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/*
* 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.
*/
/* $Id: TilingPatternExample.java 752824 2009-03-12 10:05:32Z jeremias $ */
package java2d.ps;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Polygon;
import java.awt.Rectangle;
import java.awt.TexturePaint;
import java.awt.font.GlyphVector;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.commons.io.IOUtils;
import org.apache.xmlgraphics.image.writer.ImageWriterUtil;
import org.apache.xmlgraphics.java2d.ps.PSDocumentGraphics2D;
/**
* This example demonstrates the usage of PostScript tiling patterns. The class also generated
* a PNG file so the output can be compared.
*/
public class TilingPatternExample {
private BufferedImage tile;
private TexturePaint paint;
/**
* Default constructor.
*/
public TilingPatternExample() {
//Created TexturePaint instance
this.tile = new BufferedImage(40, 20, BufferedImage.TYPE_INT_RGB);
Graphics2D tileg2d = tile.createGraphics();
tileg2d.setBackground(Color.WHITE);
tileg2d.clearRect(0, 0, tile.getWidth(), tile.getHeight());
tileg2d.setColor(Color.BLUE);
tileg2d.fillOval(2, 2, tile.getWidth() - 2, tile.getHeight() - 2);
tileg2d.dispose();
Rectangle2D rect = new Rectangle2D.Double(
2, 2,
tile.getWidth() / 2.0, tile.getHeight() / 2.0);
this.paint = new TexturePaint(tile, rect);
}
/**
* Creates a PostScript file. The contents are painted using a Graphics2D implementation.
* @param outputFile the target file
* @throws IOException In case of an I/O error
*/
public void generatePSusingJava2D(File outputFile) throws IOException {
OutputStream out = new java.io.FileOutputStream(outputFile);
out = new java.io.BufferedOutputStream(out);
try {
//Instantiate the PSDocumentGraphics2D instance
PSDocumentGraphics2D g2d = new PSDocumentGraphics2D(false);
g2d.setGraphicContext(new org.apache.xmlgraphics.java2d.GraphicContext());
//Set up the document size
g2d.setupDocument(out, 400, 200); //400pt x 200pt
paintTileAlone(g2d);
paintShapes(g2d);
paintText(g2d);
g2d.nextPage();
paintText(g2d);
//Cleanup
g2d.finish();
} finally {
IOUtils.closeQuietly(out);
}
}
private void generatePNGusingJava2D(File outputFile) throws IOException {
BufferedImage image = new BufferedImage(400, 200, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2d = image.createGraphics();
paintTileAlone(g2d);
paintShapes(g2d);
paintText(g2d);
g2d.dispose();
ImageWriterUtil.saveAsPNG(image, outputFile);
}
private void paintTileAlone(Graphics2D g2d) {
AffineTransform at = new AffineTransform();
at.translate(5, 5);
g2d.drawRenderedImage(this.tile, at);
}
private void paintShapes(Graphics2D g2d) {
g2d.setPaint(paint);
Rectangle rect = new Rectangle(10, 50, 30, 30);
g2d.fill(rect);
rect = new Rectangle(10, 90, 40, 20);
g2d.fill(rect);
Polygon poly = new Polygon(new int[] {50, 100, 150}, new int[] {100, 20, 100}, 3);
g2d.fill(poly);
}
private void paintText(Graphics2D g2d) {
g2d.setPaint(paint);
Font font = new Font("serif", Font.BOLD, 80);
GlyphVector gv = font.createGlyphVector(g2d.getFontRenderContext(), "Java");
g2d.translate(100, 180);
g2d.fill(gv.getOutline());
}
/**
* Command-line interface
* @param args command-line arguments
*/
public static void main(String[] args) {
try {
File targetDir;
if (args.length >= 1) {
targetDir = new File(args[0]);
} else {
targetDir = new File(".");
}
if (!targetDir.exists()) {
System.err.println("Target Directory does not exist: " + targetDir);
}
File outputFile = new File(targetDir, "tiling-example.ps");
File pngFile = new File(targetDir, "tiling-example.png");
TilingPatternExample app = new TilingPatternExample();
app.generatePSusingJava2D(outputFile);
System.out.println("File written: " + outputFile.getCanonicalPath());
app.generatePNGusingJava2D(pngFile);
System.out.println("File written: " + pngFile.getCanonicalPath());
} catch (Exception e) {
e.printStackTrace();
}
}
}
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