qgsexiftools.h

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/***************************************************************************
  qgisexiftools.h
  ---------------
  Date                 : November 2018
  Copyright            : (C) 2018 by Nyall Dawson
  Email                : nyall dot dawson at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   This program 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.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSEXIFTOOLS_H
#define QGSEXIFTOOLS_H
 
#include "qgis_core.h"
#include "qgspointxy.h"
 
#include <QObject>
#include <QString>
#include <QVariant>
#include <QVariantMap>

class CORE_EXPORT QgsExifTools
{
    Q_GADGET
 
  public:

    static QVariantMap readTags( const QString &imagePath );

    static QVariant readTag( const QString &imagePath, const QString &key );

    static QgsPoint getGeoTag( const QString &imagePath, bool &ok SIP_OUT );

    Q_INVOKABLE static bool hasGeoTag( const QString &imagePath );

    class GeoTagDetails
    {
      public:
 
        GeoTagDetails()
          : elevation( std::numeric_limits< double >::quiet_NaN() )
        {
        }

        double elevation = 0;
    };

    static bool geoTagImage( const QString &imagePath, const QgsPointXY &location, const GeoTagDetails &details = QgsExifTools::GeoTagDetails() );

    static bool tagImage( const QString &imagePath, const QString &tag, const QVariant &value );
 
};
 
#endif // QGSEXIFTOOLS_H