private void doControlPanel(){
JPanel panel = new JPanel(new BorderLayout());
viewer = new TreeViewer();
viewer.setPreferredSize(new Dimension(180,450));
properties = new PropertiesViewer();
Mediator.setPropertiesViewer(properties);
JSplitPane treeSplitter = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,viewer,properties);
JPanel logPanel = new LogPanel();
logPanel.setPreferredSize(new Dimension(180,100));