QwtCompassWindArrow类 参考

An indicator for the wind direction 更多...

#include <qwt_dial_needle.h>

类 QwtCompassWindArrow 继承关系图:

Public 类型
enum	Style { Style1 , Style2 }
	Style of the arrow

Public 成员函数
	QwtCompassWindArrow (Style, const QColor &light=Qt::white, const QColor &dark=Qt::gray)
	Constructor
Public 成员函数 继承自 QwtDialNeedle
	QwtDialNeedle ()
	Constructor
virtual	~QwtDialNeedle ()
	Destructor
virtual void	setPalette (const QPalette &)
	Set the palette for the needle
const QPalette &	palette () const
	Return the palette of the needle
void	setFlatStyle (bool)
	Set flat style
bool	flatStyle () const
	Return flat style
virtual void	draw (QPainter *, const QPointF &center, double length, double direction, QPalette::ColorGroup=QPalette::Active) const
	Draw the needle

Protected 成员函数
virtual void	drawNeedle (QPainter *, double length, QPalette::ColorGroup) const override
	Draw the needle
Protected 成员函数 继承自 QwtDialNeedle
virtual void	drawKnob (QPainter *, double width, const QBrush &, bool sunken) const
	Draw the knob

额外继承的成员函数
Protected 属性 继承自 QwtDialNeedle
QPalette	m_palette
bool	m_flatStyle

详细描述

An indicator for the wind direction

QwtCompassWindArrow shows the direction where the wind comes from. The following colors are used:

• QPalette::Light: Used for Style1, or the light half of Style2
• QPalette::Dark: Used for the dark half of Style2

  参见

  QwtDial, QwtCompass

构造及析构函数说明

QwtCompassWindArrow()

QwtCompassWindArrow::QwtCompassWindArrow	(	Style	style,
		const QColor &	light = Qt::white,
		const QColor &	dark = Qt::gray
	)

Constructor

参数

[in]	style	Arrow style
[in]	light	Light color
[in]	dark	Dark color

成员函数说明

drawNeedle()

void QwtCompassWindArrow::drawNeedle ( QPainter *  painter, double  length, QPalette::ColorGroup  colorGroup  ) const

overrideprotectedvirtual

Draw the needle

参数

painter	Painter
length	Length of the needle
colorGroup	Color group, used for painting

实现了 QwtDialNeedle.

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该类的文档由以下文件生成:

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