WaypointParser.h

// SPDX-License-Identifier: LGPL-2.1-or-later
//
// SPDX-FileCopyrightText: 2010 Dennis Nienhüser <nienhueser@kde.org>
//
 
#ifndef MARBLE_WAYPOINTPARSER_H
#define MARBLE_WAYPOINTPARSER_H
 
#include "RoutingWaypoint.h"
#include "marble_export.h"
 
#include <QMap>
#include <QVariant>
#include <QStringList>
 
class QTextStream;
 
namespace Marble
{
 
class MARBLE_EXPORT WaypointParser
{
public:
    /** Fields which can be parsed */
    enum Field {
        Longitude,
        Latitude,
        JunctionType,
        RoadName,
        TotalSecondsRemaining,
        RoadType
    };
 
    /** Constructor */
    WaypointParser();
 
    /** Parses the given stream and returns the extracted waypoint list */
    RoutingWaypoints parse( QTextStream &stream ) const;
 
    /** Associate the zero-based field no index with the given semantic type */
    void setFieldIndex( Field field, int index );
 
    /** The line separator used in the stream passed to #parse. Default is "\n" */
    void setLineSeparator( const QString &separator );
 
    /** The field separator. Default is ',' */
    void setFieldSeparator( const QChar &separator );
 
    /** Associate the given string key with the given junction type */
    void addJunctionTypeMapping( const QString &key, RoutingWaypoint::JunctionType value );
 
private:
    template<class T>
    T readField( Field field, const QStringList &fields, const T &defaultValue = T() ) const {
        int index = m_fieldIndices[field];
        if ( index >= 0 && index < fields.size() ) {
            return QVariant( fields[index] ).value<T>();
        }
 
        return defaultValue;
    }
 
    QString m_lineSeparator;
 
    QChar m_fieldSeparator;
 
    QMap<Field, int> m_fieldIndices;
 
    QMap<QString, RoutingWaypoint::JunctionType> m_junctionTypeMapping;
 
    Q_DISABLE_COPY( WaypointParser )
};
 
} // namespace Marble
 
#endif // MARBLE_WAYPOINTPARSER_H