Examples of java.awt.image.renderable.RenderContext

java.awt.image.renderable.RenderContext
A RenderContext encapsulates the information needed to produce a specific rendering from a RenderableImage. It contains the area to be rendered specified in rendering-independent terms, the resolution at which the rendering is to be performed, and hints used to control the rendering process.
Users create RenderContexts and pass them to the RenderableImage via the createRendering method. Most of the methods of RenderContexts are not meant to be used directly by applications, but by the RenderableImage and operator classes to which it is passed.
The AffineTransform parameter passed into and out of this class are cloned. The RenderingHints and Shape parameters are not necessarily cloneable and are therefore only reference copied. Altering RenderingHints or Shape instances that are in use by instances of RenderContext may have undesired side effects.

                                   r.getY()-radY/scaleY,
                                   r.getWidth() +2*radX/scaleX, 
                                   r.getHeight()+2*radY/scaleY);


        RenderedImage ri;
        ri = getSource().createRendering(new RenderContext(srcAt, r, rh));
        if (ri == null) 
            return null;


        CachableRed cr;
        cr = new RenderedImageCachableRed(ri);

View Full Code Here

        at = usr2dev;
        rcAT = new AffineTransform(at.getScaleX(), at.getShearY(),
                                   at.getShearX(), at.getScaleY(),
                                   0, 0);


        RenderContext rc = new RenderContext(rcAT, null, renderingHints);
            
        RenderedImage ri = rootGNR.createRendering(rc);
        if (ri == null)
            return null;

View Full Code Here

        }


        rh.put(KEY_COLORSPACE, VALUE_COLORSPACE_ALPHA_CONVERT);


        RenderedImage ri;
        ri = getSource().createRendering(new RenderContext(at, aoi, rh));
        if (ri == null)
            return null;


        CachableRed cr = RenderedImageCachableRed.wrap(ri);

View Full Code Here


        RenderedImage ri = null;
        if (arect.intersects(srect) == true) {
            Rectangle2D.intersect(srect, arect, srect);
            
            RenderContext srcRC = new RenderContext(usr2dev, srect, rh);
            ri = src.createRendering(srcRC);


            // System.out.println("Pad filt: " + src + " R: " +
            //                    src.getBounds2D());
        }

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        if (origAOI == null)
            origAOI = getBounds2D();


        Rectangle2D aoiR = origAOI.getBounds2D();


        RenderContext srcRc = new RenderContext(srcAt, aoiR, rh);
        RenderedImage mapRed = map.createRendering(srcRc);


        if (mapRed == null) return null;


        // Grow the area of interest in user space. to account for
        // the max surround needs of displacement map.
        aoiR = new Rectangle2D.Double(aoiR.getX()      - scale/2,
                                      aoiR.getY()      - scale/2,
                                      aoiR.getWidth()  + scale,
                                      aoiR.getHeight() + scale);


        Rectangle2D displacedRect = displaced.getBounds2D();
        if (aoiR.intersects(displacedRect) == false)
            return null;


        aoiR = aoiR.createIntersection(displacedRect);
        srcRc = new RenderContext(srcAt, aoiR, rh);
        RenderedImage displacedRed = displaced.createRendering(srcRc);


        if (displacedRed == null) return null;


        mapRed = convertSourceCS(mapRed);

View Full Code Here

        
        background = new PadRable8Bit(background, r2d, PadMode.ZERO_PAD);


        
        RenderedImage ri = background.createRendering
            (new RenderContext(renderContext.getTransform(), r2d, 
                               renderContext.getRenderingHints()));
        // System.out.println("RI: [" + ri.getMinX() + ", " 
        //                    + ri.getMinY() + ", " +
        //                    + ri.getWidth() + ", " +
        //                    + ri.getHeight() + "]");

View Full Code Here


        rh.put(RenderingHintsKeyExt.KEY_COLORSPACE, 
               ColorSpaceHintKey.VALUE_COLORSPACE_ALPHA_CONVERT);


        RenderedImage ri;
        ri = getSource().createRendering(new RenderContext(at, aoi, rh));
        if (ri == null)
            return null;


        CachableRed cr = RenderedImageCachableRed.wrap(ri);

View Full Code Here

            Rectangle2D.intersect(aoiR, bounds2d, aoiR);
        }


        Rectangle devRect = at.createTransformedShape(aoiR).getBounds();


        rc = new RenderContext(at, aoiR, rh);


        Vector srcs = new Vector();


        Iterator i = getSources().iterator();
        while (i.hasNext()) {

View Full Code Here

        // We only want it's alpha channel...
        rh.put(RenderingHintsKeyExt.KEY_COLORSPACE, 
               ColorSpaceHintKey.VALUE_COLORSPACE_ALPHA);


        RenderedImage ri;
        ri = getSource().createRendering(new RenderContext(at, aoi, rh));
        
        if(ri == null){
            return null;
        }

View Full Code Here

                                   r.getY()-radY/scaleY,
                                   r.getWidth() +2*radX/scaleX, 
                                   r.getHeight()+2*radY/scaleY);


        RenderedImage ri;
        ri = getSource().createRendering(new RenderContext(srcAt, r, rh));
        if (ri == null) 
            return null;


        CachableRed cr;
        cr = new RenderedImageCachableRed(ri);

View Full Code Here

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