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annotate gnv-artifacts/src/main/java/de/intevation/gnv/exports/ChartExportHelper.java @ 318:5f2820e821e0

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Implemented a helper class for exporting charts. Adapted code. gnv-artifacts/trunk@376 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 26 Nov 2009 16:10:47 +0000
parents
children 18302372703f
rev   line source
318
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 package de.intevation.gnv.exports;
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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2
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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3 import java.awt.Transparency;
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4 import java.awt.image.BufferedImage;
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5 import java.io.OutputStream;
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6 import java.io.IOException;
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7 import javax.imageio.ImageIO;
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8
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9 import org.apache.log4j.Logger;
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10
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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11 import org.jfree.chart.JFreeChart;
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12
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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13 /**
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14 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
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15 */
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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16 public class ChartExportHelper {
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17
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18 private static final String DEFAULT_PAGE_SIZE = "A4";
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19
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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20 private static Logger log = Logger.getLogger(ChartExportHelper.class);
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21
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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22 public static void exportImage(
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23 OutputStream out,
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24 JFreeChart chart,
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25 String format,
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26 int width,
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27 int height
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28 )
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29 throws IOException
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30 {
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31 log.info("export chart as png");
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32
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33 ImageIO.write(
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34 chart.createBufferedImage(
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35 width, height, Transparency.BITMASK, null
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36 ),
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37 format,
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38 out
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39 );
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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40 }
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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41
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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42 public static void exportSVG() {
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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43 log.info("export chart as svg (not implemented yet)");
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44 }
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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45
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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46 public static void exportPDF() {
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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47 log.info("export chart as pdf (not implemented yet)");
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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48 }
5f2820e821e0 Implemented a helper class for exporting charts. Adapted code.
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49 }
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