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39
40#ifndef QPIXMAPCACHE_H
41#define QPIXMAPCACHE_H
42
43#include <QtGui/qtguiglobal.h>
44#include <QtGui/qpixmap.h>
45
46QT_BEGIN_NAMESPACE
47
48
49class Q_GUI_EXPORT QPixmapCache
50{
51public:
52 class KeyData;
53 class Q_GUI_EXPORT Key
54 {
55 public:
56 Key();
57 Key(const Key &other);
58#ifdef Q_COMPILER_RVALUE_REFS
59 Key(Key &&other) Q_DECL_NOTHROW : d(other.d) { other.d = nullptr; }
60 Key &operator =(Key &&other) Q_DECL_NOTHROW { swap(other); return *this; }
61#endif
62 ~Key();
63 bool operator ==(const Key &key) const;
64 inline bool operator !=(const Key &key) const
65 { return !operator==(key); }
66 Key &operator =(const Key &other);
67
68 void swap(Key &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
69 bool isValid() const Q_DECL_NOTHROW;
70
71 private:
72 KeyData *d;
73 friend class QPMCache;
74 friend class QPixmapCache;
75 };
76
77 static int cacheLimit();
78 static void setCacheLimit(int);
79 static QPixmap *find(const QString &key);
80 static bool find(const QString &key, QPixmap &pixmap);
81 static bool find(const QString &key, QPixmap *pixmap);
82 static bool find(const Key &key, QPixmap *pixmap);
83 static bool insert(const QString &key, const QPixmap &pixmap);
84 static Key insert(const QPixmap &pixmap);
85 static bool replace(const Key &key, const QPixmap &pixmap);
86 static void remove(const QString &key);
87 static void remove(const Key &key);
88 static void clear();
89
90#ifdef Q_TEST_QPIXMAPCACHE
91 static void flushDetachedPixmaps();
92 static int totalUsed();
93#endif
94};
95Q_DECLARE_SHARED_NOT_MOVABLE_UNTIL_QT6(QPixmapCache::Key)
96
97QT_END_NAMESPACE
98
99#endif // QPIXMAPCACHE_H
100