Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/AbstractChart.java @ 300:6a3a02e004d9

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Refactored process of chart generation. Charts will be generated via Chart-Interface from rev351 and no more via factory classes. gnv-artifacts/trunk@354 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 20 Nov 2009 13:51:14 +0000
parents 3f43392df3f6
children 3ea030aafe65
rev   line source
297
3f43392df3f6 Interface and abstract classes for chart creation implemented.
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1 package de.intevation.gnv.chart;
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2
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3 import java.util.Collection;
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4 import java.util.Iterator;
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5 import java.util.Date;
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6 import java.util.Locale;
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7 import java.awt.Transparency;
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8 import java.awt.image.BufferedImage;
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9
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10 import org.apache.log4j.Logger;
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11
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12 import org.jfree.chart.JFreeChart;
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13 import org.jfree.chart.ChartTheme;
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14 import org.jfree.data.time.TimeSeriesCollection;
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15
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16 /**
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17 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
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18 */
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19 public abstract class AbstractChart
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20 implements Chart
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21 {
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22 private static Logger log = Logger.getLogger(AbstractChart.class);
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23
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24 protected JFreeChart chart;
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25
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26 protected Locale locale;
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27
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28 protected ChartLabels labels;
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29 protected ChartTheme theme;
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30 protected Collection parameters;
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31 protected Collection measurements;
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32 protected Collection resultSet;
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33 protected Collection dates;
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34
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35 public abstract JFreeChart generateChart();
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36
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37 public BufferedImage exportPNG(int width, int height) {
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38 log.info("export chart as png");
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39
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40 return chart.createBufferedImage(
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41 width, height, Transparency.BITMASK, null);
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42 }
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43
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44 public void exportSVG() {
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45 log.info("export chart as svg (not implemented yet)");
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46 }
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47
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48 public void exportPDF() {
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49 log.info("export chart as pdf (not implemented yet)");
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50 }
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51 }
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52 // vim:set ts=4 sw=4 si et sta sts=4 fenc=latin1 :
http://dive4elements.wald.intevation.org