Base class for needles that can be used in a QwtDial. More...
#include <qwt_dial_needle.h>
Public Member Functions | |
| virtual void | draw (QPainter *painter, const QPointF ¢er, double length, double direction, QPalette::ColorGroup=QPalette::Active) const |
| const QPalette & | palette () const |
| QwtDialNeedle () | |
| Constructor. | |
| virtual void | setPalette (const QPalette &) |
| virtual | ~QwtDialNeedle () |
| Destructor. | |
Protected Member Functions | |
| virtual void | drawKnob (QPainter *, double width, const QBrush &, bool sunken) const |
| Draw the knob. | |
| virtual void | drawNeedle (QPainter *painter, double length, QPalette::ColorGroup colorGroup) const =0 |
| Draw the needle. | |
Private Attributes | |
| QPalette | d_palette |
Detailed Description
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
Definition at line 28 of file qwt_dial_needle.h.
Constructor & Destructor Documentation
Constructor.
Definition at line 188 of file qwt_dial_needle.cpp.
| QwtDialNeedle::~QwtDialNeedle | ( | ) | [virtual] |
Destructor.
Definition at line 194 of file qwt_dial_needle.cpp.
Member Function Documentation
| 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
Definition at line 225 of file qwt_dial_needle.cpp.
| void QwtDialNeedle::drawKnob | ( | QPainter * | painter, |
| double | width, | ||
| const QBrush & | brush, | ||
| bool | sunken | ||
| ) | const [protected, virtual] |
Draw the knob.
Definition at line 240 of file qwt_dial_needle.cpp.
| virtual void QwtDialNeedle::drawNeedle | ( | QPainter * | painter, |
| double | length, | ||
| QPalette::ColorGroup | colorGroup | ||
| ) | const [protected, pure virtual] |
Draw the needle.
The origin of the needle is at position (0.0, 0.0 ) pointing in direction 0.0 ( = east ).
The painter is already initialized with translation and rotation.
- Parameters:
-
painter Painter length Length of the needle colorGroup Color group, used for painting
- See also:
- setPalette(), palette()
Implemented in QwtCompassWindArrow, QwtCompassMagnetNeedle, and QwtDialSimpleNeedle.
| const QPalette & QwtDialNeedle::palette | ( | ) | const |
- Returns:
- the palette of the needle.
Definition at line 211 of file qwt_dial_needle.cpp.
| void QwtDialNeedle::setPalette | ( | const QPalette & | palette | ) | [virtual] |
Sets the palette for the needle.
- Parameters:
-
palette New Palette
Definition at line 203 of file qwt_dial_needle.cpp.
Member Data Documentation
QPalette QwtDialNeedle::d_palette [private] |
Definition at line 66 of file qwt_dial_needle.h.
The documentation for this class was generated from the following files: