包含刻度的控件更多...

#include <qwt_scale_widget.h>

类 QwtScaleWidget 继承关系图:

类
class	PrivateData

Public 类型
enum	LayoutFlag { TitleInverted = 1 }
	Layout flags of the title 更多...

enum	BuiltinActions { ActionNone = 0x00 , ActionWheelZoom = 0x01 , ActionClickPan = 0x02 , ActionAll = 0xFF }
	内置的动作更多...

信号
void	scaleDivChanged ()
	当刻度分度发生变化时发出的信号

void	requestScaleRangeUpdate (double min, double max)
	坐标轴主动请求变更刻度范围

void	selectionChanged (bool selected)
	当前轴被选中状态发生变化发射信号

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

	QwtScaleWidget (QwtScaleDraw::Alignment, QWidget *parent=nullptr)
	Constructor with alignment

virtual	~QwtScaleWidget ()
	Destructor

void	setTitle (const QString &title)
	Set the title

void	setTitle (const QwtText &title)
	Set the title

QwtText	title () const
	获取标题

void	setLayoutFlag (LayoutFlag, bool on)
	Set a layout flag

bool	testLayoutFlag (LayoutFlag) const
	测试布局标志

void	setBorderDist (int dist1, int dist2)
	Set the border distances

int	startBorderDist () const
	获取起始边框距离

int	endBorderDist () const
	获取末端边框距离

void	getBorderDistHint (int &start, int &end) const
	Get the border distance hint

void	getMinBorderDist (int &start, int &end) const
	Get the minimum border distances

void	setMinBorderDist (int start, int end)
	Set the minimum border distances

int	startMinBorderDist () const
	获取刻度两端与控件边框的最小距离（左侧或顶部）

int	endMinBorderDist () const
	获取刻度两端与控件边框的最小距离（右侧或底部）

void	setMargin (int)
	Set the margin

int	margin () const
	获取边距

void	setSpacing (int)
	Set the spacing

int	spacing () const
	获取刻度和标题之间的距离

void	setEdgeMargin (int offset)
	Set the edge margin (offset between axis and plot canvas)

int	edgeMargin () const
	获取边缘距离

void	setScaleDiv (const QwtScaleDiv &)
	Set the scale division

void	setTransformation (QwtTransform *)
	Set the transformation

void	setScaleDraw (QwtScaleDraw *)
	Set the scale draw

const QwtScaleDraw *	scaleDraw () const
	获取刻度绘制对象（常量版本）

QwtScaleDraw *	scaleDraw ()
	获取刻度绘制对象

void	setLabelAlignment (Qt::Alignment)
	Set the label alignment

void	setLabelRotation (double rotation)
	Set the label rotation

void	setColorBarEnabled (bool)
	Enable/disable the color bar

bool	isColorBarEnabled () const
	检查颜色条是否已启用

void	setColorBarWidth (int)
	Set the color bar width

int	colorBarWidth () const
	获取颜色条的宽度

void	setColorMap (const QwtInterval &, QwtColorMap *)
	Set the color map

QwtInterval	colorBarInterval () const
	获取颜色条的值区间

const QwtColorMap *	colorMap () const
	获取颜色映射

virtual QSize	sizeHint () const override
	获取大小提示

virtual QSize	minimumSizeHint () const override
	获取最小大小提示

int	titleHeightForWidth (int width) const
	查找给定宽度下标题的高度

int	dimForLength (int length, const QFont &scaleFont) const
	查找给定长度的最小尺寸

void	drawColorBar (QPainter *, const QRectF &) const
	Draw the color bar

void	drawTitle (QPainter *, QwtScaleDraw::Alignment, const QRectF &rect) const
	Draw the title

void	setAlignment (QwtScaleDraw::Alignment)
	Set the alignment

QwtScaleDraw::Alignment	alignment () const
	获取对齐方式

QRectF	colorBarRect (const QRectF &) const
	计算颜色条的矩形区域

QRect	scaleRect () const
	获取用于绘制刻度的矩形区域（不包含 colorBar、margin、edgeMargin、borderDistHint）

void	setTextColor (const QColor &c)
	Set the text color (font color of the coordinate axis)

