Java tutorial
/** * Copyright 2017 Institute of Computing Technology, Chinese Academy of Sciences. * Licensed under the terms of the Apache 2.0 license. * Please see LICENSE file in the project root for terms */ package eml.studio.client.ui.tree; import eml.studio.client.i18n.Globalization; import com.google.gwt.user.client.ui.TreeItem; import java.util.HashMap; import java.util.Map; import java.util.logging.Logger; /** * Tree Menu for modules like program and data */ public class CopyOfModuleTree extends BaseTree { protected static Logger logger = Logger.getLogger(ProgramModuleTree.class.getName()); /** Tree for System modules */ protected TreeItem sysTree = null; /** Tree for Private modules */ protected TreeItem myTree = null; /** Tree for shared modules */ protected TreeItem sharedTree = null; /** Map categories to TreeItems */ protected Map<String, TreeItem> sysTreeMap = new HashMap<String, TreeItem>(); /** * Initialize the top-level tree items * * @param sysText text for sysTree * @param sharedText text for sharedTree * @param myText text for myTree */ public CopyOfModuleTree(String sysText, String myText, String sharedText) { sysTree = this.addTextItem(sysText); sharedTree = this.addTextItem(sharedText); myTree = this.addTextItem(myText); sysTree.setState(true); } /** * Find the TreeItem for a category. If it not exists, create it. * TODO: reconstruct * @param category category of a moduleId * @return TreeItem of the moduleId corresponding to the category */ public TreeItem findTreeItem(String category) { // default return the system Tree if (category.equals("")) return getSysTree(); TreeItem treeItem = sysTreeMap.get(category); if (treeItem == null) { // Category doesn't exist, create new TreeItems int splitIdx = category.lastIndexOf('>'); String parentCategory = category.substring(0, splitIdx); String cateName = category.substring(splitIdx + 1, category.length()); TreeItem parentItem = findTreeItem(parentCategory); // treeItem = parentItem.addTextItem(cateName); treeItem = parentItem.addTextItem(Globalization.getI18NString(cateName)); treeItem.setState(true); sysTreeMap.put(category, treeItem); } return treeItem; } /** Return the tree for system modules */ public TreeItem getSysTree() { return sysTree; } /** Return the tree for private modules */ public TreeItem getMyTree() { return myTree; } /** Return the tree for shared modules */ public TreeItem getSharedTree() { return sharedTree; } }