add signal

GUI/View/FitControl/RunFitControlWidget.cpp

@@ -88,8 +88,9 @@ RunFitControlWidget::RunFitControlWidget(QWidget* parent)
     layout->addWidget(m_iterationsCountLabel);
     setLayout(layout);
 
-    connect(m_startButton, &QPushButton::clicked, [&]() { startFittingPushed(); });
-    connect(m_stopButton, &QPushButton::clicked, this, [&]() { stopFittingPushed(); });
+    connect(m_startButton, &QPushButton::clicked, [&]() { emit startFittingPushed(); });
+    connect(m_stopButton, &QPushButton::clicked, this, [&]() { emit stopFittingPushed(); });
+    connect(m_updButton, &QPushButton::clicked, this, [&]() { emit updFromTreePushed(); });
     connect(m_intervalSlider, &QSlider::valueChanged, this,
             &RunFitControlWidget::onSliderValueChanged);
 

GUI/View/FitControl/RunFitControlWidget.h

@@ -37,6 +37,7 @@ public:
 signals:
     void startFittingPushed();
     void stopFittingPushed();
+    void updFromTreePushed();
 
 public slots:
     void onFittingError(const QString& what);