diagramcontext.h

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/*
    Copyright 2006-2019 The QElectroTech Team
    This file is part of QElectroTech.
    
    QElectroTech is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 2 of the License, or
    (at your option) any later version.
    
    QElectroTech is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    
    You should have received a copy of the GNU General Public License
    along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DIAGRAM_CONTEXT_H
#define DIAGRAM_CONTEXT_H
#include <QDomElement>
#include <QHash>
#include <QSettings>
#include <QString>
#include <QVariant>
#include <QStringList>
class DiagramContext
{
    public:
        enum KeyOrder {
            None,
            Alphabetical,
            DecreasingLength
        };
    
        void add(DiagramContext other);
        QList<QString> keys(KeyOrder = None) const;
        bool contains(const QString &) const;
        const QVariant operator[](const QString &) const;
        bool addValue(const QString &, const QVariant &, bool show = true);
        QVariant value(const QString &key) const;
        void clear();
        int count();
        bool keyMustShow (const QString &) const;
        
        bool operator==(const DiagramContext &) const;
        bool operator!=(const DiagramContext &) const;
        
        void toXml(QDomElement &, const QString & = "property") const;
        void fromXml(const QDomElement &, const QString & = "property");
        void toSettings(QSettings &, const QString &) const;
        void fromSettings(QSettings &, const QString &);
        
        static QString validKeyRegExp();
    
    private:
        static bool stringLongerThan(const QString &, const QString &);
        bool keyIsAcceptable(const QString &) const;
        QHash<QString, QVariant> m_content;
        QHash<QString, bool> m_content_show;
};
#endif