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feat: use libexiv2 to obtain more image metadata

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This commit is contained in:
Gary Wang
2020-11-15 19:53:47 +08:00
parent 8c152dc862
commit 5705f02636
8 changed files with 218 additions and 7 deletions
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42
app/metadatamodel.cpp
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@ -1,4 +1,5 @@
#include "metadatamodel.h"
#include "exiv2wrapper.h"
#include <QDebug>
#include <QDateTime>
@ -31,14 +32,12 @@ void MetadataModel::setFile(const QString &imageFilePath)
const QString & imageDimensionsString = imageSize(imgReader.size());
const QString & imageRatioString = imageSizeRatio(imgReader.size());
#if 0
appendSection(QStringLiteral("Description"), tr("Description", "Section name."));
appendSection(QStringLiteral("Origin"), tr("Origin", "Section name."));
#endif // 0
appendSection(QStringLiteral("Image"), tr("Image", "Section name."));
#if 0
appendSection(QStringLiteral("Camera"), tr("Camera", "Section name."));
appendSection(QStringLiteral("AdvancedPhoto"), tr("Advanced photo", "Section name."));
#if 0
appendSection(QStringLiteral("GPS"), tr("GPS", "Section name."));
#endif // 0
appendSection(QStringLiteral("File"), tr("File", "Section name."));
@ -60,6 +59,31 @@ void MetadataModel::setFile(const QString &imageFilePath)
tr("Date Created"), birthTimeString);
appendProperty(QStringLiteral("File"), QStringLiteral("File.LastModified"),
tr("Date Modified"), lastModifiedTimeString);
Exiv2Wrapper wrapper;
if (wrapper.load(imageFilePath)) {
wrapper.cacheSections();
appendProperty(QStringLiteral("Description"), QStringLiteral("Description.Comments"),
tr("Comments"), wrapper.comment());
appendExivPropertyIfExist(wrapper, QStringLiteral("Origin"),
QStringLiteral("Exif.Image.Software"), tr("Program name"));
appendExivPropertyIfExist(wrapper, QStringLiteral("Image"),
QStringLiteral("Exif.Photo.ColorSpace"), tr("Colour representation"));
appendExivPropertyIfExist(wrapper, QStringLiteral("Camera"),
QStringLiteral("Exif.Image.Make"), tr("Camera maker"));
appendExivPropertyIfExist(wrapper, QStringLiteral("Camera"),
QStringLiteral("Exif.Image.Model"), tr("Camera model"));
appendExivPropertyIfExist(wrapper, QStringLiteral("Camera"),
QStringLiteral("Exif.Photo.ISOSpeedRatings"), tr("ISO speed"));
appendExivPropertyIfExist(wrapper, QStringLiteral("Camera"),
QStringLiteral("Exif.Photo.FocalLength"), tr("Focal length"));
appendExivPropertyIfExist(wrapper, QStringLiteral("AdvancedPhoto"),
QStringLiteral("Exif.Photo.DigitalZoomRatio"), tr("Digital zoom"));
appendExivPropertyIfExist(wrapper, QStringLiteral("AdvancedPhoto"),
QStringLiteral("Exif.Photo.ExifVersion"), tr("EXIF version"));
}
}
QString MetadataModel::imageSize(const QSize &size)
@ -126,6 +150,18 @@ bool MetadataModel::updateProperty(const QString &propertyKey, const QString &pr
return false;
}
bool MetadataModel::appendExivPropertyIfExist(const Exiv2Wrapper &wrapper, const QString &sectionKey, const QString &exiv2propertyKey, const QString &propertyDisplayName)
{
const QString & value = wrapper.value(exiv2propertyKey);
if (!value.isEmpty()) {
appendProperty(sectionKey, exiv2propertyKey,
propertyDisplayName.isEmpty() ? wrapper.label(exiv2propertyKey) : propertyDisplayName,
value);
return true;
}
return false;
}
QModelIndex MetadataModel::index(int row, int column, const QModelIndex &parent) const
{
if (!hasIndex(row, column, parent)) {