C++ DMetadata::getImageDateTime方法代码示例

void ImagePropertiesGPSTab::setMetadata(const DMetadata& meta, const KUrl& url)
{
    double lat, lng;
    const bool haveCoordinates = meta.getGPSLatitudeNumber(&lat) && meta.getGPSLongitudeNumber(&lng);

    if (haveCoordinates)
    {
        double alt;
        const bool haveAlt = meta.getGPSAltitude(&alt);

        KGeoMap::GeoCoordinates coordinates(lat, lng);

        if (haveAlt)
        {
            coordinates.setAlt(alt);
        }

        GPSImageInfo gpsInfo;
        gpsInfo.coordinates = coordinates;
        gpsInfo.dateTime    = meta.getImageDateTime();
        gpsInfo.rating      = meta.getImageRating();
        gpsInfo.url         = url;
        setGPSInfoList(GPSImageInfo::List() << gpsInfo);
    }
    else
    {
        clearGPSInfo();
    }
}

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());
        }
    }
}

/**
 * @brief This function finds the best representative marker from a group of markers. This is needed to display a thumbnail for a marker group.
 * @param indices A list containing markers.
 * @param sortKey Determines the sorting options and is actually of type GPSImageInfoSorter::SortOptions
 * @return Returns the index of the marker.
 */
QPersistentModelIndex MapViewModelHelper::bestRepresentativeIndexFromList(const QList<QPersistentModelIndex>& list,
                                                                          const int sortKey)
{
    if (list.isEmpty())
    {
        return QPersistentModelIndex();
    }

    // first convert from QPersistentModelIndex to QModelIndex
    QList<QModelIndex> indexList;
    QModelIndex        bestIndex;

    for (int i=0; i < list.count(); ++i)
    {
        const QModelIndex newIndex(list.at(i));
        indexList.append(newIndex);
    }

    switch (d->application)
    {
        case MapWidgetView::ApplicationDigikam:
        {
            // now get the ImageInfos and convert them to GPSImageInfos
            const QList<ImageInfo> imageInfoList =  d->model->imageInfos(indexList);
            GPSImageInfo::List gpsImageInfoList;

            foreach(const ImageInfo& imageInfo, imageInfoList)
            {
                GPSImageInfo gpsImageInfo;

                if (ImagePropertiesSideBarDB::GPSImageInfofromImageInfo(imageInfo, &gpsImageInfo))
                {
                    gpsImageInfoList << gpsImageInfo;
                }
            }

            if (gpsImageInfoList.size()!=indexList.size())
            {
                // this is a problem, and unexpected
                return indexList.first();
            }

            // now determine the best available index
            bestIndex                     = indexList.first();
            GPSImageInfo bestGPSImageInfo = gpsImageInfoList.first();

            for (int i=1; i < gpsImageInfoList.count(); ++i)
            {
                const GPSImageInfo& currentInfo = gpsImageInfoList.at(i);

                if (GPSImageInfoSorter::fitsBetter(bestGPSImageInfo, GeoIface::SelectedNone,
                                                   currentInfo, GeoIface::SelectedNone,
                                                   GeoIface::SelectedNone, GPSImageInfoSorter::SortOptions(sortKey)))
                {
                    bestIndex        = indexList.at(i);
                    bestGPSImageInfo = currentInfo;
                }
            }

            break;
        }

        case MapWidgetView::ApplicationImportUI:
        {
            // now get the CamItemInfo and convert them to GPSImageInfos
            const QList<CamItemInfo> imageInfoList =  d->importModel->camItemInfos(indexList);
            GPSImageInfo::List       gpsImageInfoList;

            foreach(const CamItemInfo& imageInfo, imageInfoList)
            {
                const DMetadata meta(imageInfo.url().toLocalFile());
                double          lat, lng;
                const bool      hasCoordinates = meta.getGPSLatitudeNumber(&lat) && meta.getGPSLongitudeNumber(&lng);

                if (!hasCoordinates)
                {
                    continue;
                }

                GeoIface::GeoCoordinates coordinates(lat, lng);

                double alt;
                const bool haveAlt = meta.getGPSAltitude(&alt);

                if (haveAlt)
                {
                    coordinates.setAlt(alt);
                }

                GPSImageInfo gpsImageInfo;
                gpsImageInfo.coordinates = coordinates;
                gpsImageInfo.dateTime    = meta.getImageDateTime();
                gpsImageInfo.rating      = meta.getImageRating();
                gpsImageInfo.url         = imageInfo.url();
//.........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());
}