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 &center, 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 &center, 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.