Java tutorial
package at.jku.ce.adaptivetesting.vaadin.ui; /*This file is part of the project "Reisisoft Adaptive Testing", * which is licenced under LGPL v3+. You may find a copy in the source, * or obtain one at http://www.gnu.org/licenses/lgpl-3.0-standalone.html */ import java.util.Calendar; import java.util.GregorianCalendar; import at.jku.ce.adaptivetesting.core.LogHelper; import at.jku.ce.adaptivetesting.html.HtmlLabel; import at.jku.ce.adaptivetesting.vaadin.ui.core.VaadinUI; import com.vaadin.navigator.View; import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent; import com.vaadin.ui.Alignment; import com.vaadin.ui.Button; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.Button.ClickListener; import com.vaadin.ui.Component; import com.vaadin.ui.GridLayout; import com.vaadin.ui.Label; import com.vaadin.ui.VerticalLayout; import com.vaadin.ui.Window.CloseEvent; import com.vaadin.ui.Window.CloseListener; public class MainUI extends VerticalLayout implements View { private static final long serialVersionUID = 4966805861748123750L; public MainUI() { // Make the web-app large setSizeFull(); // Set the layout for the bottom // Create a 3rd party licence button with a click listener final Button licences = new Button("Lizenzen"); licences.addClickListener(new ClickListener() { private static final long serialVersionUID = 32642854872179636L; @Override public void buttonClick(ClickEvent event) { LogHelper.logInfo("Opened LicenceWindow"); LicenceWindow licenceWindow = new LicenceWindow(); licenceWindow.addCloseListener(new CloseListener() { private static final long serialVersionUID = 7874342882437355680L; @Override public void windowClose(CloseEvent e) { event.getButton().setEnabled(true); } }); getUI().addWindow(licenceWindow); // Disable sender event.getButton().setEnabled(false); } }); Label copyright = new HtmlLabel( "<i> Reisisoft & JKU 2014 - " + new GregorianCalendar().get(Calendar.YEAR) + "</i>"); /* Button openLog = new Button("Open Log", (ClickListener) event -> { Navigator navigator = getUI().getNavigator(); assert navigator != null; navigator.navigateTo(Views.Log.toString()); });*/ // Add the flowLayout at position 1 (second element) -> centered // Add everthing to flowlayout GridLayout southLayout = new GridLayout(3, 1); southLayout.setWidth("100%"); southLayout.addComponent(licences, 0, 0); // southLayout.addComponent(openLog, 1, 0); southLayout.addComponent(copyright, 2, 0); // Add southlayout to the main Layout addComponent(southLayout); setComponentAlignment(southLayout, Alignment.BOTTOM_CENTER); } @Override public void addComponent(Component c) { int size = getComponentCount(); if (size == 0) { super.addComponent(c); } else { addComponent(c, size - 1); } } @Override public void enter(ViewChangeEvent event) { VaadinUI.setCurrentPageTitle(event); } }