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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 PySide2.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+ model.cpp
+
+ A simple model that uses a QStringList as its data source.
+*/
+
+#include <QtWidgets>
+
+#include "model.h"
+
+DragDropListModel::DragDropListModel(const QStringList &strings,
+ QObject *parent)
+ : QStringListModel(strings, parent)
+{
+}
+
+//! [0]
+bool DragDropListModel::dropMimeData(const QMimeData *data,
+ Qt::DropAction action, int row, int column, const QModelIndex &parent)
+{
+ if (action == Qt::IgnoreAction)
+ return true;
+
+ if (!data->hasFormat("application/vnd.text.list"))
+ return false;
+
+ if (column > 0)
+//! [0] //! [1]
+ return false;
+//! [1]
+
+//! [2]
+ int beginRow;
+
+ if (row != -1)
+ beginRow = row;
+//! [2] //! [3]
+ else if (parent.isValid())
+ beginRow = parent.row();
+//! [3] //! [4]
+ else
+ beginRow = rowCount(QModelIndex());
+//! [4]
+
+//! [5]
+ QByteArray encodedData = data->data("application/vnd.text.list");
+ QDataStream stream(&encodedData, QIODevice::ReadOnly);
+ QStringList newItems;
+ int rows = 0;
+
+ while (!stream.atEnd()) {
+ QString text;
+ stream >> text;
+ newItems << text;
+ ++rows;
+ }
+//! [5]
+
+//! [6]
+ insertRows(beginRow, rows, QModelIndex());
+ foreach (QString text, newItems) {
+ QModelIndex idx = index(beginRow, 0, QModelIndex());
+ setData(idx, text);
+ beginRow++;
+ }
+
+ return true;
+}
+//! [6]
+
+//! [7]
+Qt::ItemFlags DragDropListModel::flags(const QModelIndex &index) const
+{
+ Qt::ItemFlags defaultFlags = QStringListModel::flags(index);
+
+ if (index.isValid())
+ return Qt::ItemIsDragEnabled | Qt::ItemIsDropEnabled | defaultFlags;
+ else
+ return Qt::ItemIsDropEnabled | defaultFlags;
+}
+//! [7]
+
+//! [8]
+def mimeData(self, indexes):
+ mimeData = QMimeData()
+ encodedData = QByteArray()
+ stream = QDataStream(encodedData, QIODevice.WriteOnly)
+
+ for index in indexes:
+ if index.isValid():
+ stream << data(index, Qt.DisplayRole)
+
+ mimeData.setData("application/vnd.text.list", encodedData)
+ return mimeData;
+//! [8]
+
+//! [9]
+QStringList DragDropListModel::mimeTypes() const
+{
+ QStringList types;
+ types << "application/vnd.text.list";
+ return types;
+}
+//! [9]
+
+//! [10]
+Qt::DropActions DragDropListModel::supportedDropActions() const
+{
+ return Qt::CopyAction | Qt::MoveAction;
+}
+//! [10]