Handles asynchronous download of images. More...

#include <qgsrasterdataprovider.h>

Inheritance diagram for QgsImageFetcher:

Signals
void	error (const QString &msg)
	Emitted when an error occurs. More...

void	finish (const QImage &legend)
	Emitted when the download completes. More...

void	progress (qint64 received, qint64 total)
	Emitted to report progress. More...

Public Member Functions
	QgsImageFetcher (QObject *parent=0)
	Constructor. More...

virtual	~QgsImageFetcher ()
	Destructor. More...

virtual void	start ()=0
	Starts the image download. More...

Public Member Functions inherited from QObject
	QObject (QObject *parent)

	QObject (QObject parent, const char name)

virtual	~QObject ()

bool	blockSignals (bool block)

QObject *	child (const char objName, const char inheritsClass, bool recursiveSearch) const

const QObjectList &	children () const

const char *	className () const

bool	connect (const QObject sender, const char signal, const char *method, Qt::ConnectionType type) const

void	deleteLater ()

void	destroyed (QObject *obj)

bool	disconnect (const QObject receiver, const char method)

bool	disconnect (const char signal, const QObject receiver, const char *method)

void	dumpObjectInfo ()

void	dumpObjectTree ()

QList< QByteArray >	dynamicPropertyNames () const

virtual bool	event (QEvent *e)

virtual bool	eventFilter (QObject watched, QEvent event)

T	findChild (const QString &name) const

QList< T >	findChildren (const QRegExp &regExp) const

QList< T >	findChildren (const QString &name) const

bool	inherits (const char *className) const

void	insertChild (QObject *object)

void	installEventFilter (QObject *filterObj)

bool	isA (const char *className) const

bool	isWidgetType () const

void	killTimer (int id)

virtual const QMetaObject *	metaObject () const

void	moveToThread (QThread *targetThread)

const char *	name () const

const char *	name (const char *defaultName) const

QString	objectName () const

QObject *	parent () const

QVariant	property (const char *name) const

void	removeChild (QObject *object)

void	removeEventFilter (QObject *obj)

void	setName (const char *name)

void	setObjectName (const QString &name)

void	setParent (QObject *parent)

bool	setProperty (const char *name, const QVariant &value)

bool	signalsBlocked () const

int	startTimer (int interval)

QThread *	thread () const

Additional Inherited Members
Static Public Member Functions inherited from QObject
bool	connect (const QObject sender, const char signal, const QObject receiver, const char method, Qt::ConnectionType type)

bool	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type)

bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char method)

bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method)

QString	tr (const char sourceText, const char disambiguation, int n)

QString	trUtf8 (const char sourceText, const char disambiguation, int n)

Protected Member Functions inherited from QObject
bool	checkConnectArgs (const char signal, const QObject object, const char *method)

virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const char *signal)

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const char *signal)

int	receivers (const char *signal) const

QObject *	sender () const

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *event)

Static Protected Member Functions inherited from QObject
QByteArray	normalizeSignalSlot (const char *signalSlot)

Properties inherited from QObject
	objectName

Detailed Description

Handles asynchronous download of images.

Note: added in 2.8

Definition at line 59 of file qgsrasterdataprovider.h.

Constructor & Destructor Documentation

◆ QgsImageFetcher()

QgsImageFetcher::QgsImageFetcher ( QObject * parent = 0 )

inline

Constructor.

Definition at line 64 of file qgsrasterdataprovider.h.

◆ ~QgsImageFetcher()

virtual QgsImageFetcher::~QgsImageFetcher ( )

inlinevirtual

Destructor.

Definition at line 66 of file qgsrasterdataprovider.h.

Member Function Documentation

◆ error

void QgsImageFetcher::error ( const QString & msg )

signal

Emitted when an error occurs.

◆ finish

void QgsImageFetcher::finish ( const QImage & legend )

signal

Emitted when the download completes.

Parameters

legend The downloaded legend image

◆ progress

void QgsImageFetcher::progress	(	qint64	received,
		qint64	total
	)

signal

Emitted to report progress.

◆ start()

virtual void QgsImageFetcher::start ( )

pure virtual

Starts the image download.

Note: Make sure to connect to "finish" and "error" before starting

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

/tmp/buildd/qgis-2.18.21+99unstable/src/core/raster/qgsrasterdataprovider.h

Signals

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QgsImageFetcher()

◆ ~QgsImageFetcher()

Member Function Documentation

◆ error

◆ finish

◆ progress

◆ start()