PropertySplitPane.java Source code

Introduction

Here is the source code for PropertySplitPane.java

Source

import java.awt.BorderLayout;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JSplitPane;

public class PropertySplitPane {
    public static void main(String args[]) {
        JFrame frame = new JFrame("Property Split");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
        splitPane.setContinuousLayout(true);
        splitPane.setOneTouchExpandable(true);

        JComponent topComponent = new JButton("A");
        splitPane.setTopComponent(topComponent);

        JComponent bottomComponent = new JButton("B");
        splitPane.setBottomComponent(bottomComponent);

        PropertyChangeListener propertyChangeListener = new PropertyChangeListener() {
            public void propertyChange(PropertyChangeEvent changeEvent) {
                JSplitPane sourceSplitPane = (JSplitPane) changeEvent.getSource();
                String propertyName = changeEvent.getPropertyName();
                if (propertyName.equals(JSplitPane.LAST_DIVIDER_LOCATION_PROPERTY)) {
                    int current = sourceSplitPane.getDividerLocation();
                    System.out.println("Current: " + current);
                    Integer last = (Integer) changeEvent.getNewValue();
                    System.out.println("Last: " + last);
                    Integer priorLast = (Integer) changeEvent.getOldValue();
                    System.out.println("Prior last: " + priorLast);
                }
            }
        };

        splitPane.addPropertyChangeListener(propertyChangeListener);

        frame.add(splitPane, BorderLayout.CENTER);
        frame.setSize(300, 150);
        frame.setVisible(true);
    }
}