////////////////////////////////////////////////////////////////////////////
public AlignmentActionsHelper(SelectionEditPolicy policy) {
m_policy = policy;
m_editPart = policy.getHost();
m_viewer = m_editPart.getViewer();
m_policy.addSelectionPolicyListener(new ISelectionEditPolicyListener() {
public void showSelection(SelectionEditPolicy policy) {
if (m_editPart.getSelected() == EditPart.SELECTED_PRIMARY) {
showAlignmentFigures();
}
}