HelloWorld5.java Source code

Introduction

Here is the source code for HelloWorld5.java

Source

import java.util.ResourceBundle;

import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

/*
 * This example builds on HelloWorld1 and demonstrates how to draw directly
 * on an SWT Control.
 */
public class HelloWorld5 {

    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new HelloWorld5().open(display);
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }

    public Shell open(Display display) {
        final Color red = new Color(display, 0xFF, 0, 0);
        final Shell shell = new Shell(display);
        shell.addPaintListener(new PaintListener() {
            public void paintControl(PaintEvent event) {
                GC gc = event.gc;
                gc.setForeground(red);
                Rectangle rect = shell.getClientArea();
                gc.drawRectangle(rect.x + 10, rect.y + 10, rect.width - 20, rect.height - 20);
                gc.drawString("Hello_world", rect.x + 20, rect.y + 20);
            }
        });
        shell.addDisposeListener(new DisposeListener() {
            public void widgetDisposed(DisposeEvent e) {
                red.dispose();
            }
        });
        shell.open();
        return shell;
    }
}