QwtIntervalSymbol
A drawing primitive for displaying an interval like an error bar.
- Provided by: libqwt-doc (Version: 6.0.0-1.2)
- Source: qwt
- Report a bug
SYNOPSIS
#include <qwt_interval_symbol.h>
Public Types
enum Style { NoSymbol = -1, Bar, Box,
UserSymbol = 1000 }
Public Member Functions
QwtIntervalSymbol (Style=NoSymbol)
QwtIntervalSymbol (const QwtIntervalSymbol &)
virtual ~QwtIntervalSymbol ()
QwtIntervalSymbol & operator= (const
QwtIntervalSymbol &)
bool operator== (const QwtIntervalSymbol &) const
bool operator!= (const QwtIntervalSymbol &) const
void setWidth (int)
int width () const
void setBrush (const QBrush &b)
const QBrush & brush () const
void setPen (const QPen &)
const QPen & pen () const
void setStyle (Style)
Style style () const
virtual void draw (QPainter *, Qt::Orientation, const QPointF
&from, const QPointF &to) const
Detailed Description
A drawing primitive for displaying an interval like an error bar.
See also:
QwtPlotIntervalCurve
Member Enumeration Documentation
enum QwtIntervalSymbol::Style
Symbol style.
Enumerator:
- NoSymbol
- No Style. The symbol cannot be drawn.
- Bar
- The symbol displays a line with caps at the beginning/end. The size of the caps depends on the symbol width().
- Box
- The symbol displays a plain rectangle using pen() and brush(). The size of the rectangle depends on the translated interval and the width(),
- UserSymbol
- Styles >= UserSymbol are reserved for derived classes of QwtIntervalSymbol that overload draw() with additional application specific symbol types.
Constructor & Destructor Documentation
QwtIntervalSymbol::QwtIntervalSymbol (Stylestyle = NoSymbol) Constructor
Parameters:
style Style of the symbol
See also:
setStyle(), style(), Style
QwtIntervalSymbol::QwtIntervalSymbol (const QwtIntervalSymbol &other)
Copy constructor.
QwtIntervalSymbol::~QwtIntervalSymbol () [virtual]
Destructor.
Member Function Documentation
const QBrush & QwtIntervalSymbol::brush () const Returns:
Brush
See also:
setBrush()
void QwtIntervalSymbol::draw (QPainter *painter, Qt::Orientationorientation, const QPointF &from, const QPointF &to) const [virtual] Draw a symbol depending on its style
Parameters:
painter Painter
orientation Orientation
from Start point of the interval in target device coordinates
to End point of the interval in target device coordinates
orientation Orientation
from Start point of the interval in target device coordinates
to End point of the interval in target device coordinates
See also:
setStyle()
bool QwtIntervalSymbol::operator!= (const QwtIntervalSymbol &other) const
Compare two symbols.
QwtIntervalSymbol & QwtIntervalSymbol::operator= (const QwtIntervalSymbol &other)
Assignment operator.
bool QwtIntervalSymbol::operator== (const QwtIntervalSymbol &other) const
Compare two symbols.
const QPen & QwtIntervalSymbol::pen () const Returns:
Pen
See also:
setPen(), brush()
void QwtIntervalSymbol::setBrush (const QBrush &brush)
Assign a brush. The brush is used for the Box style.
Parameters:
brush Brush
See also:
brush()
void QwtIntervalSymbol::setPen (const QPen &pen) Assign a pen
Parameters:
pen Pen
See also:
pen(), setBrush()
void QwtIntervalSymbol::setStyle (Stylestyle) Specify the symbol style
Parameters:
style Style
See also:
style(), Style
void QwtIntervalSymbol::setWidth (intwidth) Specify the width of the symbol It is used depending on the style.
Parameters:
width Width
See also:
width(), setStyle()
QwtIntervalSymbol::Style QwtIntervalSymbol::style () const Returns:
Current symbol style
See also:
setStyle()
int QwtIntervalSymbol::width () const Returns:
Width of the symbol.
See also:
setWidth(), setStyle()
Author
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