svn-gvsig-desktop / tags / v1_1_Build_1012 / libraries / libFMap / src / com / iver / cit / gvsig / fmap / layers / SelectionSupport.java @ 12987
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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 com.iver.cit.gvsig.fmap.operations.selection.LinkSelectionListener; |
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import com.iver.utiles.XMLEntity; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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/**
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* Clase que gestiona las operaci?nes sobre la selecci?n.
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*
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* @author Vicente Caballero Navarro
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*/
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public class SelectionSupport { |
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private FBitSet selection = new FBitSet(); |
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private ArrayList listeners = new ArrayList(); |
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/**
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* Inserta una nueva selecci?n.
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*
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* @param selection FBitSet con la selecci?n.
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*/
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public void setSelection(FBitSet selection) { |
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this.selection = selection;
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fireSelectionEvents(); |
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} |
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/**
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* Devuelve un FBitSet con los ?ndices de los elementos seleccionados.
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*
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* @return FBitSet.
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*/
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public FBitSet getSelection() {
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return selection;
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} |
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/**
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* Devuelve true si el elemento est? seleccionado.
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*
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* @param recordIndex ?ndice del registro.
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*
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* @return True si est? seleccionado.
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*/
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public boolean isSelected(int recordIndex) { |
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return selection.get(recordIndex);
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} |
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/**
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* Elimina la selecci?n.
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*/
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public void clearSelection() { |
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this.selection.clear();
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fireSelectionEvents(); |
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} |
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/**
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* A?ade un SelectionListener al ArrayList de Listeners.
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*
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* @param listener SelectionListener a a?adir.
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*/
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public void addSelectionListener(SelectionListener listener) { |
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if (!listeners.contains(listener))
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listeners.add(listener); |
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} |
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/**
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* Borra el SelectionListener que se le pasa como par?metro del ArrayList
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* de Listener.
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*
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* @param listener SlectionListener a borrar.
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*/
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public void removeSelectionListener(SelectionListener listener) { |
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listeners.remove(listener); |
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} |
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/**
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* Cuando ocurre un evento de cambio en la selecci?n, ?ste puede ser uno de
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* una gran cantidad de eventos. Con el fin de no propagar todos estos
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* eventos, se realiza la propagaci?n de manera manual al final de la
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* "r?faga" de eventos
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*/
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public void fireSelectionEvents() { |
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for (Iterator iter = listeners.iterator(); iter.hasNext();) { |
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SelectionListener listener = (SelectionListener) iter.next(); |
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listener.selectionChanged(new SelectionEvent());
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} |
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} |
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/**
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* Devuelve el XMLEntity con la informaci?n necesaria para reproducir un
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* objeto igual al actual.
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*
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* @return XMLEntity.
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*/
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public XMLEntity getXMLEntity() {
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XMLEntity xml = new XMLEntity();
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xml.putProperty("className",this.getClass().getName()); |
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if (selection != null) { |
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xml.putProperty("numBitSet", selection.cardinality());
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int n = 0; |
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for (int i = 0; i < selection.length(); i++) { |
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if (selection.get(i)) {
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xml.putProperty(String.valueOf(n), i);
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n++; |
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} |
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} |
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} |
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return xml;
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} |
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/**
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* A partir del XMLEntity reproduce la selecci?n.
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*
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* @param xml DOCUMENT ME!
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*/
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public void setXMLEntity(XMLEntity xml) { |
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int numBitSet = xml.getIntProperty("numBitSet"); |
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if (numBitSet != 0) { |
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for (int i = 0; i < numBitSet; i++) { |
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selection.set(xml.getIntProperty(String.valueOf(i)));
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} |
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} |
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} |
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/**
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* A partir del XMLEntity reproduce la selecci?n.
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*
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* @param xml DOCUMENT ME!
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*/
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public void setXMLEntity03(XMLEntity xml) { |
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int numBitSet = xml.getIntProperty("numBitSet"); |
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if (numBitSet != 0) { |
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for (int i = 0; i < numBitSet; i++) { |
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selection.set(xml.getIntProperty(String.valueOf(i)));
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} |
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} |
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} |
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public void removeLinkSelectionListener() { |
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for (int i=0;i<listeners.size();i++){ |
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if (listeners.get(i) instanceof LinkSelectionListener) |
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listeners.remove(listeners.get(i)); |
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} |
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} |
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} |