Package org.pushingpixels.flamingo.api.svg

Source Code of org.pushingpixels.flamingo.api.svg.SvgStreamTranscoder

/*
* Copyright (c) 2005-2010 Flamingo 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 Flamingo Kirill Grouchnikov 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.flamingo.api.svg;

import java.io.BufferedInputStream;
import java.io.InputStream;

import org.apache.batik.gvt.GraphicsNode;
import org.apache.batik.transcoder.SVGAbstractTranscoder;
import org.apache.batik.transcoder.TranscoderInput;

/**
* 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 javaClassname
   *            Classname for the generated Java2D code.
   */
  public SvgStreamTranscoder(InputStream is, String javaClassname) {
    super(javaClassname);
    this.is = is;
  }

  /**
   * Transcodes the SVG image into Java2D code. Does nothing if the
   * {@link #listener} is <code>null</code>.
   */
  public void transcode() {
    if (this.externalPrintWriter == null)
      return;

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

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