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


NAME

       QwtCompassMagnetNeedle -


SYNOPSIS

       #include <qwt_dial_needle.h>

       Inherits QwtDialNeedle.

   Public Types
       enum Style { TriangleStyle, ThinStyle }

   Public Member Functions
       QwtCompassMagnetNeedle (Style=TriangleStyle, const QColor
           &light=Qt::white, const QColor &dark=Qt::red)
       virtual void draw (QPainter *, const QPoint &, int length, double
           direction, QPalette::ColorGroup=QPalette::Active) const

   Static Public Member Functions
       static void drawThinNeedle (QPainter *, const QPalette &,
           QPalette::ColorGroup, const QPoint &, int length, double direction)
       static void drawTriangleNeedle (QPainter *, const QPalette &,
           QPalette::ColorGroup, const QPoint &, int length, double direction)

   Static Protected Member Functions
       static void drawPointer (QPainter *painter, const QBrush &brush, int
           colorOffset, const QPoint ¢er, int length, int width, double
           direction)

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:

       o QColorGroup::Light
          Used for pointing south

       o QColorGroup::Dark
          Used for pointing north

       o QColorGroup::Base
          Knob (ThinStyle only)

       See also:
           QwtDial, QwtCompass

Member Function Documentation
   void QwtCompassMagnetNeedle::draw (QPainter *painter, const QPoint ¢er,
       intlength, doubledirection, QPalette::ColorGroupcolorGroup =
       QPalette::Active) const [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
           colorGroup Color group, used for painting

       Implements QwtDialNeedle.

   void QwtCompassMagnetNeedle::drawPointer (QPainter *painter, const QBrush
       &brush, intcolorOffset, const QPoint ¢er, intlength, intwidth,
       doubledirection) [static],  [protected]
       Draw a compass needle

       Parameters:
           painter Painter
           brush Brush
           colorOffset Color offset
           center Center, where the needle starts
           length Length of the needle
           width Width of the needle
           direction Direction

   void QwtCompassMagnetNeedle::drawThinNeedle (QPainter *painter, const
       QPalette &palette, QPalette::ColorGroupcolorGroup, const QPoint
       ¢er, intlength, doubledirection) [static]
       Draw a compass needle

       Parameters:
           painter Painter
           palette Palette
           colorGroup Color group
           center Center, where the needle starts
           length Length of the needle
           direction Direction

   void QwtCompassMagnetNeedle::drawTriangleNeedle (QPainter *painter, const
       QPalette &palette, QPalette::ColorGroupcolorGroup, const QPoint
       ¢er, intlength, doubledirection) [static]
       Draw a compass needle

       Parameters:
           painter Painter
           palette Palette
           colorGroup Color group
           center Center, where the needle starts
           length Length of the needle
           direction Direction

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

Version 5.2.3                   Tue Nov 20 2012      QwtCompassMagnetNeedle(3)

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