4400cb2bec
"Professional CMake" book suggest the following: "Targets should build successfully with or without compiler support for precompiled headers. It should be considered an optimization, not a requirement. In particular, do not explicitly include a precompile header (e.g. stdafx.h) in the source code, let CMake force-include an automatically generated precompile header on the compiler command line instead. This is more portable across the major compilers and is likely to be easier to maintain. It will also avoid warnings being generated from certain code checking tools like iwyu (include what you use)." Therefore, removed the "#include <PreCompiled.h>" from sources, also there is no need for the "#ifdef _PreComp_" anymore
107 lines
4.1 KiB
C++
107 lines
4.1 KiB
C++
// SPDX-License-Identifier: LGPL-2.1-or-later
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/****************************************************************************
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* *
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* Copyright (c) 2025 The FreeCAD Project Association AISBL *
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* *
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* This file is part of FreeCAD. *
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* *
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* FreeCAD is free software: you can redistribute it and/or modify it *
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* under the terms of the GNU Lesser General Public License as *
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* published by the Free Software Foundation, either version 2.1 of the *
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* License, or (at your option) any later version. *
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* *
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* FreeCAD is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with FreeCAD. If not, see *
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* <https://www.gnu.org/licenses/>. *
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* *
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***************************************************************************/
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#include <QCryptographicHash>
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#include <QDateTime>
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#include <QFileInfo>
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#include <QString>
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#include <QTimeZone>
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#include <QUrl>
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#include <fmt/format.h>
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#include "FileUtilities.h"
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#include <Base/TimeInfo.h>
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void Start::createThumbnailsDir()
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{
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if (!thumbnailsParentDir.exists(defaultThumbnailName)) {
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thumbnailsParentDir.mkpath(defaultThumbnailName);
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}
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}
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QString Start::getMD5Hash(const QString& path)
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{
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// Use MD5 hash as specified here:
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// https://specifications.freedesktop.org/thumbnail-spec/0.8.0/thumbsave.html
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QUrl url(path);
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url.setScheme(QStringLiteral("file"));
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QCryptographicHash hash(QCryptographicHash::Md5);
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hash.addData(url.toEncoded());
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const QByteArray ba = hash.result().toHex();
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return QString::fromLatin1(ba);
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}
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QString Start::getPathToCachedThumbnail(const QString& path)
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{
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const QString md5 = getMD5Hash(path) + QLatin1String(".png");
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return thumbnailsDir.absoluteFilePath(md5);
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}
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bool Start::useCachedThumbnail(const QString& image, const QString& project)
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{
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const QFileInfo f1(image);
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const QFileInfo f2(project);
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if (!f1.exists()) {
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return false;
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}
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if (!f2.exists()) {
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return false;
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}
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return f1.lastModified() > f2.lastModified();
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}
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std::string Start::humanReadableSize(uint64_t bytes)
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{
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if (bytes == 0) {
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return "0 B";
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}
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// uint64_t can't express numbers higher than the EB range (< 20 EB)
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constexpr std::array units {"B", "kB", "MB", "GB", "TB", "PB", "EB"};
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constexpr double unitFactor = 1000.0;
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const double logBaseFactor = std::log10(unitFactor); // change to constexpr on c++26
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const auto unitIndex = static_cast<size_t>(std::log10(bytes) / logBaseFactor);
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// unitIndex can't be out of range because uint64_t can't express numbers higher than the EB
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// range
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const auto unit = units.at(unitIndex);
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const double scaledValue = static_cast<double>(bytes) / std::pow(unitFactor, unitIndex);
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const bool isByteUnit = unitIndex == 0;
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const size_t precision = isByteUnit ? 0 : 1;
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return fmt::format("{:.{}f} {}", scaledValue, precision, unit);
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}
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std::string Start::getLastModifiedAsString(const Base::FileInfo& file)
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{
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Base::TimeInfo lastModified = file.lastModified();
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return QDateTime::fromSecsSinceEpoch(lastModified.getTime_t())
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.toTimeZone(QTimeZone::utc())
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.toString(Qt::ISODate)
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.toStdString();
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}
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