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0001 /*  This file is part of the KDE project.
0002     SPDX-FileCopyrightText: 2010 Michael Pyne <mpyne@kde.org>
0003 
0004     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
0005 */
0006 
0007 #ifndef KLOCALIMAGECACHEIMPL_H
0008 #define KLOCALIMAGECACHEIMPL_H
0009 
0010 #include <kguiaddons_export.h>
0011 
0012 #include <memory>
0013 
0014 class KLocalImageCacheImplementationPrivate;
0015 
0016 class QImage;
0017 class QPixmap;
0018 class QByteArray;
0019 class QDateTime;
0020 class QString;
0021 
0022 /**
0023  * You are not supposed to use this class directly, use KImageCache instead
0024  *
0025  * @internal
0026  */
0027 class KGUIADDONS_EXPORT KLocalImageCacheImplementation
0028 {
0029 private:
0030     explicit KLocalImageCacheImplementation(unsigned defaultCacheSize);
0031 
0032 public:
0033     virtual ~KLocalImageCacheImplementation();
0034 
0035     QDateTime lastModifiedTime() const;
0036 
0037     bool pixmapCaching() const;
0038     void setPixmapCaching(bool enable);
0039 
0040     int pixmapCacheLimit() const;
0041     void setPixmapCacheLimit(int size);
0042 
0043 protected:
0044     void updateModifiedTime();
0045     QByteArray serializeImage(const QImage &image) const;
0046 
0047     bool insertLocalPixmap(const QString &key, const QPixmap &pixmap) const;
0048     bool findLocalPixmap(const QString &key, QPixmap *destination) const;
0049     void clearLocalCache();
0050 
0051 private:
0052     std::unique_ptr<KLocalImageCacheImplementationPrivate> const d; ///< @internal
0053 
0054     template<class T>
0055     friend class KSharedPixmapCacheMixin;
0056 };
0057 
0058 #endif /* KLOCALIMAGECACHEIMPL_H */