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:

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: 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:¶

void QwtDialNeedle::setPalette (const QPalette &palette) [virtual] Sets the palette for the needle.¶

Parameters:

Author¶

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