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fonts/character_references

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/* $Id: character_references.java,v 1.10 2013/01/15 10:11:58 stm Exp $

 * Character references:

 * Demonstrate the usefulness of character references, using a suitable font.

 *

 * Output text containing a character with the glyph name "g.alt". Output the

 * Euro glyph via a character reference by name or by numerical value.

 *

 * 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 character_references

{

public static void main (String argv[])

    {

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

    String searchpath = "../input";

    String outfile = "character_references.pdf";

    String title = "Character References";


    pdflib p = null;

    int gentiumfont, courierfont;

    int x=20, y=220, width=300, height=300;


    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: 1.10 $");


        /* Load the font "Gentium-Italic" with unicode encoding

         * (see http://scripts.sil.org/gentium)

         */

        gentiumfont = p.load_font("GenI102", "unicode", "");

        if (gentiumfont == -1)

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


        /* Load the font "Courier" */

        courierfont = p.load_font("Courier", "unicode", "");

        if (courierfont == -1)

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



        /* Start page */

        p.begin_page_ext(width, height, "");


        p.fit_textline("Input", x, y, "font=" + courierfont + " fontsize=16");

        p.fit_textline("Output", x+160, y, "font=" + gentiumfont +

            " fontsize=20");



        /* Select a glyph via a character reference which refers to the glyph

         * name. Use the "charref" option to enable the character referencing

         * feature.

         */


        /* First for comparison purposes output the text with the usual glyph "g" */

        p.fit_textline("Wing", x, y-=30, "font=" + courierfont +

            " fontsize=16");

        p.fit_textline("Wing", x+160, y, "font=" + gentiumfont +

            " fontsize=20 charref");


        /* With the "Gentium-Italic" font, output the text "Wing" containing

         * a character with the glyph name "g.alt". (Such a glyph name is used

         * to choose among multiple glyphs in the font which have the same

         * Unicode value and therefore cannot uniquely be addressed via Unicode

         * values.) "g.alt" is addressed via a character reference by name

         * "&.g.alt;"

         */

        p.fit_textline("Win&.g.alt;", x, y-=23, "font=" + courierfont +

            " fontsize=16");

        p.fit_textline("Win&.g.alt;", x+160, y, "font=" + gentiumfont +

            " fontsize=20 charref");


        /* Output the Euro glyph via a character reference by name */

        p.fit_textline("500 €", x, y-=23, "font=" + courierfont +

            " fontsize=16");

        p.fit_textline("500 €", x+160, y, "font=" + gentiumfont +

            " fontsize=20 charref");


        /* Output the Euro glyph via a character reference by numerical value */

        p.fit_textline("500 €", x, y-=23, "font=" + courierfont +

            " fontsize=16");

        p.fit_textline("500 €", x+160, y, "font=" + gentiumfont +

            " fontsize=20 charref");


        /* 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();

            }

        }

    }

}