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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.util.text;
import java.util.Map;
import org.apache.xmlgraphics.fonts.Glyphs;
import org.apache.fop.util.text.AdvancedMessageFormat.Part;
import org.apache.fop.util.text.AdvancedMessageFormat.PartFactory;
/**
* Function formatting a character to a glyph name.
*/
public class GlyphNameFieldPart implements Part {
private String fieldName;
/**
* Creates a new glyph name field part
* @param fieldName the field name
*/
public GlyphNameFieldPart(String fieldName) {
this.fieldName = fieldName;
}
/** {@inheritDoc} */
public boolean isGenerated(Map params) {
Object obj = params.get(fieldName);
return obj != null && getGlyphName(obj).length() > 0;
}
private String getGlyphName(Object obj) {
if (obj instanceof Character) {
return Glyphs.charToGlyphName(((Character)obj).charValue());
} else {
throw new IllegalArgumentException(
"Value for glyph name part must be a Character but was: "
+ obj.getClass().getName());
}
}
/** {@inheritDoc} */
public void write(StringBuffer sb, Map params) {
if (!params.containsKey(fieldName)) {
throw new IllegalArgumentException(
"Message pattern contains unsupported field name: " + fieldName);
}
Object obj = params.get(fieldName);
sb.append(getGlyphName(obj));
}
/** {@inheritDoc} */
public String toString() {
return "{" + this.fieldName + ",glyph-name}";
}
/** Factory for {@link GlyphNameFieldPart}. */
public static class Factory implements PartFactory {
/** {@inheritDoc} */
public Part newPart(String fieldName, String values) {
return new GlyphNameFieldPart(fieldName);
}
/** {@inheritDoc} */
public String getFormat() {
return "glyph-name";
}
}
}
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