public PDXObjectForm importPageAsForm(PDDocument sourceDoc, PDPage page) throws IOException
{
COSStream pageStream = (COSStream)page.getContents().getCOSObject();
PDStream newStream = new PDStream(targetDoc,
pageStream.getUnfilteredStream(), false);
PDXObjectForm form = new PDXObjectForm(newStream);
//Copy resources
PDResources pageRes = page.findResources();
PDResources formRes = new PDResources();
cloner.cloneMerge(pageRes, formRes);
form.setResources(formRes);
//Transfer some values from page to form
transferDict(page.getCOSDictionary(), form.getCOSStream(), PAGE_TO_FORM_FILTER, true);
Matrix matrix = form.getMatrix();
AffineTransform at = matrix != null ? matrix.createAffineTransform() : new AffineTransform();
PDRectangle mediaBox = page.findMediaBox();
PDRectangle cropBox = page.findCropBox();
PDRectangle viewBox = (cropBox != null ? cropBox : mediaBox);
//Handle the /Rotation entry on the page dict
int rotation = getNormalizedRotation(page);
//Transform to FOP's user space
//at.scale(1 / viewBox.getWidth(), 1 / viewBox.getHeight());
at.translate(mediaBox.getLowerLeftX() - viewBox.getLowerLeftX(),
mediaBox.getLowerLeftY() - viewBox.getLowerLeftY());
switch (rotation)
{
case 90:
at.scale(viewBox.getWidth() / viewBox.getHeight(), viewBox.getHeight() / viewBox.getWidth());
at.translate(0, viewBox.getWidth());
at.rotate(-Math.PI / 2.0);
break;
case 180:
at.translate(viewBox.getWidth(), viewBox.getHeight());
at.rotate(-Math.PI);
break;
case 270:
at.scale(viewBox.getWidth() / viewBox.getHeight(), viewBox.getHeight() / viewBox.getWidth());
at.translate(viewBox.getHeight(), 0);
at.rotate(-Math.PI * 1.5);
default:
//no additional transformations necessary
}
//Compensate for Crop Boxes not starting at 0,0
at.translate(-viewBox.getLowerLeftX(), -viewBox.getLowerLeftY());
if (!at.isIdentity())
{
form.setMatrix(at);
}
BoundingBox bbox = new BoundingBox();
bbox.setLowerLeftX(viewBox.getLowerLeftX());
bbox.setLowerLeftY(viewBox.getLowerLeftY());
bbox.setUpperRightX(viewBox.getUpperRightX());
bbox.setUpperRightY(viewBox.getUpperRightY());
form.setBBox(new PDRectangle(bbox));
return form;
}