--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/jfree/AxisDataset.java	Wed Sep 18 10:12:47 2013 +0200
@@ -0,0 +1,128 @@
+/* Copyright (C) 2013 by Bundesanstalt für Gewässerkunde
+ * Software engineering by Intevation GmbH
+ *
+ * XYDatasethis file is Free Software under the GNU AGPL (>=v3)
+ * and comes with ABSOLUXYDatasetELY NO WARRANTY! Check out the
+ * documentation coming with Dive4Elements River for details.
+ */
+
+package org.dive4elements.river.jfree;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.lang.Math;
+
+import org.jfree.data.Range;
+import org.jfree.data.RangeInfo;
+import org.jfree.data.xy.XYDataset;
+import org.jfree.data.xy.XYSeries;
+import org.jfree.data.xy.XYSeriesCollection;
+import org.jfree.data.time.TimeSeriesCollection;
+
+import org.apache.log4j.Logger;
+
+/**
+ * Axis datasets.
+ */
+public class AxisDataset
+{
+    private static Logger logger = Logger.getLogger(AxisDataset.class);
+
+    /** Symbolic integer, but also coding the priority (0 goes first). */
+    protected int axisSymbol;
+
+    /** List of assigned datasets (in order). */
+    protected List<XYDataset> datasets;
+
+    /** Range to use to include all given datasets. */
+    protected Range range;
+
+    /** Index of axis in plot. */
+    protected int plotAxisIndex;
+
+    protected boolean rangeDirty;
+
+    /** Create AxisDataset. */
+    public AxisDataset(int symb) {
+        axisSymbol = symb;
+        datasets   = new ArrayList<XYDataset>();
+    }
+
+    /** Add a dataset to internal list for this axis. */
+    public void addDataset(XYDataset dataset) {
+        datasets.add(dataset);
+        rangeDirty = true;
+    }
+
+    /** Add a dataset. */
+    public void addDataset(XYSeries series) {
+        addDataset(new XYSeriesCollection(series));
+    }
+
+    public void setRange(Range val) {
+        range = val;
+    }
+
+    /** Get Range for the range axis of this dataset. */
+    public Range getRange() {
+        if (range != null && !rangeDirty) {
+            return range;
+        }
+        /* Calculate the min / max of all series */
+        for (XYDataset dataset: datasets) {
+            Range newRange = null;
+            if (dataset instanceof StyledAreaSeriesCollection) {
+                /* We do not include areas in the range calculation because
+                 * they are used with very large / small values to draw areas
+                 * with axis boundaries */
+                continue;
+            } else if (dataset instanceof RangeInfo) {
+                /* The usual case for most series */
+                newRange = ((RangeInfo) dataset).getRangeBounds(false);
+            } else if (dataset instanceof TimeSeriesCollection) {
+                /* Lalala <3 Jfreechart's class hirarchy */
+                newRange = ((TimeSeriesCollection) dataset).getRangeBounds(false);
+            }
+
+            /* Now we only expand as we also only add new data */
+            if (range == null) {
+                range = newRange;
+            } else {
+                range = Range.combineIgnoringNaN(range, newRange);
+            }
+        }
+        rangeDirty = false;
+        return range;
+    }
+
+    /** Get Array of Datasets. */
+    public XYDataset[] getDatasets() {
+        return datasets.toArray(new XYDataset[datasets.size()]);
+    }
+
+    /** True if to be rendered as area. */
+    public boolean isArea(XYDataset series) {
+        return (series instanceof StyledAreaSeriesCollection);
+    }
+
+    /** True if no datasets given. */
+    public boolean isEmpty() {
+        return datasets.isEmpty();
+    }
+
+    /** Set the 'real' axis index that this axis is mapped to. */
+    public void setPlotAxisIndex(int axisIndex) {
+        plotAxisIndex = axisIndex;
+    }
+
+    /** Get the 'real' axis index that this axis is mapped to. */
+    public int getPlotAxisIndex() {
+        return plotAxisIndex;
+    }
+
+    /** Add a Dataset that describes an area. */
+    public void addArea(StyledAreaSeriesCollection series) {
+        addDataset(series);
+    }
+
+}