Differential D7992 Diff 28750 plugins/systemvolume/volumeobject.h

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plugins/systemvolume/volumeobject.h

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		1		/*
		2		Copyright 2014-2015 Harald Sitter <sitter@kde.org>
		3
		4		This library is free software; you can redistribute it and/or
		5		modify it under the terms of the GNU Lesser General Public
		6		License as published by the Free Software Foundation; either
		7		version 2.1 of the License, or (at your option) version 3, or any
		8		later version accepted by the membership of KDE e.V. (or its
		9		successor approved by the membership of KDE e.V.), which shall
		10		act as a proxy defined in Section 6 of version 3 of the license.
		11
		12		This library is distributed in the hope that it will be useful,
		13		but WITHOUT ANY WARRANTY; without even the implied warranty of
		14		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		15		Lesser General Public License for more details.
		16
		17		You should have received a copy of the GNU Lesser General Public
		18		License along with this library. If not, see <http://www.gnu.org/licenses/>.
		19		*/
		20
		21		#ifndef VOLUMEOBJECT_H
		22		#define VOLUMEOBJECT_H
		23
		24		#include <pulse/volume.h>
		25
		26		#include "pulseobject.h"
		27
		28		namespace QPulseAudio
		29		{
		30
		31		class VolumeObject : public PulseObject
		32		{
		33		Q_OBJECT
		34		Q_PROPERTY(qint64 volume READ volume WRITE setVolume NOTIFY volumeChanged)
		35		Q_PROPERTY(bool muted READ isMuted WRITE setMuted NOTIFY mutedChanged)
		36		Q_PROPERTY(bool hasVolume READ hasVolume NOTIFY hasVolumeChanged)
		37		Q_PROPERTY(bool volumeWritable READ isVolumeWritable NOTIFY isVolumeWritableChanged)
		38		Q_PROPERTY(QStringList channels READ channels NOTIFY channelsChanged)
		39		Q_PROPERTY(QList<qreal> channelVolumes READ channelVolumes NOTIFY channelVolumesChanged)
		40		public:
		41		VolumeObject(QObject *parent);
		42		virtual ~VolumeObject();
		43
		44		template <typename PAInfo>
		45		void updateVolumeObject(PAInfo *info)
		46		{
		47		updatePulseObject(info);
		48		if (m_muted != info->mute) {
		49		m_muted = info->mute;
		50		emit mutedChanged();
		51		}
		52		if (!pa_cvolume_equal(&m_volume, &info->volume)) {
		53		m_volume = info->volume;
		54		emit volumeChanged();
		55		emit channelVolumesChanged();
		56		}
		57		QStringList infoChannels;
		58		infoChannels.reserve(info->channel_map.channels);
		59		for (int i = 0; i < info->channel_map.channels; ++i) {
		60		infoChannels << QString::fromUtf8(pa_channel_position_to_pretty_string(info->channel_map.map[i]));
		61		}
		62		if (m_channels != infoChannels) {
		63		m_channels = infoChannels;
		64		emit channelsChanged();
		65		}
		66		}
		67
		68		qint64 volume() const;
		69		virtual void setVolume(qint64 volume) = 0;
		70
		71		bool isMuted() const;
		72		virtual void setMuted(bool muted) = 0;
		73
		74		bool hasVolume() const;
		75		bool isVolumeWritable() const;
		76
		77		QStringList channels() const;
		78		QList<qreal> channelVolumes() const;
		79		Q_INVOKABLE virtual void setChannelVolume(int channel, qint64 volume) = 0;
		80
		81		signals:
		82		void volumeChanged();
		83		void mutedChanged();
		84		void hasVolumeChanged();
		85		void isVolumeWritableChanged();
		86		void channelsChanged();
		87		void channelVolumesChanged();
		88
		89		protected:
		90		pa_cvolume cvolume() const;
		91
		92		pa_cvolume m_volume;
		93		bool m_muted;
		94		bool m_hasVolume;
		95		bool m_volumeWritable;
		96		QStringList m_channels;
		97		};
		98
		99		} // QPulseAudio
		100
		101		#endif // VOLUMEOBJECT_H