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/*
 * Copyright (c) 2007, intarsys consulting GmbH
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * - 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.
 *
 * - Neither the name of intarsys 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 de.intarsys.pdf.fd;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import de.intarsys.pdf.cos.COSCatalog;
import de.intarsys.pdf.cos.COSDocument;
import de.intarsys.pdf.st.EnumWriteMode;
import de.intarsys.pdf.st.STDocument;
import de.intarsys.tools.locator.ILocator;

public class FDDocument {
  /** the underlying COSDocument object */
  private COSDocument cosDoc;

  private FDFDF fdf;

  protected FDDocument(COSDocument newDoc) {
    super();
    cosDoc = newDoc;
  }

  protected FDDocument() {
    super();
    cosDoc = COSDocument.createNew(STDocument.DOCTYPE_FDF);
  }

  /**
   * create a fd document based on a cos level object
   * 
   * @param doc
   *            COSDocument to base this FDDoc on
   * 
   * @return A new FDDoc object.
   */
  public static FDDocument createFromCOS(COSDocument doc) {
    FDDocument result = new FDDocument(doc);
    result.initializeFromCOS();
    return result;
  }

  /**
   * create a FDDoc from scratch
   * 
   * @return A new FDDoc.
   */
  public static FDDocument createNew() {
    FDDocument result = new FDDocument();
    result.initializeFromScratch();
    return result;
  }

  /**
   * initialize the object when created based on its cos representation
   */
  protected void initializeFromCOS() {
    fdf = (FDFDF) FDFDF.META.createFromCos(getCatalog().cosGetFDF());
  }

  /**
   * initialize the object when created from scratch (in memory)
   */
  protected void initializeFromScratch() {
    fdf = (FDFDF) FDFDF.META.createNew();
    getCatalog().cosSetFDF(fdf.cosGetDict());
  }

  /**
   * lookup the catalog dictionary in a document
   * 
   * @return the document catalog object
   */
  public COSCatalog getCatalog() {
    return cosGetDoc().getCatalog();
  }

  /**
   * get the COS level implementation of the document
   * 
   * @return the underlying COSDocument
   */
  public COSDocument cosGetDoc() {
    return cosDoc;
  }

  public FDFDF getFdf() {
    return fdf;
  }

  public void save() throws IOException {
    save(getLocator(), null);
  }

  public ILocator getLocator() {
    return cosDoc.getLocator();
  }

  public void save(ILocator locator, Map options) throws IOException {
    if (options == null) {
      options = new HashMap();
    }
    // we MUST have a full write...
    cosDoc.setWriteModeHint(EnumWriteMode.FULL);
    cosDoc.save(locator, options);
  }

  public void save(ILocator locator) throws IOException {
    save(locator, null);
  }
}
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