package extract;import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics2D; import java.awt.geom.Rectangle2D; import java.awt.image.BufferedImage; import java.io.File; import java.io.FileOutputStream;import org.apache.poi.hslf.HSLFSlideShow; import org.apache.poi.hslf.model.Slide; import org.apache.poi.hslf.usermodel.SlideShow;import util.Const;import bean.PPTBean;/** * 将每个slide转化成png格式加以保存 * * @author liheyuan * */ public class SaveSlideAsPNG {/** * 将一个ppt的所有slide转化为png，存储 * * @param ss * @param bean */ public static void convertAllSlides(HSLFSlideShow ss, PPTBean bean) { SlideShow ppt = new SlideShow(ss); Dimension pgsize = ppt.getPageSize(); Slide[] slide = ppt.getSlides();// 存放png的根目录 String dir_root = Const.SLIDE_PNG_DIR + "/" + bean.getPptID() + "/"; File file = new File(dir_root); file.mkdirs();for (int i = 0; i < slide.length; i++) { BufferedImage img = new BufferedImage(pgsize.width, pgsize.height, BufferedImage.TYPE_INT_RGB); Graphics2D graphics = img.createGraphics(); // clear the drawing area int backgroundColor = slide[i].getColorScheme() .getBackgroundColourRGB(); graphics.setPaint(new Color(backgroundColor)); graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));// render the background slide[i].getBackground().draw(graphics); // render the content slide[i].draw(graphics);String filename = dir_root + (i + 1) + ".png";FileOutputStream out = null; try { out = new FileOutputStream(filename); javax.imageio.ImageIO.write(img, "png", out); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { try { out.close(); } catch (Exception e) { // Nothing } } } } }