| 1 | /* This file is part of the KDE project. |
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| 2 | * |
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| 3 | * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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| 4 | * Copyright (C) 2013 Martin Sandsmark <martin.sandsmark@kde.org> |
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| 5 | * |
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| 6 | * This library is free software: you can redistribute it and/or modify |
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| 7 | * it under the terms of the GNU Lesser General Public License as published by |
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| 8 | * the Free Software Foundation, either version 2.1 or 3 of the License. |
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| 9 | * |
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| 10 | * This library is distributed in the hope that it will be useful, |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | * GNU Lesser General Public License for more details. |
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| 14 | * |
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| 15 | * You should have received a copy of the GNU Lesser General Public License |
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| 16 | * along with this library. If not, see <http://www.gnu.org/licenses/>. |
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| 17 | */ |
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| 18 | |
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| 19 | #ifndef PHONON_VLC_VOLUMEFADEREFFECT_H |
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| 20 | #define PHONON_VLC_VOLUMEFADEREFFECT_H |
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| 21 | |
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| 22 | #include <phonon/volumefaderinterface.h> |
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| 23 | |
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| 24 | #include <QtCore/QTime> |
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| 25 | #include <QtCore/QPointer> |
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| 26 | |
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| 27 | #include "sinknode.h" |
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| 28 | |
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| 29 | class QTimeLine; |
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| 30 | |
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| 31 | namespace Phonon { |
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| 32 | |
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| 33 | class MediaObject; |
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| 34 | |
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| 35 | namespace VLC { |
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| 36 | |
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| 37 | class VolumeFaderEffect : public QObject, public SinkNode, public VolumeFaderInterface |
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| 38 | { |
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| 39 | Q_OBJECT |
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| 40 | Q_INTERFACES(Phonon::VolumeFaderInterface) |
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| 41 | |
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| 42 | public: |
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| 43 | explicit VolumeFaderEffect(QObject *parent = nullptr); |
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| 44 | ~VolumeFaderEffect() override; |
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| 45 | |
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| 46 | // VolumeFaderInterface: |
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| 47 | float volume() const override; |
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| 48 | Phonon::VolumeFaderEffect::FadeCurve fadeCurve() const override; |
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| 49 | void setFadeCurve(Phonon::VolumeFaderEffect::FadeCurve fadeCurve) override; |
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| 50 | void fadeTo(float volume, int fadeTime) override; |
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| 51 | void setVolume(float v) override; |
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| 52 | QPointer<MediaObject> mediaObject() { return m_mediaObject; } |
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| 53 | |
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| 54 | private Q_SLOTS: |
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| 55 | void slotSetVolume(qreal v); |
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| 56 | |
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| 57 | private: |
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| 58 | void abortFade(); |
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| 59 | inline void setVolumeInternal(float v); |
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| 60 | |
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| 61 | Phonon::VolumeFaderEffect::FadeCurve m_fadeCurve; |
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| 62 | float m_fadeFromVolume; |
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| 63 | float m_fadeToVolume; |
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| 64 | QTimeLine *m_fadeTimeline; |
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| 65 | |
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| 66 | }; |
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| 67 | |
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| 68 | } // namespace VLC |
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| 69 | } // namespace Phonon |
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| 70 | |
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| 71 | #endif // PHONON_VLC_VOLUMEFADEREFFECT_H |
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| 72 | |
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