The Thermometer Widget 更多...

#include <qwt_thermo.h>

类 QwtThermo 继承关系图:

类
class	PrivateData

Public 类型
enum	ScalePosition { NoScale , LeadingScale , TrailingScale }
	Position of the scale 更多...

enum	OriginMode { OriginMinimum , OriginMaximum , OriginCustom }
	Origin mode. This property specifies where the beginning of the liquid is placed. 更多...

Public 槽
virtual void	setValue (double)
	Set the current value

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

void	setOrientation (Qt::Orientation)
	Set the orientation

Qt::Orientation	orientation () const
	Return orientation

void	setScalePosition (ScalePosition)
	Change the position of the scale

ScalePosition	scalePosition () const
	Return scale position

void	setSpacing (int)
	Change the spacing between pipe and scale

int	spacing () const
	Return number of pixels between pipe and scale

void	setBorderWidth (int)
	Set the border width of the pipe

int	borderWidth () const
	Return border width of the thermometer pipe

void	setOriginMode (OriginMode)
	Change how the origin is determined

OriginMode	originMode () const
	Return mode how the origin is determined

void	setOrigin (double)
	Specify the custom origin

double	origin () const
	Return origin of the thermometer when OriginCustom is enabled

void	setFillBrush (const QBrush &)
	Change the brush of the liquid

QBrush	fillBrush () const
	Return liquid (QPalette::ButtonText) brush

void	setAlarmBrush (const QBrush &)
	Specify the liquid brush above the alarm threshold

QBrush	alarmBrush () const
	Return liquid brush (QPalette::Highlight) above the alarm threshold

void	setAlarmLevel (double)
	Specify the alarm threshold

double	alarmLevel () const
	Return alarm threshold

void	setAlarmEnabled (bool)
	Enable or disable the alarm threshold

bool	alarmEnabled () const
	Return true when the alarm threshold is enabled

void	setColorMap (QwtColorMap *)
	Assign a color map for the fill color

QwtColorMap *	colorMap ()
	Return color map for the fill color

const QwtColorMap *	colorMap () const
	Return color map for the fill color (const version)

void	setPipeWidth (int)
	Change the width of the pipe

int	pipeWidth () const
	Return width of the pipe

void	setFlatStyle (bool)
	Set flat style

bool	flatStyle () const
	Return whether flat style is enabled

void	setRangeFlags (QwtInterval::BorderFlags)
	Exclude/Include min/max values

QwtInterval::BorderFlags	rangeFlags () const
	Return range flags

double	value () const
	Return the value

virtual QSize	sizeHint () const override
	Return the minimum size hint

virtual QSize	minimumSizeHint () const override
	Return minimum size hint

void	setScaleDraw (QwtScaleDraw *)
	Set a scale draw

const QwtScaleDraw *	scaleDraw () const
	Return the scale draw of the thermometer (const version)

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

void	setScale (double lowerBound, double upperBound)
	Specify a scale by interval bounds

void	setScale (const QwtInterval &)
	Specify a scale by interval

void	setScale (const QwtScaleDiv &)
	Specify a scale by scale division

const QwtScaleDiv &	scaleDiv () const
	Return the scale division

void	setLowerBound (double value)
	Set the lower bound of the scale

double	lowerBound () const
	Return the lower bound of the scale

void	setUpperBound (double value)
	Set the upper bound of the scale

double	upperBound () const
	Return the upper bound of the scale

void	setScaleStepSize (double stepSize)
	Set the step size used for calculating scale division

double	scaleStepSize () const
	Return the step size hint

void	setScaleMaxMajor (int ticks)
	Set the maximum number of major tick intervals

int	scaleMaxMinor () const
	Return the maximum number of minor tick intervals

void	setScaleMaxMinor (int ticks)
	Set the maximum number of minor tick intervals

int	scaleMaxMajor () const
	Return the maximum number of major tick intervals

void	setScaleEngine (QwtScaleEngine *)
	Set the scale engine

const QwtScaleEngine *	scaleEngine () const
	Return the scale engine (const version)

