Qwt User's Guide
QwtDialSimpleNeedle Class Reference

A needle for dial widgets. More...

#include <qwt_dial_needle.h>

Inheritance diagram for QwtDialSimpleNeedle:

Public Types

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

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

Style of the needle.

Enumerator:
Arrow 

Arrow.

Ray 

A straight line from the center.


Constructor & Destructor Documentation

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

Constructor

Parameters:
styleStyle
hasKnobWith/Without knob
midMiddle color
baseBase color

Member Function Documentation

void QwtDialSimpleNeedle::drawNeedle ( QPainter *  painter,
double  length,
QPalette::ColorGroup  colorGroup 
) const [protected, virtual]

Draw the needle

Parameters:
painterPainter
lengthLength of the needle
colorGroupColor group, used for painting

Implements QwtDialNeedle.

void QwtDialSimpleNeedle::setWidth ( double  width)

Set the width of the needle

Parameters:
widthWidth
See also:
width()
double QwtDialSimpleNeedle::width ( ) const
Returns:
the width of the needle
See also:
setWidth()

List of all members.

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