public void createPartControl(Composite parent) {
GridLayout gridLayout = new GridLayout();
gridLayout.numColumns = 1;
parent.setLayout(gridLayout);
tabFolder = new CTabFolder(parent, SWT.CLOSE);
tabFolder.setBorderVisible(true);
GridData gridData = new GridData();
gridData.grabExcessVerticalSpace = true;
gridData.grabExcessHorizontalSpace = true;
gridData.horizontalAlignment = GridData.FILL;