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


NAME

       QwtDialNeedle -


SYNOPSIS

       #include <qwt_dial_needle.h>

       Inherited by QwtCompassMagnetNeedle, QwtCompassWindArrow, and
       QwtDialSimpleNeedle.

   Public Member Functions
       QwtDialNeedle ()
       virtual ~QwtDialNeedle ()
       virtual void draw (QPainter *painter, const QPoint ¢er, int length,
           double direction, QPalette::ColorGroup cg=QPalette::Active) const
           =0
       const QPalette & palette () const
       virtual void setPalette (const QPalette &)

   Static Protected Member Functions
       static void drawKnob (QPainter *, const QPoint &pos, int width, const
           QBrush &, bool sunken)

Detailed Description
       Base class for needles that can be used in a QwtDial.

       QwtDialNeedle is a pointer that indicates a value by pointing to a
       specific direction.

       Qwt is missing a set of good looking needles. Contributions are very
       welcome.

       See also:
           QwtDial, QwtCompass

Member Function Documentation
   virtual void QwtDialNeedle::draw (QPainter *painter, const QPoint ¢er,
       intlength, doubledirection, QPalette::ColorGroupcg = QPalette::Active)
       const [pure virtual]
       Draw the needle

       Parameters:
           painter Painter
           center Center of the dial, start position for the needle
           length Length of the needle
           direction Direction of the needle, in degrees counter clockwise
           cg Color group, used for painting

       Implemented in QwtCompassWindArrow, QwtCompassMagnetNeedle, and
       QwtDialSimpleNeedle.

   const QPalette & QwtDialNeedle::palette () const
       Returns:
           the palette of the needle.

   void QwtDialNeedle::setPalette (const QPalette &palette) [virtual]
       Sets the palette for the needle.

       Parameters:
           palette New Palette

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

Version 5.2.3                   Tue Nov 20 2012               QwtDialNeedle(3)

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