>> 3. I would like to know what pictures belong to what slide. Is it
>> possible? (I didn't find a way to do it) if not, when will this be
>> possible?
NB> I don't believe it is currently possible. It should be fairly easy to
NB> implement, once we know how powerpoint matches pictures to slides. Until
NB> we know that, we can't code the functionality!
NB> Nick
Hi
Nick, it is possible! This functionality new. I added it just a couple of weeks
ago. Below is an example how to know what pictures belong to what
slide:
SlideShow ppt = new SlideShow(new HSLFSlideShow(filename)); //source
ppt
//array of picture data contained in the presentation.
//it has global scope since the same picture can be included in
multiple slides
PictureData[] pict = ppt.getPictures();
Slide[] slide = ppt.getSlides();
for (int i = 0; i < slide.length; i++) {
Slide sl = slide[i];
Shape[] sh = sl.getShapes(); //get all shapes for this slide
for (int j = 0; j < sh.length; j++) {
Shape shape = sh[j];
if (shape instanceof Picture){
Picture picture = (Picture)shape;
//i-based index of the actual picture data
int idx = picture.getPictureIndex();
PictureData pictdata = pict[idx-1];
//raw data.
byte[] data = pictdata.getData();
BufferedImage img = ImageIO.read(new
ByteArrayInputStream(data));
//draw image of save it to a file or do whatever you want.
}
}
}
}
Note, current implementation supports only JPEG and PNG formats.
WMF and Macintosh PICT are not yet supported.
Regards, Yegor Kozlov
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