settings_item_dropdown.h

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// MIT License
// 
// Copyright (c) 2019 Ruhr University Bochum, Chair for Embedded Security. All Rights reserved.
// Copyright (c) 2019 Marc Fyrbiak, Sebastian Wallat, Max Hoffmann ("ORIGINAL AUTHORS"). All rights reserved.
// Copyright (c) 2021 Max Planck Institute for Security and Privacy. All Rights reserved.
// Copyright (c) 2021 Jörn Langheinrich, Julian Speith, Nils Albartus, René Walendy, Simon Klix ("ORIGINAL AUTHORS"). All Rights reserved.
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
 
#pragma once
 
#include "gui/settings/settings_items/settings_item.h"
 
#include <QStringList>
#include <QMetaEnum>
 
namespace hal
{
    class SettingsItemDropdown : public SettingsItem
    {
        Q_OBJECT
 
    public:
 
        SettingsItemDropdown(const QString& label, const QString& tag, int defVal, const QString& cat = QString(), const QString& desc = QString(), bool isGlobal = true);
 
        virtual QVariant value() const override;
        virtual QVariant defaultValue() const override;
        virtual void setValue(const QVariant& v) override;
        virtual void setDefaultValue(const QVariant& dv) override;
        virtual SettingsWidget* editWidget(QWidget* parent = nullptr) override;
 
        virtual QVariant persistToSettings() const override;
        virtual void restoreFromSettings(const QVariant& val) override;
 
        const QStringList& valueNames() const
        {
            return mValueNames;
        }
 
        template <typename T> void setValueNames()
        {
            mValueNames.clear();
 
            QMetaEnum metaEnum = QMetaEnum::fromType<T>();
 
            for(int i = 0; i < metaEnum.keyCount(); i++)
                mValueNames.append(metaEnum.key(i));
 
            reloadSettings();
        }
 
    Q_SIGNALS:
 
        void intChanged(int value);
 
    private:
        int mValue;
        int mDefaultValue;
        QStringList mValueNames;
 
        int valueFromString(const QString& s) const;
        void reloadSettings();
    };
}