signalComposite.setLayoutData(data);
GridLayout layout = new GridLayout();
layout.marginTop = 0;
layout.numColumns = 1;
signalComposite.setLayout(layout);
signalEditor = new SignalEditor("signalEditor", signalComposite);
signalEditor.getLabelControl(signalComposite).setBackground(Display.getDefault().getSystemColor(SWT.COLOR_WHITE));
CLabel signalLabel = factory.createCLabel(composite, "Signals:"); //$NON-NLS-1$
data = new FormData();
data.left = new FormAttachment(0, 0);