+ // Setup the math signal button
+ add_math_signal_button_->setIcon(QIcon(":/icons/add-math-signal.svg"));
+ add_math_signal_button_->setPopupMode(QToolButton::InstantPopup);
+ add_math_signal_button_->setToolTip(tr("Add math signal"));
+ add_math_signal_button_->setShortcut(QKeySequence(Qt::Key_M));
+
+ connect(add_math_signal_button_, SIGNAL(clicked()),
+ this, SLOT(on_add_math_signal_clicked()));
+
+