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/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
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package org.apache.poi.xddf.usermodel.chart;
import static org.apache.poi.ooxml.POIXMLTypeLoader.DEFAULT_XML_OPTIONS;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.function.Function;
import javax.xml.namespace.QName;
import org.apache.poi.ooxml.POIXMLDocument;
import org.apache.poi.ooxml.POIXMLDocumentPart;
import org.apache.poi.ooxml.POIXMLException;
import org.apache.poi.ooxml.POIXMLFactory;
import org.apache.poi.ooxml.POIXMLRelation;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.openxml4j.exceptions.NotOfficeXmlFileException;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.openxml4j.opc.PackageRelationship;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.CellReference;
import org.apache.poi.util.Beta;
import org.apache.poi.util.Internal;
import org.apache.poi.xddf.usermodel.XDDFShapeProperties;
import org.apache.poi.xddf.usermodel.text.TextContainer;
import org.apache.poi.xddf.usermodel.text.XDDFTextBody;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFTable;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.xmlbeans.XmlException;
import org.apache.xmlbeans.XmlOptions;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTBarChart;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTBoolean;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTCatAx;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTChart;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTChartSpace;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTDateAx;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTLineChart;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTPieChart;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTPlotArea;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTRadarChart;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTScatterChart;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTSerAx;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTSurface;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTTitle;
import org.openxmlformats.schemas.drawingml.x2006.chart.CTValAx;
import org.openxmlformats.schemas.drawingml.x2006.chart.ChartSpaceDocument;
import org.openxmlformats.schemas.drawingml.x2006.main.CTShapeProperties;
import org.openxmlformats.schemas.drawingml.x2006.main.CTTextCharacterProperties;
import org.openxmlformats.schemas.drawingml.x2006.main.CTTextParagraphProperties;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTable;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTableColumn;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTableColumns;
@Beta
public abstract class XDDFChart extends POIXMLDocumentPart implements TextContainer {
/**
* default width of chart in emu
*/
public static final int DEFAULT_WIDTH = 500000;
/**
* default height of chart in emu
*/
public static final int DEFAULT_HEIGHT = 500000;
/**
* default x-coordinate of chart in emu
*/
public static final int DEFAULT_X = 10;
/**
* default y-coordinate value of chart in emu
*/
public static final int DEFAULT_Y = 10;
/**
* Underlying workbook
*/
private XSSFWorkbook workbook;
private int chartIndex = 0;
private POIXMLDocumentPart documentPart = null;
protected List axes = new ArrayList<>();
/**
* Root element of the Chart part
*/
protected final CTChartSpace chartSpace;
/**
* Chart element in the chart space
*/
protected final CTChart chart;
/**
* Construct a chart.
*/
protected XDDFChart() {
super();
chartSpace = CTChartSpace.Factory.newInstance();
chart = chartSpace.addNewChart();
chart.addNewPlotArea();
}
/**
* Construct a DrawingML chart from a package part.
*
* @param part
* the package part holding the chart data, the content type must
* be
* application/vnd.openxmlformats-officedocument.drawingml.chart+xml
* @since POI 3.14-Beta1
*/
protected XDDFChart(PackagePart part) throws IOException, XmlException {
super(part);
chartSpace = ChartSpaceDocument.Factory.parse(part.getInputStream(), DEFAULT_XML_OPTIONS).getChartSpace();
chart = chartSpace.getChart();
}
/**
* Return the underlying CTChartSpace bean, the root element of the Chart
* part.
