https://bz.apache.org/bugzilla/show_bug.cgi?id=60552
Bug ID: 60552
Summary: PPTX generated using POI can't be opened with
Microsoft Powerpoint
Product: POI
Version: 3.15-FINAL
Hardware: PC
Status: NEW
Severity: major
Priority: P2
Component: XSLF
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
I am using a pptx as a reference to create another pptx file. Its used more
like a template. When I generate the ppt and open it in MS PowerPoint 2016
(same is seen on a Mac version too) it gives typical "PowerPoint found a
problem with the content ...". I have tried all the usual PowerPoint tricks to
see if it's a security issue. Does not seem so.
I was having issue with POI 3.9. So I downloaded 3.15 from
http://www-eu.apache.org/dist/poi/release/bin/poi-bin-3.15-20160924.zip but
continue to have the same issue.
Following are the relevant code snippets: In the process of removing the
proprietary code, I may have made some small mistakes but the PPT generation
part is intact.
private byte[] resizeImage(byte[] inPic, double img_width, double
img_height) {
try {
ByteArrayInputStream in = new
ByteArrayInputStream(inPic);
BufferedImage originalImage = ImageIO.read(in);
int type = originalImage.getType() == 0 ?
BufferedImage.TYPE_INT_ARGB : originalImage.getType();
if (img_height == 0) {
img_height = originalImage.getHeight();
}
BufferedImage resizedImage = new BufferedImage((int)
img_width, (int) img_height, type);
Graphics2D g = resizedImage.createGraphics();
g.drawImage(originalImage, 0, 0, (int) img_width, (int)
img_height, null);
g.dispose();
ByteArrayOutputStream buffer = new
ByteArrayOutputStream();
ImageIO.write(resizedImage, "jpeg", buffer);
return buffer.toByteArray();
} catch (Exception ex) {
}
return null;
}
private XSLFShape getShape(BLogger logger, XSLFSlide slide, String
shapeName) {
XSLFShape shape = null;
Iterator<XSLFShape> sit =
slide.getSlideLayout().getShapes().iterator();
while(sit.hasNext()) {
XSLFShape lshape = sit.next();
if (lshape != null &&
lshape.getShapeName().equalsIgnoreCase(shapeName)) {
shape = lshape;
break;
}
}
return shape;
}
private static void setPic(XMLSlideShow ppt, XSLFSlide slide, byte[]
pic, String shapeName) throws BException {
XSLFShape shape = getShape(logger, slide, shapeName);
Rectangle2D anchor = shape.getAnchor();
byte[] ri = resizeImage(pic, anchor.getWidth(),
anchor.getHeight());
XSLFPictureData pd = ppt.addPicture(pic, PictureType.JPEG);
XSLFPictureShape pic = slide.createPicture(pd);
slide.removeShape(shape);
pic.setAnchor(anchor);
}
public static XSLFSlide createSlide(XMLSlideShow ppt, XSLFSlide slide,
Map<XSLFSlide, XSLFSlide> srcDstrcSlideMap,
Set<XSLFSlideLayout> visitedLOs) {
slide = ppt.createSlide();
XSLFSlideLayout srcLayout = cachedSlide.getSlideLayout();
//this is coming from a cached slide
if (!visitedLOs.contains(srcLayout)) {
visitedLOs.add(srcLayout);
XSLFSlideLayout dstLayout = slide.getSlideLayout();
dstLayout.importContent(srcLayout);
}
slide.importContent(pptlo.slide);
return slide;
}
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