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/* borrowed from https://github.com/skhaz/qt-physfs-wrapper
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* TODO: add copyright header, determine license
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*/
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#include "FileEngine.h"
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const QString FileEngineHandler::scheme = "physfs:/";
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FileEngine::FileEngine(const QString& filename)
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: _handler(NULL)
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, _flags(0)
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{
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setFileName(filename);
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}
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FileEngine::~FileEngine()
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{
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close();
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}
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bool FileEngine::open(QIODevice::OpenMode openMode)
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{
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close();
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if (openMode & QIODevice::WriteOnly) {
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_handler = PHYSFS_openWrite(_filename.toUtf8().constData());
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_flags = QAbstractFileEngine::WriteOwnerPerm | QAbstractFileEngine::WriteUserPerm | QAbstractFileEngine::FileType;
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}
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else if (openMode & QIODevice::ReadOnly) {
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_handler = PHYSFS_openRead(_filename.toUtf8().constData());
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}
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else if (openMode & QIODevice::Append) {
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_handler = PHYSFS_openAppend(_filename.toUtf8().constData());
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}
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else {
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qWarning("Bad file open mode: %d", (int)openMode);
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}
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if (!_handler) {
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qWarning("Failed to open %s, reason: %s", _filename.toUtf8().constData(), PHYSFS_getLastError());
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return false;
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}
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return true;
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}
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bool FileEngine::close()
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{
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if (isOpened()) {
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int result = PHYSFS_close(_handler);
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_handler = NULL;
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return result != 0;
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}
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return true;
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}
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bool FileEngine::flush()
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{
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return PHYSFS_flush(_handler) != 0;
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}
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qint64 FileEngine::size() const
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{
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return _size;
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}
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qint64 FileEngine::pos() const
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{
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return PHYSFS_tell(_handler);
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}
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bool FileEngine::seek(qint64 pos)
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{
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return PHYSFS_seek(_handler, pos) != 0;
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}
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bool FileEngine::isSequential() const
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{
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return false;
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}
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bool FileEngine::remove()
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{
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return PHYSFS_delete(_filename.toUtf8().constData()) != 0;
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}
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bool FileEngine::mkdir(const QString &dirName, bool createParentDirectories) const
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{
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Q_UNUSED(createParentDirectories);
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return PHYSFS_mkdir(dirName.toUtf8().constData()) != 0;
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}
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bool FileEngine::rmdir(const QString &dirName, bool recurseParentDirectories) const
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{
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Q_UNUSED(recurseParentDirectories);
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return PHYSFS_delete(dirName.toUtf8().constData()) != 0;
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}
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bool FileEngine::caseSensitive() const
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{
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return true;
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}
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bool FileEngine::isRelativePath() const
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{
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return true;
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}
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QAbstractFileEngineIterator * FileEngine::beginEntryList(QDir::Filters filters, const QStringList &filterNames)
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{
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return new FileEngineIterator(filters, filterNames, entryList(filters, filterNames));
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}
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QStringList FileEngine::entryList(QDir::Filters filters, const QStringList &filterNames) const
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{
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Q_UNUSED(filters);
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QString file;
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QStringList result;
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char **files = PHYSFS_enumerateFiles(_filename.toUtf8().constData());
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for (char **i = files; *i != NULL; i++) {
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file = QString::fromUtf8(*i);
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if (filterNames.isEmpty() || QDir::match(filterNames, file)) {
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result << file;
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}
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}
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PHYSFS_freeList(files);
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return result;
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}
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QAbstractFileEngine::FileFlags FileEngine::fileFlags(FileFlags type) const
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{
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return type & _flags;
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}
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QString FileEngine::fileName(FileName file) const
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{
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if (file == QAbstractFileEngine::AbsolutePathName)
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return PHYSFS_getWriteDir();
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return _filename;
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}
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QDateTime FileEngine::fileTime(FileTime time) const
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{
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switch (time)
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{
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case QAbstractFileEngine::ModificationTime:
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default:
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return _datetime;
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break;
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};
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}
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void FileEngine::setFileName(const QString &file)
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{
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if(file.startsWith(FileEngineHandler::scheme))
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_filename = file.mid(FileEngineHandler::scheme.size());
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else
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_filename = file;
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PHYSFS_Stat stat;
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if (PHYSFS_stat(_filename.toUtf8().constData(), &stat) != 0) {
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_size = stat.filesize;
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_datetime = QDateTime::fromTime_t(stat.modtime);
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_flags |= QAbstractFileEngine::ExistsFlag;
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switch (stat.filetype)
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{
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case PHYSFS_FILETYPE_REGULAR:
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_flags |= QAbstractFileEngine::FileType;
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break;
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case PHYSFS_FILETYPE_DIRECTORY:
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_flags |= QAbstractFileEngine::DirectoryType;
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break;
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case PHYSFS_FILETYPE_SYMLINK:
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_flags |= QAbstractFileEngine::LinkType;
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break;
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default: ;
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};
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}
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}
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bool FileEngine::atEnd() const
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{
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return PHYSFS_eof(_handler) != 0;
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}
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qint64 FileEngine::read(char *data, qint64 maxlen)
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{
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return PHYSFS_readBytes(_handler, data, maxlen);
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}
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qint64 FileEngine::write(const char *data, qint64 len)
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{
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return PHYSFS_writeBytes(_handler, data, len);
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}
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bool FileEngine::isOpened() const
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{
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return _handler != NULL;
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}
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QFile::FileError FileEngine::error() const
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{
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return QFile::UnspecifiedError;
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}
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QString FileEngine::errorString() const
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{
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return PHYSFS_getLastError();
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}
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bool FileEngine::supportsExtension(Extension extension) const
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{
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return extension == QAbstractFileEngine::AtEndExtension;
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}
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FileEngineHandler::FileEngineHandler(char *argv0)
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{
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PHYSFS_init(argv0);
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}
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FileEngineHandler::~FileEngineHandler()
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{
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PHYSFS_deinit();
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}
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QAbstractFileEngine* FileEngineHandler::create(const QString &filename) const
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{
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if (filename.startsWith(scheme))
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return new FileEngine(filename.mid(scheme.size()));
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else
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return NULL;
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}
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void FileEngineHandler::mount(const QString &path)
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{
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PHYSFS_mount(path.toUtf8().constData(), NULL, 1);
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}
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void FileEngineHandler::setWriteDir(const QString &path)
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{
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PHYSFS_setWriteDir(path.toUtf8().constData());
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}
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FileEngineIterator::FileEngineIterator(QDir::Filters filters, const QStringList &nameFilters, const QStringList &entries)
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: QAbstractFileEngineIterator(filters, nameFilters)
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{
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m_entries = entries;
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/* heck.. docs are unclear on this
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* QDirIterator puts iterator before first entry
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* but QAbstractFileEngineIterator example puts iterator on first entry
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* though QDirIterator approach seems to be the right one
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*/
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m_index = -1;
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}
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bool FileEngineIterator::hasNext() const
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{
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return m_index < m_entries.size() - 1;
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}
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QString FileEngineIterator::next()
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{
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if (!hasNext())
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return QString();
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++m_index;
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return currentFilePath();
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}
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QString FileEngineIterator::currentFileName() const
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{
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return m_entries.at(m_index);
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}
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