*
* @return the underlying CTChartSpace bean
*/
@Internal
public CTChartSpace getCTChartSpace() {
return chartSpace;
}
/**
* Return the underlying CTChart bean, within the Chart Space
*
* @return the underlying CTChart bean
*/
@Internal
public CTChart getCTChart() {
return chart;
}
/**
* Return the underlying CTPlotArea bean, within the Chart
*
* @return the underlying CTPlotArea bean
*/
@Internal
protected CTPlotArea getCTPlotArea() {
return chart.getPlotArea();
}
/**
* @return true if only visible cells will be present on the chart, false
* otherwise
*/
public boolean isPlotOnlyVisibleCells() {
if (chart.isSetPlotVisOnly()) {
return chart.getPlotVisOnly().getVal();
} else {
return false;
}
}
/**
* @param only
* a flag specifying if only visible cells should be present on
* the chart
*/
public void setPlotOnlyVisibleCells(boolean only) {
if (!chart.isSetPlotVisOnly()) {
chart.setPlotVisOnly(CTBoolean.Factory.newInstance());
}
chart.getPlotVisOnly().setVal(only);
}
public void setFloor(int thickness) {
if (!chart.isSetFloor()) {
chart.setFloor(CTSurface.Factory.newInstance());
}
chart.getFloor().getThickness().setVal(thickness);
}
public void setBackWall(int thickness) {
if (!chart.isSetBackWall()) {
chart.setBackWall(CTSurface.Factory.newInstance());
}
chart.getBackWall().getThickness().setVal(thickness);
}
public void setSideWall(int thickness) {
if (!chart.isSetSideWall()) {
chart.setSideWall(CTSurface.Factory.newInstance());
}
chart.getSideWall().getThickness().setVal(thickness);
}
public void setAutoTitleDeleted(boolean deleted) {
if (!chart.isSetAutoTitleDeleted()) {
chart.setAutoTitleDeleted(CTBoolean.Factory.newInstance());
}
chart.getAutoTitleDeleted().setVal(deleted);
}
/**
* @since 4.0.1
*
*/
public void displayBlanksAs(DisplayBlanks as) {
if (as == null){
if (chart.isSetDispBlanksAs()) {
chart.unsetDispBlanksAs();
}
} else {
if (chart.isSetDispBlanksAs()) {
chart.getDispBlanksAs().setVal(as.underlying);
} else {
chart.addNewDispBlanksAs().setVal(as.underlying);
}
}
}
/**
* @since 4.0.1
*/
public Boolean getTitleOverlay() {
if (chart.isSetTitle()) {
CTTitle title = chart.getTitle();
if (title.isSetOverlay()) {
return title.getOverlay().getVal();
}
}
return null;
}
/**
* @since 4.0.1
*/
public void setTitleOverlay(boolean overlay) {
if (!chart.isSetTitle()) {
chart.addNewTitle();
}
new XDDFTitle(this, chart.getTitle()).setOverlay(overlay);
}
/**
* Sets the title text as a static string.
*
* @param text
* to use as new title
* @since 4.0.1
*/
public void setTitleText(String text) {
if (!chart.isSetTitle()) {
chart.addNewTitle();
}
new XDDFTitle(this, chart.getTitle()).setText(text);
}
/**
* @since 4.0.1
*/
public XDDFTitle getTitle() {
if (chart.isSetTitle()) {
return new XDDFTitle(this, chart.getTitle());
} else {
return null;
}
}
/**
* Get the chart title body if there is one, i.e. title is set and is not a
* formula.
*
* @return text body or null, if title is a formula or no title is set.
