root / trunk / libraries / libUIComponent_praster / src / org / gvsig / gui / beans / treelist / listeners / TreeListListener.java @ 8026
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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) 2006 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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package org.gvsig.gui.beans.treelist.listeners; |
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import java.awt.event.MouseEvent; |
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import java.awt.event.MouseListener; |
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import java.awt.event.MouseMotionListener; |
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import java.util.ArrayList; |
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import javax.swing.DefaultListModel; |
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import javax.swing.JList; |
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import javax.swing.JTree; |
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import javax.swing.tree.DefaultMutableTreeNode; |
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import javax.swing.tree.TreePath; |
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import org.gvsig.gui.beans.treelist.event.TreeListEvent; |
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/**
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* Esta clase contiene la l?gica que a?ade elementos desde el arbol a la lista, arrastrando o
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* haciendo doble click sobre el elemento en el arbol, elimina elementos de la lista haciendo
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* doble click sobre ellos o intercambia elementos arrastrando en la lista de una posici?n
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* a otra.
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* Nacho Brodin (brodin_ign@gva.es)
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*/
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public class TreeListListener implements MouseListener, MouseMotionListener, TreeListComponentListener{ |
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private JTree tree = null; |
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private JList list = null; |
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private DefaultMutableTreeNode raiz = null; |
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private ArrayList listListeners = null; |
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private TreeListEvent ev = new TreeListEvent(); |
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/**
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* This method initializes
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*
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*/
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public TreeListListener() {
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} |
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/**
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* Asigna la lista
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* @param list
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*/
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public void setList(JList list) { |
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this.list = list;
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} |
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/**
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* Asigna el arbol
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* @param tree
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*/
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public void setTree(JTree tree) { |
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this.tree = tree;
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} |
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//-------------------------------------------
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//M?TODOS DEL LISTENER
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//A?ADIR A LA LISTA
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//Pinchar con doble click el elemento del arbol
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//Pichar lista -> obtiene draggLabel
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//Arrastrar -> draggActive
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//Released -> !draggActive. Si enterList y se ha arrastrado y se ha pichado un elemento de la lista -> a?ade elemento
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//ELIMINAR DE LA LISTA
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//Pinchar con doble click el elemento de la lista.
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//CAMBIAR EL ORDEN DE LOS ELEMENTOS DE LA LISTA
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//Pinchar lista -> Obtiene index del elem pinchado
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//Arrastrar -> draggElement a true
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//Soltar -> si hay elemento seleccionado estamos dentro de la lista y draggElement es true -> se intercambiar
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/**
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* Variable que contiene la etiqueta seleccionada y arrastrado hasta la lista
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*/
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private String draggLabel = null; |
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/**
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* Variable que est? a true si estamos arrastrando una etiqueta
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*/
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private boolean draggActive = false; |
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/**
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* Variable que est? a true si el rat?n ha entrado en la lista
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*/
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private boolean enterInList = false; |
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/**
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* Elemento seleccionado de la lista. -1 si no hay ninguno;
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*/
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private int selectElement = -1; |
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/**
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* Variable que est? a true si estamos arrastrando un elemento de la lista
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*/
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private boolean draggElement = false; |
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public void mouseClicked(MouseEvent e) { |
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if(e.getSource() == list){
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//Si es doble click y hay alg?n elemento seleccionado en la lista lo eliminamos
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if(e.getClickCount() == 2 && list.getSelectedIndex() != -1){ |
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DefaultListModel model = (DefaultListModel)list.getModel(); |
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//Lanzamos el evento de eliminar un elemento
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ev.resetValues(); |
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ev.setElementRemoved((String)list.getSelectedValue());
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elementRemoved(ev); |
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model.remove(list.getSelectedIndex()); |
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} |
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} |
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if(e.getSource() == tree){
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//Si es doble click y hay alg?n elemento seleccionado en el arbol lo a?adimos
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if(e.getClickCount() == 2 && draggLabel != null){ |
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DefaultListModel model = (DefaultListModel)list.getModel(); |
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//Lanzamos el evento de a?adir un elemento
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ev.resetValues(); |
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ev.setElementAdded(draggLabel); |
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elementAdded(ev); |
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model.addElement(draggLabel); |
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draggLabel = null;
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} |
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} |
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} |
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public void mouseEntered(MouseEvent e) { |
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if(e.getSource() == list)
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enterInList = true;
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} |
