--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-client/src/main/java/de/intevation/flys/client/client/ui/InfoPanel.java	Fri Oct 26 12:19:54 2012 +0200
@@ -0,0 +1,170 @@
+package de.intevation.flys.client.client.ui;
+
+import com.google.gwt.core.client.GWT;
+
+import com.smartgwt.client.types.Overflow;
+import com.smartgwt.client.widgets.Canvas;
+import com.smartgwt.client.widgets.events.ResizedEvent;
+import com.smartgwt.client.widgets.events.ResizedHandler;
+import com.smartgwt.client.widgets.layout.SectionStackSection;
+import com.smartgwt.client.widgets.layout.VLayout;
+import com.smartgwt.client.widgets.WidgetCanvas;
+
+import de.intevation.flys.client.client.FLYSConstants;
+import de.intevation.flys.client.client.services.RiverInfoService;
+import de.intevation.flys.client.client.services.RiverInfoServiceAsync;
+import de.intevation.flys.client.shared.model.DataList;
+import de.intevation.flys.client.shared.model.RiverInfo;
+
+/**
+ * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
+ */
+public abstract class InfoPanel extends VLayout implements ResizedHandler {
+
+    /** SectionStackSection where this InfoPanel belongs in*/
+    protected SectionStackSection section;
+
+    /** Name of the river */
+    protected String river;
+
+    /** The message class that provides i18n strings.*/
+    protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
+
+    protected RiverInfoServiceAsync riverInfoService = GWT.create(RiverInfoService.class);
+
+    /** Panel to show the info about the river */
+    protected RiverInfoPanel riverinfopanel;
+    protected InfoTree tree;
+
+    /** Wrapper arround the GWT Tree (InfoTree) object */
+    protected Canvas treecanvas;
+
+    protected final static String SECTION_ID = "InfoPanelSection";
+
+    public InfoPanel(InfoTree tree) {
+        SectionStackSection section = new SectionStackSection();
+        section.setExpanded(false);
+        section.setTitle(getSectionTitle());
+        section.setName(SECTION_ID);
+        section.setID(SECTION_ID);
+
+        treecanvas = new WidgetCanvas(tree);
+
+        setOverflow(Overflow.HIDDEN);
+        setStyleName("infopanel");
+
+        section.setHidden(true);
+        section.setItems(this);
+        this.section = section;
+        this.tree = tree;
+
+        addResizedHandler(this);
+    }
+
+    /**
+     * Sets and loads the river data if river is not the current set river
+     */
+    public void setRiver(String river) {
+        if (!river.equals(this.river)) {
+            this.river = river;
+            this.refresh();
+        }
+    }
+
+    /**
+     * Sets the data and closes not corresponding folds in the gauge tree
+     */
+    public void setData(DataList[] data) {
+        tree.setData(data);
+    }
+
+    protected void render(RiverInfo riverinfo) {
+        tree.setRiverInfo(riverinfo);
+
+        if (riverinfopanel == null) {
+            removeAllMembers();
+
+            riverinfopanel = new RiverInfoPanel(riverinfo);
+
+            addMember(riverinfopanel);
+            addMember(treecanvas);
+        }
+        else {
+            riverinfopanel.setRiverInfo(riverinfo);
+        }
+    }
+
+    @Override
+        public void onResized(ResizedEvent event) {
+            /* this height calculation is only an approximation and doesn't reflect
+             * the real height of the the gaugetree. */
+            int height = getInnerContentHeight() -
+                RiverInfoPanel.getStaticHeight();
+            int width = getInnerContentWidth();
+
+            if (height < 0) {
+                height = 0;
+            }
+
+            GWT.log("InfoPanel - onResize " + height);
+
+            tree.setHeight("" + height + "px");
+            tree.setWidth("" + width + "px");
+        }
+
+    /**
+     * Hide the section stack section.
+     */
+    @Override
+        public void hide() {
+            GWT.log("InfoPanel - hide");
+            this.section.setHidden(true);
+        }
+
+    /**
+     * Show the section stack section.
+     */
+    @Override
+        public void show() {
+            GWT.log("InfoPanel - show");
+            this.section.setHidden(false);
+        }
+
+    @Override
+        public void addMember(Canvas component) {
+            super.addMember(component);
+            expand();
+        }
+
+    @Override
+        public void removeMembers(Canvas[] components) {
+            super.removeMembers(components);
+            contract();
+        }
+
+    public SectionStackSection getSection() {
+        return this.section;
+    }
+
+    protected void removeAllMembers() {
+        removeMembers(getMembers());
+    }
+
+    /**
+     * Expands the gauge section
+     */
+    public void expand() {
+        section.setExpanded(true);
+    }
+
+    /**
+     * Contracts/shrinks the expanded gauge section
+     */
+    public void contract() {
+        section.setExpanded(false);
+    }
+
+    protected abstract void refresh();
+
+    protected abstract String getSectionTitle();
+}