带刻度的滑块控件的抽象基类更多...

#include <qwt_abstract_slider.h>

类 QwtAbstractSlider 继承关系图:

类
class	PrivateData

Public 槽
void	setValue (double value)
	Set the slider value (English only)

信号
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

Public 成员函数
	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 void	mousePressEvent (QMouseEvent *) override
	Handle mouse press events (English only)

virtual void	mouseReleaseEvent (QMouseEvent *) override
	Handle mouse release events (English only)

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)

virtual bool	isScrollPosition (const QPoint &pos) const =0
	确定当用户按下鼠标按钮时该做什么

virtual double	scrolledTo (const QPoint &pos) const =0
	确定滑块可移动部分新位置的值

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

virtual void	scaleChange () override
	Handle scale changes (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
virtual void	changeEvent (QEvent *) override
	Handle change events (English only)

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
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

详细描述

带刻度的滑块控件的抽象基类

构造及析构函数说明

◆ QwtAbstractSlider()

QwtAbstractSlider::QwtAbstractSlider ( QWidget * parent = nullptr )

explicit

Constructor for QwtAbstractSlider (English only)

QwtAbstractSlider 构造函数

◆ ~QwtAbstractSlider()

QwtAbstractSlider::~QwtAbstractSlider ( )

virtual

Destructor for QwtAbstractSlider (English only)

QwtAbstractSlider 析构函数

成员函数说明

◆ incrementedValue()

double QwtAbstractSlider::incrementedValue	(	double	value,
		int	stepCount
	)		const

protected

Calculate incremented value (English only)

增量一个值

◆ incrementValue()

void QwtAbstractSlider::incrementValue ( int stepCount )

protected

Increment the value by a number of steps (English only)

增量滑块

◆ invertedControls()

bool QwtAbstractSlider::invertedControls ( ) const

Return whether controls are inverted (English only)

检查控制是否被反转

◆ isReadOnly()

bool QwtAbstractSlider::isReadOnly ( ) const

Return whether the slider is read-only (English only)

检查是否启用了只读模式

◆ isScrollPosition()

virtual bool QwtAbstractSlider::isScrollPosition ( const QPoint & pos ) const

protectedpure virtual

确定当用户按下鼠标按钮时该做什么

在 QwtDial, QwtKnob , 以及 QwtSlider 内被实现.

◆ isTracking()

bool QwtAbstractSlider::isTracking ( ) const

Return whether tracking is enabled (English only)

检查是否启用了跟踪

◆ isValid()

bool QwtAbstractSlider::isValid ( ) const

Return whether the slider is valid (English only)

检查值是否有效

◆ keyPressEvent()

void QwtAbstractSlider::keyPressEvent ( QKeyEvent * event )

overrideprotectedvirtual

Handle key press events (English only)

处理键盘按下事件

被 QwtCompass 重载.

◆ mouseMoveEvent()

void QwtAbstractSlider::mouseMoveEvent ( QMouseEvent * event )

overrideprotectedvirtual

Handle mouse move events (English only)

处理鼠标移动事件

◆ mousePressEvent()

void QwtAbstractSlider::mousePressEvent ( QMouseEvent * event )

overrideprotectedvirtual

Handle mouse press events (English only)

处理鼠标按下事件

被 QwtSlider 重载.

◆ mouseReleaseEvent()

void QwtAbstractSlider::mouseReleaseEvent ( QMouseEvent * event )

overrideprotectedvirtual

Handle mouse release events (English only)

处理鼠标释放事件

被 QwtSlider 重载.

◆ pageSteps()

uint QwtAbstractSlider::pageSteps ( ) const

Return the number of page steps (English only)

返回页步数

◆ scaleChange()

void QwtAbstractSlider::scaleChange ( )

overrideprotectedvirtual

Handle scale changes (English only)

根据刻度修改更新滑块

重载 QwtAbstractScale .

被 QwtDial , 以及 QwtSlider 重载.

◆ scrolledTo()

virtual double QwtAbstractSlider::scrolledTo ( const QPoint & pos ) const

protectedpure virtual

确定滑块可移动部分新位置的值

在 QwtDial, QwtKnob , 以及 QwtSlider 内被实现.

◆ setInvertedControls()

void QwtAbstractSlider::setInvertedControls ( bool on )

Set whether controls are inverted (English only)

反转滚轮和键盘事件

◆ setPageSteps()

void QwtAbstractSlider::setPageSteps ( uint stepCount )

Set the number of page steps (English only)

设置页步数

◆ setReadOnly()

void QwtAbstractSlider::setReadOnly ( bool on )

Set whether the slider is read-only (English only)

启用或禁用只读模式

◆ setSingleSteps()

void QwtAbstractSlider::setSingleSteps ( uint stepCount )

Set the number of single steps (English only)

设置单步增量步数

◆ setStepAlignment()

void QwtAbstractSlider::setStepAlignment ( bool on )

Set whether step alignment is enabled (English only)

启用步对齐

◆ setTotalSteps()

void QwtAbstractSlider::setTotalSteps ( uint stepCount )

Set the total number of steps (English only)

设置步数

◆ setTracking()

void QwtAbstractSlider::setTracking ( bool on )

Set whether tracking is enabled (English only)

启用或禁用跟踪

◆ setValid()

void QwtAbstractSlider::setValid ( bool on )

Set whether the slider is valid (English only)

设置值为有效或无效

◆ setValue

void QwtAbstractSlider::setValue ( double value )

slot

Set the slider value (English only)

将滑块设置为指定值

◆ setWrapping()

void QwtAbstractSlider::setWrapping ( bool on )

Set whether wrapping is enabled (English only)

启用或禁用环绕

◆ singleSteps()

uint QwtAbstractSlider::singleSteps ( ) const

Return the number of single steps (English only)

返回单步数

◆ sliderChange()

void QwtAbstractSlider::sliderChange ( )

protectedvirtual

Handle slider changes (English only)

处理滑块变化

被 QwtDial 重载.

◆ sliderMoved

void QwtAbstractSlider::sliderMoved ( double value )

signal

当用户用鼠标移动滑块时发出的信号

◆ sliderPressed

void QwtAbstractSlider::sliderPressed ( )

signal

当用户按下滑块的可移动部分时发出的信号

◆ sliderReleased

void QwtAbstractSlider::sliderReleased ( )

signal

当用户释放滑块的可移动部分时发出的信号

◆ stepAlignment()

bool QwtAbstractSlider::stepAlignment ( ) const

Return whether step alignment is enabled (English only)

检查是否启用了步对齐

◆ totalSteps()

uint QwtAbstractSlider::totalSteps ( ) const

Return the total number of steps (English only)

返回步数

◆ value()

double QwtAbstractSlider::value ( ) const

Return the current value (English only)

返回当前值

◆ valueChanged

void QwtAbstractSlider::valueChanged ( double value )

signal

通知值变化

◆ wheelEvent()

void QwtAbstractSlider::wheelEvent ( QWheelEvent * event )

overrideprotectedvirtual

Handle wheel events (English only)

处理滚轮事件

被 QwtDial 重载.

◆ wrapping()

bool QwtAbstractSlider::wrapping ( ) const

Return whether wrapping is enabled (English only)

检查是否启用了环绕

该类的文档由以下文件生成:

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

类

Public 槽

信号

Public 成员函数

Protected 成员函数

属性

详细描述

构造及析构函数说明

◆ QwtAbstractSlider()

◆ ~QwtAbstractSlider()

成员函数说明

◆ incrementedValue()

◆ incrementValue()

◆ invertedControls()

◆ isReadOnly()

◆ isScrollPosition()

◆ isTracking()

◆ isValid()

◆ keyPressEvent()

◆ mouseMoveEvent()

◆ mousePressEvent()

◆ mouseReleaseEvent()

◆ pageSteps()

◆ scaleChange()

◆ scrolledTo()

◆ setInvertedControls()

◆ setPageSteps()

◆ setReadOnly()

◆ setSingleSteps()

◆ setStepAlignment()

◆ setTotalSteps()

◆ setTracking()

◆ setValid()

◆ setValue

◆ setWrapping()

◆ singleSteps()

◆ sliderChange()

◆ sliderMoved

◆ sliderPressed

◆ sliderReleased

◆ stepAlignment()

◆ totalSteps()

◆ value()

◆ valueChanged

◆ wheelEvent()

◆ wrapping()