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// This implements the helper for QObject.pyqtConfigure().
//
// Copyright (c) 2012 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.
//
// If you are unsure which license is appropriate for your use, please
// 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 <QByteArray>
#include <QMetaObject>
#include <QObject>
#include <QVariant>
#include "qpycore_chimera.h"
#include "qpycore_pyqtboundsignal.h"
// This is the helper for QObject.pyqtConfigure().
int qpycore_pyqtconfigure(PyObject *self, QObject *qobj, PyObject *kwds)
{
PyObject *name_obj, *value_obj;
SIP_SSIZE_T pos = 0;
const QMetaObject *mo = qobj->metaObject();
QByteArray unknown_name;
while (PyDict_Next(kwds, &pos, &name_obj, &value_obj))
{
// Get the name encoded name.
PyObject *enc_name_obj = name_obj;
const char *name = sipString_AsASCIIString(&enc_name_obj);
if (!name)
return -1;
QByteArray enc_name(name);
Py_DECREF(enc_name_obj);
// See if it is a property.
int idx = mo->indexOfProperty(enc_name.constData());
if (idx >= 0)
{
QMetaProperty prop = mo->property(idx);
// A negative type means a QVariant property.
if (prop.userType() >= 0)
{
const Chimera *ct = Chimera::parse(prop);
if (!ct)
{
PyErr_Format(PyExc_TypeError,
"'%s' keyword argument has an invalid type",
enc_name.constData());
return -1;
}
QVariant value;
bool valid = ct->fromPyObject(value_obj, &value);
delete ct;
if (!valid)
return -1;
qobj->setProperty(enc_name.constData(), value);
}
else
{
int value_state, iserr = 0;
QVariant *value = reinterpret_cast<QVariant *>(
sipForceConvertToType(value_obj, sipType_QVariant, 0,
SIP_NOT_NONE, &value_state, &iserr));
if (iserr)
return -1;
qobj->setProperty(enc_name.constData(), *value);
sipReleaseType(value, sipType_QVariant, value_state);
}
}
else
{
bool unknown = true;
// See if it is a signal.
PyObject *sig = PyObject_GetAttr(self, name_obj);
if (sig)
{
if (PyObject_IsInstance(sig, (PyObject *)&qpycore_pyqtBoundSignal_Type))
{
static PyObject *connect_obj = NULL;
if (!connect_obj)
{
#if PY_MAJOR_VERSION >= 3
connect_obj = PyUnicode_FromString("connect");
#else
connect_obj = PyString_FromString("connect");
#endif
if (!connect_obj)
{
Py_DECREF(sig);
return -1;
}
}
// Connect the slot.
PyObject *res = PyObject_CallMethodObjArgs(sig,
connect_obj, value_obj, 0);
if (!res)
{
Py_DECREF(sig);
return -1;
}
Py_DECREF(res);
unknown = false;
}
Py_DECREF(sig);
}
if (unknown)
// Remember there is an exception but carry on with the
// remaining names. This supports the use case where a name
// might not be valid in a particular context, but isn't a
// problem.
unknown_name = enc_name;
}
}
if (!unknown_name.isEmpty())
{
PyErr_Format(PyExc_AttributeError,
"'%s' is not a Qt property or a signal",
unknown_name.constData());
return -1;
}
return 0;
}
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