[英]Does Apache POI API support PPTX2PNG conversion (in java programs) for pptx generated by LibreOffice Impress?
[英]Does anyone have an example of Apache POI converting PPTX to PNG
有誰知道將PPTX powerpoint演示文稿轉換為某種形式的圖像的好例子? PNG / GIF /等?
我可以為PPT做,但尋找PPTX轉換示例
謝謝
在此期間它有效(......從那里復制):
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFSlide;
public class PptToPng {
public static void main(String[] args) throws Exception {
FileInputStream is = new FileInputStream("example.pptx");
XMLSlideShow ppt = new XMLSlideShow(is);
is.close();
double zoom = 2; // magnify it by 2
AffineTransform at = new AffineTransform();
at.setToScale(zoom, zoom);
Dimension pgsize = ppt.getPageSize();
XSLFSlide[] slide = ppt.getSlides();
for (int i = 0; i < slide.length; i++) {
BufferedImage img = new BufferedImage((int)Math.ceil(pgsize.width*zoom), (int)Math.ceil(pgsize.height*zoom), BufferedImage.TYPE_INT_RGB);
Graphics2D graphics = img.createGraphics();
graphics.setTransform(at);
graphics.setPaint(Color.white);
graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));
slide[i].draw(graphics);
FileOutputStream out = new FileOutputStream("slide-" + (i + 1) + ".png");
javax.imageio.ImageIO.write(img, "png", out);
out.close();
}
}
}
回答我自己的問題,我訂閱了開發郵件列表並問了這個問題。
答案是apache poi目前不支持此功能
有一個示例類PPTX2PNG
現在與POI捆綁在一起,似乎可以為PPTX套牌提供不錯的結果我已經拋出它:
http://svn.apache.org/repos/asf/poi/trunk/src/ooxml/java/org/apache/poi/xslf/util/PPTX2PNG.java
pptx4j可以幫助您在HTML中創建SVG(盡管仍有工作要做以支持所有形狀); 然后您可以使用其中一個從自動瀏覽器窗口創建圖像的工具。
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