计数器控件更多...

#include <qwt_counter.h>

类 QwtCounter 继承关系图:

类
class	PrivateData

Public 类型
enum	Button { Button1 , Button2 , Button3 , ButtonCnt }
	按钮索引更多...

Public 槽
void	setValue (double)
	设置新值，不调整到步长网格

信号
void	buttonReleased (double value)
	当按钮释放时发出的信号

void	valueChanged (double value)
	当计数器值改变时发出的信号

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

virtual	~QwtCounter ()
	Destructor

void	setValid (bool)
	Set the counter to be in valid/invalid state

bool	isValid () const
	Return true if the value is valid

void	setWrapping (bool)
	Enable or disable wrapping

bool	wrapping () const
	Return true if wrapping is enabled

bool	isReadOnly () const
	Return true if the counter is read only

void	setReadOnly (bool)
	Set the counter to read only mode

void	setNumButtons (int)
	Set the number of buttons on each side

int	numButtons () const
	Return the number of buttons

void	setIncSteps (QwtCounter::Button, int numSteps)
	Set the number of increment steps for a button

int	incSteps (QwtCounter::Button) const
	Return the number of increment steps for a button

virtual QSize	sizeHint () const override
	Return a size hint

double	singleStep () const
	Return the single step size

void	setSingleStep (double stepSize)
	Set the single step size

void	setRange (double min, double max)
	Set the range of the counter

double	minimum () const
	Return the minimum value

void	setMinimum (double)
	Set the minimum value

double	maximum () const
	Return the maximum value

void	setMaximum (double)
	Set the maximum value

void	setStepButton1 (int nSteps)
	Set the number of increment steps for button 1

int	stepButton1 () const
	Return the number of increment steps for button 1

void	setStepButton2 (int nSteps)
	Set the number of increment steps for button 2

int	stepButton2 () const
	Return the number of increment steps for button 2

void	setStepButton3 (int nSteps)
	Set the number of increment steps for button 3

int	stepButton3 () const
	Return the number of increment steps for button 3

double	value () const
	Return the current value

Protected 成员函数
virtual bool	event (QEvent *) override
	Handle QEvent::PolishRequest events

virtual void	wheelEvent (QWheelEvent *) override
	Handle wheel events

virtual void	keyPressEvent (QKeyEvent *) override
	Handle key events

属性
double	value

double	minimum

double	maximum

double	singleStep

int	numButtons

int	stepButton1

int	stepButton2

int	stepButton3

bool	readOnly

bool	wrapping

详细描述

计数器控件

成员枚举类型说明

◆ Button

enum QwtCounter::Button

按钮索引

枚举值
Button1	Button intended for minor steps
Button2	Button intended for medium steps
Button3	Button intended for large steps
ButtonCnt	Number of buttons

构造及析构函数说明

◆ QwtCounter()

QwtCounter::QwtCounter ( QWidget * parent = nullptr )

explicit

Constructor

构造函数

◆ ~QwtCounter()

QwtCounter::~QwtCounter ( )

virtual

Destructor

析构函数

成员函数说明

◆ buttonReleased

void QwtCounter::buttonReleased ( double value )

signal

当按钮释放时发出的信号

◆ event()

bool QwtCounter::event ( QEvent * event )

overrideprotectedvirtual

Handle QEvent::PolishRequest events

参数

event Event

返回: see QWidget::event()

◆ incSteps()

int QwtCounter::incSteps ( QwtCounter::Button button ) const

Return the number of increment steps for a button

返回指定按钮增加值的步数，如果按钮无效则返回 0

◆ isReadOnly()

bool QwtCounter::isReadOnly ( ) const

Return true if the counter is read only

当行编辑器为只读时返回 true

◆ isValid()

bool QwtCounter::isValid ( ) const

Return true if the value is valid

如果值有效则返回 true

◆ keyPressEvent()

void QwtCounter::keyPressEvent ( QKeyEvent * event )

overrideprotectedvirtual

Handle key events

Ctrl + Qt::Key_Home
Step to minimum()
Ctrl + Qt::Key_End
Step to maximum()
Qt::Key_Up
Increment by incSteps(QwtCounter::Button1)
Qt::Key_Down
Decrement by incSteps(QwtCounter::Button1)
Qt::Key_PageUp
Increment by incSteps(QwtCounter::Button2)
Qt::Key_PageDown
Decrement by incSteps(QwtCounter::Button2)
Shift + Qt::Key_PageUp
Increment by incSteps(QwtCounter::Button3)
Shift + Qt::Key_PageDown
Decrement by incSteps(QwtCounter::Button3)

