EventListenerGeneral.java Source code

Introduction

Here is the source code for EventListenerGeneral.java

Source

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;

public class EventListenerGeneral {

    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new Shell(display);
        Label label = new Label(shell, SWT.SHADOW_IN | SWT.CENTER);

        shell.setLayout(new GridLayout());

        Listener listener = new MouseEnterExitListener();

        label.setText("Point your cursor here ...");
        label.setBounds(30, 30, 200, 30);

        label.addListener(SWT.MouseEnter, listener);
        label.addListener(SWT.MouseExit, listener);

        shell.setSize(260, 120);
        shell.open();

        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                display.sleep();
            }
        }
    }

}

class MouseEnterExitListener implements Listener {
    public void handleEvent(Event e) {
        switch (e.type) {
        case SWT.MouseEnter:
            System.out.println("Cursor enters the label");
            break;
        case SWT.MouseExit:
            System.out.println("Cursor leaves the label");
            break;
        }
    }
}