QTfrontend/util/FileEngine.cpp
author unc0rr
Mon, 03 Dec 2012 23:54:12 +0400
changeset 8206 1633a6510834
parent 8178 8bd087478b48
child 8330 aaefa587e277
permissions -rw-r--r--
Create hedgewars.ini if not exists manually, as QSettings uses QTemporaryFile for that, and QTemporaryFile doesn't respect custom file engines.
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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 "hwpacksmounter.h"
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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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    : m_handle(NULL)
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    , m_size(0)
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    , m_flags(0)
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    , m_bufferSet(false)
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    , m_readWrite(false)
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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::ReadWrite) == QIODevice::ReadWrite) {
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        m_handle = PHYSFS_openAppend(m_fileName.toUtf8().constData());
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        if(m_handle)
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        {
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            m_readWrite = true;
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            seek(0);
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        }
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    }
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    else if (openMode & QIODevice::WriteOnly) {
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        m_handle = PHYSFS_openWrite(m_fileName.toUtf8().constData());
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        m_flags = QAbstractFileEngine::WriteOwnerPerm | QAbstractFileEngine::WriteUserPerm | QAbstractFileEngine::FileType;
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    }
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    else if (openMode & QIODevice::ReadOnly) {
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        m_handle = PHYSFS_openRead(m_fileName.toUtf8().constData());
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    }
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    else if (openMode & QIODevice::Append) {
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        m_handle = PHYSFS_openAppend(m_fileName.toUtf8().constData());
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    }
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    else {
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        qWarning("[PHYSFS] Bad file open mode: %d", (int)openMode);
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    }
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    if (!m_handle) {
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        qWarning("[PHYSFS] Failed to open %s, reason: %s", m_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(m_handle);
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        m_handle = 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(m_handle) != 0;
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}
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qint64 FileEngine::size() const
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{
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    return m_size;
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}
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qint64 FileEngine::pos() const
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{
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    return PHYSFS_tell(m_handle);
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}
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bool FileEngine::setSize(qint64 size)
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{
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    if(size == 0)
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    {
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        m_size = 0;
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        return open(QIODevice::WriteOnly);
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    }
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    else
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        return false;
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}
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bool FileEngine::seek(qint64 pos)
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{
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    bool ok = PHYSFS_seek(m_handle, pos) != 0;
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    return ok;
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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(m_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 false;
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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(m_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 & m_flags;
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}
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QString FileEngine::fileName(FileName file) const
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{
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    switch(file)
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    {
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        case QAbstractFileEngine::AbsolutePathName:
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        {
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            QString s(PHYSFS_getWriteDir());
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            return s;
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        }
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        case QAbstractFileEngine::BaseName:
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        {
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            int l = m_fileName.lastIndexOf('/');
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            QString s = m_fileName.mid(l + 1);
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            return s;
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        }
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   188
        case QAbstractFileEngine::DefaultName:
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   189
        case QAbstractFileEngine::AbsoluteName:
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   190
        default:
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   191
        {
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            QString s = "physfs:/" + m_fileName;
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   193
            return s;
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   194
        }
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   195
    }
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   196
}
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   197
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   198
QDateTime FileEngine::fileTime(FileTime time) const
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   199
{
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   200
    switch (time)
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   201
    {
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   202
        case QAbstractFileEngine::ModificationTime:
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   203
        default:
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   204
            return m_date;
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   205
            break;
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   206
    };
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   207
}
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   208
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   209
void FileEngine::setFileName(const QString &file)
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   210
{
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   211
    if(file.startsWith(FileEngineHandler::scheme))
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   212
        m_fileName = file.mid(FileEngineHandler::scheme.size());
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   213
    else
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   214
        m_fileName = file;
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   215
    PHYSFS_Stat stat;
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   216
    if (PHYSFS_stat(m_fileName.toUtf8().constData(), &stat) != 0) {        
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   217
        m_size = stat.filesize;
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   218
        m_date = QDateTime::fromTime_t(stat.modtime);
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1633a6510834 Create hedgewars.ini if not exists manually,
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   219
//        m_flags |= QAbstractFileEngine::WriteOwnerPerm;
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   220
        m_flags |= QAbstractFileEngine::ReadOwnerPerm;
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   221
        m_flags |= QAbstractFileEngine::ReadUserPerm;
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   222
        m_flags |= QAbstractFileEngine::ExistsFlag;
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   223
        m_flags |= QAbstractFileEngine::LocalDiskFlag;
7768
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   224
13e2037ebc79 Try using PhysicsFS.
