Mercurial > dive4elements > gnv-client
diff gnv-artifacts/src/main/java/de/intevation/gnv/exports/ChartExportHelper.java @ 318:5f2820e821e0
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> |
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date | Thu, 26 Nov 2009 16:10:47 +0000 |
parents | |
children | 18302372703f |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/exports/ChartExportHelper.java Thu Nov 26 16:10:47 2009 +0000 @@ -0,0 +1,49 @@ +package de.intevation.gnv.exports; + +import java.awt.Transparency; +import java.awt.image.BufferedImage; +import java.io.OutputStream; +import java.io.IOException; +import javax.imageio.ImageIO; + +import org.apache.log4j.Logger; + +import org.jfree.chart.JFreeChart; + +/** + * @author Ingo Weinzierl <ingo.weinzierl@intevation.de> + */ +public class ChartExportHelper { + + private static final String DEFAULT_PAGE_SIZE = "A4"; + + private static Logger log = Logger.getLogger(ChartExportHelper.class); + + public static void exportImage( + OutputStream out, + JFreeChart chart, + String format, + int width, + int height + ) + throws IOException + { + log.info("export chart as png"); + + ImageIO.write( + chart.createBufferedImage( + width, height, Transparency.BITMASK, null + ), + format, + out + ); + } + + public static void exportSVG() { + log.info("export chart as svg (not implemented yet)"); + } + + public static void exportPDF() { + log.info("export chart as pdf (not implemented yet)"); + } +}