| Qwt User's Guide
    6.0.2
    | 
#include <qwt_compass.h>

| Public Member Functions | |
| QwtCompass (QWidget *parent=NULL) | |
| virtual | ~QwtCompass () | 
| const QMap< double, QString > & | labelMap () const | 
| QMap< double, QString > & | labelMap () | 
| const QwtCompassRose * | rose () const | 
| QwtCompassRose * | rose () | 
| void | setLabelMap (const QMap< double, QString > &map) | 
| void | setRose (QwtCompassRose *rose) | 
|  Public Member Functions inherited from QwtDial | |
| QwtDial (QWidget *parent=NULL) | |
| virtual | ~QwtDial () | 
| QRectF | boundingRect () const | 
| Direction | direction () const | 
| Shadow | frameShadow () const | 
| QRectF | innerRect () const | 
| int | lineWidth () const | 
| double | maxScaleArc () const | 
| virtual QSize | minimumSizeHint () const | 
| double | minScaleArc () const | 
| Mode | mode () const | 
| const QwtDialNeedle * | needle () const | 
| QwtDialNeedle * | needle () | 
| double | origin () const | 
| QwtDialScaleDraw * | scaleDraw () | 
| const QwtDialScaleDraw * | scaleDraw () const | 
| virtual QRectF | scaleInnerRect () const | 
| void | setDirection (Direction) | 
| void | setFrameShadow (Shadow) | 
| void | setLineWidth (int) | 
| void | setMode (Mode) | 
| virtual void | setNeedle (QwtDialNeedle *) | 
| virtual void | setOrigin (double) | 
| virtual void | setScale (int maxMajIntv, int maxMinIntv, double step=0.0) | 
| void | setScaleArc (double min, double max) | 
| void | setScaleComponents (QwtAbstractScaleDraw::ScaleComponents) | 
| virtual void | setScaleDraw (QwtDialScaleDraw *) | 
| void | setScaleTicks (int minLen, int medLen, int majLen, int penWidth=1) | 
| virtual void | setWrapping (bool) | 
| virtual QSize | sizeHint () const | 
| bool | wrapping () const | 
|  Public Member Functions inherited from QwtAbstractSlider | |
| QwtAbstractSlider (Qt::Orientation, QWidget *parent=NULL) | |
| virtual | ~QwtAbstractSlider () | 
| bool | isReadOnly () const | 
| bool | isValid () const | 
| virtual double | mass () const | 
| Qt::Orientation | orientation () const | 
| virtual void | setMass (double val) | 
| virtual void | setOrientation (Qt::Orientation o) | 
| void | setTracking (bool enable) | 
| void | setUpdateTime (int t) | 
| void | setValid (bool valid) | 
| void | stopMoving () | 
|  Public Member Functions inherited from QwtDoubleRange | |
| QwtDoubleRange () | |
| virtual | ~QwtDoubleRange () | 
| virtual void | incPages (int) | 
| double | maxValue () const | 
| double | minValue () const | 
| int | pageSize () const | 
| bool | periodic () const | 
| void | setPeriodic (bool tf) | 
| void | setRange (double vmin, double vmax, double vstep=0.0, int pagesize=1) | 
| void | setStep (double) | 
| double | step () const | 
| double | value () const | 
| Protected Member Functions | |
| virtual void | drawRose (QPainter *, const QPointF ¢er, double radius, double north, QPalette::ColorGroup) const | 
| virtual void | drawScaleContents (QPainter *, const QPointF ¢er, double radius) const | 
| virtual void | keyPressEvent (QKeyEvent *) | 
| virtual QwtText | scaleLabel (double value) const | 
|  Protected Member Functions inherited from QwtDial | |
| virtual void | drawContents (QPainter *) const | 
| virtual void | drawFocusIndicator (QPainter *) const | 
| virtual void | drawFrame (QPainter *p) | 
| virtual void | drawNeedle (QPainter *, const QPointF &, double radius, double direction, QPalette::ColorGroup) const | 
| virtual void | drawScale (QPainter *, const QPointF ¢er, double radius, double origin, double arcMin, double arcMax) const | 
| virtual void | getScrollMode (const QPoint &, QwtAbstractSlider::ScrollMode &, int &direction) const | 
| virtual double | getValue (const QPoint &) | 
| virtual void | paintEvent (QPaintEvent *) | 
| virtual void | rangeChange () | 
| void | updateScale () | 
| virtual void | valueChange () | 
|  Protected Member Functions inherited from QwtAbstractSlider | |
| virtual void | mouseMoveEvent (QMouseEvent *e) | 
| double | mouseOffset () const | 
| virtual void | mousePressEvent (QMouseEvent *e) | 
| virtual void | mouseReleaseEvent (QMouseEvent *e) | 
| int | scrollMode () const | 
| void | setMouseOffset (double) | 
| virtual void | setPosition (const QPoint &) | 
| virtual void | timerEvent (QTimerEvent *e) | 
| virtual void | wheelEvent (QWheelEvent *e) | 
|  Protected Member Functions inherited from QwtDoubleRange | |
| double | exactPrevValue () const | 
| double | exactValue () const | 
| double | prevValue () const | 
| virtual void | stepChange () | 
| Additional Inherited Members | |
|  Public Types inherited from QwtDial | |
| enum | Direction { Clockwise, CounterClockwise } | 
| enum | Mode { RotateNeedle, RotateScale } | 
| enum | Shadow { Plain = QFrame::Plain, Raised = QFrame::Raised, Sunken = QFrame::Sunken } | 
|  Public Types inherited from QwtAbstractSlider | |
| enum | ScrollMode { ScrNone, ScrMouse, ScrTimer, ScrDirect, ScrPage } | 
A Compass Widget.
QwtCompass is a widget to display and enter directions. It consists of a scale, an optional needle and rose.
 
| 
 | explicit | 
Constructor.
| parent | Parent widget | 
Create a compass widget with a scale, no needle and no rose. The default origin is 270.0 with no valid value. It accepts mouse and keyboard inputs and has no step size. The default mode is QwtDial::RotateNeedle.
| 
 | protectedvirtual | 
Draw the compass rose
| painter | Painter | 
| center | Center of the compass | 
| radius | of the circle, where to paint the rose | 
| north | Direction pointing north, in degrees counter clockwise | 
| cg | Color group | 
| 
 | protectedvirtual | 
Draw the contents of the scale
| painter | Painter | 
| center | Center of the content circle | 
| radius | Radius of the content circle | 
Reimplemented from QwtDial.
| 
 | protectedvirtual | 
Handles key events
Beside the keys described in QwtDial::keyPressEvent numbers from 1-9 (without 5) set the direction according to their position on the num pad.
Reimplemented from QwtDial.
| const QMap< double, QString > & QwtCompass::labelMap | ( | ) | const | 
| QMap< double, QString > & QwtCompass::labelMap | ( | ) | 
| const QwtCompassRose * QwtCompass::rose | ( | ) | const | 
| QwtCompassRose * QwtCompass::rose | ( | ) | 
| 
 | protectedvirtual | 
Map a value to a corresponding label
| value | Value that will be mapped | 
label() looks in a map for a corresponding label for value or return an null text.
Reimplemented from QwtDial.
| void QwtCompass::setLabelMap | ( | const QMap< double, QString > & | map | ) | 
Set a map, mapping values to labels.
| map | value to label map | 
The values of the major ticks are found by looking into this map. The default map consists of the labels N, NE, E, SE, S, SW, W, NW.
| void QwtCompass::setRose | ( | QwtCompassRose * | rose | ) | 
Set a rose for the compass
| rose | Compass rose | 
 1.8.1
 1.8.1