Examples of ae.sun.java2d.pipe.ShapeSpanIterator

ae.sun.java2d.pipe.ShapeSpanIterator

This class can iterate individual span elements generated by scan converting a Shape. This particular implementation flattens the incoming path and then performs simple polygon tracing to calculate the spans. Note that this class holds pointers to native data which must be disposed. It is not marked as finalizable since it is intended to be very lightweight and finalization is a comparitively expensive procedure. The caller must specifically use try{} finally{} to manually ensure that the object is disposed after use, otherwise native data structures might be leaked. Here is a code sample for using this class: public void fillShape(Shape s, Rectangle clipRect) { ShapeSpanIterator ssi = new ShapeSpanIterator(false); try { ssi.setOutputArea(clipRect); ssi.appendPath(s.getPathIterator(null)); int spanbox[] = new int[4]; while (ssi.nextSpan(spanbox)) { int x = spanbox[0]; int y = spanbox[1]; int w = spanbox[2] - x; int h = spanbox[3] - y; fillRect(x, y, w, h); } } finally { ssi.dispose(); } }

                clipRegion = devClip.getIntersection(usrClip.getBounds());
            }
        } else {
            PathIterator cpi = usrClip.getPathIterator(null);
            int box[] = new int[4];
            ShapeSpanIterator sr = LoopPipe.getFillSSI(this);
            try {
                sr.setOutputArea(devClip);
                sr.appendPath(cpi);
                sr.getPathBox(box);
                Region r = Region.getInstance(box);
                r.appendSpans(sr);
                clipRegion = r;
                clipState =
                    r.isRectangular() ? CLIP_RECTANGULAR : CLIP_SHAPE;
            } finally {
                sr.dispose();
            }
        }
        if (origClipState != clipState &&
            (clipState == CLIP_SHAPE || origClipState == CLIP_SHAPE))
        {

Examples of ae.sun.java2d.pipe.ShapeSpanIterator

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