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sdrangel/sdrbase/util/nasaglobalimagery.h

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2024 Jon Beniston, M7RCE <jon@beniston.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 as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program 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 V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDE_NASAGLOBALIMAGERY_H
#define INCLUDE_NASAGLOBALIMAGERY_H
#include <QtCore>
#include <QTimer>
#include "export.h"
class QNetworkAccessManager;
class QNetworkReply;
class QNetworkDiskCache;
// NASA GIBS (Global Imagery Browse Server) API (https://nasa-gibs.github.io/gibs-api-docs/)
// Gets details of available data sets for use on maps
// Also supports cached download of .svg legends
class SDRBASE_API NASAGlobalImagery : public QObject
{
Q_OBJECT
public:
struct Legend {
QString m_url; // Typically to .svg file
int m_width;
int m_height;
};
struct DataSet {
QString m_identifier;
QList<Legend> m_legends;
QString m_tileMatrixSet;
QString m_format;
QString m_defaultDateTime;
QStringList m_dates;
};
struct Layer {
QString m_identifier;
QString m_title;
QString m_subtitle;
QString m_descriptionURL;
QDateTime m_startDate;
QDateTime m_endDate;
bool m_ongoing;
QString m_layerPeriod;
QString m_layerGroup;
};
struct MetaData {
QHash<QString, Layer> m_layers;
};
NASAGlobalImagery();
~NASAGlobalImagery();
void getData();
void getMetaData();
void downloadLegend(const Legend& legend);
void downloadHTML(const QString& url);
public slots:
void handleReply(QNetworkReply* reply);
signals:
void dataUpdated(const QList<DataSet>& dataSets); // Emitted when paths to new data are available.
void metaDataUpdated(const MetaData& metaData);
void legendAvailable(const QString& url, const QByteArray data);
void htmlAvailable(const QString& url, const QByteArray data);
private:
QNetworkAccessManager *m_networkManager;
QNetworkDiskCache *m_cache;
void handleXML(const QByteArray& bytes);
void handleSVG(const QString& url, const QByteArray& bytes);
void handleJSON(const QByteArray& bytes);
void handleHTML(const QString& url, const QByteArray& bytes);
};
#endif /* INCLUDE_NASAGLOBALIMAGERY_H */