Java tutorial
/* * Copyright 2013 HPD Software Ltd. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package com.peter.vaadin.components.others.mycomponent.client; import com.google.gwt.user.client.DOM; import com.google.gwt.user.client.Element; import com.google.gwt.user.client.ui.Label; /** * A Trivial widget, to explore compiling WidgetSets * * From https://vaadin.com/wiki/-/wiki/Main/Creating%20a%20simple%20component */ public class MyComponentWidget extends Label { public static final String CLASSNAME = "mycomponent"; public MyComponentWidget() { setText("This is MyComponent"); setStyleName(CLASSNAME); } Element imgElement = null; public void setMyIcon(String url) { if (imgElement == null) { imgElement = DOM.createImg(); getElement().appendChild(imgElement); } DOM.setElementAttribute(imgElement, "src", url); } }