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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QIMAGEPIXMAP_CLEANUPHOOKS_P_H
#define QIMAGEPIXMAP_CLEANUPHOOKS_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtGui/qpixmap.h>
QT_BEGIN_NAMESPACE
typedef void (*_qt_image_cleanup_hook_64)(qint64);
typedef void (*_qt_pixmap_cleanup_hook_pmd)(QPlatformPixmap*);
class QImagePixmapCleanupHooks;
class Q_GUI_EXPORT QImagePixmapCleanupHooks
{
public:
static QImagePixmapCleanupHooks *instance();
static void enableCleanupHooks(const QImage &image);
static void enableCleanupHooks(const QPixmap &pixmap);
static void enableCleanupHooks(QPlatformPixmap *handle);
static bool isImageCached(const QImage &image);
static bool isPixmapCached(const QPixmap &pixmap);
// Gets called when a pixmap data is about to be modified:
void addPlatformPixmapModificationHook(_qt_pixmap_cleanup_hook_pmd);
// Gets called when a pixmap data is about to be destroyed:
void addPlatformPixmapDestructionHook(_qt_pixmap_cleanup_hook_pmd);
// Gets called when an image is about to be modified or destroyed:
void addImageHook(_qt_image_cleanup_hook_64);
void removePlatformPixmapModificationHook(_qt_pixmap_cleanup_hook_pmd);
void removePlatformPixmapDestructionHook(_qt_pixmap_cleanup_hook_pmd);
void removeImageHook(_qt_image_cleanup_hook_64);
static void executePlatformPixmapModificationHooks(QPlatformPixmap*);
static void executePlatformPixmapDestructionHooks(QPlatformPixmap*);
static void executeImageHooks(qint64 key);
private:
QList<_qt_image_cleanup_hook_64> imageHooks;
QList<_qt_pixmap_cleanup_hook_pmd> pixmapModificationHooks;
QList<_qt_pixmap_cleanup_hook_pmd> pixmapDestructionHooks;
};
QT_END_NAMESPACE
#endif // QIMAGEPIXMAP_CLEANUPHOOKS_P_H
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