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public void mouseExited(MouseEvent e) { |
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if(e.getSource() == list)
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enterInList = false;
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} |
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public void mousePressed(MouseEvent e) { |
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selectElement = -1;
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//Al pulsar sobre el Arbol se captura el elemento seleccionado
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if(e.getSource() == tree){
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TreePath[] tp = tree.getSelectionPaths(); |
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if(tp != null){ |
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String val = tp[0].toString(); |
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//Comprobamos que se haya pinchado sobre una rama
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String[] pathTree = val.split(", "); |
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if(pathTree.length <= 2) |
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draggLabel = null;
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else
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draggLabel = val.substring(val.lastIndexOf(", ") + 2, val.lastIndexOf("]")); |
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} |
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} |
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//Al pulsar sobre la lista capturamos el elemento seleccionado
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if(e.getSource() == list){
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selectElement = list.getSelectedIndex(); |
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if(selectElement < 0) |
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return;
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//Capturamos datos para el evento elementMoved
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ev.resetValues(); |
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ev.setPositionSourceElement(selectElement); |
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ev.setSourceElement((String)((DefaultListModel)list.getModel()).getElementAt(selectElement)); |
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} |
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} |
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public void mouseReleased(MouseEvent e) { |
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//Si se ha pinchado sobre un elemento del arbol y se ha arrastrado lo a?adimos
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if(enterInList){
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if(draggLabel != null && draggActive == true){ |
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DefaultListModel model = (DefaultListModel)list.getModel(); |
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//Lanzamos el evento de a?adir un elemento
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ev.setElementAdded(draggLabel); |
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elementAdded(ev); |
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model.addElement(draggLabel); |
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draggLabel = null;
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} |
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} |
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//Si se est? arrastrando un elemento de la lista se intercambia por el lugar donde se suelta
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if(draggElement && e.getSource() == list && selectElement != -1){ |
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if(list.getSelectedIndex() != selectElement){
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DefaultListModel model = (DefaultListModel)list.getModel(); |
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int posDst = list.getSelectedIndex();
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String elemOrig = (String)model.getElementAt(selectElement); |
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ev.setPositionDestElement(posDst); |
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ev.setDestElement((String)((DefaultListModel)list.getModel()).getElementAt(posDst)); |
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model.remove(selectElement); |
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model.insertElementAt(elemOrig, posDst); |
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} |
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} |
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//Al levantar el click del rat?n desactivamos los arrastres
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draggActive = false;
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draggElement = false;
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selectElement = -1;
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} |
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public void mouseDragged(MouseEvent e) { |
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//Al arrastrar desde el arbor se pone draggActive a true se se ha pinchado antes en un elemento
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if(e.getSource() == tree){
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if(draggLabel != null) |
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draggActive = true;
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} |
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if(e.getSource() == list){
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if(selectElement != -1) |
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draggElement = true;
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} |
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} |
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public void mouseMoved(MouseEvent e) { |
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} |
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/**
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* A?ade la lista de listeners
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* @param l
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*/
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public void setListeners(ArrayList l){ |
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this.listListeners = l;
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} |
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/**
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* Ejecutamos el m?todo elementAdded de todos los listeners registrados
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* @param e TreeListEvent
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*/
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public void elementAdded(TreeListEvent e) { |
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if(listListeners == null || listListeners.size() == 0) |
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return;
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for(int i = 0; i < listListeners.size(); i++) |
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((TreeListComponentListener)listListeners.get(i)).elementAdded(e); |
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} |
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/**
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* Ejecutamos el m?todo elementRemoved de todos los listeners registrados
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* @param e TreeListEvent
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*/
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public void elementRemoved(TreeListEvent e) { |
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if(listListeners == null || listListeners.size() == 0) |
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return;
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for(int i = 0; i < listListeners.size(); i++) |
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((TreeListComponentListener)listListeners.get(i)).elementRemoved(e); |
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} |
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/**
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* Ejecutamos el m?todo elementMoved de todos los listeners registrados
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* @param e TreeListEvent
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*/
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public void elementMoved(TreeListEvent e) { |
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if(listListeners == null || listListeners.size() == 0) |
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return;
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for(int i = 0; i < listListeners.size(); i++) |
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((TreeListComponentListener)listListeners.get(i)).elementMoved(e); |
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} |
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} |