QTfrontend/util/HWDataManager.cpp
author Oranger
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2006-2007 Igor Ulyanov <iulyanov@gmail.com>
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 * Copyright (c) 2007-2011 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 */
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/**
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 * @file
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 * @brief HWDataManager class implementation
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 */
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#include <QMap>
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#include <QStringList>
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#include <QFileInfo>
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#include "hwconsts.h"
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#include "HWDataManager.h"
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HWDataManager::HWDataManager()
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{
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    userData = new QDir(cfgdir->absolutePath());
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    if (!userData->cd("Data"))
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        userData = NULL;
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    defaultData = new QDir(datadir->absolutePath());
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}
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HWDataManager & HWDataManager::instance()
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{
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    static HWDataManager instance;
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    return instance;
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}
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QStringList HWDataManager::entryList(
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                    const QString & subDirectory,
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                    QDir::Filters filters,
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                    const QStringList & nameFilters
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                    ) const
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{
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    QStringList result;
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    if (userData != NULL)
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    {
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        QDir tmpDir(*userData);
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        if (tmpDir.cd(subDirectory))
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            result.append(tmpDir.entryList(nameFilters, filters));
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    }
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    QDir tmpDir(*defaultData);
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    if (tmpDir.cd(subDirectory))
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        result.append(tmpDir.entryList(nameFilters, filters));
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    result.removeDuplicates();
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    // sort case-insensitive
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    QMap<QString, QString> sortedFileNames;
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    foreach ( QString fn, result)
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    {
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        sortedFileNames.insert(fn.toLower(), fn);
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    }
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    result = sortedFileNames.values();
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    return result;
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}
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QString HWDataManager::findFileForRead(
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                                const QString & relativeDataFilePath) const
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{
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    QString path;
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    if (userData != NULL)
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        path = userData->absolutePath()+"/"+relativeDataFilePath;
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    if ((!path.isEmpty()) && (!QFile::exists(path)))
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        path = defaultData->absolutePath()+"/"+relativeDataFilePath;
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    return path;
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}
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QString HWDataManager::findFileForWrite(
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                                const QString & relativeDataFilePath) const
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{
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    if (userData != NULL)
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    {
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        QString path = userData->absolutePath()+"/"+relativeDataFilePath;
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        // create folders if needed
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        QDir tmp;
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        tmp.mkpath(QFileInfo(path).absolutePath());
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        return path;
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    }
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    return "";
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}
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