text: /****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the Qt Designer of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:GPL-EXCEPT$
  ** 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 General Public License Usage
  ** Alternatively, this file may be used under the terms of the GNU
  ** General Public License version 3 as published by the Free Software
  ** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
  ** 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-3.0.html.
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/
  
  #ifndef LAYOUT_PROPERTYSHEET_H
  #define LAYOUT_PROPERTYSHEET_H
  
  #include <qdesigner_propertysheet_p.h>
  #include <extensionfactory_p.h>
  
  #include <QtWidgets/QLayout>
  
  QT_BEGIN_NAMESPACE
  
  class QDesignerFormEditorInterface;
  class DomLayout;
  
  namespace qdesigner_internal {
  
  class LayoutPropertySheet: public QDesignerPropertySheet
  {
      Q_OBJECT
      Q_INTERFACES(QDesignerPropertySheetExtension)
  public:
      explicit LayoutPropertySheet(QLayout *object, QObject *parent = 0);
      virtual ~LayoutPropertySheet();
  
      void setProperty(int index, const QVariant &value) Q_DECL_OVERRIDE;
      QVariant property(int index) const Q_DECL_OVERRIDE;
      bool reset(int index) Q_DECL_OVERRIDE;
      void setChanged(int index, bool changed) Q_DECL_OVERRIDE;
  
      static void stretchAttributesToDom(QDesignerFormEditorInterface *core, QLayout *lt, DomLayout *domLayout);
      static void markChangedStretchProperties(QDesignerFormEditorInterface *core, QLayout *lt, const DomLayout *domLayout);
  
  private:
      QLayout *m_layout;
  };
  
  typedef QDesignerPropertySheetFactory<QLayout, LayoutPropertySheet>  LayoutPropertySheetFactory;
  }  // namespace qdesigner_internal
  
  QT_END_NAMESPACE
  
  #endif // LAYOUT_PROPERTYSHEET_H
  