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fonts/glyph_replacement

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/* $Id: glyph_replacement.java,v 1.6 2013/01/15 10:11:58 stm Exp $

 * Glyph replacement:

 * Show the effects of glyph substitution in case of glyphs missing in the font

 *

 * Load the font and specify a replacement character to be used to output

 * missing glyphs.

 * Demonstrate various notations to output the Euro sign as U+20AC which is

 * available in the font.

 * Then, various notations to output the ligature "ffi" are shown, the glyph of

 * which is available in the font.

 * Output the glyph for an alternative g which is available in the font.

 * Output the glyph for an alternative s which is not available in the font.

 * Output the glyph for the ligature "st" which is not available in the font.

 * Use the "glyphcheck=replace" or "glyphcheck=none" option to determine if the

 * missing glyph will be replaced. Depending on the "glyphcheck" setting the

 * ligature "st" will be replaced by the two characters "s" and "t".

 * Output the Ohm glyph which is not available in the font. Depending on the

 * "glyphcheck" setting it will be replaced by the Omega character.

 *

 * Required software: PDFlib/PDFlib+PDI/PPS 9

 * Required data: font file

 */

package com.pdflib.cookbook.pdflib.fonts;


import com.pdflib.pdflib;

import com.pdflib.PDFlibException;


public class glyph_replacement

{

public static void main (String argv[])

    {

    /* This is where the data files are. Adjust as necessary. */

    String searchpath = "../input";

    String outfile = "glyph_replacement.pdf";

    String title = "Glyph Replacement";


    pdflib p = null;

    int gfont, hfont, hbfont, x=30, x2=180, x3=360, x4=520, y=550, yoff=30;

    String inp, repl, norepl;

   

    try {

        p = new pdflib();


        p.set_option("searchpath={" + searchpath + "}");

       

        /* This means we must check return values of load_font() etc. */

        p.set_option("errorpolicy=return");


        if (p.begin_document(outfile, "") == -1)

        throw new Exception("Error: " + p.get_errmsg());


        p.set_info("Creator", "PDFlib Cookbook");

        p.set_info("Title", title + " $Revision: 1.6 $");

       

        /* Load the font "Gentium-Italic" (see http://scripts.sil.org/gentium)

         * with "unicode" encoding.

         * "replacementchar=?" defines a question mark to be used for glyph

         * substitution in case of a missing glyph.

         */

        gfont = p.load_font("GenI102", "unicode", "replacementchar=?");

        if (gfont == -1)

            throw new Exception("Error: " + p.get_errmsg());

       

        /* Load the Helvetica font */

        hfont = p.load_font("Helvetica", "unicode", "");

        if (hfont == -1)

            throw new Exception("Error: " + p.get_errmsg());

       

        /* Load the Helvetica-Bold font */

        hbfont = p.load_font("Helvetica-Bold", "unicode", "");

        if (hbfont == -1)

            throw new Exception("Error: " + p.get_errmsg());

       

       

        /* Start page */

        p.begin_page_ext(0, 0, "width=a4.height height=a4.width");

               

       

        /* Define three option lists for fit_textline().

         * The "inp" option list is just for descriptive text.

         * The "repl" option list enables the interpretation of character

         * references using "charref" and uses glyph substitution which is

         * enabled by default ("glyphcheck=replace").

         * The second option list enables the interpretation of character

         * references using "charref" but explicitly disables glyph

         * substitution. Alternatively, glyph substitution can be disabled

         * with p.set_option("glyphcheck=none");

         */

        inp = "font=" + hfont + " fontsize=14";

        repl = "charref font=" + gfont + " fontsize=22";

        norepl = "charref glyphcheck=none font=" + gfont + " fontsize=22";

       

        /* Output some descriptive header lines for the input, output, and

         * remark column

         */

        p.fit_textline("Glyphs in the Gentium-Italic font", x, y,

            "font=" + hbfont + " fontsize=16");

        String opts = " underline underlinewidth=1";

        p.fit_textline("Input", x, y-=2*yoff, inp + opts);

        p.fit_textline("Output", x2, y, inp + opts);

        p.fit_textline("Remark", x4, y, inp + opts);

        p.fit_textline("glyphcheck=replace", x2, y-=yoff, inp + opts);

        p.fit_textline("glyphcheck=none", x3, y, inp + opts);

       

       

        /* ------------------------------------------------------------------

         * Use various notations to output the Euro symbol as U+20AC which is

         * available in the font.

         * ------------------------------------------------------------------

         */

       

        /* Java Unicode notation,

         * The first string "\\u20AC" is a descriptive text and results in an

         * output of "\u20AC" since the two slashes are resolved by the Java

         * compiler to one slash.

