C++ DMetadata::getPhotographInformation方法代码示例

void ShowFoto::openUrls(const QList<QUrl> &urls)
{
    if (!urls.isEmpty())
    {
        ShowfotoItemInfoList infos;
        ShowfotoItemInfo iteminfo;
        DMetadata meta;

        for (QList<QUrl>::const_iterator it = urls.constBegin(); it != urls.constEnd(); ++it)
        {
            QFileInfo fi((*it).toLocalFile());
            iteminfo.name      = fi.fileName();
            iteminfo.mime      = fi.suffix();
            iteminfo.size      = fi.size();
            iteminfo.url       = QUrl::fromLocalFile(fi.filePath());
            iteminfo.folder    = fi.path();
            iteminfo.dtime     = fi.created();
            meta.load(fi.filePath());
            iteminfo.ctime     = meta.getImageDateTime();
            iteminfo.width     = meta.getImageDimensions().width();
            iteminfo.height    = meta.getImageDimensions().height();
            iteminfo.photoInfo = meta.getPhotographInformation();
            infos.append(iteminfo);
        }

        if (d->droppedUrls)
        {
            //replace the equal sign with "<<" to keep the previous pics in the list
            d->infoList << infos;
        }
        else
        {
            d->infoList = infos;
            d->model->clearShowfotoItemInfos();
            emit signalInfoList(d->infoList);
            slotOpenUrl(d->thumbBar->currentInfo());
        }
    }
}

//.........这里部分代码省略.........
    mpixels.setNum(dims.width()*dims.height()/1000000.0, 'f', 2);
    str = (!dims.isValid()) ? unknown : i18n("%1x%2 (%3Mpx)",
            dims.width(), dims.height(), mpixels);
    d->labelImageDimensions->setAdjustedText(str);

    if (!dims.isValid()) str = unknown;
    else ImagePropertiesTab::aspectRatioToString(dims.width(), dims.height(), str);

    d->labelImageRatio->setAdjustedText(str);

    // -- Download information ------------------------------------------

    d->labelNewFileName->setAdjustedText(itemInfo.downloadName.isEmpty() ? i18n("<i>unchanged</i>") : itemInfo.downloadName);

    if (itemInfo.downloaded == CamItemInfo::DownloadUnknown)
    {
        str = unknown;
    }
    else if (itemInfo.downloaded == CamItemInfo::DownloadedYes)
    {
        str = i18n("Yes");
    }
    else
    {
        str = i18n("No");
    }

    d->labelAlreadyDownloaded->setAdjustedText(str);

    // -- Photograph information ------------------------------------------
    // Note: If something is changed here, please updated albumfiletip section too.

    QString unavailable(i18n("<i>unavailable</i>"));
    PhotoInfoContainer photoInfo = meta.getPhotographInformation();

    if (photoInfo.isEmpty())
    {
        widget(1)->hide();
    }
    else
    {
        widget(1)->show();
    }

    ImagePropertiesTab::shortenedMakeInfo(photoInfo.make);
    ImagePropertiesTab::shortenedModelInfo(photoInfo.model);
    d->labelPhotoMake->setAdjustedText(photoInfo.make.isEmpty()   ? unavailable : photoInfo.make);
    d->labelPhotoModel->setAdjustedText(photoInfo.model.isEmpty() ? unavailable : photoInfo.model);

    if (photoInfo.dateTime.isValid())
    {
        str = QLocale().toString(photoInfo.dateTime, QLocale::ShortFormat);
        d->labelPhotoDateTime->setAdjustedText(str);
    }
    else
    {
        d->labelPhotoDateTime->setAdjustedText(unavailable);
    }

    d->labelPhotoLens->setAdjustedText(photoInfo.lens.isEmpty() ? unavailable : photoInfo.lens);
    d->labelPhotoAperture->setAdjustedText(photoInfo.aperture.isEmpty() ? unavailable : photoInfo.aperture);

    if (photoInfo.focalLength35mm.isEmpty())
    {
        d->labelPhotoFocalLength->setAdjustedText(photoInfo.focalLength.isEmpty() ? unavailable : photoInfo.focalLength);
    }

LensFunIface::MetadataMatch LensFunIface::findFromMetadata(const DMetadata& meta)
{
    MetadataMatch ret  = MetadataNoMatch;
    d->settings        = LensFunContainer();
    d->usedCamera      = 0;
    d->usedLens        = 0;
    d->lensDescription.clear();

    if (meta.isEmpty())
    {
        qCDebug(DIGIKAM_DIMG_LOG) << "No metadata available";
        return LensFunIface::MetadataUnavailable;
    }

    PhotoInfoContainer photoInfo = meta.getPhotographInformation();
    d->makeDescription           = photoInfo.make.trimmed();
    d->modelDescription          = photoInfo.model.trimmed();
    bool exactMatch              = true;

    if (d->makeDescription.isEmpty())
    {
        qCDebug(DIGIKAM_DIMG_LOG) << "No camera maker info available";
        exactMatch = false;
    }
    else
    {
        // NOTE: see bug #184156:
        // Some rules to wrap unknown camera device from Lensfun database, which have equivalent in fact.
        if (d->makeDescription == QLatin1String("Canon"))
        {
            if (d->modelDescription == QLatin1String("Canon EOS Kiss Digital X"))
            {
                d->modelDescription = QLatin1String("Canon EOS 400D DIGITAL");
            }

            if (d->modelDescription == QLatin1String("G1 X"))
            {
                d->modelDescription = QLatin1String("G1X");
            }
        }

        d->lensDescription = photoInfo.lens.trimmed();

