Examples with HemfRecord org.apache.poi.hemf.record.HemfRecord used on opensource projects

Example 6 with HemfRecord

use of org.apache.poi.hemf.record.HemfRecord in project tika by apache.

the class EMFParser method parse.

@Override
public void parse(InputStream stream, ContentHandler handler, Metadata metadata, ParseContext context) throws IOException, SAXException, TikaException {
    EmbeddedDocumentExtractor embeddedDocumentExtractor = null;
    XHTMLContentHandler xhtml = new XHTMLContentHandler(handler, metadata);
    xhtml.startDocument();
    try {
        HemfExtractor ex = new HemfExtractor(stream);
        long lastY = -1;
        long lastX = -1;
        //derive this from the font or frame/bounds information
        long fudgeFactorX = 1000;
        StringBuilder buffer = new StringBuilder();
        for (HemfRecord record : ex) {
            if (record.getRecordType() == HemfRecordType.comment) {
                AbstractHemfComment comment = ((HemfCommentRecord) record).getComment();
                if (comment instanceof HemfCommentPublic.MultiFormats) {
                    if (embeddedDocumentExtractor == null) {
                        embeddedDocumentExtractor = EmbeddedDocumentUtil.getEmbeddedDocumentExtractor(context);
                    }
                    handleMultiFormats((HemfCommentPublic.MultiFormats) comment, xhtml, embeddedDocumentExtractor);
                } else if (comment instanceof HemfCommentPublic.WindowsMetafile) {
                    if (embeddedDocumentExtractor == null) {
                        embeddedDocumentExtractor = EmbeddedDocumentUtil.getEmbeddedDocumentExtractor(context);
                    }
                    handleWMF((HemfCommentPublic.WindowsMetafile) comment, xhtml, embeddedDocumentExtractor);
                }
            } else if (record.getRecordType().equals(HemfRecordType.exttextoutw)) {
                HemfText.ExtTextOutW extTextOutW = (HemfText.ExtTextOutW) record;
                if (lastY > -1 && lastY != extTextOutW.getY()) {
                    xhtml.startElement("p");
                    xhtml.characters(buffer.toString());
                    xhtml.endElement("p");
                    buffer.setLength(0);
                    lastX = -1;
                }
                if (lastX > -1 && extTextOutW.getX() - lastX > fudgeFactorX) {
                    buffer.append(" ");
                }
                String txt = extTextOutW.getText();
                buffer.append(txt);
                lastY = extTextOutW.getY();
                lastX = extTextOutW.getX();
            }
        }
        if (buffer.length() > 0) {
            xhtml.startElement("p");
            xhtml.characters(buffer.toString());
            xhtml.endElement("p");
        }
    } catch (RecordFormatException e) {
        //POI's hemfparser can throw these for "parse exceptions"
        throw new TikaException(e.getMessage(), e);
    } catch (RuntimeException e) {
        //convert Runtime to RecordFormatExceptions
        throw new TikaException(e.getMessage(), e);
    }
    xhtml.endDocument();
}