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/*
* Copyright (C) 2011-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#pragma once
#include "utils/Geometry.h"
#include "utils/Vector.h"
#include <deque>
class CApplication;
class CAction;
class CInertialScrollingHandler
{
friend class CApplication;
public:
CInertialScrollingHandler();
bool IsScrolling() { return m_bScrolling; }
private:
bool CheckForInertialScrolling(const CAction* action);
bool ProcessInertialScroll(float frameTime);
/*
* vars for inertial scrolling animation with gestures
*/
// flag indicating that we currently do the inertial scrolling emulation
bool m_bScrolling = false;
// flag indicating an abort of scrolling
bool m_bAborting = false;
CVector m_iFlickVelocity;
struct PanPoint
{
unsigned int time;
CVector velocity;
PanPoint(unsigned int time, CVector velocity) : time(time), velocity(velocity) {}
unsigned int TimeElapsed() const;
};
std::deque<PanPoint> m_panPoints;
CPoint m_iLastGesturePoint;
CVector m_inertialDeacceleration;
unsigned int m_inertialStartTime = 0;
float m_timeToZero = 0.0f;
};
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