diff options
Diffstat (limited to 'src/gui/image/qimagepixmapcleanuphooks.cpp')
| -rw-r--r-- | src/gui/image/qimagepixmapcleanuphooks.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/gui/image/qimagepixmapcleanuphooks.cpp b/src/gui/image/qimagepixmapcleanuphooks.cpp new file mode 100644 index 0000000000..cd7b4682b7 --- /dev/null +++ b/src/gui/image/qimagepixmapcleanuphooks.cpp @@ -0,0 +1,163 @@ +/**************************************************************************** +** +** 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qimagepixmapcleanuphooks_p.h" +#include "private/qpixmapdata_p.h" +#include "private/qimage_p.h" + + +QT_BEGIN_NAMESPACE + +// Legacy, single instance hooks: ### Qt 5: remove +typedef void (*_qt_pixmap_cleanup_hook)(int); +typedef void (*_qt_pixmap_cleanup_hook_64)(qint64); +typedef void (*_qt_image_cleanup_hook)(int); +Q_GUI_EXPORT _qt_pixmap_cleanup_hook qt_pixmap_cleanup_hook = 0; +Q_GUI_EXPORT _qt_pixmap_cleanup_hook_64 qt_pixmap_cleanup_hook_64 = 0; +Q_GUI_EXPORT _qt_image_cleanup_hook qt_image_cleanup_hook = 0; +Q_GUI_EXPORT _qt_image_cleanup_hook_64 qt_image_cleanup_hook_64 = 0; + +Q_GLOBAL_STATIC(QImagePixmapCleanupHooks, qt_image_and_pixmap_cleanup_hooks) + +QImagePixmapCleanupHooks *QImagePixmapCleanupHooks::instance() +{ + return qt_image_and_pixmap_cleanup_hooks(); +} + +void QImagePixmapCleanupHooks::addPixmapDataModificationHook(_qt_pixmap_cleanup_hook_pmd hook) +{ + pixmapModificationHooks.append(hook); +} + +void QImagePixmapCleanupHooks::addPixmapDataDestructionHook(_qt_pixmap_cleanup_hook_pmd hook) +{ + pixmapDestructionHooks.append(hook); +} + + +void QImagePixmapCleanupHooks::addImageHook(_qt_image_cleanup_hook_64 hook) +{ + imageHooks.append(hook); +} + +void QImagePixmapCleanupHooks::removePixmapDataModificationHook(_qt_pixmap_cleanup_hook_pmd hook) +{ + pixmapModificationHooks.removeAll(hook); +} + +void QImagePixmapCleanupHooks::removePixmapDataDestructionHook(_qt_pixmap_cleanup_hook_pmd hook) +{ + pixmapDestructionHooks.removeAll(hook); +} + +void QImagePixmapCleanupHooks::removeImageHook(_qt_image_cleanup_hook_64 hook) +{ + imageHooks.removeAll(hook); +} + +void QImagePixmapCleanupHooks::executePixmapDataModificationHooks(QPixmapData* pmd) +{ + QImagePixmapCleanupHooks *h = qt_image_and_pixmap_cleanup_hooks(); + // the global destructor for the pixmap and image hooks might have + // been called already if the app is "leaking" global + // pixmaps/images + if (!h) + return; + for (int i = 0; i < h->pixmapModificationHooks.count(); ++i) + h->pixmapModificationHooks[i](pmd); + + if (qt_pixmap_cleanup_hook_64) + qt_pixmap_cleanup_hook_64(pmd->cacheKey()); +} + +void QImagePixmapCleanupHooks::executePixmapDataDestructionHooks(QPixmapData* pmd) +{ + QImagePixmapCleanupHooks *h = qt_image_and_pixmap_cleanup_hooks(); + // the global destructor for the pixmap and image hooks might have + // been called already if the app is "leaking" global + // pixmaps/images + if (!h) + return; + for (int i = 0; i < h->pixmapDestructionHooks.count(); ++i) + h->pixmapDestructionHooks[i](pmd); + + if (qt_pixmap_cleanup_hook_64) + qt_pixmap_cleanup_hook_64(pmd->cacheKey()); +} + +void QImagePixmapCleanupHooks::executeImageHooks(qint64 key) +{ + for (int i = 0; i < qt_image_and_pixmap_cleanup_hooks()->imageHooks.count(); ++i) + qt_image_and_pixmap_cleanup_hooks()->imageHooks[i](key); + + if (qt_image_cleanup_hook_64) + qt_image_cleanup_hook_64(key); +} + + +void QImagePixmapCleanupHooks::enableCleanupHooks(QPixmapData *pixmapData) +{ + pixmapData->is_cached = true; +} + +void QImagePixmapCleanupHooks::enableCleanupHooks(const QPixmap &pixmap) +{ + enableCleanupHooks(const_cast<QPixmap &>(pixmap).data_ptr().data()); +} + +void QImagePixmapCleanupHooks::enableCleanupHooks(const QImage &image) +{ + const_cast<QImage &>(image).data_ptr()->is_cached = true; +} + +bool QImagePixmapCleanupHooks::isImageCached(const QImage &image) +{ + return const_cast<QImage &>(image).data_ptr()->is_cached; +} + +bool QImagePixmapCleanupHooks::isPixmapCached(const QPixmap &pixmap) +{ + return const_cast<QPixmap&>(pixmap).data_ptr().data()->is_cached; +} + + + +QT_END_NAMESPACE |