code: private ToolStrip buildToolstrip(MapWidget mapWidget) {
  		toolStrip = new ToolStrip();
  		toolStrip.setWidth100();
  		toolStrip.setPadding(3);
  
  		ClientLayerTreeInfo layerTreeInfo = mapModel.getMapInfo().getLayerTree();
  		if (layerTreeInfo != null) {
  			for (ClientToolInfo tool : layerTreeInfo.getTools()) {
  				String id = tool.getToolId();
  				Canvas button = null;
  				ToolbarBaseAction action = LayerTreeRegistry.getToolbarAction(id, mapWidget);
  				if (action instanceof ToolbarWidget) {
  					toolStrip.addMember(((ToolbarWidget) action).getWidget());
  				} else if (action instanceof ToolbarCanvas) {
  					button = ((ToolbarCanvas) action).getCanvas();
  				} else if (action instanceof LayerTreeAction) {
  					button = new LayerTreeButton(this, (LayerTreeAction) action);
  				} else if (action instanceof LayerTreeModalAction) {
  					button = new LayerTreeModalButton(this, (LayerTreeModalAction) action);
  				} else {
  					String msg = "LayerTree tool with id " + id + " unknown.";
  					Log.logError(msg); // console log
  					SC.warn(msg); // in your face
  				}
  				if (button != null) {
  					toolStrip.addMember(button);
  					LayoutSpacer spacer = new LayoutSpacer();
  					spacer.setWidth(WidgetLayout.layerTreePadding);
  					toolStrip.addMember(spacer);
  				}
  			}
  		}
  		final Canvas[] toolStripMembers = toolStrip.getMembers();
  		// delaying this fixes an image 'undefined' error
  		Timer t = new Timer() {
  			public void run() {
  				updateButtonIconsAndStates(toolStripMembers);
  			}
  
  		};
  		t.schedule(10);
  		return toolStrip;
  	}
docs: Builds the toolbar
  
  @param mapWidget
  The mapWidget containing the layerTree
  @return {@link com.smartgwt.client.widgets.toolbar.ToolStrip} which was built