1 files changed, 19 insertions, 7 deletions

diff --git a/src/gui/kernel/qguiapplication_p.h b/src/gui/kernel/qguiapplication_p.h
index 79c1a1c820..c9619daa3d 100644
--- a/src/gui/kernel/qguiapplication_p.h
+++ b/src/gui/kernel/qguiapplication_p.h
@@ -55,6 +55,7 @@
 #include <QtGui/qguiapplication.h>
 
 #include <QtCore/QPointF>
+#include <QtCore/QSharedPointer>
 #include <QtCore/private/qcoreapplication_p.h>
 
 #include <QtCore/private/qthread_p.h>
@@ -66,7 +67,7 @@
 
 QT_BEGIN_NAMESPACE
 
-class QColorProfile;
+class QColorTrcLut;
 class QPlatformIntegration;
 class QPlatformTheme;
 class QPlatformDragQtResponse;
@@ -114,7 +115,7 @@ public:
         if (QCoreApplication::instance())
             return QCoreApplication::instance()->d_func()->threadData->eventDispatcher.load();
         else
-            return 0;
+            return nullptr;
     }
 
     static void processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent *e);
@@ -171,7 +172,11 @@ public:
                                                Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers);
 #endif
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    static bool processNativeEvent(QWindow *window, const QByteArray &eventType, void *message, qintptr *result);
+#else
     static bool processNativeEvent(QWindow *window, const QByteArray &eventType, void *message, long *result);
+#endif
 
     static bool sendQWindowEventToQPlatformWindow(QWindow *window, QEvent *event);
 
@@ -204,7 +209,7 @@ public:
     static void showModalWindow(QWindow *window);
     static void hideModalWindow(QWindow *window);
     static void updateBlockedStatus(QWindow *window);
-    virtual bool isWindowBlocked(QWindow *window, QWindow **blockingWindow = 0) const;
+    virtual bool isWindowBlocked(QWindow *window, QWindow **blockingWindow = nullptr) const;
     virtual bool popupActive() { return false; }
 
     static ulong mousePressTime;
@@ -299,8 +304,8 @@ public:
 
     static QInputDeviceManager *inputDeviceManager();
 
-    const QColorProfile *colorProfileForA8Text();
-    const QColorProfile *colorProfileForA32Text();
+    const QColorTrcLut *colorProfileForA8Text();
+    const QColorTrcLut *colorProfileForA32Text();
 
     // hook reimplemented in QApplication to apply the QStyle function on the QIcon
     virtual QPixmap applyQIconStyleHelper(QIcon::Mode, const QPixmap &basePixmap) const { return basePixmap; }
@@ -311,8 +316,11 @@ public:
 
     static void setApplicationState(Qt::ApplicationState state, bool forcePropagate = false);
 
+    static void resetCachedDevicePixelRatio();
+
 protected:
     virtual void notifyThemeChanged();
+    virtual void sendApplicationPaletteChange(bool toAllWidgets = false, const char *className = nullptr);
     bool tryCloseRemainingWindows(QWindowList processedWindows);
 #if QT_CONFIG(draganddrop)
     virtual void notifyDragStarted(const QDrag *);
@@ -324,12 +332,16 @@ private:
     static QGuiApplicationPrivate *self;
     static QTouchDevice *m_fakeTouchDevice;
     static int m_fakeMouseSourcePointId;
-    QAtomicPointer<QColorProfile> m_a8ColorProfile;
-    QAtomicPointer<QColorProfile> m_a32ColorProfile;
+    QSharedPointer<QColorTrcLut> m_a8ColorProfile;
+    QSharedPointer<QColorTrcLut> m_a32ColorProfile;
 
     bool ownGlobalShareContext;
 
     static QInputDeviceManager *m_inputDeviceManager;
+
+    // Cache the maximum device pixel ratio, to iterate through the screen list
+    // only the first time it's required, or when devices are added or removed.
+    static qreal m_maxDevicePixelRatio;
 };
 
 Q_GUI_EXPORT uint qHash(const QGuiApplicationPrivate::ActiveTouchPointsKey &k);