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++ // Copyright (C) 2016 Research In Motion.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++ #ifndef QQUICKFLICKABLEBEHAVIOR_H
++ #define QQUICKFLICKABLEBEHAVIOR_H
++
++ //
++ // W A R N I N G
++ // -------------
++ //
++ // This file is not part of the Qt API. It exists purely as an
++ // implementation detail. This header file may change from version to
++ // version without notice, or even be removed.
++ //
++ // We mean it.
++ //
++
++ /* ### Platform specific flickable mechanics are defined either here, or in
++ mkspec files. Long-term (QtQuick 3) Flickable needs to allow such
++ mechanic details to be controlled via QML so that platforms can easily
++ load custom behavior at QML compile time.
++ */
++
++ // The maximum number of pixels a flick can overshoot
++ #ifndef QML_FLICK_OVERSHOOT
++ #define QML_FLICK_OVERSHOOT 150
++ #endif
++
++ // The number of samples to use in calculating the velocity of a flick
++ #ifndef QML_FLICK_SAMPLEBUFFER
++ #define QML_FLICK_SAMPLEBUFFER 3
++ #endif
++
++ // The number of samples to discard when calculating the flick velocity.
++ // Touch panels often produce inaccurate results as the finger is lifted.
++ #ifndef QML_FLICK_DISCARDSAMPLES
++ #define QML_FLICK_DISCARDSAMPLES 0
++ #endif
++
++ // How much faster to decelerate when overshooting
++ #ifndef QML_FLICK_OVERSHOOTFRICTION
++ #define QML_FLICK_OVERSHOOTFRICTION 8
++ #endif
++
++ // Multiflick acceleration minimum flick velocity threshold
++ #ifndef QML_FLICK_MULTIFLICK_THRESHOLD
++ #define QML_FLICK_MULTIFLICK_THRESHOLD 1250
++ #endif
++
++ // If the time (ms) between the last move and the release exceeds this, then velocity will be zero.
++ #ifndef QML_FLICK_VELOCITY_DECAY_TIME
++ #define QML_FLICK_VELOCITY_DECAY_TIME 50
++ #endif
++
++ // Multiflick acceleration minimum contentSize/viewSize ratio
++ #ifndef QML_FLICK_MULTIFLICK_RATIO
++ #define QML_FLICK_MULTIFLICK_RATIO 10
++ #endif
++
++ // Multiflick acceleration maximum velocity multiplier
++ #ifndef QML_FLICK_MULTIFLICK_MAXBOOST
++ #define QML_FLICK_MULTIFLICK_MAXBOOST 3.0
++ #endif
++
++ // Really slow flicks can be annoying.
++ const qreal _q_MinimumFlickVelocity = 75.0;
++
++ // If QQuickFlickablePrivate::wheelDeceleration (perhaps overridden via QT_QUICK_FLICKABLE_WHEEL_DECELERATION)
++ // is greater than this, we switch to proportional wheel scrolling: no "acceleration" at all.
++ const qreal _q_MaximumWheelDeceleration = 14999;
++
++ #endif //QQUICKFLICKABLEBEHAVIOR_H