QwtScaleEngine *	scaleEngine ()
	Return the scale engine (non-const version)

int	transform (double) const
	Transform a scale value to widget coordinates

double	invTransform (int) const
	Transform a widget coordinate to scale value

bool	isInverted () const
	Check if scale is inverted

double	minimum () const
	Return the minimum boundary

double	maximum () const
	Return the maximum boundary

const QwtScaleMap &	scaleMap () const
	Return the scale map

Protected 成员函数
virtual void	drawLiquid (QPainter *, const QRect &) const
	Draw the liquid

virtual void	scaleChange () override
	Handle scale changes

virtual void	paintEvent (QPaintEvent *) override
	Handle paint events

virtual void	resizeEvent (QResizeEvent *) override
	Handle resize events

virtual void	changeEvent (QEvent *) override
	Handle change events

QwtScaleDraw *	scaleDraw ()
	Return the scale draw

QRect	pipeRect () const
	Return the pipe rectangle

QRect	fillRect (const QRect &) const
	Return the fill rectangle

QRect	alarmRect (const QRect &) const
	Return the alarm rectangle

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

OriginMode	originMode

bool	alarmEnabled

double	alarmLevel

double	origin

int	spacing

int	borderWidth

int	pipeWidth

bool	flatStyle

double	value

属性继承自 QwtAbstractScale
double	lowerBound

double	upperBound

int	scaleMaxMajor

int	scaleMaxMinor

double	scaleStepSize

详细描述

The Thermometer Widget

QwtThermo is a widget which displays a value in an interval. It supports:

a horizontal or vertical layout;
a range;
a scale;
an alarm level. The fill colors might be calculated from an optional color map. If no color map has been assigned QwtThermo uses the following colors/brushes from the widget palette:
QPalette::Base: Background of the pipe
QPalette::ButtonText: Fill brush below the alarm level
QPalette::Highlight: Fill brush for the values above the alarm level
QPalette::WindowText: For the axis of the scale
QPalette::Text: For the labels of the scale
参见
QwtAbstractScale

成员枚举类型说明

◆ OriginMode

enum QwtThermo::OriginMode

Origin mode. This property specifies where the beginning of the liquid is placed.

参见: setOriginMode(), setOrigin()

枚举值
OriginMinimum	The origin is the minimum of the scale
OriginMaximum	The origin is the maximum of the scale
OriginCustom	The origin is specified using the origin() property

◆ ScalePosition

enum QwtThermo::ScalePosition

Position of the scale

参见: setScalePosition(), setOrientation()

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

构造及析构函数说明

◆ QwtThermo()

QwtThermo::QwtThermo ( QWidget * parent = nullptr )

explicit

Constructor

参数

parent Parent widget

参见: ~QwtThermo()

Destructor

参见: QwtThermo()

成员函数说明

◆ alarmBrush()

QBrush QwtThermo::alarmBrush ( ) const

Return liquid brush (QPalette::Highlight) above the alarm threshold

参见: setAlarmBrush(), QWidget::palette()

警告: The alarm threshold has no effect when a color map has been assigned

◆ alarmEnabled()

bool QwtThermo::alarmEnabled ( ) const

Return true when the alarm threshold is enabled

参见: setAlarmEnabled()

警告: The alarm threshold has no effect when a color map has been assigned

◆ alarmLevel()

double QwtThermo::alarmLevel ( ) const

Return alarm threshold

参见: setAlarmLevel()

警告: The alarm threshold has no effect when a color map has been assigned

◆ alarmRect()

QRect QwtThermo::alarmRect ( const QRect & fillRect ) const

protected

Return the alarm rectangle

Calculate the alarm rectangle of the pipe

参数

fillRect Filled rectangle in the pipe

返回: Rectangle to be filled with the alarm brush

参见: pipeRect(), fillRect(), alarmLevel(), alarmBrush()

◆ borderWidth()

int QwtThermo::borderWidth ( ) const

Return border width of the thermometer pipe

参见: setBorderWidth()

◆ changeEvent()

void QwtThermo::changeEvent ( QEvent * event )

overrideprotectedvirtual

Handle change events

Qt change event handler

参数

event Event

参见: paintEvent(), resizeEvent()

重载 QwtAbstractScale .

◆ colorMap() [1/2]

QwtColorMap * QwtThermo::colorMap ( )

Return color map for the fill color

警告: The alarm threshold has no effect when a color map has been assigned

参见: setColorMap()

◆ colorMap() [2/2]

const QwtColorMap * QwtThermo::colorMap ( ) const

Return color map for the fill color (const version)

警告: The alarm threshold has no effect when a color map has been assigned

参见: setColorMap()

◆ drawLiquid()

void QwtThermo::drawLiquid	(	QPainter *	painter,
		const QRect &	pipeRect
	)		const

protectedvirtual

Draw the liquid

Redraw the liquid in thermometer pipe

参数

painter	Painter
pipeRect	Bounding rectangle of the pipe without borders

参见: pipeRect(), fillRect(), alarmRect()

