Merge branch 'pr2532'

src/widget/form/settings/avform.cpp

@@ -69,6 +69,9 @@ AVForm::AVForm() :
     bodyUI->playbackSlider->setValue(Settings::getInstance().getOutVolume());
     bodyUI->microphoneSlider->setValue(Settings::getInstance().getInVolume());
 
+    bodyUI->playbackSlider->installEventFilter(this);
+    bodyUI->microphoneSlider->installEventFilter(this);
+
     for (QComboBox* cb : findChildren<QComboBox*>())
     {
         cb->installEventFilter(this);
@@ -361,7 +364,7 @@ void AVForm::onMicrophoneValueChanged(int value)
 bool AVForm::eventFilter(QObject *o, QEvent *e)
 {
     if ((e->type() == QEvent::Wheel) &&
-         (qobject_cast<QComboBox*>(o) || qobject_cast<QAbstractSpinBox*>(o) ))
+         (qobject_cast<QComboBox*>(o) || qobject_cast<QAbstractSpinBox*>(o) || qobject_cast<QSlider*>(o)))
     {
         e->ignore();
         return true;