Remove features.rubberband dependency of features.splitter

Change-Id: Ia55850f37f9384c8e00cef699fa308a02af64fd5
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

src/widgets/configure.json

@@ -160,7 +160,6 @@
             "label": "QSplitter",
             "purpose": "Provides user controlled splitter widgets.",
             "section": "Widgets",
-            "condition": "features.rubberband",
             "output": [ "publicFeature", "feature" ]
         },
         "widgettextcontrol": {

src/widgets/widgets/qsplitter.cpp

@@ -975,7 +975,9 @@ QSplitter::QSplitter(Qt::Orientation orientation, QWidget *parent)
 QSplitter::~QSplitter()
 {
     Q_D(QSplitter);
+#if QT_CONFIG(rubberband)
     delete d->rubberBand;
+#endif
     while (!d->list.isEmpty())
         delete d->list.takeFirst();
 }
@@ -1325,6 +1327,7 @@ void QSplitter::childEvent(QChildEvent *c)
 
 void QSplitter::setRubberBand(int pos)
 {
+#if QT_CONFIG(rubberband)
     Q_D(QSplitter);
     if (pos < 0) {
         if (d->rubberBand)
@@ -1345,6 +1348,9 @@ void QSplitter::setRubberBand(int pos)
                                                       : QRect(QPoint(r.x(), pos + hw / 2 - rBord), QSize(r.width(), 2 * rBord));
     d->rubberBand->setGeometry(newGeom);
     d->rubberBand->show();
+#else
+    Q_UNUSED(pos);
+#endif
 }
 
 /*!

src/widgets/widgets/qsplitter_p.h

@@ -81,11 +81,17 @@ class QSplitterPrivate : public QFramePrivate
 {
     Q_DECLARE_PUBLIC(QSplitter)
 public:
-    QSplitterPrivate() : rubberBand(0), opaque(true), firstShow(true),
+    QSplitterPrivate() :
+#if QT_CONFIG(rubberband)
+                         rubberBand(0),
+#endif
+                         opaque(true), firstShow(true),
                          childrenCollapsible(true), compatMode(false), handleWidth(-1), blockChildAdd(false), opaqueResizeSet(false) {}
     ~QSplitterPrivate();
 
+#if QT_CONFIG(rubberband)
     QPointer<QRubberBand> rubberBand;
+#endif
     mutable QList<QSplitterLayoutStruct *> list;
     Qt::Orientation orient;
     bool opaque : 8;