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;

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.event.KeyListener;

import java.awt.event.MouseListener;

import javax.swing.JPanel;

import javax.swing.JSlider;

import javax.swing.JTextField;

import javax.swing.event.ChangeListener;

import org.gvsig.gui.beans.BaseComponent;

import org.gvsig.gui.beans.slidertext.listeners.SliderTextListener;

/**

 * Barra de deslizamiento con una ventana de texto que tiene el valor de la posici?n de

 * la barra. En este control podr? controlarse mediante la entrada de datos por la caja de

 * texto la posibilidad de introducir valores decimales.

 *  

 * Nacho Brodin (nachobrodin@gmail.com)

 */

public class SliderTextContainer extends BaseComponent{

        private JPanel pText = null;

        private JSlider slider = null;

        private JTextField text = null;

        private int min = 0;

        private int max = 255;

        private int defaultPos = 0;

        private SliderTextListener listener = null;

        private boolean decimal = false;

        /**

         * Contructor

         * @param min Valor m?nimo de la barra

         * @param max Valor m?ximo de la barra

         * @param defaultPos Posici?n por defecto 

         */

        public SliderTextContainer(int min, int max, int defaultPos) {

                super();

                this.min = min;

                this.max = max;

                this.defaultPos = defaultPos;

                initialize();

        }

        /**

         * A?ade un ChangeListener al panel. El m?todo stateChanged del listener registrado

         * ser? ejecutado cuando se accione el slider.

         * @param l

         */

        public void addChangeListener(ChangeListener l){

                listener.changeListenerList.add(l);

        }

        /**

         * A?ade un MouseListener al panel.

         * @param l

         */

        public void addMouseListener(MouseListener l){

                listener.mouseListenerList.add(l);

        }

        /**

         * A?ade un ChangeListener al panel. El m?todo stateChanged del listener registrado

         * ser? ejecutado cuando se accione el slider.

         * @param l

         */

        public void addKeyListener(KeyListener l){

                listener.keyListenerList.add(l);

        }

        /**

         * Asigna un borde al componente con el texto pasado como

         * par?metro

         * @param name

         */

        public void setBorder(String name){

                setBorder(javax.swing.BorderFactory.createTitledBorder(null, name, javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, null, null));

        }

        /**

         * This method initializes this

         * 

         */

        private void initialize() {

                listener = new SliderTextListener(this);

        this.setLayout(new BorderLayout());

        this.add(getSlider(), BorderLayout.CENTER);

        this.add(getPText(), BorderLayout.EAST);

        this.setBorder(javax.swing.BorderFactory.createLineBorder(java.awt.Color.gray,1));

       // setComponentSize(width, height);

        }

        /**

         * This method initializes jPanel1        

         *         

         * @return javax.swing.JPanel        

         */

        private JPanel getPText() {

                if (pText == null) {

                        pText = new JPanel();

                        GridBagConstraints gridBagConstraints1 = new GridBagConstraints();

                        gridBagConstraints1.insets = new java.awt.Insets(0, 10, 8, 0);

                        pText.setLayout(new GridBagLayout());

                        pText.add(getTextField(), gridBagConstraints1);

                }

                return pText;

        }

        /**

         * This method initializes jSlider        

         *         

         * @return javax.swing.JSlider        

         */

        public JSlider getSlider() {

                if (slider == null) {

                        slider = new JSlider();

                        slider.setMajorTickSpacing(50);

                        slider.setPaintTicks(true);

                        slider.setMinorTickSpacing(10);

                        slider.setMinimum(min);

                        slider.setMaximum(max);

                        slider.setValue(defaultPos);

                        slider.addChangeListener(listener);

                        slider.addMouseListener(listener);

                }

                return slider;

        }

        /**

         * This method initializes jTextField        

         *         

         * @return javax.swing.JTextField        

         */

        public JTextField getTextField() {

                if (text == null) {

                        text = new JTextField();

                        text.setText(defaultPos + "");

                        text.setPreferredSize(new Dimension(40, 26));

                        text.addFocusListener(listener);

                        text.addKeyListener(listener);

                }

                return text;

        }

        public void setComponentSize(int w, int h){

        }

        /**

         * Obtiene el valor del control.

         * @return Valor del control en formato double.

         */

        public double getValue(){

                return Double.valueOf(getTextField().getText()).doubleValue();

        }

        /**

         * Asigna el valor del control.

         * @return Valor del control en formato double.

         */

        public void setValue(double value){

                if(decimal)

                        getTextField().setText(String.valueOf(value));

                else

                        getTextField().setText(String.valueOf((int)value));

                getSlider().setValue((int)value);

        }

        /**

         * Activa o desactiva el control del panel

         * @param active

         */

        public void setControlEnabled(boolean active){

                slider.setEnabled(active);

                getTextField().setEnabled(active);

                if(active == false){

                        getTextField().setBackground(pText.getBackground());

                }else{

                        getTextField().setBackground(java.awt.Color.white);

                }        

        }

        /**

         * Asigna el flag que dice si el valor del campo de texto ser? 

         * decimal o entero

         * @param dec true si se admiten valores decimales y false si no se admiten

         */

        public void setDecimal (boolean dec){

                decimal = dec;

                String s = getTextField().getText();

                if(dec)

                        getTextField().setText((s +".0"));

                else{

                        int index = s.lastIndexOf(".");

                        if(index == -1 || index == 0)

                                index = s.length() - 1;

                        getTextField().setText(s.substring(0, index + 1));

                }

        }

        /**

         * Obtiene el flag que dice si el valor del campo de texto es 

         * decimal o entero

         * @return true si se admiten valores decimales y false si no se admiten

         */

        public boolean getDecimal (){

                return decimal;

        }

        /**

         * Obtiene el valor m?ximo del slider

         * @return Entero con el valor m?ximo

         */

        public int getMax() {

                return max;

        }

        /**

         * Asigna el valor m?ximo del slider

         * @param Entero con el valor m?ximo

         */

        public void setMax(int max) {

                this.max = max;

        }

        /**

         * Obtiene el valor m?nimo del slider

         * @return Entero con el valor m?nimo

         */

        public int getMin() {

                return min;

        }

        /**

         * Asigna el valor m?nimo del slider

         * @param Entero con el valor m?nimo

         */

        public void setMin(int min) {

                this.min = min;

        }

}