Resize Image in Page Header
Posted: Thu Dec 11, 2014 11:43 amI have added an image as an anchor to the page header but the image is large and I wanted to reduce the size of the image to fit nicely in the header below are the code snippets.
any suggestions.
- Code: Select all
public class WordDoc {
private ObjectFactory objectFactory = new ObjectFactory();
private WordprocessingMLPackage wordMLPackage;
private Relationship relationship;
File file;
byte[] bytes;
private Integer HEADER_TOP_OFFSET = 0;
public WordDoc() throws IOException {
file = new File("src/resources/images/logo.jpg");
bytes = convertImageToByteArray(file);
}
public void createWordDoc() throws Docx4JException, IOException, Exception {
wordMLPackage = WordprocessingMLPackage.createPackage();
factory = Context.getWmlObjectFactory();
relationship = createHeaderPart(wordMLPackage);
System.out.println("relationship id " + relationship.getId());
createHeaderReference(wordMLPackage, relationship);
wordMLPackage.getMainDocumentPart().addParagraphOfText("Hello Word!");
wordMLPackage.save(new java.io.File("src/files/HelloWord14.docx"));
}
public Relationship createHeaderPart(
WordprocessingMLPackage wordprocessingMLPackage)
throws Exception {
HeaderPart headerPart = new HeaderPart();
// Have to do this so that the next line can
// add an image
headerPart.setPackage(wordprocessingMLPackage);
headerPart.setJaxbElement(getHdr(wordprocessingMLPackage, headerPart));
return wordprocessingMLPackage.getMainDocumentPart()
.addTargetPart(headerPart);
}
private Hdr getHdr(WordprocessingMLPackage wordprocessingMLPackage,
Part sourcePart) throws Exception {
Hdr hdr = objectFactory.createHdr();
hdr.getEGBlockLevelElts().add(
newImage(wordprocessingMLPackage,
sourcePart, bytes, "filename", "alttext", 1, 2
)
);
return hdr;
}
private void createHeaderReference(
WordprocessingMLPackage wordprocessingMLPackage,
Relationship relationship)
throws InvalidFormatException {
List<SectionWrapper> sections = wordprocessingMLPackage.getDocumentModel().getSections();
SectPr sectPr = sections.get(sections.size() - 1).getSectPr();
// There is always a section wrapper, but it might not contain a sectPr
if (sectPr == null) {
sectPr = objectFactory.createSectPr();
wordprocessingMLPackage.getMainDocumentPart().addObject(sectPr);
sections.get(sections.size() - 1).setSectPr(sectPr);
}
HeaderReference headerReference = objectFactory.createHeaderReference();
headerReference.setId(relationship.getId());
headerReference.setType(HdrFtrRef.DEFAULT);
sectPr.getEGHdrFtrReferences().add(headerReference);// add header or
// footer references
}
private byte[] convertImageToByteArray(File file)
throws FileNotFoundException, IOException {
InputStream is = new FileInputStream(file);
long length = file.length();
// You cannot create an array using a long, it needs to be an int.
if (length > Integer.MAX_VALUE) {
System.out.println("File too large!!");
}
byte[] bytes = new byte[(int) length];
int offset = 0;
int numRead = 0;
while (offset < bytes.length && (numRead = is.read(bytes, offset, bytes.length - offset)) >= 0) {
offset += numRead;
}
// Ensure all the bytes have been read
if (offset < bytes.length) {
System.out.println("Could not completely read file "
+ file.getName());
}
is.close();
return bytes;
}
public org.docx4j.wml.P newImage(WordprocessingMLPackage wordMLPackage,
Part sourcePart,
byte[] bytes,
String filenameHint, String altText,
int id1, int id2) throws Exception {
BinaryPartAbstractImage imagePart = BinaryPartAbstractImage.createImagePart(wordMLPackage,
sourcePart, bytes);
Inline inline = imagePart.createImageInline(filenameHint, altText,
id1, id2, false);
// convert the inline to an anchor (xml contents are essentially the same)
String anchorXml = XmlUtils.marshaltoString(inline, true, false, Context.jc, Namespaces.NS_WORD12, "anchor",
Inline.class);
org.docx4j.dml.ObjectFactory dmlFactory = new org.docx4j.dml.ObjectFactory();
org.docx4j.dml.wordprocessingDrawing.ObjectFactory wordDmlFactory = new org.docx4j.dml.wordprocessingDrawing.ObjectFactory();
Anchor anchor = (Anchor) XmlUtils.unmarshalString(anchorXml, Context.jc, Anchor.class);
anchor.setSimplePos(dmlFactory.createCTPoint2D());
anchor.getSimplePos().setX(0L);
anchor.getSimplePos().setY(0L);
anchor.setSimplePosAttr(false);
anchor.setPositionH(wordDmlFactory.createCTPosH());
anchor.getPositionH().setAlign(STAlignH.CENTER);
anchor.getPositionH().setRelativeFrom(STRelFromH.MARGIN);
anchor.setPositionV(wordDmlFactory.createCTPosV());
anchor.getPositionV().setPosOffset(HEADER_TOP_OFFSET);
anchor.getPositionV().setRelativeFrom(STRelFromV.PAGE);
anchor.setWrapNone(wordDmlFactory.createCTWrapNone());
// Now add the inline in w:p/w:r/w:drawing
ObjectFactory factory = new ObjectFactory();
org.docx4j.wml.P p = factory.createP();
org.docx4j.wml.Drawing drawing = factory.createDrawing();
R run = factory.createR();
p.getParagraphContent().add(run);
run.getContent().add(drawing);
drawing.getAnchorOrInline().add(anchor);
return p;
}
any suggestions.
