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* Copyright (c) 2005-2010 Substance Kirill Grouchnikov. All Rights Reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* o Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* o Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* o Neither the name of Substance Kirill Grouchnikov nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package org.pushingpixels.substance.internal.animation;
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import java.util.HashMap;
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public final class StateTransitionMultiTracker<T> {
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private Map<Comparable<T>, StateTransitionTracker> trackerMap;
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private boolean isInCleaning;
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public StateTransitionMultiTracker() {
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this.trackerMap = new HashMap<Comparable<T>, StateTransitionTracker>();
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public synchronized void clear() {
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this.isInCleaning = true;
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for (StateTransitionTracker tracker : this.trackerMap.values()) {
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tracker.endTransition();
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this.trackerMap.clear();
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this.isInCleaning = false;
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public synchronized int size() {
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return this.trackerMap.size();
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public synchronized StateTransitionTracker getTracker(Comparable<T> id) {
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return this.trackerMap.get(id);
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public synchronized void addTracker(final Comparable<T> id,
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final StateTransitionTracker tracker) {
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this.trackerMap.put(id, tracker);
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// System.out.println("Storing tracker @" + tracker.hashCode() + " for "
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// + tracker.component.getClass().getSimpleName() + ":" + id);
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StateTransitionListener listener = new StateTransitionListener() {
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public void onModelStateTransition(
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StateTransitionEvent stateTransitionEvent) {
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if (!tracker.hasRunningTimelines()) {
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// System.out.println("Removing tracker for " + id);
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trackerMap.remove(id);
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tracker.unregisterModelListeners();
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tracker.removeStateTransitionListener(this);
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public void onFocusStateTransition(
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StateTransitionEvent stateTransitionEvent) {
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if (!tracker.hasRunningTimelines()) {
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// System.out.println("Removing tracker for " + id);
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trackerMap.remove(id);
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tracker.unregisterModelListeners();
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tracker.removeStateTransitionListener(this);
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tracker.addStateTransitionListener(listener);