1 files changed, 84 insertions, 0 deletions
diff --git a/sources/pyside6/PySide6/qpydesignerextensions.h b/sources/pyside6/PySide6/qpydesignerextensions.h
new file mode 100644
index 000000000..871fa8284
--- /dev/null
+++ b/sources/pyside6/PySide6/qpydesignerextensions.h
@@ -0,0 +1,84 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QPYDESIGNEREXTENSIONS_H
+#define QPYDESIGNEREXTENSIONS_H
+
+#include <QtDesigner/QDesignerContainerExtension>
+#include <QtDesigner/QDesignerMemberSheetExtension>
+#include <QtDesigner/QDesignerPropertySheetExtension>
+#include <QtDesigner/QDesignerTaskMenuExtension>
+#include <QtUiPlugin/QDesignerCustomWidgetCollectionInterface>
+#include <QtUiPlugin/QDesignerCustomWidgetInterface>
+
+// Not automatically found since "find_package(Qt6 COMPONENTS Designer)" is not used
+
+#ifdef Q_MOC_RUN
+Q_DECLARE_INTERFACE(QDesignerContainerExtension, "org.qt-project.Qt.Designer.Container")
+Q_DECLARE_INTERFACE(QDesignerMemberSheetExtension, "org.qt-project.Qt.Designer.MemberSheet")
+Q_DECLARE_EXTENSION_INTERFACE(QDesignerPropertySheetExtension, "org.qt-project.Qt.Designer.PropertySheet")
+Q_DECLARE_INTERFACE(QDesignerTaskMenuExtension, "org.qt-project.Qt.Designer.TaskMenu")
+Q_DECLARE_INTERFACE(QDesignerCustomWidgetCollectionInterface, "org.qt-project.Qt.QDesignerCustomWidgetCollectionInterface")
+#endif
+
+struct _object; // PyObject
+
+QT_BEGIN_NAMESPACE
+
+// Extension implementations need to inherit QObject which cannot be done in Python.
+// Provide a base class (cf QPyTextObject).
+
+class QPyDesignerContainerExtension : public QObject, public QDesignerContainerExtension
+{
+    Q_OBJECT
+    Q_INTERFACES(QDesignerContainerExtension)
+public:
+    explicit QPyDesignerContainerExtension(QObject *parent = nullptr) : QObject(parent) {}
+};
+
+class QPyDesignerMemberSheetExtension : public QObject, public QDesignerMemberSheetExtension
+{
+    Q_OBJECT
+    Q_INTERFACES(QDesignerMemberSheetExtension)
+public:
+    explicit QPyDesignerMemberSheetExtension(QObject *parent = nullptr) : QObject(parent) {}
+};
+
+class QPyDesignerPropertySheetExtension : public QObject, public QDesignerPropertySheetExtension
+{
+    Q_OBJECT
+    Q_INTERFACES(QDesignerPropertySheetExtension)
+public:
+    explicit QPyDesignerPropertySheetExtension(QObject *parent = nullptr) : QObject(parent) {}
+};
+
+class QPyDesignerTaskMenuExtension : public QObject, public QDesignerTaskMenuExtension
+{
+    Q_OBJECT
+    Q_INTERFACES(QDesignerTaskMenuExtension)
+public:
+    explicit QPyDesignerTaskMenuExtension(QObject *parent = nullptr) : QObject(parent) {}
+};
+
+class QPyDesignerCustomWidgetCollection : public QDesignerCustomWidgetCollectionInterface
+{
+public:
+    ~QPyDesignerCustomWidgetCollection();
+
+    static QPyDesignerCustomWidgetCollection *instance();
+
+    QList<QDesignerCustomWidgetInterface *> customWidgets() const override;
+
+    static void addCustomWidget(QDesignerCustomWidgetInterface *c);
+
+    static bool _registerCustomWidgetHelper(_object *typeArg, _object *kwds);
+
+private:
+    QPyDesignerCustomWidgetCollection();
+
+    QList<QDesignerCustomWidgetInterface *> m_customWidgets;
+};
+
+QT_END_NAMESPACE
+
+#endif // QPYDESIGNEREXTENSIONS_H