| career | drupal | java | mac | mysql | perl | scala | uml | unix  

Ant example source code file (

This example Ant source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Ant tags/keywords

awt, basicshape, basicstroke, bufferedimage, drawoperation, drawoperation, ellipse, geometry, graphics2d, graphics2d, image, imageoperation, planarimage, planarimage, transformoperation, transformoperation

The source code

 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.

import java.awt.BasicStroke;
import java.awt.Graphics2D;
import java.awt.geom.Ellipse2D;
import java.awt.image.BufferedImage;

 * Draw an ellipse.
 * @see
public class Ellipse extends BasicShape implements DrawOperation {
    // CheckStyle:VisibilityModifier OFF - bc
    protected int width = 0;
    protected int height = 0;
    // CheckStyle:VisibilityModifier ON

     * Set the width.
     * @param width the width of the elipse.
    public void setWidth(int width) {
        this.width = width;

     * Set the height.
     * @param height the height of the elipse.
    public void setHeight(int height) {
        this.height = height;

    /** {@inheritDoc}. */
    public PlanarImage executeDrawOperation() {
        BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_4BYTE_ABGR_PRE);

        Graphics2D graphics = (Graphics2D) bi.getGraphics();

        if (!stroke.equals("transparent")) {
            BasicStroke bStroke = new BasicStroke(stroke_width);
            graphics.draw(new Ellipse2D.Double(0, 0, width, height));

        if (!fill.equals("transparent")) {
            graphics.fill(new Ellipse2D.Double(0, 0, width, height));

        for (int i = 0; i < instructions.size(); i++) {
            ImageOperation instr = ((ImageOperation) instructions.elementAt(i));
            if (instr instanceof DrawOperation) {
                PlanarImage img = ((DrawOperation) instr).executeDrawOperation();
                graphics.drawImage(img.getAsBufferedImage(), null, 0, 0);
            } else if (instr instanceof TransformOperation) {
                graphics = (Graphics2D) bi.getGraphics();
                PlanarImage image = ((TransformOperation) instr)
                bi = image.getAsBufferedImage();
        return PlanarImage.wrapRenderedImage(bi);

Other Ant examples (source code examples)

Here is a short list of links related to this Ant source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller


new blog posts


Copyright 1998-2021 Alvin Alexander,
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.