1 files changed, 100 insertions, 0 deletions
diff --git a/sources/shiboken6/libshiboken/qapp_macro.cpp b/sources/shiboken6/libshiboken/qapp_macro.cpp
new file mode 100644
index 000000000..3ef3a51c6
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+++ b/sources/shiboken6/libshiboken/qapp_macro.cpp
@@ -0,0 +1,100 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt for Python.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 "basewrapper.h"
+#include "autodecref.h"
+
+extern "C"
+{
+
+#include "qapp_macro.h"
+
+////////////////////////////////////////////////////////////////////////////
+//
+// Support for the qApp macro.
+//
+// qApp is a macro in Qt5. In Python, we simulate that a little by a
+// variable that monitors Q*Application.instance().
+// This variable is also able to destroy the app by qApp.shutdown().
+//
+
+static PyObject *qApp_var = nullptr;
+static PyObject *qApp_content = nullptr;
+
+static PyObject *
+monitor_qApp_var(PyObject *qApp)
+{
+    static bool init_done;
+    static PyObject *builtins = PyEval_GetBuiltins();
+
+    if (!init_done) {
+        qApp_var = Py_BuildValue("s", "qApp");
+        if (qApp_var == nullptr)
+            return nullptr;
+        // This is a borrowed reference
+        Py_INCREF(builtins);
+        init_done = true;
+    }
+
+    if (PyDict_SetItem(builtins, qApp_var, qApp) < 0)
+        return nullptr;
+    qApp_content = qApp;
+    Py_INCREF(qApp);
+    return qApp;
+}
+
+PyObject *
+MakeQAppWrapper(PyTypeObject *type)
+{
+    if (type == nullptr)
+        type = Py_TYPE(Py_None);
+    if (!(type == Py_TYPE(Py_None) || Py_TYPE(qApp_content) == Py_TYPE(Py_None))) {
+        const char *res_name = PepType_GetNameStr(Py_TYPE(qApp_content));
+        const char *type_name = PepType_GetNameStr(type);
+        PyErr_Format(PyExc_RuntimeError, "Please destroy the %s singleton before"
+            " creating a new %s instance.", res_name, type_name);
+        return nullptr;
+    }
+    PyObject *self = type != Py_TYPE(Py_None) ? PyObject_New(PyObject, type) : Py_None;
+    return monitor_qApp_var(self);
+}
+
+} //extern "C"
+
+// end of module