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diff --git a/examples/widgets/tools/settingseditor/variantdelegate.h b/examples/widgets/tools/settingseditor/variantdelegate.h
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--- a/examples/widgets/tools/settingseditor/variantdelegate.h
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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 the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** 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 VARIANTDELEGATE_H
-#define VARIANTDELEGATE_H
-
-#include <QStyledItemDelegate>
-#include <QRegularExpression>
-#include <QSharedPointer>
-
-struct TypeChecker
-{
-    TypeChecker();
-
-    QRegularExpression boolExp;
-    QRegularExpression byteArrayExp;
-    QRegularExpression charExp;
-    QRegularExpression colorExp;
-    QRegularExpression dateExp;
-    QRegularExpression dateTimeExp;
-    QRegularExpression doubleExp;
-    QRegularExpression pointExp;
-    QRegularExpression rectExp;
-    QRegularExpression signedIntegerExp;
-    QRegularExpression sizeExp;
-    QRegularExpression timeExp;
-    QRegularExpression unsignedIntegerExp;
-};
-
-class VariantDelegate : public QStyledItemDelegate
-{
-    Q_OBJECT
-
-public:
-    explicit VariantDelegate(const QSharedPointer<TypeChecker> &typeChecker,
-                             QObject *parent = nullptr);
-
-    void paint(QPainter *painter, const QStyleOptionViewItem &option,
-               const QModelIndex &index) const override;
-    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option,
-                          const QModelIndex &index) const override;
-    void setEditorData(QWidget *editor, const QModelIndex &index) const override;
-    void setModelData(QWidget *editor, QAbstractItemModel *model,
-                      const QModelIndex &index) const override;
-
-    static bool isSupportedType(int type);
-    static QString displayText(const QVariant &value);
-
-private:
-    QSharedPointer<TypeChecker> m_typeChecker;
-};
-
-#endif