Sources_For_Linux/Qwt/doc/man/man3/QwtDialSimpleNeedle.3

.TH "QwtDialSimpleNeedle" 3 "Mon Dec 28 2020" "Version 6.1.6" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtDialSimpleNeedle \- A needle for dial widgets\&.  

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

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.RI "enum \fBStyle\fP { \fBArrow\fP, \fBRay\fP }"
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.RI "Style of the needle\&. "
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.SS "Public Member Functions"

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.RI "\fBQwtDialSimpleNeedle\fP (\fBStyle\fP, bool hasKnob=true, const QColor &mid=Qt::gray, const QColor &base=Qt::darkGray)"
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.RI "void \fBsetWidth\fP (double \fBwidth\fP)"
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.RI "double \fBwidth\fP () const"
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.SS "Protected Member Functions"

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.RI "virtual void \fBdrawNeedle\fP (QPainter *, double length, QPalette::ColorGroup) const"
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.SH "Detailed Description"
.PP 
A needle for dial widgets\&. 

The following colors are used:
.PP
.IP "\(bu" 2
QPalette::Mid
.br
 Pointer
.IP "\(bu" 2
QPalette::Base
.br
 Knob
.PP
.PP
\fBSee also\fP
.RS 4
\fBQwtDial\fP, \fBQwtCompass\fP 
.RE
.PP

.SH "Member Enumeration Documentation"
.PP 
.SS "enum \fBQwtDialSimpleNeedle::Style\fP"

.PP
Style of the needle\&. 
.PP
\fBEnumerator\fP
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.TP
\fB\fIArrow \fP\fP
Arrow\&. 
.TP
\fB\fIRay \fP\fP
A straight line from the center\&. 
.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtDialSimpleNeedle::QwtDialSimpleNeedle (\fBStyle\fP style, bool hasKnob = \fCtrue\fP, const QColor & mid = \fCQt::gray\fP, const QColor & base = \fCQt::darkGray\fP)"
Constructor
.PP
\fBParameters\fP
.RS 4
\fIstyle\fP Style 
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\fIhasKnob\fP With/Without knob 
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\fImid\fP Middle color 
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\fIbase\fP Base color 
.RE
.PP

.SH "Member Function Documentation"
.PP 
.SS "void QwtDialSimpleNeedle::drawNeedle (QPainter * painter, double length, QPalette::ColorGroup colorGroup) const\fC [protected]\fP, \fC [virtual]\fP"
Draw the needle
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\fBParameters\fP
.RS 4
\fIpainter\fP Painter 
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\fIlength\fP Length of the needle 
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\fIcolorGroup\fP Color group, used for painting 
.RE
.PP

.PP
Implements \fBQwtDialNeedle\fP\&.
.SS "void QwtDialSimpleNeedle::setWidth (double width)"
Set the width of the needle 
.PP
\fBParameters\fP
.RS 4
\fIwidth\fP Width 
.RE
.PP
\fBSee also\fP
.RS 4
\fBwidth()\fP 
.RE
.PP

.SS "double QwtDialSimpleNeedle::width () const"

.PP
\fBReturns\fP
.RS 4
the width of the needle 
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetWidth()\fP 
.RE
.PP


.SH "Author"
.PP 
Generated automatically by Doxygen for Qwt User's Guide from the source code\&.