C++ DMetadata::load方法代码示例

bool AssignTemplate::toolOperations()
{
    DMetadata meta;

    if (image().isNull())
    {
        if (!meta.load(inputUrl().toLocalFile()))
        {
            return false;
        }
    }
    else
    {
        meta.setData(image().getMetadata());
    }

    QString title = settings()[QLatin1String("TemplateTitle")].toString();

    if (title == Template::removeTemplateTitle())
    {
        meta.removeMetadataTemplate();
    }
    else if (title.isEmpty())
    {
        // Nothing to do.
    }
    else
    {
        Template t = TemplateManager::defaultManager()->findByTitle(title);
        meta.removeMetadataTemplate();
        meta.setMetadataTemplate(t);
    }

    bool ret = true;

    if (image().isNull())
    {
        QFile::remove(outputUrl().toLocalFile());
        ret = QFile::copy(inputUrl().toLocalFile(), outputUrl().toLocalFile());

        if (ret && !title.isEmpty())
        {
            ret = meta.save(outputUrl().toLocalFile());
        }
    }
    else
    {
        if (!title.isEmpty())
        {
            image().setMetadata(meta.data());
        }

        ret = savefromDImg();
    }

    return ret;
}

void IPTCEditWidget::slotItemChanged()
{
    d->page_content->setHeader(d->dlg->currentItemTitleHeader(i18n("<qt>Content Information<br/>"
                     "<i>Use this panel to describe the visual content of the image</i></qt>")));
    d->page_origin->setHeader(d->dlg->currentItemTitleHeader(i18n("<qt>Origin Information<br/>"
                    "<i>Use this panel for formal descriptive information about the image</i></qt>")));
    d->page_credits->setHeader(d->dlg->currentItemTitleHeader(i18n("<qt>Credit Information<br/>"
                     "<i>Use this panel to record copyright information about the image</i></qt>")));
    d->page_subjects->setHeader(d->dlg->currentItemTitleHeader(i18n("<qt>Subject Information<br/>"
                      "<i>Use this panel to record subject information about the image</i></qt>")));
    d->page_keywords->setHeader(d->dlg->currentItemTitleHeader(i18n("<qt>Keyword Information<br/>"
                      "<i>Use this panel to record keywords relevant to the image</i></qt>")));
    d->page_categories->setHeader(d->dlg->currentItemTitleHeader(i18n("<qt>Category Information<br/>"
                        "<i>Use this panel to record categories relevant to the image</i></qt>")));
    d->page_status->setHeader(d->dlg->currentItemTitleHeader(i18n("<qt>Status Information<br/>"
                    "<i>Use this panel to record workflow information</i></qt>")));
    d->page_properties->setHeader(d->dlg->currentItemTitleHeader(i18n("<qt>Status Properties<br/>"
                      "<i>Use this panel to record workflow properties</i></qt>")));
    d->page_envelope->setHeader(d->dlg->currentItemTitleHeader(i18n("<qt>Envelope Information<br/>"
                      "<i>Use this panel to record editorial details</i></qt>")));
    
    DMetadata meta;
    meta.load((*d->dlg->currentItem()).path());

    d->exifData = meta.getExifEncoded();
    d->iptcData = meta.getIptc();
    d->contentPage->readMetadata(d->iptcData);
    d->originPage->readMetadata(d->iptcData);
    d->creditsPage->readMetadata(d->iptcData);
    d->subjectsPage->readMetadata(d->iptcData);
    d->keywordsPage->readMetadata(d->iptcData);
    d->categoriesPage->readMetadata(d->iptcData);
    d->statusPage->readMetadata(d->iptcData);
    d->propertiesPage->readMetadata(d->iptcData);
    d->envelopePage->readMetadata(d->iptcData);

    d->isReadOnly = !DMetadata::canWriteIptc((*d->dlg->currentItem()).path());
    emit signalSetReadOnly(d->isReadOnly);

    d->page_content->setEnabled(!d->isReadOnly);
    d->page_origin->setEnabled(!d->isReadOnly);
    d->page_credits->setEnabled(!d->isReadOnly);
    d->page_subjects->setEnabled(!d->isReadOnly);
    d->page_keywords->setEnabled(!d->isReadOnly);
    d->page_categories->setEnabled(!d->isReadOnly);
    d->page_status->setEnabled(!d->isReadOnly);
    d->page_properties->setEnabled(!d->isReadOnly);
    d->page_envelope->setEnabled(!d->isReadOnly);
}

MyImageData LoadImageData(const QUrl& urlToLoad)
{
    MyImageData imageData;
    imageData.url = urlToLoad;

