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377 lines
13 KiB
377 lines
13 KiB
/****************************************************************************
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**
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** Copyright (C) 2010 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 QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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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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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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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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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QTEXTSTREAM_H
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#define QTEXTSTREAM_H
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#include <QtCore/qiodevice.h>
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#include <QtCore/qstring.h>
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#include <QtCore/qchar.h>
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#include <QtCore/qlocale.h>
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#include <QtCore/qscopedpointer.h>
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#ifndef QT_NO_TEXTCODEC
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# ifdef QT3_SUPPORT
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# include <QtCore/qtextcodec.h>
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# endif
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#endif
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#include <stdio.h>
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#ifdef Status
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#error qtextstream.h must be included before any header file that defines Status
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#endif
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Core)
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class QTextCodec;
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class QTextDecoder;
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class QTextStreamPrivate;
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class Q_CORE_EXPORT QTextStream // text stream class
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{
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Q_DECLARE_PRIVATE(QTextStream)
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public:
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enum RealNumberNotation {
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SmartNotation,
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FixedNotation,
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ScientificNotation
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};
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enum FieldAlignment {
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AlignLeft,
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AlignRight,
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AlignCenter,
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AlignAccountingStyle
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};
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enum Status {
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Ok,
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ReadPastEnd,
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ReadCorruptData
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};
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enum NumberFlag {
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ShowBase = 0x1,
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ForcePoint = 0x2,
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ForceSign = 0x4,
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UppercaseBase = 0x8,
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UppercaseDigits = 0x10
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};
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Q_DECLARE_FLAGS(NumberFlags, NumberFlag)
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QTextStream();
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explicit QTextStream(QIODevice *device);
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explicit QTextStream(FILE *fileHandle, QIODevice::OpenMode openMode = QIODevice::ReadWrite);
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explicit QTextStream(QString *string, QIODevice::OpenMode openMode = QIODevice::ReadWrite);
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explicit QTextStream(QByteArray *array, QIODevice::OpenMode openMode = QIODevice::ReadWrite);
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explicit QTextStream(const QByteArray &array, QIODevice::OpenMode openMode = QIODevice::ReadOnly);
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virtual ~QTextStream();
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#ifndef QT_NO_TEXTCODEC
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void setCodec(QTextCodec *codec);
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void setCodec(const char *codecName);
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QTextCodec *codec() const;
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void setAutoDetectUnicode(bool enabled);
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bool autoDetectUnicode() const;
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void setGenerateByteOrderMark(bool generate);
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bool generateByteOrderMark() const;
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#endif
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void setLocale(const QLocale &locale);
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QLocale locale() const;
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void setDevice(QIODevice *device);
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QIODevice *device() const;
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void setString(QString *string, QIODevice::OpenMode openMode = QIODevice::ReadWrite);
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QString *string() const;
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Status status() const;
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void setStatus(Status status);
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void resetStatus();
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bool atEnd() const;
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void reset();
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void flush();
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bool seek(qint64 pos);
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qint64 pos() const;
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void skipWhiteSpace();
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QString readLine(qint64 maxlen = 0);
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QString readAll();
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QString read(qint64 maxlen);
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void setFieldAlignment(FieldAlignment alignment);
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FieldAlignment fieldAlignment() const;
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void setPadChar(QChar ch);
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QChar padChar() const;
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void setFieldWidth(int width);
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int fieldWidth() const;
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void setNumberFlags(NumberFlags flags);
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NumberFlags numberFlags() const;
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void setIntegerBase(int base);
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int integerBase() const;
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void setRealNumberNotation(RealNumberNotation notation);
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RealNumberNotation realNumberNotation() const;
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void setRealNumberPrecision(int precision);
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int realNumberPrecision() const;
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QTextStream &operator>>(QChar &ch);
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QTextStream &operator>>(char &ch);
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QTextStream &operator>>(signed short &i);
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QTextStream &operator>>(unsigned short &i);
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QTextStream &operator>>(signed int &i);
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QTextStream &operator>>(unsigned int &i);
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QTextStream &operator>>(signed long &i);
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QTextStream &operator>>(unsigned long &i);
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QTextStream &operator>>(qlonglong &i);
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QTextStream &operator>>(qulonglong &i);
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QTextStream &operator>>(float &f);
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QTextStream &operator>>(double &f);
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QTextStream &operator>>(QString &s);
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QTextStream &operator>>(QByteArray &array);
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QTextStream &operator>>(char *c);
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QTextStream &operator<<(QBool b);
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QTextStream &operator<<(QChar ch);
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QTextStream &operator<<(char ch);
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QTextStream &operator<<(signed short i);
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QTextStream &operator<<(unsigned short i);
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QTextStream &operator<<(signed int i);
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QTextStream &operator<<(unsigned int i);
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QTextStream &operator<<(signed long i);
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QTextStream &operator<<(unsigned long i);
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QTextStream &operator<<(qlonglong i);
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QTextStream &operator<<(qulonglong i);
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QTextStream &operator<<(float f);
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QTextStream &operator<<(double f);
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QTextStream &operator<<(const QString &s);
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QTextStream &operator<<(const QByteArray &array);
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QTextStream &operator<<(const char *c);
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QTextStream &operator<<(const void *ptr);
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#ifdef QT3_SUPPORT
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// not marked as QT3_SUPPORT to avoid double compiler warnings, as
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// they are used in the QT3_SUPPORT functions below.
