toolSupport = new ModelerToolSupport(this);
StandardToolSupportSetup.setupToolSupport(toolSupport, true);
clipboardSupport = new ClipboardSupport(workspaceView, getPluginResourceCollection(), false);
undoMgr = new UndoMgr();
getContentPane().removeAll();
scrollPane = new JScrollPane(workspaceView);
scrollPane.getViewport().addChangeListener(new ChangeListener()