root / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / layers / LayerChangeSupport.java @ 20098
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.cit.gvsig.fmap.layers; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import com.iver.cit.gvsig.fmap.rendering.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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* @author Vicente Caballero Navarro
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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 ArrayList listeners = new ArrayList(); |
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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 (Iterator iter = listeners.iterator(); iter.hasNext();) { |
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LegendListener listener = (LegendListener) iter.next(); |
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listener.legendChanged(e); |
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} |
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} |
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} |