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inline QT3_SUPPORT int flags() const { return flagsInternal(); }
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inline QT3_SUPPORT int flags(int f) { return flagsInternal(f); }
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inline QT3_SUPPORT int setf(int bits)
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{ int old = flagsInternal(); flagsInternal(flagsInternal() | bits); return old; }
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inline QT3_SUPPORT int setf(int bits, int mask)
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{ int old = flagsInternal(); flagsInternal(flagsInternal() | (bits & mask)); return old; }
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inline QT3_SUPPORT int unsetf(int bits)
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{ int old = flagsInternal(); flagsInternal(flagsInternal() & ~bits); return old; }
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inline QT3_SUPPORT int width(int w)
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{ int old = fieldWidth(); setFieldWidth(w); return old; }
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inline QT3_SUPPORT int fill(int f)
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{ QChar ch = padChar(); setPadChar(QChar(f)); return ch.unicode(); }
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inline QT3_SUPPORT int precision(int p)
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{ int old = realNumberPrecision(); setRealNumberPrecision(p); return old; }
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enum {
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skipws = 0x0001, // skip whitespace on input
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left = 0x0002, // left-adjust output
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right = 0x0004, // right-adjust output
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internal = 0x0008, // pad after sign
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bin = 0x0010, // binary format integer
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oct = 0x0020, // octal format integer
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dec = 0x0040, // decimal format integer
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hex = 0x0080, // hex format integer
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showbase = 0x0100, // show base indicator
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showpoint = 0x0200, // force decimal point (float)
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uppercase = 0x0400, // upper-case hex output
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showpos = 0x0800, // add '+' to positive integers
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scientific = 0x1000, // scientific float output
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fixed = 0x2000 // fixed float output
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};
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enum {
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basefield = bin | oct | dec | hex,
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adjustfield = left | right | internal,
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floatfield = scientific | fixed
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};
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#ifndef QT_NO_TEXTCODEC
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enum Encoding { Locale, Latin1, Unicode, UnicodeNetworkOrder,
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UnicodeReverse, RawUnicode, UnicodeUTF8 };
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QT3_SUPPORT void setEncoding(Encoding encoding);
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#endif
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inline QT3_SUPPORT QString read() { return readAll(); }
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inline QT3_SUPPORT void unsetDevice() { setDevice(0); }
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#endif
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private:
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#ifdef QT3_SUPPORT
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int flagsInternal() const;
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int flagsInternal(int flags);
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#endif
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Q_DISABLE_COPY(QTextStream)
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QScopedPointer<QTextStreamPrivate> d_ptr;
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};
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Q_DECLARE_OPERATORS_FOR_FLAGS(QTextStream::NumberFlags)
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/*****************************************************************************
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QTextStream manipulators
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*****************************************************************************/
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typedef QTextStream & (*QTextStreamFunction)(QTextStream &);// manipulator function
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typedef void (QTextStream::*QTSMFI)(int); // manipulator w/int argument
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typedef void (QTextStream::*QTSMFC)(QChar); // manipulator w/QChar argument
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class Q_CORE_EXPORT QTextStreamManipulator
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{
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public:
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QTextStreamManipulator(QTSMFI m, int a) { mf = m; mc = 0; arg = a; }
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QTextStreamManipulator(QTSMFC m, QChar c) { mf = 0; mc = m; ch = c; arg = -1; }
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void exec(QTextStream &s) { if (mf) { (s.*mf)(arg); } else { (s.*mc)(ch); } }
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private:
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QTSMFI mf; // QTextStream member function
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QTSMFC mc; // QTextStream member function
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int arg; // member function argument
