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34 lines
824 B
C++
34 lines
824 B
C++
#pragma once
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#include "animation_system.hpp"
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#include "drape/pointers.hpp"
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#include <chrono>
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#include <deque>
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namespace df
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{
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class KineticScroller
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{
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public:
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void Init(ScreenBase const & modelView);
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void Update(ScreenBase const & modelView);
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bool IsActive() const;
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void Cancel();
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drape_ptr<Animation> CreateKineticAnimation(ScreenBase const & modelView);
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private:
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std::pair<m2::PointD, double> GetDirectionAndVelocity(ScreenBase const & modelView) const;
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using ClockT = std::chrono::steady_clock;
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static double GetDurationSeconds(ClockT::time_point const & t2, ClockT::time_point const & t1)
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{
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return std::chrono::duration_cast<std::chrono::duration<double>>(t2 - t1).count();
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}
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std::deque<std::pair<m2::PointD, ClockT::time_point>> m_points;
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bool m_isActive = false;
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};
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} // namespace df
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