| Qwt User's Guide
    6.2.0
    | 
A needle for dial widgets. More...
#include <qwt_dial_needle.h>
| 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 | 
|  Public Member Functions inherited from QwtDialNeedle | |
| QwtDialNeedle () | |
| Constructor. | |
| virtual | ~QwtDialNeedle () | 
| Destructor. | |
| virtual void | setPalette (const QPalette &) | 
| const QPalette & | palette () const | 
| virtual void | draw (QPainter *, const QPointF ¢er, double length, double direction, QPalette::ColorGroup=QPalette::Active) const | 
| Protected Member Functions | |
| virtual void | drawNeedle (QPainter *, double length, QPalette::ColorGroup) const override | 
|  Protected Member Functions inherited from QwtDialNeedle | |
| virtual void | drawKnob (QPainter *, double width, const QBrush &, bool sunken) const | 
| Draw the knob. | |
A needle for dial widgets.
The following colors are used:
Definition at line 81 of file qwt_dial_needle.h.
Style of the needle.
| Enumerator | |
|---|---|
| Arrow | Arrow. | 
| Ray | A straight line from the center. | 
Definition at line 85 of file qwt_dial_needle.h.
| QwtDialSimpleNeedle::QwtDialSimpleNeedle | ( | Style | style, | 
| bool | hasKnob = true, | ||
| const QColor & | mid = Qt::gray, | ||
| const QColor & | base = Qt::darkGray | ||
| ) | 
Constructor
| style | Style | 
| hasKnob | With/Without knob | 
| mid | Middle color | 
| base | Base color | 
Definition at line 273 of file qwt_dial_needle.cpp.
| 
 | overrideprotectedvirtual | 
Draw the needle
| painter | Painter | 
| length | Length of the needle | 
| colorGroup | Color group, used for painting | 
Implements QwtDialNeedle.
Definition at line 312 of file qwt_dial_needle.cpp.
| void QwtDialSimpleNeedle::setWidth | ( | double | width | ) | 
Set the width of the needle
| width | Width | 
Definition at line 291 of file qwt_dial_needle.cpp.
| double QwtDialSimpleNeedle::width | ( | ) | const | 
Definition at line 300 of file qwt_dial_needle.cpp.