package com.geekbang.ppttools2;
import com.google.common.base.Splitter;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFShape;
import org.apache.poi.xslf.usermodel.XSLFSlide;
import org.apache.poi.xslf.usermodel.XSLFTextShape;
import java.io.File;
import java.io.FileInputStream;
public class PPTXUtils123 {
public static String getToc(File file) throws Exception {
XMLSlideShow ppt = new XMLSlideShow(new FileInputStream(file));
StringBuilder ret = new StringBuilder();
XSLFSlide slide = ppt.getSlides().get(0);
int currCha = -1;
int count = 1;
String title = null;
boolean firstLine = true;
testExtract(ret, slide, count, title, firstLine);
return ret.toString();
}
private static void testExtract(StringBuilder ret, XSLFSlide slide, int count, String title, boolean firstLine) {
int currCha;
for (XSLFShape shape : slide.getShapes()) {
if (shape instanceof XSLFTextShape) {
XSLFTextShape textShape = (XSLFTextShape) shape;
String text = textShape.getText();
try {
currCha = Integer.parseInt(text);
if (currCha >= 0 && title != null) {
ret.append("# ").append(currCha).append('.').append(title).append('\n');
}
continue;
} catch (Exception ex) {
}
for (String line : Splitter.on("\n").omitEmptyStrings().trimResults().split(text)) {
if (firstLine) {
title = line;
firstLine = false;
} else {
ret.append(count).append(". ").append(line).append('\n');
count++;
}
}
}
}
}
}
