注意
请注意,XSLF仍然处于早期开发阶段,并且将来会在发行版中发生不兼容的更改。
特征索引
创建新的演示文稿
阅读现有演示文稿
使用预定义的布局创建幻灯片
删除幻灯片
重新订购幻灯片
更改幻灯片大小
阅读形状
添加图片
阅读演示文稿中包含的图像
格式化文本
超链接
将.pptx幻灯片转换为图像
合并多个演示文稿
新演示文稿
以下代码创建一个新的.pptx幻灯片,并向其添加一个空白幻灯片:
//创建一个新的空幻灯片
XMLSlideShow ppt = new XMLSlideShow();
//添加第一张幻灯片
XSLFSlide blankSlide = ppt.createSlide();
阅读现有演示文稿并附加幻灯片
XMLSlideShow ppt = new XMLSlideShow(new FileInputStream("slideshow.pptx"));
//附加一个新的幻灯片到最后
XSLFSlide blankSlide = ppt.createSlide();
从预定义的幻灯片布局创建新的幻灯片
XMLSlideShow ppt = new XMLSlideShow(new FileInputStream("slideshow.pptx"));
//首先看看什么幻灯片布局可用:
System.out.println("可用幻灯片布局:");
for(XSLFSlideMaster master:ppt.getSlideMasters()){
for(XSLFSlideLayout layout:master.getSlideLayouts()){
的System.out.println(layout.getType());
}
}
//空白幻灯片
XSLFSlide blankSlide = ppt.createSlide();
//可以有多个主器件引用多个布局
//为了演示,我们使用第一个(默认)幻灯片母版
XSLFSlideMaster defaultMaster = ppt.getSlideMasters().get(0);
//标题幻灯片
XSLFSlideLayout titleLayout = defaultMaster.getLayout(SlideLayout.TITLE);
//填写占位符
XSLFSlide slide1 = ppt.createSlide(titleLayout);
XSLFTextShape title1 = slide1.getPlaceholder(0);
title1.setText("First Title");
//标题和内容
XSLFSlideLayout titleBodyLayout = defaultMaster.getLayout(SlideLayout.TITLE_AND_CONTENT);
XSLFSlide slide2 = ppt.createSlide(titleBodyLayout);
XSLFTextShape title2 = slide2.getPlaceholder(0);
title2.setText("Second Title");
XSLFTextShape body2 = slide2.getPlaceholder(1);
body2.clearText(); //取消设置任何现有文本
body2.addNewTextParagraph().addNewTextRun().setText("First paragraph");
body2.addNewTextParagraph().addNewTextRun().setText("Second paragraph");
body2.addNewTextParagraph().addNewTextRun().setText("Third paragraph");
删除幻灯片
XMLSlideShow ppt = new XMLSlideShow(new FileInputStream("slideshow.pptx"));
ppt.removeSlide(0); //要删除的幻灯片的基于0的索引
重新排列幻灯片
XMLSlideShow ppt = new XMLSlideShow(new FileInputStream("slideshow.pptx"));
列表<XSLFSlide> slides = ppt.getSlides();
XSLFSlide thirdSlide = slides.get(2);
ppt.setSlideOrder(thirdSlide,0); //将第三张幻灯片移动到开头
如何检索或更改幻灯片大小
XMLSlideShow ppt = new XMLSlideShow();
//检索页面大小。坐标表示为点数(72 dpi)
java.awt.Dimension pgsize = ppt.getPageSize();
int pgx = pgsize.width; //滑动宽度的点数
int pgy = pgsize.height; //滑动高度的点数
//设置新页面大小
ppt.setPageSize(new java.awt.Dimension(1024,768));
如何读取特定幻灯片中包含的形状
以下代码演示了如何迭代每个幻灯片的形状。
The following code demonstrates how to iterate over shapes for each slide.
