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diff --git a/src/Authoring/Studio/Palettes/Timeline/ScalableScroller.cpp b/src/Authoring/Studio/Palettes/Timeline/ScalableScroller.cpp
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+++ b/src/Authoring/Studio/Palettes/Timeline/ScalableScroller.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2016 NVIDIA Corporation.
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "stdafx.h"
+
+#include "ScalableScroller.h"
+#include "ScalableScrollerBar.h"
+
+CScalableScroller::CScalableScroller()
+    : CScroller(false)
+    , m_ScalableBar(nullptr)
+    , m_ScalingListener(nullptr)
+{
+    Initialize();
+}
+
+CScalableScroller::~CScalableScroller()
+{
+}
+
+CScrollerBar *CScalableScroller::CreateHorizontalBar()
+{
+    if (m_ScalableBar == nullptr) {
+        m_ScalableBar = new CScalableBar(this);
+        m_ScalableBar->SetOrientation(CScrollerBar::HORIZONTAL);
+        m_ScalableBar->SetScalingListener(m_ScalingListener);
+    }
+    return m_ScalableBar;
+}
+
+void CScalableScroller::SetScalingListener(CScalingListener *inListener)
+{
+    m_ScalingListener = inListener;
+
+    if (m_ScalableBar != nullptr) {
+        m_ScalableBar->SetScalingListener(inListener);
+    }
+}
+
+//====================================================================
+/**
+ * Protected function for seting the display size of the scroller.
+ * Overridden because the scaleable scroller thumb at the bottom of
+ * the timeline was getting messed up.  Yes, it's a hack, but I couldn't
+ * fix it any other way.
+ */
+void CScalableScroller::SetVisibleSize(CPt inSize)
+{
+    m_VisibleSize = inSize;
+
+    // Don't call the base class because it messes things up
+}