#include <qwt_compass.h>

Inheritance diagram for QwtCompass:

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 ()
QRect	boundingRect () const
QRect	contentsRect () const
Direction	direction () const
Shadow	frameShadow () const
bool	hasVisibleBackground () 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
virtual QRect	scaleContentsRect () const
QwtDialScaleDraw *	scaleDraw ()
const QwtDialScaleDraw *	scaleDraw () 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)
virtual void	setScaleDraw (QwtDialScaleDraw *)
void	setScaleOptions (int)
void	setScaleTicks (int minLen, int medLen, int majLen, int penWidth=1)
virtual void	setWrapping (bool)
void	showBackground (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 QPoint &center, int radius, double north, QPalette::ColorGroup) const
virtual void	drawScaleContents (QPainter *, const QPoint &center, int 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 QPoint &, int radius, double direction, QPalette::ColorGroup) const
virtual void	drawScale (QPainter *, const QPoint &center, int radius, double origin, double arcMin, double arcMax) const
virtual void	getScrollMode (const QPoint &, int &scrollMode, int &direction)
virtual double	getValue (const QPoint &)
virtual void	paintEvent (QPaintEvent *)
virtual void	rangeChange ()
virtual void	resizeEvent (QResizeEvent *)
virtual void	updateMask ()
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	ScaleOptions { ScaleBackbone = 1, ScaleTicks = 2, ScaleLabel = 4 }
enum	Shadow { Plain = QFrame::Plain, Raised = QFrame::Raised, Sunken = QFrame::Sunken }
Public Types inherited from QwtAbstractSlider
enum	ScrollMode { ScrNone, ScrMouse, ScrTimer, ScrDirect, ScrPage }

Detailed Description

A Compass Widget.

QwtCompass is a widget to display and enter directions. It consists of a scale, an optional needle and rose.

Note:: The examples/dials example shows how to use QwtCompass.

Constructor & Destructor Documentation

QwtCompass::QwtCompass ( QWidget * parent = NULL )

explicit

Constructor.

Parameters:

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.

Member Function Documentation

void QwtCompass::drawRose	(	QPainter *	painter,
		const QPoint &	center,
		int	radius,
		double	north,
		QPalette::ColorGroup	cg
	)		const

protectedvirtual

Draw the compass rose

Parameters:

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

void QwtCompass::drawScaleContents	(	QPainter *	painter,
		const QPoint &	center,
		int	radius
	)		const

protectedvirtual

Draw the contents of the scale

Parameters:

painter	Painter
center	Center of the content circle
radius	Radius of the content circle

Reimplemented from QwtDial.

void QwtCompass::keyPressEvent ( QKeyEvent * kev )

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.

See also:: isReadOnly()

Reimplemented from QwtDial.

const QMap< double, QString > & QwtCompass::labelMap ( ) const

Returns:: map, mapping values to labels

See also:: setLabelMap()

QMap< double, QString > & QwtCompass::labelMap ( )

Returns:: map, mapping values to labels

See also:: setLabelMap()

const QwtCompassRose * QwtCompass::rose ( ) const

Returns:: rose

See also:: setRose()

QwtCompassRose * QwtCompass::rose ( )

Returns:: rose

See also:: setRose()

QwtText QwtCompass::scaleLabel ( double value ) const

protectedvirtual

Map a value to a corresponding label

Parameters:

value Value that will be mapped

Returns:: Label, or QString::null

label() looks in a map for a corresponding label for value or return an null text.

See also:: labelMap(), setLabelMap()

Reimplemented from QwtDial.

void QwtCompass::setLabelMap ( const QMap< double, QString > & map )

Set a map, mapping values to labels.

Parameters:

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.

Warning:: The map will have no effect for values that are no major tick values. Major ticks can be changed by QwtScaleDraw::setScale

See also:: labelMap(), scaleDraw(), setScale()

void QwtCompass::setRose ( QwtCompassRose * rose )

Set a rose for the compass

Parameters:

rose	Compass rose

Warning:: The rose will be deleted, when a different rose is set or in ~QwtCompass

See also:: rose()

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation