diff flys-artifacts/src/main/java/de/intevation/flys/exports/ChartGenerator.java @ 2047:0318fa6f0844

Make use of first attributes specified in the ChartSettings. NOTE: work is still in progress. flys-artifacts/trunk@3535 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 23 Dec 2011 08:57:25 +0000
parents a7c437c9547e
children 49b7c2b1a6a7
line wrap: on
line diff
--- a/flys-artifacts/src/main/java/de/intevation/flys/exports/ChartGenerator.java	Fri Dec 23 08:51:28 2011 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/exports/ChartGenerator.java	Fri Dec 23 08:57:25 2011 +0000
@@ -78,6 +78,9 @@
     /** The artifact that is used to decorate the chart with meta information.*/
     protected Artifact master;
 
+    /** The settings that should be used during output creation.*/
+    protected Settings settings;
+
 
     public void init(Document request, OutputStream out, CallContext context) {
         logger.debug("ChartGenerator.init");
@@ -93,6 +96,98 @@
     }
 
 
+    @Override
+    public void setSettings(Settings settings) {
+        this.settings = settings;
+    }
+
+
+    /**
+     * Returns the chart title provided by <i>settings</i>.
+     *
+     * @param settings A ChartSettings object.
+     *
+     * @return the title provided by <i>settings</i> or null if no
+     * <i>ChartSection</i> is provided by <i>settings</i>.
+     *
+     * @throws NullPointerException if <i>settings</i> is null.
+     */
+    public String getChartTitle(ChartSettings settings) {
+        ChartSection cs = settings.getChartSection();
+        return cs != null ? cs.getTitle() : null;
+    }
+
+
+    /**
+     * Returns the chart subtitle provided by <i>settings</i>.
+     *
+     * @param settings A ChartSettings object.
+     *
+     * @return the subtitle provided by <i>settings</i> or null if no
+     * <i>ChartSection</i> is provided by <i>settings</i>.
+     *
+     * @throws NullPointerException if <i>settings</i> is null.
+     */
+    public String getChartSubtitle(ChartSettings settings) {
+        ChartSection cs = settings.getChartSection();
+        return cs != null ? cs.getSubtitle() : null;
+    }
+
+
+    /**
+     * Returns a boolean object that determines if the chart grid should be
+     * visible or not. This information needs to be provided by <i>settings</i>,
+     * otherweise the default is true.
+     *
+     * @param settings A ChartSettings object.
+     *
+     * @return true, if the chart grid should be visible otherwise false.
+     *
+     * @throws NullPointerException if <i>settings</i> is null.
+     */
+    public boolean isGridVisible(ChartSettings settings) {
+        ChartSection     cs = settings.getChartSection();
+        Boolean displayGrid = cs.getDisplayGrid();
+
+        return displayGrid != null ? displayGrid : true;
+    }
+
+
+    /**
+     * Returns a boolean object that determines if the chart legend should be
+     * visible or not. This information needs to be provided by <i>settings</i>,
+     * otherwise the default is true.
+     *
+     * @param settings A ChartSettings object.
+     *
+     * @return true, if the chart legend should be visible otherwise false.
+     *
+     * @throws NullPointerException if <i>settings</i> is null.
+     */
+    public boolean isLegendVisible(ChartSettings settings) {
+        LegendSection      ls = settings.getLegendSection();
+        Boolean displayLegend = ls.getVisibility();
+
+        return displayLegend != null ? displayLegend : true;
+    }
+
+
+    /**
+     * Returns the legend font size specified in <i>settings</i> or null if no
+     * <i>LegendSection</i> is provided by <i>settings</i>.
+     *
+     * @param settings A ChartSettings object.
+     *
+     * @return the legend font size or null.
+     *
+     * @throws NullPointerException if <i>settings</i> is null.
+     */
+    public Integer getLegendFontSize(ChartSettings settings) {
+        LegendSection ls = settings.getLegendSection();
+        return ls != null ? ls.getFontSize() : null;
+    }
+
+
     protected Locale getLocale() {
         CallMeta           meta = context.getMeta();
         PreferredLocale[] prefs = meta.getLanguages();
@@ -295,7 +390,22 @@
      * @return an instance of <i>EmptySettings</i>.
      */
     public Settings getSettings() {
-        return new EmptySettings();
+        return settings != null ? settings : new EmptySettings();
+    }
+
+
+    /**
+     * Returns the <i>settings</i> as <i>ChartSettings</i>.
+     *
+     * @return the <i>settings</i> as <i>ChartSettings</i> or null, if
+     * <i>settings</i> is not an instance of <i>ChartSettings</i>.
+     */
+    public ChartSettings getChartSettings() {
+        if (settings instanceof ChartSettings) {
+            return (ChartSettings) settings;
+        }
+
+        return null;
     }
 }
 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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