58 lines
1.2 KiB
C++
58 lines
1.2 KiB
C++
/*
|
|
* 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 <unordered_map>
|
|
|
|
#include <QString>
|
|
#include <QObject>
|
|
#include <QPixmap>
|
|
|
|
#include <Utils.h> // std::hash<QString>
|
|
|
|
class QNetworkAccessManager;
|
|
class QNetworkReply;
|
|
class QUrl;
|
|
|
|
class FaviconCache : public QObject
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
FaviconCache();
|
|
virtual ~FaviconCache();
|
|
|
|
// returns a cached pixmap, or a NULL pixmap if there's no match in the cache
|
|
QPixmap find(QString const& key);
|
|
QPixmap find(QUrl const& url) { return find(getKey(url)); }
|
|
|
|
// This will emit a signal when (if) the icon becomes ready.
|
|
// Returns the key.
|
|
QString add(QUrl const& url);
|
|
|
|
static QString getDisplayName(QString const& key);
|
|
static QString getKey(QUrl const& url);
|
|
static QString getKey(QString const& displayName);
|
|
static QSize getIconSize();
|
|
|
|
signals:
|
|
void pixmapReady(QString const& key);
|
|
|
|
private:
|
|
QString getCacheDir();
|
|
void ensureCacheDirHasBeenScanned();
|
|
|
|
private slots:
|
|
void onRequestFinished(QNetworkReply* reply);
|
|
|
|
private:
|
|
QNetworkAccessManager* myNAM;
|
|
std::unordered_map<QString, QPixmap> myPixmaps;
|
|
};
|