GeoGWT - MapPanel with ToolBar

Source

Below is all you need to setup the example.

public class Maptoolbar_panel implements EntryPoint {

    /** The main. */
    private ContentPanel main;

    /** The center. */
    protected ContentPanel center;

    /** The north. */
    protected ContentPanel north;

    /* (non-Javadoc)
     * @see com.google.gwt.core.client.EntryPoint#onModuleLoad()
     */
    public void onModuleLoad() {
        GXT.hideLoadingPanel("loading");

        /**
         * Adding widgets to Viewport panels
         */
        this.main = new ContentPanel();
        this.main.setLayout(new BorderLayout());
        this.main.setHeaderVisible(true);
        this.main.setHeading("GeoGWT MapToolbar Example");

        loadConfiguration();
    }

    /**
     * Load configuration.
     */
    private void loadConfiguration() {
        /** Example: trying to load toolbar components from applicationContext automatically **/
        /* GeoGWTConfigurationRemote.Util.getInstance().initServerConfiguration(
                new AsyncCallback() {

                    public void onSuccess(GeoGWTConfiguration result) {
                        GeoGWTUtils.getInstance().setGlobalConfiguration(result);
                        
                        createCenter();
                        createNorth();

                        main.setWidth(558);
                        main.setHeight(333);
                        
                        RootPanel.get("maptoolbar").add(main);

                    }

                    public void onFailure(Throwable caught) {
                        Info.display("Configuration Service Error", caught.getMessage());
                    }
                }); */
        
        /** Example: loading toolbar manually **/
        ToolbarItemManager toolbarItemManager = new ToolbarItemManager();
        
        // defining toolbar tools
        GenericClientTool toolbarSeparator = new GenericClientTool();
        toolbarSeparator.setId(ButtonBar.TOOLBAR_SEPARATOR);
        toolbarSeparator.setOrder(30);

        ActionClientTool zoomBox = new ActionClientTool();
        zoomBox.setId("zoomBox");
        zoomBox.setEnabled(true);
        zoomBox.setType("toggle");
        zoomBox.setOrder(0);
        
        ActionClientTool zoomIn = new ActionClientTool();
        zoomIn.setId("zoomIn");
        zoomIn.setEnabled(true);
        zoomIn.setType("button");
        zoomIn.setOrder(10);
        
        ActionClientTool zoomOut = new ActionClientTool();
        zoomOut.setId("zoomOut");
        zoomOut.setEnabled(true);
        zoomOut.setType("button");
        zoomOut.setOrder(20);
        
        ActionClientTool drawFeature = new ActionClientTool();
        drawFeature.setId("drawFeature");
        drawFeature.setEnabled(true);
        drawFeature.setType("toggle");
        drawFeature.setOrder(50);
        
        List clientTools = new ArrayList();
        clientTools.add(zoomBox);
        clientTools.add(zoomIn);
        clientTools.add(zoomOut);
        clientTools.add(toolbarSeparator);
        clientTools.add(drawFeature);
        
        toolbarItemManager.setClientTools(clientTools);
        
        if (GeoGWTUtils.getInstance().getGlobalConfiguration() == null) {
            GeoGWTUtils.getInstance().setGlobalConfiguration(new GeoGWTConfiguration());
        }
        
        GeoGWTUtils.getInstance().getGlobalConfiguration().setToolbarItemManager(toolbarItemManager); 
        
        createCenter();
        createNorth();

        main.setWidth(558);
        main.setHeight(333);
        
        RootPanel.get("maptoolbar").add(main);
    }

    /**
     * Creates the north.
     */
    private void createNorth() {
        north = new ContentPanel();
        north.setHeaderVisible(false);
        north.addListener(Events.Resize, new Listener() {

            public void handleEvent(BaseEvent be) {
                Dispatcher.forwardEvent(GeoGWTEvents.UPDATE_MAP_SIZE);
            }
        });

        BorderLayoutData data = new BorderLayoutData(LayoutRegion.NORTH, 30);
        data.setMargins(new Margins(0, 5, 0, 5));
        data.setSplit(true);

        main.add(north, data);

        Dispatcher.forwardEvent(GeoGWTEvents.ATTACH_TOOLBAR, this.north);
    }

    /**
     * Creates the center.
     */
    private void createCenter() {
        center = new ContentPanel();
        center.setHeaderVisible(false);
        center.setLayout(new BorderLayout());

        ContentPanel maptoolbar_panel = new ContentPanel();
        maptoolbar_panel.setLayout(new FitLayout());
        maptoolbar_panel.setHeaderVisible(false);
        maptoolbar_panel.setHeading("GeoGWT MapView");
        maptoolbar_panel.addListener(Events.Resize, new Listener() {

            public void handleEvent(BaseEvent be) {
                Dispatcher.forwardEvent(GeoGWTEvents.UPDATE_MAP_SIZE);
            }
        });
        maptoolbar_panel.addListener(Events.Move, new Listener() {

            public void handleEvent(BaseEvent be) {
                Dispatcher.forwardEvent(GeoGWTEvents.UPDATE_MAP_SIZE);
            }
        });
        maptoolbar_panel.setMonitorWindowResize(true);
        maptoolbar_panel.setLayoutOnChange(true);

        BorderLayoutData data = new BorderLayoutData(LayoutRegion.CENTER);
        data.setCollapsible(false);
        data.setFloatable(false);
        data.setSplit(true);
        data.setMargins(new Margins(0));

        // add map to center region of center panel
        center.add(maptoolbar_panel, data);

        data = new BorderLayoutData(LayoutRegion.CENTER);
        data.setMargins(new Margins(5, 5, 5, 5));
        data.setCollapsible(true);
        data.setSplit(true);

        // add center panel to center region of viewport
        main.add(center, data);

        /* map options */
        MapOptions mapOptions = new MapOptions();
        mapOptions.setUnits(MapUnits.DEGREES);
        mapOptions.setProjection("EPSG:4326");

        Dispatcher.forwardEvent(GeoGWTEvents.INIT_MAPS_UI_MODULE, mapOptions);

        /* base layer */
        WMSParams wmsParams = new WMSParams();
        wmsParams.setFormat("image/png");
        wmsParams.setLayers("GeoSolutions:ne_shaded");
        wmsParams.setStyles("");

        WMSOptions wmsLayerParams = new WMSOptions();
        wmsLayerParams.setTransitionEffect(TransitionEffect.RESIZE);

        WMS layer = new WMS("GeoSolutions Natural Earth",
                "http://demo1.geo-solutions.it/playground/wms", wmsParams, wmsLayerParams);
        Dispatcher.forwardEvent(GeoGWTEvents.ADD_LAYER, layer);

        Dispatcher.forwardEvent(GeoGWTEvents.ATTACH_MAP_WIDGET, maptoolbar_panel);

        // Adjusting the Zoom level
        // Dispatcher.forwardEvent(GeoGWTEvents.ZOOM_TO_MAX_EXTENT);
        Dispatcher.forwardEvent(GeoGWTEvents.SET_MAP_CENTER, new Double[] { 13.0, 42.0 });
        Dispatcher.forwardEvent(GeoGWTEvents.ZOOM, 5);
    }
}