JPanel () { myBigPanel = new SimpleToolWindowPanel(true); myBigPanel.setBackground(UIUtil.getFieldForegroundColor()); final JPanel panel = new JPanel(new BorderLayout()); myBigPanel.add(panel, BorderLayout.CENTER); myTreeTablePanel = new JPanel(new BorderLayout()); rebuildTreePanel(); panel.add(myTreeTablePanel); myBigPanel.setPreferredSize(new Dimension(200, myBigPanel.getHeight())); myBigPanel.setToolbar(createToolbar().getComponent()); myBigPanel.revalidate(); return myBigPanel; }