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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

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