pfm2afm.java

源码包含生成 PDF 和 HTML 的类库

/*
 * $Id: Pfm2afm.java 3514 2008-06-27 09:26:36Z blowagie $
 *
 * Copyright 1991 Ken Borgendale
 *
 * The contents of this file are subject to the Mozilla Public License Version 1.1
 * (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the License.
 *
 * The Original Code is 'iText, a free JAVA-PDF library'.
 *
 * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
 * the Initial Developer are Copyright (C) 1999-2007 by Bruno Lowagie.
 * All Rights Reserved.
 * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
 * are Copyright (C) 2000-2007 by Paulo Soares. All Rights Reserved.
 *
 * Contributor(s): all the names of the contributors are added in the source code
 * where applicable.
 *
 * Alternatively, the contents of this file may be used under the terms of the
 * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
 * provisions of LGPL are applicable instead of those above.  If you wish to
 * allow use of your version of this file only under the terms of the LGPL
 * License and not to allow others to use your version of this file under
 * the MPL, indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by the LGPL.
 * If you do not delete the provisions above, a recipient may use your version
 * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the MPL as stated above or under the terms of the GNU
 * Library General Public License as published by the Free Software Foundation;
 * either version 2 of the License, or any later version.
 *
 * This library 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 Library general Public License for more
 * details.
 *
 * If you didn't download this code from the following link, you should check if
 * you aren't using an obsolete version:
 * http://www.lowagie.com/iText/
 */
/********************************************************************
 *                                                                  *
 *  Title:  pfm2afm - Convert Windows .pfm files to .afm files      *
 *                                                                  *
 *  Author: Ken Borgendale   10/9/91  Version 1.0                   *
 *                                                                  *
 *  Function:                                                       *
 *      Convert a Windows .pfm (Printer Font Metrics) file to a     *
 *      .afm (Adobe Font Metrics) file.  The purpose of this is     *
 *      to allow fonts put out for Windows to be used with OS/2.    *
 *                                                                  *
 *  Syntax:                                                         *
 *      pfm2afm  infile  [outfile] -a                               *
 *                                                                  *
 *  Copyright:                                                      *
 *      pfm2afm - Copyright (C) IBM Corp., 1991                     *
 *                                                                  *
 *      This code is released for public use as long as the         *
 *      copyright remains intact.  This code is provided asis       *
 *      without any warrenties, express or implied.                 *
 *                                                                  *
 *  Notes:                                                          *
 *      1. Much of the information in the original .afm file is     *
 *         lost when the .pfm file is created, and thus cannot be   *
 *         reconstructed by this utility.  This is especially true  *
 *         of data for characters not in the Windows character set. *
 *                                                                  *
 *      2. This module is coded to be compiled by the MSC 6.0.      *
 *         For other compilers, be careful of the packing of the    *
 *         PFM structure.                                           *
 *                                                                  *
 ********************************************************************/

/********************************************************************
 *                                                                  *
 *  Modifications by Rod Smith, 5/22/96                             *
 *                                                                  *
 *  These changes look for the strings "italic", "bold", "black",   *
 *  and "light" in the font's name and set the weight accordingly   *
 *  and adds an ItalicAngle line with a value of "0" or "-12.00".   *
 *  This allows OS/2 programs such as DeScribe to handle the bold   *
 *  and italic attributes appropriately, which was not the case     *
 *  when I used the original version on fonts from the KeyFonts     *
 *  Pro 2002 font CD.                                               *
 *                                                                  *
 *  I've also increased the size of the buffer used to load the     *
 *  .PFM file; the old size was inadequate for most of the fonts    *
 *  from the SoftKey collection.                                    *
 *                                                                  *
 *  Compiled with Watcom C 10.6                                     *
 *                                                                  *
 ********************************************************************/
 
/********************************************************************
 *                                                                  *
 *  Further modifications, 4/21/98, by Rod Smith                    *
 *                                                                  *
 *  Minor changes to get the program to compile with gcc under      *
 *  Linux (Red Hat 5.0, to be precise).  I had to add an itoa       *
 *  function from the net (the function was buggy, so I had to fix  *
 *  it, too!).  I also made the program more friendly towards       *
 *  files with mixed-case filenames.                                *
 *                                                                  *
 ********************************************************************/