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QChar ch;
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};
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inline QTextStream &operator>>(QTextStream &s, QTextStreamFunction f)
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{ return (*f)(s); }
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inline QTextStream &operator<<(QTextStream &s, QTextStreamFunction f)
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{ return (*f)(s); }
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inline QTextStream &operator<<(QTextStream &s, QTextStreamManipulator m)
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{ m.exec(s); return s; }
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Q_CORE_EXPORT QTextStream &bin(QTextStream &s);
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Q_CORE_EXPORT QTextStream &oct(QTextStream &s);
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Q_CORE_EXPORT QTextStream &dec(QTextStream &s);
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Q_CORE_EXPORT QTextStream &hex(QTextStream &s);
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Q_CORE_EXPORT QTextStream &showbase(QTextStream &s);
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Q_CORE_EXPORT QTextStream &forcesign(QTextStream &s);
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Q_CORE_EXPORT QTextStream &forcepoint(QTextStream &s);
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Q_CORE_EXPORT QTextStream &noshowbase(QTextStream &s);
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Q_CORE_EXPORT QTextStream &noforcesign(QTextStream &s);
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Q_CORE_EXPORT QTextStream &noforcepoint(QTextStream &s);
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Q_CORE_EXPORT QTextStream &uppercasebase(QTextStream &s);
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Q_CORE_EXPORT QTextStream &uppercasedigits(QTextStream &s);
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Q_CORE_EXPORT QTextStream &lowercasebase(QTextStream &s);
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Q_CORE_EXPORT QTextStream &lowercasedigits(QTextStream &s);
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Q_CORE_EXPORT QTextStream &fixed(QTextStream &s);
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Q_CORE_EXPORT QTextStream &scientific(QTextStream &s);
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Q_CORE_EXPORT QTextStream &left(QTextStream &s);
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Q_CORE_EXPORT QTextStream &right(QTextStream &s);
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Q_CORE_EXPORT QTextStream ¢er(QTextStream &s);
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Q_CORE_EXPORT QTextStream &endl(QTextStream &s);
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Q_CORE_EXPORT QTextStream &flush(QTextStream &s);
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Q_CORE_EXPORT QTextStream &reset(QTextStream &s);
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Q_CORE_EXPORT QTextStream &bom(QTextStream &s);
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Q_CORE_EXPORT QTextStream &ws(QTextStream &s);
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inline QTextStreamManipulator qSetFieldWidth(int width)
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{
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QTSMFI func = &QTextStream::setFieldWidth;
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return QTextStreamManipulator(func,width);
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}
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inline QTextStreamManipulator qSetPadChar(QChar ch)
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{
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QTSMFC func = &QTextStream::setPadChar;
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return QTextStreamManipulator(func, ch);
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}
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inline QTextStreamManipulator qSetRealNumberPrecision(int precision)
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{
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QTSMFI func = &QTextStream::setRealNumberPrecision;
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return QTextStreamManipulator(func, precision);
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}
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#ifdef QT3_SUPPORT
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typedef QTextStream QTS;
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class Q_CORE_EXPORT QTextIStream : public QTextStream
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{
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public:
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inline explicit QTextIStream(const QString *s) : QTextStream(const_cast<QString *>(s), QIODevice::ReadOnly) {}
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inline explicit QTextIStream(QByteArray *a) : QTextStream(a, QIODevice::ReadOnly) {}
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inline QTextIStream(FILE *f) : QTextStream(f, QIODevice::ReadOnly) {}
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private:
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Q_DISABLE_COPY(QTextIStream)
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};
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class Q_CORE_EXPORT QTextOStream : public QTextStream
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{
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public:
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inline explicit QTextOStream(QString *s) : QTextStream(s, QIODevice::WriteOnly) {}
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inline explicit QTextOStream(QByteArray *a) : QTextStream(a, QIODevice::WriteOnly) {}
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inline QTextOStream(FILE *f) : QTextStream(f, QIODevice::WriteOnly) {}
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private:
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Q_DISABLE_COPY(QTextOStream)
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};
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#endif
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QTEXTSTREAM_H
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