QColor	textColor () const
	获取坐标轴的字体颜色

void	setScaleColor (const QColor &c)
	Set the scale color (color of the coordinate axis)

QColor	scaleColor () const
	获取坐标轴的颜色

void	layoutScale (bool update_geometry=true)
	Layout the scale

QwtAxisId	axisID () const
	获取此轴窗口对应的 axisID

bool	isXAxis () const
	是否是 X 坐标轴

bool	isYAxis () const
	是否是 Y 坐标轴

void	setBuildinActions (BuiltinActionsFlags acts)
	Enable/disable built-in actions

BuiltinActionsFlags	buildinActions () const
	获取内置的动作标志

bool	testBuildinActions (BuiltinActions ba) const
	检测内置动作是否激活

void	setSelected (bool selected)
	Set the selected state

bool	isSelected () const
	当前轴是否被选中

void	setSelectionColor (const QColor &color)
	Set the selection color

QColor	selectionColor () const
	获取选中的颜色

void	setZoomFactor (double factor)
	Set the zoom factor (default 1.2)

double	zoomFactor () const
	获取缩放因子

void	setSelectedPenWidthOffset (qreal offset=1)
	Set the selected pen width offset

qreal	selectedPenWidthOffset () const
	获取当前坐标轴在选中状态下的画笔宽度附加值

bool	isOnScale (const QPoint &pos) const
	Check if a point is on the scale area

Protected 成员函数
virtual void	paintEvent (QPaintEvent *) override
	paintEvent

virtual void	resizeEvent (QResizeEvent *) override
	Event handler for resize events

virtual void	changeEvent (QEvent *) override
	Change Event handler

void	draw (QPainter *) const
	draw the scale

void	scaleChange ()
	Notify a change of the scale

详细描述

包含刻度的控件

成员枚举类型说明

◆ BuiltinActions

enum QwtScaleWidget::BuiltinActions

内置的动作

枚举值
ActionNone	No action
ActionWheelZoom	Mouse wheel zoom (after clicking to activate the axis, scrolling the wheel zooms the current axis)
ActionClickPan	Mouse click and drag (after clicking to activate the axis, dragging moves the axis left/right)
ActionAll	All actions

◆ LayoutFlag

enum QwtScaleWidget::LayoutFlag

Layout flags of the title

枚举值
TitleInverted	The title of vertical scales is painted from top to bottom. Otherwise it is painted from bottom to top.

构造及析构函数说明

◆ QwtScaleWidget()

QwtScaleWidget::QwtScaleWidget ( QWidget * parent = nullptr )

explicit

Constructor

创建位置为 QwtScaleWidget::Left 的刻度

成员函数说明

◆ alignment()

QwtScaleDraw::Alignment QwtScaleWidget::alignment ( ) const

获取对齐方式

返回: the alignment

◆ axisID()

QwtAxisId QwtScaleWidget::axisID ( ) const

获取此轴窗口对应的 axisID

返回: the axis ID for this scale widget

◆ buildinActions()

QwtScaleWidget::BuiltinActionsFlags QwtScaleWidget::buildinActions ( ) const

获取内置的动作标志

返回: the built-in actions flags

◆ changeEvent()

void QwtScaleWidget::changeEvent ( QEvent * event )

overrideprotectedvirtual

Change Event handler

参数

event Change event

Invalidates internal caches if necessary

◆ colorBarInterval()

QwtInterval QwtScaleWidget::colorBarInterval ( ) const

获取颜色条的值区间

返回: the color bar interval

◆ colorBarRect()

QRectF QwtScaleWidget::colorBarRect ( const QRectF & rect ) const

计算颜色条的矩形区域

返回: the rectangle for the color bar

◆ colorBarWidth()

int QwtScaleWidget::colorBarWidth ( ) const

获取颜色条的宽度

返回: the color bar width

◆ colorMap()

const QwtColorMap * QwtScaleWidget::colorMap ( ) const

获取颜色映射

返回: the color map

◆ dimForLength()

int QwtScaleWidget::dimForLength	(	int	length,
		const QFont &	scaleFont
	)		const

