geoportal-data-viewer-app/src/main/java/org/gcube/portlets/user/geoportaldataviewer/client/ui/GeonaDataViewMainPanel.ui.xml

<!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
<ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
	xmlns:g="urn:import:com.google.gwt.user.client.ui"
	xmlns:b="urn:import:com.github.gwtbootstrap.client.ui">
	<ui:style>
	.margin-right-10 {
		margin-right: 10px;
	}
	</ui:style>
	<g:HTMLPanel ui:field="mainHTMLPanel">
		<b:TabPanel ui:field="mainTabPanel" tabPosition="top">
			<b:Tab ui:field="mapTabPanel" active="true" heading="Map">
				<b:DropdownButton type="LINK" text="Query">
					<!-- <b:ButtonGroup toggle="checkbox" ui:field="buttonGroup"> -->
					<b:NavLink ui:field="dataPointSelection"
						addStyleNames="{style.margin-right-10}">Data Point
						Selection</b:NavLink>
					<b:NavLink ui:field="dataBoxSelection">Data Box
						Selection</b:NavLink>
					<!-- </b:ButtonGroup> -->
				</b:DropdownButton>
				<b:Button type="LINK" ui:field="removeQuery" text="Remove Query" visible="false"></b:Button>
			</b:Tab>
		</b:TabPanel>
	</g:HTMLPanel>
</ui:UiBinder>