| /* |
| * ==================================================================== |
| * 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 |
| * limitations under the License. |
| * ==================================================================== |
| */ |
| |
| package org.apache.poi.examples.xslf; |
| |
| import java.io.BufferedReader; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.OutputStream; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.Files; |
| import java.nio.file.Paths; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.poi.ooxml.POIXMLDocumentPart; |
| import org.apache.poi.ss.util.CellRangeAddress; |
| import org.apache.poi.xddf.usermodel.chart.XDDFChartData; |
| import org.apache.poi.xddf.usermodel.chart.XDDFDataSource; |
| import org.apache.poi.xddf.usermodel.chart.XDDFDataSourcesFactory; |
| import org.apache.poi.xddf.usermodel.chart.XDDFNumericalDataSource; |
| import org.apache.poi.xddf.usermodel.chart.XDDFPieChartData; |
| import org.apache.poi.xslf.usermodel.XMLSlideShow; |
| import org.apache.poi.xslf.usermodel.XSLFChart; |
| import org.apache.poi.xslf.usermodel.XSLFSlide; |
| |
| /** |
| * Build a pie chart from a template pptx |
| */ |
| @SuppressWarnings({"java:S106","java:S4823","java:S1192"}) |
| public final class PieChartDemo { |
| private PieChartDemo() {} |
| |
| private static void usage(){ |
| System.out.println("Usage: PieChartDemo <pie-chart-template.pptx> <pie-chart-data.txt>"); |
| System.out.println(" pie-chart-template.pptx template with a pie chart"); |
| System.out.println(" pie-chart-data.txt the model to set. First line is chart title, " + |
| "then go pairs {axis-label value}"); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| if(args.length < 2) { |
| usage(); |
| return; |
| } |
| |
| try (FileInputStream argIS = new FileInputStream(args[0]); |
| BufferedReader modelReader = Files.newBufferedReader(Paths.get(args[1]), StandardCharsets.UTF_8)) { |
| String chartTitle = modelReader.readLine(); // first line is chart title |
| |
| try (XMLSlideShow pptx = new XMLSlideShow(argIS)) { |
| XSLFSlide slide = pptx.getSlides().get(0); |
| |
| // find chart in the slide |
| XSLFChart chart = null; |
| for (POIXMLDocumentPart part : slide.getRelations()) { |
| if (part instanceof XSLFChart) { |
| chart = (XSLFChart) part; |
| break; |
| } |
| } |
| |
| if(chart == null) { |
| throw new IllegalStateException("chart not found in the template"); |
| } |
| |
| // Series Text |
| List<XDDFChartData> series = chart.getChartSeries(); |
| XDDFPieChartData pie = (XDDFPieChartData) series.get(0); |
| |
| // Category Axis Data |
| List<String> listCategories = new ArrayList<>(3); |
| |
| // Values |
| List<Double> listValues = new ArrayList<>(3); |
| |
| // set model |
| String ln; |
| while((ln = modelReader.readLine()) != null){ |
| String[] vals = ln.split("\\s+"); |
| listCategories.add(vals[0]); |
| listValues.add(Double.valueOf(vals[1])); |
| } |
| String[] categories = listCategories.toArray(new String[0]); |
| Double[] values = listValues.toArray(new Double[0]); |
| |
| final int numOfPoints = categories.length; |
| final String categoryDataRange = chart.formatRange(new CellRangeAddress(1, numOfPoints, 0, 0)); |
| final String valuesDataRange = chart.formatRange(new CellRangeAddress(1, numOfPoints, 1, 1)); |
| final XDDFDataSource<?> categoriesData = XDDFDataSourcesFactory.fromArray(categories, categoryDataRange); |
| final XDDFNumericalDataSource<? extends Number> valuesData = XDDFDataSourcesFactory.fromArray(values, valuesDataRange); |
| |
| XDDFPieChartData.Series firstSeries = (XDDFPieChartData.Series) pie.getSeries(0); |
| firstSeries.replaceData(categoriesData, valuesData); |
| firstSeries.setTitle(chartTitle, chart.setSheetTitle(chartTitle, 0)); |
| firstSeries.setExplosion(25L); |
| firstSeries.getDataPoint(1).setExplosion(35L); |
| chart.plot(pie); |
| |
| // save the result |
| try (OutputStream out = new FileOutputStream("pie-chart-demo-output.pptx")) { |
| pptx.write(out); |
| } |
| } |
| } |
| } |
| } |