private void initColumnsData() {
    columnWidths = new int[columnCount - 1]; // Width of the first column fits to width
    columnNames = new String[columnCount];
    columnToolTips = new String[columnCount];
    columnRenderers = new TableCellRenderer[columnCount];

    columnNames[0] = Bundle.ReferencesBrowserControllerUI_FieldColumnName();
    columnToolTips[0] = Bundle.ReferencesBrowserControllerUI_FieldColumnDescr();

    columnNames[1] = Bundle.ReferencesBrowserControllerUI_TypeColumnName();
    columnToolTips[1] = Bundle.ReferencesBrowserControllerUI_TypeColumnDescr();

    columnNames[2] = Bundle.ReferencesBrowserControllerUI_FullTypeColumnName();
    columnToolTips[2] = Bundle.ReferencesBrowserControllerUI_FullTypeColumnDescr();

    columnNames[3] = Bundle.ReferencesBrowserControllerUI_ValueColumnName();
    columnToolTips[3] = Bundle.ReferencesBrowserControllerUI_ValueColumnDescr();

    columnNames[4] = Bundle.ReferencesBrowserControllerUI_SizeColumnName();
    columnToolTips[4] = Bundle.ReferencesBrowserControllerUI_SizeColumnDescr();

    if (retainedSizeSupported) {
      columnNames[5] = Bundle.ReferencesBrowserControllerUI_RetainedSizeColumnName();
      columnToolTips[5] = Bundle.ReferencesBrowserControllerUI_RetainedSizeColumnDescr();
    }

    int unitWidth =
        getFontMetrics(getFont()).charWidth('W'); // NOI18N // initial width of data columns

    FieldTreeCellRenderer treeCellRenderer = new FieldTreeCellRenderer();
    treeCellRenderer.setLeafIcon(null);
    treeCellRenderer.setClosedIcon(null);
    treeCellRenderer.setOpenIcon(null);

    LabelTableCellRenderer dataCellRendererL = new LabelTableCellRenderer(JLabel.LEADING);
    LabelTableCellRenderer dataCellRendererT = new LabelTableCellRenderer(JLabel.TRAILING);

    // method / class / package name
    columnRenderers[0] = null;

    columnWidths[1 - 1] = unitWidth * 18;
    columnRenderers[1] = dataCellRendererL;

    columnWidths[2 - 1] = unitWidth * 28;
    columnRenderers[2] = dataCellRendererL;

    columnWidths[3 - 1] = unitWidth * 14;
    columnRenderers[3] = dataCellRendererT;

    columnWidths[4 - 1] = unitWidth * 7;
    columnRenderers[4] = dataCellRendererT;

    if (retainedSizeSupported) {
      columnWidths[5 - 1] = unitWidth * 7;
      columnRenderers[5] = dataCellRendererT;
    }
  }
  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());
  }