A needle for dial widgets.  
 More...
#include <qwt_dial_needle.h>
|  | 
| virtual void | drawNeedle (QPainter *, double length, QPalette::ColorGroup) const | 
|  | 
| virtual void | drawKnob (QPainter *, double width, const QBrush &, bool sunken) const | 
|  | Draw the knob. 
 | 
|  | 
A needle for dial widgets. 
The following colors are used:
- QPalette::Mid
 Pointer
- QPalette::Base
 Knob
- See also
- QwtDial, QwtCompass 
Style of the needle. 
| Enumerator | 
|---|
| Arrow | Arrow.  | 
| Ray | A straight line from the center.  | 
 
 
      
        
          | QwtDialSimpleNeedle::QwtDialSimpleNeedle | ( | Style | style, | 
        
          |  |  | bool | hasKnob = 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 |  
 
 
 
  
  | 
        
          | void QwtDialSimpleNeedle::drawNeedle | ( | QPainter * | painter, |  
          |  |  | double | length, |  
          |  |  | QPalette::ColorGroup | colorGroup |  
          |  | ) |  | const |  | protectedvirtual | 
 
Draw the needle
- Parameters
- 
  
    | painter | Painter |  | length | Length of the needle |  | colorGroup | Color group, used for painting |  
 
Implements QwtDialNeedle.
 
 
      
        
          | void QwtDialSimpleNeedle::setWidth | ( | double | width | ) |  | 
      
 
Set the width of the needle 
- Parameters
- 
  
  
- See also
- width() 
 
 
      
        
          | double QwtDialSimpleNeedle::width | ( |  | ) | const |