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/* audiodevs: Abstraction layer for audio hardware & samples
Copyright (C) 2003-2004 Nemosoft Unv.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
For questions, remarks, patches, etc. for this program, the author can be
reached at camstream@smcc.demon.nl.
*/
#ifndef AUDIODEVICEMIXER_HPP
#define AUDIODEVICEMIXER_HPP
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <qbuttongroup.h>
#include <qcheckbox.h>
#include <qcombobox.h>
#include <qdict.h>
#include <qdom.h>
#include <qgrid.h>
#include <qobject.h>
#include <qlabel.h>
#include <qlayout.h>
#include <qradiobutton.h>
#include <qscrollview.h>
#include <qslider.h>
#include <qsocket.h>
#include <qvector.h>
#include <qwidget.h>
#if (QT_VERSION >= 0x030000)
#include <qmutex.h>
#endif
#define ALSA_PCM_NEW_HW_PARAMS_API
#define ALSA_PCM_NEW_SW_PARAMS_API
#include <alsa/asoundlib.h>
class CAudioControlScrollWidget: public QScrollView
{
protected:
void viewportResizeEvent(QResizeEvent *e);
public:
QWidget *m_pCanvas;
QGridLayout *m_pGrid;
QVector <QButtonGroup> m_CaptureGroups;
CAudioControlScrollWidget(QWidget *parent = 0, const char *name = 0, WFlags f = 0);
void SetSize();
};
class CAudioMixerElement: public QObject
{
Q_OBJECT
private:
enum ControlType { Unknown, Playback, Capture, PlaybackCapture, Switch, Enumeration };
ControlType m_SliderType;
snd_mixer_t *m_pMixer;
snd_mixer_selem_id_t *m_pSID;
int m_ChannelMask, m_ChannelCount;
snd_mixer_selem_channel_id_t m_Channels[SND_MIXER_SCHN_LAST + 1];
// column 0
QString m_Name;
// column 1
bool m_PlaybackMono;
bool m_PlaybackSwitch;
bool m_PlaybackSwitchIsMute;
bool m_PlaybackVolumeJoined, m_PlaybackSwitchJoined;
QSlider *m_pPlaybackSlider[SND_MIXER_SCHN_LAST + 1];
QComboBox *m_pDropdownBox;
// column 2
QCheckBox *m_pPlaybackCheckBox;
// column 3
bool m_CaptureMono;
bool m_CaptureSwitch;
bool m_CaptureVolumeJoined, m_CaptureSwitchJoined;
bool m_CaptureExclusive;
int m_CaptureGroup;
QSlider *m_pCaptureSlider;
// column 4
QRadioButton *m_pCaptureRadioButton; // only one of these two is used
QCheckBox *m_pCaptureCheckBox;
private slots:
void MovedCaptureVolume(int);
void MovedPlaybackVolume(int);
void ChangedEnumerationSelection(int);
void ToggledSwitch(bool);
void ToggledCapture(int);
public:
CAudioMixerElement(snd_mixer_t *mixer, snd_mixer_elem_t *elem, int row, CAudioControlScrollWidget *parent);
~CAudioMixerElement();
const QString &GetName() const { return m_Name; };
void GetConfiguration(QDomNode &dom_node) const;
void SetConfiguration(const QDomNode &dom_node) const;
int GetCaptureGroup() const;
public slots:
void UpdateFromDevice();
signals:
void UserClickedSomething();
};
class CAudioControlLinux: public QObject
{
Q_OBJECT
private:
QString m_DeviceName;
snd_mixer_t *m_pMixer;
unsigned int m_Count;
QDict<CAudioMixerElement> m_Elements;
QWidget *m_pMixerWidget;
CAudioControlScrollWidget *m_pScrollWidget;
int m_PollFDCount;
struct pollfd *m_pPollFDs;
QVector<QSocket> m_Sockets;
private slots:
void SocketRead();
protected:
public:
CAudioControlLinux(const char *device);
~CAudioControlLinux();
void GetConfiguration(QDomNode &dom_node) const;
void SetConfiguration(const QDomNode &dom_node);
public slots:
void ShowControls();
signals:
void ForceUpdate(); ///< Connected to MixerElements, to update them all at once
void UpdateControls(); ///< Emitted when the user changes something in the GUI
};
#endif
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