Handles asynchronous download of images. More...

Inheritance diagram for QgsImageFetcher:

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

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

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

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

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

Detailed Description

Handles asynchronous download of images.

Definition at line 57 of file qgsrasterdataprovider.h.

Constructor & Destructor Documentation

QgsImageFetcher::QgsImageFetcher ( QObject * parent = nullptr )

inline

Constructor.

Definition at line 62 of file qgsrasterdataprovider.h.

void QgsImageFetcher::error ( const QString & msg )

signal

Emitted when an error occurs.

void QgsImageFetcher::finish ( const QImage & legend )

signal

Emitted when the download completes.

Parameters

legend The downloaded legend image

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

signal

Emitted to report progress.

virtual void QgsImageFetcher::start ( )

pure virtual

Starts the image download.

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