- Main Page
- Related Pages
- Modules
- Namespaces
- Classes
- Files
- Directories
- Examples

- File List
- File Members

# qpixmapcache.h

Go to the documentation of this file.

    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtGui module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QPIXMAPCACHE_H
    00043 #define QPIXMAPCACHE_H
    00044
    00045 #include <QtGui/qpixmap.h>
    00046
    00047 #ifdef Q_TEST_QPIXMAPCACHE
    00048 #include <QtCore/qpair.h>
    00049 #endif
    00050
    00051 QT_BEGIN_HEADER
    00052
    00053 QT_BEGIN_NAMESPACE
    00054
    00055 QT_MODULE(Gui)
    00056
    00057 class Q_GUI_EXPORT QPixmapCache
    00058 {
    00059 public:
    00060     class KeyData;
    00061     class Q_GUI_EXPORT Key
    00062     {
    00063     public:
    00064         Key();
    00065         Key(const Key &other);
    00066         ~Key();
    00067         bool operator ==(const Key &key) const;
    00068         inline bool operator !=(const Key &key) const
    00069         { return !operator==(key); }
    00070         Key &operator =(const Key &other);
    00071
    00072     private:
    00073         KeyData *d;
    00074         friend class QPMCache;
    00075         friend class QPixmapCache;
    00076     };
    00077
    00078     static int cacheLimit();
    00079     static void setCacheLimit(int);
    00080     static QPixmap *find(const QString &key);
    00081     static bool find(const QString &key, QPixmap &pixmap);
    00082     static bool find(const QString &key, QPixmap *pixmap);
    00083     static bool find(const Key &key, QPixmap *pixmap);
    00084     static bool insert(const QString &key, const QPixmap &pixmap);
    00085     static Key insert(const QPixmap &pixmap);
    00086     static bool replace(const Key &key, const QPixmap &pixmap);
    00087     static void remove(const QString &key);
    00088     static void remove(const Key &key);
    00089     static void clear();
    00090
    00091 #ifdef Q_TEST_QPIXMAPCACHE
    00092     static void flushDetachedPixmaps();
    00093     static int totalUsed();
    00094     static QList< QPair<QString,QPixmap> > allPixmaps();
    00095 #endif
    00096 };
    00097
    00098 QT_END_NAMESPACE
    00099
    00100 QT_END_HEADER
    00101
    00102 #endif // QPIXMAPCACHE_H