diff artifacts/src/main/java/org/dive4elements/river/jfree/StripedAreaDatasetRenderer.java @ 9496:d8e753d0fdb9

stripedArea introduced for Assessment Scheme/Bewertungsschema
author gernotbelger
date Wed, 26 Sep 2018 15:48:05 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/jfree/StripedAreaDatasetRenderer.java	Wed Sep 26 15:48:05 2018 +0200
@@ -0,0 +1,69 @@
+/** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
+ * Software engineering by
+ *  Björnsen Beratende Ingenieure GmbH
+ *  Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
+ *
+ * This file is Free Software under the GNU AGPL (>=v3)
+ * and comes with ABSOLUTELY NO WARRANTY! Check out the
+ * documentation coming with Dive4Elements River for details.
+ */
+package org.dive4elements.river.jfree;
+
+import java.awt.Graphics2D;
+import java.awt.Paint;
+import java.awt.Stroke;
+import java.awt.geom.GeneralPath;
+import java.awt.geom.Rectangle2D;
+
+import org.dive4elements.river.jfree.StripedAreaDataset.Stripe;
+import org.jfree.chart.axis.ValueAxis;
+import org.jfree.chart.plot.CrosshairState;
+import org.jfree.chart.plot.PlotRenderingInfo;
+import org.jfree.chart.plot.XYPlot;
+import org.jfree.chart.renderer.xy.AbstractXYItemRenderer;
+import org.jfree.chart.renderer.xy.XYItemRendererState;
+import org.jfree.data.xy.XYDataset;
+
+/**
+ * @author Domenico Nardi Tironi
+ */
+final class StripedAreaDatasetRenderer extends AbstractXYItemRenderer {
+
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public void drawItem(final Graphics2D g2, final XYItemRendererState state, final Rectangle2D dataArea, final PlotRenderingInfo info, final XYPlot plot,
+            final ValueAxis domainAxis, final ValueAxis rangeAxis, final XYDataset dataset, final int series, final int item,
+            final CrosshairState crosshairState, final int pass) {
+
+        if (item != 0)
+            return;
+
+        final StripedAreaDataset stripedDataset = (StripedAreaDataset) dataset;
+        final Stripe stripe = stripedDataset.getStripe(series);
+
+        final double lower = stripe.getLower();
+        final double upper = stripe.getUpper();
+
+        final double transLower = Double.isNaN(lower) ? dataArea.getMaxY() : rangeAxis.valueToJava2D(lower, dataArea, plot.getRangeAxisEdge());
+        final double transUpper = Double.isNaN(upper) ? dataArea.getMinY() : rangeAxis.valueToJava2D(upper, dataArea, plot.getRangeAxisEdge());
+
+        final double transLeft = dataArea.getMinX();
+        final double transRight = dataArea.getMaxX();
+
+        final GeneralPath area = new GeneralPath();
+
+        area.moveTo(transLeft, transLower);
+        area.lineTo(transRight, transLower);
+        area.lineTo(transRight, transUpper);
+        area.lineTo(transLeft, transUpper);
+        area.closePath();
+
+        final Paint paint = getItemPaint(series, item);
+        final Stroke stroke = getItemStroke(series, item);
+        g2.setPaint(paint);
+        g2.setStroke(stroke);
+
+        g2.fill(area);
+    }
+}
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