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diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/mainwindow.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/qtreeview-dnd/mainwindow.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the examples of Qt for Python.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** 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.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of The Qt Company Ltd nor the names of its
-** contributors may be used to endorse or promote products derived
-** from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <QtWidgets>
-
-#include "mainwindow.h"
-#include "dragdropmodel.h"
-
-MainWindow::MainWindow()
-{
- QMenu *fileMenu = new QMenu(tr("&File"));
-
- QAction *quitAction = fileMenu->addAction(tr("E&xit"));
- quitAction->setShortcut(tr("Ctrl+Q"));
-
- menuBar()->addMenu(fileMenu);
-
-// For convenient quoting:
- QTreeView *treeView = new QTreeView(this);
- treeView->setSelectionMode(QAbstractItemView::ExtendedSelection);
- treeView->setDragEnabled(true);
- treeView->setAcceptDrops(true);
- treeView->setDropIndicatorShown(true);
-
- this->treeView = treeView;
-
- connect(quitAction, SIGNAL(triggered()), this, SLOT(close()));
-
- setupItems();
-
- setCentralWidget(treeView);
- setWindowTitle(tr("Tree View"));
-}
-
-void MainWindow::setupItems()
-{
- QStringList items;
- items << tr("Widgets\tUser interface objects used to create GUI applications.")
- << tr(" QWidget\tThe basic building block for all other widgets.")
- << tr(" QDialog\tThe base class for dialog windows.")
- << tr("Tools\tUtilities and applications for Qt developers.")
- << tr(" Qt Designer\tA GUI form designer for Qt applications.")
- << tr(" Qt Assistant\tA documentation browser for Qt documentation.");
-
- DragDropModel *model = new DragDropModel(items, this);
- QModelIndex index = model->index(0, 0, QModelIndex());
- model->insertRows(2, 3, index);
- index = model->index(0, 0, QModelIndex());
- index = model->index(2, 0, index);
- model->setData(index, QVariant("QFrame"));
- model->removeRows(3, 2, index.parent());
- treeView->setModel(model);
-}