Application: gvSIG desktop

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

*/

package org.gvsig.gui.beans.slidertext.listeners;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.FocusEvent;

import java.awt.event.FocusListener;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.util.ArrayList;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

import org.gvsig.gui.beans.slidertext.SliderTextContainer;

/**

 * Manejador de eventos del componente SliderText

 * 

 *@author Nacho Brodin (nachobrodin@gmail.com)

 *

 */

public class SliderTextListener implements ChangeListener, ActionListener, KeyListener, FocusListener, MouseListener{

        private SliderTextContainer                sliderTextContainer = null;

        private boolean                                        disconnectEvent = false;

        public ArrayList                                         changeListenerList = new ArrayList();

        public ArrayList                                         mouseListenerList = new ArrayList();

        public ArrayList                                         keyListenerList = new ArrayList();

        public SliderTextListener(SliderTextContainer panel){

                this.sliderTextContainer = panel;

        }

        public void actionPerformed(ActionEvent e) {

        }

        /**

         * Control del evento de cambio en la posici?n del slider. 

         * Este cambio actualiza el valor de la caja de texto y ejecuta el m?todo stateChanged de los listener

         * registrados.

         */

        public void stateChanged(ChangeEvent e) {

                //Modificamos la caja de texto con el valor de la posici?n del slider

                if(!disconnectEvent){

                        if(!sliderTextContainer.getDecimal())

                                sliderTextContainer.getTextField().setText(sliderTextContainer.getSlider().getValue()+"");

                        else

                                sliderTextContainer.getTextField().setText(sliderTextContainer.getSlider().getValue()+".0");

                }

                disconnectEvent = false;

                //Ejecutamos los listener registrados

                for(int i = 0; i < changeListenerList.size(); i++)

                        ((ChangeListener)changeListenerList.get(i)).stateChanged(e);

        }

        /**

         * Ejecuta el m?todo keyPressed de los listener registrados.

         */

        public void keyPressed(KeyEvent e) {

                //Ejecutamos los listener registrados

                for(int i = 0; i < keyListenerList.size(); i++)

                        ((KeyListener)keyListenerList.get(i)).keyPressed(e);

        }

        /**

         * Ejecuta el m?todo keyReleased de los listener registrados.

         */

        public void keyReleased(KeyEvent e) {

                //Asignamos la nueva posici?n de la barra cuando se modifica el texto

                if(e.getKeyCode() == 10)

                        checkDecimalTextAndUpdateSlider();

                //Ejecutamos los listener registrados

                for(int i = 0; i < keyListenerList.size(); i++)

                        ((KeyListener)keyListenerList.get(i)).keyReleased(e);

        }

        /**

         * Ejecuta el m?todo keyTyped de los listener registrados.

         */

        public void keyTyped(KeyEvent e) {

                //Ejecutamos los listener registrados

                for(int i = 0; i < keyListenerList.size(); i++)

                        ((KeyListener)keyListenerList.get(i)).keyTyped(e);

        }

        public void focusGained(FocusEvent e) {

                // TODO Auto-generated method stub

        }

        public void focusLost(FocusEvent e) {

                checkDecimalTextAndUpdateSlider();

        }

        /**

     * Controla que si el formato introducido en el textfield

     * es numerico. Si lo es se actualiza la posici?n del slider

     */

    private void checkDecimalTextAndUpdateSlider() {

        String text = sliderTextContainer.getTextField().getText();

        double value = 0;

        disconnectEvent = true;

        try {

                if (!text.equals("")){

                value = (Double.parseDouble(text) * 100) / (double)(sliderTextContainer.getMax() - sliderTextContainer.getMin());

                value = Double.valueOf(text).doubleValue();

                if(value < sliderTextContainer.getMin())

                        value = sliderTextContainer.getMin();

                if(value > sliderTextContainer.getMax())

                        value = sliderTextContainer.getMax();

                }

                sliderTextContainer.setValue(value);

        } catch (NumberFormatException exc) {

            System.err.println("Formato no numerico");

            sliderTextContainer.setValue(0.0);

        }

    }

    /**

         * Ejecuta el m?todo mouseClicked de los listener registrados.

         */

        public void mouseClicked(MouseEvent e) {

                //Ejecutamos los listener registrados

                for(int i = 0; i < mouseListenerList.size(); i++)

                        ((MouseListener)mouseListenerList.get(i)).mouseClicked(e);

        }

        /**

         * Ejecuta el m?todo mouseEntered de los listener registrados.

         */

        public void mouseEntered(MouseEvent e) {

                //Ejecutamos los listener registrados

                for(int i = 0; i < mouseListenerList.size(); i++)

                        ((MouseListener)mouseListenerList.get(i)).mouseEntered(e);

        }

        /**

         * Ejecuta el m?todo mouseExited de los listener registrados.

         */

        public void mouseExited(MouseEvent e) {

                //Ejecutamos los listener registrados

                for(int i = 0; i < mouseListenerList.size(); i++)

                        ((MouseListener)mouseListenerList.get(i)).mouseExited(e);

        }

        /**

         * Ejecuta el m?todo mousePressed de los listener registrados.

         */

        public void mousePressed(MouseEvent e) {

                //Ejecutamos los listener registrados

                for(int i = 0; i < mouseListenerList.size(); i++)

                        ((MouseListener)mouseListenerList.get(i)).mousePressed(e);

        }

        /**

         * Ejecuta el m?todo mouseReleased de los listener registrados.

         */

        public void mouseReleased(MouseEvent e) {

                //Ejecutamos los listener registrados

                for(int i = 0; i < mouseListenerList.size(); i++)

                        ((MouseListener)mouseListenerList.get(i)).mouseReleased(e);        

        }

}