| gvSIG desktop 1

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

 *

 * Copyright (C) 2006 Instituto de Desarrollo Regional 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.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   Instituto de Desarrollo Regional (Universidad de Castilla La-Mancha)

 *   Campus Universitario s/n

 *   02071 Alabacete

 *   Spain

 *

 *   +34 967 599 200

 */

package org.gvsig.remotesensing.gridmath.gui;

import info.clearthought.layout.TableLayout;

import java.awt.Dimension;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.BorderFactory;

import javax.swing.JButton;

import javax.swing.JPanel;

import javax.swing.JTextArea;

import javax.swing.border.CompoundBorder;

import javax.swing.border.EmptyBorder;

import javax.swing.border.TitledBorder;

/**

 * Clase que implementa la el la interfaz de la calculadora 

 * @author Alejandro Mu?oz

 *

 */

public class KeysPanel extends JPanel implements ActionListener{

        private static final long serialVersionUID = 1L;

        private JButton jButtonMinus;

        private JButton jButtonDivide;

        private JButton jButton2;

        private JButton jButtonDot;

        private JButton jButtonBrackets;

        private JButton jButton0;

        private JButton jButton9;

        private JButton jButton8;

        private JButton jButton7;

        private JButton jButton6;

        private JButton jButton5;

        private JButton jButton4;

        private JButton jButton3;

        private JButton jButton1;

        private JButton jButtonMultiply;

        private JButton jButtonPlus;

        Dimension dButton;

        private JTextArea textExpression = null;

        public KeysPanel(JTextArea m_TextExpression) {

                super();

                textExpression=m_TextExpression;

                dButton=new Dimension();

                dButton=getJButtonBrackets().getPreferredSize();

                Inicializar();

        }

        /**Inicializacion del teclado de la calculadora */

        private void Inicializar(){

                TableLayout thisLayout = new TableLayout(new double[][] {

                                { TableLayout.PREFERRED,1.0, TableLayout.PREFERRED, TableLayout.PREFERRED,

                                                TableLayout.PREFERRED },

                                { TableLayout.PREFERRED, TableLayout.PREFERRED, TableLayout.PREFERRED,

                                                TableLayout.PREFERRED } });

                //Establece la separaci?n entre los elementos

                thisLayout.setHGap(3);

                thisLayout.setVGap(3);

                //asignar el layout al panel actual(this)                

                this.setLayout(thisLayout);

                TitledBorder topBorder = BorderFactory.createTitledBorder("");

            topBorder.setTitlePosition(TitledBorder.TOP);

            this.setBorder(new CompoundBorder(topBorder,new EmptyBorder(1,1,1,1)));

                //a?adir los componentes al panel

                this.add(getJButtonPlus(),"0,0");

                this.add(getJButtonMinus(),"0,1");

                this.add(getJButtonMultiply(),"0,2");

                this.add(getJButtonDivide(),"0,3");

                this.add(getJButton7(),"2,0");

                this.add(getJButton4(),"2,1");

                this.add(getJButton1(),"2,2");

                this.add(getJButton0(),"2,3");

                this.add(getJButton8(),"3,0");

                this.add(getJButton5(),"3,1");

                this.add(getJButton2(),"3,2");

                this.add(getJButtonBrackets(),"3,3");

                this.add(getJButton9(),"4,0");

                this.add(getJButton6(),"4,1");

                this.add(getJButton3(),"4,2");

                this.add(getJButtonDot(),"4,3");

        }

        /**

         * Define todos los eventos de los botones de la calculadora

         */

        public void actionPerformed(ActionEvent e) {

                if (e.getSource().equals(jButton0))  {

                        // Completar con acciones de boton 0

                        textExpression.insert("0", textExpression.getCaretPosition());

                }else if (e.getSource().equals(jButton1))  {

                        // Completar con acciones de boton 1

                        textExpression.insert("1", textExpression.getCaretPosition());

                }

                else if (e.getSource().equals(jButton2))  {

                        // Completar con acciones de boton 2

                        textExpression.insert("2", textExpression.getCaretPosition());        

                }

                else if (e.getSource().equals(jButton3))  {

                        // Completar con acciones de boton 3

                        textExpression.insert("3", textExpression.getCaretPosition());

                }

                else if (e.getSource().equals(jButton4))  {

                        // Completar con acciones de boton 4

                        textExpression.insert("4", textExpression.getCaretPosition());

                }

                else if (e.getSource().equals(jButton5))  {

                        // Completar con acciones de boton 5

                        textExpression.insert("5", textExpression.getCaretPosition());

                }

                else if (e.getSource().equals(jButton6))  {

                        // Completar con acciones de boton 6

                        textExpression.insert("6", textExpression.getCaretPosition());

                }

                else if (e.getSource().equals(jButton7))  {

                        // Completar con acciones de boton 7

                        textExpression.insert("7", textExpression.getCaretPosition());        

                }

                else if (e.getSource().equals(jButton8))  {

                        // Completar con acciones de boton 8

                        textExpression.insert("8", textExpression.getCaretPosition());

                }

                else if (e.getSource().equals(jButton9))  {

                        // Completar con acciones de boton 9

                        textExpression.insert("9", textExpression.getCaretPosition());

                }        

                else if (e.getSource().equals(jButtonPlus))  {

                        // Completar con acciones de boton +

                        textExpression.insert("+", textExpression.getCaretPosition());

                }

                else if (e.getSource().equals(jButtonMinus))  {

                        // Completar con acciones de boton -

                        textExpression.insert("-", textExpression.getCaretPosition());

                }

                else if (e.getSource().equals(jButtonMultiply))  {

                        // Completar con acciones de boton *

                        textExpression.insert("*", textExpression.getCaretPosition());

                }

                else if (e.getSource().equals(jButtonDot))  {

                        // Completar con acciones de boton .

