Package org.pentaho.reporting.engine.classic.core.modules.output.support.itext

Source Code of org.pentaho.reporting.engine.classic.core.modules.output.support.itext.BaseFontResourceFactory

/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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 Lesser General Public License for more details.
*
* Copyright (c) 2001 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors..  All rights reserved.
*/

package org.pentaho.reporting.engine.classic.core.modules.output.support.itext;

import java.util.Map;

import com.lowagie.text.pdf.BaseFont;
import org.pentaho.reporting.libraries.resourceloader.CompoundResource;
import org.pentaho.reporting.libraries.resourceloader.DependencyCollector;
import org.pentaho.reporting.libraries.resourceloader.FactoryParameterKey;
import org.pentaho.reporting.libraries.resourceloader.Resource;
import org.pentaho.reporting.libraries.resourceloader.ResourceCreationException;
import org.pentaho.reporting.libraries.resourceloader.ResourceData;
import org.pentaho.reporting.libraries.resourceloader.ResourceException;
import org.pentaho.reporting.libraries.resourceloader.ResourceFactory;
import org.pentaho.reporting.libraries.resourceloader.ResourceKey;
import org.pentaho.reporting.libraries.resourceloader.ResourceLoadingException;
import org.pentaho.reporting.libraries.resourceloader.ResourceManager;

/**
* Creation-Date: 16.05.2006, 17:19:38
*
* @author Thomas Morgner
*/
public class BaseFontResourceFactory implements ResourceFactory
{
  public static final FactoryParameterKey FONTNAME =
      new FactoryParameterKey("filename");
  public static final FactoryParameterKey ENCODING =
      new FactoryParameterKey("encoding");
  public static final FactoryParameterKey EMBEDDED =
      new FactoryParameterKey("embedded");

  public BaseFontResourceFactory()
  {
  }

  public Resource create(final ResourceManager manager,
                         final ResourceData data,
                         final ResourceKey context)
      throws ResourceCreationException, ResourceLoadingException
  {
    final ResourceKey key = data.getKey();
    final Map factoryParameters = key.getFactoryParameters();
    final boolean embedded = Boolean.TRUE.equals(factoryParameters.get(BaseFontResourceFactory.EMBEDDED));
    final String encoding = String.valueOf(factoryParameters.get(BaseFontResourceFactory.ENCODING));
    final String fontType = String.valueOf(factoryParameters.get(BaseFontResourceFactory.FONTNAME));

    final DependencyCollector dc = new DependencyCollector
        (key, data.getVersion(manager));

    final byte[] ttfAfm = data.getResource(manager);
    byte[] pfb = null;
    if (embedded && (fontType.endsWith(".afm") || fontType.endsWith(".pfm")))
    {
      final String pfbFileName = fontType.substring
          (0, fontType.length() - 4) + ".pfb";
      try
      {
        final ResourceKey pfbKey = manager.deriveKey(key, pfbFileName);
        final ResourceData res = manager.load(pfbKey);
        pfb = res.getResource(manager);
        dc.add(pfbKey, res.getVersion(manager));
      }
      catch (ResourceException e)
      {
        // ignore ..
      }
    }

    try
    {
      final BaseFont baseFont = BaseFont.createFont
          (fontType, encoding, embedded, false, ttfAfm, pfb);
      return new CompoundResource(key, dc, baseFont, getFactoryType());
    }
    catch (Exception e)
    {
      throw new ResourceCreationException
          ("Failed to create the font " + fontType, e);
    }
  }

  public Class getFactoryType()
  {
    return BaseFont.class;
  }

  public void initializeDefaults()
  {
    // nothing needed ...
  }
}
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