public void Init(ITextEditor editor, NSTextView text, LiveRange range, AnnotationAlignment alignment)
{
m_editor = editor;
m_text = text;
m_range = range;
m_view = this["view"].To<AnnotateView>();
m_alignment = alignment;
m_parent = m_text.window();
NSNotificationCenter.defaultCenter().addObserver_selector_name_object(
this, "parentWillClose:", Externs.NSWindowWillCloseNotification, m_parent);
m_text.superview().setPostsBoundsChangedNotifications(true);
NSNotificationCenter.defaultCenter().addObserver_selector_name_object(
this, "parentBoundsChanged:", Externs.NSViewBoundsDidChangeNotification, m_text.superview());
m_range.Changed += this.DoRangeChanged;
}