         */

        p.fit_textline("\\u20AC", x, y-=yoff, inp)

        p.fit_textline("\u20AC", x2, y, repl);       

        p.fit_textline("\u20AC", x3, y, norepl);

        p.fit_textline("selected glyph available in the font", x4, y, inp);

       

        /* Character reference in HTML style with hexadecimal number */

        p.fit_textline("€", x, y-=yoff, inp);

        p.fit_textline("€", x2, y, repl);

        p.fit_textline("€", x3, y, norepl);

        p.fit_textline("selected glyph available in the font", x4, y, inp);

       

        /* Character reference in HTML style with decimal number */

        p.fit_textline("€", x, y-=yoff, inp);

        p.fit_textline("€", x2, y, repl);

        p.fit_textline("€", x3, y, norepl);

        p.fit_textline("selected glyph available in the font", x4, y, inp);

       

        /* Character reference in HTML style with entity name */

        p.fit_textline("€", x, y-=yoff, inp);

        p.fit_textline("€", x2, y, repl);

        p.fit_textline("€", x3, y, norepl);

        p.fit_textline("selected glyph available in the font", x4, y, inp);

       

        /* Character reference using a glyph name provided by the font or the

         * Adobe Glyph List (AGL)

         */

        p.fit_textline("&.Euro;", x, y-=yoff, inp);

        p.fit_textline("&.Euro;", x2, y, repl);

        p.fit_textline("&.Euro;", x3, y, norepl);

        p.fit_textline("selected glyph available in the font", x4, y, inp);

       

        /* Character reference using a glyph name provided by the Adobe Glyph

         * list (AGL)

         */

        p.fit_textline("&.uni20AC;", x, y-=yoff, inp);

        p.fit_textline("&.uni20AC;", x2, y, repl);

        p.fit_textline("&.uni20AC;", x3, y, norepl);

        p.fit_textline("selected glyph available in the font", x4, y, inp);

       


        /* ---------------------------------------------------------------------

         * Use various notations to output the ligature "ffi" which is available

         * in the font

         * ---------------------------------------------------------------------

         */

       

        /* Java Unicode notation,

         * The first string "\\uFB03" is a descriptive text and results in an

         * output of "\uFB03" since the two slashes are resolved by the Java

         * compiler to one slash.

         */

        p.fit_textline("\\uFB03", x, y-=yoff, inp);

        p.fit_textline("\uFB03", x2, y, repl);

        p.fit_textline("\uFB03", x3, y, norepl);

        p.fit_textline("ffi ligature available in the font", x4, y, inp);

       

        /* Character reference using a glyph name provided by the font or the

         * Adobe Glyph List (AGL)

         */

        p.fit_textline("&.ffi;", x, y-=yoff, inp);

        p.fit_textline("&.ffi;", x2, y, repl);

        p.fit_textline("&.ffi;", x3, y, norepl);

        p.fit_textline("ffi ligature available in the font", x4, y, inp);

               

       

        /* ---------------------------------------------------------------------

         * Output the glyph for the ligature "st" which is not available in the

         * font. It will be replaced by the two glyphs "s" and "t".

         * ---------------------------------------------------------------------

         */

       

        /* Java Unicode notation,

         * The first string "\\uFB06" is a descriptive text and results in an

         * output of "\uFB06" since the two slashes are resolved by the Java

         * compiler to one slash.

         */

        p.fit_textline("\\uFB06", x, y-=yoff, inp);

        p.fit_textline("\uFB06", x2, y, repl);

        p.fit_textline("\uFB06", x3, y, norepl);

        p.fit_textline("unavailable st ligature replaced with s and t glyphs",

            x4, y, inp);

       

       

        /* --------------------------------------------------------------------

         * Output the glyph for an alternative g which is available in the font

         * --------------------------------------------------------------------

         */

        p.fit_textline("&.g.alt;", x, y-=yoff, inp);     

        p.fit_textline("&.g.alt;", x2, y, repl);

        p.fit_textline("&.g.alt;", x3, y, norepl);

        p.fit_textline("g.alt variant glyph available in the font", x4, y, inp);

       

       

        /* -------------------------------------------------------------------

         * Output the Ohm glyph which is not available in the font. It will be

         * replaced by the Omega character.

         * -------------------------------------------------------------------

         */

        p.fit_textline("&.Ohm;", x, y-=yoff, inp);

        p.fit_textline("&.Ohm;", x2, y, repl);

        p.fit_textline("&.Ohm;", x3, y, norepl);

        p.fit_textline("unavailable Ohm replaced by Omega glyph", x4, y, inp);

       

        /* Finish page */

        p.end_page_ext("");


        p.end_document("");


        } catch (PDFlibException e) {

            System.err.print("PDFlib exception occurred:\n");

            System.err.print("[" + e.get_errnum() + "] " + e.get_apiname() +

                ": " + e.get_errmsg() + "\n");

        } catch (Exception e) {

            System.err.println(e.getMessage());

        } finally {

            if (p != null) {

                p.delete();

            }

        }

    }

}