/usr/include/KF5/messageviewer/iconnamecache.h is in libkf5messageviewer-dev 4:16.04.3-3~deb9u1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | /* Copyright 2009 Thomas McGuire <mcguire@kde.org>
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published
by the Free Software Foundation; either version 2 of the License or
( at your option ) version 3 or, at the discretion of KDE e.V.
( which shall act as a proxy as in section 14 of the GPLv3 ), any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef ICONNAMECACHE_H
#define ICONNAMECACHE_H
#include <QMap>
#include <QString>
#include "messageviewer_export.h"
namespace MessageViewer
{
/**
* This class is a replacement for KIconLoader::iconPath(), because the iconPath()
* function can be slow for non-existing icons or icons that fall back to a generic icon.
* Reason is that KIconLoader does slow system calls for finding the icons.
*
* The IconNameCache caches the result of iconPath() in a map and solves the slowness.
*/
class MESSAGEVIEWER_EXPORT IconNameCache
{
public:
static IconNameCache *instance();
QString iconPath(const QString &name, int size) const;
private:
class Entry
{
public:
QString fileName;
int size;
bool operator < (const Entry &other) const;
};
mutable QMap<Entry, QString> mCachedEntries;
};
}
#endif
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