.TH "QwtDialNeedle" 3 "Mon Aug 1 2011" "Version 5.2.2" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtDialNeedle \- 
.PP
Base class for needles that can be used in a \fBQwtDial\fP.  

.SH SYNOPSIS
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.PP
.PP
\fC#include <qwt_dial_needle.h>\fP
.PP
Inherited by \fBQwtCompassMagnetNeedle\fP, \fBQwtCompassWindArrow\fP, and \fBQwtDialSimpleNeedle\fP.
.SS "Public Member Functions"

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.RI "virtual void \fBdraw\fP (QPainter *painter, const QPoint &center, int length, double direction, QPalette::ColorGroup cg=QPalette::Active) const =0"
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.RI "const QPalette & \fBpalette\fP () const "
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.RI "\fBQwtDialNeedle\fP ()"
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.RI "virtual void \fBsetPalette\fP (const QPalette &)"
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.RI "virtual \fB~QwtDialNeedle\fP ()"
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.SS "Static Protected Member Functions"

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.RI "static void \fBdrawKnob\fP (QPainter *, const QPoint &pos, int width, const QBrush &, bool sunken)"
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.SH "Detailed Description"
.PP 
Base class for needles that can be used in a \fBQwtDial\fP. 

\fBQwtDialNeedle\fP is a pointer that indicates a value by pointing to a specific direction.
.PP
Qwt is missing a set of good looking needles. Contributions are very welcome.
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\fBSee also:\fP
.RS 4
\fBQwtDial\fP, \fBQwtCompass\fP 
.RE
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.SH "Constructor & Destructor Documentation"
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.SS "QwtDialNeedle::QwtDialNeedle ()"
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Constructor. 
.SS "QwtDialNeedle::~QwtDialNeedle ()\fC [virtual]\fP"
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Destructor. 
.SH "Member Function Documentation"
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.SS "virtual void QwtDialNeedle::draw (QPainter *painter, const QPoint &center, intlength, doubledirection, QPalette::ColorGroupcg = \fCQPalette::Active\fP) const\fC [pure virtual]\fP"Draw the needle
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIcenter\fP Center of the dial, start position for the needle 
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\fIlength\fP Length of the needle 
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\fIdirection\fP Direction of the needle, in degrees counter clockwise 
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\fIcg\fP Color group, used for painting 
.RE
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Implemented in \fBQwtDialSimpleNeedle\fP, \fBQwtCompassMagnetNeedle\fP, and \fBQwtCompassWindArrow\fP.
.SS "void QwtDialNeedle::drawKnob (QPainter *painter, const QPoint &pos, intwidth, const QBrush &brush, boolsunken)\fC [static, protected]\fP"
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Draw the knob. 
.SS "const QPalette & QwtDialNeedle::palette () const"\fBReturns:\fP
.RS 4
the palette of the needle. 
.RE
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.SS "void QwtDialNeedle::setPalette (const QPalette &palette)\fC [virtual]\fP"Sets the palette for the needle.
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\fBParameters:\fP
.RS 4
\fIpalette\fP New Palette 
.RE
.PP


.SH "Author"
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