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Diffstat (limited to 'src/gui/image/qimagepixmapcleanuphooks_p.h')
-rw-r--r-- | src/gui/image/qimagepixmapcleanuphooks_p.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/gui/image/qimagepixmapcleanuphooks_p.h b/src/gui/image/qimagepixmapcleanuphooks_p.h new file mode 100644 index 0000000000..aa6a986f08 --- /dev/null +++ b/src/gui/image/qimagepixmapcleanuphooks_p.h @@ -0,0 +1,103 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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)(QPixmapData*); + + +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(QPixmapData *pixmapData); + + static bool isImageCached(const QImage &image); + static bool isPixmapCached(const QPixmap &pixmap); + + // Gets called when a pixmap data is about to be modified: + void addPixmapDataModificationHook(_qt_pixmap_cleanup_hook_pmd); + + // Gets called when a pixmap data is about to be destroyed: + void addPixmapDataDestructionHook(_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 removePixmapDataModificationHook(_qt_pixmap_cleanup_hook_pmd); + void removePixmapDataDestructionHook(_qt_pixmap_cleanup_hook_pmd); + void removeImageHook(_qt_image_cleanup_hook_64); + + static void executePixmapDataModificationHooks(QPixmapData*); + static void executePixmapDataDestructionHooks(QPixmapData*); + 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 |