citra/src/citra_qt/util/util.cpp

// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#include <array>
#include <cmath>
#include "citra_qt/util/util.h"

QFont GetMonospaceFont() {
    QFont font("monospace");
    // Automatic fallback to a monospace font on on platforms without a font called "monospace"
    font.setStyleHint(QFont::Monospace);
    font.setFixedPitch(true);
    return font;
}

QString ReadableByteSize(qulonglong size) {
    static const std::array<const char*, 6> units = {"B", "KiB", "MiB", "GiB", "TiB", "PiB"};
    if (size == 0)
        return "0";
    int digit_groups = std::min<int>(static_cast<int>(std::log10(size) / std::log10(1024)),
                                     static_cast<int>(units.size()));
    return QString("%L1 %2")
        .arg(size / std::pow(1024, digit_groups), 0, 'f', 1)
        .arg(units[digit_groups]);
}