protected boolean applyUnknownPaint()

in fop-core/src/main/java/org/apache/fop/svg/PDFGraphics2D.java [987:1103]
108 lines of code
12 McCabe index (conditional complexity)

    protected boolean applyUnknownPaint(Paint paint, Shape shape) {
        preparePainting();

        Shape clip = getClip();
        Rectangle2D usrClipBounds;
        Rectangle2D usrBounds;
        usrBounds = shape.getBounds2D();
        if (clip != null) {
            usrClipBounds  = clip.getBounds2D();
            if (!usrClipBounds.intersects(usrBounds)) {
                return true;
            }
            Rectangle2D.intersect(usrBounds, usrClipBounds, usrBounds);
        }
        double usrX = usrBounds.getX();
        double usrY = usrBounds.getY();
        double usrW = usrBounds.getWidth();
        double usrH = usrBounds.getHeight();

        Rectangle devShapeBounds;
        Rectangle devClipBounds;
        Rectangle devBounds;
        AffineTransform at = getTransform();
        devShapeBounds = at.createTransformedShape(shape).getBounds();
        if (clip != null) {
            devClipBounds  = at.createTransformedShape(clip).getBounds();
            if (!devClipBounds.intersects(devShapeBounds)) {
                return true;
            }
            devBounds = devShapeBounds.intersection(devClipBounds);
        } else {
            devBounds = devShapeBounds;
        }
        int devX = devBounds.x;
        int devY = devBounds.y;
        int devW = devBounds.width;
        int devH = devBounds.height;

        ColorSpace rgbCS = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        ColorModel rgbCM = new DirectColorModel(
            rgbCS, 32, 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000,
             false, DataBuffer.TYPE_BYTE);

        PaintContext pctx = paint.createContext(rgbCM, devBounds, usrBounds,
                                                at, getRenderingHints());
        PDFXObject imageInfo = pdfDoc.getXObject(
            "TempImage:" + pctx.toString());
        if (imageInfo != null) {
            resourceContext.addXObject(imageInfo);
        } else {
            Raster r = pctx.getRaster(devX, devY, devW, devH);
            assert (r instanceof WritableRaster);
            WritableRaster wr = (WritableRaster) r;
            wr = wr.createWritableTranslatedChild(0, 0);

            ColorModel pcm = pctx.getColorModel();
            BufferedImage bi = new BufferedImage(
                pcm, wr, pcm.isAlphaPremultiplied(), null);
            final byte[] rgb  = new byte[devW * devH * 3];
            final int[]  line = new int[devW];
            final byte[] mask;
            int x;
            int y;
            int val;
            int rgbIdx = 0;

            if (pcm.hasAlpha()) {
                mask = new byte[devW * devH];
                int maskIdx = 0;
                for (y = 0; y < devH; y++) {
                    bi.getRGB(0, y, devW, 1, line, 0, devW);
                    for (x = 0; x < devW; x++) {
                        val = line[x];
                        mask[maskIdx++] = (byte)(val >>> 24);
                        rgb[rgbIdx++]   = (byte)((val >> 16) & 0x0FF);
                        rgb[rgbIdx++]   = (byte)((val >> 8) & 0x0FF);
                        rgb[rgbIdx++]   = (byte)(val & 0x0FF);
                    }
                }
            } else {
                mask = null;
                for (y = 0; y < devH; y++) {
                    bi.getRGB(0, y, devW, 1, line, 0, devW);
                    for (x = 0; x < devW; x++) {
                        val = line[x];
                        rgb[rgbIdx++]  = (byte)((val >> 16) & 0x0FF);
                        rgb[rgbIdx++]  = (byte)((val >> 8) & 0x0FF);
                        rgb[rgbIdx++]  = (byte)(val & 0x0FF);
                    }
                }
            }

            PDFReference maskRef = null;
            if (mask != null) {
                BitmapImage fopimg = new BitmapImage(
                    "TempImageMask:" + pctx.toString(), devW, devH, mask, null);
                fopimg.setColorSpace(new PDFDeviceColorSpace(PDFDeviceColorSpace.DEVICE_GRAY));
                PDFImageXObject xobj = pdfDoc.addImage(resourceContext, fopimg);
                maskRef = xobj.makeReference();

                flushPDFDocument();
            }
            BitmapImage fopimg;
            fopimg = new BitmapImage("TempImage:" + pctx.toString(),
                                     devW, devH, rgb, maskRef);
            fopimg.setTransparent(new PDFColor(255, 255, 255));
            imageInfo = pdfDoc.addImage(resourceContext, fopimg);
            flushPDFDocument();
        }

        currentStream.write("q\n");
        writeClip(shape);
        currentStream.write("" + PDFNumber.doubleOut(usrW) + " 0 0 " + PDFNumber.doubleOut(-usrH) + " "
                + PDFNumber.doubleOut(usrX) + " " + PDFNumber.doubleOut(usrY + usrH) + " cm\n"
                            + imageInfo.getName() + " Do\nQ\n");
        return true;
    }