Mercurial > dive4elements > gnv-client
diff gnv-artifacts/src/main/java/de/intevation/gnv/chart/AbstractChart.java @ 297:3f43392df3f6
Interface and abstract classes for chart creation implemented.
gnv-artifacts/trunk@351 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Thu, 19 Nov 2009 15:24:45 +0000 |
parents | |
children | 3ea030aafe65 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/chart/AbstractChart.java Thu Nov 19 15:24:45 2009 +0000 @@ -0,0 +1,52 @@ +package de.intevation.gnv.chart; + +import java.util.Collection; +import java.util.Iterator; +import java.util.Date; +import java.util.Locale; +import java.awt.Transparency; +import java.awt.image.BufferedImage; + +import org.apache.log4j.Logger; + +import org.jfree.chart.JFreeChart; +import org.jfree.chart.ChartTheme; +import org.jfree.data.time.TimeSeriesCollection; + +/** + * @author Ingo Weinzierl <ingo.weinzierl@intevation.de> + */ +public abstract class AbstractChart +implements Chart +{ + private static Logger log = Logger.getLogger(AbstractChart.class); + + protected JFreeChart chart; + + protected Locale locale; + + protected ChartLabels labels; + protected ChartTheme theme; + protected Collection parameters; + protected Collection measurements; + protected Collection resultSet; + protected Collection dates; + + public abstract JFreeChart generateChart(); + + public BufferedImage exportPNG(int width, int height) { + log.info("export chart as png"); + + return chart.createBufferedImage( + width, height, Transparency.BITMASK, null); + } + + public void exportSVG() { + log.info("export chart as svg (not implemented yet)"); + } + + public void exportPDF() { + log.info("export chart as pdf (not implemented yet)"); + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=latin1 :