File indexing completed on 2024-04-28 15:39:55

 // SPDX-FileCopyrightText: 2003-2010 Jesper K. Pedersen <blackie@kde.org>
 // SPDX-FileCopyrightText: 2021-2023 Johannes Zarl-Zierl <johannes@zarl-zierl.at>
 // SPDX-FileCopyrightText: 2023 Tobias Leupold <tl at stonemx dot de>
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "FileInfo.h"
 
 #include <kpabase/FileExtensions.h>
 #include <kpabase/SettingsData.h>
 #include <kpaexif/Info.h>
 
 #include <Utilities/FastDateTime.h>
 #include <QFileInfo>
 #include <QRegularExpression>
 
 #include <exiv2/version.hpp>
 
 using namespace DB;
 
 FileInfo FileInfo::read(const DB::FileName &fileName, DB::ExifMode mode)
 {
     return FileInfo(fileName, mode);
 }
 
 DB::FileInfo::FileInfo(const DB::FileName &fileName, DB::ExifMode mode)
     : m_angle(0)
     , m_fileName(fileName)
 {
     parseEXIV2(fileName);
 
     if (updateDataFromFileTimeStamp(fileName, mode))
         m_date = QFileInfo(fileName.absolute()).lastModified();
 }
 
 Exiv2::ExifData &DB::FileInfo::getExifData()
 {
     return m_exifMap;
 }
 
 const DB::FileName &DB::FileInfo::getFileName() const
 {
     return m_fileName;
 }
 
 bool DB::FileInfo::updateDataFromFileTimeStamp(const DB::FileName &fileName, DB::ExifMode mode)
 {
     // If the date is valid from Exif reading, then we should not use the time stamp from the file.
     if (m_date.isValid())
         return false;
 
     // If we are not setting date, then we should of course not set the date
     if ((mode & EXIFMODE_DATE) == 0)
         return false;
 
     // If we are we already have specifies that we want to sent the date (from the ReReadExif dialog), then we of course should.
     if ((mode & EXIFMODE_USE_IMAGE_DATE_IF_INVALID_EXIF_DATE) != 0)
         return true;
 
     // Always trust for videos (this is a way to say that we should not trust for scaned in images - which makes no sense for videos)
     if (KPABase::isVideo(fileName))
         return true;
 
     // Finally use the info from the settings dialog
     return Settings::SettingsData::instance()->trustTimeStamps();
 }
 
 void DB::FileInfo::parseEXIV2(const DB::FileName &fileName)
 {
     m_exifMap = Exif::Info::instance()->metadata(fileName).exif;
 
     // Date
     m_date = fetchEXIV2Date(m_exifMap, "Exif.Photo.DateTimeOriginal");
     if (!m_date.isValid()) {
         m_date = fetchEXIV2Date(m_exifMap, "Exif.Photo.DateTimeDigitized");
         if (!m_date.isValid())
             m_date = fetchEXIV2Date(m_exifMap, "Exif.Image.DateTime");
     }
 
     // Angle
     if (m_exifMap.findKey(Exiv2::ExifKey("Exif.Image.Orientation")) != m_exifMap.end()) {
         const Exiv2::Exifdatum &datum = m_exifMap["Exif.Image.Orientation"];
 
         int orientation = 0;
         if (datum.count() > 0) {
 #if EXIV2_TEST_VERSION(0, 28, 0)
             orientation = datum.toInt64();
 #else
             orientation = datum.toLong();
 #endif
         }
 
         m_angle = orientationToAngle(orientation);
     }
 
     // Description
     if (m_exifMap.findKey(Exiv2::ExifKey("Exif.Image.ImageDescription")) != m_exifMap.end()) {
         const Exiv2::Exifdatum &datum = m_exifMap["Exif.Image.ImageDescription"];
         m_description = QString::fromLocal8Bit(datum.toString().c_str()).trimmed();
         // some cameras seem to add control characters. Remove them:
         m_description.remove(QRegularExpression(QString::fromLatin1("\\p{Cc}")));
     }
 }
 
 Utilities::FastDateTime FileInfo::fetchEXIV2Date(Exiv2::ExifData &map, const char *key)
 {
     try {
         if (map.findKey(Exiv2::ExifKey(key)) != map.end()) {
             const Exiv2::Exifdatum &datum = map[key];
             return Utilities::FastDateTime::fromString(QString::fromLatin1(datum.toString().c_str()), Qt::ISODate);
         }
     } catch (...) {
     }
 
     return Utilities::FastDateTime();
 }
 
 int DB::FileInfo::orientationToAngle(int orientation)
 {
     if (orientation == 1 || orientation == 2)
         return 0;
     else if (orientation == 3 || orientation == 4)
         return 180;
     else if (orientation == 5 || orientation == 8)
         return 270;
     else if (orientation == 6 || orientation == 7)
         return 90;
 
     return 0;
 }
 
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