Examples of java.awt.PaintContext

java.awt.PaintContext
The PaintContext interface defines the encapsulated and optimized environment to generate color patterns in device space for fill or stroke operations on a {@link Graphics2D}. The PaintContext provides the necessary colors for Graphics2D operations in the form of a {@link Raster} associated with a {@link ColorModel}. The PaintContext maintains state for a particular paint operation. In a multi-threaded environment, several contexts can exist simultaneously for a single {@link Paint} object. @see Paint

        }
    }


    public Object startSequence(SunGraphics2D sg, Shape s, Rectangle devR,
                                int[] abox) {
        PaintContext paintContext =
            sg.paint.createContext(sg.getDeviceColorModel(),
                                   devR,
                                   s.getBounds2D(),
                                   sg.cloneTransform(),
                                   sg.getRenderingHints());

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    public void renderPathTile(Object ctx,
                               byte[] atile, int offset, int tilesize,
                               int x, int y, int w, int h) {
        TileContext context = (TileContext) ctx;
        PaintContext paintCtxt = context.paintCtxt;
        SunGraphics2D sg = context.sunG2D;
        SurfaceData dstData = context.dstData;
        SurfaceData srcData = null;
        Raster lastRas = null;
        if (context.lastData != null && context.lastRaster != null) {
            srcData = (SurfaceData) context.lastData.get();
            lastRas = (Raster) context.lastRaster.get();
            if (srcData == null || lastRas == null) {
                srcData = null;
                lastRas = null;
            }
        }
        ColorModel paintModel = context.paintModel;


        for (int rely = 0; rely < h; rely += TILE_SIZE) {
            int ty = y + rely;
            int th = Math.min(h-rely, TILE_SIZE);
            for (int relx = 0; relx < w; relx += TILE_SIZE) {
                int tx = x + relx;
                int tw = Math.min(w-relx, TILE_SIZE);


                Raster srcRaster = paintCtxt.getRaster(tx, ty, tw, th);
                if ((srcRaster.getMinX() != 0) || (srcRaster.getMinY() != 0)) {
                    srcRaster = srcRaster.createTranslatedChild(0, 0);
                }
                if (lastRas != srcRaster) {
                    lastRas = srcRaster;

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    public Object startSequence(SunGraphics2D sg, Shape s, Rectangle devR,
                                int[] abox) {
        RenderingHints hints = sg.getRenderingHints();
        ColorModel model = sg.getDeviceColorModel();
        PaintContext paintContext =
            sg.paint.createContext(model, devR, s.getBounds2D(),
                                   sg.cloneTransform(),
                                   hints);
        CompositeContext compositeContext =
            sg.composite.createContext(paintContext.getColorModel(), model,
                                       hints);
        return new TileContext(sg, paintContext, compositeContext, model);
    }

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    */
    public void renderPathTile(Object ctx,
                               byte[] atile, int offset, int tilesize,
                               int x, int y, int w, int h) {
        TileContext context = (TileContext) ctx;
        PaintContext paintCtxt = context.paintCtxt;
        CompositeContext compCtxt = context.compCtxt;
        SunGraphics2D sg = context.sunG2D;


        Raster srcRaster = paintCtxt.getRaster(x, y, w, h);
        ColorModel paintModel = paintCtxt.getColorModel();


        Raster dstRaster;
        Raster dstIn;
        WritableRaster dstOut;

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        int w = rec.width;
        int h = rec.height;
        if(w <= 0 || h <= 0) {
            return;
        }
        PaintContext pc = paint.createContext(null, rec, rec, transform, hints);
        Raster r = pc.getRaster(x, y, w, h);
        WritableRaster wr;
        if(r instanceof WritableRaster){
            wr = (WritableRaster) r;
        }else{
            wr = r.createCompatibleWritableRaster();
            wr.setRect(r);
        }
        Surface srcSurf = new ImageSurface(pc.getColorModel(), wr);
        blitter.blit(0, 0, srcSurf, x, y, dstSurf, w, h,
                composite, null, mra);
        srcSurf.dispose();
    }

