--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/state/SwitchModeState.java	Tue May 18 16:28:05 2010 +0000
@@ -0,0 +1,128 @@
+package de.intevation.gnv.state;
+
+import de.intevation.artifactdatabase.XMLUtils;
+
+import de.intevation.artifacts.CallContext;
+import de.intevation.artifacts.CallMeta;
+import de.intevation.artifacts.PreferredLocale;
+
+import de.intevation.gnv.artifacts.ressource.RessourceFactory;
+
+import org.apache.log4j.Logger;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+
+
+/**
+ * This task of this <code>State</code> implementation is to switch between
+ * working with vector or scalar data.
+ *
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public class SwitchModeState extends StateBase {
+
+    public static final String VECTOR_VALUE = "vector";
+    public static final String SCALAR_VALUE = "scalar";
+
+    public static final String RESSOURCE_VECTOR = "vectorvalues";
+    public static final String RESSOURCE_SCALAR = "scalarvalues";
+
+    private static Logger logger = Logger.getLogger(SwitchModeState.class);
+
+    public SwitchModeState() {
+    }
+
+
+    @Override
+    protected void describeDynamic(
+        XMLUtils.ElementCreator artCreator,
+        XMLUtils.ElementCreator creator,
+        Document                document,
+        Node                    dynamic,
+        CallContext             context,
+        String                  uuid)
+    {
+        RessourceFactory ressource = RessourceFactory.getInstance();
+        CallMeta callMeta          = context.getMeta();
+        PreferredLocale[] locales  = callMeta.getLanguages();
+
+        Element selectNode = creator.create("select1");
+        creator.addAttr(selectNode, "ref", dataName);
+
+        Element labelNode = creator.create("label");
+        labelNode.setTextContent(ressource.getRessource(
+            locales, dataName, dataName));
+        selectNode.appendChild(labelNode);
+
+        selectNode.appendChild(createChoices(creator, context));
+        dynamic.appendChild(selectNode);
+        logger.debug("creating dynamic ui elements finished");
+    }
+
+
+    protected Node createChoices(
+        XMLUtils.ElementCreator creator,
+        CallContext             context)
+    {
+        RessourceFactory ressource = RessourceFactory.getInstance();
+        CallMeta callMeta          = context.getMeta();
+        PreferredLocale[] locales  = callMeta.getLanguages();
+
+        Element choiceNodes = creator.create("choices");
+
+        // add choice for scalar values
+        logger.debug("create choice for scalar values");
+        Element scalar = creator.create("item");
+        Element label  = creator.create("label");
+        label.setTextContent(ressource.getRessource(
+            locales, RESSOURCE_SCALAR, RESSOURCE_SCALAR));
+        scalar.appendChild(label);
+
+        Element value = creator.create("value");
+        value.setTextContent(SCALAR_VALUE);
+        scalar.appendChild(value);
+
+        // add choice for vector values
+        logger.debug("create choice for vector values");
+        Element vector = creator.create("item");
+        label  = creator.create("label");
+        label.setTextContent(ressource.getRessource(
+            locales, RESSOURCE_VECTOR, RESSOURCE_VECTOR));
+        vector.appendChild(label);
+
+        value = creator.create("value");
+        value.setTextContent(VECTOR_VALUE);
+        vector.appendChild(value);
+
+        choiceNodes.appendChild(scalar);
+        choiceNodes.appendChild(vector);
+
+        return choiceNodes;
+    }
+
+
+    @Override
+    protected String[] getDescriptionForInputData(
+        InputData data, CallContext context, String uuid)
+    {
+        RessourceFactory ressource = RessourceFactory.getInstance();
+        CallMeta callMeta          = context.getMeta();
+        PreferredLocale[] locales  = callMeta.getLanguages();
+
+        String value = data.getValue();
+
+        if (value != null && value.equals(SCALAR_VALUE)) {
+            return new String[] { ressource.getRessource(
+                locales, RESSOURCE_SCALAR, RESSOURCE_SCALAR) };
+        }
+        else if (value != null && value.equals(VECTOR_VALUE)) {
+            return new String[] { ressource.getRessource(
+                locales, RESSOURCE_VECTOR, RESSOURCE_VECTOR) };
+        }
+
+        return null;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :