#include <qwt_slider.h>

类 QwtSlider 继承关系图:

类
class	PrivateData

Public 类型
enum	ScalePosition { NoScale , LeadingScale , TrailingScale }
	刻度位置更多...

Public 成员函数
	QwtSlider (QWidget *parent=nullptr)
	Constructor

	QwtSlider (Qt::Orientation, QWidget *parent=nullptr)
	Constructor with orientation

virtual	~QwtSlider ()
	Destructor

void	setOrientation (Qt::Orientation)
	Set orientation

Qt::Orientation	orientation () const
	Return orientation

void	setScalePosition (ScalePosition)
	Set scale position

ScalePosition	scalePosition () const
	Return scale position

void	setTrough (bool)
	Enable/disable trough

bool	hasTrough () const
	Check if has trough

void	setGroove (bool)
	Enable/disable groove

bool	hasGroove () const
	Check if has groove

void	setHandleSize (const QSize &)
	Set handle size

QSize	handleSize () const
	Return handle size

void	setBorderWidth (int)
	Set border width

int	borderWidth () const
	Return border width

void	setSpacing (int)
	Set spacing

int	spacing () const
	Return spacing

virtual QSize	sizeHint () const override
	Return size hint

virtual QSize	minimumSizeHint () const override
	Return minimum size hint

void	setScaleDraw (QwtScaleDraw *)
	Set scale draw

const QwtScaleDraw *	scaleDraw () const
	Return scale draw (const version)

void	setUpdateInterval (int)
	Set update interval

int	updateInterval () const
	Return update interval

Public 成员函数继承自 QwtAbstractSlider
	QwtAbstractSlider (QWidget *parent=nullptr)
	Constructor for QwtAbstractSlider (English only)

virtual	~QwtAbstractSlider ()
	Destructor for QwtAbstractSlider (English only)

void	setValid (bool)
	Set whether the slider is valid (English only)

bool	isValid () const
	Return whether the slider is valid (English only)

double	value () const
	Return the current value (English only)

void	setWrapping (bool)
	Set whether wrapping is enabled (English only)

bool	wrapping () const
	Return whether wrapping is enabled (English only)

void	setTotalSteps (uint)
	Set the total number of steps (English only)

uint	totalSteps () const
	Return the total number of steps (English only)

void	setSingleSteps (uint)
	Set the number of single steps (English only)

uint	singleSteps () const
	Return the number of single steps (English only)

void	setPageSteps (uint)
	Set the number of page steps (English only)

uint	pageSteps () const
	Return the number of page steps (English only)

void	setStepAlignment (bool)
	Set whether step alignment is enabled (English only)

bool	stepAlignment () const
	Return whether step alignment is enabled (English only)

void	setTracking (bool)
	Set whether tracking is enabled (English only)

bool	isTracking () const
	Return whether tracking is enabled (English only)

void	setReadOnly (bool)
	Set whether the slider is read-only (English only)

bool	isReadOnly () const
	Return whether the slider is read-only (English only)

void	setInvertedControls (bool)
	Set whether controls are inverted (English only)

bool	invertedControls () const
	Return whether controls are inverted (English only)

Public 成员函数继承自 QwtAbstractScale
	QwtAbstractScale (QWidget *parent=nullptr)
	QwtAbstractScale 构造函数

virtual	~QwtAbstractScale ()
	QwtAbstractScale 析构函数

void	setScale (double lowerBound, double upperBound)
	通过区间边界指定刻度

void	setScale (const QwtInterval &)
	通过区间对象指定刻度

void	setScale (const QwtScaleDiv &)
	通过刻度划分指定刻度

const QwtScaleDiv &	scaleDiv () const
	返回刻度划分

void	setLowerBound (double value)
	设置刻度的下界

double	lowerBound () const
	返回刻度的下界

void	setUpperBound (double value)
	设置刻度的上界

double	upperBound () const
	返回刻度的上界

void	setScaleStepSize (double stepSize)
	设置用于计算刻度划分的步长

double	scaleStepSize () const
	返回步长提示值

void	setScaleMaxMajor (int ticks)
	设置主刻度间隔的最大数量

int	scaleMaxMinor () const
	返回次刻度间隔的最大数量

void	setScaleMaxMinor (int ticks)
	设置次刻度间隔的最大数量

int	scaleMaxMajor () const
	返回主刻度间隔的最大数量

void	setScaleEngine (QwtScaleEngine *)
	设置刻度引擎

const QwtScaleEngine *	scaleEngine () const
	返回刻度引擎（常量版本）

QwtScaleEngine *	scaleEngine ()
	返回刻度引擎（非常量版本）

int	transform (double) const
	将刻度值转换为控件坐标

double	invTransform (int) const
	将控件坐标转换为刻度值

bool	isInverted () const
	检查刻度是否反向

double	minimum () const
	返回最小边界

double	maximum () const
	返回最大边界

const QwtScaleMap &	scaleMap () const
	返回刻度映射

Protected 成员函数
virtual double	scrolledTo (const QPoint &) const override
	Calculate scrolled position

virtual bool	isScrollPosition (const QPoint &) const override
	Check if position is scroll position

virtual void	drawSlider (QPainter *, const QRect &) const
	Draw slider

virtual void	drawHandle (QPainter *, const QRect &, int pos) const
	Draw handle

virtual void	mousePressEvent (QMouseEvent *) override
	Mouse press event

virtual void	mouseReleaseEvent (QMouseEvent *) override
	Mouse release event

virtual void	resizeEvent (QResizeEvent *) override
	Resize event

virtual void	paintEvent (QPaintEvent *) override
	Paint event

virtual void	changeEvent (QEvent *) override
	Change event

virtual void	timerEvent (QTimerEvent *) override
	Timer event

virtual bool	event (QEvent *) override
	Event handler

virtual void	scaleChange () override
	Scale change notification

QRect	sliderRect () const
	Return slider rectangle

QRect	handleRect () const
	Return handle rectangle

Protected 成员函数继承自 QwtAbstractSlider
virtual void	mouseMoveEvent (QMouseEvent *) override
	Handle mouse move events (English only)

virtual void	keyPressEvent (QKeyEvent *) override
	Handle key press events (English only)

virtual void	wheelEvent (QWheelEvent *) override
	Handle wheel events (English only)

void	incrementValue (int stepCount)
	Increment the value by a number of steps (English only)

virtual void	sliderChange ()
	Handle slider changes (English only)

double	incrementedValue (double value, int stepCount) const
	Calculate incremented value (English only)

Protected 成员函数继承自 QwtAbstractScale
void	rescale (double lowerBound, double upperBound, double stepSize)
	Recalculate scale and update scale draw (English only)

void	setAbstractScaleDraw (QwtAbstractScaleDraw *)
	Set the scale draw object (English only)

const QwtAbstractScaleDraw *	abstractScaleDraw () const
	Return the scale draw (const version) (English only)

QwtAbstractScaleDraw *	abstractScaleDraw ()
	Return the scale draw (non-const version) (English only)

void	updateScaleDraw ()
	Update the scale draw (English only)

属性
Qt::Orientation	orientation

ScalePosition	scalePosition

bool	trough

bool	groove

QSize	handleSize

int	borderWidth

int	spacing

属性继承自 QwtAbstractSlider
double	value

uint	totalSteps

uint	singleSteps

uint	pageSteps

bool	stepAlignment

bool	readOnly

bool	tracking

bool	wrapping

bool	invertedControls

属性继承自 QwtAbstractScale
double	lowerBound

double	upperBound

int	scaleMaxMajor

int	scaleMaxMinor

double	scaleStepSize

额外继承的成员函数
Public 槽继承自 QwtAbstractSlider
void	setValue (double value)
	Set the slider value (English only)

信号继承自 QwtAbstractSlider
void	valueChanged (double value)
	通知值变化

void	sliderPressed ()
	当用户按下滑块的可移动部分时发出的信号

void	sliderReleased ()
	当用户释放滑块的可移动部分时发出的信号

void	sliderMoved (double value)
	当用户用鼠标移动滑块时发出的信号

详细描述

滑块控件

成员枚举类型说明

◆ ScalePosition

enum QwtSlider::ScalePosition

刻度位置

枚举值
NoScale	The slider has no scale
LeadingScale	The scale is right of a vertical or below a horizontal slider
TrailingScale	The scale is left of a vertical or above a horizontal slider

构造及析构函数说明

◆ QwtSlider() [1/2]

QwtSlider::QwtSlider ( QWidget * parent = nullptr )

explicit

Constructor

构造垂直滑块 (QwtSlider::Trough 样式)

◆ QwtSlider() [2/2]

QwtSlider::QwtSlider	(	Qt::Orientation	orientation,
		QWidget *	parent = `nullptr`
	)

explicit

Constructor with orientation

构造滑块 (QwtSlider::Trough 样式)

◆ ~QwtSlider()

QwtSlider::~QwtSlider ( )

virtual

Destructor

析构函数

成员函数说明

◆ borderWidth()

int QwtSlider::borderWidth ( ) const

Return border width

返回边框宽度

◆ changeEvent()

void QwtSlider::changeEvent ( QEvent * event )

overrideprotectedvirtual

Change event

重载 QwtAbstractScale .

◆ handleSize()

QSize QwtSlider::handleSize ( ) const

Return handle size

返回手柄大小

◆ hasGroove()

bool QwtSlider::hasGroove ( ) const

Check if has groove

当凹槽可见时返回 true

◆ hasTrough()

bool QwtSlider::hasTrough ( ) const

Check if has trough

当槽可见时返回 true

◆ isScrollPosition()

bool QwtSlider::isScrollPosition ( const QPoint & pos ) const

overrideprotectedvirtual

Check if position is scroll position

实现了 QwtAbstractSlider.

◆ minimumSizeHint()

QSize QwtSlider::minimumSizeHint ( ) const

overridevirtual

Return minimum size hint

返回最小大小提示

◆ mousePressEvent()

void QwtSlider::mousePressEvent ( QMouseEvent * event )

overrideprotectedvirtual

Mouse press event

重载 QwtAbstractSlider .

◆ mouseReleaseEvent()

void QwtSlider::mouseReleaseEvent ( QMouseEvent * event )

overrideprotectedvirtual

Mouse release event

重载 QwtAbstractSlider .

◆ orientation()

Qt::Orientation QwtSlider::orientation ( ) const

Return orientation

返回方向

◆ scaleChange()

void QwtSlider::scaleChange ( )

overrideprotectedvirtual

Scale change notification

重载 QwtAbstractSlider .

◆ scaleDraw()

const QwtScaleDraw * QwtSlider::scaleDraw ( ) const

Return scale draw (const version)

返回滑块的刻度绘制器 (const 版本)

◆ scalePosition()

QwtSlider::ScalePosition QwtSlider::scalePosition ( ) const

Return scale position

返回刻度位置

◆ scrolledTo()

double QwtSlider::scrolledTo ( const QPoint & pos ) const

overrideprotectedvirtual

Calculate scrolled position

实现了 QwtAbstractSlider.

◆ setBorderWidth()

void QwtSlider::setBorderWidth ( int width )

Set border width

更改滑块的边框宽度

◆ setGroove()

void QwtSlider::setGroove ( bool on )

Enable/disable groove

启用/禁用凹槽

◆ setHandleSize()

void QwtSlider::setHandleSize ( const QSize & size )

Set handle size

设置滑块手柄大小

◆ setOrientation()

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

Set orientation

设置方向

◆ setScaleDraw()

void QwtSlider::setScaleDraw ( QwtScaleDraw * scaleDraw )

Set scale draw

设置刻度绘制器

◆ setScalePosition()

void QwtSlider::setScalePosition ( ScalePosition scalePosition )

Set scale position

更改刻度位置

◆ setSpacing()

void QwtSlider::setSpacing ( int spacing )

Set spacing

更改槽和刻度之间的间距

◆ setTrough()

void QwtSlider::setTrough ( bool on )

Enable/disable trough

启用/禁用槽

◆ setUpdateInterval()

void QwtSlider::setUpdateInterval ( int interval )

Set update interval

指定自动刷新的更新间隔

◆ sizeHint()

QSize QwtSlider::sizeHint ( ) const

overridevirtual

Return size hint

返回大小提示

◆ spacing()

int QwtSlider::spacing ( ) const

Return spacing

返回滑块和刻度之间的像素数

◆ updateInterval()

int QwtSlider::updateInterval ( ) const

Return update interval

返回自动刷新的更新间隔 (毫秒)

该类的文档由以下文件生成:

/home/runner/work/QWT/QWT/src/plot/qwt_slider.h
/home/runner/work/QWT/QWT/src/plot/qwt_slider.cpp

类

Public 类型

Public 成员函数

Protected 成员函数

属性

额外继承的成员函数

详细描述

成员枚举类型说明

◆ ScalePosition

构造及析构函数说明

◆ QwtSlider() [1/2]

◆ QwtSlider() [2/2]

◆ ~QwtSlider()

成员函数说明

◆ borderWidth()

◆ changeEvent()

◆ handleSize()

◆ hasGroove()

◆ hasTrough()

◆ isScrollPosition()

◆ minimumSizeHint()

◆ mousePressEvent()

◆ mouseReleaseEvent()

◆ orientation()

◆ scaleChange()

◆ scaleDraw()

◆ scalePosition()

◆ scrolledTo()

◆ setBorderWidth()

◆ setGroove()

◆ setHandleSize()

◆ setOrientation()

◆ setScaleDraw()

◆ setScalePosition()

◆ setSpacing()

◆ setTrough()

◆ setUpdateInterval()

◆ sizeHint()

◆ spacing()

◆ updateInterval()