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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.xslf.usermodel;
import java.awt.geom.Rectangle2D;
import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xddf.usermodel.chart.AxisCrosses;
import org.apache.poi.xddf.usermodel.chart.AxisPosition;
import org.apache.poi.xddf.usermodel.chart.BarDirection;
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.XDDFChart;
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;
/**
* Build a chart without reading template file
*/
public class ChartFromScratch {
private static void usage(){
System.out.println("Usage: BarChartExample ");
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 = new BufferedReader(new FileReader(args[0]))) {
String chartTitle = modelReader.readLine(); // first line is chart title
String[] series = modelReader.readLine().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[listLanguages.size()]);
Double[] values1 = listCountries.toArray(new Double[listCountries.size()]);
Double[] values2 = listSpeakers.toArray(new Double[listSpeakers.size()]);
try {
XMLSlideShow ppt = new XMLSlideShow();
XSLFSlide slide = ppt.createSlide();
XSLFChart chart = ppt.createChart();
Rectangle2D rect2D = new java.awt.Rectangle(XDDFChart.DEFAULT_X, XDDFChart.DEFAULT_Y,
XDDFChart.DEFAULT_WIDTH, XDDFChart.DEFAULT_HEIGHT);
slide.addChart(chart, rect2D);
setBarData(chart, chartTitle, series, categories, values1, values2);
// save the result
try (OutputStream out = new FileOutputStream("bar-chart-demo-output.pptx")) {
ppt.write(out);
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
System.out.println("Done");
}
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);
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 String valuesDataRange2 = chart.formatRange(new CellRangeAddress(1, numOfPoints, 2, 2));
final XDDFDataSource categoriesData = XDDFDataSourcesFactory.fromArray(categories, categoryDataRange, 0);
final XDDFNumericalDataSource valuesData = XDDFDataSourcesFactory.fromArray(values1, valuesDataRange, 1);
values1[6] = 16.0; // if you ever want to change the underlying data
final XDDFNumericalDataSource valuesData2 = XDDFDataSourcesFactory.fromArray(values2, valuesDataRange2, 2);
XDDFBarChartData bar = (XDDFBarChartData) chart.createData(ChartTypes.BAR, bottomAxis, leftAxis);
XDDFBarChartData.Series series1 = (XDDFBarChartData.Series) bar.addSeries(categoriesData, valuesData);
series1.setTitle(series[0], chart.setSheetTitle(series[0], 1));
XDDFBarChartData.Series series2 = (XDDFBarChartData.Series) bar.addSeries(categoriesData, valuesData2);
series2.setTitle(series[1], chart.setSheetTitle(series[1], 2));
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);
}
}
