Qt 4.8
qpixmapcache.h
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41 
42 #ifndef QPIXMAPCACHE_H
43 #define QPIXMAPCACHE_H
44 
45 #include <QtGui/qpixmap.h>
46 
47 #ifdef Q_TEST_QPIXMAPCACHE
48 #include <QtCore/qpair.h>
49 #endif
50 
52 
54 
55 QT_MODULE(Gui)
56 
58 {
59 public:
60  class KeyData;
62  {
63  public:
64  Key();
65  Key(const Key &other);
66  ~Key();
67  bool operator ==(const Key &key) const;
68  inline bool operator !=(const Key &key) const
69  { return !operator==(key); }
70  Key &operator =(const Key &other);
71 
72  private:
74  friend class QPMCache;
75  friend class QPixmapCache;
76  };
77 
78  static int cacheLimit();
79  static void setCacheLimit(int);
80  static QPixmap *find(const QString &key);
81  static bool find(const QString &key, QPixmap &pixmap);
82  static bool find(const QString &key, QPixmap *pixmap);
83  static bool find(const Key &key, QPixmap *pixmap);
84  static bool insert(const QString &key, const QPixmap &pixmap);
85  static Key insert(const QPixmap &pixmap);
86  static bool replace(const Key &key, const QPixmap &pixmap);
87  static void remove(const QString &key);
88  static void remove(const Key &key);
89  static void clear();
90 
91 #ifdef Q_TEST_QPIXMAPCACHE
92  static void flushDetachedPixmaps();
93  static int totalUsed();
94  static QList< QPair<QString,QPixmap> > allPixmaps();
95 #endif
96 };
97 
99 
101 
102 #endif // QPIXMAPCACHE_H
static int cacheLimit()
Returns the cache limit (in kilobytes).
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define QT_MODULE(x)
Definition: qglobal.h:2783
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
#define Q_GUI_EXPORT
Definition: qglobal.h:1450
static void clear(QVariant::Private *d)
Definition: qvariant.cpp:197
bool operator!=(QBool b1, bool b2)
Definition: qglobal.h:2026
The QString class provides a Unicode character string.
Definition: qstring.h:83
static QPixmap * find(const QString &key)
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The QPixmapCache::Key class can be used for efficient access to the QPixmapCache. ...
Definition: qpixmapcache.h:61
static bool replace(const Key &key, const QPixmap &pixmap)
Replaces the pixmap associated with the given key with the pixmap specified.
static bool insert(const QString &key, const QPixmap &pixmap)
Inserts a copy of the pixmap pixmap associated with the key into the cache.
int key
static void setCacheLimit(int)
Sets the cache limit to n kilobytes.
The QPixmap class is an off-screen image representation that can be used as a paint device...
Definition: qpixmap.h:71
#define class
#define QT_END_HEADER
Definition: qglobal.h:137
bool operator==(QBool b1, bool b2)
Definition: qglobal.h:2023
The QPixmapCache class provides an application-wide cache for pixmaps.
Definition: qpixmapcache.h:57
The QList class is a template class that provides lists.
Definition: qdatastream.h:62