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   225
        switch (stat.filetype)
13e2037ebc79 Try using PhysicsFS.
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   226
        {
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   227
            case PHYSFS_FILETYPE_REGULAR:
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   228
                m_flags |= QAbstractFileEngine::FileType;
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   229
                break;
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   230
            case PHYSFS_FILETYPE_DIRECTORY:
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   231
                m_flags |= QAbstractFileEngine::DirectoryType;
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   232
                break;
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   233
            case PHYSFS_FILETYPE_SYMLINK:
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   234
                m_flags |= QAbstractFileEngine::LinkType;
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   235
                break;
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   236
            default: ;
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85b3970b402a - Load teams via physfs
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   237
        }
7768
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   238
    }
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   239
}
13e2037ebc79 Try using PhysicsFS.
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   240
13e2037ebc79 Try using PhysicsFS.
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   241
bool FileEngine::atEnd() const
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   242
{
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   243
    return PHYSFS_eof(m_handle) != 0;
7768
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   244
}
13e2037ebc79 Try using PhysicsFS.
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   245
13e2037ebc79 Try using PhysicsFS.
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   246
qint64 FileEngine::read(char *data, qint64 maxlen)
13e2037ebc79 Try using PhysicsFS.
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   247
{
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   248
    if(m_readWrite)
8bd087478b48 Fix QSettings problems:
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diff changeset
   249
    {
8bd087478b48 Fix QSettings problems:
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   250
        if(pos() == 0)
8bd087478b48 Fix QSettings problems:
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   251
            open(QIODevice::ReadOnly);
8bd087478b48 Fix QSettings problems:
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diff changeset
   252
        else
8bd087478b48 Fix QSettings problems:
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   253
            return -1;
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   254
    }
8bd087478b48 Fix QSettings problems:
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   255
8bd087478b48 Fix QSettings problems:
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   256
    qint64 len = PHYSFS_readBytes(m_handle, data, maxlen);
8bd087478b48 Fix QSettings problems:
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   257
    return len;
7768
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   258
}
13e2037ebc79 Try using PhysicsFS.
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   259
8112
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   260
qint64 FileEngine::readLine(char *data, qint64 maxlen)
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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diff changeset
   261
{
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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diff changeset
   262
    if(!m_bufferSet)
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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diff changeset
   263
    {
8115
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   264
        PHYSFS_setBuffer(m_handle, 4096);
8112
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   265
        m_bufferSet = true;
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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diff changeset
   266
    }
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   267
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   268
    qint64 bytesRead = 0;
8115
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   269
    while(PHYSFS_readBytes(m_handle, data, 1)
8112
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   270
          && maxlen
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   271
          && (*data == '\n'))
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   272
    {
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   273
        ++data;
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   274
        --maxlen;
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   275
        ++bytesRead;
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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diff changeset
   276
    }
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   277
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   278
    return bytesRead;
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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diff changeset
   279
}
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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diff changeset
   280
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   281
qint64 FileEngine::write(const char *data, qint64 len)
13e2037ebc79 Try using PhysicsFS.
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   282
{
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   283
    return PHYSFS_writeBytes(m_handle, data, len);
7768
13e2037ebc79 Try using PhysicsFS.
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   284
}
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   285
13e2037ebc79 Try using PhysicsFS.
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   286
bool FileEngine::isOpened() const
13e2037ebc79 Try using PhysicsFS.
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   287
{
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   288
    return m_handle != NULL;
7768
13e2037ebc79 Try using PhysicsFS.
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   289
}
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   290
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   291
QFile::FileError FileEngine::error() const
13e2037ebc79 Try using PhysicsFS.
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   292
{
13e2037ebc79 Try using PhysicsFS.
