+void Header::contextMenuEvent(QContextMenuEvent *event)
+{
+ const shared_ptr<Trace> t = get_mouse_over_trace(_mouse_point);
+
+ if (!t)
+ return;
+
+ QMenu menu(this);
+ menu.addAction(_action_set_name);
+ menu.addAction(_action_set_colour);
+
+ _context_trace = t;
+ menu.exec(event->globalPos());
+ _context_trace.reset();
+}
+
+void Header::on_action_set_name_triggered()
+{
+ bool ok = false;
+
+ shared_ptr<view::Trace> context_trace = _context_trace;
+ if (!context_trace)
+ return;
+
+ const QString new_label = QInputDialog::getText(this, tr("Set Name"),
+ tr("Name"), QLineEdit::Normal, context_trace->get_name(), &ok);
+
+ if (ok)
+ context_trace->set_name(new_label);
+}
+
+void Header::on_action_set_colour_triggered()
+{
+ shared_ptr<view::Trace> context_trace = _context_trace;
+ if (!context_trace)
+ return;
+
+ const QColor new_colour = QColorDialog::getColor(
+ context_trace->get_colour(), this, tr("Set Colour"));
+
+ if (new_colour.isValid())
+ context_trace->set_colour(new_colour);
+}
+
+void Header::on_signals_changed()
+{
+ const vector< shared_ptr<Trace> > traces(_view.get_traces());
+ BOOST_FOREACH(shared_ptr<Trace> t, traces) {
+ assert(t);
+ connect(t.get(), SIGNAL(text_changed()), this, SLOT(update()));
+ }
+}
+
+void Header::on_signals_moved()
+{
+ update();
+}
+
+