qwtcompassmagnetneedle.3

来自「This a framework to test new ideas in tr」· 3 代码 · 共 102 行

.TH "QwtCompassMagnetNeedle" 3 "4 Nov 2003" "Qwt User's Guide" \" -*- nroff -*-
.ad l
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.SH NAME
QwtCompassMagnetNeedle \- 
.SH SYNOPSIS
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.PP
Inherits \fBQwtDialNeedle\fP.
.PP
.SH "Detailed Description"
.PP 
A magnet needle for compass widgets. 

A magnet needle points to two opposite directions indicating north and south.
.PP
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)
.PP
.PP
\fBSee also:\fP
.RS 4
\fBQwtDial\fP, \fBQwtCompass\fP 
.RE
.PP

.PP
.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 "\fBQwtCompassMagnetNeedle\fP (Style=TriangleStyle, const  QColor &light=Qt::white, const  QColor &dark=Qt::red)"
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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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.SS "Static Public Member Functions"

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.RI "void \fBdrawTriangleNeedle\fP (QPainter *, const  QColorGroup &, const  QPoint &, int length, double direction)"
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.RI "void \fBdrawThinNeedle\fP (QPainter *, const  QColorGroup &, const  QPoint &, int length, double direction)"
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.SS "Static Protected Member Functions"

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.RI "void \fBdrawPointer\fP (QPainter *painter, const  QBrush &brush, int colorOffset, const  QPoint &center, int length, int width, double direction)"
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.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtCompassMagnetNeedle::QwtCompassMagnetNeedle (Style = TriangleStyle, const QColor & light = Qt::white, const QColor & dark = Qt::red)"
.PP
Constructor. 
.SH "Member Function Documentation"
.PP 
.SS "void QwtCompassMagnetNeedle::draw (QPainter * painter, const QPoint & center, int length, double direction, QPalette::ColorGroup cg = QPalette::Active) const\fC [virtual]\fP"
.PP
Draw the needle
.PP
\fBParameters:\fP
.RS 4
\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
.PP
Implements \fBQwtDialNeedle\fP.

.SH "Author"
.PP 
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