GlyphDescription.java

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 * 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
 * 
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package org.apache.padaf.preflight.font.type1;

import java.util.List;

import org.apache.fontbox.cff.CharStringCommand;

public class GlyphDescription {
	private List<Object> operations = null;

	private Integer glyphWidth = null;

	GlyphDescription(List<Object> operations) {
		this.operations = operations;
	}

	public int getGlyphWidth() {
		if (this.glyphWidth != null) {
			return glyphWidth;
		}

		this.glyphWidth = searchWidth();
		return this.glyphWidth;
	}

	private int searchWidth() {
		for (int i = 0; operations != null && i < operations.size(); ++i) {
			Object obj = operations.get(i);
			if (obj instanceof CharStringCommand) {
				CharStringCommand csCmd = (CharStringCommand) obj;
				if ("hsbw".equals(CharStringCommand.TYPE1_VOCABULARY.get(csCmd.getKey()))) {
					return (Integer) operations.get(i - 1);
				}
			}
		}
		// 0 is the default value if glyph isn't found. 
		return 0;
	}	
}