*/
@Beta
public XDDFTextBody getFormattedTitle() {
if (!chart.isSetTitle()) {
return null;
}
return new XDDFTitle(this, chart.getTitle()).getBody();
}
@Override
public Optional findDefinedParagraphProperty(Function isSet,
Function getter) {
// TODO Auto-generated method stub
return Optional.empty();
}
@Override
public Optional findDefinedRunProperty(Function isSet,
Function getter) {
// TODO Auto-generated method stub
return Optional.empty();
}
public XDDFShapeProperties getOrAddShapeProperties() {
CTPlotArea plotArea = getCTPlotArea();
CTShapeProperties properties;
if (plotArea.isSetSpPr()) {
properties = plotArea.getSpPr();
} else {
properties = plotArea.addNewSpPr();
}
return new XDDFShapeProperties(properties);
}
public void deleteShapeProperties() {
if (getCTPlotArea().isSetSpPr()) {
getCTPlotArea().unsetSpPr();
}
}
public XDDFChartLegend getOrAddLegend() {
return new XDDFChartLegend(chart);
}
public void deleteLegend() {
if (chart.isSetLegend()) {
chart.unsetLegend();
}
}
public XDDFManualLayout getOrAddManualLayout() {
return new XDDFManualLayout(chart.getPlotArea());
}
public void plot(XDDFChartData data) {
XSSFSheet sheet = getSheet();
for (XDDFChartData.Series series : data.getSeries()) {
series.plot();
fillSheet(sheet, series.getCategoryData(), series.getValuesData());
}
}
public List getChartSeries() {
List series = new LinkedList<>();
CTPlotArea plotArea = getCTPlotArea();
Map categories = getCategoryAxes();
Map values = getValueAxes();
for (int i = 0; i < plotArea.sizeOfBarChartArray(); i++) {
CTBarChart barChart = plotArea.getBarChartArray(i);
series.add(new XDDFBarChartData(barChart, categories, values));
}
for (int i = 0; i < plotArea.sizeOfLineChartArray(); i++) {
CTLineChart lineChart = plotArea.getLineChartArray(i);
series.add(new XDDFLineChartData(lineChart, categories, values));
}
for (int i = 0; i < plotArea.sizeOfPieChartArray(); i++) {
CTPieChart pieChart = plotArea.getPieChartArray(i);
series.add(new XDDFPieChartData(pieChart));
}
for (int i = 0; i < plotArea.sizeOfRadarChartArray(); i++) {
CTRadarChart radarChart = plotArea.getRadarChartArray(i);
series.add(new XDDFRadarChartData(radarChart, categories, values));
}
for (int i = 0; i < plotArea.sizeOfScatterChartArray(); i++) {
CTScatterChart scatterChart = plotArea.getScatterChartArray(i);
series.add(new XDDFScatterChartData(scatterChart, categories, values));
}
// TODO repeat above code for all kind of charts
return series;
}
private Map getCategoryAxes() {
CTPlotArea plotArea = getCTPlotArea();
int sizeOfArray = plotArea.sizeOfCatAxArray();
Map axes = new HashMap<>(sizeOfArray);
for (int i = 0; i < sizeOfArray; i++) {
CTCatAx category = plotArea.getCatAxArray(i);
axes.put(category.getAxId().getVal(), new XDDFCategoryAxis(category));
}
return axes;
}
private Map getValueAxes() {
CTPlotArea plotArea = getCTPlotArea();
int sizeOfArray = plotArea.sizeOfValAxArray();
Map axes = new HashMap<>(sizeOfArray);
for (int i = 0; i < sizeOfArray; i++) {
CTValAx values = plotArea.getValAxArray(i);
axes.put(values.getAxId().getVal(), new XDDFValueAxis(values));
}
return axes;
}
public XDDFValueAxis createValueAxis(AxisPosition pos) {
XDDFValueAxis valueAxis = new XDDFValueAxis(chart.getPlotArea(), pos);
if (axes.size() == 1) {
XDDFChartAxis axis = axes.get(0);
axis.crossAxis(valueAxis);
valueAxis.crossAxis(axis);
}
axes.add(valueAxis);
return valueAxis;
}
public XDDFCategoryAxis createCategoryAxis(AxisPosition pos) {
XDDFCategoryAxis categoryAxis = new XDDFCategoryAxis(chart.getPlotArea(), pos);
if (axes.size() == 1) {
XDDFChartAxis axis = axes.get(0);
axis.crossAxis(categoryAxis);
categoryAxis.crossAxis(axis);
}
axes.add(categoryAxis);
return categoryAxis;
}
public XDDFDateAxis createDateAxis(AxisPosition pos) {
XDDFDateAxis dateAxis = new XDDFDateAxis(chart.getPlotArea(), pos);
if (axes.size() == 1) {
XDDFChartAxis axis = axes.get(0);
axis.crossAxis(dateAxis);
dateAxis.crossAxis(axis);
}
axes.add(dateAxis);
return dateAxis;
}
public XDDFChartData createData(ChartTypes type, XDDFChartAxis category, XDDFValueAxis values) {
Map categories = Collections.singletonMap(category.getId(), category);
Map mapValues = Collections.singletonMap(values.getId(), values);
final CTPlotArea plotArea = getCTPlotArea();
switch (type) {
case BAR:
return new XDDFBarChartData(plotArea.addNewBarChart(), categories, mapValues);
case LINE:
return new XDDFLineChartData(plotArea.addNewLineChart(), categories, mapValues);
case PIE:
return new XDDFPieChartData(plotArea.addNewPieChart());
case RADAR:
return new XDDFRadarChartData(plotArea.addNewRadarChart(), categories, mapValues);
case SCATTER:
return new XDDFScatterChartData(plotArea.addNewScatterChart(), categories, mapValues);
default:
return null;
}
}
public List getAxes() {
if (axes.isEmpty() && hasAxes()) {
parseAxes();
}
return axes;
}
private boolean hasAxes() {
CTPlotArea ctPlotArea = chart.getPlotArea();
int totalAxisCount = ctPlotArea.sizeOfValAxArray() + ctPlotArea.sizeOfCatAxArray() + ctPlotArea
.sizeOfDateAxArray() + ctPlotArea.sizeOfSerAxArray();
return totalAxisCount > 0;
}
private void parseAxes() {
for (CTCatAx catAx : chart.getPlotArea().getCatAxArray()) {
axes.add(new XDDFCategoryAxis(catAx));
}
for (CTDateAx dateAx : chart.getPlotArea().getDateAxArray()) {
axes.add(new XDDFDateAxis(dateAx));
}
for (CTSerAx serAx : chart.getPlotArea().getSerAxArray()) {
axes.add(new XDDFSeriesAxis(serAx));
}
for (CTValAx valAx : chart.getPlotArea().getValAxArray()) {
axes.add(new XDDFValueAxis(valAx));
}
}
/**
* Set value range (basic Axis Options)
*
* @param axisIndex
* 0 - primary axis, 1 - secondary axis
* @param minimum
* minimum value; Double.NaN - automatic; null - no change
* @param maximum
* maximum value; Double.NaN - automatic; null - no change
* @param majorUnit
* major unit value; Double.NaN - automatic; null - no change
* @param minorUnit
* minor unit value; Double.NaN - automatic; null - no change
*/
public void setValueRange(int axisIndex, Double minimum, Double maximum, Double majorUnit, Double minorUnit) {
XDDFChartAxis axis = getAxes().get(axisIndex);
if (axis == null) {
return;
}
if (minimum != null) {
axis.setMinimum(minimum);
}
if (maximum != null) {
axis.setMaximum(maximum);
}
if (majorUnit != null) {
axis.setMajorUnit(majorUnit);
}
if (minorUnit != null) {
axis.setMinorUnit(minorUnit);
}
}
/**
* method to create relationship with embedded part for example writing xlsx
* file stream into output stream
*
* @param chartRelation
* relationship object
* @param chartFactory
* ChartFactory object
* @param chartIndex
* index used to suffix on file
* @return return relation part which used to write relation in .rels file
* and get relation id
* @since POI 4.0.0
*/
public PackageRelationship createRelationshipInChart(POIXMLRelation chartRelation, POIXMLFactory chartFactory,
int chartIndex) {
documentPart = createRelationship(chartRelation, chartFactory, chartIndex, true).getDocumentPart();
return this.addRelation(null, chartRelation, documentPart).getRelationship();
}
/**
* if embedded part was null then create new part
*
* @param chartRelation
* chart relation object
* @param chartWorkbookRelation
* chart workbook relation object
* @param chartFactory
* factory object of POIXMLFactory (XWPFFactory/XSLFFactory)
* @return return the new package part
* @throws InvalidFormatException
* @since POI 4.0.0
*/
private PackagePart createWorksheetPart(POIXMLRelation chartRelation, POIXMLRelation chartWorkbookRelation,
POIXMLFactory chartFactory) throws InvalidFormatException {
PackageRelationship xlsx = createRelationshipInChart(chartWorkbookRelation, chartFactory, chartIndex);
this.setExternalId(xlsx.getId());
return getTargetPart(xlsx);
}
/**
* this method write the XSSFWorkbook object data into embedded excel file
*
* @param workbook
* XSSFworkbook object
* @throws IOException
* @throws InvalidFormatException
* @since POI 4.0.0
*/
public void saveWorkbook(XSSFWorkbook workbook) throws IOException, InvalidFormatException {
PackagePart worksheetPart = getWorksheetPart();
if (worksheetPart == null) {
POIXMLRelation chartRelation = getChartRelation();
POIXMLRelation chartWorkbookRelation = getChartWorkbookRelation();
POIXMLFactory chartFactory = getChartFactory();
if (chartRelation != null && chartWorkbookRelation != null && chartFactory != null) {
worksheetPart = createWorksheetPart(chartRelation, chartWorkbookRelation, chartFactory);
} else {
throw new InvalidFormatException("unable to determine chart relations");
}
}
try (OutputStream xlsOut = worksheetPart.getOutputStream()) {
setWorksheetPartCommitted();
workbook.write(xlsOut);
}
}
/**
*
* @return the chart relation in the implementing subclass.
