VolumeHandler Class Reference

#include <qmmp/volumehandler.h>

Public Slots
void	checkVolume ()
void	reload ()

Signals
void	volumeChanged (int volume)
void	balanceChanged (int balance)
void	mutedChanged (bool muted)

Public Member Functions
	VolumeHandler (QObject *parent=nullptr)
	~VolumeHandler ()
void	setVolume (int left, int right)
void	changeVolume (int delta)
void	setVolume (int volume)
void	setBalance (int balance)
void	setMuted (bool muted)
int	left () const
int	right () const
int	volume () const
int	balance () const
bool	isMuted () const
void	apply (Buffer *b, int chan)

Static Public Member Functions
static VolumeHandler *	instance ()

Detailed Description

The VolumeHandler class provides volume control access.

Author

Ilya Kotov forko.nosp@m.tov0.nosp@m.2@ya..nosp@m.ru

Constructor & Destructor Documentation

VolumeHandler()

VolumeHandler

(

QObject *

parent = nullptr

)

Object constructor.

Parameters

parent

Parent object.

~VolumeHandler()

~VolumeHandler

(

)

Destructor.

Member Function Documentation

apply()

void apply	(	Buffer *	b,
		int	chan )

Changes buffer volume (software mode only).

Parameters

b	Buffer pointer.
chan	Number of channels.

balance()

int balance

(

)

const

Returns the balance between left and right channels.

balanceChanged

void balanceChanged ( int balance )

signal

Emitted when the balance between left and right channels has changed.

Parameters

balance

New balance value.

changeVolume()

void changeVolume

(

int

delta

)

Changes volume by delta percent

checkVolume

void checkVolume ( )

slot

Forces the volumeChanged signal to emit.

instance()

VolumeHandler * instance ( )

static

Returns a pointer to the global VolumeHandler instance.

isMuted()

bool isMuted

(

)

const

Returns true if volume is muted, otherwise returns false.

left()

int left

(

)

const

Returns left channel volume.

mutedChanged

void mutedChanged ( bool muted )

signal

Emitted when volume mute state has changed

Parameters

muted

New volume mute state.

reload

void reload ( )

slot

Updates volume configuration

right()

int right

(

)

const

Returns right channel volume.

setBalance()

void setBalance

(

int

balance

)

Sets the balance between left and right channels.

Parameters

balance

balance between left and right channels [-100..100].

setMuted()

void setMuted

(

bool

muted

)

Sets volume mute state to muted.

setVolume() [1/2]

void setVolume	(	int	left,
		int	right )

Setups volume level. Subclass should reimplement this fucntion.

Parameters

left	Left channel volume level. It should be 0..100
right	Right channel volume level. It should be 0..100

setVolume() [2/2]

void setVolume

(

int

volume

)

Sets the volume of the left and right channels with keeping of the balance.

Parameters

volume

volume of the left and right channels [0..100].

volume()

int volume

(

)

const

Returns the maximum volume of the left and right channels.

volumeChanged

void volumeChanged ( int volume )

signal

Emitted when the highest volume of the left and right channels has changed.

Parameters

volume

New value of the highest volume of the left and right channels.

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The documentation for this class was generated from the following file:

• /usr/src/RPM/BUILD/qmmp-2.3.1/src/qmmp/volumehandler.h