package com.vaadin.tests.layouts; import com.vaadin.tests.components.TestBase; import com.vaadin.ui.AbsoluteLayout; import com.vaadin.ui.Button; import com.vaadin.ui.Label; import com.vaadin.ui.Layout; import com.vaadin.ui.Button.ClickEvent; public class AbsoluteLayoutAddRemove extends TestBase { @Override protected String getDescription() { return "Tests that addComponent() and removeComponent() works"; } @Override protected Integer getTicketNumber() { return 2915; } @Override protected void setup() { Layout main = getLayout(); final Label l = new Label("A Label"); final AbsoluteLayout al = new AbsoluteLayout(); al.setWidth("300px"); al.setHeight("200px"); main.addComponent(al); final Button b = new Button("Add", new Button.ClickListener() { public void buttonClick(ClickEvent event) { if (l.getParent() == null) { al.addComponent(l); event.getButton().setCaption("Remove"); } else { al.removeComponent(l); event.getButton().setCaption("Add"); } } }); main.addComponent(b); } }