Package org.encog.workbench.util.graph

Source Code of org.encog.workbench.util.graph.DocumentPDF

/*
* Encog(tm) Workbench v3.0
* http://www.heatonresearch.com/encog/
* http://code.google.com/p/encog-java/
* Copyright 2008-2011 Heaton Research, Inc.
*
* Licensed 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.
*  
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.workbench.util.graph;

import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import org.encog.workbench.WorkBenchError;
import org.jfree.chart.JFreeChart;

import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.DefaultFontMapper;
import com.lowagie.text.pdf.FontMapper;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfTemplate;
import com.lowagie.text.pdf.PdfWriter;

public class DocumentPDF {
    public static void writeChartAsPDF(OutputStream out,
        JFreeChart chart,
        int width,
        int height,
        FontMapper mapper) throws IOException {
        Rectangle pagesize = new Rectangle(width, height);
        Document document = new Document(pagesize, 50, 50, 50, 50);
        try {
        PdfWriter writer = PdfWriter.getInstance(document, out);
        document.addAuthor("JFreeChart");
        document.addSubject("Demonstration");
        document.open();
        PdfContentByte cb = writer.getDirectContent();
        PdfTemplate tp = cb.createTemplate(width, height);
        Graphics2D g2 = tp.createGraphics(width, height, mapper);
        Rectangle2D r2D = new Rectangle2D.Double(0, 0, width, height);
        chart.draw(g2, r2D);
        g2.dispose();
        cb.addTemplate(tp, 0, 0);
        }
        catch (DocumentException de) {
        System.err.println(de.getMessage());
        }
    }

    public static void savePDF(File filename, JFreeChart chart, int width, int height) {
      try {
      // step 1
        Document document = new Document(new Rectangle(width, height));
        // step 2
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(filename));
        // step 3
        document.open();
        // step 4
        PdfContentByte canvas = writer.getDirectContent();
        Graphics2D g2 = canvas.createGraphics(width, height);
        Rectangle2D area = new Rectangle2D.Double(0, 0, width, height);
        chart.draw(g2, area);
        g2.dispose();
        // step 5
        document.close();
      } catch(DocumentException ex) {
        throw new WorkBenchError(ex);
      }
       catch(IOException ex) {
         throw new WorkBenchError(ex);
       }

    }

}
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