/****************************************************************************+
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**+
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QPDF_P_H+
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#define QPDF_P_H+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  It exists purely as an+
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// implementation detail.  This header file may change from version to+
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// version without notice, or even be removed.+
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//+
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// We mean it.+
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//+
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#include "QtGui/qmatrix.h"+
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#include "QtCore/qstring.h"+
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#include "QtCore/qvector.h"+
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#include "private/qstroker_p.h"+
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#include "private/qfontengine_p.h"+
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#include "QtGui/qprinter.h"+
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#include "private/qfontsubset_p.h"+
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#include "private/qpaintengine_alpha_p.h"+
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#include "qprintengine.h"+
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#include "qbuffer.h"+
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+
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#ifndef QT_NO_PRINTER+
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+
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QT_BEGIN_NAMESPACE+
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+
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#define PPK_CupsOptions QPrintEngine::PrintEnginePropertyKey(0xfe00)+
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#define PPK_CupsPageRect QPrintEngine::PrintEnginePropertyKey(0xfe01)+
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#define PPK_CupsPaperRect QPrintEngine::PrintEnginePropertyKey(0xfe02)+
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#define PPK_CupsStringPageSize QPrintEngine::PrintEnginePropertyKey(0xfe03)+
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+
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const char *qt_real_to_string(qreal val, char *buf);+
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const char *qt_int_to_string(int val, char *buf);+
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+
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namespace QPdf {+
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+
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    class ByteStream+
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    {+
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    public:+
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        // fileBacking means that ByteStream will buffer the contents on disk+
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        // if the size exceeds a certain threshold. In this case, if a byte+
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        // array was passed in, its contents may no longer correspond to the+
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        // ByteStream contents.+
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        explicit ByteStream(bool fileBacking = false);+
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        explicit ByteStream(QByteArray *ba, bool fileBacking = false);+
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        ~ByteStream();+
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        ByteStream &operator <<(char chr);+
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        ByteStream &operator <<(const char *str);+
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        ByteStream &operator <<(const QByteArray &str);+
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        ByteStream &operator <<(const ByteStream &src);+
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        ByteStream &operator <<(qreal val);+
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        ByteStream &operator <<(int val);+
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        ByteStream &operator <<(const QPointF &p);+
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        // Note that the stream may be invalidated by calls that insert data.+
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        QIODevice *stream();+
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        void clear();+
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+
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        static inline int maxMemorySize() { return 100000000; }+
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        static inline int chunkSize()     { return 10000000; }+
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+
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    protected:+
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        void constructor_helper(QIODevice *dev);+
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        void constructor_helper(QByteArray *ba);+
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+
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    private:+
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        void prepareBuffer();+
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+
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    private:+
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        QIODevice *dev;+
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        QByteArray ba;+
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        bool fileBackingEnabled;+
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        bool fileBackingActive;+
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        bool handleDirty;+
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    };+
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+
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    enum PathFlags {+
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        ClipPath,+
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        FillPath,+
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        StrokePath,+
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        FillAndStrokePath+
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    };+
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    QByteArray generatePath(const QPainterPath &path, const QTransform &matrix, PathFlags flags);+
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    QByteArray generateMatrix(const QTransform &matrix);+
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    QByteArray generateDashes(const QPen &pen);+
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    QByteArray patternForBrush(const QBrush &b);+
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#ifdef USE_NATIVE_GRADIENTS+
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    QByteArray generateLinearGradientShader(const QLinearGradient *lg, const QPointF *page_rect, bool alpha = false);+
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#endif+
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+
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    struct Stroker {+
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        Stroker();+
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        void setPen(const QPen &pen);+
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        void strokePath(const QPainterPath &path);+
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        ByteStream *stream;+
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        bool first;+
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        QTransform matrix;+
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        bool cosmeticPen;+
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    private:+
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        QStroker basicStroker;+
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        QDashStroker dashStroker;+
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        QStrokerOps *stroker;+
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    };+
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+
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    QByteArray ascii85Encode(const QByteArray &input);+
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+
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    const char *toHex(ushort u, char *buffer);+
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    const char *toHex(uchar u, char *buffer);+
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+
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+
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    struct PaperSize {+
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        int width, height; // in postscript points+
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    };+
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    PaperSize paperSize(QPrinter::PaperSize paperSize);+
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    const char *paperSizeToString(QPrinter::PaperSize paperSize);+
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+
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+
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    QByteArray stripSpecialCharacters(const QByteArray &string);+
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}+
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+
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+
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class QPdfPage : public QPdf::ByteStream+
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{+
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public:+
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    QPdfPage();+
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+
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    QVector<uint> images;+
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    QVector<uint> graphicStates;+
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    QVector<uint> patterns;+
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    QVector<uint> fonts;+
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    QVector<uint> annotations;+
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+
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    void streamImage(int w, int h, int object);+
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+
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    QSize pageSize;+
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private:+
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};+
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+
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+
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class QPdfBaseEnginePrivate;+
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+
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class QPdfBaseEngine : public QAlphaPaintEngine, public QPrintEngine+
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{+
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    Q_DECLARE_PRIVATE(QPdfBaseEngine)+
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public:+
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    QPdfBaseEngine(QPdfBaseEnginePrivate &d, PaintEngineFeatures f);+
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    ~QPdfBaseEngine() {}+
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+
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    // reimplementations QPaintEngine+
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    bool begin(QPaintDevice *pdev);+
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    bool end();+
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+
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    void drawPoints(const QPointF *points, int pointCount);+
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    void drawLines(const QLineF *lines, int lineCount);+
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    void drawRects(const QRectF *rects, int rectCount);+
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    void drawPolygon(const QPointF *points, int pointCount, PolygonDrawMode mode);+
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    void drawPath (const QPainterPath & path);+
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+
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    void drawTextItem(const QPointF &p, const QTextItem &textItem);+
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+
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    void updateState(const QPaintEngineState &state);+
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+
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    int metric(QPaintDevice::PaintDeviceMetric metricType) const;+
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    // end reimplementations QPaintEngine+
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+
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    // Printer stuff...+
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    bool newPage();+
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    void setProperty(PrintEnginePropertyKey key, const QVariant &value);+
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    QVariant property(PrintEnginePropertyKey key) const;+
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+
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    void setPen();+
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    virtual void setBrush() = 0;+
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    void setupGraphicsState(QPaintEngine::DirtyFlags flags);+
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+
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private:+
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    void updateClipPath(const QPainterPath & path, Qt::ClipOperation op);+
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+
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    friend int qt_printerRealNumCopies(QPaintEngine *);+
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};+
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+
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class QPdfBaseEnginePrivate : public QAlphaPaintEnginePrivate+
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{+
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    Q_DECLARE_PUBLIC(QPdfBaseEngine)+
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public:+
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    QPdfBaseEnginePrivate(QPrinter::PrinterMode m);+
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    ~QPdfBaseEnginePrivate();+
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+
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    bool openPrintDevice();+
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    void closePrintDevice();+
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+
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+
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    virtual void drawTextItem(const QPointF &p, const QTextItemInt &ti);+
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    inline uint requestObject() { return currentObject++; }+
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+
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    QRect paperRect() const;+
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    QRect pageRect() const;+
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+
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    bool postscript;+
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    int currentObject;+
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+
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    QPdfPage* currentPage;+
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    QPdf::Stroker stroker;+
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+
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    QPointF brushOrigin;+
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    QBrush brush;+
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    QPen pen;+
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    QList<QPainterPath> clips;+
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    bool clipEnabled;+
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    bool allClipped;+
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    bool hasPen;+
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    bool hasBrush;+
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    bool simplePen;+
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    qreal opacity;+
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    bool useAlphaEngine;+
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+
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    QHash<QFontEngine::FaceId, QFontSubset *> fonts;+
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+
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    QPaintDevice *pdev;+
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+
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    // the device the output is in the end streamed to.+
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    QIODevice *outDevice;+
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    int fd;+
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+
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    // printer options+
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    QString outputFileName;+
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    QString printerName;+
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    QString printProgram;+
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    QString selectionOption;+
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    QString title;+
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    QString creator;+
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    QPrinter::DuplexMode duplex;+
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    bool collate;+
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    bool fullPage;+
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    bool embedFonts;+
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    int copies;+
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    int resolution;+
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    QPrinter::PageOrder pageOrder;+
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    QPrinter::Orientation orientation;+
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    QPrinter::PaperSize paperSize;+
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    QPrinter::ColorMode colorMode;+
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    QPrinter::PaperSource paperSource;+
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+
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    QStringList cupsOptions;+
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    QRect cupsPaperRect;+
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    QRect cupsPageRect;+
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    QString cupsStringPageSize;+
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    QSizeF customPaperSize; // in postscript points+
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    bool hasCustomPageMargins;+
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    qreal leftMargin, topMargin, rightMargin, bottomMargin;+
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+
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#if !defined(QT_NO_CUPS) && !defined(QT_NO_LIBRARY)+
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    QString cupsTempFile;+
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#endif+
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};+
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+
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QT_END_NAMESPACE+
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+
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#endif // QT_NO_PRINTER+
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+
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#endif // QPDF_P_H+
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+
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