查找给定长度的最小尺寸

返回: the dimension required for a given length

◆ drawColorBar()

void QwtScaleWidget::drawColorBar	(	QPainter *	painter,
		const QRectF &	rect
	)		const

Draw the color bar

绘制刻度控件的颜色条

◆ drawTitle()

void QwtScaleWidget::drawTitle	(	QPainter *	painter,
		QwtScaleDraw::Alignment	align,
		const QRectF &	rect
	)		const

Draw the title

根据标题的位置旋转并绘制标题到指定矩形区域

◆ edgeMargin()

int QwtScaleWidget::edgeMargin ( ) const

获取边缘距离

返回: the edge margin

◆ endBorderDist()

int QwtScaleWidget::endBorderDist ( ) const

获取末端边框距离

返回: the end border distance

◆ endMinBorderDist()

int QwtScaleWidget::endMinBorderDist ( ) const

获取刻度两端与控件边框的最小距离（右侧或底部）

返回: the end minimum border distance

◆ getBorderDistHint()

void QwtScaleWidget::getBorderDistHint	(	int &	start,
		int &	end
	)		const

Get the border distance hint

计算边框距离的"建议值"

◆ getMinBorderDist()

void QwtScaleWidget::getMinBorderDist	(	int &	start,
		int &	end
	)		const

Get the minimum border distances

获取刻度两端与控件边框的最小距离

◆ isColorBarEnabled()

bool QwtScaleWidget::isColorBarEnabled ( ) const

检查颜色条是否已启用

返回: true if color bar is enabled

◆ isOnScale()

bool QwtScaleWidget::isOnScale ( const QPoint & pos ) const

Check if a point is on the scale area

判断鼠标位置是否落在"纯刻度区域"

◆ isSelected()

bool QwtScaleWidget::isSelected ( ) const

当前轴是否被选中

返回: true if selected

◆ isXAxis()

bool QwtScaleWidget::isXAxis ( ) const

是否是 X 坐标轴

返回: true if this is an X axis

◆ isYAxis()

bool QwtScaleWidget::isYAxis ( ) const

是否是 Y 坐标轴

返回: true if this is a Y axis

◆ layoutScale()

void QwtScaleWidget::layoutScale ( bool update_geometry = true )

Layout the scale

根据当前几何形状和字体重新计算刻度的几何形状和布局

◆ margin()

int QwtScaleWidget::margin ( ) const

获取边距

返回: the margin

◆ minimumSizeHint()

QSize QwtScaleWidget::minimumSizeHint ( ) const

overridevirtual

获取最小大小提示

◆ requestScaleRangeUpdate

void QwtScaleWidget::requestScaleRangeUpdate	(	double	min,
		double	max
	)

signal

坐标轴主动请求变更刻度范围

◆ resizeEvent()

void QwtScaleWidget::resizeEvent ( QResizeEvent * event )

overrideprotectedvirtual

Event handler for resize events

参数

event Resize event

◆ scaleChange()

void QwtScaleWidget::scaleChange ( )

protected

Notify a change of the scale

This virtual function can be overloaded by derived classes. The default implementation updates the geometry and repaints the widget.

◆ scaleColor()

QColor QwtScaleWidget::scaleColor ( ) const

获取坐标轴的颜色

返回: the scale color

◆ scaleDivChanged

void QwtScaleWidget::scaleDivChanged ( )

signal

当刻度分度发生变化时发出的信号

◆ scaleDraw() [1/2]

QwtScaleDraw * QwtScaleWidget::scaleDraw ( )

获取刻度绘制对象

返回: the scale draw

◆ scaleDraw() [2/2]

const QwtScaleDraw * QwtScaleWidget::scaleDraw ( ) const

获取刻度绘制对象（常量版本）

返回: the scale draw (const version)

◆ scaleRect()

QRect QwtScaleWidget::scaleRect ( ) const

获取用于绘制刻度的矩形区域（不包含 colorBar、margin、edgeMargin、borderDistHint）

返回: the scale rectangle (excluding color bar, margin, edge margin, border distances)

