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diff --git a/src/controls/Private/ContentItem.qml b/src/controls/Private/ContentItem.qml
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+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Controls module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
+**     of its contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.1
+import QtQuick.Layouts 1.1
+
+Item {
+    id: contentItem
+    property real minimumWidth: __calcMinimum('Width')
+    property real minimumHeight: __calcMinimum('Height')
+    property real maximumWidth: __calcMaximum('Width')
+    property real maximumHeight: __calcMaximum('Height')
+    implicitWidth: __calcImplicitWidth()
+    implicitHeight: __calcImplicitHeight()
+
+    /*! \internal */
+    property Item __layoutItem: contentItem.children.length === 1 ? contentItem.children[0] : null
+    /*! \internal */
+    property real __marginsWidth: __layoutItem ? __layoutItem.anchors.leftMargin + __layoutItem.anchors.rightMargin : 0
+    /*! \internal */
+    property real __marginsHeight: __layoutItem ? __layoutItem.anchors.topMargin + __layoutItem.anchors.bottomMargin : 0
+
+    /*! \internal */
+    property bool __noMinimumWidthGiven : false
+    /*! \internal */
+    property bool __noMinimumHeightGiven : false
+    /*! \internal */
+    property bool __noImplicitWidthGiven : false
+    /*! \internal */
+    property bool __noImplicitHeightGiven : false
+
+    function __calcImplicitWidth() {
+        if (__layoutItem && __layoutItem.anchors.fill)
+            return __calcImplicit('Width')
+        return contentItem.childrenRect.x + contentItem.childrenRect.width
+    }
+
+    function __calcImplicitHeight() {
+        if (__layoutItem && __layoutItem.anchors.fill)
+            return __calcImplicit('Height')
+        return contentItem.childrenRect.y + contentItem.childrenRect.height
+    }
+
+    function __calcImplicit(hw) {
+        var pref = __layoutItem.Layout['preferred' + hw]
+        if (pref < 0) {
+            pref = __layoutItem['implicit' + hw]
+        }
+        contentItem['__noImplicit' + hw + 'Given'] = (pref === 0 ? true : false)
+        pref += contentItem['__margins' + hw]
+        return pref
+    }
+
+    function __calcMinimum(hw) {  // hw is 'Width' or 'Height'
+        return (__layoutItem && __layoutItem.anchors.fill) ? __calcMinMax('minimum', hw) : 0
+    }
+
+    function __calcMaximum(hw) {  // hw is 'Width' or 'Height'
+        return (__layoutItem && __layoutItem.anchors.fill) ? __calcMinMax('maximum', hw) : Number.POSITIVE_INFINITY
+    }
+
+    function __calcMinMax(minMaxConstraint, hw) {
+        var attachedPropName = minMaxConstraint + hw
+        var extent = __layoutItem.Layout[attachedPropName]
+
+        if (minMaxConstraint === 'minimum')
+            contentItem['__noMinimum' + hw + 'Given'] = (extent === 0 ? true : false)
+
+        extent += contentItem['__margins' + hw]
+        return extent
+    }
+}