QwtDialSimpleNeedle (3) - Linux Manuals

NAME

QwtDialSimpleNeedle -

A needle for dial widgets.

SYNOPSIS

#include <qwt_dial_needle.h>

Inherits QwtDialNeedle.

Public Types

enum Style { Arrow, Ray }
Style of the needle.

Public Member Functions

QwtDialSimpleNeedle (Style, bool hasKnob=true, const QColor &mid=Qt::gray, const QColor &base=Qt::darkGray)

void setWidth (double width)

double width () const

Protected Member Functions

virtual void drawNeedle (QPainter *, double length, QPalette::ColorGroup) const

Detailed Description

A needle for dial widgets.

The following colors are used:

•

QPalette::Mid

 Pointer

•

QPalette::Base

 Knob

See Also:

QwtDial, QwtCompass

Member Enumeration Documentation

enum QwtDialSimpleNeedle::Style

Style of the needle.

Enumerator

Arrow

Arrow.

Ray

A straight line from the center.

Constructor & Destructor Documentation

QwtDialSimpleNeedle::QwtDialSimpleNeedle (Stylestyle, boolhasKnob = true, const QColor &mid = Qt::gray, const QColor &base = Qt::darkGray)

Constructor

Parameters:

style Style
hasKnob With/Without knob
mid Middle color
base Base color

Member Function Documentation

void QwtDialSimpleNeedle::drawNeedle (QPainter *painter, doublelength, QPalette::ColorGroupcolorGroup) const [protected], [virtual]

Draw the needle

Parameters:

painter Painter
length Length of the needle
colorGroup Color group, used for painting

Implements QwtDialNeedle.

void QwtDialSimpleNeedle::setWidth (doublewidth)

Set the width of the needle

Parameters:

width Width

See Also:

width()

double QwtDialSimpleNeedle::width () const

Returns:

the width of the needle

See Also:

setWidth()

Author

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