SoundEffectInstance.h

/*
 * Copyright (C) 2014 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef SOUNDEFFECTINSTANCE_H
#define SOUNDEFFECTINSTANCE_H

#include <QSharedPointer>

class QSoundEffect;

class SoundEffectInstance {
public:
    SoundEffectInstance();
    explicit SoundEffectInstance(const QSharedPointer<QSoundEffect>& soundEffect);
    SoundEffectInstance(SoundEffectInstance&& other);
    SoundEffectInstance(const SoundEffectInstance& other) = delete;

    ~SoundEffectInstance();

    SoundEffectInstance& operator=(SoundEffectInstance&& other);
    SoundEffectInstance& operator=(const SoundEffectInstance& other) = delete;

    void reset();
    void reset(SoundEffectInstance&& other);
    void swap(SoundEffectInstance& other);

    void setLooped(bool value);
    void setVolume(float value);

    bool isPlaying() const;

    void play();
    void stop();

private:
    void stopIfNecessary(bool isStopped);
    void updateVolume();
    void applyPlay();
    void applyStop();

    QSharedPointer<QSoundEffect> mSoundEffect;
    bool mLooped = false;
    float mVolume = 1.0f;

    // Indicates if this instance is currently playing, and is looped.
    bool mPlayingLooped = false;
};

#endif // SOUNDEFFECTINSTANCE_H