Application: gvSIG desktop » Library: org.gvsig.tools

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 * 

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

 * MA  02110-1301, USA.

 * 

 */

/*

 * AUTHORS (In addition to CIT):

 * 2010 Institute of New Imaging Technologies (INIT): 

 *   http://www.init.uji.es

 * Geographic Information research group: 

 *   http://www.geoinfo.uji.es

 * Universitat Jaume I, Spain

 */

/**

 * 

 */

package org.gvsig.tools.swing.serv.field.component;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.FocusEvent;

import java.awt.event.FocusListener;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.io.File;

import javax.swing.JButton;

import javax.swing.JComponent;

import javax.swing.JPanel;

import javax.swing.JTextField;

import org.gvsig.tools.service.ServiceException;

import org.gvsig.tools.swing.api.dynobject.dynfield.JDynFieldComponent;

import org.gvsig.tools.swing.api.dynobject.dynfield.ValueField;

import org.gvsig.tools.swing.components.file.JFileChooser;

import org.gvsig.tools.swing.spi.AbstractJDynFieldComponent;

/**

 * @author <a href="mailto:reinhold@uji.es">cmartin</a>

 * 

 */

public class JFileDynfieldComponent extends AbstractJDynFieldComponent

    implements JDynFieldComponent, FocusListener, KeyListener {

    private JTextField tfFile;

    private JPanel panel;

    private File file;

    private String previousText;

    private JFileChooser fc;

    private JButton jBtnChangeFile;

        /**

         * @param parent

         * @param writable

         * @param dynField

         * @throws ServiceException

         */

        public JFileDynfieldComponent(ValueField parent)

        throws ServiceException {

                super(parent);

    }

    @Override

    protected void afterUI() {

        // TODO Auto-generated method stub

    }

    public void focusGained(FocusEvent e) {

        previousText = tfFile.getText();

    }

    public void focusLost(FocusEvent e) {

        // if (!this.isValid())

        // tfFile.setText(previousText);

        previousText = tfFile.getText();

        this.file = new File(previousText);

        this.fireValueChangedEvent();

    }

    public JComponent asJComponent() {

        return panel;

    }

    public Object getValue() {

        return file;

    }

    @Override

    protected void initData() {

        previousText = "";

    }

    @Override

    protected void initUI() {

        tfFile = new JTextField();

        tfFile.addKeyListener(this);

        panel = this.createBoxLayout(tfFile,getJBtnChangeFile() , 1, 1, null);

        initBtnChangeFile();

    }

    /**

     * This method initializes jButton

     * 

     * @return javax.swing.JButton

     */

    private JButton getJBtnChangeFile() {

        if (jBtnChangeFile == null) {

            jBtnChangeFile = new JButton();

            jBtnChangeFile.setText("..."); //$NON-NLS-1$

            jBtnChangeFile.setPreferredSize(new java.awt.Dimension(26, 26));

        }

        return jBtnChangeFile;

    }

    private void initBtnChangeFile() {

        getJBtnChangeFile().addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {

                showResultProviderDialog();

            }

        });

    }

    @Override

    public boolean isMandatory() {

        return this.getDynField().isMandatory();

    }

    private void refresh() {

        if (file != null)

            tfFile.setText(file.getAbsolutePath());

        else

            tfFile.setText("");

    }

    public void requestFocus() {

        tfFile.requestFocus();

    }

    public void setEnabled(boolean isEnabled) {

        tfFile.setEnabled(isEnabled);

        this.getJBtnChangeFile().setEnabled(isEnabled);

    }

    @Override

    protected void setJDynFieldComponentListeners() {

        tfFile.addFocusListener(this);

    }

    @Override

    protected void setReadOnly() {

        tfFile.setEditable(false);

    }

    protected void setNullValue() {

        file = null;

        this.refresh();

    }

    protected void setNonNullValue(Object value) {

        file = (File) value;

        this.refresh();

    }

    public void showResultProviderDialog() {

        fc =  new JFileChooser(this);

        fc.alignToField(this);

        fc.showDialog();

    }

    public void keyPressed(KeyEvent e) {

        // TODO Auto-generated method stub

    }

    public void keyReleased(KeyEvent e) {

        // TODO Auto-generated method stub

    }

    public void keyTyped(KeyEvent e) {

       isValid();

       this.fireValueChangedEvent();

    }

    /**

     * @param path

     */

    private boolean checkPath(String path) {

        if ((path==null)||(path.equals(""))){

            if (this.getDynField().isMandatory())

                return false;

            return true;

        }

        java.io.File f = new File(path);

        this.file = f;        

        return true;

    }

    @Override

    public boolean isValid() {

        String path = this.tfFile.getText();

        return checkPath(path);

    }

}