fix: 修复不跟随系统字体问题

qml/AppControls2/StyleText.qml

@@ -11,18 +11,18 @@ Text {
     function updateColor() {
         color = themePalette.paletteColorWithCustomTransparency(paletteRole, Palette.Active, alpha);
     }
-    function updateFontSize() {
-        systemFontSize = themePalette.systemFontSize();
+    function updateFont() {
+        font = themePalette.systemFont();
     }
     Component.onCompleted: {
         updateColor();
-        updateFontSize();
+        updateFont();
         themePalette.styleColorChanged.connect(updateColor);
-        themePalette.systemFontSizeChanged.connect(updateFontSize);
+        themePalette.systemFontChanged.connect(updateFont);
     }
     Component.onDestruction: {
         themePalette.styleColorChanged.disconnect(updateColor);
-        themePalette.systemFontSizeChanged.disconnect(updateFontSize);
+        themePalette.systemFontChanged.disconnect(updateFont);
     }
     onPaletteRoleChanged: {
         updateColor();

src/uiconfig/theme-palette.cpp

@@ -42,6 +42,9 @@ ThemePalette::ThemePalette(QObject *parent) : QObject(parent)
     connect(qGuiApp, &QGuiApplication::paletteChanged, this, [=] {
         Q_EMIT styleColorChanged();
     });
+    connect(qGuiApp, &QGuiApplication::fontChanged, this, [=] {
+        Q_EMIT systemFontChanged();
+    });
 }
 
 QColor ThemePalette::paletteColor(Palette::ColorRole colorRole, Palette::ColorGroup colorGroup) const
@@ -222,3 +225,8 @@ qreal ThemePalette::systemFontSize() const
 {
     return m_fontSize;
 }
+
+QFont ThemePalette::systemFont()
+{
+    return QGuiApplication::font();
+}

src/uiconfig/theme-palette.h

@@ -23,6 +23,7 @@
 
 #include <QObject>
 #include <QPalette>
+#include <QFont>
 #include "settings.h"
 
 namespace UkuiMenu {
@@ -94,9 +95,11 @@ public:
     Q_INVOKABLE QColor separator(Palette::ColorGroup colorGroup = Palette::Active) const;
 
     Q_INVOKABLE qreal systemFontSize() const;
+    Q_INVOKABLE QFont systemFont();
 
 Q_SIGNALS:
     void styleColorChanged();
+    void systemFontChanged();
     void systemFontSizeChanged();
 
 private Q_SLOTS: