/*

 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package sun.java2d.xr;

import java.awt.*;

import java.awt.MultipleGradientPaint.*;

import java.awt.geom.*;

import java.awt.image.*;

import sun.java2d.*;

import sun.java2d.loops.*;

abstract class XRPaints {

    static XRCompositeManager xrCompMan;

    static final XRGradient xrGradient = new XRGradient();

    static final XRLinearGradient xrLinearGradient = new XRLinearGradient();

    static final XRRadialGradient xrRadialGradient = new XRRadialGradient();

    static final XRTexture xrTexture = new XRTexture();

    public static void register(XRCompositeManager xrComp) {

        xrCompMan = xrComp;

    }

    private static XRPaints getXRPaint(SunGraphics2D sg2d) {

        switch (sg2d.paintState) {

        case SunGraphics2D.PAINT_GRADIENT:

            return xrGradient;

        case SunGraphics2D.PAINT_LIN_GRADIENT:

            return xrLinearGradient;

        case SunGraphics2D.PAINT_RAD_GRADIENT:

            return xrRadialGradient;

        case SunGraphics2D.PAINT_TEXTURE:

            return xrTexture;

        default:

            return null;

        }

    }

    /**

     * Attempts to locate an implementation corresponding to the paint state of

     * the provided SunGraphics2D object. If no implementation can be found, or

     * if the paint cannot be accelerated under the conditions of the

     * SunGraphics2D, this method returns false; otherwise, returns true.

     */

    static boolean isValid(SunGraphics2D sg2d) {

        XRPaints impl = getXRPaint(sg2d);

        return (impl != null && impl.isPaintValid(sg2d));

    }

    static void setPaint(SunGraphics2D sg2d, Paint paint) {

        XRPaints impl = getXRPaint(sg2d);

        if (impl != null) {

            impl.setXRPaint(sg2d, paint);

        }

    }

    /**

     * Returns true if this implementation is able to accelerate the Paint

     * object associated with, and under the conditions of, the provided

     * SunGraphics2D instance; otherwise returns false.

     */

    abstract boolean isPaintValid(SunGraphics2D sg2d);

    abstract void setXRPaint(SunGraphics2D sg2d, Paint paint);

    private static class XRGradient extends XRPaints {

        private XRGradient() {

        }

        /**

         * There are no restrictions for accelerating GradientPaint, so this

         * method always returns true.

         */

        @Override

        boolean isPaintValid(SunGraphics2D sg2d) {

            return true;

        }

        void setXRPaint(SunGraphics2D sg2d, Paint pt) {

            GradientPaint paint = (GradientPaint) pt;

            Point2D pt1 = paint.getPoint1();

            Point2D pt2 = paint.getPoint2();

            XRBackend con = xrCompMan.getBackend();

        }

    }

    public int getGradientLength(Point2D pt1, Point2D pt2) {

           double xDiff = Math.max(pt1.getX(), pt2.getX()) - Math.min(pt1.getX(), pt2.getX());

           double yDiff = Math.max(pt1.getY(), pt2.getY()) - Math.min(pt1.getY(), pt2.getY());

           return (int) Math.ceil(Math.sqrt(xDiff*xDiff + yDiff*yDiff));

    }

    private static class XRLinearGradient extends XRPaints {

        @Override

        boolean isPaintValid(SunGraphics2D sg2d) {

        }

        @Override

        void setXRPaint(SunGraphics2D sg2d, Paint pt) {

            LinearGradientPaint paint = (LinearGradientPaint) pt;

            Color[] colors = paint.getColors();

            Point2D pt1 = paint.getStartPoint();

            Point2D pt2 = paint.getEndPoint();

            AffineTransform at = paint.getTransform();

            try {

                at.invert();

            } catch (NoninvertibleTransformException ex) {

                ex.printStackTrace();

            }

            XRBackend con = xrCompMan.getBackend();

        }

    }

    private static class XRRadialGradient extends XRPaints {

        @Override

        boolean isPaintValid(SunGraphics2D sg2d) {

            RadialGradientPaint grad = (RadialGradientPaint) sg2d.paint;

        }

        @Override

        void setXRPaint(SunGraphics2D sg2d, Paint pt) {

            RadialGradientPaint paint = (RadialGradientPaint) pt;

            Color[] colors = paint.getColors();

            Point2D center = paint.getCenterPoint();

            int repeat = XRUtils.getRepeatForCycleMethod(paint.getCycleMethod());

            float[] fractions = paint.getFractions();

            float radius = paint.getRadius();

            AffineTransform at = paint.getTransform();

            try {

                at.invert();

            }

            XRBackend con = xrCompMan.getBackend();

        }

    }

    private static class XRTexture extends XRPaints {

        @Override

        boolean isPaintValid(SunGraphics2D sg2d) {

            TexturePaint paint = (TexturePaint) sg2d.paint;

            BufferedImage bi = paint.getImage();

            XRSurfaceData dstData = (XRSurfaceData) sg2d.getDestSurface();

        }

        @Override

        void setXRPaint(SunGraphics2D sg2d, Paint pt) {

            TexturePaint paint = (TexturePaint) pt;

            BufferedImage bi = paint.getImage();

            at.translate(anchor.getX(), anchor.getY());

            at.scale(anchor.getWidth() / ((double) bi.getWidth()), anchor.getHeight() / ((double) bi.getHeight()));

            try {

                at.invert();

            } catch (NoninvertibleTransformException ex) {

            }

        }

    }

        int[] pixels = new int[colors.length];

        for (int i = 0; i < colors.length; i++) {

        }

        return pixels;

    }

        int rgb = c.getRGB();

    }

}