--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-client/src/main/java/de/intevation/flys/client/client/ui/ParameterList.java	Tue Feb 22 17:39:23 2011 +0000
@@ -0,0 +1,112 @@
+package de.intevation.flys.client.client.ui;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.smartgwt.client.types.VerticalAlignment;
+import com.smartgwt.client.widgets.Label;
+import com.smartgwt.client.widgets.layout.HLayout;
+import com.smartgwt.client.widgets.layout.VLayout;
+
+import de.intevation.flys.client.shared.model.Data;
+import de.intevation.flys.client.shared.model.DataItem;
+
+
+public class ParameterList extends VLayout {
+
+    protected List<Data> old;
+    protected Data       current;
+
+    protected UIProvider uiProvider;
+
+    protected VLayout oldItems;
+    protected VLayout currentItems;
+
+    public ParameterList() {
+        old          = new ArrayList<Data>();
+        oldItems     = new VLayout();
+        currentItems = new VLayout();
+
+        init();
+    }
+
+
+    protected void init() {
+        oldItems.setHeight(20);
+        currentItems.setHeight("*");
+        currentItems.setAlign(VerticalAlignment.TOP);
+
+        addMember(oldItems);
+        addMember(currentItems);
+    }
+
+
+    public void addOldData(Data old) {
+        if (old != null) {
+            this.old.add(old);
+        }
+
+        refreshOld();
+    }
+
+
+    public void addOldDatas(Data[] old) {
+        if (old != null && old.length > 0) {
+            for (Data o: old) {
+                addOldData(o);
+            }
+
+            return;
+        }
+
+        addOldData(null);
+    }
+
+
+    public void setCurrentData(Data current, UIProvider uiProvider) {
+        this.current    = current;
+        this.uiProvider = uiProvider;
+
+        refreshCurrent();
+    }
+
+
+    public void refreshOld() {
+        // XXX maybe we should not remove all items but just add the newest item
+        // to the list.
+        oldItems.removeMembers(oldItems.getMembers());
+
+        for (Data data: old) {
+            HLayout h = new HLayout();
+            h.setAlign(VerticalAlignment.TOP);
+            h.setHeight(20);
+
+            DataItem[] items = data.getItems();
+            Label label = new Label(data.getLabel());
+            Label value = new Label(items[0].getLabel());
+
+            h.addMember(label);
+            h.addMember(value);
+
+            oldItems.addMember(h);
+        }
+
+        int minHeight = oldItems.getMinHeight();
+        if (minHeight <= 20) {
+            oldItems.setHeight(20);
+        }
+        else {
+            oldItems.setHeight(minHeight);
+        }
+    }
+
+
+    /**
+     * This method refreshes the part displaying the data of the current state.
+     * The UI is created using the UIProvider stored in the Data object.
+     */
+    public void refreshCurrent() {
+        currentItems.addMember(uiProvider.create(current));
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :