內容

• 特性
• 公共函數
• 公共槽
• 詳細描述

SeekSlider Class

( Phonon::SeekSlider )

The SeekSlider class provides a slider for seeking to positions in media streams. 更多...

頭：	#include <Phonon/SeekSlider>
Since:	Qt 4.4
繼承：	QWidget

• 所有成員列錶，包括繼承成員

特性

iconSize : QSize iconVisible : bool orientation : Qt::Orientation

pageStep : int singleStep : int tracking : bool

• 58 特性繼承自 QWidget
• 1 特性繼承自 QObject

公共函數

	SeekSlider (QWidget * parent = 0)
	SeekSlider (MediaObject * media , QWidget * parent = 0)
	~SeekSlider ()
bool	hasTracking () const
QSize	iconSize () const
bool	isIconVisible () const
MediaObject *	mediaObject () const
Qt::Orientation	orientation () const
int	pageStep () const
void	setPageStep (int 毫秒 )
void	setSingleStep (int 毫秒 )
void	setTracking (bool tracking )
int	singleStep () const

• 220 公共函數繼承自 QWidget
• 29 公共函數繼承自 QObject
• 12 公共函數繼承自 QPaintDevice

公共槽

void	setIconSize (const QSize & size )
void	setIconVisible (bool)
void	setMediaObject (MediaObject * media )
void	setOrientation (Qt::Orientation)

• 19 公共槽繼承自 QWidget
• 1 公共槽繼承自 QObject

額外繼承成員

• 1 信號繼承自 QWidget
• 1 信號繼承自 QObject
• 4 static public members inherited from QWidget
• 7 靜態公共成員繼承自 QObject
• 37 保護函數繼承自 QWidget
• 8 保護函數繼承自 QObject
• 1 保護函數繼承自 QPaintDevice
• 1 保護槽繼承自 QWidget

詳細描述

The SeekSlider class provides a slider for seeking to positions in media streams.

The SeekSlider connects to a MediaObject , and controls the seek position in the object's media stream.

The slider will connect to the necessary signals to keep track of the sliders maximum, minimum, and current values. It will also disable itself for non-seekable streams, and update the media object when the current value of the slider changes.

Here follows a typical example of SeekSlider usage:

    Phonon::MediaObject *moo = new Phonon::MediaObject;;
    Phonon::AudioOutput *device = new Phonon::AudioOutput;
    Phonon::createPath(moo, device);
    moo->setCurrentSource(QString("/home/gvatteka/Music/Lumme-Badloop.ogg"));
    Phonon::SeekSlider *slider = new Phonon::SeekSlider;
    slider->setMediaObject(moo);
    slider->show();
    moo->play();
					

另請參閱 Phonon::VolumeSlider , Phonon::VideoWidget , 音樂播放器範例 ，和 Phonon 模塊 .

特性文檔編製

iconSize : QSize

This property holds the icon size used for the mute button/icon.

The default size is defined by the GUI style.

訪問函數：

QSize	iconSize () const
void	setIconSize (const QSize & size )

iconVisible : bool

This property holds whether the icon next to the slider is visible.

By default the icon is visible if the platform provides an icon; else it's hidden.

訪問函數：

bool	isIconVisible () const
void	setIconVisible (bool)

orientation : Qt::Orientation

This property holds the orientation of the slider.

取嚮必須是 Qt::Vertical or Qt::Horizontal (the default).

訪問函數：

Qt::Orientation	orientation () const
void	setOrientation (Qt::Orientation)

pageStep : int

This property holds the page step interval.

The larger of two natural steps that a slider provides and typically corresponds to the user pressing PageUp or PageDown.

Defaults to 5 seconds.

訪問函數：

int	pageStep () const
void	setPageStep (int 毫秒 )

singleStep : int

This property holds the single step interval.

The smaller of two natural steps that a slider provides and typically corresponds to the user pressing an arrow key.

Defaults to 0.5 seconds.

訪問函數：

int	singleStep () const
void	setSingleStep (int 毫秒 )

tracking : bool

This property holds whether slider tracking is enabled.

If tracking is enabled (the default), the media seeks while the slider is being dragged. If tracking is disabled, the media seeks only when the user releases the slider.

訪問函數：

bool	hasTracking () const
void	setTracking (bool tracking )

成員函數文檔編製

SeekSlider:: SeekSlider ( QWidget * parent = 0)

Constructs a seek slider widget with the given parent .

SeekSlider:: SeekSlider ( MediaObject * media , QWidget * parent = 0)

Constructs a seek slider widget for the specified media 采用給定 parent .

SeekSlider:: ~SeekSlider ()

Destroys the seek slider.

MediaObject * SeekSlider:: mediaObject () const

Return the media object this SeekSlider controls.

另請參閱 setMediaObject ().

[slot] void SeekSlider:: setMediaObject ( MediaObject * media )

Sets the media object to be controlled by this slider to the media 指定。

另請參閱 mediaObject ().