--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/jfree/XYStyle.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,229 @@
+package org.dive4elements.river.jfree;
+
+import org.dive4elements.river.utils.ThemeUtil;
+
+import java.awt.BasicStroke;
+import java.awt.Color;
+import java.awt.geom.Ellipse2D;
+
+import org.apache.log4j.Logger;
+import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
+import org.w3c.dom.Document;
+
+
+/**
+ * Utility to apply theme-settings to a renderer.
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public class XYStyle implements Style {
+
+    private static Logger logger = Logger.getLogger(XYStyle.class);
+
+    protected Document theme;
+
+    protected XYLineAndShapeRenderer renderer;
+
+
+    public XYStyle(Document theme) {
+        this.theme = theme;
+        this.renderer = null;
+    }
+
+
+    /**
+     * Applies line color, size and type attributes to renderer, also
+     * whether to draw lines and/or points.
+     */
+    @Override
+    public XYLineAndShapeRenderer applyTheme(XYLineAndShapeRenderer r, int idx){
+        this.renderer = r;
+        applyLineColor(r, idx);
+        applyLineSize(r, idx);
+        applyLineType(r, idx);
+        applyShowLine(r, idx);
+        applyShowPoints(r, idx);
+        applyPointSize(r, idx);
+        applyPointColor(r, idx);
+        applyShowMinimum(r, idx);
+        applyShowMaximum(r, idx);
+
+        // Line label styles
+        applyShowLineLabel(r, idx);
+        applyShowLineLabelBG(r, idx);
+        applyLineLabelFont(r, idx);
+        applyLineLabelColor(r, idx);
+        applyLineLabelBGColor(r, idx);
+
+        // Point label styles
+        // TODO: Currently point label are annotations and are not drawn this way
+        /*
+        applyShowPointLabelBG(r, idx);
+        applyLinePointFont(r, idx);
+        applyLinePointColor(r, idx);
+        applyLinePointBGColor(r, idx);*/
+
+        return r;
+    }
+
+
+    /** Set line color to renderer. */
+    protected void applyLineColor(XYLineAndShapeRenderer r, int idx) {
+        Color c = ThemeUtil.parseLineColorField(theme);
+        if(c != null) {
+            logger.debug("applyLineColor " + c.toString());
+            r.setSeriesPaint(idx, c);
+        }
+        else {
+            logger.warn("applyLineColor: color is null - malformed linecolor field?");
+        }
+    }
+
+
+    /** Tells the renderer whether or not to add a label to a line. */
+    protected void applyShowLineLabel(XYLineAndShapeRenderer r, int idx) {
+        if (!(r instanceof EnhancedLineAndShapeRenderer)) {
+            return;
+        }
+        boolean showLabelLine = ThemeUtil.parseShowLineLabel(theme);
+        boolean anyLabel = showLabelLine || ThemeUtil.parseShowWidth(theme) ||
+                           ThemeUtil.parseShowLevel(theme) ||
+                           ThemeUtil.parseShowMiddleHeight(theme);
+        ((EnhancedLineAndShapeRenderer)r).setShowLineLabel(anyLabel, idx);
+    }
+
+
+    /** Tells the renderer whether or not to fill the bg of a lines label. */
+    protected void applyShowLineLabelBG(XYLineAndShapeRenderer r, int idx) {
+        if (!(r instanceof EnhancedLineAndShapeRenderer)) {
+            return;
+        }
+        boolean showLabelLine = ThemeUtil.parseLabelShowBackground(theme);
+        ((EnhancedLineAndShapeRenderer)r).setShowLineLabelBG(idx, showLabelLine);
+    }
+
+    /** Tell the renderer which font (and -size and -style) to use for
+     * linelabels. */
+    protected void applyLineLabelFont(XYLineAndShapeRenderer r, int idx) {
+        if (!(r instanceof EnhancedLineAndShapeRenderer)) {
+            return;
+        }
