QwtSymbol(3) | Qwt User's Guide | QwtSymbol(3) |
NAME¶
QwtSymbol -
SYNOPSIS¶
#include <qwt_symbol.h>
Public Types¶
enum Style { NoSymbol = -1, Ellipse,
Rect, Diamond, Triangle, DTriangle,
UTriangle, LTriangle, RTriangle, Cross,
XCross, HLine, VLine, Star1, Star2,
Hexagon, StyleCnt }
Public Member Functions¶
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
Detailed Description¶
A class for drawing symbols.
Member Enumeration Documentation¶
enum QwtSymbol::Style¶
Style
See also:
Constructor & Destructor Documentation¶
QwtSymbol::QwtSymbol ()¶
Default Constructor
The symbol is constructed with gray interior, black outline with zero width, no size and style 'NoSymbol'.
QwtSymbol::QwtSymbol (QwtSymbol::Stylestyle, const QBrush &brush, const QPen &pen, const QSize &size)¶
Constructor. Parameters:
brush brush to fill the interior
pen outline pen
size size
Member Function Documentation¶
QwtSymbol * QwtSymbol::clone () const [virtual]¶
Allocate and return a symbol with the same attributes
Returns:
void QwtSymbol::draw (QPainter *painter, const QPoint &pos) const¶
Draw the symbol at a specified point. Parameters:
pos Center of the symbol
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.
Parameters:
r Bounding rectangle
void QwtSymbol::setBrush (const QBrush &brush)¶
Assign a brush. The brush is used to draw the interior of the symbol.
Parameters:
void QwtSymbol::setPen (const QPen &pen)¶
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:
See also:
void QwtSymbol::setSize (const QSize &size)¶
Set the symbol's size
Parameters:
void QwtSymbol::setSize (intwidth, intheight = -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).
Parameters:
height Height (defaults to -1)
void QwtSymbol::setStyle (QwtSymbol::Styles)¶
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:
Author¶
Generated automatically by Doxygen for Qwt User's Guide from the source code.
Tue Nov 20 2012 | Version 5.2.3 |