fix: allow scrolling by inputs in settings (#6128)

src/widgets/settingspages/GeneralPageView.cpp

@@ -254,7 +254,7 @@ QSpinBox *GeneralPageView::addIntInput(const QString &text, IntSetting &setting,
     auto *label = new QLabel(text + ":");
     this->addToolTip(*label, toolTipText);
 
-    auto *input = new QSpinBox;
+    auto *input = new SpinBox;
     input->setMinimum(min);
     input->setMaximum(max);
 

src/widgets/settingspages/GeneralPageView.hpp

@@ -76,9 +76,29 @@ class ComboBox : public QComboBox
 {
     Q_OBJECT
 
+protected:
     void wheelEvent(QWheelEvent *event) override
     {
-        (void)event;
+        event->ignore();
+    }
+};
+
+class SpinBox : public QSpinBox
+{
+    Q_OBJECT
+
+public:
+    SpinBox(QWidget *parent = nullptr)
+        : QSpinBox(parent)
+    {
+        // QAbstractSpinBox defaults to Qt::WheelFocus
+        this->setFocusPolicy(Qt::StrongFocus);
+    }
+
+protected:
+    void wheelEvent(QWheelEvent *event) override
+    {
+        event->ignore();
     }
 };
 

src/widgets/settingspages/SettingWidget.cpp

@@ -119,7 +119,7 @@ SettingWidget *SettingWidget::intInput(const QString &label,
 
     auto *lbl = new QLabel(label + ":");
 
-    auto *input = new QSpinBox;
+    auto *input = new SpinBox;
     if (params.min.has_value())
     {
         input->setMinimum(params.min.value());