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QwtSymbol
Langue: en
Version: 373137 (fedora - 01/12/10)
Section: 3 (Bibliothèques de fonctions)
Sommaire
- NAME
- SYNOPSIS
- Detailed Description
- Member Enumeration Documentation
- Constructor & Destructor Documentation
- Member Function Documentation
- const QBrush& QwtSymbol::brush () const [inline]
- QwtSymbol * QwtSymbol::clone () const [virtual]Allocate and return a symbol with the same attributes
- void QwtSymbol::draw (QPainter * painter, const QRect & r) const [virtual]
- void QwtSymbol::draw (QPainter * p, int x, int y) const
- void QwtSymbol::draw (QPainter * painter, const QPoint & pos) const
- bool QwtSymbol::operator!= (const QwtSymbol & other) const
- bool QwtSymbol::operator== (const QwtSymbol & other) const [virtual]
- const QPen& QwtSymbol::pen () const [inline]
- void QwtSymbol::setBrush (const QBrush & brush)
- void QwtSymbol::setPen (const QPen & pen)Assign a pen
- void QwtSymbol::setSize (int width, int height = -1)
- void QwtSymbol::setSize (const QSize & size)Set the symbol's size
- void QwtSymbol::setStyle (QwtSymbol::Style s)
- const QSize& QwtSymbol::size () const [inline]
- Style QwtSymbol::style () const [inline]
- Author
NAME
QwtSymbol -A class for drawing symbols.
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 ()
bool operator!= (const QwtSymbol &) const
virtual bool operator== (const QwtSymbol &) const
virtual QwtSymbol * clone () const
void setSize (const QSize &s)
void setSize (int a, int b=-1)
void setBrush (const QBrush &b)
void setPen (const QPen &p)
void setStyle (Style s)
const QBrush & brush () const
const QPen & pen () const
const QSize & size () const
Style style () 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
Detailed Description
A class for drawing symbols.
Member Enumeration Documentation
enum QwtSymbol::StyleStyle
See also:
- setStyle(), style()
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::Style style, const QBrush & brush, const QPen & pen, const QSize & size)
Constructor. Parameters:
- style Symbol Style
brush brush to fill the interior
pen outline pen
size size
QwtSymbol::~QwtSymbol () [virtual]
Destructor.
Member Function Documentation
const QBrush& QwtSymbol::brush () const [inline]
Return Brush.
QwtSymbol * QwtSymbol::clone () const [virtual]Allocate and return a symbol with the same attributes
Returns:
- Cloned 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:
- painter Painter
r Bounding rectangle
void QwtSymbol::draw (QPainter * p, int x, int y) const
Draw the symbol at a point (x,y).
void QwtSymbol::draw (QPainter * painter, const QPoint & pos) const
Draw the symbol at a specified point. Parameters:
- painter Painter
pos Center of the symbol
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 & brush)
Assign a brush. The brush is used to draw the interior of the symbol.
Parameters:
- brush Brush
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:
- pen Pen
See also:
- pen(), setBrush(), QwtPainter::scaledPen()
void QwtSymbol::setSize (int width, int height = -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:
- width Width
height Height (defaults to -1)
void QwtSymbol::setSize (const QSize & size)Set the symbol's size
Parameters:
- size Size
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
Parameters:
- s style
const QSize& QwtSymbol::size () const [inline]
Return Size.
Style QwtSymbol::style () const [inline]
Return Style.
Author
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