#include <qwt_plot_barchart.h>

类 QwtPlotBarChart 继承关系图:

类
class	PrivateData

Public 类型
enum	LegendMode { LegendChartTitle , LegendBarTitles }
	图例模式更多...

Public 类型继承自 QwtPlotAbstractBarChart
enum	LayoutPolicy { AutoAdjustSamples , ScaleSamplesToAxes , ScaleSampleToCanvas , FixedSampleSize }
	Mode how to calculate the bar width 更多...

Public 类型继承自 QwtPlotItem
enum	RttiValues { Rtti_PlotItem = 0 , Rtti_PlotGrid , Rtti_PlotScale , Rtti_PlotLegend , Rtti_PlotMarker , Rtti_PlotCurve , Rtti_PlotSpectroCurve , Rtti_PlotIntervalCurve , Rtti_PlotHistogram , Rtti_PlotSpectrogram , Rtti_PlotGraphic , Rtti_PlotTradingCurve , Rtti_PlotBarChart , Rtti_PlotMultiBarChart , Rtti_PlotShape , Rtti_PlotTextLabel , Rtti_PlotZone , Rtti_PlotVectorField , Rtti_PlotArrowMarker , Rtti_PlotBoxChart , Rtti_PlotUserItem = 1000 }
	运行时类型信息更多...

enum	ItemAttribute { Legend = 0x01 , AutoScale = 0x02 , Margins = 0x04 }
	绘图项属性更多...

enum	ItemInterest { ScaleInterest = 0x01 , LegendInterest = 0x02 }
	绘图项关注的事件类型更多...

enum	RenderHint { RenderAntialiased = 0x1 }
	渲染提示更多...

Public 成员函数
	QwtPlotBarChart (const QString &title=QString())
	构造函数

	QwtPlotBarChart (const QwtText &title)
	构造函数

virtual	~QwtPlotBarChart ()
	析构函数

virtual int	rtti () const override
	获取运行时类型信息

void	setSamples (const QVector< QPointF > &)
	用点数组初始化数据

void	setSamples (const QVector< double > &)
	用双精度数组初始化数据

void	setSamples (QwtSeriesData< QPointF > *)
	分配样本系列

void	setSymbol (QwtColumnSymbol *)
	分配符号

const QwtColumnSymbol *	symbol () const
	获取当前符号

void	setPen (const QPen &p)
	设置条形符号的画笔

QPen	pen () const
	获取条形符号的画笔

void	setBrush (const QBrush &b)
	设置条形符号的画刷

QBrush	brush () const
	获取条形符号的画刷

void	setFrameStyle (QwtColumnSymbol::FrameStyle f)
	设置条形符号的边框样式

QwtColumnSymbol::FrameStyle	frameStyle () const
	获取条形符号的边框样式

void	setLegendMode (LegendMode)
	设置决定图例显示内容的模式

LegendMode	legendMode () const
	获取图例模式

virtual void	drawSeries (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const override
	绘制条形图的一个区间

virtual QRectF	boundingRect () const override
	获取所有样本的边界矩形

virtual QwtColumnSymbol *	specialSymbol (int sampleIndex, const QPointF &) const
	获取特定样本的特殊符号

virtual QwtText	barTitle (int sampleIndex) const
	返回条形的标题

Public 成员函数继承自 QwtPlotAbstractBarChart
	QwtPlotAbstractBarChart (const QwtText &title)
	构造函数

virtual	~QwtPlotAbstractBarChart ()
	析构函数

void	setLayoutPolicy (LayoutPolicy)
	设置布局策略

LayoutPolicy	layoutPolicy () const
	获取布局策略

void	setLayoutHint (double)
	设置布局提示

double	layoutHint () const
	获取布局提示

void	setSpacing (int)
	设置条形之间的间距

int	spacing () const
	获取条形之间的间距

void	setMargin (int)
	设置条形周围的边距

int	margin () const
	获取条形周围的边距

void	setBaseline (double)
	设置基线值

double	baseline () const
	获取基线值

virtual void	getCanvasMarginHint (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, double &left, double &top, double &right, double &bottom) const override
	计算画布边距的提示

