private void saveColumnsData() {
    TableColumnModel colModel = fieldsListTable.getColumnModel();

    for (int i = 0; i < fieldsListTableModel.getColumnCount(); i++) {
      int index = fieldsListTableModel.getRealColumn(i);

      if (index != 0) {
        columnWidths[index - 1] = colModel.getColumn(i).getPreferredWidth();
      }
    }
  }
  private void setColumnsData() {
    TableColumnModel colModel = fieldsListTable.getColumnModel();

    fieldsListTable.setTreeCellRenderer(treeCellRenderer);

    for (int i = 0; i < fieldsListTableModel.getColumnCount(); i++) {
      int index = fieldsListTableModel.getRealColumn(i);

      if (index != 0) {
        colModel.getColumn(i).setPreferredWidth(columnWidths[index - 1]);
        colModel.getColumn(i).setCellRenderer(columnRenderers[index]);
      }
    }
  }
  protected void initColumnSelectorItems() {
    cornerPopup.removeAll();

    JCheckBoxMenuItem menuItem;

    for (int i = 0; i < realFieldsListTableModel.getColumnCount(); i++) {
      menuItem = new JCheckBoxMenuItem(realFieldsListTableModel.getColumnName(i));
      menuItem.setActionCommand(Integer.valueOf(i).toString());
      addMenuItemListener(menuItem);

      if (fieldsListTable != null) {
        menuItem.setState(fieldsListTableModel.isRealColumnVisible(i));

        if (i == 0) {
          menuItem.setEnabled(false);
        }
      } else {
        menuItem.setState(true);
      }

      cornerPopup.add(menuItem);
    }

    cornerPopup.pack();
  }
  // --- Public interface ------------------------------------------------------
  public void update() {
    if (isShowing()) {
      initData();

      if (contents != null) { // ui already initialized

        if ((fieldsListTableModel.getRoot() == null)
            || (fieldsListTableModel.getRoot()
                == ReferencesBrowserController.EMPTY_INSTANCE_NODE)) {
          contents.show(getContentPanel(), NO_DATA);
        } else {
          contents.show(getContentPanel(), DATA);
        }

        fieldsListTable
            .resetTreeCellOffsetX(); // Ideally should be invoked directly on the component when
        // root node changes
      }

      needsUpdate = false;
    } else {
      needsUpdate = true;
    }
  }
 // --- Private implementation ------------------------------------------------
 private void initData() {
   fieldsListTableModel.setRoot(
       referencesBrowserController.getFilteredSortedReferences(
           filterValue, sortingColumn, sortingOrder));
   refreshView();
 }
  private void initComponents() {
    treeCellRenderer.setLeafIcon(null);
    treeCellRenderer.setClosedIcon(null);
    treeCellRenderer.setOpenIcon(null);

    fieldsListTableModel.setRealColumnVisibility(2, false);
    fieldsListTableModel.setRealColumnVisibility(4, false);

    if (retainedSizeSupported)
      fieldsListTableModel.setRealColumnVisibility(
          5,
          referencesBrowserController
                  .getReferencesControllerHandler()
                  .getHeapFragmentWalker()
                  .getRetainedSizesStatus()
              == HeapFragmentWalker.RETAINED_SIZES_COMPUTED);

    fieldsListTable =
        new JTreeTable(fieldsListTableModel) {
          public void doLayout() {
            int columnsWidthsSum = 0;
            int realFirstColumn = -1;

            TableColumnModel colModel = getColumnModel();

            for (int i = 0; i < fieldsListTableModel.getColumnCount(); i++) {
              if (fieldsListTableModel.getRealColumn(i) == 0) {
                realFirstColumn = i;
              } else {
                columnsWidthsSum += colModel.getColumn(i).getPreferredWidth();
              }
            }

            if (realFirstColumn != -1) {
              colModel.getColumn(realFirstColumn).setPreferredWidth(getWidth() - columnsWidthsSum);
            }

            super.doLayout();
          }
        };
    fieldsListTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    fieldsListTable.setGridColor(UIConstants.TABLE_VERTICAL_GRID_COLOR);
    fieldsListTable.setSelectionBackground(UIConstants.TABLE_SELECTION_BACKGROUND_COLOR);
    fieldsListTable.setSelectionForeground(UIConstants.TABLE_SELECTION_FOREGROUND_COLOR);
    fieldsListTable.setShowHorizontalLines(UIConstants.SHOW_TABLE_HORIZONTAL_GRID);
    fieldsListTable.setShowVerticalLines(UIConstants.SHOW_TABLE_VERTICAL_GRID);
    fieldsListTable.setRowMargin(UIConstants.TABLE_ROW_MARGIN);
    fieldsListTable.setRowHeight(UIUtils.getDefaultRowHeight() + 2);
    fieldsListTable.getTree().setLargeModel(true);
    fieldsListTable.getTree().setToggleClickCount(0);
    fieldsListTable.getColumnModel().getColumn(0).setMinWidth(150);
    fieldsListTable
        .getInputMap(JTable.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT)
        .put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), "DEFAULT_ACTION"); // NOI18N
    fieldsListTable
        .getActionMap()
        .put(
            "DEFAULT_ACTION", // NOI18N
            new AbstractAction() {
              public void actionPerformed(ActionEvent e) {
                performDefaultAction();
              }
            });

    // Disable traversing table cells using TAB and Shift+TAB
    Set keys =
        new HashSet(
            fieldsListTable.getFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS));
    keys.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0));
    fieldsListTable.setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, keys);

    keys =
        new HashSet(
            fieldsListTable.getFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS));
    keys.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, InputEvent.SHIFT_MASK));
    fieldsListTable.setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, keys);

    setColumnsData();

    tablePopup = createTablePopup();

    cornerPopup = new JPopupMenu();

    JTreeTablePanel tablePanel = new JTreeTablePanel(fieldsListTable);
    tablePanel.setCorner(
        JScrollPane.UPPER_RIGHT_CORNER, createHeaderPopupCornerButton(cornerPopup));

    dataPanel = new JPanel(new BorderLayout());
    dataPanel.add(tablePanel, BorderLayout.CENTER);

    noDataPanel = new JPanel(new BorderLayout());
    noDataPanel.setBorder(BorderFactory.createLoweredBevelBorder());

    HTMLTextArea hintArea = new HTMLTextArea();
    hintArea.setBorder(BorderFactory.createEmptyBorder(10, 8, 8, 8));

    String instancesRes = Icons.getResource(HeapWalkerIcons.INSTANCES);
    String hintText =
        Bundle.ReferencesBrowserControllerUI_NoInstanceSelectedMsg(
            "<img border='0' align='bottom' src='nbresloc:/" + instancesRes + "'>"); // NOI18N

    hintArea.setText(hintText);
    noDataPanel.add(hintArea, BorderLayout.CENTER);

    contents = new CardLayout();
    setLayout(contents);
    add(noDataPanel, NO_DATA);
    add(dataPanel, DATA);

    fieldsListTable.addMouseListener(new FieldsListTableMouseListener());
    fieldsListTable.addKeyListener(new FieldsListTableKeyListener());
  }