Application: gvSIG desktop

import org.gvsig.coreplugin.preferences.general.DirExtensionsPage;

		ep.append("DirExtensionsPage", "", new DirExtensionsPage());

//		this.extensionPoints.add("AplicationPreferences","DirExtensionsPage", new DirExtensionsPage());

/**

 * 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.coreplugin.preferences.general;

import java.awt.BorderLayout;

import java.awt.Component;

import java.awt.Dimension;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import javax.swing.BorderFactory;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JFileChooser;

import javax.swing.JPanel;

import javax.swing.JTextField;

import javax.swing.border.TitledBorder;

import org.gvsig.andami.Launcher;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.preferences.AbstractPreferencePage;

import org.gvsig.utils.GenericFileFilter;

public class DirExtensionsPage extends AbstractPreferencePage {

	private ImageIcon icon;

	private String id;

	private JPanel pN = null;

	private JPanel pC = null;

	private boolean changed = false;

	private JPanel jPanel = null;

	private JTextField jTextField = null;

	private JButton jButton = null;

	private String pluginDirectory;

	public DirExtensionsPage() {

		super();

		initialize();

		id = this.getClass().getName();

		setParentID(GeneralPage.class.getName());

	}

	private void initialize() {

		icon = PluginServices.getIconTheme().get("edit-setup-dirextension");

	    this.setLayout(new BorderLayout());

	    this.setSize(new java.awt.Dimension(386,177));

	    this.add(getPN(), java.awt.BorderLayout.NORTH);

	    this.add(getPC(), java.awt.BorderLayout.CENTER);

	}

	public String getID() {

		return id;

	}

	public String getTitle() {

		return PluginServices.getText(this, "directorio_extensiones");

	}

	public JPanel getPanel() {

		return this;

	}

	public void initializeValues() {

		pluginDirectory = Launcher.getAndamiConfig().getPluginsDirectory();

		getJTextField().setText(pluginDirectory);

	}

	public void storeValues() {

//		Se escribe el directorio de los plugins

		pluginDirectory = getJTextField().getText();

		Launcher.getAndamiConfig().setPluginsDirectory(pluginDirectory);

	}

	public void initializeDefaults() {

	}

	public ImageIcon getIcon() {

		return icon;

	}

	/**

	 * This method initializes pN

	 *

	 * @return javax.swing.JPanel

	 */

	private JPanel getPN() {

		if (pN == null) {

			pN = new JPanel();

		}

		return pN;

	}

	/**

	 * This method initializes pC

	 *

	 * @return javax.swing.JPanel

	 */

	private JPanel getPC() {

		if (pC == null) {

			pC = new JPanel();

			pC.add(getJPanel(), null);

		}

		return pC;

	}

	/**

	 * This method initializes jPanel

	 *

	 * @return javax.swing.JPanel

	 */

	private JPanel getJPanel() {

		if (jPanel == null) {

			jPanel = new JPanel();

			jPanel.setBorder(BorderFactory.createTitledBorder(null, PluginServices.getText(this, "directorio"), TitledBorder.DEFAULT_JUSTIFICATION, TitledBorder.DEFAULT_POSITION, null, null));

			jPanel.add(getJTextField(), null);

			jPanel.add(getJButton(), null);

		}

		return jPanel;

	}

	/**

	 * This method initializes jTextField

	 *

	 * @return javax.swing.JTextField

	 */

	private JTextField getJTextField() {

		if (jTextField == null) {

			jTextField = new JTextField();

			jTextField.setPreferredSize(new Dimension(200, 20));

			jTextField.setText(pluginDirectory);

			jTextField.addKeyListener(new KeyListener() {

               	public void keyPressed(KeyEvent e) { changed = true; }

				public void keyReleased(KeyEvent e) { changed = true; }

				public void keyTyped(KeyEvent e){ changed = true; }

			});

		}

		return jTextField;

	}

	/**

	 * This method initializes jButton

	 *

	 * @return javax.swing.JButton

	 */

	private JButton getJButton() {

		if (jButton == null) {

			jButton = new JButton();

			jButton.setText(PluginServices.getText(this, "examinar"));

			jButton.addActionListener(new java.awt.event.ActionListener() {

				public void actionPerformed(java.awt.event.ActionEvent e) {

					JFileChooser jfc = new JFileChooser();

					jfc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);

					jfc.addChoosableFileFilter(new GenericFileFilter("",

							PluginServices.getText(this,

								"directorio_extensiones")));

					if (jfc.showOpenDialog(

								(Component) PluginServices.getMainFrame()) == JFileChooser.APPROVE_OPTION) {

						getJTextField().setText(jfc.getSelectedFile()

												   .getAbsolutePath());

						changed = true;

					}

				}

			});

		}

		return jButton;

	}

	public boolean isValueChanged() {

		return changed;

	}

	public void setChangesApplied() {

		changed = false;

	}

}  //  @jve:decl-index=0:visual-constraint="10,10"