update

src/CMakeLists.txt

@@ -61,9 +61,9 @@ qt_add_qml_module(fluentuiplugin
 
 #链接库
 target_link_libraries(fluentuiplugin PUBLIC
-    Qt::Core
-    Qt::Quick
-    Qt::Qml
+    Qt::CorePrivate
+    Qt::QuickPrivate
+    Qt::QmlPrivate
 )
 
 #链接库 win32库 不然mingw会编译错误

src/FluTheme.cpp

@@ -3,6 +3,8 @@
 #include "Def.h"
 #include "FluColors.h"
 #include <QPalette>
+#include <QtGui/qpa/qplatformtheme.h>
+#include <QtGui/private/qguiapplication_p.h>
 #include <QGuiApplication>
 
 FluTheme* FluTheme::m_instance = nullptr;
@@ -30,8 +32,9 @@ FluTheme::FluTheme(QObject *parent)
 bool FluTheme::eventFilter(QObject *obj, QEvent *event)
 {
     Q_UNUSED(obj);
-    if (event->type() == QEvent::ApplicationPaletteChange)
+    if (event->type() == QEvent::ApplicationPaletteChange || event->type() == QEvent::ThemeChange)
     {
+        _systemDark = systemDark();
         Q_EMIT darkChanged();
         event->accept();
         return true;
@@ -41,9 +44,10 @@ bool FluTheme::eventFilter(QObject *obj, QEvent *event)
 
 bool FluTheme::systemDark()
 {
-    QPalette palette = qApp->palette();
-    QColor color = palette.color(QPalette::Window).rgb();
-    return !(color.red() * 0.2126 + color.green() * 0.7152 + color.blue() * 0.0722 > 255 / 2);
+    if (const QPlatformTheme * const theme = QGuiApplicationPrivate::platformTheme()) {
+        return (theme->appearance() == QPlatformTheme::Appearance::Dark);
+    }
+    return false;
 }
 
 bool FluTheme::dark(){
@@ -52,7 +56,7 @@ bool FluTheme::dark(){
     }else if(_darkMode == Fluent_DarkMode::Fluent_DarkModeType::Light){
         return false;
     }else if(_darkMode == Fluent_DarkMode::Fluent_DarkModeType::System){
-        return systemDark();
+        return _systemDark;
     }else{
         return false;
     }

src/FluTheme.h

@@ -47,6 +47,7 @@ public:
     Q_SIGNAL void darkChanged();
 private:
     bool _dark;
+    bool _systemDark;
     bool eventFilter(QObject *obj, QEvent *event);
     bool systemDark();
 };