34 lines
1017 B
C++
34 lines
1017 B
C++
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/*
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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 "statistics/view/stack_chart_common.h"
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#include "data/data_statistics.h"
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#include "statistics/statistics_common.h"
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namespace Statistic {
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LeftStartAndStep ComputeLeftStartAndStep(
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const Data::StatisticalChart &chartData,
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const Limits &xPercentageLimits,
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const QRect &rect,
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float64 xIndexStart) {
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const auto fullWidth = rect.width()
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/ (xPercentageLimits.max - xPercentageLimits.min);
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const auto offset = fullWidth * xPercentageLimits.min;
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const auto p = (chartData.xPercentage.size() < 2)
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? 1.
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: chartData.xPercentage[1] * fullWidth;
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const auto w = chartData.xPercentage[1] * (fullWidth - p);
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const auto leftStart = rect.x()
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+ chartData.xPercentage[xIndexStart] * (fullWidth - p)
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- offset;
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return { leftStart, w };
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}
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} // namespace Statistic
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