blame: src/exifreader.h

#pragma once

#include <QByteArray>

#include <QString>

#include <QList>

#include <QPair>

struct ExifData {

    QString captionAbstract;  // IPTC Caption-Abstract (Iptc.Application2.Caption)

    QString description;      // Exif.Image.ImageDescription

    QString dateTime;

    QString make;

    QString model;

    QString exposureTime;

    QString fNumber;

    QString iso;

    QString focalLength;

    QString flash;

    QString filename;

    QString dimensions;

    QString fileSize;

    bool isEmpty() const;

    QList<QPair<QString, QString>> toList() const;

};

namespace ExifReader {

ExifData read(const QByteArray &path);

// Write caption to IPTC Caption-Abstract.

// If oldData.captionAbstract == oldData.description they were in sync;

// in that case also update Exif.Image.ImageDescription to match.

// Returns true on success.

bool saveCaption(const QByteArray &path,

                 const QString    &caption,

                 const ExifData   &oldData);

// Rotate the image 90 degrees by updating the Exif.Image.Orientation tag only

// (lossless — pixel data is left untouched). clockwise=true rotates right.

// Returns true on success.

bool rotate(const QByteArray &path, bool clockwise);

} // namespace ExifReader