 : if( mnLeftIterations >= 1.0 )
150 : {
151 0 : mnLeftIterations -= 1.0;
152 : }
153 0 : if( mnLeftIterations >= 1.0 )
154 : {
155 0 : bFinished = false;
156 : EventSharedPtr aRepetitionEvent =
157 0 : makeDelay( boost::bind( &BaseContainerNode::repeat, this ),
158 : 0.0,
159 : "BaseContainerNode::repeat");
160 0 : getContext().mrEventQueue.addEvent( aRepetitionEvent );
161 : }
162 : else
163 : {
164 0 : deactivate();
165 : }
166 : }
167 :
168 0 : return bFinished;
169 : }
170 :
171 0 : bool BaseContainerNode::repeat()
172 : {
173 0 : forEachChildNode( boost::mem_fn(&AnimationNode::end), ~ENDED );
174 0 : sal_Bool bState = init_children();
175 0 : if( bState )
176 0 : activate_st();
177 0 : return bState;
178 : }
179 :
180 : #if OSL_DEBUG_LEVEL >= 2 && defined(DBG_UTIL)
181 : void BaseContainerNode::showState() const
182 : {
183 : for( std::size_t i=0; i<maChildren.size(); ++i )
184 : {
185 : BaseNodeSharedPtr pNode =
186 : boost::shared_dynamic_cast<BaseNode>(maChildren[i]);
187 : VERBOSE_TRACE(
188 : "Node connection: n0x%X -> n0x%X",
189 : (const char*)this+debugGetCurrentOffset(),
190 : (const char*)pNode.get()+debugGetCurrentOffset() );
191 : pNode->showState();
192 : }
193 :
194 : BaseNode::showState();
195 : }
196 : #endif
197 :
198 : } // namespace internal
199 0 : } // namespace slideshow
200 :
201 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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