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+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt OPC UA module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef TREEITEM_H
+#define TREEITEM_H
+
+#include <QObject>
+#include <QOpcUaNode>
+#include <memory>
+
+QT_BEGIN_NAMESPACE
+
+class OpcUaModel;
+
+class TreeItem : public QObject
+{
+ Q_OBJECT
+public:
+ explicit TreeItem(OpcUaModel *model);
+ TreeItem(QOpcUaNode *node, OpcUaModel *model, TreeItem *parent);
+ TreeItem(QOpcUaNode *node, OpcUaModel *model, const QOpcUaReferenceDescription &browsingData, TreeItem *parent);
+ ~TreeItem();
+ TreeItem *child(int row);
+ int childIndex(const TreeItem *child) const;
+ int childCount();
+ int columnCount() const;
+ QVariant data(int column);
+ int row() const;
+ TreeItem *parentItem();
+ void appendChild(TreeItem *child);
+ QPixmap icon(int column) const;
+
+private slots:
+ void startBrowsing();
+ void handleAttributes(QOpcUa::NodeAttributes attr);
+ void browseFinished(QVector<QOpcUaReferenceDescription> children, QOpcUa::UaStatusCode statusCode);
+
+protected:
+ std::unique_ptr<QOpcUaNode> mOpcNode;
+ OpcUaModel *mModel = nullptr;
+
+private:
+ bool mAttributesReady = false;
+ bool mBrowseStarted = false;
+ QList<TreeItem *> mChildItems;
+ TreeItem *mParentItem = nullptr;
+
+private:
+ QString mNodeBrowseName;
+ QString mNodeId;
+ QString mNodeDisplayName;
+ QOpcUa::NodeClass mNodeClass = QOpcUa::NodeClass::Undefined;
+};
+
+QT_END_NAMESPACE
+
+#endif // TREEITEM_H