Java Tutorial/SWT 2D Graphics/Oval

Drawing Ovals

   <source lang="java">

import org.eclipse.swt.SWT; import org.eclipse.swt.events.PaintEvent; import org.eclipse.swt.events.PaintListener; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.widgets.Canvas; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class DrawOval {

 public static void main(String[] args) {
   Display display = new Display();
   Shell shell = new Shell(display);
   shell.setText("Canvas Example");
   shell.setLayout(new FillLayout());
   Canvas canvas = new Canvas(shell, SWT.NONE);
   canvas.addPaintListener(new PaintListener() {
     public void paintControl(PaintEvent e) {
       e.gc.drawOval(200, 100, 500, 400);
     }
   });
   
   canvas.redraw();
   
   
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch()) {
       display.sleep();
     }
   }
   display.dispose();
 }

}</source>

Draw Oval

   <source lang="java">

import org.eclipse.swt.events.PaintEvent; import org.eclipse.swt.events.PaintListener; import org.eclipse.swt.graphics.Rectangle; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class DrawOval {

 public static void main(String[] args) {
   final Display display = new Display();
   final Shell shell = new Shell(display);
   shell.addPaintListener(new PaintListener() {
     public void paintControl(PaintEvent event) {
       Rectangle rect = shell.getClientArea();
       event.gc.drawOval(0, 0, rect.width - 1, rect.height - 1);
     }
   });
   shell.setBounds(10, 10, 200, 200);
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch())
       display.sleep();
   }
   display.dispose();
 }

}</source>