Library::AlbumCoverFetchThread Class Reference

This class organizes requests for new Covers for the AlbumCoverView. When looking for covers, not all requests should be fired simultaneously, so there should be a buffer assuring that covers are found one by one. Albums are organized by hashes, each album has a CoverLocation. A new request is added to the queue by calling add_data(). A new request is handled BEFORE old requests. The thread is locked until the done() function is called. The thread emits the signal sig_next(). The cover location and the hash which should be processed next can be fetched by current_hash() and current_coverLocation(). More...

#include <AlbumCoverFetchThread.h>

Inheritance diagram for Library::AlbumCoverFetchThread:

Public Types
using	Hash = QString
using	HashAlbumPair = QPair<Hash, Album>
using	HashAlbumList = QList<HashAlbumPair>
using	HashLocationPair = QPair<Hash, Cover::Location>
using	HashLocationList = QList<HashLocationPair>

Signals
void	sigNext ()

Public Member Functions
	AlbumCoverFetchThread (QObject *parent=nullptr)
void	addAlbum (const Album &album)
	add_data Add a new album request
bool	checkAlbum (const QString &hashLocationPair)
	check if album is already processed or about to be processed in the future
HashLocationPair	takeCurrentLookup ()
void	stop ()
	stop Stop the thread
void	clear ()
void	removeHash (const Hash &hash)

Static Public Member Functions
static Hash	getHash (const Album &album)

Protected Member Functions
void	run () override

Detailed Description

This class organizes requests for new Covers for the AlbumCoverView. When looking for covers, not all requests should be fired simultaneously, so there should be a buffer assuring that covers are found one by one. Albums are organized by hashes, each album has a CoverLocation. A new request is added to the queue by calling add_data(). A new request is handled BEFORE old requests. The thread is locked until the done() function is called. The thread emits the signal sig_next(). The cover location and the hash which should be processed next can be fetched by current_hash() and current_coverLocation().

Member Function Documentation

addAlbum()

void Library::AlbumCoverFetchThread::addAlbum

(

const Album &

album

)

add_data Add a new album request

Parameters

hash	hashed album info
cl	Cover Location of the album

checkAlbum()

bool Library::AlbumCoverFetchThread::checkAlbum

(

const QString &

hashLocationPair

)

check if album is already processed or about to be processed in the future

Parameters

hashLocationPair

Returns