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57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
/* Copyright 2009 Thomas McGuire <mcguire@kde.org>
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This library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Library General Public License as published
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by the Free Software Foundation; either version 2 of the License or
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( at your option ) version 3 or, at the discretion of KDE e.V.
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( which shall act as a proxy as in section 14 of the GPLv3 ), any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef ICONNAMECACHE_H
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#define ICONNAMECACHE_H
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#include "messageviewer_export.h"
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#include <QMap>
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#include <QString>
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namespace MessageViewer {
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/**
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* This class is a replacement for KIconLoader::iconPath(), because the iconPath()
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* function can be slow for non-existing icons or icons that fall back to a generic icon.
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* Reason is that KIconLoader does slow system calls for finding the icons.
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*
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* The IconNameCache caches the result of iconPath() in a map and solves the slowness.
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*/
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class MESSAGEVIEWER_EXPORT IconNameCache
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{
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public:
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static IconNameCache *instance();
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QString iconPath( const QString &name, int size ) const;
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private:
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class Entry
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{
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public:
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QString fileName;
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int size;
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bool operator < ( const Entry &other ) const;
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};
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mutable QMap<Entry,QString> mCachedEntries;
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};
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}
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#endif
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