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authoraxis <qt-info@nokia.com>2009-04-24 11:34:15 (GMT)
committeraxis <qt-info@nokia.com>2009-04-24 11:34:15 (GMT)
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Long live Qt for S60!
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+/* This file is part of the KDE project.
+
+ Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+
+ This library is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation, either version 2.1 or 3 of the License.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this library. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef Phonon_QT7_AUDIOMIXER_H
+#define Phonon_QT7_AUDIOMIXER_H
+
+#include <QtCore/QObject>
+#include <QtCore/QTime>
+#include <QtCore/QEvent>
+#include <phonon/effectinterface.h>
+#include <phonon/effectparameter.h>
+#include <phonon/volumefaderinterface.h>
+#include "medianode.h"
+#include "audionode.h"
+
+QT_BEGIN_NAMESPACE
+
+namespace Phonon
+{
+namespace QT7
+{
+ class AudioMixerAudioNode : public AudioNode
+ {
+ public:
+ AudioMixerAudioNode();
+ void setVolume(float volume, int bus = 0);
+ float volume(int bus = 0);
+
+ protected:
+ ComponentDescription getAudioNodeDescription() const;
+ void initializeAudioUnit();
+
+ private:
+ friend class AudioMixer;
+ int m_numberOfBusses;
+ float m_volume;
+ };
+
+ class AudioMixer : public MediaNode, Phonon::EffectInterface, Phonon::VolumeFaderInterface
+ {
+ Q_OBJECT
+ Q_INTERFACES(Phonon::EffectInterface Phonon::VolumeFaderInterface)
+
+ public:
+ AudioMixer(QObject *parent = 0);
+ ~AudioMixer();
+ AudioMixerAudioNode *m_audioNode;
+ Phonon::VolumeFaderEffect::FadeCurve m_fadeCurve;
+
+ int m_fadeTimer;
+ int m_fadeDuration;
+ float m_fadeToVolume;
+ float m_fadeFromVolume;
+ QTime m_fadeStartTime;
+
+ // EffectInterface:
+ QList<Phonon::EffectParameter> parameters() const;
+ QVariant parameterValue(const Phonon::EffectParameter &parameter) const;
+ void setParameterValue(const Phonon::EffectParameter &parameter, const QVariant &newValue);
+
+ // VolumeFaderInterface:
+ float volume() const;
+ void setVolume(float volume);
+ Phonon::VolumeFaderEffect::FadeCurve fadeCurve() const;
+ void setFadeCurve(Phonon::VolumeFaderEffect::FadeCurve fadeCurve);
+ void fadeTo(float volume, int fadeTime);
+ void updateFade();
+
+ protected:
+ bool event(QEvent *event);
+ };
+
+}} //namespace Phonon::QT7
+
+QT_END_NAMESPACE
+
+#endif // Phonon_QT7_AUDIOMIXER_H