example how to create pptx pie chart from template, more tests for poi-ooxml

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1406496 13f79535-47bb-0310-9956-ffa450edef68

3 files changed, 156 insertions, 0 deletions

diff --git a/src/examples/src/org/apache/poi/xslf/usermodel/PieChartDemo.java b/src/examples/src/org/apache/poi/xslf/usermodel/PieChartDemo.java
new file mode 100644
index 0000000000..f6e6a847d6
--- /dev/null
+++ b/src/examples/src/org/apache/poi/xslf/usermodel/PieChartDemo.java
@@ -0,0 +1,152 @@
+/*

+ *  ====================================================================

+ *    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 org.apache.poi.POIXMLDocumentPart;

+import org.apache.poi.ss.util.CellRangeAddress;

+import org.apache.poi.ss.util.CellReference;

+import org.apache.poi.xssf.usermodel.XSSFRow;

+import org.apache.poi.xssf.usermodel.XSSFSheet;

+import org.apache.poi.xssf.usermodel.XSSFWorkbook;

+import org.openxmlformats.schemas.drawingml.x2006.chart.CTAxDataSource;

+import org.openxmlformats.schemas.drawingml.x2006.chart.CTChart;

+import org.openxmlformats.schemas.drawingml.x2006.chart.CTNumData;

+import org.openxmlformats.schemas.drawingml.x2006.chart.CTNumDataSource;

+import org.openxmlformats.schemas.drawingml.x2006.chart.CTNumVal;

+import org.openxmlformats.schemas.drawingml.x2006.chart.CTPieChart;

+import org.openxmlformats.schemas.drawingml.x2006.chart.CTPieSer;

+import org.openxmlformats.schemas.drawingml.x2006.chart.CTPlotArea;

+import org.openxmlformats.schemas.drawingml.x2006.chart.CTSerTx;

+import org.openxmlformats.schemas.drawingml.x2006.chart.CTStrData;

+import org.openxmlformats.schemas.drawingml.x2006.chart.CTStrVal;

+

+import java.io.BufferedReader;

+import java.io.FileInputStream;

+import java.io.FileOutputStream;

+import java.io.FileReader;

+import java.io.OutputStream;

+

+/**

+ * Build a pie chart from a template pptx

+ *

+ * @author Yegor Kozlov

+ */

+public class 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;

+        }

+

+        BufferedReader modelReader = new BufferedReader(new FileReader(args[1]));

+

+        String chartTitle = modelReader.readLine();  // first line is chart title

+

+        XMLSlideShow pptx = new XMLSlideShow(new FileInputStream(args[0]));

+        XSLFSlide slide = pptx.getSlides()[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");

+

+        // embedded Excel workbook that holds the chart data

+        POIXMLDocumentPart xlsPart = chart.getRelations().get(0);

+        XSSFWorkbook wb = new XSSFWorkbook();

+        XSSFSheet sheet = wb.createSheet();

+

+        CTChart ctChart = chart.getCTChart();

+        CTPlotArea plotArea = ctChart.getPlotArea();

+

+        CTPieChart pieChart = plotArea.getPieChartArray(0);

+        //Pie Chart Series

+        CTPieSer ser = pieChart.getSerArray(0);

+

+        // Series Text

+        CTSerTx tx = ser.getTx();

+        tx.getStrRef().getStrCache().getPtArray(0).setV(chartTitle);

+        sheet.createRow(0).createCell(1).setCellValue(chartTitle);

+        String titleRef = new CellReference(sheet.getSheetName(), 0, 1, true, true).formatAsString();

+        tx.getStrRef().setF(titleRef);

+

+

+        // Category Axis Data

+        CTAxDataSource cat = ser.getCat();

+        CTStrData strData = cat.getStrRef().getStrCache();

+

+        // Values

+        CTNumDataSource val = ser.getVal();

+        CTNumData numData = val.getNumRef().getNumCache();

+

+        strData.setPtArray(null);  // unset old axis text

+        numData.setPtArray(null);  // unset old values

+

+

+        // set model

+        int idx = 0;

+        int rownum = 1;

+        String ln;

+        while((ln = modelReader.readLine()) != null){

+            String[] vals = ln.split("\\s+");

+            CTNumVal numVal = numData.addNewPt();

+            numVal.setIdx(idx);

+            numVal.setV(vals[1]);

+

+            CTStrVal sVal = strData.addNewPt();

+            sVal.setIdx(idx);

+            sVal.setV(vals[0]);

+

+            idx++;

+            XSSFRow row = sheet.createRow(rownum++);

+            row.createCell(0).setCellValue(vals[0]);

+            row.createCell(1).setCellValue(Double.valueOf(vals[1]));

+        }

+        numData.getPtCount().setVal(idx);

+        strData.getPtCount().setVal(idx);

+

+        String numDataRange = new CellRangeAddress(1, rownum-1, 1, 1).formatAsString(sheet.getSheetName(), true);

+        val.getNumRef().setF(numDataRange);

+        String axisDataRange = new CellRangeAddress(1, rownum-1, 0, 0).formatAsString(sheet.getSheetName(), true);

+        cat.getStrRef().setF(axisDataRange);

+

+        // updated the embedded workbook with the data

+        OutputStream xlsOut = xlsPart.getPackagePart().getOutputStream();

+        wb.write(xlsOut);

+        xlsOut.close();

+

+        // save the result

+        FileOutputStream out = new FileOutputStream("pie-chart-demo-output.pptx");

+        pptx.write(out);

+        out.close();

+    }

+}

diff --git a/src/examples/src/org/apache/poi/xslf/usermodel/pie-chart-data.txt b/src/examples/src/org/apache/poi/xslf/usermodel/pie-chart-data.txt
new file mode 100755
index 0000000000..40b6959c2c
--- /dev/null
+++ b/src/examples/src/org/apache/poi/xslf/usermodel/pie-chart-data.txt
@@ -0,0 +1,4 @@
+My Chart

+First 1.0

+Second 3.0

+Third 4.0
\ No newline at end of file
diff --git a/src/examples/src/org/apache/poi/xslf/usermodel/pie-chart-template.pptx b/src/examples/src/org/apache/poi/xslf/usermodel/pie-chart-template.pptx
new file mode 100755
index 0000000000..33d28e154c
--- /dev/null
+++ b/src/examples/src/org/apache/poi/xslf/usermodel/pie-chart-template.pptx