Public 成员函数继承自 QwtPlotSeriesItem
	QwtPlotSeriesItem (const QString &title=QString())
	构造函数

	QwtPlotSeriesItem (const QwtText &title)
	构造函数

virtual	~QwtPlotSeriesItem ()
	析构函数

void	setOrientation (Qt::Orientation)
	设置绘图项的方向

Qt::Orientation	orientation () const
	获取绘图项的方向

virtual void	draw (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const override
	绘制完整系列

virtual void	updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &) override
	更新刻度划分

Public 成员函数继承自 QwtPlotItem
	QwtPlotItem ()
	Default constructor

	QwtPlotItem (const QString &title)
	Constructor with title as QString

	QwtPlotItem (const QwtText &title)
	Constructor with title as QwtText

virtual	~QwtPlotItem ()
	Destructor

void	attach (QwtPlot *plot)
	Attach the item to a plot

void	detach ()
	Detach the item from the plot

QwtPlot *	plot () const
	Get the plot the item is attached to

void	setTitle (const QString &title)
	Set the title using a QString

void	setTitle (const QwtText &title)
	Set the title using a QwtText

const QwtText &	title () const
	Get the title

void	setItemAttribute (ItemAttribute, bool on=true)
	Set an item attribute

bool	testItemAttribute (ItemAttribute) const
	Test an item attribute

void	setItemInterest (ItemInterest, bool on=true)
	Set an item interest

bool	testItemInterest (ItemInterest) const
	Test an item interest

void	setRenderHint (RenderHint, bool on=true)
	Set a render hint

bool	testRenderHint (RenderHint) const
	Test a render hint

void	setRenderThreadCount (uint numThreads)
	Set the number of render threads

uint	renderThreadCount () const
	Get the number of render threads

void	setLegendIconSize (const QSize &)
	Set the legend icon size

QSize	legendIconSize () const
	Get the legend icon size

double	z () const
	Get the z-value

void	setZ (double z)
	Set the z-value

void	show ()
	Show the item

void	hide ()
	Hide the item

virtual void	setVisible (bool)
	Set the visibility

bool	isVisible () const
	Check if the item is visible

void	setAxes (QwtAxisId xAxis, QwtAxisId yAxis)
	Set both axes

void	setXAxis (QwtAxisId)
	Set the x-axis

QwtAxisId	xAxis () const
	Get the x-axis

void	setYAxis (QwtAxisId)
	Set the y-axis

QwtAxisId	yAxis () const
	Get the y-axis

virtual void	itemChanged ()
	Notify the plot that the item has changed

virtual void	legendChanged ()
	Notify the item that the legend has changed

virtual void	updateLegend (const QwtPlotItem *, const QList< QwtLegendData > &)
	Update the item with changes of the legend

QRectF	scaleRect (const QwtScaleMap &, const QwtScaleMap &) const
	Calculate the scale rectangle

QRectF	paintRect (const QwtScaleMap &, const QwtScaleMap &) const
	Calculate the paint rectangle

Public 成员函数继承自 QwtSeriesStore< QPointF >
void	setData (QwtSeriesData< QPointF > *series)

QwtSeriesData< QPointF > *	data ()

const QwtSeriesData< QPointF > *	data () const

QPointF	sample (size_t index) const

virtual size_t	dataSize () const override

virtual QRectF	dataRect () const override

virtual void	setRectOfInterest (const QRectF &rect) override
	Set a the "rectangle of interest" for the stored series

QwtSeriesData< QPointF > *	swapData (QwtSeriesData< QPointF > *series)

