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

NAME

       QwtDialNeedle -

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

SYNOPSIS

       #include <qwt_dial_needle.h>

       Inherited by QwtCompassMagnetNeedle, QwtCompassWindArrow, and QwtDialSimpleNeedle.

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

   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

Constructor &; Destructor Documentation
   QwtDialNeedle::QwtDialNeedle ()
       Constructor.

   QwtDialNeedle::~QwtDialNeedle () [virtual]
       Destructor.

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 QwtDialSimpleNeedle, QwtCompassMagnetNeedle, and QwtCompassWindArrow.

   void QwtDialNeedle::drawKnob (QPainter *painter, const QPoint &pos, intwidth, const QBrush &brush, boolsunken) [static, protected]
       Draw the knob.

   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 5.2.2							  Mon Aug 1 2011						  QwtDialNeedle(3)