QwtColumnSymbol类 参考

A drawing primitive for columns 更多...

#include <qwt_column_symbol.h>

类
class	PrivateData

Public 类型
enum	Style { NoStyle = -1 , Box , UserStyle = 1000 }
	Style 更多...
enum	FrameStyle { NoFrame , Plain , Raised }
	Frame Style used in Box style() 更多...

Public 成员函数
	QwtColumnSymbol (Style=NoStyle)
	Constructor with style parameter
virtual	~QwtColumnSymbol ()
	Destructor
void	setFrameStyle (FrameStyle)
	Set the frame style
FrameStyle	frameStyle () const
	Return the frame style
void	setLineWidth (int width)
	Set the line width for the frame
int	lineWidth () const
	Return the line width
void	setStyle (Style)
	Set the column style
Style	style () const
	Return the column style
void	setPen (const QPen &pen)
	Set the outline pen
QPen	pen () const
	Return the outline pen
void	setBrush (const QBrush &b)
	Set the fill brush
QBrush	brush () const
	Return the fill brush
virtual void	draw (QPainter *, const QwtColumnRect &) const
	Draw the column symbol

Protected 成员函数
void	drawBox (QPainter *, const QwtColumnRect &) const

详细描述

A drawing primitive for columns

QwtColumnSymbol defines how columns are rendered in column-based charts like bar charts. It provides different styles (Box, etc.) and frame styles (Plain, Raised, NoFrame) to customize the appearance of column graphics. The symbol can be extended by deriving new types with UserStyle.

成员枚举类型说明

FrameStyle

enum QwtColumnSymbol::FrameStyle

Frame Style used in Box style()

参见

Style, setFrameStyle(), frameStyle(), setStyle(), setPalette()

枚举值
NoFrame	No frame
Plain	A plain frame style
Raised	A raised frame style

Style

enum QwtColumnSymbol::Style

Style

参见

setStyle(), style()

枚举值
NoStyle	No Style, the symbol draws nothing
Box	The column is painted with a frame depending on the frameStyle() and lineWidth() using the palette().
UserStyle	Styles >= QwtColumnSymbol::UserStyle are reserved for derived classes of QwtColumnSymbol that overload draw() with additional application specific symbol types.

构造及析构函数说明

QwtColumnSymbol()

QwtColumnSymbol::QwtColumnSymbol ( Style  style = NoStyle )

explicit

Constructor with style parameter

Constructor

参数

[in]

style

Style of the symbol

参见

setStyle(), style(), Style

Destructor

成员函数说明

brush()

QBrush QwtColumnSymbol::brush

(

)

const

Return the fill brush

返回

Current brush used for filling the column

draw()

void QwtColumnSymbol::draw ( QPainter *  painter, const QwtColumnRect &  rect  ) const

virtual

Draw the column symbol

Draw the symbol depending on its style

参数

[in]	painter	Painter to use for drawing
[in]	rect	Directed rectangle defining the column bounds

参见

drawBox()

frameStyle()

QwtColumnSymbol::FrameStyle QwtColumnSymbol::frameStyle

(

)

const

Return the frame style

Return current frame style that is used for the Box style

返回

Current frame style

参见

setFrameStyle(), lineWidth(), setStyle()

lineWidth()

int QwtColumnSymbol::lineWidth

(

)

const

Return the line width

Return line width of the frame that is used for the Box style

返回

Current line width

参见

setLineWidth(), frameStyle(), setStyle()

pen()

QPen QwtColumnSymbol::pen

(

)

const

Return the outline pen

返回

Current pen used for drawing the outline

setBrush()

void QwtColumnSymbol::setBrush

(

const QBrush &

b

)

Set the fill brush

Specify the fill brush

参数

[in]

b

Brush to use for filling the column

setFrameStyle()

void QwtColumnSymbol::setFrameStyle

(

FrameStyle

frameStyle

)

Set the frame style

Set the frame style that is used for the Box style

参数

[in]

frameStyle

Frame style to set

参见

frameStyle(), setLineWidth(), setStyle()

setLineWidth()

void QwtColumnSymbol::setLineWidth

(

int

width

)

Set the line width for the frame

Set the line width of the frame that is used for the Box style

参数

[in]

width

Width of the frame line

参见

lineWidth(), setFrameStyle()

setPen()

void QwtColumnSymbol::setPen

(

const QPen &

pen

)

Set the outline pen

Specify the outline pen

参数

[in]

pen

Pen to use for drawing the outline

setStyle()

void QwtColumnSymbol::setStyle

(

Style

style

)

Set the column style

Specify the symbol style

参数

[in]

style

Style to set

参见

style(), setPalette()

style()

QwtColumnSymbol::Style QwtColumnSymbol::style

(

)

const

Return the column style

Return current symbol style

返回

Current style

参见

setStyle()

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该类的文档由以下文件生成:

• /home/runner/work/QWT/QWT/src/plot/qwt_column_symbol.h
• /home/runner/work/QWT/QWT/src/plot/qwt_column_symbol.cpp