Protected 成员函数
virtual void	drawSample (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, const QwtInterval &boundingInterval, int index, const QPointF &sample) const
	Draw a sample

virtual void	drawBar (QPainter *, int sampleIndex, const QPointF &sample, const QwtColumnRect &) const
	Draw a bar

QwtColumnRect	columnRect (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, const QwtInterval &boundingInterval, const QPointF &sample) const
	Get column rectangle

QList< QwtLegendData >	legendData () const override
	Get legend data

QwtGraphic	legendIcon (int index, const QSizeF &) const override
	Get legend icon

Protected 成员函数继承自 QwtPlotAbstractBarChart
double	sampleWidth (const QwtScaleMap &map, double canvasSize, double boundingSize, double value) const
	Calculate the width for a sample in paint device coordinates

Protected 成员函数继承自 QwtPlotSeriesItem
virtual void	dataChanged () override
	dataChanged() indicates, that the series has been changed.

Protected 成员函数继承自 QwtPlotItem
QwtGraphic	defaultIcon (const QBrush &, const QSizeF &) const
	Create a default icon

详细描述

QwtPlotBarChart 将一系列值显示为条形

成员枚举类型说明

◆ LegendMode

enum QwtPlotBarChart::LegendMode

图例模式

枚举值

LegendChartTitle

图例上的一个条目，显示默认符号和图表的 title()

参见: QwtPlotItem::title()

LegendBarTitles

每个值的一个条目，显示对应条形的单独符号和条形标题。

参见: specialSymbol(), barTitle()

构造及析构函数说明

◆ QwtPlotBarChart() [1/2]

QwtPlotBarChart::QwtPlotBarChart ( const QString & title = QString() )

explicit

构造函数

◆ QwtPlotBarChart() [2/2]

QwtPlotBarChart::QwtPlotBarChart ( const QwtText & title )

explicit

构造函数

◆ ~QwtPlotBarChart()

QwtPlotBarChart::~QwtPlotBarChart ( )

virtual

析构函数

成员函数说明

◆ barTitle()

QwtText QwtPlotBarChart::barTitle ( int sampleIndex ) const

virtual

返回条形的标题

◆ boundingRect()

QRectF QwtPlotBarChart::boundingRect ( ) const

overridevirtual

获取所有样本的边界矩形

重载 QwtPlotSeriesItem .

◆ brush()

QBrush QwtPlotBarChart::brush ( ) const

获取条形符号的画刷

◆ columnRect()

QwtColumnRect QwtPlotBarChart::columnRect	(	const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect,
		const QwtInterval &	boundingInterval,
		const QPointF &	sample
	)		const

protected

Get column rectangle

Calculate the geometry of a bar in widget coordinates

参数

xMap	x map
yMap	y map
canvasRect	Contents rect of the canvas
boundingInterval	Bounding interval of sample values
sample	Value of the sample

返回: Geometry of the column

◆ drawBar()

void QwtPlotBarChart::drawBar	(	QPainter *	painter,
		int	sampleIndex,
		const QPointF &	sample,
		const QwtColumnRect &	rect
	)		const

protectedvirtual

Draw a bar

参数

painter	Painter
sampleIndex	Index of the sample represented by the bar
sample	Value of the sample
rect	Bounding rectangle of the bar

◆ drawSample()

void QwtPlotBarChart::drawSample	(	QPainter *	painter,
		const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect,
		const QwtInterval &	boundingInterval,
		int	index,
		const QPointF &	sample
	)		const

protectedvirtual

Draw a sample

参数

painter	Painter
xMap	x map
yMap	y map
canvasRect	Contents rect of the canvas
boundingInterval	Bounding interval of sample values
index	Index of the sample
sample	Value of the sample

参见: drawSeries()

◆ drawSeries()

void QwtPlotBarChart::drawSeries	(	QPainter *	painter,
		const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect,
		int	from,
		int	to
	)		const

overridevirtual

绘制条形图的一个区间

实现了 QwtPlotSeriesItem.

