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

Example 1 with TextSpecInfoAtom

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

the class HSLFTextParagraph method updateStyles.

/**
     * Update paragraph and character styles - merges them when subsequential styles match
     */
private static void updateStyles(List<HSLFTextParagraph> paragraphs) {
    final String rawText = toInternalString(getRawText(paragraphs));
    TextHeaderAtom headerAtom = paragraphs.get(0)._headerAtom;
    StyleTextPropAtom styleAtom = findStyleAtomPresent(headerAtom, rawText.length());
    // Update the text length for its Paragraph and Character stylings
    // * reset the length, to the new string's length
    // * add on +1 if the last block
    styleAtom.clearStyles();
    TextPropCollection lastPTPC = null, lastRTPC = null, ptpc = null, rtpc = null;
    for (HSLFTextParagraph para : paragraphs) {
        ptpc = para.getParagraphStyle();
        ptpc.updateTextSize(0);
        if (!ptpc.equals(lastPTPC)) {
            lastPTPC = styleAtom.addParagraphTextPropCollection(0);
            lastPTPC.copy(ptpc);
        }
        for (HSLFTextRun tr : para.getTextRuns()) {
            rtpc = tr.getCharacterStyle();
            rtpc.updateTextSize(0);
            if (!rtpc.equals(lastRTPC)) {
                lastRTPC = styleAtom.addCharacterTextPropCollection(0);
                lastRTPC.copy(rtpc);
            }
            int len = tr.getLength();
            ptpc.updateTextSize(ptpc.getCharactersCovered() + len);
            rtpc.updateTextSize(len);
            lastPTPC.updateTextSize(lastPTPC.getCharactersCovered() + len);
            lastRTPC.updateTextSize(lastRTPC.getCharactersCovered() + len);
        }
    }
    if (lastPTPC == null || lastRTPC == null || ptpc == null || rtpc == null) {
        // NOSONAR
        throw new HSLFException("Not all TextPropCollection could be determined.");
    }
    ptpc.updateTextSize(ptpc.getCharactersCovered() + 1);
    rtpc.updateTextSize(rtpc.getCharactersCovered() + 1);
    lastPTPC.updateTextSize(lastPTPC.getCharactersCovered() + 1);
    lastRTPC.updateTextSize(lastRTPC.getCharactersCovered() + 1);
    /**
         * If TextSpecInfoAtom is present, we must update the text size in it,
         * otherwise the ppt will be corrupted
         */
    for (Record r : paragraphs.get(0).getRecords()) {
        if (r instanceof TextSpecInfoAtom) {
            ((TextSpecInfoAtom) r).setParentSize(rawText.length() + 1);
            break;
        }
    }
}