Long live Qt 4.5!

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diff --git a/src/gui/painting/qprintengine_pdf_p.h b/src/gui/painting/qprintengine_pdf_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 QPRINTENGINE_PDF_P_H
+#define QPRINTENGINE_PDF_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/qprintengine.h"
+
+#ifndef QT_NO_PRINTER
+#include "QtCore/qmap.h"
+#include "QtGui/qmatrix.h"
+#include "QtCore/qstring.h"
+#include "QtCore/qvector.h"
+#include "QtGui/qpaintengine.h"
+#include "QtGui/qpainterpath.h"
+#include "QtCore/qdatastream.h"
+
+#include "private/qfontengine_p.h"
+#include "private/qpdf_p.h"
+#include "private/qpaintengine_p.h"
+
+QT_BEGIN_NAMESPACE
+
+// #define USE_NATIVE_GRADIENTS
+
+class QImage;
+class QDataStream;
+class QPen;
+class QPointF;
+class QRegion;
+class QFile;
+class QPdfEngine;
+
+class QPdfEnginePrivate;
+
+class QPdfEngine : public QPdfBaseEngine
+{
+    Q_DECLARE_PRIVATE(QPdfEngine)
+public:
+    QPdfEngine(QPrinter::PrinterMode m);
+    virtual ~QPdfEngine();
+
+    // reimplementations QPaintEngine
+    bool begin(QPaintDevice *pdev);
+    bool end();
+    void drawPixmap (const QRectF & rectangle, const QPixmap & pixmap, const QRectF & sr);
+    void drawImage(const QRectF &r, const QImage &pm, const QRectF &sr,
+                   Qt::ImageConversionFlags flags = Qt::AutoColor);
+    void drawTiledPixmap (const QRectF & rectangle, const QPixmap & pixmap, const QPointF & point);
+
+    Type type() const;
+    // end reimplementations QPaintEngine
+
+    // reimplementations QPrintEngine
+    bool abort() {return false;}
+    bool newPage();
+    QPrinter::PrinterState printerState() const {return state;}
+    // end reimplementations QPrintEngine
+
+    void setBrush();
+
+    // ### unused, should have something for this in QPrintEngine
+    void setAuthor(const QString &author);
+    QString author() const;
+
+    void setDevice(QIODevice* dev);
+
+private:
+    Q_DISABLE_COPY(QPdfEngine)
+
+    QPrinter::PrinterState state;
+};
+
+class QPdfEnginePrivate : public QPdfBaseEnginePrivate
+{
+    Q_DECLARE_PUBLIC(QPdfEngine)
+public:
+    QPdfEnginePrivate(QPrinter::PrinterMode m);
+    ~QPdfEnginePrivate();
+
+    void newPage();
+
+    int width() const {
+        QRect r = paperRect();
+        return qRound(r.width()*72./resolution);
+    }
+    int height() const {
+        QRect r = paperRect();
+        return qRound(r.height()*72./resolution);
+    }
+
+    void writeHeader();
+    void writeTail();
+
+    int addImage(const QImage &image, bool *bitmap, qint64 serial_no);
+    int addConstantAlphaObject(int brushAlpha, int penAlpha = 255);
+    int addBrushPattern(const QTransform &matrix, bool *specifyColor, int *gStateObject);
+
+    void drawTextItem(const QPointF &p, const QTextItemInt &ti);
+
+    QTransform pageMatrix() const;
+
+private:
+    Q_DISABLE_COPY(QPdfEnginePrivate)
+
+#ifdef USE_NATIVE_GRADIENTS
+    int gradientBrush(const QBrush &b, const QMatrix &matrix, int *gStateObject);
+#endif
+
+    void writeInfo();
+    void writePageRoot();
+    void writeFonts();
+    void embedFont(QFontSubset *font);
+
+    QVector<int> xrefPositions;
+    QDataStream* stream;
+    int streampos;
+
+    int writeImage(const QByteArray &data, int width, int height, int depth,
+                   int maskObject, int softMaskObject, bool dct = false);
+    void writePage();
+
+    int addXrefEntry(int object, bool printostr = true);
+    void xprintf(const char* fmt, ...);
+    inline void write(const QByteArray &data) {
+        stream->writeRawData(data.constData(), data.size());
+        streampos += data.size();
+    }
+
+    int writeCompressed(const char *src, int len);
+    inline int writeCompressed(const QByteArray &data) { return writeCompressed(data.constData(), data.length()); }
+    int writeCompressed(QIODevice *dev);
+
+    // various PDF objects
+    int pageRoot, catalog, info, graphicsState, patternColorSpace;
+    QVector<uint> pages;
+    QHash<qint64, uint> imageCache;
+    QHash<QPair<uint, uint>, uint > alphaCache;
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_PRINTER
+
+#endif // QPRINTENGINE_PDF_P_H