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sdrangel/sdrbase/util/solardynamicsobservatory.h
2024-07-10 23:06:38 +02:00

96 lines
3.5 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2024 Jon Beniston, M7RCE //
// //
// 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_SOLARDYNAMICSOBSERVATORY_H
#define INCLUDE_SOLARDYNAMICSOBSERVATORY_H
#include <QtCore>
#include <QTimer>
#include <QImage>
#include <QCache>
#include "export.h"
class QNetworkAccessManager;
class QNetworkReply;
class QNetworkDiskCache;
// This gets solar imagery from SDO (Solar Dynamics Observatory) - https://sdo.gsfc.nasa.gov/
// and LASCO images from SOHO - https://soho.nascom.nasa.gov/
class SDRBASE_API SolarDynamicsObservatory : public QObject
{
Q_OBJECT
protected:
SolarDynamicsObservatory();
public:
static SolarDynamicsObservatory* create();
~SolarDynamicsObservatory();
void getImagePeriodically(const QString& image, int size=512, int periodInMins=15);
void getImage(const QString& m_image, int size);
void getImage(const QString& m_image, QDateTime dateTime, int size=512);
static QString getImageURL(const QString& image, int size);
static QString getVideoURL(const QString& video, int size=512);
static QList<int> getImageSizes();
static const QStringList getChannelNames();
static const QStringList getImageNames();
static QList<int> getVideoSizes();
static const QStringList getVideoNames();
private slots:
void getImage();
void handleReply(QNetworkReply* reply);
signals:
void imageUpdated(const QImage& image); // Called when new image is available.
private:
struct Request {
QString m_url;
QDateTime m_dateTime;
int m_size;
QString m_image;
};
QTimer m_dataTimer; // Timer for periodic updates
QString m_image; // Saved parameters for periodic updates
int m_size;
QNetworkAccessManager *m_networkManager;
QNetworkDiskCache *m_cache;
// Index page isn't cacheable (using network cache), so we cache it ourselves, as it can take up to 5 seconds to fetch
QCache<QDate, QByteArray> m_indexCache;
QDateTime m_todayCacheDateTime;
QByteArray *m_todayCache;
QList<Request> m_requests;
void handleJpeg(const QByteArray& bytes);
void handleIndex(QByteArray *bytes, const Request& request);
static const QStringList getImageFileNames();
static const QStringList getVideoFileNames();
};
#endif /* INCLUDE_SOLARDYNAMICSOBSERVATORY_H */