/********************************************************************
 *                                                                  *
 *  1/31/2005, by Paulo Soares                                      *
 *                                                                  *
 *  This code was integrated into iText.                            * 
 *  Note that the itoa function mentioned in the comment by Rod     *
 *  Smith is no longer in the code because Java has native support  *
 *  in PrintWriter to convert integers to strings                   *
 *                                                                  *
 ********************************************************************/

/********************************************************************
 *                                                                  *
 *  7/16/2005, by Bruno Lowagie                                     *
 *                                                                  *
 *  I solved an Eclipse Warning.                                    *
 *                                                                  *
 ********************************************************************/

/********************************************************************
 *                                                                  *
 *  9/14/2006, by Xavier Le Vourch                                  *
 *                                                                  *
 *  expand import clauses (import java.io.*)                        *                                           
 *  the removal of an exception in readString was restored on 9/16  *
 *                                                                  *
 ********************************************************************/
package com.lowagie.text.pdf;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;

/**
 * Converts a PFM file into an AFM file.
 */
public final class Pfm2afm {
    private RandomAccessFileOrArray in;
    private PrintWriter out;
    
    /** Creates a new instance of Pfm2afm */
    private Pfm2afm(RandomAccessFileOrArray in, OutputStream out) throws IOException {
        this.in = in;
        this.out = new PrintWriter(new OutputStreamWriter(out, "ISO-8859-1"));
    }
    
    /**
     * Converts a PFM file into an AFM file.
     * @param in the PFM file
     * @param out the AFM file
     * @throws IOException on error
     */    
    public static void convert(RandomAccessFileOrArray in, OutputStream out) throws IOException {
        Pfm2afm p = new Pfm2afm(in, out);
        p.openpfm();
        p.putheader();
        p.putchartab();
        p.putkerntab();
        p.puttrailer();
        p.out.flush();
    }
    
    public static void main(String[] args) {
        try {
            RandomAccessFileOrArray in = new RandomAccessFileOrArray(args[0]);
            OutputStream out = new FileOutputStream(args[1]);
            convert(in, out);
            in.close();
            out.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    private String readString(int n) throws IOException {
        byte b[] = new byte[n];
        in.readFully(b);
        int k;
        for (k = 0; k < b.length; ++k) {
            if (b[k] == 0)
                break;
        }
        return new String(b, 0, k, "ISO-8859-1");
    }
    
    private String readString() throws IOException {
        StringBuffer buf = new StringBuffer();
        while (true) {
            int c = in.read();
            if (c <= 0)
                break;
            buf.append((char)c);
        }
        return buf.toString();
    }
    
    private void outval(int n) {
        out.print(' ');
        out.print(n);
    }
    
    /*
     *  Output a character entry
     */
    private void  outchar(int code, int width, String name) {
        out.print("C ");
        outval(code);
        out.print(" ; WX ");
        outval(width);
        if (name != null) {
            out.print(" ; N ");
            out.print(name);
        }
        out.print(" ;\n");
    }
    
    private void openpfm() throws IOException {
        in.seek(0);
        vers = in.readShortLE();
        h_len = in.readIntLE();
        copyright = readString(60);
        type = in.readShortLE();
        points = in.readShortLE();
        verres = in.readShortLE();
        horres = in.readShortLE();
        ascent = in.readShortLE();
        intleading = in.readShortLE();
        extleading = in.readShortLE();
        italic = (byte)in.read();
        uline = (byte)in.read();
        overs = (byte)in.read();
        weight = in.readShortLE();
        charset = (byte)in.read();
        pixwidth = in.readShortLE();
        pixheight = in.readShortLE();
        kind = (byte)in.read();
        avgwidth = in.readShortLE();
        maxwidth = in.readShortLE();
        firstchar = in.read();
        lastchar = in.read();
        defchar = (byte)in.read();
        brkchar = (byte)in.read();
        widthby = in.readShortLE();
        device = in.readIntLE();
        face = in.readIntLE();
        bits = in.readIntLE();
        bitoff = in.readIntLE();
        extlen = in.readShortLE();
        psext = in.readIntLE();
        chartab = in.readIntLE();
        res1 = in.readIntLE();
        kernpairs = in.readIntLE();
        res2 = in.readIntLE();
        fontname = in.readIntLE();