For each cell setting ignore wheel events. Closes #866.

src/gui/advancedsettings.cpp

@@ -391,6 +391,10 @@ void AdvancedSettings::loadAdvancedSettings()
 template <typename T>
 void AdvancedSettings::addRow(int row, const QString &rowText, T* widget)
 {
+    // ignore mouse wheel event
+    static WheelEventEater filter;
+    widget->installEventFilter(&filter);
+
     setItem(row, PROPERTY, new QTableWidgetItem(rowText));
     setCellWidget(row, VALUE, widget);
 

src/gui/advancedsettings.h

@@ -29,6 +29,7 @@
 #ifndef ADVANCEDSETTINGS_H
 #define ADVANCEDSETTINGS_H
 
+#include <QEvent>
 #include <QLabel>
 #include <QSpinBox>
 #include <QCheckBox>
@@ -37,6 +38,22 @@
 #include <QTableWidget>
 
 
+class WheelEventEater: public QObject
+{
+    Q_OBJECT
+
+private:
+    bool eventFilter(QObject *obj, QEvent *event)
+    {
+        switch (event->type()) {
+        case QEvent::Wheel:
+            return true;
+        default:
+            return QObject::eventFilter(obj, event);
+        }
+    }
+};
+
 class AdvancedSettings: public QTableWidget
 {
     Q_OBJECT