QwtIntervalSymbol Class Reference

A drawing primitive for displaying an interval like an error bar. More...

#include <qwt_interval_symbol.h>

List of all members.

Public Types

enum  Style {
  NoSymbol = -1,
  Bar,
  Box,
  UserSymbol = 1000
}

Public Member Functions

 QwtIntervalSymbol (Style=NoSymbol)
 QwtIntervalSymbol (const QwtIntervalSymbol &)
virtual ~QwtIntervalSymbol ()
QwtIntervalSymboloperator= (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

  • 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.
See also:
setStyle(), style()

Constructor & Destructor Documentation

QwtIntervalSymbol::QwtIntervalSymbol ( Style  style = NoSymbol  ) 

Constructor

Parameters:
style Style of the symbol
See also:
setStyle(), style(), Style
QwtIntervalSymbol::~QwtIntervalSymbol (  )  [virtual]

Destructor.


Member Function Documentation

const QBrush & QwtIntervalSymbol::brush (  )  const
Returns:
Brush
See also:
setBrush()
void QwtIntervalSymbol::draw ( QPainter *  painter,
Qt::Orientation  orientation,
const QPointF &  from,
const QPointF &  to 
) const [virtual]

Draw a symbol depending on its style

Parameters:
painter Painter
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 ( Style  style  ) 

Specify the symbol style

Parameters:
style Style
See also:
style(), Style
void QwtIntervalSymbol::setWidth ( int  width  ) 

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()
Generated on Sun Nov 21 12:01:35 2010 for Qwt User's Guide by  doxygen 1.6.3