MultiLevelJsonBase Class Reference

Abstract base class for managing multi-level tree objects stored in JSON format. More...

#include <MultiLevelJsonBase.hpp>

List of all members.

Public Member Functions
	MultiLevelJsonBase (MultiLevelJsonBase *parent=NULL)
void	initFromUrl (const QString &url)
void	initFromQVariantMap (const QVariantMap &map)
	~MultiLevelJsonBase ()
QString	getShortName () const
bool	hasErrorOccured () const
int	getLevel () const
QVariantMap	toQVariantMap () const
void	scheduleChildsDeletion ()
Protected Member Functions
virtual void	loadFromQVariantMap (const QVariantMap &map)=0
bool	isDeletionScheduled () const
void	updatePercent (int tot, int numToBeLoaded)
void	deleteUnusedSubTiles ()
void	cancelDeletion ()
Static Protected Member Functions
static QVariantMap	loadFromJSON (QIODevice &input, bool qZcompressed=false, bool gzCompressed=false)
Protected Attributes
QString	shortName
QString	baseUrl
QString	contructorUrl
QList< MultiLevelJsonBase * >	subTiles
bool	errorOccured
bool	downloading

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Detailed Description

Abstract base class for managing multi-level tree objects stored in JSON format.

The JSON files can be stored on disk or remotely and are loaded into threads.

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Member Function Documentation

void MultiLevelJsonBase::initFromQVariantMap

(

const QVariantMap &

map

)

Init the element from a QVariantMap.

This method should be called by the constructors of the subclass.

void MultiLevelJsonBase::initFromUrl

(

const QString &

url

)

Init the element from a URL.

This method should be called by the constructors of the subclass.

virtual void MultiLevelJsonBase::loadFromQVariantMap

(

const QVariantMap &

map

)

[protected, pure virtual]

Load the element from a valid QVariantMap.

This method is called after the JSON files are downloaded and parsed into a QVariantMap.

Implemented in StelSkyImageTile, and StelSkyPolygon.

void MultiLevelJsonBase::scheduleChildsDeletion

(

)

Schedule a deletion for all the childs.

It will practically occur after the delay passed as argument to deleteUnusedTiles() has expired.

QVariantMap MultiLevelJsonBase::toQVariantMap

(

)

const

Convert the image informations to a map following the JSON structure.

It can be saved as JSON using the StelJsonParser methods.

Reimplemented in StelSkyImageTile, and StelSkyPolygon.