/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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** Contact: Nokia Corporation (qt-info@nokia.com)

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** This file is part of the QtCore module of the Qt Toolkit.

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** 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

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**

** 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

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** $QT_END_LICENSE$

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****************************************************************************/

#ifndef QTEXTSTREAM_H

#define QTEXTSTREAM_H

#include <QtCore/qiodevice.h>

#include <QtCore/qstring.h>

#include <QtCore/qchar.h>

#include <QtCore/qlocale.h>

#ifndef QT_NO_TEXTCODEC

#  ifdef QT3_SUPPORT

#    include <QtCore/qtextcodec.h>

#  endif

#endif

#include <stdio.h>

#ifdef Status

#error qtextstream.h must be included before any header file that defines Status

#endif

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Core)

class QTextCodec;

class QTextDecoder;

class QTextStreamPrivate;

class Q_CORE_EXPORT QTextStream                                // text stream class

{

    Q_DECLARE_PRIVATE(QTextStream)

public:

    enum RealNumberNotation {

        SmartNotation,

        FixedNotation,

        ScientificNotation

    };

    enum FieldAlignment {

        AlignLeft,

        AlignRight,

        AlignCenter,

        AlignAccountingStyle

    };

    enum Status {

        Ok,

        ReadPastEnd,

        ReadCorruptData

    };

    enum NumberFlag {

        ShowBase = 0x1,

        ForcePoint = 0x2,

        ForceSign = 0x4,

        UppercaseBase = 0x8,

        UppercaseDigits = 0x10

    };

    Q_DECLARE_FLAGS(NumberFlags, NumberFlag)

    QTextStream();

    explicit QTextStream(QIODevice *device);

    explicit QTextStream(FILE *fileHandle, QIODevice::OpenMode openMode = QIODevice::ReadWrite);

    explicit QTextStream(QString *string, QIODevice::OpenMode openMode = QIODevice::ReadWrite);

    explicit QTextStream(QByteArray *array, QIODevice::OpenMode openMode = QIODevice::ReadWrite);

    explicit QTextStream(const QByteArray &array, QIODevice::OpenMode openMode = QIODevice::ReadOnly);

    virtual ~QTextStream();

#ifndef QT_NO_TEXTCODEC

    void setCodec(QTextCodec *codec);

    void setCodec(const char *codecName);

    QTextCodec *codec() const;

    void setAutoDetectUnicode(bool enabled);

    bool autoDetectUnicode() const;

    void setGenerateByteOrderMark(bool generate);

    bool generateByteOrderMark() const;

#endif

    void setLocale(const QLocale &locale);

    QLocale locale() const;

    void setDevice(QIODevice *device);

    QIODevice *device() const;

    void setString(QString *string, QIODevice::OpenMode openMode = QIODevice::ReadWrite);

    QString *string() const;

    Status status() const;

    void setStatus(Status status);

    void resetStatus();

    bool atEnd() const;

    void reset();

    void flush();

    bool seek(qint64 pos);

    qint64 pos() const;

    void skipWhiteSpace();

    QString readLine(qint64 maxlen = 0);

    QString readAll();

    QString read(qint64 maxlen);

    void setFieldAlignment(FieldAlignment alignment);

    FieldAlignment fieldAlignment() const;

    void setPadChar(QChar ch);

    QChar padChar() const;

    void setFieldWidth(int width);

    int fieldWidth() const;

    void setNumberFlags(NumberFlags flags);

    NumberFlags numberFlags() const;

    void setIntegerBase(int base);

    int integerBase() const;

    void setRealNumberNotation(RealNumberNotation notation);

    RealNumberNotation realNumberNotation() const;

    void setRealNumberPrecision(int precision);

    int realNumberPrecision() const;

    QTextStream &operator>>(QChar &ch);

    QTextStream &operator>>(char &ch);

    QTextStream &operator>>(signed short &i);

    QTextStream &operator>>(unsigned short &i);

    QTextStream &operator>>(signed int &i);

    QTextStream &operator>>(unsigned int &i);

    QTextStream &operator>>(signed long &i);

    QTextStream &operator>>(unsigned long &i);

    QTextStream &operator>>(qlonglong &i);

    QTextStream &operator>>(qulonglong &i);

    QTextStream &operator>>(float &f);

    QTextStream &operator>>(double &f);

    QTextStream &operator>>(QString &s);

    QTextStream &operator>>(QByteArray &array);

    QTextStream &operator>>(char *c);

    QTextStream &operator<<(QBool b);

    QTextStream &operator<<(QChar ch);

    QTextStream &operator<<(char ch);

    QTextStream &operator<<(signed short i);

    QTextStream &operator<<(unsigned short i);

    QTextStream &operator<<(signed int i);

    QTextStream &operator<<(unsigned int i);

    QTextStream &operator<<(signed long i);

    QTextStream &operator<<(unsigned long i);

    QTextStream &operator<<(qlonglong i);

    QTextStream &operator<<(qulonglong i);

    QTextStream &operator<<(float f);

    QTextStream &operator<<(double f);

    QTextStream &operator<<(const QString &s);

    QTextStream &operator<<(const QByteArray &array);

    QTextStream &operator<<(const char *c);

    QTextStream &operator<<(const void *ptr);

#ifdef QT3_SUPPORT

    // not marked as QT3_SUPPORT to avoid double compiler warnings, as

    // they are used in the QT3_SUPPORT functions below.

    inline QT3_SUPPORT int flags() const { return flagsInternal(); }

    inline QT3_SUPPORT int flags(int f) { return flagsInternal(f); }

    inline QT3_SUPPORT int setf(int bits)

    { int old = flagsInternal(); flagsInternal(flagsInternal() | bits); return old; }

    inline QT3_SUPPORT int setf(int bits, int mask)

    { int old = flagsInternal(); flagsInternal(flagsInternal() | (bits & mask)); return old; }

    inline QT3_SUPPORT int unsetf(int bits)

    { int old = flagsInternal(); flagsInternal(flagsInternal() & ~bits); return old; }

    inline QT3_SUPPORT int width(int w)

    { int old = fieldWidth(); setFieldWidth(w); return old; }

    inline QT3_SUPPORT int fill(int f)

    { QChar ch = padChar(); setPadChar(QChar(f)); return ch.unicode(); }

    inline QT3_SUPPORT int precision(int p)

    { int old = realNumberPrecision(); setRealNumberPrecision(p); return old; }

    enum {

        skipws       = 0x0001,                        // skip whitespace on input

        left         = 0x0002,                        // left-adjust output

        right        = 0x0004,                        // right-adjust output

        internal     = 0x0008,                        // pad after sign

        bin          = 0x0010,                        // binary format integer

        oct          = 0x0020,                        // octal format integer

        dec          = 0x0040,                        // decimal format integer

        hex          = 0x0080,                        // hex format integer

        showbase     = 0x0100,                        // show base indicator

        showpoint    = 0x0200,                        // force decimal point (float)

        uppercase    = 0x0400,                        // upper-case hex output

        showpos      = 0x0800,                        // add '+' to positive integers

        scientific   = 0x1000,                        // scientific float output

        fixed        = 0x2000                         // fixed float output

    };

    enum {

        basefield = bin | oct | dec | hex,

        adjustfield = left | right | internal,

        floatfield = scientific | fixed

    };

#ifndef QT_NO_TEXTCODEC

    enum Encoding { Locale, Latin1, Unicode, UnicodeNetworkOrder,

                    UnicodeReverse, RawUnicode, UnicodeUTF8 };

    QT3_SUPPORT void setEncoding(Encoding encoding);

#endif

    inline QT3_SUPPORT QString read() { return readAll(); }

    inline QT3_SUPPORT void unsetDevice() { setDevice(0); }

#endif

private:

#ifdef QT3_SUPPORT

    int flagsInternal() const;

    int flagsInternal(int flags);

#endif

    Q_DISABLE_COPY(QTextStream)

    QTextStreamPrivate *d_ptr;

};

Q_DECLARE_OPERATORS_FOR_FLAGS(QTextStream::NumberFlags)

/*****************************************************************************

  QTextStream manipulators

 *****************************************************************************/

typedef QTextStream & (*QTextStreamFunction)(QTextStream &);// manipulator function

typedef void (QTextStream::*QTSMFI)(int); // manipulator w/int argument

typedef void (QTextStream::*QTSMFC)(QChar); // manipulator w/QChar argument

class Q_CORE_EXPORT QTextStreamManipulator

{

public:

