splitpaneevents.java

一个用java开发界面的程序集(jfc核心编程)

package JFCBook.Chapter9.jdk13;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.beans.*;

public class SplitPaneEvents {
	public static void main(String[] args) {
		JFrame f = new JFrame("Split Pane Events");
		JPanel leftPanel = new JPanel();
		JPanel rightPanel = new JPanel();
		final JSplitPane split = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, false, 
											leftPanel, rightPanel);
		split.setOneTouchExpandable(true);

		f.getContentPane().add(split);
		f.setSize(300, 200);
		f.addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent evt) {
				System.exit(0);
			}
		});

		split.addPropertyChangeListener(
			new PropertyChangeListener() {
				public void propertyChange(PropertyChangeEvent evt) {
					if (evt.getPropertyName().equals(
						JSplitPane.DIVIDER_LOCATION_PROPERTY)) {
							System.out.println("Divider moved to " +
								((Integer)evt.getNewValue()).intValue());
					}
			}
		});

		f.setVisible(true);
	}
}