BOOST_FOREACH(const shared_ptr<Signal> s,
_view.session().get_signals()) {
assert(s);
BOOST_FOREACH(const shared_ptr<Signal> s,
_view.session().get_signals()) {
assert(s);
width(), View::SignalHeight);
s->paint(p, signal_rect, _view.scale(), _view.offset());
width(), View::SignalHeight);
s->paint(p, signal_rect, _view.scale(), _view.offset());