Java tutorial
/** * Copyright 2008-2015 Qualogy Solutions B.V. * * 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.qualogy.qafe.gwt.client.ui.renderer; import com.google.gwt.user.client.Command; import com.google.gwt.user.client.ui.MenuBar; import com.google.gwt.user.client.ui.MenuItem; import com.google.gwt.user.client.ui.UIObject; import com.qualogy.qafe.gwt.client.context.ClientApplicationContext; import com.qualogy.qafe.gwt.client.vo.ui.ComponentGVO; import com.qualogy.qafe.gwt.client.vo.ui.MenuItemGVO; public class MenuItemRenderer extends AbstractComponentRenderer { public UIObject render(ComponentGVO component, String uuid, String parent, String context) { UIObject uiObject = null; if (component != null) { if (component instanceof MenuItemGVO) { MenuItemGVO menuItemGVO = (MenuItemGVO) component; // if (menuItemGVO.getIsTopLevelMenu() != null // && menuItemGVO.getIsTopLevelMenu().booleanValue()) { // Command cmd = new Command() { public void execute() { ClientApplicationContext.getInstance().log("Default MenuItem command", "You selected a menu item!", true); } }; MenuItemGVO[] subMenus = menuItemGVO.getSubMenus(); if (subMenus != null) { uiObject = new MenuBar(); MenuBar menuBar = (MenuBar) uiObject; for (int i = 0; i < subMenus.length; i++) { UIObject renderedObject = render(subMenus[i], uuid, parent, context); if (renderedObject instanceof MenuBar) { menuBar.addItem(menuItemGVO.getDisplayname(), (MenuBar) renderedObject); } else if (renderedObject instanceof MenuItem) { menuBar.addItem((MenuItem) renderedObject); } } } else { uiObject = new MenuItem(menuItemGVO.getDisplayname(), cmd); } // } else { // Command cmd = new Command() { // public void execute() { // ClientApplicationContext.getInstance().log("Default menu item command","You selected a menu item!",true); // } // }; // MenuItemGVO[] subMenus = menuItemGVO.getSubMenus(); // if (subMenus != null) { // uiObject = new MenuBar(true); // MenuBar menuBar = (MenuBar) uiObject; // for (int i = 0; i < subMenus.length; i++) { // UIObject renderedObject = render(subMenus[i],uuid,parent); // if (renderedObject instanceof MenuBar) { // menuBar.addItem(menuItemGVO.getDisplayname(), // (MenuBar) renderedObject); // } else if (renderedObject instanceof MenuItem) { // menuBar.addItem((MenuItem) renderedObject); // } // } // } else { // uiObject = new MenuItem(menuItemGVO.getDisplayname(), cmd); // } // } } } return uiObject; } }