source: trunk/src/corelib/io/qtextstream.h@ 604

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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>
#include <QtCore/qscopedpointer.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);