[英]How to set a different image for the background of each slide of the powerpoint using JAVA Apache POI?
[英]Get background image from PowerPoint Slide using Java
我需要使用Java從PowerPoint幻燈片中獲取背景圖像。 我知道Apache POI項目。 我可以找到從幻燈片中獲取文本和形狀的材料,但找不到實際的背景。 有沒有人有什么建議?
編輯:我使用建議的鏈接吱吱作響以下代碼。 這段代碼似乎抓住了幻燈片的內容,但並不完全是背景。 生成的圖像背景為白色。
我用這個PowerPoint嘗試過
package PowerPointProcessing;
import Logging.LogRunner;
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.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;
import org.apache.poi.hslf.HSLFSlideShow;
import org.apache.poi.hslf.model.Background;
import org.apache.poi.hslf.model.Fill;
import org.apache.poi.hslf.model.Shape;
import org.apache.poi.hslf.model.Slide;
import org.apache.poi.hslf.usermodel.SlideShow;
/**
*
* @author dvargo
*/
public class PPI
{
Dimension pageSize;
public Slide[] theSlides;
public PPI(String powerPointFilePath)
{
SlideShow ppt = null;
//open the presentation
try
{
ppt = new SlideShow(new HSLFSlideShow(powerPointFilePath));
}
catch(Exception e)
{
LogRunner.getLogger().severe("Could not open the powerpoint presentation");
return;
}
//get all the slides
theSlides = ppt.getSlides();
//see how many slides there are
int numberOfSlides = theSlides.length;
pageSize = ppt.getPageSize();
}
public BufferedImage getBackground(Slide theSlide)
{
Background background;
background = theSlide.getBackground();
Fill f = background.getFill();
Color color = f.getForegroundColor();
Shape[] theShapes = theSlide.getShapes();
BufferedImage img = new BufferedImage(pageSize.width, pageSize.height, BufferedImage.TYPE_INT_RGB);
Graphics2D graphics = img.createGraphics();
graphics.setPaint(color);
graphics.fill(new Rectangle2D.Float(0, 0, pageSize.width, pageSize.height));
theSlide.draw(graphics);
return img;
}
public static void main(String[] args) {
PPI ppi = new PPI("C:\\Documents and Settings\\dvargo\\Desktop\\Cludder\\a.ppt");
int count= 0;
for (Slide currSlide : ppi.theSlides)
{
BufferedImage img = ppi.getBackground(currSlide);
try
{
ImageIO.write(img, "jpeg", new File("C:\\Documents and Settings\\dvargo\\Desktop\\ppt\\" + count + ".jpeg"));
}
catch (IOException ex)
{
Logger.getLogger(PPI.class.getName()).log(Level.SEVERE, null, ex);
}
count++;
}
}
}
查看此問題的代碼: 使用Apache Poi從pptx中提取圖像
看起來應該是這樣的:
Background background = slides[current].getBackground();
Fill f = background.getFill();
Color color = f.getForegroundColor();
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