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docx4j is a library which helps you to work with the Office Open
XML file format as used in docx
documents, pptx presentations, and xlsx spreadsheets.
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package org.pptx4j.convert.out.svginhtml;
import javax.xml.bind.JAXBException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.docx4j.XmlUtils;
import org.docx4j.dml.CTBlip;
import org.docx4j.dml.CTPoint2D;
import org.docx4j.dml.CTPositiveSize2D;
import org.docx4j.model.images.AbstractWordXmlPicture;
import org.docx4j.openpackaging.parts.Part;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.traversal.NodeIterator;
public class PictureExporter extends AbstractWordXmlPicture {
/**
*
<-----------------------
*/
protected static Logger log = LoggerFactory.getLogger(PictureExporter.class);
public static DocumentFragment createHtmlImg(
SvgConversionContext context,
NodeIterator wpInline) {
PictureExporter converter = createPicture(context, wpInline);
DocumentFragment df = getHtmlDocumentFragment(converter);
// Now wrap
//
// around it
CTPoint2D offset = converter.pic.getSpPr().getXfrm().getOff();
Dimensions xy = converter.readDimensions( offset.getX(), offset.getY() );
/*
* TODO, USE:
*
* // Geometrical transforms
CTTransform2D xfrm = cxnSp.getSpPr().getXfrm();
Box b = new Box(xfrm.getOff().getX(), xfrm.getOff().getY(),
xfrm.getExt().getCx(), xfrm.getExt().getCy() );
if (xfrm.getRot()!=0) {
b.rotate(xfrm.getRot());
}
if (xfrm.isFlipH() ) {
b.flipH();
}
if (xfrm.isFlipV() ) {
b.flipV();
}
// Convert from EMU to pixels
b.toPixels();
*
*/
Element div = df.getOwnerDocument().createElement("div");
div.setAttribute("style", "position:absolute; left:" + xy.width + "px; top:" + xy.height + "px;");
Node img = df.getFirstChild();
df.removeChild(img);
df.appendChild(div);
div.appendChild(img);
return df;
}
org.pptx4j.pml.Pic pic=null;
public static PictureExporter createPicture(SvgConversionContext context,
NodeIterator anchorOrInline) {
PictureExporter converter = new PictureExporter();
try {
Node n = anchorOrInline.nextNode();
converter.pic = (org.pptx4j.pml.Pic)XmlUtils.unmarshal(n, org.pptx4j.jaxb.Context.jcPML, org.pptx4j.pml.Pic.class);
} catch (JAXBException e1) {
e1.printStackTrace();
}
log.info("** image: " + converter.pic.getClass().getName() );
if (converter.pic.getBlipFill()==null
|| converter.pic.getBlipFill().getBlip()==null) {
log.error("blip missing!!");
return null;
}
CTBlip blip = converter.pic.getBlipFill().getBlip();
String imgRelId = blip.getEmbed();
if (imgRelId!=null) {
converter.handleImageRel(context.getImageHandler(), imgRelId,
(Part)context.getResolvedLayout().relationships.getSourceP());
} else if (blip.getLink()!=null) {
converter.handleImageRel(context.getImageHandler(), blip.getLink(),
(Part)context.getResolvedLayout().relationships.getSourceP());
} else {
log.error("not linked or embedded?!");
}
converter.dimensions = converter.readDimensions(
converter.pic.getSpPr().getXfrm().getExt());
// TODO:
return converter;
}
private final int extentToPixelConversionFactor = 9525; //12700;
private Dimensions readDimensions(long x, long y) {
Dimensions dimensions = new Dimensions();
dimensions.width= (int) x / extentToPixelConversionFactor;
dimensions.widthUnit = "px";
dimensions.height= (int) y / extentToPixelConversionFactor;
dimensions.heightUnit = "px";
return dimensions;
}
private Dimensions readDimensions(CTPositiveSize2D size2d) {
/*
*/
if (size2d==null) {
log.warn("wp:inline/wp:extent missing!");
return null;
}
return readDimensions(size2d.getCx(), size2d.getCy() );
}
}
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