svn-gvsig-desktop / tags / v2_0_0_Build_2011 / extensions / org.gvsig.symbology / src / main / java / org / gvsig / symbology / fmap / mapcontext / rendering / legend / impl / AbstractLegend.java @ 33580
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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package org.gvsig.symbology.fmap.mapcontext.rendering.legend.impl; |
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import java.lang.ref.Reference; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.gvsig.fmap.mapcontext.MapContextLocator; |
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import org.gvsig.fmap.mapcontext.MapContextManager; |
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import org.gvsig.fmap.mapcontext.rendering.legend.ILegend; |
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import org.gvsig.fmap.mapcontext.rendering.legend.events.LegendContentsChangedListener; |
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import org.gvsig.fmap.mapcontext.rendering.legend.events.SymbolLegendEvent; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolManager; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.observer.Observer; |
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import org.gvsig.tools.observer.impl.BaseWeakReferencingObservable; |
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import org.gvsig.tools.persistence.PersistenceManager; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.exception.PersistenceException; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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* Abstract class that implements the interface for legends.It is considered as
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* the father of all XXXLegends and will implement all the methods that these
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* classes had not developed.
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*
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* @author 2005-2008 jaume dominguez faus - jaume.dominguez@iver.es
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* @author 2008 - pepe vidal salvador - jose.vidal.salvador@iver.es
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* @author 2009- <a href="cordinyana@gvsig.org">C?sar Ordi?ana</a> - gvSIG team
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*/
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public abstract class AbstractLegend implements ILegend { |
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public static final String LEGEND_PERSISTENCE_DEFINITION_NAME = "Legend"; |
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private static final String FIELD_LISTENERS = "listeners"; |
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private static final String FIELD_OBSERVABLE = "observable"; |
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private static final Logger LOGGER = |
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LoggerFactory.getLogger(AbstractLegend.class); |
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/**
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* List of LegendContentsChangedListener.
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*/
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private List<LegendContentsChangedListener> listeners = |
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new ArrayList<LegendContentsChangedListener>(); |
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private BaseWeakReferencingObservable delegateDrawingObservable =
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new BaseWeakReferencingObservable();
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private MapContextManager manager = MapContextLocator.getMapContextManager();
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public MapContextManager getManager() {
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return manager;
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} |
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public SymbolManager getSymbolManager() {
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return manager.getSymbolManager();
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} |
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public void addLegendListener(LegendContentsChangedListener listener) { |
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if (listener != null && !listeners.contains(listener)) |
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listeners.add(listener); |
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} |
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public void removeLegendListener(LegendContentsChangedListener listener) { |
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listeners.remove(listener); |
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} |
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public void fireDefaultSymbolChangedEvent(SymbolLegendEvent event) { |
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for (int i = 0; i < listeners.size(); i++) { |
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((LegendContentsChangedListener) listeners.get(i)) |
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.symbolChanged(event); |
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} |
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} |
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public LegendContentsChangedListener[] getListeners() { |
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return (LegendContentsChangedListener[]) listeners |
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.toArray(new LegendContentsChangedListener[listeners.size()]);
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} |
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public void addDrawingObserver(Observer observer) { |
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delegateDrawingObservable.addObserver(observer); |
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} |
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public void deleteDrawingObserver(Observer observer) { |
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delegateDrawingObservable.deleteObserver(observer); |
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} |
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public void deleteDrawingObservers() { |
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delegateDrawingObservable.deleteObservers(); |
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} |
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public void addObserver(Reference<Observer> ref) { |
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delegateDrawingObservable.addObserver(ref); |
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} |
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public void beginComplexNotification() { |
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delegateDrawingObservable.beginComplexNotification(); |
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} |
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public int countObservers() { |
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return delegateDrawingObservable.countObservers();
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} |
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public void deleteObserver(Reference<Observer> ref) { |
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delegateDrawingObservable.deleteObserver(ref); |
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} |
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public void disableNotifications() { |
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delegateDrawingObservable.disableNotifications(); |
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} |
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public void enableNotifications() { |
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delegateDrawingObservable.enableNotifications(); |
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} |
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public void endComplexNotification() { |
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delegateDrawingObservable.endComplexNotification(); |
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} |
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public boolean inComplex() { |
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return delegateDrawingObservable.inComplex();
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} |
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public boolean isEnabledNotifications() { |
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return delegateDrawingObservable.isEnabledNotifications();
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} |
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public void notifyObservers() { |
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delegateDrawingObservable.notifyObservers(); |
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} |
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public void notifyObservers(Object arg) { |
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delegateDrawingObservable.notifyObservers(arg); |
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} |
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public ILegend cloneLegend() {
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try {
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return (ILegend) clone();
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} catch (CloneNotSupportedException e) { |
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LOGGER.error("Error creating the clone of the legend: " + this, e); |
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} |
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return null; |
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} |
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public Object clone() throws CloneNotSupportedException { |
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AbstractLegend legendClone = (AbstractLegend) super.clone();
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// // Clone listeners
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// List<LegendContentsChangedListener> listeners = getListenersAsList();
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// if (listeners != null) {
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// legendClone.setListeners(new
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// ArrayList<LegendContentsChangedListener>(
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// listeners));
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// }
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//
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// // Clone observable
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// if (getDelegateObservable() != null) {
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// BaseWeakReferencingObservable observableClone =
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// (BaseWeakReferencingObservable) getDelegateObservable().clone();
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// legendClone.setDelegateObservable(observableClone);
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// }
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return legendClone;
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} |
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// private BaseWeakReferencingObservable getDelegateObservable() {
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// return delegateDrawingObservable;
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// }
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// private void setDelegateObservable(BaseWeakReferencingObservable
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// observable) {
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// this.delegateDrawingObservable = observable;
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// }
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// private List<LegendContentsChangedListener> getListenersAsList() {
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// return listeners;
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// }
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// private void setListeners(List<LegendContentsChangedListener> listeners)
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// {
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// this.listeners = listeners;
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// }
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public void loadFromState(PersistentState state) |
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throws PersistenceException {
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// List listeners = (List) state.get(FIELD_LISTENERS);
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// if (listeners != null) {
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// for (int i = 0; i < listeners.size(); i++) {
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// addLegendListener((LegendContentsChangedListener) listeners.get(i));
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// }
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// }
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// BaseWeakReferencingObservable observable =
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// (BaseWeakReferencingObservable) state.get(FIELD_OBSERVABLE);
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// setDelegateObservable(observable);
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} |
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public void saveToState(PersistentState state) throws PersistenceException { |
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// state.set(FIELD_LISTENERS, getListenersAsList());
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// BaseWeakReferencingObservable observable = getDelegateObservable();
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// if (observable != null && observable.countObservers() > 0) {
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// state.set(FIELD_OBSERVABLE, observable);
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// }
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} |
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public static void registerPersistence() { |
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PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
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DynStruct definition = manager.addDefinition( |
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AbstractLegend.class, |
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LEGEND_PERSISTENCE_DEFINITION_NAME, |
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LEGEND_PERSISTENCE_DEFINITION_NAME + " persistence definition",
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null,
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null
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); |
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// Listeners
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definition.addDynFieldList(FIELD_LISTENERS) |
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.setClassOfItems(LegendContentsChangedListener.class); |
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// Observable
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definition.addDynFieldObject(FIELD_OBSERVABLE) |
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.setClassOfValue(BaseWeakReferencingObservable.class); |
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} |
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} |