+        ((EnhancedLineAndShapeRenderer)r).setLineLabelFont(
+                ThemeUtil.parseTextFont(theme), idx);
+    }
+
+    /** Tell the renderer which color to use for
+     * linelabels. */
+    protected void applyLineLabelColor(XYLineAndShapeRenderer r, int idx) {
+        if (!(r instanceof EnhancedLineAndShapeRenderer)) {
+            return;
+        }
+        ((EnhancedLineAndShapeRenderer)r).setLineLabelTextColor(
+                idx, ThemeUtil.parseTextColor(theme));
+    }
+
+    /** Tell the renderer which color to use for bg of
+     * linelabels. */
+    protected void applyLineLabelBGColor(XYLineAndShapeRenderer r, int idx) {
+        if (!(r instanceof EnhancedLineAndShapeRenderer)) {
+            return;
+        }
+        ((EnhancedLineAndShapeRenderer)r).setLineLabelBGColor(idx,
+            ThemeUtil.parseTextBackground(theme));
+    }
+
+    /** Set stroke of series. */
+    protected void applyLineSize(XYLineAndShapeRenderer r, int idx) {
+        int size = ThemeUtil.parseLineWidth(theme);
+        r.setSeriesStroke(
+            idx,
+            new BasicStroke(size));
+    }
+
+
+    /** Set stroke strength of series. */
+    protected void applyLineType(XYLineAndShapeRenderer r, int idx) {
+        int size = ThemeUtil.parseLineWidth(theme);
+        float[] dashes = ThemeUtil.parseLineStyle(theme);
+
+        // Do not apply the dashed style.
+        if (dashes.length <= 1) {
+            return;
+        }
+
+        r.setSeriesStroke(
+            idx,
+            new BasicStroke(size,
+                            BasicStroke.CAP_BUTT,
+                            BasicStroke.JOIN_ROUND,
+                            1.0f,
+                            dashes,
+                            0.0f));
+    }
+
+
+    protected void applyPointSize(XYLineAndShapeRenderer r, int idx) {
+        int size = ThemeUtil.parsePointWidth(theme);
+        int dim  = 2 * size;
+
+        r.setSeriesShape(idx, new Ellipse2D.Double(-size, -size, dim, dim));
+    }
+
+
+    protected void applyPointColor(XYLineAndShapeRenderer r, int idx) {
+        Color c = ThemeUtil.parsePointColor(theme);
+
+        if (c != null) {
+            r.setSeriesFillPaint(idx, c);
+            r.setUseFillPaint(true);
+            r.setDrawOutlines(false);
+        }
+    }
+
+
+    /**
+     * Sets form and visibility of points.
+     */
+    protected void applyShowPoints(XYLineAndShapeRenderer r, int idx) {
+        boolean show = ThemeUtil.parseShowPoints(theme);
+
+        r.setSeriesShapesVisible(idx, show);
+        r.setDrawOutlines(true);
+    }
+
+
+    protected void applyShowLine(XYLineAndShapeRenderer r, int idx) {
+        boolean show = ThemeUtil.parseShowLine(theme);
+        r.setSeriesLinesVisible(idx, show);
+    }
+
+
+    protected void applyShowMinimum(XYLineAndShapeRenderer r, int idx) {
+        if (!(r instanceof EnhancedLineAndShapeRenderer)) {
+            return;
+        }
+
+        boolean visible = ThemeUtil.parseShowMinimum(theme);
+
+        EnhancedLineAndShapeRenderer er = (EnhancedLineAndShapeRenderer) r;
+        er.setIsMinimumShapeVisisble(idx, visible);
+    }
+
+
+    protected void applyShowMaximum(XYLineAndShapeRenderer r, int idx) {
+        if (!(r instanceof EnhancedLineAndShapeRenderer)) {
+            return;
+        }
+
+        boolean visible = ThemeUtil.parseShowMaximum(theme);
+
+        EnhancedLineAndShapeRenderer er = (EnhancedLineAndShapeRenderer) r;
+        er.setIsMaximumShapeVisible(idx, visible);
+    }
+
+
+    @Override
+    public XYLineAndShapeRenderer getRenderer() {
+        return this.renderer;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :