GPSLocationItem Class Reference

Class for indicating current position and accuracy accuired from GPS on the map. More...

#include <gpslocationitem.h>

List of all members.

Public Member Functions
	GPSLocationItem ()
	Constructor.
QRectF	boundingRect () const
	Implements the bounding rect.
void	paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
	Implements the painter.
void	setEnabled (bool enable)
	Enable / disable item.
void	updateItem (QPointF scenePosition, qreal accuracy, qreal sceneResolution)
	Update position item.
Private Member Functions
void	setAccuracyRingRadius (qreal accuracy, qreal sceneResolution)
	Set new radius for the accuracy ring.
void	setBoundingRect (qreal radius)
	Sets new bounding rect for this item based on the accuracy ring radius.
Private Attributes
bool	m_showOnNextUpdate
	should the item be shown when next update arrives
qreal	m_radius
	accuracy ring radius in scene pixels
QGraphicsPixmapItem *	m_pixmapItem
	red led item
QRectF	m_boundingRect
	item's bounding rect

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Detailed Description

Class for indicating current position and accuracy accuired from GPS on the map.

Actual position spot image is a child item of this class and this class handles drawing the accuracy ring. GPS fix accuracy is indicated by the radius of the circle around the position item.

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Member Function Documentation

QRectF GPSLocationItem::boundingRect

(

)

const

Implements the bounding rect.

Returns:

Bounding rect of the item

void GPSLocationItem::setAccuracyRingRadius	(	qreal	accuracy,
		qreal	sceneResolution
	)			[private]

Set new radius for the accuracy ring.

Calls setBoundingRect() if the radius changes

Parameters:

	accuracy	Accuracy (in meters)
	sceneResolution	Scene resolution (meters/pixel)

void GPSLocationItem::setBoundingRect

(

qreal

radius

)

[private]

Sets new bounding rect for this item based on the accuracy ring radius.

Parameters:

radius

Radius of the accuracy ring

void GPSLocationItem::setEnabled

(

bool

enable

)

Enable / disable item.

Actual enabling is done when next position update is received, so the old value before hiding the item is not used.

Parameters:

enable

True if item should be enabled, otherwise false

void GPSLocationItem::updateItem	(	QPointF	scenePosition,
		qreal	accuracy,
		qreal	sceneResolution
	)

Update position item.

Parameters:

	scenePosition	Scene position
	accuracy	Accuracy of the GPS fix
	sceneResolution	Scene horizontal resolution at given coordinate latitude level

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

• src/map/gpslocationitem.h
• src/map/gpslocationitem.cpp