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This is a backport of OpenJFX 8 to run on Java 7.
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/*
 * Copyright (c) 2011, 2013, 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.javafx.sg.prism;

import com.sun.javafx.geom.Arc2D;
import com.sun.javafx.geom.Path2D;
import com.sun.javafx.geom.PathIterator;
import com.sun.javafx.geom.Shape;
import com.sun.javafx.geom.transform.BaseTransform;
import com.sun.javafx.sg.PGPath;

/**
 */
public class NGPath extends NGShape implements PGPath {

    private Path2D p = new Path2D();

    public void reset() {
        p.reset();
    }

    public void update() {
        geometryChanged();
    }

    private int toWindingRule(FillRule rule) {
        if (rule == FillRule.NON_ZERO) {
            return Path2D.WIND_NON_ZERO;
        } else {
            return Path2D.WIND_EVEN_ODD;
        }
    }

    public void setFillRule(FillRule fillRule) {
        p.setWindingRule(toWindingRule(fillRule));
    }

    public float getCurrentX() {
        return p.getCurrentPoint().x;
    }

    public float getCurrentY() {
        return p.getCurrentPoint().y;
    }

    public void addClosePath() {
        p.closePath();
    }

    public void addMoveTo(float x, float y) {
        p.moveTo(x, y);
    }

    public void addLineTo(float x, float y) {
        p.lineTo(x, y);
    }

    public void addQuadTo(float ctrlx, float ctrly, float x, float y) {
        p.quadTo(ctrlx, ctrly, x, y);
    }

    public void addCubicTo(float ctrlx1, float ctrly1,
                           float ctrlx2, float ctrly2,
                           float x, float y)
    {
        p.curveTo(ctrlx1, ctrly1, ctrlx2, ctrly2, x, y);
    }

    public void addArcTo(float arcX, float arcY, float arcW, float arcH,
                         float arcStart, float arcExtent, float xAxisRotation)
    {
        Arc2D arc = new Arc2D(arcX, arcY, arcW, arcH, arcStart, arcExtent, Arc2D.OPEN);
        BaseTransform xform = xAxisRotation == 0.0 ? null :
                BaseTransform.getRotateInstance(xAxisRotation,
                                                arc.getCenterX(), arc.getCenterY());
        PathIterator pi = arc.getPathIterator(xform);
        // RT-8926, append(true) converts the initial moveTo into a
        // lineTo which can generate huge miter joins if the segment
        // is small enough.  So, we manually skip it here instead.
        pi.next();
        p.append(pi, true);
    }

    public Object getGeometry() {
        return p;
    }

    @Override
    public Shape getShape() {
        return p;
    }

    public boolean acceptsPath2dOnUpdate() {
        return true;
    }

    public void updateWithPath2d(Path2D path) {
        p.setTo(path);
        geometryChanged();
    }
    
    
}