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)

        }


        //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();

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        wb = HSSFTestDataSamples.writeOutAndReadBack(wb);
        sheet1 = wb.getSheetAt(0);
        patriarch1 = sheet1.getDrawingPatriarch();


        EscherAggregate agg1 = HSSFTestHelper.getEscherAggregate(patriarch1);
        // last shape ID cached in EscherDgRecord
        EscherDgRecord dg1 =
                agg1.getEscherContainer().getChildById(EscherDgRecord.RECORD_ID);
        assertEquals(1026, dg1.getLastMSOSPID());


        // iterate over shapes and check shapeId
        EscherContainerRecord spgrContainer =
                agg1.getEscherContainer().getChildContainers().get(0);
        // root spContainer + 2 spContainers for shapes
        assertEquals(3, spgrContainer.getChildRecords().size());


        EscherSpRecord sp0 =
                ((EscherContainerRecord) spgrContainer.getChild(0)).getChildById(EscherSpRecord.RECORD_ID);

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        HSSFWorkbook wb = new HSSFWorkbook();
        try {
            HSSFSheet sheet = wb.createSheet();
            HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
    
            EscherAggregate aggregate = HSSFTestHelper.getEscherAggregate(patriarch);
            EscherDgRecord dgRecord = (EscherDgRecord) aggregate.getEscherRecord(0).getChild(0);
            assertEquals(dgRecord.getNumShapes(), 1);
        } finally {
            wb.close();
        }
    }

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        HSSFPatriarch patriarch = sheet.createDrawingPatriarch();


        HSSFSimpleShape shape = patriarch.createSimpleShape(new HSSFClientAnchor());
        shape.setShapeType(HSSFSimpleShape.OBJECT_TYPE_RECTANGLE);


        EscherAggregate agg = HSSFTestHelper.getEscherAggregate(patriarch);
        assertEquals(agg.getShapeToObjMapping().size(), 2);


        wb = HSSFTestDataSamples.writeOutAndReadBack(wb);
        sheet = wb.getSheetAt(0);
        patriarch = sheet.getDrawingPatriarch();


        shape = (HSSFSimpleShape) patriarch.getChildren().get(0);


        agg = HSSFTestHelper.getEscherAggregate(patriarch);
        assertEquals(agg.getShapeToObjMapping().size(), 2);


        shape.setString(new HSSFRichTextString("string1"));
        assertEquals(shape.getString().getString(), "string1");


        assertNotNull(HSSFTestHelper.getEscherContainer(shape).getChildById(EscherTextboxRecord.RECORD_ID));
        assertEquals(agg.getShapeToObjMapping().size(), 2);


        wb = HSSFTestDataSamples.writeOutAndReadBack(wb);


        wb = HSSFTestDataSamples.writeOutAndReadBack(wb);
        sheet = wb.getSheetAt(0);
        patriarch = sheet.getDrawingPatriarch();


        shape = (HSSFSimpleShape) patriarch.getChildren().get(0);


        assertNotNull(HSSFTestHelper.getTextObjRecord(shape));
        assertEquals(shape.getString().getString(), "string1");
        assertNotNull(HSSFTestHelper.getEscherContainer(shape).getChildById(EscherTextboxRecord.RECORD_ID));
        assertEquals(agg.getShapeToObjMapping().size(), 2);
    }

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        patriarch.createSimpleShape(new HSSFClientAnchor());
        patriarch.createSimpleShape(new HSSFClientAnchor());
        patriarch.createCellComment(new HSSFClientAnchor());


        EscherAggregate agg = HSSFTestHelper.getEscherAggregate(patriarch);


        assertEquals(agg.getShapeToObjMapping().size(), 6);
        assertEquals(agg.getTailRecords().size(), 1);
        assertEquals(patriarch.getChildren().size(), 3);


        patriarch.clear();


        assertEquals(agg.getShapeToObjMapping().size(), 0);
        assertEquals(agg.getTailRecords().size(), 0);
        assertEquals(patriarch.getChildren().size(), 0);


        wb = HSSFTestDataSamples.writeOutAndReadBack(wb);
        sheet = wb.getSheetAt(0);
        patriarch = sheet.getDrawingPatriarch();


        assertEquals(agg.getShapeToObjMapping().size(), 0);
        assertEquals(agg.getTailRecords().size(), 0);
        assertEquals(patriarch.getChildren().size(), 0);
    }

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      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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     * 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());

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            // 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;
    }

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            } else {
                _book.createDrawingGroup();
                dm = _book.getDrawingManager();
            }
        }
        EscherAggregate agg = (EscherAggregate) _sheet.findFirstRecordBySid(EscherAggregate.sid);
        if (null == agg) {
            int pos = _sheet.aggregateDrawingRecords(dm, false);
            if (-1 == pos) {
                if (createIfMissing) {
                    pos = _sheet.aggregateDrawingRecords(dm, true);

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        patriarch.createSimpleShape(new HSSFClientAnchor());
        patriarch.createSimpleShape(new HSSFClientAnchor());


        assertSame(patriarch, sh.getDrawingPatriarch());


        EscherAggregate agg = patriarch._getBoundAggregate();


        EscherDgRecord dg = agg.getEscherContainer().getChildById(EscherDgRecord.RECORD_ID);
        int lastId = dg.getLastMSOSPID();
        
        assertSame(patriarch, sh.createDrawingPatriarch());
        
        wb = HSSFTestDataSamples.writeOutAndReadBack(wb);

View Full Code Here

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