ColorScheme: remove unused QWindowsApplication::isDarkMode

It unnecessarily duplicates and distributes logic for reporting whether
the application should run in dark or light mode.

Task-number: QTBUG-124490
Change-Id: I227660cf3e1f21afd5fd9b3d6452f6109f3cf799
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Wladimir Leuschner <wladimir.leuschner@qt.io>

4 files changed, 1 insertions, 17 deletions

diff --git a/src/gui/kernel/qguiapplication_p.h b/src/gui/kernel/qguiapplication_p.h
index 58c3f33394..2bfcd87f3f 100644
--- a/src/gui/kernel/qguiapplication_p.h
+++ b/src/gui/kernel/qguiapplication_p.h
@@ -403,8 +403,6 @@ struct Q_GUI_EXPORT QWindowsApplication
     virtual bool isWinTabEnabled() const = 0;
     virtual bool setWinTabEnabled(bool enabled) = 0;
 
-    virtual bool isDarkMode() const = 0;
-
     virtual DarkModeHandling darkModeHandling() const = 0;
     virtual void setDarkModeHandling(DarkModeHandling handling) = 0;
 
diff --git a/src/gui/platform/windows/qwindowsnativeinterface.cpp b/src/gui/platform/windows/qwindowsnativeinterface.cpp
index 7ebddb5b9d..44f230e1d3 100644
--- a/src/gui/platform/windows/qwindowsnativeinterface.cpp
+++ b/src/gui/platform/windows/qwindowsnativeinterface.cpp
@@ -181,15 +181,7 @@ QT_DEFINE_NATIVE_INTERFACE(QWindowsScreen);
     \value DarkModeStyle        The Windows Vista style will be turned off and
                                 a simple dark style will be used.
 
-    \sa isDarkMode(), setDarkModeHandling()
-*/
-
-/*!
-    \fn bool QNativeInterface::Private::QWindowsApplication::isDarkMode() const = 0
-    \internal
-
-    Returns \c true if Windows 10 is configured to use dark mode for
-    applications.
+    \sa setDarkModeHandling()
 */
 
 /*!
diff --git a/src/plugins/platforms/windows/qwindowsapplication.cpp b/src/plugins/platforms/windows/qwindowsapplication.cpp
index a97cdc009c..42e34ac99f 100644
--- a/src/plugins/platforms/windows/qwindowsapplication.cpp
+++ b/src/plugins/platforms/windows/qwindowsapplication.cpp
@@ -72,11 +72,6 @@ bool QWindowsApplication::setWinTabEnabled(bool enabled)
     return enabled ? ctx->initTablet() : ctx->disposeTablet();
 }
 
-bool QWindowsApplication::isDarkMode() const
-{
-    return QWindowsTheme::instance()->colorScheme() == Qt::ColorScheme::Dark;
-}
-
 QWindowsApplication::DarkModeHandling QWindowsApplication::darkModeHandling() const
 {
     return m_darkModeHandling;
diff --git a/src/plugins/platforms/windows/qwindowsapplication.h b/src/plugins/platforms/windows/qwindowsapplication.h
index efacd74e18..0918df91af 100644
--- a/src/plugins/platforms/windows/qwindowsapplication.h
+++ b/src/plugins/platforms/windows/qwindowsapplication.h
@@ -24,7 +24,6 @@ public:
     bool isWinTabEnabled() const override;
     bool setWinTabEnabled(bool enabled) override;
 
-    bool isDarkMode() const override;
     DarkModeHandling darkModeHandling() const override;
     void setDarkModeHandling(DarkModeHandling handling) override;