132 lines
4.8 KiB
Java
132 lines
4.8 KiB
Java
/*
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* ====================================================================
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*/
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package org.apache.poi.xslf.usermodel;
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import java.io.OutputStream;
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import java.util.LinkedHashMap;
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import java.util.Map;
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import junit.framework.TestCase;
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import org.apache.poi.POIXMLDocumentPart;
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import org.apache.poi.ss.util.CellRangeAddress;
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import org.apache.poi.ss.util.CellReference;
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import org.apache.poi.xslf.XSLFTestDataSamples;
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import org.apache.poi.xssf.usermodel.XSSFRow;
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import org.apache.poi.xssf.usermodel.XSSFSheet;
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import org.apache.poi.xssf.usermodel.XSSFWorkbook;
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import org.openxmlformats.schemas.drawingml.x2006.chart.*;
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/**
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* @author Yegor Kozlov
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*/
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public class TestXSLFChart extends TestCase {
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/**
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* a modified version from POI-examples
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*/
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public void testFillChartTemplate() throws Exception {
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String chartTitle = "Apache POI"; // first line is chart title
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XMLSlideShow pptx = XSLFTestDataSamples.openSampleDocument("pie-chart.pptx");
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XSLFSlide slide = pptx.getSlides()[0];
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// find chart in the slide
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XSLFChart chart = null;
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for(POIXMLDocumentPart part : slide.getRelations()){
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if(part instanceof XSLFChart){
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chart = (XSLFChart) part;
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break;
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}
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}
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if(chart == null) throw new IllegalStateException("chart not found in the template");
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// embedded Excel workbook that holds the chart data
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POIXMLDocumentPart xlsPart = chart.getRelations().get(0);
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XSSFWorkbook wb = new XSSFWorkbook();
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XSSFSheet sheet = wb.createSheet();
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CTChart ctChart = chart.getCTChart();
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CTPlotArea plotArea = ctChart.getPlotArea();
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CTPieChart pieChart = plotArea.getPieChartArray(0);
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//Pie Chart Series
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CTPieSer ser = pieChart.getSerArray(0);
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// Series Text
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CTSerTx tx = ser.getTx();
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tx.getStrRef().getStrCache().getPtArray(0).setV(chartTitle);
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sheet.createRow(0).createCell(1).setCellValue(chartTitle);
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String titleRef = new CellReference(sheet.getSheetName(), 0, 1, true, true).formatAsString();
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tx.getStrRef().setF(titleRef);
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// Category Axis Data
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CTAxDataSource cat = ser.getCat();
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CTStrData strData = cat.getStrRef().getStrCache();
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// Values
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CTNumDataSource valSrc = ser.getVal();
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CTNumData numData = valSrc.getNumRef().getNumCache();
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strData.setPtArray(null); // unset old axis text
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numData.setPtArray(null); // unset old values
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Map<String, Double> pieModel = new LinkedHashMap<String, Double>();
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pieModel.put("First", 1.0);
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pieModel.put("Second", 3.0);
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pieModel.put("Third", 4.0);
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// set model
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int idx = 0;
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int rownum = 1;
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for(String key : pieModel.keySet()){
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double val = pieModel.get(key);
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CTNumVal numVal = numData.addNewPt();
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numVal.setIdx(idx);
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numVal.setV("" + val);
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CTStrVal sVal = strData.addNewPt();
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sVal.setIdx(idx);
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sVal.setV(key);
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idx++;
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XSSFRow row = sheet.createRow(rownum++);
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row.createCell(0).setCellValue(key);
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row.createCell(1).setCellValue(val);
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}
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numData.getPtCount().setVal(idx);
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strData.getPtCount().setVal(idx);
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String numDataRange = new CellRangeAddress(1, rownum-1, 1, 1).formatAsString(sheet.getSheetName(), true);
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valSrc.getNumRef().setF(numDataRange);
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String axisDataRange = new CellRangeAddress(1, rownum-1, 0, 0).formatAsString(sheet.getSheetName(), true);
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cat.getStrRef().setF(axisDataRange);
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// updated the embedded workbook with the data
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OutputStream xlsOut = xlsPart.getPackagePart().getOutputStream();
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wb.write(xlsOut);
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xlsOut.close();
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}
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} |