QTfrontend/util/DataManager.h
author unc0rr
Thu, 10 May 2012 11:29:18 +0400
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child 7258 722e8a0d89dc
permissions -rw-r--r--
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2012 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 DataManager class definition
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 */
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#ifndef HEDGEWARS_DATAMANAGER_H
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#define HEDGEWARS_DATAMANAGER_H
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#include <QDir>
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#include <QFile>
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#include <QStringList>
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#include "GameStyleModel.h"
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#include "HatModel.h"
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#include "MapModel.h"
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#include "ThemeModel.h"
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class QDir;
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class QFile;
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class QStringList;
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class GameStyleModel;
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class HatModel;
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class MapModel;
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class ThemeModel;
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/**
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 * @brief Offers access to the data files of hedgewars.
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 *
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 * @see <a href="http://en.wikipedia.org/wiki/Singleton_pattern">singleton pattern</a>
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 *
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 * @author sheepluva
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 * @since 0.9.17
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 */
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class DataManager: public QObject
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{
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        Q_OBJECT
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    public:
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        /**
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         * @brief Returns reference to the <i>singleton</i> instance of this class.
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         *
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         * @see <a href="http://en.wikipedia.org/wiki/Singleton_pattern">singleton pattern</a>
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         *
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         * @return reference to the instance.
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         */
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        static DataManager & instance();
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        /**
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         * @brief Returns a sorted list of data directory entries.
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         *
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         * @param subDirectory sub-directory to search.
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         * @param filters filters for entry type.
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         * @param nameFilters filters by name patterns.
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         * @return a sorted list of matches in the subDirectory of data directory.
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         */
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        QStringList entryList(const QString & subDirectory,
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                              QDir::Filters filters = QDir::NoFilter,
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                              const QStringList & nameFilters = QStringList("*")
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                             ) const;
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        /**
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         * @brief Returns the path for the desires data file.
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         *
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         * Use this method if you want to read an existing data file.
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         *
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         * @param relativeDataFilePath relative path of the data file.
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         * @return real path to the file.
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         */
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        QString findFileForRead(const QString & relativeDataFilePath) const;
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        /**
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         * @brief Returns the path for the data file that is to be written.
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         *
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         * Use this method if you want to create or write into a data file.
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         *
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         * @param relativeDataFilePath relative path of data file write path.
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         * @return destination of path data file.
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         */
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        QString findFileForWrite(const QString & relativeDataFilePath) const;
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        /**
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         * @brief Returns pointer to a model of available game styles.
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         *
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         * The model is updated automatically on data reload.
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         *
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         * @return game style model pointer.
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         */
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        GameStyleModel * gameStyleModel();
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        /**
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         * @brief Returns pointer to a model of available hats.
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         *
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         * The model is updated automatically on data reload.
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         *
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         * @return hat model pointer.
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         */
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        HatModel * hatModel();
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        /**
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         * @brief Returns pointer to a model of available maps.
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         *
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         * The model is updated automatically on data reload.
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         *
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         * @return map model pointer.
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         */
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        MapModel * mapModel();
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        /**
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         * @brief Returns pointer to a model of available themes.
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         *
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         * The model is updated automatically on data reload.
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         *
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         * @return theme model pointer.
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         */
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        ThemeModel * themeModel();
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    public slots:
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        /// Reloads data from storage.
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        void reload();
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    signals:
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        /// This signal is emitted after the data has been updated.
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        void updated();
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    private:
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        /**
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         * @brief Class constructor of the <i>singleton</i>.
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         *
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         * Not to be used from outside the class,
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         * use the static {@link DataManager::instance()} instead.
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         *
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         * @see <a href="http://en.wikipedia.org/wiki/Singleton_pattern">singleton pattern</a>
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         */
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        DataManager();
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        QDir * m_defaultData; ///< directory of the installed data
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        QDir * m_userData;    ///< directory of custom data in the user's directory
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        GameStyleModel * m_gameStyleModel; ///< game style model instance
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        HatModel * m_hatModel; ///< hat model instance
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        MapModel * m_mapModel; ///< map model instance
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        ThemeModel * m_themeModel; ///< theme model instance
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};
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#endif // HEDGEWARS_DATAMANAGER_H