batik-test-old/src/test/java/org/apache/batik/svggen/RHints.java

/*

   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

       http://www.apache.org/licenses/LICENSE-2.0

   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.

 */
package org.apache.batik.svggen;

import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;

/**
 * This test validates the convertion of Java 2D RenderingHints
 * into an SVG attributes.
 *
 * @author <a href="mailto:cjolif@ilog.fr">Christophe Jolif</a>
 * @author <a href="mailto:vhardy@eng.sun.com">Vincent Hardy</a>
 * @version $Id$
 */
public class RHints implements Painter {
    public void paint(Graphics2D g) {
        java.awt.RenderingHints.Key antialiasKey = java.awt.RenderingHints.KEY_ANTIALIASING;
        Object antialiasOn= java.awt.RenderingHints.VALUE_ANTIALIAS_ON;
        Object antialiasOff= java.awt.RenderingHints.VALUE_ANTIALIAS_OFF;
        java.awt.RenderingHints.Key textAntialiasKey = java.awt.RenderingHints.KEY_TEXT_ANTIALIASING;
        Object textAntialiasOn = java.awt.RenderingHints.VALUE_TEXT_ANTIALIAS_ON;
        Object textAntialiasOff = java.awt.RenderingHints.VALUE_TEXT_ANTIALIAS_OFF;
        java.awt.RenderingHints.Key interpolationKey = java.awt.RenderingHints.KEY_INTERPOLATION;
        Object interpolationBicubic = java.awt.RenderingHints.VALUE_INTERPOLATION_BICUBIC;
        Object interpolationNeighbor = java.awt.RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR;

        Font defaultFont = g.getFont();
        java.awt.geom.AffineTransform defaultTransform = g.getTransform();
        Font textFont = new Font("Impact", Font.PLAIN, 25);

        //
        // First, test text antialiasing
        //
        g.setPaint(Color.black);
        g.setRenderingHint(antialiasKey, antialiasOn);
        g.drawString("Text antialiasing", 10, 20);

        g.setRenderingHint(antialiasKey, antialiasOff);
        g.setRenderingHint(textAntialiasKey, textAntialiasOn);
        g.setFont(textFont);
        g.drawString("HELLO antialiased", 30, 60);
        g.setRenderingHint(textAntialiasKey, textAntialiasOff);
        g.drawString("HELLO aliased", 30, 90);

        //
        // Now, test shape antialiasing
        //
        g.translate(0, 100);
        g.setRenderingHint(antialiasKey, antialiasOn);
                                g.setRenderingHint(textAntialiasKey, textAntialiasOn);
        g.setFont(defaultFont);
        g.drawString("Shape antialiasing", 10, 20);

        g.translate(30, 0);
        g.setRenderingHint(antialiasKey, antialiasOff);
        Ellipse2D ellipse = new Ellipse2D.Float(10, 30, 100, 30);
        g.fill(ellipse);
        g.translate(0, 40);
        g.setRenderingHint(antialiasKey, antialiasOn);
        g.fill(ellipse);

        g.setTransform(defaultTransform);
        g.translate(0, 200);

        //
        // Now, test interpolation hint
        //
        BufferedImage image = new BufferedImage(2, 2, BufferedImage.TYPE_INT_RGB);
        Graphics2D ig = image.createGraphics();
        ig.setPaint(Color.red);
        ig.fillRect(0, 0, 2, 2);
        ig.setPaint(Color.yellow);
        ig.fillRect(0, 0, 1, 1);
        ig.fillRect(1, 1, 2, 2);
        ig.dispose();

        g.setRenderingHint(interpolationKey, interpolationNeighbor);
        g.drawString("Interpolation Nearest Neighbor / Bicubic", 10, 30);
        g.drawImage(image, 10, 50, 40, 40, null);

        g.setRenderingHint(interpolationKey, interpolationBicubic);
        g.drawImage(image, 60, 50, 40, 40, null);

    }
}