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// This is the support for QString.
//
// Copyright (c) 2010 Riverbank Computing Limited <info@riverbankcomputing.com>
//
// This file is part of PyQt.
//
// This file may be used under the terms of the GNU General Public
// License versions 2.0 or 3.0 as published by the Free Software
// Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
// included in the packaging of this file. Alternatively you may (at
// your option) use any later version of the GNU General Public
// License if such license has been publicly approved by Riverbank
// Computing Limited (or its successors, if any) and the KDE Free Qt
// Foundation. In addition, as a special exception, Riverbank gives you
// certain additional rights. These rights are described in the Riverbank
// GPL Exception version 1.1, which can be found in the file
// GPL_EXCEPTION.txt in this package.
//
// Please review the following information to ensure GNU General
// Public Licensing requirements will be met:
// http://trolltech.com/products/qt/licenses/licensing/opensource/. If
// you are unsure which license is appropriate for your use, please
// review the following information:
// http://trolltech.com/products/qt/licenses/licensing/licensingoverview
// or contact the sales department at sales@riverbankcomputing.com.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#include <Python.h>
#include <string.h>
#include <QString>
#include <QTextCodec>
#include <QVector>
#include "qpycore_sip.h"
// Convert a QString to a Python Unicode object.
PyObject *qpycore_PyObject_FromQString(const QString &qstr)
{
PyObject *obj;
#if defined(Py_UNICODE_WIDE)
#if QT_VERSION >= 0x040200
QVector<uint> ucs4 = qstr.toUcs4();
if ((obj = PyUnicode_FromUnicode(NULL, ucs4.size())) == NULL)
return NULL;
memcpy(PyUnicode_AS_UNICODE(obj), ucs4.constData(),
ucs4.size() * sizeof (Py_UNICODE));
#else
// Note that this code doesn't handle code points greater than 0xffff very
// well.
if ((obj = PyUnicode_FromUnicode(NULL, qstr.length())) == NULL)
return NULL;
Py_UNICODE *pyu = PyUnicode_AS_UNICODE(obj);
for (int i = 0; i < qstr.length(); ++i)
*pyu++ = (qstr.at(i)).unicode();
#endif
#else
if ((obj = PyUnicode_FromUnicode(NULL, qstr.length())) == NULL)
return NULL;
memcpy(PyUnicode_AS_UNICODE(obj), qstr.utf16(),
qstr.length() * sizeof (Py_UNICODE));
#endif
return obj;
}
// Convert a Python Unicode object to a QString.
QString qpycore_PyObject_AsQString(PyObject *obj)
{
#if defined(Py_UNICODE_WIDE)
#if QT_VERSION >= 0x040200
return QString::fromUcs4((const uint *)PyUnicode_AS_UNICODE(obj),
PyUnicode_GET_SIZE(obj));
#else
// Note that this code doesn't handle code points greater than 0xffff very
// well.
QString qstr;
Py_UNICODE *ucode = PyUnicode_AS_UNICODE(obj);
SIP_SSIZE_T len = PyUnicode_GET_SIZE(obj);
for (SIP_SSIZE_T i = 0; i < len; ++i)
qstr.append((uint)ucode[i]);
return qstr;
#endif
#else
return QString::fromUtf16((const ushort *)PyUnicode_AS_UNICODE(obj),
PyUnicode_GET_SIZE(obj));
#endif
}
// Convert a Python unicode/string/bytes object to a character string encoded
// according to the given encoding. Update the object with a new reference to
// the object that owns the data.
const char *qpycore_encode(PyObject **s, QCoreApplication::Encoding encoding)
{
PyObject *obj = *s;
const char *es = 0;
SIP_SSIZE_T sz;
if (PyUnicode_Check(obj))
{
if (encoding == QCoreApplication::UnicodeUTF8)
{
obj = PyUnicode_AsUTF8String(obj);
}
else
{
QTextCodec *codec = QTextCodec::codecForTr();
if (codec)
{
// Use the Qt codec to get to a byte string, and then to a
// Python object.
QString qs = qpycore_PyObject_AsQString(obj);
QByteArray ba = codec->fromUnicode(qs);
#if PY_MAJOR_VERSION >= 3
obj = PyBytes_FromStringAndSize(ba.constData(), ba.size());
#else
obj = PyString_FromStringAndSize(ba.constData(), ba.size());
#endif
}
else
{
obj = PyUnicode_AsLatin1String(obj);
}
}
if (obj)
{
#if PY_MAJOR_VERSION >= 3
es = PyBytes_AS_STRING(obj);
#else
es = PyString_AS_STRING(obj);
#endif
}
}
#if PY_MAJOR_VERSION >= 3
else if (PyBytes_Check(obj))
{
es = PyBytes_AS_STRING(obj);
Py_INCREF(obj);
}
#else
else if (PyString_Check(obj))
{
es = PyString_AS_STRING(obj);
Py_INCREF(obj);
}
#endif
else if (PyObject_AsCharBuffer(obj, &es, &sz) >= 0)
{
Py_INCREF(obj);
}
if (es)
{
*s = obj;
}
else
{
PyErr_Format(PyExc_UnicodeEncodeError,
"unable to convert '%s' to requested encoding",
Py_TYPE(*s)->tp_name);
}
return es;
}
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