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        int w = rec.width;
        int h = rec.height;
        if(w <= 0 || h <= 0) {
            return;
        }
        PaintContext pc = paint.createContext(null, rec, rec, transform, hints);
        Raster r = pc.getRaster(x, y, w, h);
        WritableRaster wr;
        if(r instanceof WritableRaster){
            wr = (WritableRaster) r;
        }else{
            wr = r.createCompatibleWritableRaster();
            wr.setRect(r);
        }
        Surface srcSurf = new ImageSurface(pc.getColorModel(), wr);
        blitter.blit(0, 0, srcSurf, x, y, dstSurf, w, h,
                composite, null, mra);
        srcSurf.dispose();
    }

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        int w = rec.width;
        int h = rec.height;
        if(w <= 0 || h <= 0) {
            return;
        }
        PaintContext pc = paint.createContext(null, rec, rec, transform, hints);
        Raster r = pc.getRaster(x, y, w, h);
        WritableRaster wr;
        if(r instanceof WritableRaster){
            wr = (WritableRaster) r;
        }else{
            wr = r.createCompatibleWritableRaster();
            wr.setRect(r);
        }
        Surface srcSurf = new ImageSurface(pc.getColorModel(), wr);
        blitter.blit(0, 0, srcSurf, x, y, dstSurf, w, h,
                composite, null, mra);
        srcSurf.dispose();
    }

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        int w = rec.width;
        int h = rec.height;
        if(w <= 0 || h <= 0) {
            return;
        }
        PaintContext pc = paint.createContext(null, rec, rec, transform, hints);
        Raster r = pc.getRaster(x, y, w, h);
        WritableRaster wr;
        if(r instanceof WritableRaster){
            wr = (WritableRaster) r;
        }else{
            wr = r.createCompatibleWritableRaster();
            wr.setRect(r);
        }
        Surface srcSurf = new ImageSurface(pc.getColorModel(), wr);
        blitter.blit(0, 0, srcSurf, x, y, dstSurf, w, h,
                composite, null, mra);
        srcSurf.dispose();
    }

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        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.getImage
            ("TempImage:" + pctx.toString());
        if (imageInfo != null) {
            resourceContext.getPDFResources().addXObject(imageInfo);
        } else {
            Raster r = pctx.getRaster(devX, devY, devW, devH);
            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, y, val, 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);
                    }
                }
            }


            String maskRef = null;
            if (mask != null) {
                BitmapImage fopimg = new BitmapImage
                    ("TempImageMask:" + pctx.toString(), devW, devH, mask, null);
                fopimg.setColorSpace(new PDFColorSpace(PDFColorSpace.DEVICE_GRAY));
                PDFXObject xobj = pdfDoc.addImage(resourceContext, fopimg);
                maskRef = xobj.referencePDF();


                if (outputStream != null) {
                    try {
                        this.pdfDoc.output(outputStream);
                    } catch (IOException ioe) {
                        // ignore exception, will be thrown again later
                    }
                }
            }
            BitmapImage fopimg;
            fopimg = new BitmapImage("TempImage:" + pctx.toString(),
                                     devW, devH, rgb, maskRef);
            fopimg.setTransparent(new PDFColor(255, 255, 255));
            imageInfo = pdfDoc.addImage(resourceContext, fopimg);
            if (outputStream != null) {
                try {

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        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.getPDFResources().addXObject(imageInfo);
        } else {
            Raster r = pctx.getRaster(devX, devY, devW, devH);
            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);
                    }
                }
            }


            String 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.referencePDF();


                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();
        }

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Related Classes of java.awt.PaintContext

org.apache.fop.svg.PDFGraphics2D

org.apache.harmony.awt.gl.CommonGraphics2D

org.apache.pdfbox.pdmodel.graphics.blend.SoftMaskPaint

org.jnode.awt.util.SurfaceGraphics2D

sun.java2d.pipe.AlphaPaintPipe

sun.java2d.pipe.GeneralCompositePipe

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