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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QPIXMAPCACHE_H
#define QPIXMAPCACHE_H
#include <QtGui/qtguiglobal.h>
#include <QtGui/qpixmap.h>
QT_BEGIN_NAMESPACE
class Q_GUI_EXPORT QPixmapCache
{
public:
class KeyData;
class Q_GUI_EXPORT Key
{
public:
Key();
Key(const Key &other);
Key(Key &&other) noexcept : d(other.d) { other.d = nullptr; }
Key &operator =(Key &&other) noexcept { swap(other); return *this; }
~Key();
bool operator ==(const Key &key) const;
inline bool operator !=(const Key &key) const
{ return !operator==(key); }
Key &operator =(const Key &other);
void swap(Key &other) noexcept { qt_ptr_swap(d, other.d); }
bool isValid() const noexcept;
private:
friend size_t qHash(const QPixmapCache::Key &k, size_t seed = 0) noexcept
{ return k.hash(seed); }
size_t hash(size_t seed) const noexcept;
KeyData *d;
friend class QPMCache;
friend class QPixmapCache;
};
static int cacheLimit();
static void setCacheLimit(int);
static bool find(const QString &key, QPixmap *pixmap);
static bool find(const Key &key, QPixmap *pixmap);
static bool insert(const QString &key, const QPixmap &pixmap);
static Key insert(const QPixmap &pixmap);
#if QT_DEPRECATED_SINCE(6, 6)
QT_DEPRECATED_VERSION_X_6_6("Use remove(key), followed by key = insert(pixmap).")
QT_GUI_INLINE_SINCE(6, 6)
static bool replace(const Key &key, const QPixmap &pixmap);
#endif
static void remove(const QString &key);
static void remove(const Key &key);
static void clear();
};
Q_DECLARE_SHARED(QPixmapCache::Key)
#if QT_DEPRECATED_SINCE(6, 6)
#if QT_GUI_INLINE_IMPL_SINCE(6, 6)
bool QPixmapCache::replace(const Key &key, const QPixmap &pixmap)
{
if (!key.isValid())
return false;
remove(key);
const_cast<Key&>(key) = insert(pixmap);
return key.isValid();
}
#endif // QT_GUI_INLINE_IMPL_SINCE(6, 6)
#endif // QT_DEPRECATED_SINCE(6, 6)
QT_END_NAMESPACE
#endif // QPIXMAPCACHE_H
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