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diff --git a/tradeshow/knx-demo/3d-Alexa-knx-demo/demodatapoint.h b/tradeshow/knx-demo/3d-Alexa-knx-demo/demodatapoint.h
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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt 3D Studio Demos.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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.
+**
+** BSD License Usage
+** Alternatively, 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 The Qt Company Ltd 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef DEMODATAPOINT_H
+#define DEMODATAPOINT_H
+
+#include <QtCore/QTimer>
+#include <QtGui/QColor>
+#include <QtKnx/QKnxTunnelFrame>
+
+class DemoDataPoint
+{
+public:
+    virtual ~DemoDataPoint() = default;
+
+    virtual QByteArray bytes() const { return QByteArray(); }
+    virtual bool updateDataPointState(const QKnxTunnelFrame &frame) = 0;
+
+    int position() const { return m_position; }
+    void setPosition(int pos) { m_position = pos; }
+
+protected:
+    int m_position { 0 };
+
+    static const QByteArray BytesOn;
+    static const QByteArray BytesOff;
+};
+
+class DemoSwitchDataPoint : public DemoDataPoint
+{
+public:
+    DemoSwitchDataPoint() = default;
+    ~DemoSwitchDataPoint() override = default;
+
+    QByteArray bytes() const override;
+    bool updateDataPointState(const QKnxTunnelFrame &frame) override;
+
+    void uiToggle();
+    bool isOn() const;
+
+private:
+    bool m_state;
+};
+
+class DemoColorLed : public QObject, public DemoDataPoint
+{
+    Q_OBJECT
+
+public:
+    DemoColorLed() = default;
+    ~DemoColorLed() override = default;
+
+    bool updateDataPointState(const QKnxTunnelFrame &frame) override;
+
+    QColor currentColor() const;
+    void setCurrentColor(QColor color);
+
+    QByteArray redBytes() const;
+    QByteArray greenBytes() const;
+    QByteArray blueBytes() const;
+
+    bool isOn() const;
+
+Q_SIGNALS:
+    void colorChange(QColor color);
+
+private:
+    QColor m_stateColor;
+    quint8 numMsgConfirmation { 0 };
+};
+
+class DemoRockerDataPoint : public QObject, public DemoDataPoint
+{
+    Q_OBJECT
+public:
+    DemoRockerDataPoint() = default;
+    virtual ~DemoRockerDataPoint() override = default;
+
+    bool updateDataPointState(const QKnxTunnelFrame &frame) override;
+
+Q_SIGNALS:
+    void rockerChange(int position);
+};
+
+class DemoBlindDataPoint : public QObject, public DemoDataPoint
+{
+    Q_OBJECT
+public:
+    DemoBlindDataPoint() = default;
+    ~DemoBlindDataPoint() override = default;
+
+    bool updateDataPointState(const QKnxTunnelFrame &frame) override;
+
+    QByteArray moveUpBytes() const;
+    QByteArray moveDownBytes() const;
+    QByteArray stopBytes() const;
+
+public slots:
+    void moveBlindUp();
+    void moveBlindDown();
+    void stopBlind();
+
+Q_SIGNALS:
+    void blindChange(int position);
+    void blindFullyUp();
+    void blindFullyDown();
+
+private:
+    void chooseTimeoutHandle(bool blindUp);
+    void reenableTimer();
+    QTimer m_timer;
+};
+
+#endif // DEMODATAPOINT_H