Examples with OutlineTextRefAtom org.apache.poi.hslf.record.OutlineTextRefAtom used on opensource projects

Example 1 with OutlineTextRefAtom

use of org.apache.poi.hslf.record.OutlineTextRefAtom in project poi by apache.

the class HSLFTextParagraph method findTextParagraphs.

/**
     * Scans through the supplied record array, looking for
     * a TextHeaderAtom followed by one of a TextBytesAtom or
     * a TextCharsAtom. Builds up TextRuns from these
     *
     * @param wrapper an EscherTextboxWrapper
     */
protected static List<HSLFTextParagraph> findTextParagraphs(EscherTextboxWrapper wrapper, HSLFSheet sheet) {
    // propagate parents to parent-aware records
    RecordContainer.handleParentAwareRecords(wrapper);
    int shapeId = wrapper.getShapeId();
    List<HSLFTextParagraph> rv = null;
    OutlineTextRefAtom ota = (OutlineTextRefAtom) wrapper.findFirstOfType(OutlineTextRefAtom.typeID);
    if (ota != null) {
        // if we are based on an outline, there are no further records to be parsed from the wrapper
        if (sheet == null) {
            throw new HSLFException("Outline atom reference can't be solved without a sheet record");
        }
        List<List<HSLFTextParagraph>> sheetRuns = sheet.getTextParagraphs();
        assert (sheetRuns != null);
        int idx = ota.getTextIndex();
        for (List<HSLFTextParagraph> r : sheetRuns) {
            if (r.isEmpty()) {
                continue;
            }
            int ridx = r.get(0).getIndex();
            if (ridx > idx) {
                break;
            }
            if (ridx == idx) {
                if (rv == null) {
                    rv = r;
                } else {
                    // create a new container
                    // TODO: ... is this case really happening?
                    rv = new ArrayList<HSLFTextParagraph>(rv);
                    rv.addAll(r);
                }
            }
        }
        if (rv == null || rv.isEmpty()) {
            logger.log(POILogger.WARN, "text run not found for OutlineTextRefAtom.TextIndex=" + idx);
        }
    } else {
        if (sheet != null) {
            // check sheet runs first, so we get exactly the same paragraph list
            List<List<HSLFTextParagraph>> sheetRuns = sheet.getTextParagraphs();
            assert (sheetRuns != null);
            for (List<HSLFTextParagraph> paras : sheetRuns) {
                if (!paras.isEmpty() && paras.get(0)._headerAtom.getParentRecord() == wrapper) {
                    rv = paras;
                    break;
                }
            }
        }
        if (rv == null) {
            // if we haven't found the wrapper in the sheet runs, create a new paragraph list from its record
            List<List<HSLFTextParagraph>> rvl = findTextParagraphs(wrapper.getChildRecords());
            switch(rvl.size()) {
                // nothing found
                case 0:
                    break;
                // normal case
                case 1:
                    rv = rvl.get(0);
                    break;
                default:
                    throw new HSLFException("TextBox contains more than one list of paragraphs.");
            }
        }
    }
    if (rv != null) {
        StyleTextProp9Atom styleTextProp9Atom = wrapper.getStyleTextProp9Atom();
        for (HSLFTextParagraph htp : rv) {
            htp.setShapeId(shapeId);
            htp.setStyleTextProp9Atom(styleTextProp9Atom);
        }
    }
    return rv;
}