NAME

       QwtCompassMagnetNeedle - A magnet needle for compass widgets.

SYNOPSIS

       #include <qwt_dial_needle.h>

       Inherits QwtDialNeedle.

   Public Types
       enum Style { TriangleStyle, ThinStyle }
           Style of the needle.

   Public Member Functions
       QwtCompassMagnetNeedle (Style=TriangleStyle, const QColor &light=Qt::white, const QColor &dark=Qt::red)
           Constructor.

   Protected Member Functions
       virtual void drawNeedle (QPainter *, double length, QPalette::ColorGroup) const

Detailed Description

       A magnet needle for compass widgets.

       A magnet needle points to two opposite directions indicating north and south.

       The following colors are used:

       • QPalette::Light
          Used for pointing south

       • QPalette::Dark
          Used for pointing north

       • QPalette::Base
          Knob (ThinStyle only)

       See also:
           QwtDial, QwtCompass

Member Enumeration Documentation

   enum QwtCompassMagnetNeedle::Style
       Style of the needle.

       Enumerator

       TriangleStyle
              A needle with a triangular shape.

       ThinStyle
              A thin needle.

Member Function Documentation

   void  QwtCompassMagnetNeedle::drawNeedle (QPainter * painter, double length, QPalette::ColorGroup colorGroup)
       const [protected],  [virtual]
       Draw the needle

       Parameters:
           painter Painter
           length Length of the needle
           colorGroup Color group, used for painting

       Implements QwtDialNeedle.

Author

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

Version 6.1.4                                    Wed Jan 2 2019                        QwtCompassMagnetNeedle(3)