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   293
    return QFile::UnspecifiedError;
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   294
}
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   295
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   296
QString FileEngine::errorString() const
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   297
{
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   298
    return PHYSFS_getLastError();
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   299
}
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   300
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   301
bool FileEngine::supportsExtension(Extension extension) const
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   302
{
8112
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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diff changeset
   303
    return
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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   304
            (extension == QAbstractFileEngine::AtEndExtension)
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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diff changeset
   305
            || (extension == QAbstractFileEngine::FastReadLineExtension)
d85dc8a8f41c Implement QAbstractFileEngine::FastReadLineExtension
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diff changeset
   306
            ;
7768
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   307
}
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   308
7770
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   309
ff3442338882 Many bugfixes and features to FileEngine
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   310
FileEngineHandler::FileEngineHandler(char *argv0)
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   311
{
ff3442338882 Many bugfixes and features to FileEngine
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   312
    PHYSFS_init(argv0);
ff3442338882 Many bugfixes and features to FileEngine
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   313
}
ff3442338882 Many bugfixes and features to FileEngine
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   314
ff3442338882 Many bugfixes and features to FileEngine
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   315
FileEngineHandler::~FileEngineHandler()
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   316
{
ff3442338882 Many bugfixes and features to FileEngine
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   317
    PHYSFS_deinit();
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   318
}
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   319
7768
13e2037ebc79 Try using PhysicsFS.
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diff changeset
   320
QAbstractFileEngine* FileEngineHandler::create(const QString &filename) const
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   321
{
7770
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diff changeset
   322
    if (filename.startsWith(scheme))
8178
8bd087478b48 Fix QSettings problems:
unc0rr
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diff changeset
   323
        return new FileEngine(filename);
7770
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   324
    else
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   325
        return NULL;
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   326
}
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   327
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   328
void FileEngineHandler::mount(const QString &path)
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   329
{
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   330
    PHYSFS_mount(path.toUtf8().constData(), NULL, 1);
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   331
}
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   332
7955
85b3970b402a - Load teams via physfs
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diff changeset
   333
void FileEngineHandler::mount(const QString & path, const QString & mountPoint)
85b3970b402a - Load teams via physfs
unc0rr
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diff changeset
   334
{
85b3970b402a - Load teams via physfs
unc0rr
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diff changeset
   335
    PHYSFS_mount(path.toUtf8().constData(), mountPoint.toUtf8().constData(), 1);
85b3970b402a - Load teams via physfs
unc0rr
parents: 7931
diff changeset
   336
}
85b3970b402a - Load teams via physfs
unc0rr
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diff changeset
   337
7770
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diff changeset
   338
void FileEngineHandler::setWriteDir(const QString &path)
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   339
{
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   340
    PHYSFS_setWriteDir(path.toUtf8().constData());
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   341
}
7770
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diff changeset
   342
8052
845b5ae03841 Mount .hwt files found in Data folder
unc0rr
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diff changeset
   343
void FileEngineHandler::mountPacks()
845b5ae03841 Mount .hwt files found in Data folder
unc0rr
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diff changeset
   344
{
845b5ae03841 Mount .hwt files found in Data folder
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diff changeset
   345
    hedgewarsMountPackages();
845b5ae03841 Mount .hwt files found in Data folder
unc0rr
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diff changeset
   346
}
7770
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   347
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   348
ff3442338882 Many bugfixes and features to FileEngine
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   349
FileEngineIterator::FileEngineIterator(QDir::Filters filters, const QStringList &nameFilters, const QStringList &entries)
ff3442338882 Many bugfixes and features to FileEngine
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   350
    : QAbstractFileEngineIterator(filters, nameFilters)
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   351
{
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   352
    m_entries = entries;
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   353
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   354
    /* heck.. docs are unclear on this
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   355
     * QDirIterator puts iterator before first entry
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   356
     * but QAbstractFileEngineIterator example puts iterator on first entry
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   357
     * though QDirIterator approach seems to be the right one
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   358
     */
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   359
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   360
    m_index = -1;
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   361
}
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   362
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   363
bool FileEngineIterator::hasNext() const
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   364
{
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   365
    return m_index < m_entries.size() - 1;
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   366
}
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   367
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   368
QString FileEngineIterator::next()
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   369
{
ff3442338882 Many bugfixes and features to FileEngine
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diff changeset
   370
   if (!hasNext())
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       return QString();
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   372
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   373
   ++m_index;
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   374
   return currentFilePath();
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   375
}
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   376
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   377
QString FileEngineIterator::currentFileName() const
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{
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   379
    return m_entries.at(m_index);
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}