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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of PySide2.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// Borrowed reference to QtWidgets module
+extern PyObject* moduleQtWidgets;
+
+static int QApplicationArgCount;
+static char** QApplicationArgValues;
+static const char QAPP_MACRO[] = "qApp";
+
+bool QApplicationConstructorStart(PyObject* argv)
+{
+ if (QApplication::instance()) {
+ PyErr_SetString(PyExc_RuntimeError, "A QApplication instance already exists.");
+ return false;
+ }
+
+ return Shiboken::sequenceToArgcArgv(argv, &QApplicationArgCount, &QApplicationArgValues, "PySideApp");
+}
+
+void QApplicationConstructorEnd(PyObject* self)
+{
+ // Verify if qApp is in main module
+ PyObject* globalsDict = PyEval_GetGlobals();
+ if (globalsDict) {
+ PyObject* qAppObj = PyDict_GetItemString(globalsDict, QAPP_MACRO);
+ if (qAppObj)
+ PyDict_SetItemString(globalsDict, QAPP_MACRO, self);
+ }
+
+ PyObject_SetAttrString(moduleQtWidgets, QAPP_MACRO, self);
+ PySide::registerCleanupFunction(&PySide::destroyQCoreApplication);
+ Py_INCREF(self);
+}
+
+static void QApplicationConstructor(PyObject* self, PyObject* argv, QApplicationWrapper** cptr)
+{
+ if (QApplicationConstructorStart(argv)) {
+ // XXX do we need to support the ApplicationFlags parameter, instead of 0?
+ *cptr = new QApplicationWrapper(QApplicationArgCount, QApplicationArgValues, 0);
+ Shiboken::Object::releaseOwnership(reinterpret_cast<SbkObject*>(self));
+ QApplicationConstructorEnd(self);
+ }
+}