/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library 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
* Lesser General Public License for more details.
*/
package org.geotools.swing.wizard;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFileChooser;
import javax.swing.JPanel;
import javax.swing.JTextField;
import net.miginfocom.swing.MigLayout;
import org.geotools.data.DataUtilities;
import org.geotools.data.FileDataStoreFactorySpi;
import org.geotools.data.Parameter;
import org.geotools.swing.data.JFileDataStoreChooser;
import org.geotools.swing.wizard.JWizard.Controller;
/**
* Widget for File; provides a "Browse" button to open a file dialog.
*
* @author Jody Garnett
*
*
*
*
* @source $URL$
*/
public class JFileField extends ParamField {
private JTextField field;
private JButton browse;
public JFileField(Parameter<?> parameter) {
super(parameter);
}
public JComponent doLayout() {
final JPanel panel = new JPanel(new MigLayout("insets 0"));
panel.add(field = new JTextField(32), "width 200::700, growx");
// field.setActionCommand(FINISH); // pressing return will Finish wizard
panel.add(browse = new JButton("Browse"), "wrap");
browse.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
browse();
}
});
return panel;
}
@SuppressWarnings("unchecked")
protected void browse() {
JFileChooser dialog;
Object format = this.parameter.metadata == null ? null : this.parameter.metadata.get( Parameter.EXT );
if (format instanceof FileDataStoreFactorySpi) {
dialog = new JFileDataStoreChooser((FileDataStoreFactorySpi) format);
} else if (format instanceof String) {
dialog = new JFileDataStoreChooser((String) format);
} else if (format instanceof String[]) {
dialog = new JFileDataStoreChooser((String[]) format);
}
else if (format instanceof List) {
dialog = new JFileDataStoreChooser((List<String>) format);
}
else {
dialog = new JFileChooser();
}
dialog.setSelectedFile( getValue() );
int returnVal = dialog.showOpenDialog( browse );
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = dialog.getSelectedFile();
setValue( file );
}
}
public void addListener(Controller controller) {
//field.addKeyListener(controller);
field.addActionListener(controller);
field.getDocument().addDocumentListener(controller);
}
public void removeListener(Controller controller) {
//field.removeKeyListener(controller);
field.removeActionListener(controller);
field.getDocument().removeDocumentListener(controller);
}
public File getValue(){
String txt = field.getText();
if (txt == null || txt.equals("")) {
return null;
}
try {
File file = new File(txt);
return file;
} catch (Exception e) {
}
try {
URL url = new URL(txt);
return DataUtilities.urlToFile( url );
} catch (MalformedURLException e) {
}
return null; // not a file
}
public void setValue(Object value) {
if( value instanceof File ){
File file = (File) value;
field.setText( file.toString() );
}
else if ( value instanceof URL ){
URL url = (URL) value;
field.setText( url.toExternalForm() );
}
else if ( value instanceof String){
field.setText( (String) value );
}
}
public boolean validate() {
String txt = field.getText();
if (txt == null || txt.equals("")) {
return !parameter.required;
}
File file = getValue();
if( file != null ){
return file.exists();
}
return false;
}
}