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Demonstrating the abilities of the Swing UI Toolkit swingset2 and swingx aka swingset3
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/*
 * Copyright (c) 2005-2021 Radiance Kirill Grouchnikov. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  o Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 *  o Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 *  o Neither the name of the copyright holder nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.pushingpixels.radiance.tools.svgtranscoder.api;

import org.apache.batik.gvt.GraphicsNode;
import org.apache.batik.transcoder.*;

import java.io.*;

/**
 * SVG to Java2D transcoder.
 *
 * @author Kirill Grouchnikov.
 */
public class SvgStreamTranscoder extends SvgBaseTranscoder {
    public static class RawTranscoder extends SVGAbstractTranscoder {
        public GraphicsNode getGVTRoot() {
            return this.root;
        }
    }

    /**
     * Input stream of the SVG image.
     */
    protected InputStream is;

    /**
     * Creates a new transcoder.
     *
     * @param is               Input stream of the SVG image.
     * @param classname        Classname for the generated Java2D code.
     * @param languageRenderer Language renderer for the generated Java2D code.
     */
    public SvgStreamTranscoder(InputStream is, String classname,
            LanguageRenderer languageRenderer) {
        super(classname, languageRenderer);
        this.is = is;
    }

    /**
     * Transcodes the SVG image into Java2D code. Does nothing if the {@link #listener} is
     * null.
     *
     * @param templateStream Stream with the template content
     */
    public void transcode(InputStream templateStream) {
        if (this.externalPrintWriter == null) {
            return;
        }

        RawTranscoder transcoder = new RawTranscoder();
        BufferedInputStream bis = new BufferedInputStream(is);
        TranscoderInput ti = new TranscoderInput(bis);

        try {
            transcoder.transcode(ti, null);
            this.transcode(transcoder.getGVTRoot(), templateStream);
        } catch (Exception exc) {
            exc.printStackTrace();
        } finally {
            this.externalPrintWriter.close();
        }
    }
}