QwtDialNeedle Class Reference

Inheritance diagram for QwtDialNeedle:

[legend]List of all members.

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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

Definition at line 31 of file qwt_dial_needle.h.

Public Member Functions
	QwtDialNeedle ()
virtual	~QwtDialNeedle ()
virtual void	draw (QPainter *painter, const QPoint &center, int length, double direction, QPalette::ColorGroup cg=QPalette::Active) const =0
virtual void	setPalette (const QPalette &)
const QPalette &	palette () const
Static Protected Member Functions
static void	drawKnob (QPainter *, const QPoint &pos, int width, const QBrush &, bool sunken)

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Constructor & Destructor Documentation

QwtDialNeedle::QwtDialNeedle (   )

Constructor. Definition at line 25 of file qwt_dial_needle.cpp.

QwtDialNeedle::~QwtDialNeedle (   )  [virtual]

Destructor. Definition at line 31 of file qwt_dial_needle.cpp.

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Member Function Documentation

virtual void QwtDialNeedle::draw (  QPainter *  painter, const QPoint &  center, int  length, double  direction, QPalette::ColorGroup  cg = 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. Referenced by QwtAnalogClock::drawHand().

void QwtDialNeedle::drawKnob (  QPainter *  , const QPoint &  pos, int  width, const QBrush &  , bool  sunken )  [static, protected]

Draw the knob. Definition at line 54 of file qwt_dial_needle.cpp. Referenced by QwtDialSimpleNeedle::drawArrowNeedle(), QwtDialSimpleNeedle::drawRayNeedle(), and QwtCompassMagnetNeedle::drawThinNeedle().

const QPalette & QwtDialNeedle::palette (   )  const

Returns: the palette of the needle. Definition at line 48 of file qwt_dial_needle.cpp. Referenced by QwtCompassWindArrow::draw(), QwtCompassMagnetNeedle::draw(), QwtDialSimpleNeedle::draw(), QwtCompassMagnetNeedle::QwtCompassMagnetNeedle(), QwtCompassWindArrow::QwtCompassWindArrow(), and QwtDialSimpleNeedle::QwtDialSimpleNeedle().

void QwtDialNeedle::setPalette (  const QPalette &  palette  )  [virtual]

Sets the palette for the needle. Parameters: palette  New Palette Definition at line 40 of file qwt_dial_needle.cpp.

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