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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtNfc 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <qndefnfctextrecord.h>
#include <QtCore/QTextCodec>
#include <QtCore/QLocale>
QT_BEGIN_NAMESPACE
/*!
\class QNdefNfcTextRecord
\brief The QNdefNfcTextRecord class provides an NFC RTD-Text.
\ingroup connectivity-nfc
\inmodule QtNfc
\since 5.2
RTD-Text encapsulates a user displayable text record.
*/
/*!
\enum QNdefNfcTextRecord::Encoding
This enum describes the text encoding standard used.
\value Utf8 The text is encoded with UTF-8.
\value Utf16 The text is encoding with UTF-16.
*/
/*!
\fn QNdefNfcTextRecord::QNdefNfcTextRecord()
Constructs an empty NFC text record of type \l QNdefRecord::NfcRtd.
*/
/*!
\fn QNdefNfcTextRecord::QNdefNfcTextRecord(const QNdefRecord& other)
Constructs a new NFC text record that is a copy of \a other.
*/
/*!
Returns the locale of the text record.
*/
QString QNdefNfcTextRecord::locale() const
{
const QByteArray p = payload();
if (p.isEmpty())
return QString();
quint8 status = p.at(0);
quint8 codeLength = status & 0x3f;
return QString::fromLatin1(p.constData() + 1, codeLength);
}
/*!
Sets the locale of the text record to \a locale.
*/
void QNdefNfcTextRecord::setLocale(const QString &locale)
{
QByteArray p = payload();
quint8 status = p.isEmpty() ? 0 : p.at(0);
quint8 codeLength = status & 0x3f;
quint8 newStatus = (status & 0xd0) | locale.length();
p[0] = newStatus;
p.replace(1, codeLength, locale.toLatin1());
setPayload(p);
}
/*!
Returns the contents of the text record as a string.
*/
QString QNdefNfcTextRecord::text() const
{
const QByteArray p = payload();
if (p.isEmpty())
return QString();
#if QT_CONFIG(textcodec)
quint8 status = p.at(0);
bool utf16 = status & 0x80;
quint8 codeLength = status & 0x3f;
QTextCodec *codec = QTextCodec::codecForName(utf16 ? "UTF-16BE" : "UTF-8");
return codec ? codec->toUnicode(p.constData() + 1 + codeLength, p.length() - 1 - codeLength) : QString();
#else
qWarning("Cannot decode payload, Qt was built with -no-feature-textcodec!");
return QString();
#endif
}
/*!
Sets the contents of the text record to \a text.
*/
void QNdefNfcTextRecord::setText(const QString text)
{
#if QT_CONFIG(textcodec)
if (payload().isEmpty())
setLocale(QLocale().name());
QByteArray p = payload();
quint8 status = p.at(0);
bool utf16 = status & 0x80;
quint8 codeLength = status & 0x3f;
p.truncate(1 + codeLength);
QTextCodec *codec = QTextCodec::codecForName(utf16 ? "UTF-16BE" : "UTF-8");
p += codec->fromUnicode(text);
setPayload(p);
#else
qWarning("Cannot encode payload, Qt was built with -no-feature-textcodec!");
Q_UNUSED(text);
#endif
}
/*!
Returns the encoding of the contents.
*/
QNdefNfcTextRecord::Encoding QNdefNfcTextRecord::encoding() const
{
if (payload().isEmpty())
return Utf8;
QByteArray p = payload();
quint8 status = p.at(0);
bool utf16 = status & 0x80;
if (utf16)
return Utf16;
else
return Utf8;
}
/*!
Sets the enconding of the contents to \a encoding.
*/
void QNdefNfcTextRecord::setEncoding(Encoding encoding)
{
QByteArray p = payload();
quint8 status = p.isEmpty() ? 0 : p.at(0);
QString string = text();
if (encoding == Utf8)
status &= ~0x80;
else
status |= 0x80;
p[0] = status;
setPayload(p);
setText(string);
}
QT_END_NAMESPACE
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