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

NAME
       QwtIntervalSymbol - A drawing primitive for displaying an interval like
       an error bar.


SYNOPSIS
       #include <qwt_interval_symbol.h>

   Public Types
       enum Style { NoSymbol = -1, Bar, Box, UserSymbol = 1000 }
           Symbol style.

   Public Member Functions
       QwtIntervalSymbol (Style=NoSymbol)
       QwtIntervalSymbol (const QwtIntervalSymbol &)
           Copy constructor.
       virtual ~QwtIntervalSymbol ()
           Destructor.
       QwtIntervalSymbol & operator= (const QwtIntervalSymbol &)
           Assignment operator.
       bool operator== (const QwtIntervalSymbol &) const
           Compare two symbols.
       bool operator!= (const QwtIntervalSymbol &) const
           Compare two symbols.
       void setWidth (int)
       int width () const
       void setBrush (const QBrush &)
           Assign a brush.
       const QBrush & brush () const
       void setPen (const QColor &, qreal width=0.0,
           Qt::PenStyle=Qt::SolidLine)
       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

       Definition at line 27 of file qwt_interval_symbol.h.

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.

       Definition at line 31 of file qwt_interval_symbol.h.

Constructor & Destructor Documentation
   QwtIntervalSymbol::QwtIntervalSymbol (Style style = NoSymbol) [explicit]
       Constructor

       Parameters
           style Style of the symbol

       See also
           setStyle(), style(), Style

       Definition at line 47 of file qwt_interval_symbol.cpp.

Member Function Documentation
   const QBrush & QwtIntervalSymbol::brush () const
       Returns
           Brush

       See also
           setBrush()

       Definition at line 146 of file qwt_interval_symbol.cpp.

   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
           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()

       Definition at line 200 of file qwt_interval_symbol.cpp.

   const QPen & QwtIntervalSymbol::pen () const
       Returns
           Pen

       See also
           setPen(), brush()

       Definition at line 185 of file qwt_interval_symbol.cpp.

   void QwtIntervalSymbol::setBrush (const QBrush & brush)
       Assign a brush. The brush is used for the Box style.

       Parameters
           brush Brush

       See also
           brush()

       Definition at line 137 of file qwt_interval_symbol.cpp.

   void QwtIntervalSymbol::setPen (const QColor & color, qreal width = 0.0,
       Qt::PenStyle style = Qt::SolidLine)
       Build and assign a pen

       In Qt5 the default pen width is 1.0 ( 0.0 in Qt4 ) what makes it non
       cosmetic ( see QPen::isCosmetic() ). This method has been introduced to
       hide this incompatibility.

       Parameters
           color Pen color
           width Pen width
           style Pen style

       See also
           pen(), brush()

       Definition at line 164 of file qwt_interval_symbol.cpp.

   void QwtIntervalSymbol::setPen (const QPen & pen)
       Assign a pen

       Parameters
           pen Pen

       See also
           pen(), setBrush()

       Definition at line 176 of file qwt_interval_symbol.cpp.

   void QwtIntervalSymbol::setStyle (Style style)
       Specify the symbol style

       Parameters
           style Style

       See also
           style(), Style

       Definition at line 94 of file qwt_interval_symbol.cpp.

   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()

       Definition at line 115 of file qwt_interval_symbol.cpp.

   QwtIntervalSymbol::Style QwtIntervalSymbol::style () const
       Returns
           Current symbol style

       See also
           setStyle()

       Definition at line 103 of file qwt_interval_symbol.cpp.

   int QwtIntervalSymbol::width () const
       Returns
           Width of the symbol.

       See also
           setWidth(), setStyle()

       Definition at line 124 of file qwt_interval_symbol.cpp.


Author
       Generated automatically by Doxygen for Qwt User's Guide from the source
       code.

Version 6.2.0                   Sun Jul 18 2021           QwtIntervalSymbol(3)