Long live Qt 4.5!

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diff --git a/src/gui/painting/qpaintengine_alpha_p.h b/src/gui/painting/qpaintengine_alpha_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPAINTENGINE_ALPHA_P_H
+#define QPAINTENGINE_ALPHA_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#ifndef QT_NO_PRINTER
+#include "private/qpaintengine_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QAlphaPaintEnginePrivate;
+
+class QAlphaPaintEngine : public QPaintEngine
+{
+    Q_DECLARE_PRIVATE(QAlphaPaintEngine)
+public:
+    ~QAlphaPaintEngine();
+
+    virtual bool begin(QPaintDevice *pdev);
+    virtual bool end();
+
+    virtual void updateState(const QPaintEngineState &state);
+
+    virtual void drawPath(const QPainterPath &path);
+
+    virtual void drawPolygon(const QPointF *points, int pointCount, PolygonDrawMode mode);
+
+    virtual void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr);
+    virtual void drawImage(const QRectF &r, const QImage &image, const QRectF &sr);
+    virtual void drawTextItem(const QPointF &p, const QTextItem &textItem);
+    virtual void drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &s);
+
+protected:
+    QAlphaPaintEngine(QAlphaPaintEnginePrivate &data, PaintEngineFeatures devcaps = 0);
+    QRegion alphaClipping() const;
+    bool continueCall() const;
+    void flushAndInit(bool init = true);
+    void cleanUp();
+};
+
+class QAlphaPaintEnginePrivate : public QPaintEnginePrivate
+{
+    Q_DECLARE_PUBLIC(QAlphaPaintEngine)
+public:
+    QAlphaPaintEnginePrivate();
+    ~QAlphaPaintEnginePrivate();
+
+    int m_pass;
+    QPicture *m_pic;
+    QPaintEngine *m_picengine;
+    QPainter *m_picpainter;
+
+    QPaintEngine::PaintEngineFeatures m_savedcaps;
+    QPaintDevice *m_pdev;
+
+    QRegion m_alphargn;
+    QRegion m_cliprgn;
+
+    bool m_hasalpha;
+    bool m_alphaPen;
+    bool m_alphaBrush;
+    bool m_alphaOpacity;
+    bool m_advancedPen;
+    bool m_advancedBrush;
+    bool m_complexTransform;
+    bool m_continueCall;
+
+    QTransform m_transform;
+    QPen m_pen;
+
+    void addAlphaRect(const QRectF &rect);
+    QRectF addPenWidth(const QPainterPath &path);
+    void drawAlphaImage(const QRectF &rect);
+    QRect toRect(const QRectF &rect) const;
+    bool fullyContained(const QRectF &rect) const;
+
+    void resetState(QPainter *p);
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_PRINTER
+
+#endif // QPAINTENGINE_ALPHA_P_H