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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.css.parser;

import javafx.scene.paint.Color;
import javafx.scene.paint.Stop;
import javafx.scene.text.Font;

import com.sun.javafx.css.Size;
import com.sun.javafx.css.StyleConverterImpl;
import javafx.css.ParsedValue;

/**
 * convert a Stop from a Size and a Color
 */
public final class StopConverter extends StyleConverterImpl {

    // lazy, thread-safe instatiation
    private static class Holder {
        static StopConverter INSTANCE = new StopConverter();
    }

    public static StopConverter getInstance() {
        return Holder.INSTANCE;
    }

    private StopConverter() {
        super();
    }

    @Override
    public Stop convert(ParsedValue value, Font font) {
        ParsedValue[] values = value.getValue();
        final Double offset = ((Size) values[0].convert(font)).pixels(font);
        final Color color = (Color) values[1].convert(font);
        return new Stop(offset, color);
    }

    @Override
    public String toString() {
        return "StopConverter";
    }
}