    // TODO: error handling!
    DMetadata meta;
    meta.load(urlToLoad.toLocalFile());
    double lat, lon, alt;

    if (meta.getGPSInfo(alt, lat, lon))
    {
        imageData.coordinates.setLatLon(lat, lon);
        imageData.coordinates.setAlt(alt);
    }

    return imageData;
}

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());
        }
    }
}

void IPTCEditWidget::apply()
{
    if (d->modified && !d->isReadOnly)
    {
        d->contentPage->applyMetadata(d->exifData, d->iptcData);
        d->originPage->applyMetadata(d->exifData, d->iptcData);
        d->creditsPage->applyMetadata(d->iptcData);
        d->subjectsPage->applyMetadata(d->iptcData);
        d->keywordsPage->applyMetadata(d->iptcData);
        d->categoriesPage->applyMetadata(d->iptcData);
        d->statusPage->applyMetadata(d->iptcData);
        d->propertiesPage->applyMetadata(d->iptcData);
        d->envelopePage->applyMetadata(d->iptcData);

        DMetadata meta;

        meta.load((*d->dlg->currentItem()).path());
        meta.setExif(d->exifData);
        meta.setIptc(d->iptcData);
        meta.save((*d->dlg->currentItem()).path());
        d->modified = false;
    }
}

void TimeAdjustTask::run()
{
    if (m_cancel)
        return;

    emit signalProcessStarted(d->url);

    QDateTime dt = d->itemsMap.value(d->url);

    if (!dt.isValid())
    {
        emit signalProcessEnded(d->url, TimeAdjustList::META_TIME_ERROR);
        emit signalDone();
        return;
    }

    bool writeToSidecar  = (MetaEngineSettings::instance()->settings()
                            .metadataWritingMode != DMetadata::WRITE_TO_FILE_ONLY);

    bool metadataChanged = d->settings.updEXIFModDate || d->settings.updEXIFOriDate ||
                           d->settings.updEXIFDigDate || d->settings.updEXIFThmDate ||
                           d->settings.updIPTCDate    || d->settings.updXMPVideo    ||
                           d->settings.updXMPDate;

    int status = TimeAdjustList::NOPROCESS_ERROR;

    if (metadataChanged)
    {
        bool ret = true;

        DMetadata meta;

        ret &= meta.load(d->url.toLocalFile());

        if (ret)
        {
            QString exifDateTimeFormat = QLatin1String("yyyy:MM:dd hh:mm:ss");
            QString xmpDateTimeFormat  = QLatin1String("yyyy:MM:ddThh:mm:ss");

            if (writeToSidecar || meta.canWriteExif(d->url.toLocalFile()))
            {
                if (d->settings.updEXIFModDate)
                {
                    if (!d->settings.updIfAvailable ||
                        !meta.getExifTagString("Exif.Image.DateTime").isEmpty())
                    {
                        ret &= meta.setExifTagString("Exif.Image.DateTime",
                                                     dt.toString(exifDateTimeFormat));
                    }
                }

                if (d->settings.updEXIFOriDate)
                {
                    if (!d->settings.updIfAvailable ||
                        !meta.getExifTagString("Exif.Photo.DateTimeOriginal").isEmpty())
                    {
                        ret &= meta.setExifTagString("Exif.Photo.DateTimeOriginal",
                                                     dt.toString(exifDateTimeFormat));
                    }
                }

                if (d->settings.updEXIFDigDate)
                {
                    if (!d->settings.updIfAvailable ||
                        !meta.getExifTagString("Exif.Photo.DateTimeDigitized").isEmpty())
                    {
                        ret &= meta.setExifTagString("Exif.Photo.DateTimeDigitized",
                                                     dt.toString(exifDateTimeFormat));
                    }
                }

                if (d->settings.updEXIFThmDate)
                {
                   if (!d->settings.updIfAvailable ||
                        !meta.getExifTagString("Exif.Image.PreviewDateTime").isEmpty())
                   {
                       ret &= meta.setExifTagString("Exif.Image.PreviewDateTime",
                                                    dt.toString(exifDateTimeFormat));
                   }
                }
            }
            else if (d->settings.updEXIFModDate || d->settings.updEXIFOriDate ||
                     d->settings.updEXIFDigDate || d->settings.updEXIFThmDate)
            {
                ret = false;
            }

            if (d->settings.updIPTCDate)
            {
                if (writeToSidecar || meta.canWriteIptc(d->url.toLocalFile()))
                {
                    if (!d->settings.updIfAvailable ||
                        !meta.getIptcTagString("Iptc.Application2.DateCreated").isEmpty())
                    {
                        ret &= meta.setIptcTagString("Iptc.Application2.DateCreated",
                                                     dt.date().toString(Qt::ISODate));
                    }

                    if (!d->settings.updIfAvailable ||
                        !meta.getIptcTagString("Iptc.Application2.TimeCreated").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());
}