.TH "QwtCompassMagnetNeedle" 3 "Mon Aug 1 2011" "Version 5.2.2" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtCompassMagnetNeedle \- 
.PP
A magnet needle for compass widgets.  

.SH SYNOPSIS
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.PP
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\fC#include <qwt_dial_needle.h>\fP
.PP
Inherits \fBQwtDialNeedle\fP.
.SS "Public Types"

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.RI "enum \fBStyle\fP { \fBTriangleStyle\fP, \fBThinStyle\fP }"
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.SS "Public Member Functions"

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.RI "virtual void \fBdraw\fP (QPainter *, const QPoint &, int length, double direction, QPalette::ColorGroup=QPalette::Active) const "
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.RI "const QPalette & \fBpalette\fP () const "
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.RI "\fBQwtCompassMagnetNeedle\fP (\fBStyle\fP=TriangleStyle, const QColor &light=Qt::white, const QColor &dark=Qt::red)"
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.RI "virtual void \fBsetPalette\fP (const QPalette &)"
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.SS "Static Public Member Functions"

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.RI "static void \fBdrawThinNeedle\fP (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, double direction)"
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.RI "static void \fBdrawTriangleNeedle\fP (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, double direction)"
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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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.RI "static void \fBdrawPointer\fP (QPainter *painter, const QBrush &brush, int colorOffset, const QPoint &center, int length, int width, double direction)"
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.SH "Detailed Description"
.PP 
A magnet needle for compass widgets. 

A magnet needle points to two opposite directions indicating north and south.
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The following colors are used:
.IP "\(bu" 2
QColorGroup::Light
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 Used for pointing south
.IP "\(bu" 2
QColorGroup::Dark
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 Used for pointing north
.IP "\(bu" 2
QColorGroup::Base
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 Knob (ThinStyle only)
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\fBSee also:\fP
.RS 4
\fBQwtDial\fP, \fBQwtCompass\fP 
.RE
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.SH "Member Enumeration Documentation"
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.SS "enum \fBQwtCompassMagnetNeedle::Style\fP"
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Style of the needle. 
.SH "Constructor & Destructor Documentation"
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.SS "QwtCompassMagnetNeedle::QwtCompassMagnetNeedle (\fBStyle\fPstyle = \fCTriangleStyle\fP, const QColor &light = \fCQt::white\fP, const QColor &dark = \fCQt::red\fP)"
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Constructor. 
.SH "Member Function Documentation"
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.SS "void QwtCompassMagnetNeedle::draw (QPainter *painter, const QPoint &center, intlength, doubledirection, QPalette::ColorGroupcolorGroup = \fCQPalette::Active\fP) const\fC [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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\fIcolorGroup\fP Color group, used for painting 
.RE
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Implements \fBQwtDialNeedle\fP.
.SS "void QwtDialNeedle::drawKnob (QPainter *painter, const QPoint &pos, intwidth, const QBrush &brush, boolsunken)\fC [static, protected, inherited]\fP"
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Draw the knob. 
.SS "void QwtCompassMagnetNeedle::drawPointer (QPainter *painter, const QBrush &brush, intcolorOffset, const QPoint &center, intlength, intwidth, doubledirection)\fC [static, protected]\fP"Draw a compass needle
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIbrush\fP Brush 
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\fIcolorOffset\fP Color offset 
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\fIcenter\fP Center, where the needle starts 
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\fIlength\fP Length of the needle 
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\fIwidth\fP Width of the needle 
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\fIdirection\fP Direction 
.RE
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.SS "void QwtCompassMagnetNeedle::drawThinNeedle (QPainter *painter, const QPalette &palette, QPalette::ColorGroupcolorGroup, const QPoint &center, intlength, doubledirection)\fC [static]\fP"Draw a compass needle
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIpalette\fP Palette 
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\fIcolorGroup\fP Color group 
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\fIcenter\fP Center, where the needle starts 
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\fIlength\fP Length of the needle 
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\fIdirection\fP Direction 
.RE
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.SS "void QwtCompassMagnetNeedle::drawTriangleNeedle (QPainter *painter, const QPalette &palette, QPalette::ColorGroupcolorGroup, const QPoint &center, intlength, doubledirection)\fC [static]\fP"Draw a compass needle
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIpalette\fP Palette 
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\fIcolorGroup\fP Color group 
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\fIcenter\fP Center, where the needle starts 
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\fIlength\fP Length of the needle 
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\fIdirection\fP Direction 
.RE
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.SS "const QPalette & QwtDialNeedle::palette () const\fC [inherited]\fP"\fBReturns:\fP
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the palette of the needle. 
.RE
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.SS "void QwtDialNeedle::setPalette (const QPalette &palette)\fC [virtual, inherited]\fP"Sets the palette for the needle.
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\fBParameters:\fP
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\fIpalette\fP New Palette 
.RE
.PP


.SH "Author"
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