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Diffstat (limited to 'src/corelib/serialization/qtextstream.h')
| -rw-r--r-- | src/corelib/serialization/qtextstream.h | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/src/corelib/serialization/qtextstream.h b/src/corelib/serialization/qtextstream.h new file mode 100644 index 0000000000..ee0b09419d --- /dev/null +++ b/src/corelib/serialization/qtextstream.h @@ -0,0 +1,287 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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> + +#include <stdio.h> + +#ifdef Status +#error qtextstream.h must be included before any header file that defines Status +#endif + +QT_BEGIN_NAMESPACE + + +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, + WriteFailed + }; + 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); + bool readLineInto(QString *line, 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<<(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<<(QLatin1String s); + QTextStream &operator<<(const QStringRef &s); + QTextStream &operator<<(const QByteArray &array); + QTextStream &operator<<(const char *c); + QTextStream &operator<<(const void *ptr); + +private: + Q_DISABLE_COPY(QTextStream) + friend class QDebugStateSaverPrivate; + friend class QDebug; + + QScopedPointer<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: + Q_DECL_CONSTEXPR QTextStreamManipulator(QTSMFI m, int a) Q_DECL_NOTHROW : mf(m), mc(nullptr), arg(a), ch() {} + Q_DECL_CONSTEXPR QTextStreamManipulator(QTSMFC m, QChar c) Q_DECL_NOTHROW : mf(nullptr), mc(m), arg(-1), 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 ¢er(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); +} + +QT_END_NAMESPACE + +#endif // QTEXTSTREAM_H |