/**     * Sets the node's data attribute.     * @param String data.     */    public void setData(String data) {      Data = data;    }    /**     * Sets the node's title attribute.     * @param String value.     */    public void setValue(String value) {      Value = value;    }    /**     * Sets the node's onpick attribute.     * @param String onpick.     */    public void setOnpick(String onpick) {      Onpick = onpick;    }    /**     * Sets the node's extra attribute.     * @param String extra.     */    public void setExtra(String extra) {      Extra = extra;    }  }  /**   * Collates all the dialog data into a string of WML text.   * @return String text.   */  public String getData() {    DefaultMutableTreeNode root = (DefaultMutableTreeNode) tm.getRoot();    Enumeration enum = root.preorderEnumeration();    String s = "";    int tabCount = 0;    Vector stack = new Vector();    while (enum.hasMoreElements()) {      DefaultMutableTreeNode tn = (DefaultMutableTreeNode) enum.nextElement();      if (tn.getAllowsChildren()) {        try {          optgroupNode optgrpNode = (optgroupNode) tn;          TreeNode[] t = optgrpNode.getPath();          int tabCounter = t.length - 2;          if (tabCount > tabCounter) {            s =  s + (String) stack.get(stack.size() - 1);            stack.remove(stack.size() - 1);          }          if (tabCount < tabCounter) {            tabCount = tabCounter;          }          String title = optgrpNode.getTitle();          String extra = optgrpNode.getExtra();          s = s + "<optgroup";          if (!title.equals(""))            s = s + " title=\"" + title + "\"";          if (!extra.equals(""))            s = s  + " " + extra;          s = s.trim() + ">";          stack.add(new String("</optgroup>"));        }        catch (ClassCastException classerr) {}      }      else {        optionNode optNode = (optionNode) tn;        TreeNode[] t = optNode.getPath();        int tabCounter = t.length - 2;        if (tabCount > tabCounter) {          try {            s = s + (String) stack.get(stack.size() - 1);            stack.remove(stack.size() - 1);          }          catch (ArrayIndexOutOfBoundsException arrerr) {}        }        if (tabCount < tabCounter) {          tabCount = tabCounter;        }        String data = optNode.getData();        String title = optNode.getTitle();        String value = optNode.getValue();        String onpick = optNode.getOnpick();        String extra = optNode.getExtra();        if (data.equals("")) {          s = s + "<option";          if (!title.equals(""))            s = s + " title=\"" + title + "\"";          if (!value.equals(""))            s = s + " value=\"" + value + "\"";          if (!onpick.equals(""))            s = s + " onpick=\"" + onpick + "\"";          if (!extra.equals(""))            s = s + " " + extra;          s = s.trim() + "/>";        }        else {          s = s + "<option";          if (!title.equals(""))            s = s + " title=\"" + title + "\"";          if (!value.equals(""))            s = s + " value=\"" + value + "\"";          if (!onpick.equals(""))            s = s + " onpick=\"" + onpick + "\"";          if (!extra.equals(""))            s = s + " " + extra.trim();          s = s.trim() + ">" + data + "</option>";        }      }    }    while (stack.size() > 0) {      s =  s + (String) stack.get(stack.size() - 1);      stack.remove(stack.size() - 1);    }    return s;  }  /**   * Adds an optgroup node to the tree.   */  public void addOptGroup() {    try{      int cnt = path.getPathCount();      DefaultMutableTreeNode child = (DefaultMutableTreeNode) path.getPathComponent(cnt -1);      DefaultMutableTreeNode parent = (DefaultMutableTreeNode) child.getParent();      optgroupNode n = new optgroupNode("New Group");      tm.insertNodeInto(n, parent, parent.getChildCount());      OptionTree.setSelectionPath(new TreePath(n.getPath()));      updateSample();    }    catch (NullPointerException nullerr) {      try{        DefaultMutableTreeNode parent = (DefaultMutableTreeNode) tm.getRoot();        optgroupNode n = new optgroupNode("New Group");        tm.insertNodeInto(n, parent, parent.getChildCount());        OptionTree.setSelectionPath(new TreePath(n.getPath()));        updateSample();      }      catch (NullPointerException mainnullerr) {}    }  }  /**   * Adds an option node to the tree.   */  public void addOption() {    try {      int cnt = path.getPathCount();      DefaultMutableTreeNode child = (DefaultMutableTreeNode) path.getPathComponent(cnt -1);      DefaultMutableTreeNode parent = (DefaultMutableTreeNode) child.getParent();      optionNode n = new optionNode("New Option", "", "New Option", "");      tm.insertNodeInto(n, parent, parent.getChildCount());      OptionTree.setSelectionPath(new TreePath(n.getPath()));      updateSample();    }    catch (NullPointerException nullerr) {      try {        DefaultMutableTreeNode parent = (DefaultMutableTreeNode) tm.getRoot();        optionNode n = new optionNode("New Option", "", "New Option", "");        tm.insertNodeInto(n, parent, 0);        OptionTree.setSelectionPath(new TreePath(n.getPath()));        updateSample();      }      catch (NullPointerException mainnullerr) {}    }  }  /**   * Creates the root node and adds the child nodes to the root   * node based on the WML data passed in.   * @param String data - the WML text with the "optgroup" and "option" tags.   */  private DefaultMutableTreeNode Build_Tree(String data) {    Vector stack = new Vector();    StringTokenizer st = new StringTokenizer(data, "<");    DefaultMutableTreeNode root = new DefaultMutableTreeNode("root");    while (st.hasMoreTokens()) {      String token = st.nextToken();      StringTokenizer tokens = new StringTokenizer(token);      if (token.indexOf("/optgroup") > -1) {        // its a close tag        token = "";        // remove the last node in the stack        // if stack is empty after removal add to the root        optgroupNode child = (optgroupNode) stack.get(stack.size() - 1);        stack.remove(stack.size() - 1);        if (stack.size() > 0) {          optgroupNode parent = (optgroupNode) stack.get(stack.size() - 1);          parent.add(child);        }        else          root.add(child);      }      if (token.indexOf("optgroup") > -1) {        //its an optgroup, look for attributes        String title = "";        String extra = "";        if (token.indexOf("title") > - 1) {          int i = token.indexOf("title");          i = token.indexOf("\"", i + 1);          int e = token.indexOf("\"", i + 1);          title = token.substring(i + 1, e);        }        int start = token.indexOf("id=\"");        if (start > -1) {          start = start + 4;          int end = token.indexOf("\"", start);          extra = extra + " " + token.substring(start - 4, end + 1);        }        start = token.indexOf("class=\"");        if (start > -1) {          start = start + 7;          int end = token.indexOf("\"", start);          extra = extra + " " + token.substring(start - 7, end + 1);        }        start = token.indexOf("xml:lang=\"");        if (start > -1) {          start = start + 10;          int end = token.indexOf("\"", start);          extra = extra + " " + token.substring(start - 10, end + 1);        }        optgroupNode node = new optgroupNode(title, extra);        stack.add(node);      }      if (token.indexOf("/option") > - 1) {        token = "";      }      if (token.indexOf("option") > - 1) {        // its an option, look for attributes        String nodeData = "";        String newToken = "";        if (token.indexOf("/>") > - 1) {          newToken = token.substring(0, token.length() - 2);        }        else {          StringTokenizer tmp = new StringTokenizer(token, ">");          newToken = tmp.nextToken();          nodeData = tmp.nextToken();        }        String title = "";        String onpick = "";        String value = "";        String extra = "";        if (newToken.indexOf("title") > - 1) {          int i = newToken.indexOf("title");          i = newToken.indexOf("\"", i + 1);          int e = newToken.indexOf("\"", i + 1);          title = newToken.substring(i + 1, e);        }        if (newToken.indexOf("value") > - 1) {          int i = newToken.indexOf("value");          i = newToken.indexOf("\"", i + 1);          int e = newToken.indexOf("\"", i + 1);          value = newToken.substring(i + 1, e);        }        if (newToken.indexOf("onpick") > - 1) {          int i = newToken.indexOf("onpick");          i = newToken.indexOf("\"", i + 1);          int e = newToken.indexOf("\"", i + 1);          onpick = newToken.substring(i + 1, e);        }        int start = token.indexOf("id=\"");        if (start > -1) {          start = start + 4;          int end = token.indexOf("\"", start);          extra = extra + " " + token.substring(start - 4, end + 1);        }        start = token.indexOf("class=\"");        if (start > -1) {          start = start + 7;          int end = token.indexOf("\"", start);          extra = extra + " " + token.substring(start - 7, end + 1);        }        start = token.indexOf("xml:lang=\"");        if (start > -1) {          start = start + 10;          int end = token.indexOf("\"", start);          extra = extra + " " + token.substring(start - 10, end + 1);        }        // create a new node and add it to the last node in the stack        // if stack is empty add to the root        optionNode child = new optionNode(nodeData, title, value, onpick, extra);        if (stack.size() > 0) {          optgroupNode parent = (optgroupNode) stack.get(stack.size() - 1);          parent.add(child);        }        else          root.add(child);      }    }    return root;  }  /**   * Event handler for the popup menu, perform the appropriate action   * for the menu item selected.   */  private void Popup_actionPerformed(ActionEvent e) {    String s = e.getActionCommand();    if (s.equals("Cut")) {      try {        int cnt = path.getPathCount();        DefaultMutableTreeNode child = (DefaultMutableTreeNode) path.getPathComponent(cnt -1);        DefaultMutableTreeNode parent = (DefaultMutableTreeNode) child.getParent();        TempNode = child;        tm.removeNodeFromParent(child);        try {          DefaultMutableTreeNode before = (DefaultMutableTreeNode) parent.getFirstChild();          OptionTree.setSelectionPath(new TreePath(before.getPath()));        }        catch (NoSuchElementException elemerr) {}        updateSample();      }      catch (NullPointerException nullerr) {}    }    if (s.equals("Copy")) {      try {        int cnt = path.getPathCount();        DefaultMutableTreeNode child = (DefaultMutableTreeNode) path.getPathComponent(cnt -1);        TempNode = child;        updateSample();      }      catch (NullPointerException nullerr) {}    }    if (s.equals("Paste")) {    try {        int cnt = path.getPathCount();        DefaultMutableTreeNode child = (DefaultMutableTreeNode) path.getPathComponent(cnt -1);        DefaultMutableTreeNode parent = (DefaultMutableTreeNode) child.getParent();        int index = parent.getIndex(child);        tm.insertNodeInto(TempNode, parent, index);        OptionTree.setSelectionPath(path);        updateSample();      }      catch (ArrayIndexOutOfBoundsException arrerr) {}      catch (NullPointerException nullerr) {        try {          tm.insertNodeInto(TempNode, (DefaultMutableTreeNode) tm.getRoot(), 0);          OptionTree.setSelectionPath(path);          updateSample();        }        catch (IllegalArgumentException iae) {}        catch (NullPointerException nullerr2) {}      }    }    if (s.equals("Delete")) {      try {        int cnt = path.getPathCount();        DefaultMutableTreeNode child = (DefaultMutableTreeNode) path.getPathComponent(cnt -1);        DefaultMutableTreeNode parent = (DefaultMutableTreeNode) child.getParent();        tm.removeNodeFromParent(child);        try {          DefaultMutableTreeNode before = (DefaultMutableTreeNode) parent.getFirstChild();          OptionTree.setSelectionPath(new TreePath(before.getPath()));        }        catch (NoSuchElementException elemerr) {}        updateSample();      }      catch (NullPointerException nullerr) {}    }    if (s.equals("Properties")) {      NodePropertiesButton.doClick();    }  }}