* @since POI 4.0.0
*/
protected abstract POIXMLRelation getChartRelation();
/**
*
* @return the chart workbook relation in the implementing subclass.
* @since POI 4.0.0
*/
protected abstract POIXMLRelation getChartWorkbookRelation();
/**
*
* @return the chart factory in the implementing subclass.
* @since POI 4.0.0
*/
protected abstract POIXMLFactory getChartFactory();
/**
* this method writes the data into sheet
*
* @param sheet
* sheet of embedded excel
* @param categoryData
* category values
* @param valuesData
* data values
* @since POI 4.0.0
*/
protected void fillSheet(XSSFSheet sheet, XDDFDataSource categoryData, XDDFNumericalDataSource valuesData) {
int numOfPoints = categoryData.getPointCount();
for (int i = 0; i < numOfPoints; i++) {
XSSFRow row = this.getRow(sheet, i + 1); // first row is for title
this.getCell(row, categoryData.getColIndex()).setCellValue(categoryData.getPointAt(i).toString());
this.getCell(row, valuesData.getColIndex()).setCellValue(valuesData.getPointAt(i).doubleValue());
}
}
/**
* this method return row on given index if row is null then create new row
*
* @param sheet
* current sheet object
* @param index
* index of current row
* @return this method return sheet row on given index
* @since POI 4.0.0
*/
private XSSFRow getRow(XSSFSheet sheet, int index) {
if (sheet.getRow(index) != null) {
return sheet.getRow(index);
} else {
return sheet.createRow(index);
}
}
/**
* this method return cell on given index if cell is null then create new
* cell
*
* @param row
* current row object
* @param index
* index of current cell
* @return this method return sheet cell on given index
* @since POI 4.0.0
*/
private XSSFCell getCell(XSSFRow row, int index) {
if (row.getCell(index) != null) {
return row.getCell(index);
} else {
return row.createCell(index);
}
}
/**
* import content from other chart to created chart
*
* @param other
* chart object
* @since POI 4.0.0
*/
public void importContent(XDDFChart other) {
this.chart.set(other.chart);
}
/**
* save chart xml
*/
@Override
protected void commit() throws IOException {
XmlOptions xmlOptions = new XmlOptions(DEFAULT_XML_OPTIONS);
xmlOptions.setSaveSyntheticDocumentElement(
new QName(CTChartSpace.type.getName().getNamespaceURI(), "chartSpace", "c"));
if (workbook != null) {
try {
saveWorkbook(workbook);
} catch (InvalidFormatException e) {
throw new POIXMLException(e);
}
}
PackagePart part = getPackagePart();
try (OutputStream out = part.getOutputStream()) {
chartSpace.save(out, xmlOptions);
}
}
/**
* set sheet title in excel file
*
* @param title
* title of sheet
* @param column
* column index
* @return return cell reference
* @since POI 4.0.0
*/
public CellReference setSheetTitle(String title, int column) {
XSSFSheet sheet = getSheet();
XSSFRow row = this.getRow(sheet, 0);
XSSFCell cell = this.getCell(row, column);
cell.setCellValue(title);
CTTable ctTable = this.getSheetTable(sheet);
this.updateSheetTable(ctTable, title, column);
return new CellReference(sheet.getSheetName(), 0, column, true, true);
}
/**
* this method will check whether sheet have table
* in case table size zero then create new table and add table columns element
* @param sheet
* @return table object
*/
private CTTable getSheetTable(XSSFSheet sheet) {
if(sheet.getTables().size() == 0)
{
XSSFTable newTable = sheet.createTable(null);
newTable.getCTTable().addNewTableColumns();
sheet.getTables().add(newTable);
}
return sheet.getTables().get(0).getCTTable();
}
/**
