40 lines
920 B
C++
40 lines
920 B
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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#pragma once
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namespace Statistic {
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struct Limits final {
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float64 min = 0;
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float64 max = 0;
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};
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enum class ChartViewType {
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Linear,
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Stack,
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DoubleLinear,
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StackLinear,
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};
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[[nodiscard]] inline Limits FindNearestElements(
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const std::vector<float64> &vector,
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const Limits &limit) {
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const auto find = [&](float64 raw) -> float64 {
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const auto it = ranges::lower_bound(vector, raw);
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const auto left = raw - (*(it - 1));
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const auto right = (*it) - raw;
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const auto nearestXPercentageIt = ((right) > (left)) ? (it - 1) : it;
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return std::distance(
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begin(vector),
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nearestXPercentageIt);
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};
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return { find(limit.min), find(limit.max) };
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}
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} // namespace Statistic
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