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QwtSymbol(3) Qwt User's Guide QwtSymbol(3)

QwtSymbol -

#include <qwt_symbol.h>


enum Style { NoSymbol = -1, Ellipse, Rect, Diamond, Triangle, DTriangle, UTriangle, LTriangle, RTriangle, Cross, XCross, HLine, VLine, Star1, Star2, Hexagon, StyleCnt }
 


QwtSymbol ()
 
QwtSymbol (Style st, const QBrush &bd, const QPen &pn, const QSize &s)
 
virtual ~QwtSymbol ()
 
const QBrush & brush () const
 
virtual QwtSymbol * clone () const
 
void draw (QPainter *p, const QPoint &pt) const
 
void draw (QPainter *p, int x, int y) const
 
virtual void draw (QPainter *p, const QRect &r) const
 
bool operator!= (const QwtSymbol &) const
 
virtual bool operator== (const QwtSymbol &) const
 
const QPen & pen () const
 
void setBrush (const QBrush &b)
 
void setPen (const QPen &p)
 
void setSize (const QSize &s)
 
void setSize (int a, int b=-1)
 
void setStyle (Style s)
 
const QSize & size () const
 
Style style () const
 

A class for drawing symbols.

Style
See also:
setStyle(), style()

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

Constructor. Parameters:
style Symbol Style
 
brush brush to fill the interior
 
pen outline pen
 
size size

Allocate and return a symbol with the same attributes
Returns:
Cloned symbol

Draw the symbol at a specified point. Parameters:
painter Painter
 
pos Center of the symbol

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.
Parameters:
painter Painter
 
r Bounding rectangle

Assign a brush. The brush is used to draw the interior of the symbol.
Parameters:
brush Brush

Assign a pen
The pen is used to draw the symbol's outline.
The width of non cosmetic pens is scaled according to the resolution of the paint device.
Parameters:
pen Pen
See also:
pen(), setBrush(), QwtPainter::scaledPen()

Set the symbol's size
Parameters:
size Size

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).
Parameters:
width Width
 
height Height (defaults to -1)

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
Parameters:
s style

Generated automatically by Doxygen for Qwt User's Guide from the source code.
Tue Nov 20 2012 Version 5.2.3

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