◆ frameStyle()

QwtColumnSymbol::FrameStyle QwtPlotBarChart::frameStyle ( ) const

获取条形符号的边框样式

◆ legendData()

QList< QwtLegendData > QwtPlotBarChart::legendData ( ) const

overrideprotectedvirtual

Get legend data

Return all information, that is needed to represent the item on the legend

In case of LegendBarTitles an entry for each bar is returned, otherwise the chart is represented like any other plot item from its title() and the legendIcon().

返回: Information, that is needed to represent the item on the legend

参见: title(), setLegendMode(), barTitle(), QwtLegend, QwtPlotLegendItem

重载 QwtPlotItem .

◆ legendIcon()

QwtGraphic QwtPlotBarChart::legendIcon	(	int	index,
		const QSizeF &	size
	)		const

overrideprotectedvirtual

Get legend icon

返回: Icon representing a bar or the chart on the legend

When the legendMode() is LegendBarTitles the icon shows the bar corresponding to index - otherwise the bar displays the default symbol.

参数

index	Index of the legend entry
size	Icon size

参见: setLegendMode(), drawBar(), QwtPlotItem::setLegendIconSize(), QwtPlotItem::legendData()

重载 QwtPlotItem .

◆ legendMode()

QwtPlotBarChart::LegendMode QwtPlotBarChart::legendMode ( ) const

获取图例模式

◆ pen()

QPen QwtPlotBarChart::pen ( ) const

获取条形符号的画笔

◆ rtti()

int QwtPlotBarChart::rtti ( ) const

overridevirtual

获取运行时类型信息

重载 QwtPlotItem .

◆ setBrush()

void QwtPlotBarChart::setBrush ( const QBrush & b )

设置条形符号的画刷

◆ setFrameStyle()

void QwtPlotBarChart::setFrameStyle ( QwtColumnSymbol::FrameStyle f )

设置条形符号的边框样式

◆ setLegendMode()

void QwtPlotBarChart::setLegendMode ( LegendMode mode )

设置决定图例显示内容的模式

◆ setPen()

void QwtPlotBarChart::setPen ( const QPen & p )

设置条形符号的画笔

◆ setSamples() [1/3]

void QwtPlotBarChart::setSamples ( const QVector< double > & samples )

用双精度数组初始化数据

◆ setSamples() [2/3]

void QwtPlotBarChart::setSamples ( const QVector< QPointF > & samples )

用点数组初始化数据

◆ setSamples() [3/3]

void QwtPlotBarChart::setSamples ( QwtSeriesData< QPointF > * data )

分配样本系列

◆ setSymbol()

void QwtPlotBarChart::setSymbol ( QwtColumnSymbol * symbol )

分配符号

◆ specialSymbol()

QwtColumnSymbol * QwtPlotBarChart::specialSymbol	(	int	sampleIndex,
		const QPointF &	sample
	)		const

virtual

获取特定样本的特殊符号

◆ symbol()

const QwtColumnSymbol * QwtPlotBarChart::symbol ( ) const

获取当前符号

该类的文档由以下文件生成:

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

类

Public 类型

Public 成员函数

Protected 成员函数

详细描述

成员枚举类型说明

◆ LegendMode

构造及析构函数说明

◆ QwtPlotBarChart() [1/2]

◆ QwtPlotBarChart() [2/2]

◆ ~QwtPlotBarChart()

成员函数说明

◆ barTitle()

◆ boundingRect()

◆ brush()

◆ columnRect()

◆ drawBar()

◆ drawSample()

◆ drawSeries()

◆ frameStyle()

◆ legendData()

◆ legendIcon()

◆ legendMode()

◆ pen()

◆ rtti()

◆ setBrush()

◆ setFrameStyle()

◆ setLegendMode()

◆ setPen()

◆ setSamples() [1/3]

◆ setSamples() [2/3]

◆ setSamples() [3/3]

◆ setSymbol()

◆ specialSymbol()

◆ symbol()