Fix setting double values in setting spinboxes

resources/qml/pages/UserSettingsPage.qml

@@ -118,7 +118,7 @@ Rectangle {
                             }
                         }
                         DelegateChoice {
-                            roleValue: UserSettingsModel.Number
+                            roleValue: UserSettingsModel.Integer
 
                             SpinBox {
                                 anchors.right: parent.right
@@ -129,6 +129,42 @@ Rectangle {
                                 stepSize: model.valueStep
                                 value: model.value
                                 onValueChanged: model.value = value
+                                editable: true
+                            }
+                        }
+                        DelegateChoice {
+                            roleValue: UserSettingsModel.Double
+
+                            SpinBox {
+                                id: spinbox
+
+                                readonly property double div: 100
+                                readonly property int decimals: 2
+
+                                anchors.right: parent.right
+                                width: Math.min(parent.width, implicitWidth)
+                                enabled: !deadTimer.running && model.enabled
+                                from: model.valueLowerBound * div
+                                to: model.valueUpperBound * div
+                                stepSize: model.valueStep * div
+                                value: model.value * div
+                                onValueChanged: model.value = value/div
+                                editable: true
+
+                                property real realValue: value / div
+
+                                validator: DoubleValidator {
+                                    bottom: Math.min(spinbox.from/spinbox.div, spinbox.to/spinbox.div)
+                                    top:  Math.max(spinbox.from/spinbox.div, spinbox.to/spinbox.div)
+                                }
+
+                                textFromValue: function(value, locale) {
+                                    return Number(value / spinbox.div).toLocaleString(locale, 'f', spinbox.decimals)
+                                }
+
+                                valueFromText: function(text, locale) {
+                                    return Number.fromLocaleString(locale, text) * spinbox.div
+                                }
                             }
                         }
                         DelegateChoice {

src/UserSettingsPage.cpp

@@ -1160,9 +1160,10 @@ UserSettingsModel::data(const QModelIndex &index, int role) const
             return Options;
         case TimelineMaxWidth:
         case PrivacyScreenTimeout:
+            return Integer;
         case FontSize:
         case ScaleFactor:
-            return Number;
+            return Double;
         case MessageHoverHighlight:
         case EnlargeEmojiOnlyMessages:
         case Tray:
@@ -1345,7 +1346,7 @@ UserSettingsModel::setData(const QModelIndex &index, const QVariant &value, int
                 return false;
         }
         case ScaleFactor: {
-            if (value.canConvert<double>()) {
+            if (value.canConvert(QMetaType::Double)) {
                 utils::setScaleFactor(static_cast<float>(value.toDouble()));
                 return true;
             } else
@@ -1415,7 +1416,7 @@ UserSettingsModel::setData(const QModelIndex &index, const QVariant &value, int
                 return false;
         }
         case TimelineMaxWidth: {
-            if (value.userType() == QMetaType::Int) {
+            if (value.canConvert(QMetaType::Int)) {
                 i->setTimelineMaxWidth(value.toInt());
                 return true;
             } else
@@ -1472,7 +1473,7 @@ UserSettingsModel::setData(const QModelIndex &index, const QVariant &value, int
                 return false;
         }
         case PrivacyScreenTimeout: {
-            if (value.userType() == QMetaType::Int) {
+            if (value.canConvert(QMetaType::Int)) {
                 i->setPrivacyScreenTimeout(value.toInt());
                 return true;
             } else
@@ -1486,8 +1487,8 @@ UserSettingsModel::setData(const QModelIndex &index, const QVariant &value, int
                 return false;
         }
         case FontSize: {
-            if (value.userType() == QMetaType::Double) {
-                i->setFontSize(value.toBool());
+            if (value.canConvert(QMetaType::Double)) {
+                i->setFontSize(value.toDouble());
                 return true;
             } else
                 return false;

src/UserSettingsPage.h

@@ -438,7 +438,8 @@ public:
         Toggle,
         ReadOnlyText,
         Options,
-        Number,
+        Integer,
+        Double,
         SectionTitle,
         SectionBar,
         KeyStatus,