transmission/qt/FaviconCache.h

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/*
* This file Copyright (C) 2012-2015 Mnemosyne LLC
*
* It may be used under the GNU GPL versions 2 or 3
* or any future license endorsed by Mnemosyne LLC.
*
* $Id$
*/
#ifndef QTR_FAVICON_CACHE_H
#define QTR_FAVICON_CACHE_H
#include <QMap>
#include <QString>
#include <QObject>
#include <QPixmap>
class QNetworkAccessManager;
class QNetworkReply;
class QUrl;
class FaviconCache: public QObject
{
Q_OBJECT
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public:
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FaviconCache ();
virtual ~FaviconCache ();
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// returns a cached pixmap, or a NULL pixmap if there's no match in the cache
QPixmap find (const QUrl& url);
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// returns a cached pixmap, or a NULL pixmap if there's no match in the cache
QPixmap findFromHost (const QString& host);
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// this will emit a signal when (if) the icon becomes ready
void add (const QUrl& url);
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static QString getHost (const QUrl& url);
static QSize getIconSize ();
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signals:
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void pixmapReady (const QString& host);
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private:
QString getCacheDir ();
void ensureCacheDirHasBeenScanned ();
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private slots:
void onRequestFinished (QNetworkReply * reply);
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private:
QNetworkAccessManager * myNAM;
QMap<QString, QPixmap> myPixmaps;
};
#endif // QTR_FAVICON_CACHE_H