Snippet168.java Source code

Introduction

Here is the source code for Snippet168.java

Source

/*
 * Draw lines and polygons with different cap and join styles
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;

public class Snippet168 {

    public static void main(String[] args) {
        final Display display = new Display();
        Shell shell = new Shell(display);
        shell.addListener(SWT.Paint, new Listener() {
            public void handleEvent(Event event) {
                int x = 20, y = 20, w = 120, h = 60;
                GC gc = event.gc;
                gc.setForeground(display.getSystemColor(SWT.COLOR_BLUE));
                gc.setLineWidth(10);
                int[] caps = { SWT.CAP_FLAT, SWT.CAP_ROUND, SWT.CAP_SQUARE };
                for (int i = 0; i < caps.length; i++) {
                    gc.setLineCap(caps[i]);
                    gc.drawLine(x, y, x + w, y);
                    y += 20;
                }
                int[] joins = { SWT.JOIN_BEVEL, SWT.JOIN_MITER, SWT.JOIN_ROUND };
                for (int i = 0; i < joins.length; i++) {
                    gc.setLineJoin(joins[i]);
                    gc.drawPolygon(new int[] { x, y, x + w / 2, y + h, x + w, y });
                    y += h + 20;
                }
            }
        });
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
    }
}