文件在线预览ppt转换图片（二）

package com.lx.file.convert.master.ppt;

import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.List;
import java.util.Locale;

import javax.imageio.ImageIO;

import org.apache.poi.sl.draw.DrawFactory;
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.XSLFTextParagraph;
import org.apache.poi.xslf.usermodel.XSLFTextRun;
import org.apache.poi.xslf.usermodel.XSLFTextShape;

public class PPT2ImageMaster {
	public String  PptxToImage(String filePath) throws IOException{
		//创建文件输入对象
		File outdir = new File("F:\\21.文档转换\\测试文档\\浪潮交流");

		File file=new File(filePath);
		FileInputStream fileinputstream =new FileInputStream(file);
		//读取幻灯片
		XMLSlideShow ppt = new XMLSlideShow(fileinputstream);
		List<XSLFSlide> slides = ppt.getSlides();
		Dimension pgsize = ppt.getPageSize();
		int width = (int) (pgsize.width);
		int height = (int) (pgsize.height);
		for (int i=0 ;i< slides.size();i++) {
			XSLFSlide slide = slides.get(i);
			for (XSLFShape shape : ppt.getSlides().get(i).getShapes()) {
				if (shape instanceof XSLFTextShape) {
					XSLFTextShape tsh = (XSLFTextShape) shape;
					for (XSLFTextParagraph p : tsh) {
						for (XSLFTextRun r : p) {
							System.out.println(r.getFontFamily());
							r.setFontFamily("微软雅黑");
						}
					}
				}
			}

			BufferedImage img = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
			Graphics2D graphics = img.createGraphics();
			DrawFactory.getInstance(graphics).fixFonts(graphics);

			// default rendering options
			graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
			graphics.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
			graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
			graphics.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
					RenderingHints.VALUE_FRACTIONALMETRICS_ON);

			graphics.scale(1, 1);
			// draw stuff
			slide.draw(graphics);

			// save the result
				String outname = file.getName().replaceFirst(".pptx?", "");
				outname = String.format(Locale.ROOT, "%1$s-%2$04d.%3$s", outname, i, "png");
				File outfile = new File(outdir, outname);
				ImageIO.write(img, "png", outfile);

			graphics.dispose();
			img.flush();
		}
		
		
		return null;
		
	}
	public static void main(String[] args) {
		try {
			new PPT2ImageMaster().PptxToImage("F:\\21.文档转换\\测试文档\\ppttest.pptx");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}