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Qwt User's Guide
6.2.0
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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, |
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| const QColor & | mid = Qt::gray, |
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| const QColor & | base = Qt::darkGray |
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| ) |
Constructor
| style | Style |
| hasKnob | With/Without knob |
| mid | Middle color |
| base | Base color |
Definition at line 273 of file qwt_dial_needle.cpp.
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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.