Examples of org.apache.poi.hssf.record.EscherAggregate

org.apache.poi.hssf.record.EscherAggregate
This class is used to aggregate the MSODRAWING and OBJ record combinations. This is necessary due to the bizare way in which these records are serialized. What happens is that you get a combination of MSODRAWING -> OBJ -> MSODRAWING -> OBJ records but the escher records are serialized _across_ the MSODRAWING records.
It gets even worse when you start looking at TXO records.
So what we do with this class is aggregate lazily. That is we don't aggregate the MSODRAWING -> OBJ records unless we need to modify them. @author Glen Stampoultzis (glens at apache.org)

            if(!createIfMissing) {
                // None found, and not allowed to add in
                return -1;
            }


            EscherAggregate aggregate = new EscherAggregate( drawingManager );
            loc = findFirstRecordLocBySid(EscherAggregate.sid);
            if (loc == -1)
            {
                loc = findFirstRecordLocBySid( WindowTwoRecord.sid );
            }
            else
            {
                getRecords().remove(loc);
            }
            getRecords().add( loc, aggregate );
            return loc;
        }
        else
        {
            List records = getRecords();
            EscherAggregate r = EscherAggregate.createAggregate( records, loc, drawingManager );
            int startloc = loc;
            while ( loc + 1 < records.size()
                    && records.get( loc ) instanceof DrawingRecord
                    && records.get( loc + 1 ) instanceof ObjRecord )
            {

View Full Code Here

     *
     * @param sheet - HSSFSheet
     * @return - EscherAggregate from sheet
     */
    protected EscherAggregate getEscherAggregate(HSSFSheet sheet) {
        EscherAggregate agg = sheetToEscherAggregate.get(sheet.getSheetName());
        if (agg == null) {
            agg = sheet.getDrawingEscherAggregate();
            sheetToEscherAggregate.put(sheet.getSheetName(), agg);
        }
        return agg;

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     * to the standard output.
     */
    public void dumpDrawingRecords(boolean fat) {
        _sheet.aggregateDrawingRecords(_book.getDrawingManager(), false);


        EscherAggregate r = (EscherAggregate) getSheet().findFirstRecordBySid(EscherAggregate.sid);
        List<EscherRecord> escherRecords = r.getEscherRecords();
        PrintWriter w = new PrintWriter(System.out);
        for (Iterator<EscherRecord> iterator = escherRecords.iterator(); iterator.hasNext();) {
            EscherRecord escherRecord = iterator.next();
            if (fat) {
                System.out.println(escherRecord.toString());

View Full Code Here

    public HSSFPatriarch createDrawingPatriarch() {
        // Create the drawing group if it doesn't already exist.
        _book.createDrawingGroup();


        _sheet.aggregateDrawingRecords(_book.getDrawingManager(), true);
        EscherAggregate agg = (EscherAggregate) _sheet.findFirstRecordBySid(EscherAggregate.sid);
        _patriarch = new HSSFPatriarch(this, agg);
        agg.clear();     // Initially the behaviour will be to clear out any existing shapes in the sheet when
                         // creating a new patriarch.
        agg.setPatriarch(_patriarch);
        return _patriarch;
    }

View Full Code Here

            // Workbook has drawing stuff, but this sheet doesn't
            return null;
        }


        // Grab our aggregate record, and wire it up
        EscherAggregate agg = (EscherAggregate) _sheet.findFirstRecordBySid(EscherAggregate.sid);
        return agg;
    }

View Full Code Here

     *  start from scratch!
     */
    public HSSFPatriarch getDrawingPatriarch() {
        if(_patriarch != null) return _patriarch;
        
        EscherAggregate agg = getDrawingEscherAggregate();
        if(agg == null) return null;


        _patriarch = new HSSFPatriarch(this, agg);
        agg.setPatriarch(_patriarch);


        // Have it process the records into high level objects
        //  as best it can do (this step may eat anything
        //  that isn't supported, you were warned...)
        agg.convertRecordsToUserModel();


        // Return what we could cope with
        return _patriarch;
    }

View Full Code Here

        }


        //check if the cloned sheet has drawings
        int aggLoc = sheet.aggregateDrawingRecords(drawingManager, false);
        if(aggLoc != -1) {
            EscherAggregate agg = (EscherAggregate) sheet.findFirstRecordBySid(EscherAggregate.sid);
            EscherContainerRecord escherContainer = agg.getEscherContainer();
            if (escherContainer == null) {
                return;
            }


            EscherDggRecord dgg = drawingManager.getDgg();

View Full Code Here

      return new HSSFPictureData(blipRecord);
    }


    @Override
    void afterInsert(HSSFPatriarch patriarch) {
        EscherAggregate agg = patriarch._getBoundAggregate();
        agg.associateShapeToObjRecord(getEscherContainer().getChildById(EscherClientDataRecord.RECORD_ID), getObjRecord());
        EscherBSERecord bse =
                patriarch.getSheet().getWorkbook().getWorkbook().getBSERecord(getPictureIndex());
        bse.setRef(bse.getRef() + 1);
    }

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     * @param patriarch - copy all the shapes from this patriarch to new one
     * @param sheet where must be located new patriarch
     * @return new patriarch with copies of all shapes from the existing patriarch
     */
    static HSSFPatriarch createPatriarch(HSSFPatriarch patriarch, HSSFSheet sheet){
        HSSFPatriarch newPatriarch = new HSSFPatriarch(sheet, new EscherAggregate(true));
        newPatriarch.afterCreate();
        for (HSSFShape shape: patriarch.getChildren()){
            HSSFShape newShape;
            if (shape instanceof HSSFShapeGroup){
                newShape = ((HSSFShapeGroup)shape).cloneShape(newPatriarch);

View Full Code Here

     * @param patriarch - copy all the shapes from this patriarch to new one
     * @param sheet where must be located new patriarch
     * @return new patriarch with copies of all shapes from the existing patriarch
     */
    static HSSFPatriarch createPatriarch(HSSFPatriarch patriarch, HSSFSheet sheet){
        HSSFPatriarch newPatriarch = new HSSFPatriarch(sheet, new EscherAggregate(true));
        newPatriarch.afterCreate();
        for (HSSFShape shape: patriarch.getChildren()){
            HSSFShape newShape;
            if (shape instanceof HSSFShapeGroup){
                newShape = ((HSSFShapeGroup)shape).cloneShape(newPatriarch);

View Full Code Here

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