# HG changeset patch
# User František Kučera <franta-hg@frantovo.cz>
# Date 1235866104 -3600
# Node ID be6383d38a3a7266fbb874358be260c6ec21f8ea
# Parent  9bb0a26fd6161b6d0fa5ddac51a807738c9615e2
Zobrazujeme graf – zatím s pokusnými daty. Pozor na chybu: java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment
V konsoli se vypíše: X11 connection rejected because of wrong authentication.
Je potřeba přidat tuto volbu: -Djava.awt.headless=true
(ve webovém rozhraní GlassFishe a restartovat ho)

diff -r 9bb0a26fd616 -r be6383d38a3a java/HrisniciSpameri/src/java/cz/frantovo/hrisniciSpameri/grafy/CasovyGrafUtoku.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/HrisniciSpameri/src/java/cz/frantovo/hrisniciSpameri/grafy/CasovyGrafUtoku.java	Sun Mar 01 01:08:24 2009 +0100
@@ -0,0 +1,59 @@
+package cz.frantovo.hrisniciSpameri.grafy;
+
+import de.laures.cewolf.DatasetProduceException;
+import de.laures.cewolf.DatasetProducer;
+import de.laures.cewolf.links.CategoryItemLinkGenerator;
+import de.laures.cewolf.tooltips.CategoryToolTipGenerator;
+import java.io.Serializable;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.Map;
+import org.jfree.data.category.CategoryDataset;
+import org.jfree.data.time.Day;
+import org.jfree.data.time.TimeSeries;
+import org.jfree.data.time.TimeSeriesCollection;
+import org.jfree.data.xy.XYDataset;
+
+/**
+ *
+ * @author fiki
+ */
+public class CasovyGrafUtoku implements DatasetProducer, CategoryToolTipGenerator, CategoryItemLinkGenerator, Serializable {
+
+    private static final long serialVersionUID = -9133218147909088777L;
+
+    public XYDataset produceDataset(Map params) throws DatasetProduceException {
+
+        System.setProperty("java.awt.headless", "true");
+
+        TimeSeries timeseries = new TimeSeries("fond", org.jfree.data.time.Day.class);
+        TimeSeriesCollection dataset = new TimeSeriesCollection();
+
+
+        Calendar datum = Calendar.getInstance();
+        for (int i = 0; i < 11; i++) {
+            datum.add(Calendar.DAY_OF_YEAR, -1);
+            double nahodneCislo = 100 - 10 * i - 20 * Math.random();
+            timeseries.add(new Day(datum.getTime()), nahodneCislo);
+        }
+
+        dataset.addSeries(timeseries);
+        return dataset;
+    }
+
+    public boolean hasExpired(Map params, Date since) {
+        return (System.currentTimeMillis() - since.getTime()) > 5000;
+    }
+
+    public String getProducerId() {
+        return this.getClass().getSimpleName();
+    }
+
+    public String generateToolTip(CategoryDataset data, int series, int item) {
+        return "";
+    }
+
+    public String generateLink(Object dataset, int series, Object category) {
+        return "";
+    }
+}
diff -r 9bb0a26fd616 -r be6383d38a3a java/HrisniciSpameri/web/graf.jspx
--- a/java/HrisniciSpameri/web/graf.jspx	Sun Mar 01 00:10:46 2009 +0100
+++ b/java/HrisniciSpameri/web/graf.jspx	Sun Mar 01 01:08:24 2009 +0100
@@ -1,14 +1,33 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- 
-    Document   : souhrn
-    Created on : 11.2.2009, 18:54:42
-    Author     : fiki
--->
 <jsp:root xmlns:jsp="http://java.sun.com/JSP/Page"
           xmlns:c="http://java.sun.com/jsp/jstl/core"
           xmlns:f="http://java.sun.com/jsp/jstl/functions"
+          xmlns:cewolf="http://cewolf.sourceforge.net/taglib/cewolf.tld"
           version="2.0">
 
     <h2>Graf</h2>
 
+    <jsp:useBean id="casovyGrafUtoku" class="cz.frantovo.hrisniciSpameri.grafy.CasovyGrafUtoku" />
+
+
+    <cewolf:chart id="graf" title="Můj graf" type="timeseries" xaxislabel="Datum" yaxislabel="Počet" showlegend="false">
+        <cewolf:data>
+            <cewolf:producer id="casovyGrafUtoku" usecache="false">
+                <!-- TODO: rozchodit mezipaměť - cache -->
+                <cewolf:param name="isin" value="${isin}" />
+                <cewolf:param name="currency" value="${currency}" />
+                <cewolf:param name="monthFrom" value="${monthFrom}" />
+                <cewolf:param name="yearFrom" value="${yearFrom}" />
+                <cewolf:param name="monthTo" value="${monthTo}" />
+                <cewolf:param name="yearTo" value="${yearTo}" />
+            </cewolf:producer>
+        </cewolf:data>
+        <cewolf:gradientpaint>
+            <cewolf:point x="0" y="0" color="#F5F5F5" />
+            <cewolf:point x="0" y="300" color="#e5e5e5" />
+        </cewolf:gradientpaint>
+    </cewolf:chart>
+
+    <cewolf:img chartid="graf" renderer="/cewolf" width="680" height="320" />
+
 </jsp:root>