Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.raster.swing.buffer.impl.histogram.textincreaser;

import java.awt.Dimension;

import java.awt.FlowLayout;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.util.ArrayList;

import java.util.Iterator;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JPanel;

import javax.swing.JTextField;

/**

 * Nacho Brodin (brodin_ign@gva.es)

 */

public class TextIncreaserContainer extends JPanel implements ActionListener, KeyListener{

        private static final long serialVersionUID = 7570162018139822874L;

        private ArrayList actionCommandListeners = new ArrayList();

        private JTextField tText            = null;

        private JPanel     pButtons         = null;

        private JButton    bmas             = null;

        private JButton    bmenos           = null;

        private JPanel     pGeneral         = null;

        private double     minValue         = 0;

        private double     maxValue         = 100;

        private double     value            = 0.0;

        /**

         * Variable que est? a true si los controles est?n a la derecha

         */

        private boolean    isRight          = true;

        private boolean    bDoCallListeners = true;

        static private int eventId          = Integer.MIN_VALUE;

        /**

         * Creaci?n de un componente TextIncrearserContainer

         * @param width Ancho del componente

         * @param minValue M?nimo valor que puede tomar el texto del control

         * @param maxValue M?ximo valor que puede tomar el texto del control

         * @param right        a true si queremos que los controles se muestren a la derecha del TextBox

         * y false si los queremos a la izquierda

         */

        public TextIncreaserContainer(int width, double minValue, double maxValue, double init, boolean right) {

                super();

                getTText().setPreferredSize(new Dimension(width - 25, (int) getTText().getPreferredSize().getHeight()));

                this.minValue = minValue;

                this.maxValue = maxValue;

                this.isRight = right;

                setValue(init);

                initialize();

        }

        /**

         * This method initializes this

         */

        private void initialize() {

                FlowLayout flowLayout = new FlowLayout();

                flowLayout.setHgap(0);

                flowLayout.setVgap(0);

                FlowLayout flowLayout5 = new FlowLayout();

                flowLayout5.setHgap(0);

                flowLayout5.setVgap(0);

                this.setLayout(flowLayout5);

                this.add(getPGeneral(), null);

        }

        /**

         * Asigna un valor al textBox

         * @param value

         */

        public void setValue(double value){

                this.value = value;

                getTText().setText(Double.toString(value));

        }

        /**

         * Obtiene el valor del textBox

         * @return value

         */

        public double getValue(){

                return value;

        }

        /**

         * This method initializes jTextField

         *

         * @return javax.swing.JTextField

         */

        private JTextField getTText() {

                if (tText == null) {

                        tText = new JTextField();

                        tText.setText(Double.toString(value));

                        tText.setPreferredSize(new java.awt.Dimension(45, (int) tText.getPreferredSize().getHeight()));

                        tText.setHorizontalAlignment(javax.swing.JTextField.RIGHT);

                        tText.addKeyListener(this);

                }

                return tText;

        }

        /**

         * This method initializes jPanel

         *

         * @return javax.swing.JPanel

         */

        private JPanel getPButtons() {

                if (pButtons == null) {

                        GridBagConstraints gridBagConstraints3 = new GridBagConstraints();

                        gridBagConstraints3.insets = new java.awt.Insets(0,0,0,0);

                        gridBagConstraints3.gridy = 1;

                        gridBagConstraints3.gridx = 0;

                        GridBagConstraints gridBagConstraints2 = new GridBagConstraints();

                        gridBagConstraints2.insets = new java.awt.Insets(0,0,0,0);

                        gridBagConstraints2.gridy = 0;

                        gridBagConstraints2.gridx = 0;

                        pButtons = new JPanel();

                        pButtons.setLayout(new GridBagLayout());

                        pButtons.add(getBmas(), gridBagConstraints2);

                        pButtons.add(getBmenos(), gridBagConstraints3);

                }

                return pButtons;

        }

        /**

         * This method initializes jButton

         *

         * @return javax.swing.JButton

         */

        private JButton getBmas() {

                if (bmas == null) {

                        bmas = new JButton();

                        bmas.setPreferredSize(new java.awt.Dimension(16, (int) getTText().getPreferredSize().getHeight()/2));

                        bmas.addActionListener(this);

            bmas.setIcon(new ImageIcon(getClass().getResource("mas.png")));

                }

                return bmas;

        }

        /**

         * This method initializes jButton1

         *

         * @return javax.swing.JButton

         */

        private JButton getBmenos() {

                if (bmenos == null) {

                        bmenos = new JButton();

                        bmenos.setPreferredSize(new java.awt.Dimension(16, (int) getTText().getPreferredSize().getHeight()/2));

                        bmenos.addActionListener(this);

                        bmenos.setIcon(new ImageIcon(getClass().getResource("menos.png")));

                }

                return bmenos;

        }

        /**

         * This method initializes jPanel

         *

         * @return javax.swing.JPanel

         */

        private JPanel getPGeneral() {

                if (pGeneral == null) {

                        GridBagConstraints gridBagConstraints1 = new GridBagConstraints();

                        GridBagConstraints gridBagConstraints = new GridBagConstraints();

                        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;

                        if(isRight){

                                gridBagConstraints1.gridx = 1;

                                gridBagConstraints.gridx = 0;

                        }else{

                                gridBagConstraints1.gridx = 0;

                                gridBagConstraints.gridx = 1;

                        }

                        gridBagConstraints.gridy = 0;

                        gridBagConstraints1.gridy = 0;

                        gridBagConstraints.weightx = 1.0;

                        pGeneral = new JPanel();

                        pGeneral.setLayout(new GridBagLayout());

                        pGeneral.add(getTText(), gridBagConstraints);

                        pGeneral.add(getPButtons(), gridBagConstraints1);

                }

                return pGeneral;

        }

        public void actionPerformed(ActionEvent e) {

                if (e.getSource() == bmas) {

                        value ++;

                        checkValues();

                }

                if (e.getSource() == bmenos) {

                        value --;

                        checkValues();

                }

                callValueChangedListeners();

        }

        public void addValueChangedListener(TextIncreaserListener listener) {

                if (!actionCommandListeners.contains(listener))

                        actionCommandListeners.add(listener);

        }

        public void removeValueChangedListener(TextIncreaserListener listener) {

                actionCommandListeners.remove(listener);

        }

        private void callValueChangedListeners() {

                if (!bDoCallListeners)

                        return;

                Iterator acIterator = actionCommandListeners.iterator();

                while (acIterator.hasNext()) {

                        TextIncreaserListener listener = (TextIncreaserListener) acIterator.next();

                        listener.actionValueChanged(new TextIncreaserEvent(this));

                }

                eventId++;

        }

        private void checkValues() {

                if (value >= maxValue) value = maxValue;

                if (value <= minValue) value = minValue;

                getTText().setText(Double.toString(value));

        }

        public void keyPressed(KeyEvent e) {

                if (e.getKeyCode() == 10) {

                        try {

                                value = new Double(getTText().getText()).doubleValue();

                        } catch (NumberFormatException exc) {

                        }

                        checkValues();

                        callValueChangedListeners();

                }

        }

        public void keyReleased(KeyEvent e) {}

        public void keyTyped(KeyEvent e) {}

}