1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the Qt Designer of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:GPL-EXCEPT$ |
9 | ** Commercial License Usage |
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17 | ** GNU General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU |
19 | ** General Public License version 3 as published by the Free Software |
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24 | ** |
25 | ** $QT_END_LICENSE$ |
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27 | ****************************************************************************/ |
28 | |
29 | #include "default_layoutdecoration.h" |
30 | #include "qlayout_widget_p.h" |
31 | |
32 | #include <layoutinfo_p.h> |
33 | |
34 | #include <QtDesigner/abstractmetadatabase.h> |
35 | #include <QtDesigner/abstractformwindow.h> |
36 | #include <QtDesigner/abstractformeditor.h> |
37 | |
38 | QT_BEGIN_NAMESPACE |
39 | |
40 | namespace qdesigner_internal { |
41 | |
42 | // ---- QDesignerLayoutDecorationFactory ---- |
43 | QDesignerLayoutDecorationFactory::QDesignerLayoutDecorationFactory(QExtensionManager *parent) |
44 | : QExtensionFactory(parent) |
45 | { |
46 | } |
47 | |
48 | QObject *QDesignerLayoutDecorationFactory::createExtension(QObject *object, const QString &iid, QObject *parent) const |
49 | { |
50 | if (!object->isWidgetType() || iid != Q_TYPEID(QDesignerLayoutDecorationExtension)) |
51 | return nullptr; |
52 | |
53 | QWidget *widget = qobject_cast<QWidget*>(o: object); |
54 | |
55 | if (const QLayoutWidget *layoutWidget = qobject_cast<const QLayoutWidget*>(object: widget)) |
56 | return QLayoutSupport::createLayoutSupport(formWindow: layoutWidget->formWindow(), widget, parent); |
57 | |
58 | if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(w: widget)) |
59 | if (LayoutInfo::managedLayout(core: fw->core(), widget)) |
60 | return QLayoutSupport::createLayoutSupport(formWindow: fw, widget, parent); |
61 | |
62 | return nullptr; |
63 | } |
64 | } |
65 | |
66 | QT_END_NAMESPACE |
67 | |