diff -r 000000000000 -r 1918ee327afb src/gui/effects/qgraphicseffect_p.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/effects/qgraphicseffect_p.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,213 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 QGRAPHICSEFFECT_P_H
+#define QGRAPHICSEFFECT_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp.  This header
+// file may change from version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qgraphicseffect.h"
+
+#include <QPixmapCache>
+
+#include <private/qobject_p.h>
+#include <private/qpixmapfilter_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QGraphicsEffectSourcePrivate : public QObjectPrivate
+{
+    Q_DECLARE_PUBLIC(QGraphicsEffectSource)
+public:
+    QGraphicsEffectSourcePrivate() : QObjectPrivate() {}
+    virtual ~QGraphicsEffectSourcePrivate() { invalidateCache(); }
+    virtual void detach() = 0;
+    virtual QRectF boundingRect(Qt::CoordinateSystem system) const = 0;
+    virtual QRect deviceRect() const = 0;
+    virtual const QGraphicsItem *graphicsItem() const = 0;
+    virtual const QWidget *widget() const = 0;
+    virtual const QStyleOption *styleOption() const = 0;
+    virtual void draw(QPainter *p) = 0;
+    virtual void update() = 0;
+    virtual bool isPixmap() const = 0;
+    virtual QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset = 0) const = 0;
+    virtual void effectBoundingRectChanged() = 0;
+    void invalidateCache() const { QPixmapCache::remove(m_cacheKey); }
+
+    friend class QGraphicsScenePrivate;
+    friend class QGraphicsItem;
+    friend class QGraphicsItemPrivate;
+
+private:
+    mutable Qt::CoordinateSystem m_cachedSystem;
+    mutable QPoint m_cachedOffset;
+    mutable QPixmapCache::Key m_cacheKey;
+};
+
+class Q_GUI_EXPORT QGraphicsEffectPrivate : public QObjectPrivate
+{
+    Q_DECLARE_PUBLIC(QGraphicsEffect)
+public:
+    QGraphicsEffectPrivate() : source(0), isEnabled(1) {}
+
+    inline void setGraphicsEffectSource(QGraphicsEffectSource *newSource)
+    {
+        QGraphicsEffect::ChangeFlags flags;
+        if (source) {
+            flags |= QGraphicsEffect::SourceDetached;
+            source->d_func()->detach();
+            source->d_func()->invalidateCache();
+            delete source;
+        }
+        source = newSource;
+        if (newSource)
+            flags |= QGraphicsEffect::SourceAttached;
+        q_func()->sourceChanged(flags);
+    }
+
+    QGraphicsEffectSource *source;
+    QRectF boundingRect;
+    quint32 isEnabled : 1;
+    quint32 padding : 31; // feel free to use
+};
+
+class QGraphicsGrayscaleEffectPrivate : public QGraphicsEffectPrivate
+{
+    Q_DECLARE_PUBLIC(QGraphicsGrayscaleEffect)
+public:
+    QGraphicsGrayscaleEffectPrivate()
+        : opaque(true)
+    {
+        filter = new QPixmapColorizeFilter;
+        filter->setColor(Qt::black);
+    }
+    ~QGraphicsGrayscaleEffectPrivate() { delete filter; }
+
+    QPixmapColorizeFilter *filter;
+    quint32 opaque : 1;
+    quint32 padding : 31;
+};
+
+class QGraphicsColorizeEffectPrivate : public QGraphicsEffectPrivate
+{
+    Q_DECLARE_PUBLIC(QGraphicsColorizeEffect)
+public:
+    QGraphicsColorizeEffectPrivate()
+        : opaque(true)
+    {
+        filter = new QPixmapColorizeFilter;
+    }
+    ~QGraphicsColorizeEffectPrivate() { delete filter; }
+
+    QPixmapColorizeFilter *filter;
+    quint32 opaque : 1;
+    quint32 padding : 31;
+};
+
+class QGraphicsPixelizeEffectPrivate : public QGraphicsEffectPrivate
+{
+    Q_DECLARE_PUBLIC(QGraphicsPixelizeEffect)
+public:
+    QGraphicsPixelizeEffectPrivate() : pixelSize(3) {}
+
+    int pixelSize;
+};
+
+class QGraphicsBlurEffectPrivate : public QGraphicsEffectPrivate
+{
+    Q_DECLARE_PUBLIC(QGraphicsBlurEffect)
+public:
+    QGraphicsBlurEffectPrivate() : filter(new QPixmapBlurFilter) {}
+    ~QGraphicsBlurEffectPrivate() { delete filter; }
+
+    QPixmapBlurFilter *filter;
+};
+
+class QGraphicsDropShadowEffectPrivate : public QGraphicsEffectPrivate
+{
+    Q_DECLARE_PUBLIC(QGraphicsDropShadowEffect)
+public:
+    QGraphicsDropShadowEffectPrivate() : filter(new QPixmapDropShadowFilter) {}
+    ~QGraphicsDropShadowEffectPrivate() { delete filter; }
+
+    QPixmapDropShadowFilter *filter;
+};
+
+class QGraphicsOpacityEffectPrivate : public QGraphicsEffectPrivate
+{
+    Q_DECLARE_PUBLIC(QGraphicsOpacityEffect)
+public:
+    QGraphicsOpacityEffectPrivate()
+        : opacity(qreal(0.7)), isFullyTransparent(0), isFullyOpaque(0), hasOpacityMask(0) {}
+    ~QGraphicsOpacityEffectPrivate() {}
+
+    qreal opacity;
+    QBrush opacityMask;
+    uint isFullyTransparent : 1;
+    uint isFullyOpaque : 1;
+    uint hasOpacityMask : 1;
+};
+
+class QGraphicsBloomEffectPrivate : public QGraphicsEffectPrivate
+{
+    Q_DECLARE_PUBLIC(QGraphicsBlurEffect)
+public:
+    QGraphicsBloomEffectPrivate() : brightness(70), strength(qreal(0.7)) {}
+
+    QPixmapBlurFilter blurFilter;
+    int colorTable[256];
+    int brightness;
+    qreal strength;
+};
+
+QT_END_NAMESPACE
+
+#endif // QGRAPHICSEFFECT_P_H
+