Referencia de la Clase QwtSymbol

A class for drawing symbols. Más...

#include <qwt_symbol.h>

Lista de todos los miembros.

Tipos públicos
enum	Style {   NoSymbol = -1, Ellipse, Rect, Diamond,   Triangle, DTriangle, UTriangle, LTriangle,   RTriangle, Cross, XCross, HLine,   VLine, Star1, Star2, Hexagon,   StyleCnt }
Métodos públicos
	QwtSymbol ()
	QwtSymbol (Style st, const QBrush &bd, const QPen &pn, const QSize &s)
	Constructor.
virtual	~QwtSymbol ()
	Destructor.
bool	operator!= (const QwtSymbol &) const
	!= operator
virtual bool	operator== (const QwtSymbol &) const
	== operator
virtual QwtSymbol *	clone () const
void	setSize (const QSize &s)
	Set the symbol's size.
void	setSize (int a, int b=-1)
	Specify the symbol's size.
void	setBrush (const QBrush &b)
	Assign a brush.
void	setPen (const QPen &p)
	Assign a pen.
void	setStyle (Style s)
	Specify the symbol style.
const QBrush &	brush () const
	Return Brush.
const QPen &	pen () const
	Return Pen.
const QSize &	size () const
	Return Size.
Style	style () const
	Return Style.
void	draw (QPainter *p, const QPoint &pt) const
	Draw the symbol at a specified point.
void	draw (QPainter *p, int x, int y) const
	Draw the symbol at a point (x,y).
virtual void	draw (QPainter *p, const QRect &r) const
	Draw the symbol into a bounding rectangle.

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Descripción detallada

A class for drawing symbols.

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Documentación de las enumeraciones miembro de la clase

enum QwtSymbol::Style

Style

Ver también:

setStyle(), style()

Valores de enumeraciones:

NoSymbol
Ellipse
Rect
Diamond
Triangle
DTriangle
UTriangle
LTriangle
RTriangle
Cross
XCross
HLine
VLine
Star1
Star2
Hexagon
StyleCnt

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Documentación del constructor y destructor

QwtSymbol::QwtSymbol

(

)

Default Constructor

The symbol is constructed with gray interior, black outline with zero width, no size and style 'NoSymbol'.

QwtSymbol::QwtSymbol	(	QwtSymbol::Style	style,
		const QBrush &	brush,
		const QPen &	pen,
		const QSize &	size
	)

Constructor.

Parámetros:

style	Symbol Style
brush	brush to fill the interior
pen	outline pen
size	size

QwtSymbol::~QwtSymbol

(

)

[virtual]

Destructor.

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Documentación de las funciones miembro

const QBrush& QwtSymbol::brush

(

)

const [inline]

Return Brush.

QwtSymbol * QwtSymbol::clone

(

)

const [virtual]

void QwtSymbol::draw	(	QPainter *	painter,
		const QRect &	r
	)		const [virtual]

Draw the symbol into a bounding rectangle.

This function assumes that the painter has been initialized with brush and pen before. This allows a much more performant implementation when painting many symbols with the same brush and pen like in curves.

Parámetros:

painter	Painter
r	Bounding rectangle

void QwtSymbol::draw	(	QPainter *	painter,
		const QPoint &	pos
	)		const

Draw the symbol at a specified point.

Parámetros:

painter	Painter
pos	Center of the symbol

void QwtSymbol::draw	(	QPainter *	p,
		int	x,
		int	y
	)		const

Draw the symbol at a point (x,y).

bool QwtSymbol::operator!=

(

const QwtSymbol &

other

)

const

!= operator

bool QwtSymbol::operator==

(

const QwtSymbol &

other

)

const [virtual]

== operator

const QPen& QwtSymbol::pen

(

)

const [inline]

Return Pen.

void QwtSymbol::setBrush

(

const QBrush &

br

)

Assign a brush.

The brush is used to draw the interior of the symbol.

Parámetros:

br

brush

void QwtSymbol::setPen

(

const QPen &

pn

)

Assign a pen.

The pen is used to draw the symbol's outline.

Parámetros:

pn

pen

void QwtSymbol::setSize

(

const QSize &

s

)

Set the symbol's size.

void QwtSymbol::setSize	(	int	w,
		int	h = -1
	)

Specify the symbol's size.

If the 'h' parameter is left out or less than 0, and the 'w' parameter is greater than or equal to 0, the symbol size will be set to (w,w).

Parámetros:

w	width
h	height (defaults to -1)

void QwtSymbol::setStyle

(

QwtSymbol::Style

s

)

Specify the symbol style.

The following styles are defined:

NoSymbol

No Style. The symbol cannot be drawn.

Ellipse

Ellipse or circle

Rect

Rectangle

Diamond

Diamond

Triangle

Triangle pointing upwards

DTriangle

Triangle pointing downwards

UTriangle

Triangle pointing upwards

LTriangle

Triangle pointing left

RTriangle

Triangle pointing right

Cross

Cross (+)

XCross

Diagonal cross (X)

HLine

Horizontal line

VLine

Vertical line

Star1

X combined with +

Star2

Six-pointed star

Hexagon

Hexagon

Parámetros:

s

style

const QSize& QwtSymbol::size

(

)

const [inline]

Return Size.

Style QwtSymbol::style

(

)

const [inline]

Return Style.

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La documentación para esta clase fue generada a partir de los siguientes ficheros:

• src/qwt/src/qwt_symbol.h
• src/qwt/src/qwt_symbol.cpp