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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Copyright (C) 2016 Intel Corporation.
** 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_P_H
#define QTEXTSTREAM_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/private/qglobal_p.h>
#include "qtextstream.h"
#if QT_CONFIG(textcodec)
#include "qtextcodec.h"
#endif
QT_BEGIN_NAMESPACE
#ifndef QT_NO_QOBJECT
class QDeviceClosedNotifier : public QObject
{
Q_OBJECT
public:
inline QDeviceClosedNotifier()
{ }
inline void setupDevice(QTextStream *stream, QIODevice *device)
{
disconnect();
if (device)
connect(device, SIGNAL(aboutToClose()), this, SLOT(flushStream()));
this->stream = stream;
}
public Q_SLOTS:
inline void flushStream() { stream->flush(); }
private:
QTextStream *stream;
};
#endif
class QTextStreamPrivate
{
Q_DECLARE_PUBLIC(QTextStream)
public:
// streaming parameters
class Params
{
public:
void reset();
int realNumberPrecision;
int integerBase;
int fieldWidth;
QChar padChar;
QTextStream::FieldAlignment fieldAlignment;
QTextStream::RealNumberNotation realNumberNotation;
QTextStream::NumberFlags numberFlags;
};
QTextStreamPrivate(QTextStream *q_ptr);
~QTextStreamPrivate();
void reset();
// device
QIODevice *device;
#ifndef QT_NO_QOBJECT
QDeviceClosedNotifier deviceClosedNotifier;
#endif
// string
QString *string;
int stringOffset;
QIODevice::OpenMode stringOpenMode;
#if QT_CONFIG(textcodec)
// codec
QTextCodec *codec;
QTextCodec::ConverterState readConverterState;
QTextCodec::ConverterState writeConverterState;
QTextCodec::ConverterState *readConverterSavedState;
#endif
QString writeBuffer;
QString readBuffer;
int readBufferOffset;
int readConverterSavedStateOffset; //the offset between readBufferStartDevicePos and that start of the buffer
qint64 readBufferStartDevicePos;
Params params;
// status
QTextStream::Status status;
QLocale locale;
QTextStream *q_ptr;
int lastTokenSize;
bool deleteDevice;
#if QT_CONFIG(textcodec)
bool autoDetectUnicode;
#endif
// i/o
enum TokenDelimiter {
Space,
NotSpace,
EndOfLine
};
QString read(int maxlen);
bool scan(const QChar **ptr, int *tokenLength,
int maxlen, TokenDelimiter delimiter);
inline const QChar *readPtr() const;
inline void consumeLastToken();
inline void consume(int nchars);
void saveConverterState(qint64 newPos);
void restoreToSavedConverterState();
// Return value type for getNumber()
enum NumberParsingStatus {
npsOk,
npsMissingDigit,
npsInvalidPrefix
};
inline bool getChar(QChar *ch);
inline void ungetChar(QChar ch);
NumberParsingStatus getNumber(qulonglong *l);
bool getReal(double *f);
inline void write(const QString &data) { write(data.begin(), data.length()); }
inline void write(QChar ch);
void write(const QChar *data, int len);
void write(QLatin1String data);
void writePadding(int len);
inline void putString(const QString &ch, bool number = false) { putString(ch.constData(), ch.length(), number); }
void putString(const QChar *data, int len, bool number = false);
void putString(QLatin1String data, bool number = false);
inline void putChar(QChar ch);
void putNumber(qulonglong number, bool negative);
struct PaddingResult {
int left, right;
};
PaddingResult padding(int len) const;
// buffers
bool fillReadBuffer(qint64 maxBytes = -1);
void resetReadBuffer();
void flushWriteBuffer();
};
QT_END_NAMESPACE
#endif // QTEXTSTREAM_P_H
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