◆ selectedPenWidthOffset()

qreal QwtScaleWidget::selectedPenWidthOffset ( ) const

获取当前坐标轴在选中状态下的画笔宽度附加值

返回: the selected pen width offset

◆ selectionChanged

void QwtScaleWidget::selectionChanged ( bool selected )

signal

当前轴被选中状态发生变化发射信号

◆ selectionColor()

QColor QwtScaleWidget::selectionColor ( ) const

获取选中的颜色

返回: the selection color

◆ setAlignment()

void QwtScaleWidget::setAlignment ( QwtScaleDraw::Alignment alignment )

Set the alignment

更改对齐方式

◆ setBorderDist()

void QwtScaleWidget::setBorderDist	(	int	dist1,
		int	dist2
	)

Set the border distances

设置刻度两端与控件边框的距离

◆ setBuildinActions()

void QwtScaleWidget::setBuildinActions ( BuiltinActionsFlags acts )

Enable/disable built-in actions

设置内置的动作

◆ setColorBarEnabled()

void QwtScaleWidget::setColorBarEnabled ( bool on )

Enable/disable the color bar

启用/禁用与刻度关联的颜色条

◆ setColorBarWidth()

void QwtScaleWidget::setColorBarWidth ( int width )

Set the color bar width

设置颜色条的宽度

◆ setColorMap()

void QwtScaleWidget::setColorMap	(	const QwtInterval &	interval,
		QwtColorMap *	colorMap
	)

Set the color map

设置用于显示颜色条的颜色映射和值区间

◆ setEdgeMargin()

void QwtScaleWidget::setEdgeMargin ( int offset )

Set the edge margin (offset between axis and plot canvas)

设置坐标轴和绘图边缘的空白偏移距离

◆ setLabelAlignment()

void QwtScaleWidget::setLabelAlignment ( Qt::Alignment alignment )

Set the label alignment

更改标签的对齐方式

◆ setLabelRotation()

void QwtScaleWidget::setLabelRotation ( double rotation )

Set the label rotation

更改标签的旋转角度

◆ setLayoutFlag()

void QwtScaleWidget::setLayoutFlag	(	LayoutFlag	flag,
		bool	on
	)

Set a layout flag

切换布局标志

◆ setMargin()

void QwtScaleWidget::setMargin ( int margin )

Set the margin

设置到颜色条/基线的边距

◆ setMinBorderDist()

void QwtScaleWidget::setMinBorderDist	(	int	start,
		int	end
	)

Set the minimum border distances

设置刻度两端与控件边框的最小距离

◆ setScaleColor()

void QwtScaleWidget::setScaleColor ( const QColor & c )

Set the scale color (color of the coordinate axis)

设置坐标轴的颜色

◆ setScaleDiv()

void QwtScaleWidget::setScaleDiv ( const QwtScaleDiv & scaleDiv )

Set the scale division

设置刻度划分

◆ setScaleDraw()

void QwtScaleWidget::setScaleDraw ( QwtScaleDraw * scaleDraw )

Set the scale draw

设置刻度绘制对象

◆ setSelected()

void QwtScaleWidget::setSelected ( bool selected )

Set the selected state

设置当前轴被选中

◆ setSelectedPenWidthOffset()

void QwtScaleWidget::setSelectedPenWidthOffset ( qreal offset = 1 )

Set the selected pen width offset

设置坐标轴在选中状态下的画笔宽度附加值

◆ setSelectionColor()

void QwtScaleWidget::setSelectionColor ( const QColor & color )

Set the selection color

设置选中的颜色

◆ setSpacing()

void QwtScaleWidget::setSpacing ( int spacing )

Set the spacing

设置颜色条、刻度和标题之间的距离

◆ setTextColor()

void QwtScaleWidget::setTextColor ( const QColor & c )

Set the text color (font color of the coordinate axis)

设置坐标轴的字体颜色

◆ setTitle() [1/2]

void QwtScaleWidget::setTitle ( const QString & title )

Set the title

设置标题的文本内容

◆ setTitle() [2/2]

void QwtScaleWidget::setTitle ( const QwtText & title )

