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// This implements the public API provided by PyQt to external packages.
//
// Copyright (c) 2016 Riverbank Computing Limited <info@riverbankcomputing.com>
//
// This file is part of PyQt4.
//
// This file may be used under the terms of the GNU General Public License
// version 3.0 as published by the Free Software Foundation and appearing in
// the file LICENSE included in the packaging of this file. Please review the
// following information to ensure the GNU General Public License version 3.0
// requirements will be met: http://www.gnu.org/copyleft/gpl.html.
//
// If you do not wish to use this file under the terms of the GPL version 3.0
// then you may purchase a commercial license. For more information contact
// info@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 <QHash>
#include "qpycore_chimera.h"
#include "qpycore_public_api.h"
#include "qpycore_pyqtboundsignal.h"
// Convert a Python argv list to a conventional C argc count and argv array.
char **pyqt4_from_argv_list(PyObject *argv_list, int &argc)
{
argc = PyList_GET_SIZE(argv_list);
// Allocate space for two copies of the argument pointers, plus the
// terminating NULL.
char **argv = new char *[2 * (argc + 1)];
// Convert the list.
for (int a = 0; a < argc; ++a)
{
PyObject *arg_obj = PyList_GET_ITEM(argv_list, a);
char *arg;
if (PyUnicode_Check(arg_obj))
{
QByteArray ba_arg = qpycore_PyObject_AsQString(arg_obj).toLocal8Bit();
arg = qstrdup(ba_arg.constData());
}
else if (SIPBytes_Check(arg_obj))
{
arg = qstrdup(SIPBytes_AS_STRING(arg_obj));
}
else
{
arg = const_cast<char *>("invalid");
}
argv[a] = argv[a + argc + 1] = arg;
}
argv[argc + argc + 1] = argv[argc] = NULL;
return argv;
}
// Get the receiver object and slot signature for a connection.
sipErrorState pyqt4_get_connection_parts(PyObject *slot, QObject *transmitter,
const char *signal_signature, bool single_shot, QObject **receiver,
QByteArray &slot_signature)
{
static QHash<QByteArray, const Chimera::Signature *> cache;
QByteArray key(signal_signature);
const Chimera::Signature *parsed_signal_signature = cache.value(key);
if (!parsed_signal_signature)
{
parsed_signal_signature = Chimera::parse(key, "a signal argument");
if (!parsed_signal_signature)
return sipErrorFail;
cache.insert(key, parsed_signal_signature);
}
return qpycore_get_receiver_slot_signature(slot, transmitter,
parsed_signal_signature, single_shot, receiver, slot_signature);
}
// Remove arguments from the Python argv list that have been removed from the
// C argv array.
void pyqt4_update_argv_list(PyObject *argv_list, int argc, char **argv)
{
for (int a = 0, na = 0; a < argc; ++a)
{
// See if it was removed.
if (argv[na] == argv[a + argc + 1])
++na;
else
PyList_SetSlice(argv_list, na, na + 1, 0);
}
}
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