Examples with EscherRecord org.apache.poi.ddf.EscherRecord used on opensource projects

Example 31 with EscherRecord

use of org.apache.poi.ddf.EscherRecord in project poi by apache.

the class AbstractEscherHolderRecord method getRecordSize.

@Override
public int getRecordSize() {
    byte[] rawData = getRawData();
    if (escherRecords.size() == 0 && rawData != null) {
        // XXX: It should be possible to derive this without concatenating the array, too.
        return rawData.length;
    }
    int size = 0;
    for (EscherRecord r : escherRecords) {
        size += r.getRecordSize();
    }
    return size;
}

Example 32 with EscherRecord

use of org.apache.poi.ddf.EscherRecord in project poi by apache.

the class EscherRecordHolder method fillEscherRecords.

private void fillEscherRecords(byte[] data, int offset, int size) {
    EscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
    int pos = offset;
    while (pos < offset + size) {
        EscherRecord r = recordFactory.createRecord(data, pos);
        escherRecords.add(r);
        int bytesRead = r.fillFields(data, pos, recordFactory);
        // There is an empty byte between each top-level record in a Word doc
        pos += bytesRead + 1;
    }
}

Example 33 with EscherRecord

use of org.apache.poi.ddf.EscherRecord in project poi by apache.

the class EscherRecordHolder method toString.

public String toString() {
    StringBuffer buffer = new StringBuffer();
    if (escherRecords.size() == 0) {
        buffer.append("No Escher Records Decoded").append("\n");
    }
    Iterator<EscherRecord> iterator = escherRecords.iterator();
    while (iterator.hasNext()) {
        EscherRecord r = iterator.next();
        buffer.append(r);
    }
    return buffer.toString();
}

Example 34 with EscherRecord

use of org.apache.poi.ddf.EscherRecord in project poi by apache.

the class PicturesTable method searchForPictures.

/**
     * Performs a recursive search for pictures in the given list of escher records.
     *
     * @param escherRecords the escher records.
     * @param pictures the list to populate with the pictures.
     */
private void searchForPictures(List<EscherRecord> escherRecords, List<Picture> pictures) {
    for (EscherRecord escherRecord : escherRecords) {
        if (escherRecord instanceof EscherBSERecord) {
            EscherBSERecord bse = (EscherBSERecord) escherRecord;
            EscherBlipRecord blip = bse.getBlipRecord();
            if (blip != null) {
                pictures.add(new Picture(blip));
            } else if (bse.getOffset() > 0) {
                try {
                    // Blip stored in delay stream, which in a word doc, is
                    // the main stream
                    EscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
                    EscherRecord record = recordFactory.createRecord(_mainStream, bse.getOffset());
                    if (record instanceof EscherBlipRecord) {
                        record.fillFields(_mainStream, bse.getOffset(), recordFactory);
                        blip = (EscherBlipRecord) record;
                        pictures.add(new Picture(blip));
                    }
                } catch (Exception exc) {
                    logger.log(POILogger.WARN, "Unable to load picture from BLIB record at offset #", Integer.valueOf(bse.getOffset()), exc);
                }
            }
        }
        // Recursive call.
        searchForPictures(escherRecord.getChildRecords(), pictures);
    }
}

Example 35 with EscherRecord

use of org.apache.poi.ddf.EscherRecord in project poi by apache.

the class TestDrawingAggregate method testIncompleteData.

/**
     * when reading incomplete data ensure that the serialized bytes match the source
     */
@Test
public void testIncompleteData() throws IOException {
    //EscherDgContainer and EscherSpgrContainer length exceeds the actual length of the data
    String data = "H4sIAAAAAAAAAGWOOw7CQAxE32YTsSRIWSgQJSUloqSm5g4ICURBg+iBK3APGi6wBWeh9xGYbEps2WON" + "P+OWwpYeIsECMFC8S2jxNvMdlrYQ5xha5N8K6ryHdir6+avwOer5l3hq2NPYWuWN0n1dIsgfbgshuSj1" + "+2eqbvLdxQ0ndhy5KJ/lc1ZZK9okY5X/gSbrHZTH1vE/ozagTcwAAAA=";
    byte[] dgBytes = decompress(data);
    List<EscherRecord> records = new ArrayList<EscherRecord>();
    EscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
    int pos = 0;
    while (pos < dgBytes.length) {
        EscherRecord r = recordFactory.createRecord(dgBytes, pos);
        int bytesRead = r.fillFields(dgBytes, pos, recordFactory);
        records.add(r);
        pos += bytesRead;
    }
    assertEquals("data was not fully read", dgBytes.length, pos);
    // serialize to byte array
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    for (EscherRecord r : records) {
        out.write(r.serialize());
    }
    assertEquals(HexDump.toHex(dgBytes, 10), HexDump.toHex(out.toByteArray(), 10));
}