Set the title

设置标题的文本内容

◆ setTransformation()

void QwtScaleWidget::setTransformation ( QwtTransform * transformation )

Set the transformation

设置变换

◆ setZoomFactor()

void QwtScaleWidget::setZoomFactor ( double factor )

Set the zoom factor (default 1.2)

设置缩放因子（默认 1.2）

◆ sizeHint()

QSize QwtScaleWidget::sizeHint ( ) const

overridevirtual

获取大小提示

◆ spacing()

int QwtScaleWidget::spacing ( ) const

获取刻度和标题之间的距离

返回: the spacing

◆ startBorderDist()

int QwtScaleWidget::startBorderDist ( ) const

获取起始边框距离

返回: the start border distance

◆ startMinBorderDist()

int QwtScaleWidget::startMinBorderDist ( ) const

获取刻度两端与控件边框的最小距离（左侧或顶部）

返回: the start minimum border distance

◆ testBuildinActions()

bool QwtScaleWidget::testBuildinActions ( QwtScaleWidget::BuiltinActions ba ) const

检测内置动作是否激活

返回: true if a built-in action is active

◆ testLayoutFlag()

bool QwtScaleWidget::testLayoutFlag ( LayoutFlag flag ) const

测试布局标志

返回: true if a layout flag is set

◆ textColor()

QColor QwtScaleWidget::textColor ( ) const

获取坐标轴的字体颜色

返回: the text color

◆ title()

QwtText QwtScaleWidget::title ( ) const

获取标题

返回: the title

◆ titleHeightForWidth()

int QwtScaleWidget::titleHeightForWidth ( int width ) const

查找给定宽度下标题的高度

返回: the height required for the title for a given width

◆ zoomFactor()

double QwtScaleWidget::zoomFactor ( ) const

获取缩放因子

返回: the zoom factor

该类的文档由以下文件生成:

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

类

Public 类型

信号

Public 成员函数

Protected 成员函数

详细描述

成员枚举类型说明

◆ BuiltinActions

◆ LayoutFlag

构造及析构函数说明

◆ QwtScaleWidget()

成员函数说明

◆ alignment()

◆ axisID()

◆ buildinActions()

◆ changeEvent()

◆ colorBarInterval()

◆ colorBarRect()

◆ colorBarWidth()

◆ colorMap()

◆ dimForLength()

◆ drawColorBar()

◆ drawTitle()

◆ edgeMargin()

◆ endBorderDist()

◆ endMinBorderDist()

◆ getBorderDistHint()

◆ getMinBorderDist()

◆ isColorBarEnabled()

◆ isOnScale()

◆ isSelected()

◆ isXAxis()

◆ isYAxis()

◆ layoutScale()

◆ margin()

◆ minimumSizeHint()

◆ requestScaleRangeUpdate

◆ resizeEvent()

◆ scaleChange()

◆ scaleColor()

◆ scaleDivChanged

◆ scaleDraw() [1/2]

◆ scaleDraw() [2/2]

◆ scaleRect()

◆ selectedPenWidthOffset()

◆ selectionChanged

◆ selectionColor()

◆ setAlignment()

◆ setBorderDist()

◆ setBuildinActions()

◆ setColorBarEnabled()

◆ setColorBarWidth()

◆ setColorMap()

◆ setEdgeMargin()

◆ setLabelAlignment()

◆ setLabelRotation()

◆ setLayoutFlag()

◆ setMargin()

◆ setMinBorderDist()

◆ setScaleColor()

◆ setScaleDiv()

◆ setScaleDraw()

◆ setSelected()

◆ setSelectedPenWidthOffset()

◆ setSelectionColor()

◆ setSpacing()

◆ setTextColor()

◆ setTitle() [1/2]

◆ setTitle() [2/2]

◆ setTransformation()

◆ setZoomFactor()

◆ sizeHint()

◆ spacing()

◆ startBorderDist()

◆ startMinBorderDist()

◆ testBuildinActions()

◆ testLayoutFlag()

◆ textColor()

◆ title()

◆ titleHeightForWidth()