Example usage for javax.swing JTextArea addMouseWheelListener

Introduction

In this page you can find the example usage for javax.swing JTextArea addMouseWheelListener.

Prototype

public synchronized void addMouseWheelListener(MouseWheelListener l) 

Source Link

Document

Adds the specified mouse wheel listener to receive mouse wheel events from this component.

Usage

From source file:Main.java

public Main() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setSize(200, 200);/*w  w w . j av a  2 s .  co m*/
    JTextArea textArea = new JTextArea();
    textArea.addMouseWheelListener(new MouseWheelListener() {
        public void mouseWheelMoved(MouseWheelEvent e) {
            if (e.getWheelRotation() < 0) {
                System.out.println("Up... " + e.getWheelRotation());
            } else {
                System.out.println("Down... " + e.getWheelRotation());
            }
            System.out.println("ScrollAmount: " + e.getScrollAmount());

            if (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
                System.out.println("MouseWheelEvent.WHEEL_UNIT_SCROLL");
            }

            if (e.getScrollType() == MouseWheelEvent.WHEEL_BLOCK_SCROLL) {
                System.out.println("MouseWheelEvent.WHEEL_BLOCK_SCROLL");
            }
        }
    });

    getContentPane().add(textArea);
}

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