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.
*
*/
#pragma once
#include <QMap>
#include <QString>
#include <QObject>
#include <QPixmap>
class QNetworkAccessManager;
class QNetworkReply;
class QUrl;
class FaviconCache : public QObject
{
Q_OBJECT
public:
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(QUrl const& url);
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// returns a cached pixmap, or a NULL pixmap if there's no match in the cache
QPixmap findFromHost(QString const& host);
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// this will emit a signal when (if) the icon becomes ready
void add(QUrl const& url);
static QString getHost(QUrl const& url);
static QSize getIconSize();
signals:
void pixmapReady(QString const& host);
private:
QString getCacheDir();
void ensureCacheDirHasBeenScanned();
private slots:
void onRequestFinished(QNetworkReply* reply);
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private:
QNetworkAccessManager* myNAM;
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QMap<QString, QPixmap> myPixmaps;
};