◆ fillBrush()

QBrush QwtThermo::fillBrush ( ) const

Return liquid (QPalette::ButtonText) brush

参见: setFillBrush(), QWidget::palette()

◆ fillRect()

QRect QwtThermo::fillRect ( const QRect & pipeRect ) const

protected

Return the fill rectangle

Calculate the filled rectangle of the pipe

参数

pipeRect Rectangle of the pipe

返回: Rectangle to be filled (fill and alarm brush)

参见: pipeRect(), alarmRect()

◆ flatStyle()

bool QwtThermo::flatStyle ( ) const

Return whether flat style is enabled

参见: setFlatStyle()

◆ minimumSizeHint()

QSize QwtThermo::minimumSizeHint ( ) const

overridevirtual

Return minimum size hint

The return value depends on the font and the scale.

参见: sizeHint()

◆ orientation()

Qt::Orientation QwtThermo::orientation ( ) const

Return orientation

参见: setOrientation()

◆ origin()

double QwtThermo::origin ( ) const

Return origin of the thermometer when OriginCustom is enabled

参见: setOrigin(), setOriginMode(), originMode()

◆ originMode()

QwtThermo::OriginMode QwtThermo::originMode ( ) const

Return mode how the origin is determined

参见: setOriginMode(), setOrigin(), origin()

◆ paintEvent()

void QwtThermo::paintEvent ( QPaintEvent * event )

overrideprotectedvirtual

Handle paint events

Paint event handler

参数

event Paint event

参见: resizeEvent(), changeEvent()

◆ pipeRect()

QRect QwtThermo::pipeRect ( ) const

protected

Return the pipe rectangle

Return bounding rectangle of the pipe

返回: Bounding rectangle of the pipe (without borders) in widget coordinates

参见: fillRect(), alarmRect()

◆ pipeWidth()

int QwtThermo::pipeWidth ( ) const

Return width of the pipe

参见: setPipeWidth()

◆ rangeFlags()

QwtInterval::BorderFlags QwtThermo::rangeFlags ( ) const

Return range flags

参见: setRangeFlags()

◆ resizeEvent()

void QwtThermo::resizeEvent ( QResizeEvent * event )

overrideprotectedvirtual

Handle resize events

Resize event handler

参数

event Resize event

参见: paintEvent(), layoutThermo()

◆ scaleChange()

void QwtThermo::scaleChange ( )

overrideprotectedvirtual

Handle scale changes

Notify a scale change

参见: scaleChange()

重载 QwtAbstractScale .

◆ scaleDraw() [1/2]

QwtScaleDraw * QwtThermo::scaleDraw ( )

protected

Return the scale draw

Return the scale draw of the thermometer (non-const version)

参见: setScaleDraw()

◆ scaleDraw() [2/2]

const QwtScaleDraw * QwtThermo::scaleDraw ( ) const

Return the scale draw of the thermometer (const version)

参见: setScaleDraw()

◆ scalePosition()

QwtThermo::ScalePosition QwtThermo::scalePosition ( ) const

Return scale position

参见: setScalePosition()

◆ setAlarmBrush()

void QwtThermo::setAlarmBrush ( const QBrush & brush )

Specify the liquid brush above the alarm threshold

Changes the QPalette::Highlight brush of the palette.

参数

brush New brush

参见: alarmBrush(), QWidget::setPalette()

警告: The alarm threshold has no effect when a color map has been assigned

◆ setAlarmEnabled()

void QwtThermo::setAlarmEnabled ( bool on )

Enable or disable the alarm threshold

参数

on	True to enable, false to disable

参见: alarmEnabled()

警告: The alarm threshold has no effect when a color map has been assigned

◆ setAlarmLevel()

void QwtThermo::setAlarmLevel ( double level )

Specify the alarm threshold

参数

level Alarm threshold

参见: alarmLevel()

警告: The alarm threshold has no effect when a color map has been assigned

◆ setBorderWidth()

void QwtThermo::setBorderWidth ( int width )

Set the border width of the pipe

参数

width Border width

参见: borderWidth()

◆ setColorMap()

void QwtThermo::setColorMap ( QwtColorMap * colorMap )

Assign a color map for the fill color

参数

colorMap Color map

警告: The alarm threshold has no effect when a color map has been assigned

参见: colorMap()

◆ setFillBrush()

void QwtThermo::setFillBrush ( const QBrush & brush )

Change the brush of the liquid

Changes the QPalette::ButtonText brush of the palette.

