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diff --git a/src/curveeditor/keyframeitem.h b/src/curveeditor/keyframeitem.h
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+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Design Tooling
+**
+** 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.
+**
+****************************************************************************/
+
+#pragma once
+
+#include "animationcurve.h"
+#include "curveeditorstyle.h"
+
+#include <QGraphicsObject>
+
+namespace DesignTools {
+
+class HandleItem;
+
+class KeyframeItem : public QGraphicsObject
+{
+    Q_OBJECT
+
+signals:
+    void keyframeChanged();
+
+public:
+    KeyframeItem(QGraphicsItem *parent = nullptr);
+
+    KeyframeItem(const Keyframe &keyframe, QGraphicsItem *parent = nullptr);
+
+    ~KeyframeItem() override;
+
+    enum { Type = UserType + 2 };
+
+    int type() const override;
+
+    QRectF boundingRect() const override;
+
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr) override;
+
+    Keyframe keyframe() const;
+
+    void setComponentTransform(const QTransform &transform);
+
+    void setStyle(const CurveEditorStyle &style);
+
+protected:
+    QVariant itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value) override;
+
+private:
+    void updatePosition();
+
+    void updateHandle(HandleItem *handle, bool emit = true);
+
+private:
+    QTransform m_transform;
+
+    KeyframeItemStyleOption m_style;
+
+    Keyframe m_frame;
+
+    HandleItem *m_left;
+
+    HandleItem *m_right;
+};
+
+} // End namespace DesignTools.