Base class for needles that can be used in a QwtDial.  
 More...
#include <qwt_dial_needle.h>
|  | 
|  | QwtDialNeedle () | 
|  | Constructor. 
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|  | 
| virtual | ~QwtDialNeedle () | 
|  | Destructor. 
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|  | 
| virtual void | setPalette (const QPalette &) | 
|  | 
| const QPalette & | palette () const | 
|  | 
| virtual void | draw (QPainter *painter, const QPointF ¢er, double length, double direction, QPalette::ColorGroup=QPalette::Active) const | 
|  | 
|  | 
| virtual void | drawNeedle (QPainter *painter, double length, QPalette::ColorGroup colorGroup) const  =0 | 
|  | Draw the needle.  More... 
 | 
|  | 
| virtual void | drawKnob (QPainter *, double width, const QBrush &, bool sunken) const | 
|  | Draw the knob. 
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|  | 
Base class for needles that can be used in a QwtDial. 
QwtDialNeedle is a pointer that indicates a value by pointing to a specific direction.
- See also
- QwtDial, QwtCompass 
  
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          | void QwtDialNeedle::draw | ( | QPainter * | painter, |  
          |  |  | const QPointF & | center, |  
          |  |  | double | length, |  
          |  |  | double | direction, |  
          |  |  | QPalette::ColorGroup | colorGroup = QPalette::Active |  
          |  | ) |  | const |  | virtual | 
 
Draw the needle
- Parameters
- 
  
    | painter | Painter |  | center | Center of the dial, start position for the needle |  | length | Length of the needle |  | direction | Direction of the needle, in degrees counter clockwise |  | colorGroup | Color group, used for painting |  
 
 
 
  
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          | virtual void QwtDialNeedle::drawNeedle | ( | QPainter * | painter, |  
          |  |  | double | length, |  
          |  |  | QPalette::ColorGroup | colorGroup |  
          |  | ) |  | const |  | protectedpure virtual | 
 
 
      
        
          | const QPalette & QwtDialNeedle::palette | ( |  | ) | const | 
      
 
- Returns
- the palette of the needle. 
 
 
  
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          | void QwtDialNeedle::setPalette | ( | const QPalette & | palette | ) |  |  | virtual | 
 
Sets the palette for the needle.
- Parameters
-