protected void updateGui() {
if (control != null && !control.isDisposed()) return;
control = new SashForm(guiControl, SWT.HORIZONTAL);
control.setLayoutData(new GridData(GridData.FILL_BOTH));
createLeftComponent((Composite) control);
elementEditor.createControl((Composite) control);
((SashForm) control).setWeights(new int[] {30, 70});
fireGuiModified();
}
