/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Assistant of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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** 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
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#ifndef OPTIONSWIDGET_H
#define OPTIONSWIDGET_H

#include <QtWidgets/QWidget>
#include <QtCore/QMap>

QT_BEGIN_NAMESPACE

class QListWidget;
class QListWidgetItem;

class OptionsWidget : public QWidget
{
    Q_OBJECT
public:
    OptionsWidget(QWidget *parent = nullptr);

    void clear();
    void setOptions(const QStringList &validOptions,
                    const QStringList &selectedOptions);
    QStringList validOptions() const;
    QStringList selectedOptions() const;

    void setNoOptionText(const QString &text);
    void setInvalidOptionText(const QString &text);

signals:
    void optionSelectionChanged(const QStringList &options);

private:
    QString optionText(const QString &optionName, bool valid) const;
    QListWidgetItem *appendItem(const QString &optionName, bool valid, bool selected);
    void appendSeparator();
    void itemChanged(QListWidgetItem *item);

    QListWidget *m_listWidget = nullptr;
    QString m_noOptionText;
    QString m_invalidOptionText;
    QStringList m_validOptions;
    QStringList m_invalidOptions;
    QStringList m_selectedOptions;
    QMap<QString, QListWidgetItem *> m_optionToItem;
    QMap<QListWidgetItem *, QString> m_itemToOption;
};

QT_END_NAMESPACE

#endif  // OPTIONSWIDGET_H
