A special scale draw made for QwtCompass. More...

#include <qwt_compass.h>

Inheritance diagram for QwtCompassScaleDraw:

Classes
class	PrivateData

Public Member Functions
virtual QwtText	label (double value) const QWT_OVERRIDE

QMap< double, QString >	labelMap () const

	QwtCompassScaleDraw ()
	Constructor. More...

	QwtCompassScaleDraw (const QMap< double, QString > &map)
	Constructor. More...

void	setLabelMap (const QMap< double, QString > &map)
	Set a map, mapping values to labels. More...

virtual	~QwtCompassScaleDraw ()
	Destructor. More...

Public Member Functions inherited from QwtRoundScaleDraw
QPointF	center () const
	Get the center of the scale. More...

virtual double	extent (const QFont &) const QWT_OVERRIDE

void	moveCenter (double x, double y)
	Move the center of the scale draw, leaving the radius unchanged. More...

void	moveCenter (const QPointF &)

	QwtRoundScaleDraw ()
	Constructor. More...

double	radius () const

void	setAngleRange (double angle1, double angle2)
	Adjust the baseline circle segment for round scales. More...

void	setRadius (double radius)

virtual	~QwtRoundScaleDraw ()
	Destructor. More...

Public Member Functions inherited from QwtAbstractScaleDraw
virtual void	draw (QPainter *, const QPalette &) const
	Draw the scale. More...

void	enableComponent (ScaleComponent, bool enable=true)

bool	hasComponent (ScaleComponent) const

void	invalidateCache ()

double	maxTickLength () const

double	minimumExtent () const

qreal	penWidthF () const

	QwtAbstractScaleDraw ()
	Constructor. More...

const QwtScaleDiv &	scaleDiv () const

const QwtScaleMap &	scaleMap () const

QwtScaleMap &	scaleMap ()

void	setMinimumExtent (double)
	Set a minimum for the extent. More...

void	setPenWidthF (qreal width)
	Specify the width of the scale pen. More...

void	setScaleDiv (const QwtScaleDiv &)

void	setSpacing (double)
	Set the spacing between tick and labels. More...

void	setTickLength (QwtScaleDiv::TickType, double length)

void	setTransformation (QwtTransform *)

double	spacing () const
	Get the spacing. More...

double	tickLength (QwtScaleDiv::TickType) const

virtual	~QwtAbstractScaleDraw ()
	Destructor. More...

Private Attributes
PrivateData *	d_data

Additional Inherited Members
Public Types inherited from QwtAbstractScaleDraw
enum	ScaleComponent { Backbone = 0x01, Ticks = 0x02, Labels = 0x04 }

typedef QFlags< ScaleComponent >	ScaleComponents
	Scale components. More...

Protected Member Functions inherited from QwtRoundScaleDraw
virtual void	drawBackbone (QPainter *) const QWT_OVERRIDE

virtual void	drawLabel (QPainter *, double value) const QWT_OVERRIDE

virtual void	drawTick (QPainter *, double value, double len) const QWT_OVERRIDE

Protected Member Functions inherited from QwtAbstractScaleDraw
const QwtText &	tickLabel (const QFont &, double value) const
	Convert a value into its representing label and cache it. More...

Detailed Description

A special scale draw made for QwtCompass.

QwtCompassScaleDraw maps values to strings using a special map, that can be modified by the application

The default map consists of the labels N, NE, E, SE, S, SW, W, NW.

See also: QwtCompass

Definition at line 32 of file qwt_compass.h.

Constructor & Destructor Documentation

QwtCompassScaleDraw::QwtCompassScaleDraw ( )

explicit

Constructor.

Initializes a label map for multiples of 45 degrees

Definition at line 28 of file qwt_compass.cpp.

QwtCompassScaleDraw::QwtCompassScaleDraw ( const QMap< double, QString > & map )

explicit

Constructor.

Parameters

map	Value to label map

Definition at line 63 of file qwt_compass.cpp.

QwtCompassScaleDraw::~QwtCompassScaleDraw ( )

virtual

Destructor.

Definition at line 73 of file qwt_compass.cpp.

Member Function Documentation

QwtText QwtCompassScaleDraw::label ( double value ) const

virtual

Map a value to a corresponding label

Parameters

value Value that will be mapped

label() looks in the labelMap() for a corresponding label for value or returns an null text.

Returns: Label

See also: labelMap(), setLabelMap()

Reimplemented from QwtAbstractScaleDraw.

Definition at line 116 of file qwt_compass.cpp.

QMap< double, QString > QwtCompassScaleDraw::labelMap ( ) const

Returns: map, mapping values to labels

See also: setLabelMap()

Definition at line 99 of file qwt_compass.cpp.

void QwtCompassScaleDraw::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()

Definition at line 90 of file qwt_compass.cpp.

Member Data Documentation

PrivateData* QwtCompassScaleDraw::d_data

private

Definition at line 46 of file qwt_compass.h.

The documentation for this class was generated from the following files:

Classes

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation