| gvSIG desktop 1

package org.gvsig.gui.beans.buttonsPanel;

import java.awt.FlowLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.ArrayList;

import java.util.Iterator;

import javax.swing.JButton;

import javax.swing.JPanel;

import org.gvsig.gui.beans.messages.Messages;

/**

 * <code>ButtonsPanel</code> ofrece un widget con un conjunto de botones

 * preestablecidos, aunque tambi?n se pueden a?adir botones con el m?todo

 * {@link #addButton(String, int)}

 * 

 * @version 03/15/07

 * @author Borja S?nchez Zamorano (borja.sanchez@iver.es)

 */

public class ButtonsPanel extends JPanel {

        private ArrayList buttonsList = new ArrayList();

        static private int eventId = Integer.MIN_VALUE;

        private ArrayList actionCommandListeners = new ArrayList();

        public static final int BUTTON_ACCEPT = 1;

        public static final int BUTTON_CANCEL = 2;

        public static final int BUTTON_APPLY = 3;

        public static final int BUTTON_YES = 4;

        public static final int BUTTON_NO = 5;

        public static final int BUTTON_CLOSE = 6;

        public static final int BUTTON_EXIT = 7;

        public static final int BUTTONS_ACCEPT = 1;

        public static final int BUTTONS_ACCEPTCANCEL = 2;

        public static final int BUTTONS_ACCEPTCANCELAPPLY = 3;

        public static final int BUTTONS_YESNO = 4;

        public static final int BUTTONS_CLOSE = 5;

        public static final int BUTTONS_EXIT = 6;

        public static final int BUTTONS_NONE = 7;

        /**

         * Crea un ButtonsPanel con un Layout por defecto.

         */

        public ButtonsPanel() {

                setLayout(new java.awt.FlowLayout(FlowLayout.RIGHT));

        }

        /**

         * Crea un ButtonsPanel con un Layout por defecto.

         * 

         * @param items Que botones vamos a usar en la creaci?n.

         */

        public ButtonsPanel(int items) {

                setLayout(new java.awt.FlowLayout(FlowLayout.RIGHT));

                switch (items) {

                        case BUTTONS_ACCEPT:

                                addAccept();

                                break;

                        case BUTTONS_ACCEPTCANCEL:

                                addAccept();

                                addCancel();

                                break;

                        case BUTTONS_ACCEPTCANCELAPPLY:

                                addAccept();

                                addCancel();

                                addApply();

                                break;

                        case BUTTONS_YESNO:

                                addYes();

                                addNo();

                                break;

                        case BUTTONS_CLOSE:

                                addClose();

                                break;

                        case BUTTONS_EXIT:

                                addExit();

                                break;

                        case BUTTONS_NONE:

                                break;

                }

        }

        public void addActionListener(ActionListener listener) {

          if (!actionCommandListeners.contains(listener))

            actionCommandListeners.add(listener);

        }

        public void removeActionListener(ActionListener listener) {

          actionCommandListeners.remove(listener);

        }

        private void callActionCommandListeners(String buttonID) {

          Iterator acIterator = actionCommandListeners.iterator();

          while (acIterator.hasNext()) {

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

            listener.actionPerformed(new ActionEvent(this, eventId, buttonID));

          }

          eventId++;

        }

        /**

         * A?adir el boton Aceptar.

         */

        public void addAccept() {

                addButton(Messages.getText("aceptar"), BUTTON_ACCEPT);

        }

        /**

         * A?adir el boton Cancelar.

         */

        public void addCancel() {

                addButton(Messages.getText("cancelar"), BUTTON_CANCEL);

        }

        /**

         * A?adir el boton S?.

         */

        public void addYes() {

                addButton(Messages.getText("si"), BUTTON_YES);

        }

        /**

         * A?adir el boton No.

         */

        public void addNo() {

                addButton(Messages.getText("no"), BUTTON_NO);

        }

        /**

         * A?adir el boton Aplicar.

         */

        public void addApply() {

                addButton(Messages.getText("aplicar"), BUTTON_APPLY);

        }

        /**

         * A?adir el boton Cerrar.

         */

        public void addClose() {

                addButton(Messages.getText("cerrar"), BUTTON_CLOSE);

        }

        /**

         * A?adir el boton Salir.

         */

        public void addExit() {

                addButton(Messages.getText("salir"), BUTTON_EXIT);

        }

        /**

         * A?adimos un bot?n definido por el usuario.

         * 

         * @param text Texto que contendr? el bot?n

         * @param id Entero para identificar los eventos del bot?n

         */

        public void addButton(String text, int id) {

                JButton button = new JButton();

                buttonsList.add(button);

                button.setText(text);

                button.setActionCommand(id + "");

                button.addActionListener(new ActionListener() {

      public void actionPerformed(ActionEvent e) {

              callActionCommandListeners(e.getActionCommand());

      }

                });

                add(button);

        }

        /**

         * Obtener un bot?n por su Entero

         * @param id N?mero del disparador del bot?n

         * @return El bot?n especificado o <code>null</code> si no se encontr? el bot?n.

         */

        public JButton getButton(int id) {

                Iterator acIterator = buttonsList.iterator();

          while (acIterator.hasNext()) {

                  JButton button = (JButton) acIterator.next();

                  if (button.getActionCommand().compareTo(id + "") == 0)

                          return button;

                 }

          return null;

        }

}