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/**
* @version 1.20 1999-09-24
* @author Cay Horstmann
*/
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.Serializable;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JFileChooser;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class FileNameBean extends JPanel implements Serializable {
public FileNameBean() {
dialogButton = new JButton("...");
nameField = new JTextField("");
chooser = new JFileChooser();
chooser.setCurrentDirectory(new File("."));
chooser.setFileFilter(new javax.swing.filechooser.FileFilter() {
public boolean accept(File f) {
String name = f.getName().toLowerCase();
return name.endsWith("." + defaultExtension) || f.isDirectory();
}
public String getDescription() {
return defaultExtension + " files";
}
});
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.weightx = 100;
gbc.weighty = 100;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.BOTH;
add(nameField, gbc, 0, 0, 1, 1);
dialogButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
showFileDialog();
}
});
nameField.setEditable(false);
gbc.weightx = 0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
add(dialogButton, gbc, 1, 0, 1, 1);
}
public void add(Component c, GridBagConstraints gbc, int x, int y, int w,
int h) {
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = w;
gbc.gridheight = h;
add(c, gbc);
}
public void showFileDialog() {
int r = chooser.showOpenDialog(null);
if (r == JFileChooser.APPROVE_OPTION) {
String name = chooser.getSelectedFile().getAbsolutePath();
setFileName(name);
}
}
public void setFileName(String newValue) {
String oldValue = nameField.getText();
firePropertyChange("fileName", oldValue, newValue);
nameField.setText(newValue);
}
public String getFileName() {
return nameField.getText();
}
public Dimension getMinimumSize() {
return new Dimension(XMINSIZE, YMINSIZE);
}
public String getDefaultExtension() {
return defaultExtension;
}
public void setDefaultExtension(String s) {
defaultExtension = s;
}
private static final int XMINSIZE = 200;
private static final int YMINSIZE = 20;
private JButton dialogButton;
private JTextField nameField;
private JFileChooser chooser;
private String defaultExtension = "gif";
public static void main() {
JFrame f = new JFrame();
f.setContentPane(new FileNameBean());
}
}
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