afb81b8278
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40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "ui/effects/shake_animation.h"
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#include "styles/style_basic.h"
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namespace Ui {
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Fn<void(float64)> DefaultShakeCallback(Fn<void(int)> applyShift) {
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constexpr auto kShiftProgress = 6;
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constexpr auto kSegmentsCount = 5;
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return [=, applyShift = std::move(applyShift)](float64 value) {
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const auto fullProgress = value * kShiftProgress;
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const auto segment = std::clamp(
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int(std::floor(fullProgress)),
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0,
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kSegmentsCount);
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const auto part = fullProgress - segment;
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const auto from = (segment == 0)
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? 0.
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: (segment == 1 || segment == 3 || segment == 5)
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? 1.
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: -1.;
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const auto to = (segment == 0 || segment == 2 || segment == 4)
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? 1.
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: (segment == 1 || segment == 3)
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? -1.
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: 0.;
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const auto shift = from * (1. - part) + to * part;
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applyShift(int(base::SafeRound(shift * st::shakeShift)));
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};
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}
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} // namespace Ui
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