/* * * outlineMlTree.java * * an extension of outline.class using the Microline * Component Toolkit tree component. * * Copyright 1996 John Wiley & Sons, Inc. All Rights Reserved. Reproduction * or translation of this work beyond that permitted in Section 117 of the 1976 * United States Copyright Act without the express written permission of the * copyright owner is unlawful. Requests for further information should be  * addressed to Permissions Department, John Wiley & Sons, Inc. The  * purchaser may make back-up copies for his/her own use only and not for  * distribution or resale. The Publisher assumes no responsibility for errors,  * omissions, or damages, caused by the use of this  software or from the use * of the information contained herein. * */import mlsoft.mct.*;import java.awt.*;import java.sql.*;class outlineMlTree extends outline implements MlTreeListener {  MlTree tree;  /**   *   * Constructs a new outlineMlTree object.   * @param url a URL to  a valid JDBC data source.   * @param user a username   * @param pwd a password   * @param t an MlTree object   *   */  public outlineMlTree (String url, String user, String pwd, MlTree t) {    super(url, user, pwd);    tree = t;  }  /**   *   * addNode()   *   * This subclasses the addNode() method in outline.class to   * use an MlTree   *   * @param level the level within the tree (starts at 1)   * @param children the number of children   * @param label the text of the item   *   */  void addNode (int level, int children, String label) {    tree.setValue("layoutFrozen", true);    tree.addRow(level, children > 0, label);    tree.setValue("layoutFrozen", false);  }  /**   *    * instantiate the outline object with test data.   *   */  public static void main (String argv[]) {    if (argv.length == 0) {    	System.out.println("You must supply a URL to a JDBC data source.");    	System.out.println("");    	System.out.println("Example:");    	System.out.println("java outlineMlTree jdbc:odbc:DATA_SOURCE_NAME;" +	                   "UID=userid;PWD=password");      System.exit(0);    }    // the user might have passed in a user name or password,    // so try to read those in, as well    //    String user, pwd;    if (argv.length > 1) {      user = argv[1];    } else {      user = "";    }    if (argv.length > 2) {      pwd = argv[2];    } else {      pwd = "";    }    // create a myFrame object that knows how to close itself    //    myFrame f = new myFrame();    f.setLayout(new BorderLayout());    // create an MlTree object and add it to the frame    //    MlTree tree = new MlTree();    tree.setValue("layoutFrozen", false);    f.add("Center", tree);    tree.setValue("layoutFrozen", true);    tree.addRow(0, true,"Root");    tree.addRow(1, true, "Level 1 Parent");    tree.addRow(2, false,"1st Child of Level 1 Parent");    tree.addRow(2, false,"2nd Child of Level 1 Parent");    tree.addRow(2, true, "Level 2 Parent");    tree.addRow(3, false, "Child of Level 2 Parent");    tree.addRow(1, true, "Level 1 Parent");    tree.addRow(2, false, "Child of Level 1 Parent");    tree.setValue("layoutFrozen", false);    // resize and show the frame    //    f.setSize(400, 300);    f.show();           // instantiate the outlineMlTree object and traverse it    //    //outlineMlTree tr = new outlineMlTree(argv[0], user, pwd, tree);    //tr.traverseTree("tree", "tree_id", "parent_id", "name");  }  public void onTreeEvent(MlTreeEvent event) {    if (event.getType() == MlTreeEvent.SELECT_ACTIVATED) {        System.out.println("row " + event.row + " activated");    }  }}