XMLSlideShow ppt = new XMLSlideShow(new FileInputStream("slideshow.pptx"));
// get slides
for (XSLFSlide slide : ppt.getSlides()) {
for (XSLFShape sh : slide.getShapes()) {
// name of the shape
String name = sh.getShapeName();
// shapes's anchor which defines the position of this shape in the slide
if (sh instanceof PlaceableShape) {
java.awt.geom.Rectangle2D anchor = ((PlaceableShape)sh).getAnchor();
}
if (sh instanceof XSLFConnectorShape) {
XSLFConnectorShape line = (XSLFConnectorShape) sh;
// work with Line
} else if (sh instanceof XSLFTextShape) {
XSLFTextShape shape = (XSLFTextShape) sh;
// work with a shape that can hold text
} else if (sh instanceof XSLFPictureShape) {
XSLFPictureShape shape = (XSLFPictureShape) sh;
// work with Picture
}
}
}
将图片添加到幻灯片
XMLSlideShow ppt = new XMLSlideShow();
XSLFSlide slide = ppt.createSlide();
byte[] pictureData = IOUtils.toByteArray(new FileInputStream("image.png"));
XSLFPictureData pd = ppt.addPicture(pictureData, PictureData.PictureType.PNG);
XSLFPictureShape pic = slide.createPicture(pd);
阅读演示文稿中包含的图片
XMLSlideShow ppt = new XMLSlideShow(new FileInputStream("slideshow.pptx"));
for(XSLFPictureData data : ppt.getAllPictures()){
byte[] bytes = data.getData();
String fileName = data.getFileName();
}
基本文本格式
XMLSlideShow ppt = new XMLSlideShow();
XSLFSlide slide = ppt.createSlide();
XSLFTextBox shape = slide.createTextBox();
XSLFTextParagraph p = shape.addNewTextParagraph();
XSLFTextRun r1 = p.addNewTextRun();
r1.setText("The");
r1.setFontColor(Color.blue);
r1.setFontSize(24.);
XSLFTextRun r2 = p.addNewTextRun();
r2.setText(" quick");
r2.setFontColor(Color.red);
r2.setBold(true);
XSLFTextRun r3 = p.addNewTextRun();
r3.setText(" brown");
r3.setFontSize(12.);
r3.setItalic(true);
r3.setStrikethrough(true);
XSLFTextRun r4 = p.addNewTextRun();
r4.setText(" fox");
r4.setUnderline(true);
如何创建超链接
XMLSlideShow ppt = new XMLSlideShow();
XSLFSlide slide = ppt.createSlide();
// assign a hyperlink to a text run
XSLFTextBox shape = slide.createTextBox();
XSLFTextRun r = shape.addNewTextParagraph().addNewTextRun();
r.setText("Apache POI");
XSLFHyperlink link = r.createHyperlink();
link.setAddress("http://poi.apache.org");
PPTX2PNG是将.pptx幻灯片的每个幻灯片转换为PNG图像的应用程序
用法:PPTX2PNG [选项] <pptx文件>
选项:
-scale 比例因子(默认值为1.0)
-slide 1的幻灯片的索引。默认是渲染所有幻灯片。
怎么运行的:
XSLFSlide对象实现了一个绘制(Graphics2D图形)方法,它将幻灯片中的所有形状递归地绘制到提供的图形画布中:
slide.draw(graphics);
其中图形是实现java.awt.Graphics2D的类。在PPTX2PNG中,图形画布派生自java.awt.image.BufferedImage,即目标是内存中的图像,但在一般情况下,您可以传递任何兼容的java.awt.Graphics2D实现。该 PPTX2SVG 示例演示了如何使用Apache蜡染到幻灯片转换成.PPTX SVG格式。
合并多个演示文稿
XMLSlideShow ppt = new XMLSlideShow();
String[] inputs = {"presentations1.pptx", "presentation2.pptx"};
for(String arg : inputs){
FileInputStream is = new FileInputStream(arg);
XMLSlideShow src = new XMLSlideShow(is);
is.close();
for(XSLFSlide srcSlide : src.getSlides()){
ppt.createSlide().importContent(srcSlide);
}
}
FileOutputStream out = new FileOutputStream("merged.pptx");
ppt.write(out);
out.close();
https://poi.apache.org/components/slideshow/xslf-cookbook.html