svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.mapcontext / org.gvsig.fmap.mapcontext.api / src / main / java / org / gvsig / fmap / mapcontext / layers / LayerChangeSupport.java @ 42800
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.fmap.mapcontext.layers; |
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import java.util.HashSet; |
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import java.util.Set; |
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import org.gvsig.fmap.mapcontext.rendering.legend.events.LegendChangedEvent; |
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import org.gvsig.fmap.mapcontext.rendering.legend.events.listeners.LegendListener; |
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/**
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* <p>Manages all legend listeners of a layer, notifying them any legend change event produced.</p>
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*
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*/
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public class LayerChangeSupport { |
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/**
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* <p>The legend listeners of a layer.</p>
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*/
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private final Set<LegendListener> listeners = new HashSet<>(); |
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/**
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* <p>Registers a <code>LegendListener</code>.</p>
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*
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* @param listener the legend listener
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*/
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public void addLayerListener(LegendListener listener) { |
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listeners.add(listener); |
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} |
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/**
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* <p>Removes a registered <code>LegendListener</code>.</p>
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*
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* @param listener the legend listener
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*/
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public void removeLayerListener(LegendListener listener) { |
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listeners.remove(listener); |
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} |
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/**
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* <p>Notifies a legend change to all legend listeners registered.</p>
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*
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* @param e a legend event with the new legend and events that compound this one
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*/
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public void callLegendChanged(LegendChangedEvent e) { |
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for (LegendListener listener : listeners) {
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listener.legendChanged(e); |
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} |
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} |
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} |