widgets: Simplify QWidgetRepaintManager::flush

Change-Id: Icba88fa068aac2ac5d8bb04e46a3e3f34e279a48
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>

2 files changed, 5 insertions, 10 deletions

diff --git a/src/widgets/kernel/qwidgetrepaintmanager.cpp b/src/widgets/kernel/qwidgetrepaintmanager.cpp
index 11647ae05e..6b5ca4b594 100644
--- a/src/widgets/kernel/qwidgetrepaintmanager.cpp
+++ b/src/widgets/kernel/qwidgetrepaintmanager.cpp
@@ -1063,17 +1063,15 @@ void QWidgetRepaintManager::markNeedsFlush(QWidget *widget, const QRegion &regio
 
 /*!
     Flushes the contents of the backing store into the top-level widget.
-    If the \a widget is non-zero, the content is flushed to the \a widget.
 */
-void QWidgetRepaintManager::flush(QWidget *widget)
+void QWidgetRepaintManager::flush()
 {
     const bool hasNeedsFlushWidgets = !needsFlushWidgets.isEmpty();
     bool flushed = false;
 
     // Flush the top level widget
     if (!topLevelNeedsFlush.isEmpty()) {
-        QWidget *target = widget ? widget : tlw;
-        flush(target, topLevelNeedsFlush, widgetTexturesFor(tlw, tlw));
+        flush(tlw, topLevelNeedsFlush, widgetTexturesFor(tlw, tlw));
         topLevelNeedsFlush = QRegion();
         flushed = true;
     }
@@ -1082,11 +1080,8 @@ void QWidgetRepaintManager::flush(QWidget *widget)
     if (!flushed && !hasNeedsFlushWidgets) {
 #ifndef QT_NO_OPENGL
         if (!tlw->d_func()->topData()->widgetTextures.empty()) {
-            QPlatformTextureList *widgetTextures = widgetTexturesFor(tlw, tlw);
-            if (widgetTextures) {
-                QWidget *target = widget ? widget : tlw;
-                flush(target, QRegion(), widgetTextures);
-            }
+            if (QPlatformTextureList *widgetTextures = widgetTexturesFor(tlw, tlw))
+                flush(tlw, QRegion(), widgetTextures);
         }
 #endif
     }
diff --git a/src/widgets/kernel/qwidgetrepaintmanager_p.h b/src/widgets/kernel/qwidgetrepaintmanager_p.h
index e81eee0816..d7e38a9d69 100644
--- a/src/widgets/kernel/qwidgetrepaintmanager_p.h
+++ b/src/widgets/kernel/qwidgetrepaintmanager_p.h
@@ -115,7 +115,7 @@ private:
 
     void markNeedsFlush(QWidget *widget, const QRegion &region = QRegion());
 
-    void flush(QWidget *widget = nullptr);
+    void flush();
     void flush(QWidget *widget, const QRegion &region, QPlatformTextureList *widgetTextures);
 
     bool isDirty() const;