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tqtinterface/qtinterface/qt4/Qt/qtextstream.h

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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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 1.1, 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 have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#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>
#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)
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:
QTextStreamManipulator(QTSMFI m, int a) { mf = m; mc = 0; arg = a; }
QTextStreamManipulator(QTSMFC m, QChar c) { mf = 0; mc = m; ch = c; arg = -1; }
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