1 files changed, 27 insertions, 1 deletions
diff --git a/src/widgets/graphicsview/qgraphicsproxywidget.cpp b/src/widgets/graphicsview/qgraphicsproxywidget.cpp
index 88bed7cf0e..ea9fc0a0d5 100644
--- a/src/widgets/graphicsview/qgraphicsproxywidget.cpp
+++ b/src/widgets/graphicsview/qgraphicsproxywidget.cpp
@@ -187,6 +187,31 @@ Q_WIDGETS_EXPORT extern bool qt_tab_all_widgets();
 /*!
     \internal
 */
+QGraphicsProxyWidgetPrivate::QGraphicsProxyWidgetPrivate()
+    : QGraphicsWidgetPrivate(),
+      dragDropWidget(nullptr),
+      posChangeMode(NoMode),
+      sizeChangeMode(NoMode),
+      visibleChangeMode(NoMode),
+      enabledChangeMode(NoMode),
+      styleChangeMode(NoMode),
+      paletteChangeMode(NoMode),
+      tooltipChangeMode(NoMode),
+      focusFromWidgetToProxy(false),
+      proxyIsGivingFocus(false)
+{
+}
+
+/*!
+    \internal
+*/
+QGraphicsProxyWidgetPrivate::~QGraphicsProxyWidgetPrivate()
+{
+}
+
+/*!
+    \internal
+*/
 void QGraphicsProxyWidgetPrivate::init()
 {
     Q_Q(QGraphicsProxyWidget);
@@ -570,7 +595,8 @@ void QGraphicsProxyWidgetPrivate::setWidget_helper(QWidget *newWidget, bool auto
         resolvePalette(inheritedPaletteResolveMask);
         widget->update();
 
-        foreach (QGraphicsItem *child, q->childItems()) {
+        const auto childItems = q->childItems();
+        for (QGraphicsItem *child : childItems) {
             if (child->d_ptr->isProxyWidget()) {
                 QGraphicsProxyWidget *childProxy = static_cast<QGraphicsProxyWidget *>(child);
                 QWidget * parent = childProxy->widget();