Java tutorial
/* * 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: ExampleJava2D2PDF.java 1296385 2012-03-02 19:02:16Z gadams $ */ package embedding; import java.awt.Color; import java.awt.Dimension; import java.awt.Font; import java.awt.Graphics2D; import java.io.File; import java.io.IOException; import java.io.OutputStream; import java.io.StringReader; import javax.swing.JEditorPane; import org.apache.avalon.framework.configuration.Configuration; import org.apache.avalon.framework.configuration.ConfigurationException; import org.apache.avalon.framework.configuration.DefaultConfiguration; import org.apache.commons.io.IOUtils; import org.apache.xmlgraphics.util.UnitConv; import org.apache.fop.svg.PDFDocumentGraphics2D; import org.apache.fop.svg.PDFDocumentGraphics2DConfigurator; /** * This example class demonstrates the use of {@link PDFDocumentGraphics2D} that can be * used to create a PDF file from Java2D graphics (using the {@link Graphics2D} API). */ public class ExampleJava2D2PDF { private Configuration createAutoFontsConfiguration() { //Create a default configuration using auto-detection of fonts. //This can be a bit slow but covers most use cases. DefaultConfiguration c = new DefaultConfiguration("cfg"); DefaultConfiguration fonts = new DefaultConfiguration("fonts"); c.addChild(fonts); DefaultConfiguration autodetect = new DefaultConfiguration("auto-detect"); fonts.addChild(autodetect); return c; /* You can also load the configuration from a file: DefaultConfigurationBuilder cfgBuilder = new DefaultConfigurationBuilder(); return cfgBuilder.buildFromFile(configFile); */ } private void configure(PDFDocumentGraphics2D g2d, Configuration cfg) throws ConfigurationException { PDFDocumentGraphics2DConfigurator configurator = new PDFDocumentGraphics2DConfigurator(); boolean useComplexScriptFeatures = false; configurator.configure(g2d, cfg, useComplexScriptFeatures); } /** * Creates a PDF file. The contents are painted using a Graphics2D implementation that * generates an PDF file. * @param outputFile the target file * @throws IOException In case of an I/O error * @throws ConfigurationException if an error occurs configuring the PDF output */ public void generatePDF(File outputFile) throws IOException, ConfigurationException { OutputStream out = new java.io.FileOutputStream(outputFile); out = new java.io.BufferedOutputStream(out); try { //Instantiate the PDFDocumentGraphics2D instance PDFDocumentGraphics2D g2d = new PDFDocumentGraphics2D(false); g2d.setGraphicContext(new org.apache.xmlgraphics.java2d.GraphicContext()); //Configure the G2D with the necessary fonts configure(g2d, createAutoFontsConfiguration()); //Set up the document size Dimension pageSize = new Dimension((int) Math.ceil(UnitConv.mm2pt(210)), (int) Math.ceil(UnitConv.mm2pt(297))); //page size A4 (in pt) g2d.setupDocument(out, pageSize.width, pageSize.height); g2d.translate(144, 72); //Establish some page borders //A few rectangles rotated and with different color Graphics2D copy = (Graphics2D) g2d.create(); int c = 12; for (int i = 0; i < c; i++) { float f = ((i + 1) / (float) c); Color col = new Color(0.0f, 1 - f, 0.0f); copy.setColor(col); copy.fillRect(70, 90, 50, 50); copy.rotate(-2 * Math.PI / c, 70, 90); } copy.dispose(); //Some text g2d.rotate(-0.25); g2d.setColor(Color.RED); g2d.setFont(new Font("sans-serif", Font.PLAIN, 36)); g2d.drawString("Hello world!", 140, 140); g2d.setColor(Color.RED.darker()); g2d.setFont(new Font("serif", Font.PLAIN, 36)); g2d.drawString("Hello world!", 140, 180); pageSize = new Dimension(pageSize.height, pageSize.width); g2d.nextPage(pageSize.width, pageSize.height); //Demonstrate painting rich text String someHTML = "<html><body style=\"font-family:Verdana\">" + "<p>Welcome to <b>page 2!</b></p>" + "<h2>PDFDocumentGraphics2D Demonstration</h2>" + "<p>We can <i>easily</i> paint some HTML here!</p>" + "<p style=\"color:green;\">" + "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin accumsan" + " condimentum ullamcorper. Sed varius quam id arcu fermentum luctus. Praesent" + " nisi ligula, cursus sed vestibulum vel, sodales sed lectus.</p>" + "</body></html>"; JEditorPane htmlComp = new JEditorPane(); htmlComp.setContentType("text/html"); htmlComp.read(new StringReader(someHTML), null); htmlComp.setSize(new Dimension(pageSize.width - 72, pageSize.height - 72)); //htmlComp.setBackground(Color.ORANGE); htmlComp.validate(); htmlComp.printAll(g2d); //Cleanup g2d.finish(); } finally { IOUtils.closeQuietly(out); } } /** * Main method. * @param args command-line arguments */ public static void main(String[] args) { try { System.out.println("FOP " + ExampleJava2D2PDF.class.getSimpleName() + "\n"); System.out.println("Preparing..."); //Setup directories File baseDir = new File("."); File outDir = new File(baseDir, "out"); if (!outDir.isDirectory()) { if (!outDir.mkdirs()) { throw new IOException("Could not create output directory: " + outDir); } } //Setup output file File pdffile = new File(outDir, "ResultJava2D2PDF.pdf"); System.out.println("Output: PDF (" + pdffile + ")"); System.out.println(); System.out.println("Generating..."); ExampleJava2D2PDF app = new ExampleJava2D2PDF(); app.generatePDF(pdffile); System.out.println("Success!"); } catch (Throwable t) { t.printStackTrace(System.err); System.exit(-1); } } }