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++ // Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #ifndef QT3DINPUT_INPUT_BUTTONAXISINPUT_H
++ #define QT3DINPUT_INPUT_BUTTONAXISINPUT_H
++
++ //
++ // W A R N I N G
++ // -------------
++ //
++ // This file is not part of the Qt API. It exists for the convenience
++ // of other Qt classes. This header file may change from version to
++ // version without notice, or even be removed.
++ //
++ // We mean it.
++ //
++
++ #include <Qt3DInput/private/abstractaxisinput_p.h>
++
++ QT_BEGIN_NAMESPACE
++
++ namespace Qt3DInput {
++
++ namespace Input {
++
++ class Q_AUTOTEST_EXPORT ButtonAxisInput : public AbstractAxisInput
++ {
++ public:
++ enum UpdateType {
++ Accelerate,
++ Decelerate
++ };
++
++ ButtonAxisInput();
++ void cleanup() final;
++
++ inline float scale() const { return m_scale; }
++ inline QList<int> buttons() const { return m_buttons; }
++
++ inline float acceleration() const { return m_acceleration < 0.0f ? qInf() : m_acceleration; }
++ inline float deceleration() const { return m_deceleration < 0.0f ? qInf() : m_deceleration; }
++ inline float speedRatio() const { return m_speedRatio; }
++ inline qint64 lastUpdateTime() const { return m_lastUpdateTime; }
++
++ void syncFromFrontEnd(const Qt3DCore::QNode *frontEnd, bool firstTime) final;
++
++ float process(InputHandler *inputHandler, qint64 currentTime) override;
++
++ private:
++ void updateSpeedRatio(qint64 currentTime, UpdateType type);
++
++ QList<int> m_buttons;
++ float m_scale;
++ float m_acceleration;
++ float m_deceleration;
++ float m_speedRatio;
++ qint64 m_lastUpdateTime;
++ };
++
++ } // namespace Input
++
++ } // namespace Qt3DInput
++
++ QT_END_NAMESPACE
++
++ #endif // QT3DINPUT_INPUT_BUTTONAXISINPUT_H