参数

brush New brush

参见: fillBrush(), QWidget::setPalette()

◆ setFlatStyle()

void QwtThermo::setFlatStyle ( bool on )

Set flat style

When enabled (default), the pipe border is drawn with a flat solid-color line instead of a 3D embossed effect (qDrawShadePanel).

参数

on	true for flat style, false for classic 3D style

参见: flatStyle()

◆ setOrientation()

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

Set the orientation

参数

orientation Allowed values are Qt::Horizontal and Qt::Vertical

参见: orientation(), scalePosition()

◆ setOrigin()

void QwtThermo::setOrigin ( double origin )

Specify the custom origin

If originMode is set to OriginCustom this property controls where the liquid starts.

参数

origin New origin level

参见: setOriginMode(), originMode(), origin()

◆ setOriginMode()

void QwtThermo::setOriginMode ( OriginMode m )

Change how the origin is determined

参见: originMode(), setOrigin(), origin()

◆ setPipeWidth()

void QwtThermo::setPipeWidth ( int width )

Change the width of the pipe

参数

width Width of the pipe

参见: pipeWidth()

◆ setRangeFlags()

void QwtThermo::setRangeFlags ( QwtInterval::BorderFlags flags )

Exclude/Include min/max values

According to the flags minValue() and maxValue() are included/excluded from the pipe. In case of an excluded value the corresponding tick is painted 1 pixel off of the pipeRect(). For example, when a minimum of 0.0 has to be displayed as an empty pipe, the minValue() needs to be excluded.

参数

flags Range flags

参见: rangeFlags()

◆ setScaleDraw()

void QwtThermo::setScaleDraw ( QwtScaleDraw * scaleDraw )

Set a scale draw

For changing the labels of the scales, it is necessary to derive from QwtScaleDraw and overload QwtScaleDraw::label().

参数

scaleDraw ScaleDraw object that has to be created with new and will be deleted in ~QwtThermo() or the next call of setScaleDraw()

参见: scaleDraw(), QwtScaleDraw

◆ setScalePosition()

void QwtThermo::setScalePosition ( ScalePosition scalePosition )

Change the position of the scale

参数

scalePosition Position of the scale

参见: ScalePosition, scalePosition()

◆ setSpacing()

void QwtThermo::setSpacing ( int spacing )

Change the spacing between pipe and scale

A spacing of 0 means that the backbone of the scale is below the pipe. The default setting is 3 pixels.

参数

spacing Number of pixels

参见: spacing()

◆ setValue

void QwtThermo::setValue ( double value )

virtualslot

Set the current value

参数

value New value

参见: value()

◆ sizeHint()

QSize QwtThermo::sizeHint ( ) const

overridevirtual

Return the minimum size hint

参见: minimumSizeHint()

◆ spacing()

int QwtThermo::spacing ( ) const

Return number of pixels between pipe and scale

参见: setSpacing()

◆ value()

double QwtThermo::value ( ) const

Return the value

参见: setValue()

该类的文档由以下文件生成:

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

类

Public 类型

Public 槽

Public 成员函数

Protected 成员函数

属性

详细描述

成员枚举类型说明

◆ OriginMode

◆ ScalePosition

构造及析构函数说明

◆ QwtThermo()

成员函数说明

◆ alarmBrush()

◆ alarmEnabled()

◆ alarmLevel()

◆ alarmRect()

◆ borderWidth()

◆ changeEvent()

◆ colorMap() [1/2]

◆ colorMap() [2/2]

◆ drawLiquid()

◆ fillBrush()

◆ fillRect()

◆ flatStyle()

◆ minimumSizeHint()

◆ orientation()

◆ origin()

◆ originMode()

◆ paintEvent()

◆ pipeRect()

◆ pipeWidth()

◆ rangeFlags()

◆ resizeEvent()

◆ scaleChange()

◆ scaleDraw() [1/2]

◆ scaleDraw() [2/2]

◆ scalePosition()

◆ setAlarmBrush()

◆ setAlarmEnabled()

◆ setAlarmLevel()

◆ setBorderWidth()

◆ setColorMap()

◆ setFillBrush()

◆ setFlatStyle()

◆ setOrientation()

◆ setOrigin()

◆ setOriginMode()

◆ setPipeWidth()

◆ setRangeFlags()

◆ setScaleDraw()

◆ setScalePosition()

◆ setSpacing()

◆ setValue

◆ sizeHint()

◆ spacing()

◆ value()