    QTextStreamManipulator(QTSMFI m, int a) { mf = m; mc = 0; arg = a; }

    QTextStreamManipulator(QTSMFC m, QChar c) { mf = 0; mc = m; ch = c; }

    void exec(QTextStream &s) { if (mf) { (s.*mf)(arg); } else { (s.*mc)(ch); } }

private:

    QTSMFI mf;                                        // QTextStream member function

    QTSMFC mc;                                        // QTextStream member function

    int arg;                                          // member function argument

    QChar ch;

};

inline QTextStream &operator>>(QTextStream &s, QTextStreamFunction f)

{ return (*f)(s); }

inline QTextStream &operator<<(QTextStream &s, QTextStreamFunction f)

{ return (*f)(s); }

inline QTextStream &operator<<(QTextStream &s, QTextStreamManipulator m)

{ m.exec(s); return s; }

Q_CORE_EXPORT QTextStream &bin(QTextStream &s);

Q_CORE_EXPORT QTextStream &oct(QTextStream &s);

Q_CORE_EXPORT QTextStream &dec(QTextStream &s);

Q_CORE_EXPORT QTextStream &hex(QTextStream &s);

Q_CORE_EXPORT QTextStream &showbase(QTextStream &s);

Q_CORE_EXPORT QTextStream &forcesign(QTextStream &s);

Q_CORE_EXPORT QTextStream &forcepoint(QTextStream &s);

Q_CORE_EXPORT QTextStream &noshowbase(QTextStream &s);

Q_CORE_EXPORT QTextStream &noforcesign(QTextStream &s);

Q_CORE_EXPORT QTextStream &noforcepoint(QTextStream &s);

Q_CORE_EXPORT QTextStream &uppercasebase(QTextStream &s);

Q_CORE_EXPORT QTextStream &uppercasedigits(QTextStream &s);

Q_CORE_EXPORT QTextStream &lowercasebase(QTextStream &s);

Q_CORE_EXPORT QTextStream &lowercasedigits(QTextStream &s);

Q_CORE_EXPORT QTextStream &fixed(QTextStream &s);

Q_CORE_EXPORT QTextStream &scientific(QTextStream &s);

Q_CORE_EXPORT QTextStream &left(QTextStream &s);

Q_CORE_EXPORT QTextStream &right(QTextStream &s);

Q_CORE_EXPORT QTextStream &center(QTextStream &s);

Q_CORE_EXPORT QTextStream &endl(QTextStream &s);

Q_CORE_EXPORT QTextStream &flush(QTextStream &s);

Q_CORE_EXPORT QTextStream &reset(QTextStream &s);

Q_CORE_EXPORT QTextStream &bom(QTextStream &s);

Q_CORE_EXPORT QTextStream &ws(QTextStream &s);

inline QTextStreamManipulator qSetFieldWidth(int width)

{

    QTSMFI func = &QTextStream::setFieldWidth;

    return QTextStreamManipulator(func,width);

}

inline QTextStreamManipulator qSetPadChar(QChar ch)

{

    QTSMFC func = &QTextStream::setPadChar;

    return QTextStreamManipulator(func, ch);

}

inline QTextStreamManipulator qSetRealNumberPrecision(int precision)

{

    QTSMFI func = &QTextStream::setRealNumberPrecision;

    return QTextStreamManipulator(func, precision);

}

#ifdef QT3_SUPPORT

typedef QTextStream QTS;

class Q_CORE_EXPORT QTextIStream : public QTextStream

{

public:

    inline explicit QTextIStream(const QString *s) : QTextStream(const_cast<QString *>(s), QIODevice::ReadOnly) {}

    inline explicit QTextIStream(QByteArray *a) : QTextStream(a, QIODevice::ReadOnly) {}

    inline QTextIStream(FILE *f) : QTextStream(f, QIODevice::ReadOnly) {}

private:

    Q_DISABLE_COPY(QTextIStream)

};

class Q_CORE_EXPORT QTextOStream : public QTextStream

{

public:

    inline explicit QTextOStream(QString *s) : QTextStream(s, QIODevice::WriteOnly) {}

    inline explicit QTextOStream(QByteArray *a) : QTextStream(a, QIODevice::WriteOnly) {}

    inline QTextOStream(FILE *f) : QTextStream(f, QIODevice::WriteOnly) {}

private:

    Q_DISABLE_COPY(QTextOStream)

};

#endif

QT_END_NAMESPACE

QT_END_HEADER

#endif // QTEXTSTREAM_H