QWidgetRepaintManager: Use textureChildSeen to determine deferred update

We want to get rid of the QWindowPrivate::compositing member, as it is
no longer needed for the Android backingstore, which it was first added
for in a4f50269f82695fbd0dd344f87b4b355feff4333.

We can use textureChildSeen instead to check if we're compositing.

Pick-to: 6.7
Change-Id: If85b21f92c8253bf89543a7e81e03730023f8095
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/widgets/kernel/qwidgetrepaintmanager.cpp b/src/widgets/kernel/qwidgetrepaintmanager.cpp
index e6b57d9872..2feb3f6988 100644
--- a/src/widgets/kernel/qwidgetrepaintmanager.cpp
+++ b/src/widgets/kernel/qwidgetrepaintmanager.cpp
@@ -339,9 +339,9 @@ void QWidgetRepaintManager::sendUpdateRequest(QWidget *widget, UpdateTime update
     // compositing and waiting for vsync each and every time. Change to
     // UpdateLater, except for approx. once per frame to prevent starvation in
     // case the control does not get back to the event loop.
-    QWidget *w = widget->window();
-    if (updateTime == UpdateNow && w && w->windowHandle() && QWindowPrivate::get(w->windowHandle())->compositing) {
+    if (updateTime == UpdateNow && QWidgetPrivate::get(widget)->textureChildSeen) {
         int refresh = 60;
+        QWidget *w = widget->window();
         QScreen *ws = w->windowHandle()->screen();
         if (ws)
             refresh = ws->refreshRate();
@@ -350,7 +350,7 @@ void QWidgetRepaintManager::sendUpdateRequest(QWidget *widget, UpdateTime update
             const qint64 elapsed = wd->lastComposeTime.elapsed();
             if (elapsed <= qint64(1000.0f / refresh))
                 updateTime = UpdateLater;
-       }
+        }
     }
 
     switch (updateTime) {