参数

event Key event

◆ maximum()

double QwtCounter::maximum ( ) const

Return the maximum value

返回范围的最大值

◆ minimum()

double QwtCounter::minimum ( ) const

Return the minimum value

返回范围的最小值

◆ numButtons()

int QwtCounter::numButtons ( ) const

Return the number of buttons

返回控件两侧的按钮数量

◆ setIncSteps()

void QwtCounter::setIncSteps	(	QwtCounter::Button	button,
		int	numSteps
	)

Set the number of increment steps for a button

指定按下特定按钮时值增加或减少的步数

◆ setMaximum()

void QwtCounter::setMaximum ( double value )

Set the maximum value

设置范围的最大值

◆ setMinimum()

void QwtCounter::setMinimum ( double value )

Set the minimum value

设置范围的最小值

◆ setNumButtons()

void QwtCounter::setNumButtons ( int numButtons )

Set the number of buttons on each side

指定标签两侧的按钮数量

◆ setRange()

void QwtCounter::setRange	(	double	min,
		double	max
	)

Set the range of the counter

设置最小值和最大值

◆ setReadOnly()

void QwtCounter::setReadOnly ( bool on )

Set the counter to read only mode

允许/禁止用户手动编辑值

◆ setSingleStep()

void QwtCounter::setSingleStep ( double stepSize )

Set the single step size

设置计数器的步长

◆ setStepButton1()

void QwtCounter::setStepButton1 ( int nSteps )

Set the number of increment steps for button 1

设置按钮 1 的增加步数

◆ setStepButton2()

void QwtCounter::setStepButton2 ( int nSteps )

Set the number of increment steps for button 2

设置按钮 2 的增加步数

◆ setStepButton3()

void QwtCounter::setStepButton3 ( int nSteps )

Set the number of increment steps for button 3

设置按钮 3 的增加步数

◆ setValid()

void QwtCounter::setValid ( bool on )

Set the counter to be in valid/invalid state

设置计数器的有效/无效状态

◆ setValue

void QwtCounter::setValue ( double value )

slot

设置新值，不调整到步长网格

◆ setWrapping()

void QwtCounter::setWrapping ( bool on )

Enable or disable wrapping

启用/禁用循环

◆ singleStep()

double QwtCounter::singleStep ( ) const

Return the single step size

返回单步大小

◆ sizeHint()

QSize QwtCounter::sizeHint ( ) const

overridevirtual

Return a size hint

返回尺寸提示

◆ stepButton1()

int QwtCounter::stepButton1 ( ) const

Return the number of increment steps for button 1

返回按钮 1 的增加步数

◆ stepButton2()

int QwtCounter::stepButton2 ( ) const

Return the number of increment steps for button 2

返回按钮 2 的增加步数

◆ stepButton3()

int QwtCounter::stepButton3 ( ) const

Return the number of increment steps for button 3

返回按钮 3 的增加步数

◆ value()

double QwtCounter::value ( ) const

Return the current value

返回计数器的当前值

◆ valueChanged

void QwtCounter::valueChanged ( double value )

signal

当计数器值改变时发出的信号

◆ wheelEvent()

void QwtCounter::wheelEvent ( QWheelEvent * event )

overrideprotectedvirtual

Handle wheel events

参数

event Wheel event

◆ wrapping()

bool QwtCounter::wrapping ( ) const

Return true if wrapping is enabled

当设置了循环时返回 true

该类的文档由以下文件生成:

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

类

Public 类型

Public 槽

信号

Public 成员函数

Protected 成员函数

属性

详细描述

成员枚举类型说明

◆ Button

构造及析构函数说明

◆ QwtCounter()

◆ ~QwtCounter()

成员函数说明

◆ buttonReleased

◆ event()

◆ incSteps()

◆ isReadOnly()

◆ isValid()

◆ keyPressEvent()

◆ maximum()

◆ minimum()

◆ numButtons()

◆ setIncSteps()

◆ setMaximum()

◆ setMinimum()

◆ setNumButtons()

◆ setRange()

◆ setReadOnly()

◆ setSingleStep()

◆ setStepButton1()

◆ setStepButton2()

◆ setStepButton3()

◆ setValid()

◆ setValue

◆ setWrapping()

◆ singleStep()

◆ sizeHint()

◆ stepButton1()

◆ stepButton2()

◆ stepButton3()

◆ value()

◆ valueChanged

◆ wheelEvent()

◆ wrapping()