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NAME

       QwtCompassMagnetNeedle -

SYNOPSIS

       Inherits QwtDialNeedle.

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:

       · QColorGroup::Light
          Used for pointing south

       · QColorGroup::Dark
          Used for pointing north

       · QColorGroup::Base
          Knob (ThinStyle only)

       See also:
           QwtDial, QwtCompass

       Definition at line 123 of file qwt_dial_needle.h.

   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
       void drawTriangleNeedle (QPainter *, const QColorGroup &, const QPoint
           &, int length, double direction)
       void drawThinNeedle (QPainter *, const QColorGroup &, const QPoint &,
           int length, double direction)

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

Constructor & Destructor Documentation

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

       Definition at line 268 of file qwt_dial_needle.cpp.

       References QwtDialNeedle::setPalette().

Member Function Documentation

   void QwtCompassMagnetNeedle::draw (QPainter * painter, const QPoint &
       center, int length, double direction, QPalette::ColorGroup cg =
       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
           cg Color group, used for painting

       Implements QwtDialNeedle.

       Definition at line 295 of file qwt_dial_needle.cpp.

       References QwtDialNeedle::colorGroup(), drawThinNeedle(), and
       drawTriangleNeedle().

   void QwtCompassMagnetNeedle::drawPointer (QPainter * painter, const QBrush
       & brush, int colorOffset, const QPoint & center, int length, int width,
       double direction) [static, protected]
       Draw a compass needle Definition at line 394 of file
       qwt_dial_needle.cpp.

       Referenced by drawThinNeedle().

   void QwtCompassMagnetNeedle::drawThinNeedle (QPainter * painter, const
       QColorGroup & cg, const QPoint & center, int length, double direction)
       [static]
       Draw a compass needle Definition at line 369 of file
       qwt_dial_needle.cpp.

       References QwtDialNeedle::drawKnob(), and drawPointer().

       Referenced by draw().

   void QwtCompassMagnetNeedle::drawTriangleNeedle (QPainter * painter, const
       QColorGroup & cg, const QPoint & center, int length, double direction)
       [static]
       Draw a compass needle Definition at line 313 of file
       qwt_dial_needle.cpp.

       Referenced by draw().

Author

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