        // ------------------------------------------------------------------------------------------------

        DevicePtr lfCamera = findCamera(d->makeDescription, d->modelDescription);

        if (lfCamera)
        {
            setUsedCamera(lfCamera);

            qCDebug(DIGIKAM_DIMG_LOG) << "Camera maker   : " << d->settings.cameraMake;
            qCDebug(DIGIKAM_DIMG_LOG) << "Camera model   : " << d->settings.cameraModel;

            // ------------------------------------------------------------------------------------------------
            // -- Performing lens description searches.

            if (!d->lensDescription.isEmpty())
            {
                LensList lensMatches;
                QString  lensCutted;
                LensList lensList;

                // STAGE 1, search in LensFun database as well.
                lensList = findLenses(d->usedCamera, d->lensDescription);
                qCDebug(DIGIKAM_DIMG_LOG) << "* Check for lens by direct query (" << d->lensDescription << " : " << lensList.count() << ")";
                lensMatches.append(lensList);

                // STAGE 2, Adapt exiv2 strings to lensfun strings for Nikon.
                lensCutted = d->lensDescription;

                if (lensCutted.contains(QLatin1String("Nikon")))
                {
                    lensCutted.remove(QLatin1String("Nikon "));
                    lensCutted.remove(QLatin1String("Zoom-"));
                    lensCutted.replace(QLatin1String("IF-ID"), QLatin1String("ED-IF"));
                    lensList = findLenses(d->usedCamera, lensCutted);
                    qCDebug(DIGIKAM_DIMG_LOG) << "* Check for Nikon lens (" << lensCutted << " : " << lensList.count() << ")";
                    lensMatches.append(lensList);
                }

                // TODO : Add here more specific lens maker rules.

                // LAST STAGE, Adapt exiv2 strings to lensfun strings. Some lens description use something like that :
                // "10.0 - 20.0 mm". This must be adapted like this : "10-20mm"
                lensCutted = d->lensDescription;
                lensCutted.replace(QRegExp(QLatin1String("\\.[0-9]")), QLatin1String("")); //krazy:exclude=doublequote_chars
                lensCutted.replace(QLatin1String(" - "), QLatin1String("-"));
                lensCutted.replace(QLatin1String(" mm"), QLatin1String("mn"));
                lensList   = findLenses(d->usedCamera, lensCutted);
                qCDebug(DIGIKAM_DIMG_LOG) << "* Check for no maker lens (" << lensCutted << " : " << lensList.count() << ")";
                lensMatches.append(lensList);

                // Remove all duplicate lenses in the list by using QSet.
                lensMatches = lensMatches.toSet().toList();

                // Display the results.

                if (lensMatches.isEmpty())
                {
//.........这里部分代码省略.........

void ShowFoto::openFolder(const QUrl& url)
{
    if (!url.isValid() || !url.isLocalFile())
    {
        return;
    }

    // Parse image IO mime types registration to get files filter pattern.

    QString filter;
    QStringList mimeTypes = supportedImageMimeTypes(QIODevice::ReadOnly, filter);

    QString patterns = filter.toLower();
    patterns.append (QLatin1String(" "));
    patterns.append (filter.toUpper());

    qCDebug(DIGIKAM_SHOWFOTO_LOG) << "patterns=" << patterns;

    // Get all image files from directory.

    QDir dir(url.toLocalFile(), patterns);
    dir.setFilter(QDir::Files);

    if (!dir.exists())
    {
        return;
    }

    QFileInfoList fileinfolist = dir.entryInfoList();

    if (fileinfolist.isEmpty())
    {
        //emit signalSorry();
        return;
    }

    QFileInfoList::const_iterator fi;
    ShowfotoItemInfoList infos;
    ShowfotoItemInfo iteminfo;
    DMetadata meta;

    // And open all items in image editor.

    for (fi = fileinfolist.constBegin(); fi != fileinfolist.constEnd(); ++fi)
    {
        iteminfo.name      = (*fi).fileName();
        iteminfo.mime      = (*fi).suffix();
        iteminfo.size      = (*fi).size();
        iteminfo.folder    = (*fi).path();
        iteminfo.url       = QUrl::fromLocalFile((*fi).filePath());
        iteminfo.dtime     = (*fi).created();
        meta.load((*fi).filePath());
        iteminfo.ctime     = meta.getImageDateTime();
        iteminfo.width     = meta.getImageDimensions().width();
        iteminfo.height    = meta.getImageDimensions().height();
        iteminfo.photoInfo = meta.getPhotographInformation();
        infos.append(iteminfo);
    }

    if (d->droppedUrls)
    {
        d->infoList << infos;
    }
    else
    {
        d->infoList = infos;
        d->model->clearShowfotoItemInfos();
        emit signalInfoList(d->infoList);
        slotOpenUrl(d->thumbBar->currentInfo());
    }

    d->lastOpenedDirectory = QUrl::fromLocalFile(dir.absolutePath());
}