                        textExpression.insert(".", textExpression.getCaretPosition());

                }

                else if (e.getSource().equals(jButtonDivide))  {

                        // Completar con acciones de boton /

                        textExpression.insert("/", textExpression.getCaretPosition());

                }

                else if (e.getSource().equals(jButtonBrackets))  {

                        // Completar con acciones de boton ()

                        textExpression.insert("()", textExpression.getCaretPosition());

                        //coloca le cursor en el centro de los dos par?ntesis

                        textExpression.setCaretPosition(textExpression.getCaretPosition() - 1);

                }

        }

        public JButton getJButton0() {

                if (jButton0==null){

                        jButton0=new JButton();

                        jButton0.setText("0");

                        jButton0.addActionListener(this);

                        jButton0.setPreferredSize(dButton);

                }

                return jButton0;

        }

        public JButton getJButton1() {

                if (jButton1==null){

                        jButton1=new JButton();

                        jButton1.setText("1");

                        jButton1.setPreferredSize(dButton);

                        jButton1.addActionListener(this);

                }

                return jButton1;

        }

        public JButton getJButton2() {

                if (jButton2==null){

                        jButton2=new JButton();

                        jButton2.setText("2");

                        jButton2.setPreferredSize(dButton);

                        jButton2.addActionListener(this);

                }

                return jButton2;

        }

        public JButton getJButton3() {

                if (jButton3==null){

                        jButton3=new JButton();

                        jButton3.setText("3");

                        jButton0.setPreferredSize(dButton);

                        jButton3.addActionListener(this);

                }        

                return jButton3;

        }

        public JButton getJButton4() {

                if (jButton4==null){

                        jButton4=new JButton();

                        jButton4.setText("4");

                        jButton4.setPreferredSize(dButton);

                        jButton4.addActionListener(this);

                }

                return jButton4;

        }

        public JButton getJButton5() {

                if (jButton5==null){

                        jButton5=new JButton();

                        jButton5.setText("5");

                        jButton5.setPreferredSize(dButton);

                        jButton5.addActionListener(this);

                }

                return jButton5;

        }

        public JButton getJButton6() {

                if (jButton6==null){

                        jButton6=new JButton();

                        jButton6.setText("6");

                        jButton6.setPreferredSize(dButton);

                        jButton6.addActionListener(this);

                }

                return jButton6;

        }

        public JButton getJButton7() {

                if (jButton7==null){

                        jButton7=new JButton();

                        jButton7.setText("7");

                        jButton7.setPreferredSize(dButton);

                        jButton7.addActionListener(this);

                }

                return jButton7;

        }

        public JButton getJButton8() {

                if (jButton8==null){

                        jButton8=new JButton();

                        jButton8.setText("8");

                        jButton8.setPreferredSize(dButton);

                        jButton8.addActionListener(this);

                }

                return jButton8;

        }

        public JButton getJButton9() {

                if (jButton9==null){

                        jButton9=new JButton();

                        jButton9.setText("9");

                        jButton9.setPreferredSize(dButton);

                        jButton9.addActionListener(this);

                }

                return jButton9;

        }

        public JButton getJButtonBrackets() {

                if (jButtonBrackets==null){

                        jButtonBrackets=new JButton();

                        jButtonBrackets.setText("( )");

                        jButtonBrackets.addActionListener(this);        

                }

                return jButtonBrackets;

        }

        public JButton getJButtonDivide() {

                if (jButtonDivide==null){

                        jButtonDivide=new JButton();

                        jButtonDivide.setText("/");

                        jButtonDivide.setPreferredSize(dButton);

                        jButtonDivide.addActionListener(this);

                }

                return jButtonDivide;

        }

        public JButton getJButtonDot() {

                if (jButtonDot==null){

                        jButtonDot=new JButton();

                        jButtonDot.setText(".");

                        jButtonDot.setPreferredSize(dButton);

                        jButtonDot.addActionListener(this);

                }

                return jButtonDot;

        }

        public JButton getJButtonMinus() {

                if (jButtonMinus==null){

                        jButtonMinus=new JButton();

                        jButtonMinus.setText("-");

                        jButtonMinus.setPreferredSize(dButton);

                        jButtonMinus.addActionListener(this);

                }

                return jButtonMinus;

        }

        public JButton getJButtonMultiply() {

                if (jButtonMultiply==null){

                        jButtonMultiply=new JButton();

                        jButtonMultiply.setText("*");

                        jButtonMultiply.setPreferredSize(dButton);

                        jButtonMultiply.addActionListener(this);

                }

                return jButtonMultiply;

        }

        public JButton getJButtonPlus() {

                if (jButtonPlus==null){

                        jButtonPlus=new JButton();

                        jButtonPlus.setText("+");

                        jButtonPlus.setPreferredSize(dButton);

                        jButtonPlus.addActionListener(this);

                }

                return jButtonPlus;

        }

}