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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
* limitations under the License.
* ====================================================================
*/
package org.apache.poi.examples.xslf;
import java.awt.geom.Rectangle2D;
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.ss.util.CellRangeAddress;
import org.apache.poi.util.Units;
import org.apache.poi.xddf.usermodel.chart.AxisCrossBetween;
import org.apache.poi.xddf.usermodel.chart.AxisCrosses;
import org.apache.poi.xddf.usermodel.chart.AxisPosition;
import org.apache.poi.xddf.usermodel.chart.AxisTickMark;
import org.apache.poi.xddf.usermodel.chart.BarDirection;
import org.apache.poi.xddf.usermodel.chart.BarGrouping;
import org.apache.poi.xddf.usermodel.chart.ChartTypes;
import org.apache.poi.xddf.usermodel.chart.LegendPosition;
import org.apache.poi.xddf.usermodel.chart.XDDFBarChartData;
import org.apache.poi.xddf.usermodel.chart.XDDFChartAxis;
import org.apache.poi.xddf.usermodel.chart.XDDFChartLegend;
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.XDDFValueAxis;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFChart;
import org.apache.poi.xslf.usermodel.XSLFGraphicFrame;
import org.apache.poi.xslf.usermodel.XSLFShape;
import org.apache.poi.xslf.usermodel.XSLFSlide;
/**
* Build a chart without reading template file
*/
@SuppressWarnings({"java:S106","java:S4823","java:S1192"})
public final class ChartFromScratch {
private ChartFromScratch() {}
private static void usage(){
System.out.println("Usage: ChartFromScratch ");
System.out.println(" bar-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 < 1) {
usage();
return;
}
try (BufferedReader modelReader = Files.newBufferedReader(Paths.get(args[0]), StandardCharsets.UTF_8)) {
String chartTitle = modelReader.readLine(); // first line is chart title
String seriesText = modelReader.readLine();
String[] series = seriesText == null ? new String[0] : seriesText.split(",");
// Category Axis Data
List listLanguages = new ArrayList<>(10);
// Values
List listCountries = new ArrayList<>(10);
List listSpeakers = new ArrayList<>(10);
// set model
String ln;
while((ln = modelReader.readLine()) != null) {
String[] vals = ln.split(",");
listCountries.add(Double.valueOf(vals[0]));
listSpeakers.add(Double.valueOf(vals[1]));
listLanguages.add(vals[2]);
}
String[] categories = listLanguages.toArray(new String[0]);
Double[] values1 = listCountries.toArray(new Double[0]);
Double[] values2 = listSpeakers.toArray(new Double[0]);
try (XMLSlideShow ppt = new XMLSlideShow()) {
createSlideWithChart(ppt, chartTitle, series, categories, values1, values2);
createSlideWithChart(ppt, chartTitle, series, categories, values1, values2);
createSlideWithChart(ppt, chartTitle, series, categories, values1, values2);
// save the result
try (OutputStream out = new FileOutputStream("chart-from-scratch.pptx")) {
ppt.write(out);
}
}
try (FileInputStream is = new FileInputStream("chart-from-scratch.pptx")) {
try (XMLSlideShow ppt = new XMLSlideShow(is)) {
for (XSLFSlide slide : ppt.getSlides()) {
for (XSLFShape shape : slide.getShapes()) {
if (shape instanceof XSLFGraphicFrame) {
XSLFGraphicFrame frame = (XSLFGraphicFrame) shape;
if (frame.hasChart()) {
System.out.println(frame.getChart().getTitleShape().getText());
}
}
}
}
}
}
}
System.out.println("Done");
}
private static void createSlideWithChart(XMLSlideShow ppt, String chartTitle, String[] series, String[] categories,
Double[] values1, Double[] values2) {
XSLFSlide slide = ppt.createSlide();
XSLFChart chart = ppt.createChart();
Rectangle2D rect2D = new java.awt.Rectangle(fromCM(1.5), fromCM(4), fromCM(22), fromCM(14));
slide.addChart(chart, rect2D);
setBarData(chart, chartTitle, series, categories, values1, values2);
}
private static int fromCM(double cm) {
return (int) (Math.rint(cm * Units.EMU_PER_CENTIMETER));
}
private static void setBarData(XSLFChart chart, String chartTitle, String[] series, String[] categories, Double[] values1, Double[] values2) {
// Use a category axis for the bottom axis.
XDDFChartAxis bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
bottomAxis.setTitle(series[2]);
XDDFValueAxis leftAxis = chart.createValueAxis(AxisPosition.LEFT);
leftAxis.setTitle(series[0]+","+series[1]);
leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
leftAxis.setMajorTickMark(AxisTickMark.OUT);
leftAxis.setCrossBetween(AxisCrossBetween.BETWEEN);
final int numOfPoints = categories.length;
final String categoryDataRange = chart.formatRange(new CellRangeAddress(1, numOfPoints, COLUMN_LANGUAGES, COLUMN_LANGUAGES));
final String valuesDataRange = chart.formatRange(new CellRangeAddress(1, numOfPoints, COLUMN_COUNTRIES, COLUMN_COUNTRIES));
final String valuesDataRange2 = chart.formatRange(new CellRangeAddress(1, numOfPoints, COLUMN_SPEAKERS, COLUMN_SPEAKERS));
final XDDFDataSource categoriesData = XDDFDataSourcesFactory.fromArray(categories, categoryDataRange, COLUMN_LANGUAGES);
final XDDFNumericalDataSource valuesData = XDDFDataSourcesFactory.fromArray(values1, valuesDataRange, COLUMN_COUNTRIES);
valuesData.setFormatCode("General");
values1[6] = 16.0; // if you ever want to change the underlying data, it has to be done before building the data source
final XDDFNumericalDataSource valuesData2 = XDDFDataSourcesFactory.fromArray(values2, valuesDataRange2, COLUMN_SPEAKERS);
valuesData2.setFormatCode("General");
XDDFBarChartData bar = (XDDFBarChartData) chart.createData(ChartTypes.BAR, bottomAxis, leftAxis);
bar.setBarGrouping(BarGrouping.CLUSTERED);
XDDFBarChartData.Series series1 = (XDDFBarChartData.Series) bar.addSeries(categoriesData, valuesData);
series1.setTitle(series[0], chart.setSheetTitle(series[COLUMN_COUNTRIES - 1], COLUMN_COUNTRIES));
XDDFBarChartData.Series series2 = (XDDFBarChartData.Series) bar.addSeries(categoriesData, valuesData2);
series2.setTitle(series[1], chart.setSheetTitle(series[COLUMN_SPEAKERS - 1], COLUMN_SPEAKERS));
bar.setVaryColors(true);
bar.setBarDirection(BarDirection.COL);
chart.plot(bar);
XDDFChartLegend legend = chart.getOrAddLegend();
legend.setPosition(LegendPosition.LEFT);
legend.setOverlay(false);
chart.setTitleText(chartTitle);
chart.setTitleOverlay(false);
chart.setAutoTitleDeleted(false);
}
private static final int COLUMN_LANGUAGES = 0;
private static final int COLUMN_COUNTRIES = 1;
private static final int COLUMN_SPEAKERS = 2;
}
