Man page - qwtcompassmagnetneedle(3)
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Manual
QwtCompassMagnetNeedle
NAMESYNOPSIS
Public Types
Public Member Functions
Protected Member Functions
Detailed Description
Member Enumeration Documentation
enum QwtCompassMagnetNeedle::Style
Member Function Documentation
void QwtCompassMagnetNeedle::drawNeedle (QPainter * painter, double length,QPalette::ColorGroup colorGroup) const [protected], [virtual]
Author
NAME
QwtCompassMagnetNeedle - A magnet needle for compass widgets.
SYNOPSIS
#include <qwt_dial_needle.h>
Inherits QwtDialNeedle .
Public Types
enum
Style
{
TriangleStyle
,
ThinStyle
}
Style of the needle.
Public Member Functions
QwtCompassMagnetNeedle
(
Style
=
TriangleStyle
, const QColor
&light=Qt::white, const QColor &dark=Qt::red)
Constructor.
Protected Member Functions
virtual void drawNeedle (QPainter *, double length, QPalette::ColorGroup) const
Detailed Description
A magnet needle for compass widgets.
A magnet needle points to two opposite directions indicating north and south.
The following colors are used:
|
• |
QPalette::Light |
Used for pointing south
|
• |
QPalette::Dark |
Used for pointing north
|
• |
QPalette::Base |
Knob (ThinStyle only)
See also:
QwtDial , QwtCompass
Member Enumeration Documentation
enum QwtCompassMagnetNeedle::Style
Style of the needle.
Enumerator
TriangleStyle
A needle with a triangular shape.
ThinStyle
A thin needle.
Member Function Documentation
void QwtCompassMagnetNeedle::drawNeedle (QPainter * painter, double length,QPalette::ColorGroup colorGroup) const [protected], [virtual]
Draw the needle
Parameters:
painter
Painter
length
Length of the needle
colorGroup
Color group, used for painting
Implements QwtDialNeedle .
Author
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