FontMapper.java :  » PDF » jPod » de » intarsys » font » Java Open Source

/*
 * 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.font;

import java.io.File;
import java.util.HashMap;
import java.util.Map;

/**
 * DOCUMENT ME!
 * 
 * @author MIT TODO To change the template for this generated type comment go to
 *         Window - Preferences - Java - Code Style - Code Templates
 */
public class FontMapper {
  private static FontMapper active = null;

  private Map fontMaps = new HashMap();

  private FontMap defaultMap = null;

  public static synchronized FontMapper getActive() {
    if (active == null) {
      active = new FontMapper();
    }
    return active;
  }

  protected FontMapper() {
    super();
  }

  public void setDefaultMap(FontMap defaultMap) {
    this.defaultMap = defaultMap;
  }

  public FontMap getDefaultMap() {
    return defaultMap;
  }

  public FontMap lookupFontMap(String name) {
    return (FontMap) fontMaps.get(normalize(name));
  }

  public void registerAlias(String name, String alias) {
    FontMap map = new FontAliasMap(this, normalize(name), alias);
    if (name == null) {
      setDefaultMap(map);
    } else {
      fontMaps.put(map.getKey(), map);
    }
  }

  public void registerFile(String name, File file) {
    FontMap map = new FontFileMap(this, normalize(name), file);
    if (name == null) {
      setDefaultMap(map);
    } else {
      fontMaps.put(map.getKey(), map);
    }
  }

  public void registerResource(String name, Class owner, String resource) {
    FontMap map = new FontResourceMap(this, normalize(name), owner,
        resource);
    if (name == null) {
      setDefaultMap(map);
    } else {
      fontMaps.put(map.getKey(), map);
    }
  }

  protected String normalize(String name) {
    if (name == null) {
      return null;
    }
    StringBuilder result = new StringBuilder();
    for (int i = 0; i < name.length(); i++) {
      char c = name.charAt(i);
      if ((c == ' ') || (c == '_') || (c == '-')) {
        continue;
      }
      result.append(Character.toLowerCase(c));
    }
    return result.toString();
  }
}