* this method update column header of sheet into table
*
* @param ctTable
* xssf table object
* @param title
* title of column
* @param index
* index of column
*/
private void updateSheetTable(CTTable ctTable, String title, int index) {
CTTableColumns tableColumnList = ctTable.getTableColumns();
CTTableColumn column = null;
int columnCount = tableColumnList.getTableColumnList().size()-1;
for( int i = columnCount; i < index; i++) {
column = tableColumnList.addNewTableColumn();
column.setId(i);
}
column = tableColumnList.getTableColumnArray(index);
column.setName(title);
}
/**
* @param range
* @return
* @since POI 4.0.0
*/
public String formatRange(CellRangeAddress range) {
final XSSFSheet sheet = getSheet();
return (sheet == null) ? null : range.formatAsString(sheet.getSheetName(), true);
}
/**
* get sheet object of embedded excel file
*
* @return excel sheet object
* @since POI 4.0.0
*/
private XSSFSheet getSheet() {
XSSFSheet sheet = null;
try {
sheet = getWorkbook().getSheetAt(0);
} catch (InvalidFormatException | IOException ife) {
}
return sheet;
}
/**
* this method is used to get worksheet part if call is from saveworkbook
* method then check isCommitted isCommitted variable shows that we are
* writing xssfworkbook object into output stream of embedded part
*
* @return returns the packagepart of embedded file
* @throws InvalidFormatException
* @since POI 4.0.0
*/
private PackagePart getWorksheetPart() throws InvalidFormatException {
for (RelationPart part : getRelationParts()) {
if (POIXMLDocument.PACK_OBJECT_REL_TYPE.equals(part.getRelationship().getRelationshipType())) {
return getTargetPart(part.getRelationship());
}
}
return null;
}
private void setWorksheetPartCommitted() throws InvalidFormatException {
for (RelationPart part : getRelationParts()) {
if (POIXMLDocument.PACK_OBJECT_REL_TYPE.equals(part.getRelationship().getRelationshipType())) {
part.getDocumentPart().setCommited(true);
break;
}
}
}
/**
* @return returns the workbook object of embedded excel file
* @throws IOException
* @throws InvalidFormatException
* @since POI 4.0.0
*/
public XSSFWorkbook getWorkbook() throws IOException, InvalidFormatException {
if (workbook == null) {
try {
PackagePart worksheetPart = getWorksheetPart();
if (worksheetPart == null) {
workbook = new XSSFWorkbook();
workbook.createSheet();
} else {
workbook = new XSSFWorkbook(worksheetPart.getInputStream());
}
} catch (NotOfficeXmlFileException e) {
workbook = new XSSFWorkbook();
workbook.createSheet();
}
}
return workbook;
}
/**
* while reading chart from template file then we need to parse and store
* embedded excel file in chart object show that we can modify value
* according to use
*
* @param workbook
* workbook object which we read from chart embedded part
* @since POI 4.0.0
*/
public void setWorkbook(XSSFWorkbook workbook) {
this.workbook = workbook;
}
/**
* set the relation id of embedded excel relation id into external data
* relation tag
*
* @param id
* relation id of embedded excel relation id into external data
* relation tag
* @since POI 4.0.0
*/
public void setExternalId(String id) {
getCTChartSpace().addNewExternalData().setId(id);
}
/**
* @return method return chart index
* @since POI 4.0.0
*/
protected int getChartIndex() {
return chartIndex;
}
/**
* set chart index which can be use for relation part
*
* @param chartIndex
* chart index which can be use for relation part
*/
public void setChartIndex(int chartIndex) {
this.chartIndex = chartIndex;
}
}