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root / trunk / libraries / libUIComponent_praster / src / org / gvsig / gui / beans / slidertext / listeners / SliderTextListener.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) 2005 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.slidertext.listeners;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.awt.event.FocusEvent;
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import java.awt.event.FocusListener;
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import java.awt.event.KeyEvent;
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import java.awt.event.KeyListener;
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import javax.swing.event.ChangeEvent;
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import javax.swing.event.ChangeListener;
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import org.gvsig.gui.beans.slidertext.SliderTextContainer;
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/**
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 * 
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 * @author Nacho Brodin <brodin_ign@gva.es>
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 *
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 */
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public class SliderTextListener implements ChangeListener, ActionListener, KeyListener, FocusListener{
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        private SliderTextContainer                sliderTextContainer = null;
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        private String                                         lastText = "";
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        public SliderTextListener(SliderTextContainer panel){
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                this.sliderTextContainer = panel;
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        }
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        private void initialize(){
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        }
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        public void actionPerformed(ActionEvent e) {
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        }
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        public void stateChanged(ChangeEvent e) {
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                //Modificamos la caja de texto con el valor de la posici?n del slider
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                sliderTextContainer.getText().setText(sliderTextContainer.getSlider().getValue()+"");
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        }
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        public void keyPressed(KeyEvent e) {
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                lastText = sliderTextContainer.getText().getText();
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        }
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        public void keyReleased(KeyEvent e) {
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                validateTextField();
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                //Asignamos la nueva posici?n de la barra cuando se modifica el texto
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                if(e.getKeyCode() == 10){
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                        sliderTextContainer.getSlider().setValue(Double.valueOf(sliderTextContainer.getText().getText()).intValue());
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                }
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        }
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        public void keyTyped(KeyEvent e) {
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                // TODO Auto-generated method stub
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        }
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        public void focusGained(FocusEvent e) {
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                // TODO Auto-generated method stub
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        }
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        public void focusLost(FocusEvent e) {
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                validateTextField();
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        }
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        /**
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         * Comprobamos que los datos introducidos por el texto sean correctos sino 
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         * borramos el ?ltimo caracter
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         */
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        private void validateTextField(){
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                try{
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                        Double.valueOf(sliderTextContainer.getText().getText());
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                }catch(NumberFormatException exc){
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                        if(!sliderTextContainer.getText().getText().equals(""))
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                                sliderTextContainer.getText().setText(lastText);
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                        else
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                                sliderTextContainer.getText().setText("0");
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                }
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        }
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}