private PDFFormXObject getFormXObject()

in src/java/org/apache/fop/render/pdf/pdfbox/PDFBoxAdapter.java [310:361]
44 lines of code
7 McCabe index (conditional complexity)

    private PDFFormXObject getFormXObject(PDFDictionary pageResources, PDFStream pageStream, String key, PDPage page)
        throws IOException {
        if (pdfDoc.isMergeFontsEnabled()) {
            throw new RuntimeException("merge-fonts and form-xobject can't both be enabled");
        }
        if (!pageResources.hasObjectNumber()) {
            pdfDoc.registerObject(pageResources);
        }
        PDFFormXObject form = pdfDoc.addFormXObject(null, pageStream, pageResources.makeReference(), key);
        final Set<String> page2Form = new HashSet<>(Arrays.asList("Group", "LastModified", "Metadata"));
        transferDict(page.getCOSObject(), pageStream, page2Form, true);

        AffineTransform at = form.getMatrix();
        PDRectangle mediaBox = page.getMediaBox();
        PDRectangle cropBox = page.getCropBox();
        PDRectangle viewBox = cropBox != null ? cropBox : mediaBox;

        //Handle the /Rotation entry on the page dict
        int rotation = PDFUtil.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);
                break;
            default:
                //no additional transformations necessary
                break;
        }
        at.translate(-viewBox.getLowerLeftX(), -viewBox.getLowerLeftY());

        form.setMatrix(at);

        form.setBBox(new Rectangle2D.Float(
                viewBox.getLowerLeftX(), viewBox.getLowerLeftY(),
                viewBox.getUpperRightX(), viewBox.getUpperRightY()));
        return form;
    }