QTfrontend/util/SDLInteraction.h
author sheepluva
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/*
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 * Hedgewars, a free turn based strategy game
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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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#ifndef HEDGEWARS_SDLINTERACTION_H
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#define HEDGEWARS_SDLINTERACTION_H
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#include <QMap>
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#include <QStringList>
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#include "SDL_mixer.h"
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/**
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 * @brief Class for interacting with SDL (used for music and keys)
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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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class SDLInteraction
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{
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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 HWDataManager::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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    SDLInteraction();
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    /// Initializes SDL for sound output if needed.
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    void SDLSoundInit();
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    Mix_Music *music;
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    int musicInitialized;
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    QMap<QString,Mix_Chunk*> * soundMap; ///< maps sound file paths to channel
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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 SDLInteraction & instance();
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    /// Class Destructor.
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    ~SDLInteraction();
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    /**
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     * @brief Returns available (screen) resolutions.
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     *
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     * @return list of resolutions in the format WIDTHxHEIGHT.
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     */
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    QStringList getResolutions() const;
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    /// Adds all available joystick controlls to the list of SDL keys.
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    void addGameControllerKeys() const;
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    /**
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     * @brief Plays a sound file.
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     * 
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     * @param soundFile path of the sound file.
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     */
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    void playSoundFile(const QString & soundFile);
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    /// Starts the background music.
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    void startMusic();
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    /// Fades out and stops the background music.
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    void stopMusic();
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};
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#endif //HEDGEWARS_SDLINTERACTION_H
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