truetypefont.java

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// $Id: TrueTypeFont.java,v 1.5 2003/11/04 17:16:01 mike Exp $

package org.faceless.pdf;

import java.util.*;
import java.io.*;

/**
 * <p>
 * A concrete subclass of <code>PDFSimpleFont</code> representing a
 * <code>TrueType</code> font.
 * </p>
 * <p>
 * TrueType fonts are the standard font used by both Microsoft Windows
 * and Apple's MacOS. They can be used and embedded in PDF documents, and
 * the full range of Unicode characters used. This class can handle both
 * Macintosh and Windows varients.
 * </p>
 * @see PDFEncoding
 * @see Type1Font
 * @version $Revision: 1.5 $
 */ 
public class TrueTypeFont extends PDFSimpleFont
{
    /**
     * Create a new TrueType font from the specified InputStream. The
     * <code>embed</code> flag controls whether the font is embedded
     * or not. Some fonts have restrictions on embedding - these can
     * still be embedded but a warning is printed to <code>System.err</code>.
     * <i>Since 1.1, if this constructor is used and the font is embedded,
     * the font is subset by default.</i>
     *
     * @param file the TrueType font file
     * @param embed whether to embed the font in the PDF document or not.
     * @throws IOException if the font file can't be fully read or parsed
     * @throws IllegalArgumentException if the font file contains invalid data
     */
    public TrueTypeFont(InputStream file, boolean embed)
        throws IOException, IllegalArgumentException
    {
	super(new org.faceless.pdf2.OpenTypeFont(file, embed ? 2 : 1));
	((org.faceless.pdf2.OpenTypeFont)font).setEmbed(embed);
    }

    /**
     * <p>
     * Create a new TrueType font from the specified InputStream. The
     * <code>embed</code> flag controls whether the font is embedded
     * or not. Some fonts have restrictions on embedding - these can
     * still be embedded but a warning is printed to <code>System.err</code>.
     * </p>
     * <p>
     * Since 1.1, the library has the ability to <b>subset</b> embedded
     * TrueType fonts. This can result in a smaller file, but may be a
     * time-consuming process. Font subsets contain only the characters
     * that are actually used in the document, which can result in large
     * space savings when the font has many glyphs that aren't used. On
     * the other hand the font may wind up missing common characters,
     * making it useless outside the context of the PDF it's embededded
     * in (which may be an advantage in some situations).
     * </p>
     *
     * @param file the TrueType font file
     * @param embed whether to embed the font in the PDF document
     * @param subset whether to subset the font (only if the font is embedded)
     * @throws IOException if the font file can't be fully read or parsed
     * @throws IllegalArgumentException if the font file contains invalid data
     * @since 1.1
     */
    public TrueTypeFont(InputStream file, boolean embed, boolean subset)
        throws IOException, IllegalArgumentException
    {
	super(new org.faceless.pdf2.OpenTypeFont(file, embed ? 2 : 1));
	((org.faceless.pdf2.OpenTypeFont)font).setEmbed(embed);
	((org.faceless.pdf2.OpenTypeFont)font).setSubset(subset);
    }
}