/* * Copyright 2010 Traction Software, Inc. * * 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.tractionsoftware.gwt.demo.groupedlistbox.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.FlowPanel; import com.google.gwt.user.client.ui.Panel; import com.google.gwt.user.client.ui.RootPanel; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.user.client.ui.Widget; import com.tractionsoftware.gwt.user.client.ui.GroupedListBox; public class GroupedListBoxDemo implements EntryPoint { private GroupedListBox groupedListBox1; private GroupedListBox groupedListBox2; @Override public void onModuleLoad() { groupedListBox1 = new GroupedListBox(false); groupedListBox2 = new GroupedListBox(true); RootPanel.get("select1").add(groupedListBox1); RootPanel.get("select2").add(groupedListBox2); addItem("Fruits|Apples"); addItem("Fruits|Bananas"); addItem("Fruits|Oranges"); addItem("Fruits|Pears"); addItem("Vegetables|Tomatoes"); addItem("Vegetables|Carrots"); Panel controls = RootPanel.get("controls"); controls.add(createAddButton("Fruits|Blueberries")); controls.add(createAddButton("Vegetables|Broccoli")); controls.add(createAddButton("Meats|Chicken")); controls.add(createAddButton("Meats|Turkey")); Button remove = new Button("Remove Selected"); remove.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { removeSelected(); } }); controls.add(remove); } private void addItem(String item) { groupedListBox1.addItem(item); groupedListBox2.addItem(item); } private void setValue(String item) { groupedListBox1.setValue(item); groupedListBox2.setValue(item); } private void removeSelected() { int index; index = groupedListBox1.getSelectedIndex(); if (index >= 0) groupedListBox1.removeItem(index); index = groupedListBox2.getSelectedIndex(); if (index >= 0) groupedListBox2.removeItem(index); } /** * @param string * @return */ private Widget createAddButton(String value) { FlowPanel ret = new FlowPanel(); final TextBox box = new TextBox(); ret.add(box); box.setValue(value); Button add = new Button("Add"); add.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { setValue(box.getText()); } }); ret.add(add); return ret; } }