Add SetValueSilently function to ClickableScrollBar.

src/src/UI/Widget/ClickableScrollBar.cpp

@@ -20,3 +20,10 @@ void ClickableScrollBar::mousePressEvent(QMouseEvent * event) {
     emit clicked();
     QScrollBar::mousePressEvent(event);
 }
+
+void ClickableScrollBar::SetValueSilently(int value) {
+    if (this->value() ==value) return;
+    setTracking(false);
+    setValue(value);
+    setTracking(true);
+}

src/src/UI/Widget/ClickableScrollBar.h

@@ -12,6 +12,7 @@ public:
     explicit ClickableScrollBar(QWidget *parent = nullptr);
     explicit ClickableScrollBar(Qt::Orientation, QWidget *parent = nullptr);
     ~ClickableScrollBar() override;
+    void SetValueSilently(int value);
 Q_SIGNALS:
     void clicked();