24 lines
789 B
C++
24 lines
789 B
C++
// SPDX-FileCopyrightText: 2023 James Graham <james.h.graham@protonmail.com>
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// SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
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#include <QColor>
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#include <QGuiApplication>
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#include <QPalette>
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namespace Utils
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{
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/**
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* @brief Get a color for a user from a hueF value.
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*
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* The lightness of the color will be modified depending on the current palette in
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* order to maintain contrast.
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*/
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inline QColor getUserColor(qreal hueF)
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{
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const auto lightness = static_cast<QGuiApplication *>(QGuiApplication::instance())->palette().color(QPalette::Active, QPalette::Window).lightnessF();
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// https://github.com/quotient-im/libQuotient/wiki/User-color-coding-standard-draft-proposal
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return QColor::fromHslF(hueF, 1, -0.7 * lightness + 0.9, 1);
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}
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}
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