fonts/glyph_availability
Check the availability of glyphs in a font.
Load a font with "winansi" encoding and check using info_font() with the "code" keyword if the font contains the glyphs you need.
Then. load the font with "unicode" encoding and check using info_font() with the "glyphid" or "glyphname" options if the font contains particular glyphs.
Download Java Code Show Output PDF
* Glyph availability:
* Check the availability of glyphs in a font
*
* Load a font with "winansi" encoding and check using info_font() with the
* "code" keyword if the font contains the glyphs you need.
* Then. load the font with "unicode" encoding and check using info_font() with
* the "glyphid" or "glyphname" options if the font contains particular glyphs.
*
* Required software: PDFlib/PDFlib+PDI/PPS 7
* Required data: font file
*/
package com.pdflib.cookbook.pdflib.fonts;
import com.pdflib.pdflib;
import com.pdflib.PDFlibException;
public class glyph_availability
{
public static void main (String argv[])
{
/* This is where the data files are. Adjust as necessary. */
String searchpath = "../input";
String outfile = "glyph_availability.pdf";
String title = "Glyph Availability";
pdflib p = null;
int font, x=30, y=700, yoff=30;
double info = -1;
String istr;
try {
p = new pdflib();
p.set_parameter("SearchPath", searchpath);
/* This means we must check return values of load_font() etc. */
p.set_parameter("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: 1.1 $");
/* Start page */
p.begin_page_ext(0, 0, "width=a4.width height=a4.height");
/* -------------------------------------------------------
* In the first case, load the font with an 8-bit encoding
* and perform a glyph check
* -------------------------------------------------------
*/
/* Load the font "Gentium-Italic" (see http://scripts.sil.org/gentium)
* with "winansi" encoding and "embedding"
*
*/
font = p.load_font("GenI102", "winansi", "embedding");
if (font == -1)
throw new Exception("Error: " + p.get_errmsg());
p.setfont(font, 22);
/* Output some descriptive text */
p.fit_textline("Check the Gentium-Italic font loaded with \"winansi\"" +
" encoding", x, y, "");
/* Check whether the Euro glyph is contained in a font by retrieving its
* code. The "unicode" option expects a Unichar. For Unichars, glyph
* name references are always used in lowercase letters without the &
* and ; decoration. This is safer than checking the glyph name which
* may be euro, Euro, or something different.
*/
info = p.info_font(font, "code", "unicode=euro");
if (info > -1) {
/* Output the Euro glyph via a character reference by name. Then,
* output the code retrieved.
*/
p.fit_textline("The Euro glyph is available: € Code: " +
Integer.toString((int) info), x, y-=yoff, "charref");
}
else {
p.fit_textline("No glyph for Euro available", x, y-=yoff, "");
}
y-=yoff;
/* ---------------------------------------------------------
* In the second case, load the font with "unicode" encoding
* and perform various glyph check
* ---------------------------------------------------------
*/
/* Load the font "Gentium-Italic" with "unicode" encoding
* (see http://scripts.sil.org/gentium)
*/
font = p.load_font("GenI102", "unicode", "");
if (font == -1)
throw new Exception("Error: " + p.get_errmsg());
p.setfont(font, 22);
/* Output some descriptive text */
p.fit_textline("Check the Gentium-Italic font loaded with \"unicode\"" +
" encoding", x, y-=yoff, "");
/* Check if the Euro glyph is contained in the font by using
* info_font() with the "glyphname" keyword and the "unicode" option
* with a character reference by name
*/
info = p.info_font(font, "glyphname", "unicode=euro");
if (info > -1) {
/* Output the Euro glyph via a character reference by name. Then,
* output the glyph name retrieved.
*/
istr = p.get_parameter("string", info);
p.fit_textline("The Euro glyph is available: € " +
"Glyph name: " + istr, x, y-=yoff, "charref");
}
else {
p.fit_textline("No glyph for Euro available", x, y-=yoff, "");
}
/* Check if the glyph for the Polish "zacute" character is contained
* in the font by using info_font() with the "glyphname" keyword and the
* "unicode" option with the Unicode value
*/
info = p.info_font(font, "glyphname", "unicode=U+017A");
if (info > -1) {
/* Output the Polish zacute glyph via the Unicode value. Then,
* output the glyph name retrieved.
*/
istr = p.get_parameter("string", info);
p.fit_textline("The zacute glyph is available: \u017A " +
"Glyph name: " + istr, x, y-=yoff, "charref");
}
else {
p.fit_textline("No glyph for zacute available", x, y-=yoff, "");
}
/* Check if the glyph for the Russian "ya" character is contained in the
* font by using info_font() with the "glyphid" keyword and the
* "unicode" option with the Unicode value
*/
info = p.info_font(font, "glyphid", "unicode=U+042F");
if (info > -1) {
/* Output the ya glyph via the Unicode value. Then, output the
* glyph id retrieved
*/
p.fit_textline("The glyph for Russian ya is available: \u042F" +
" Glyph id: " + info, x, y-=yoff, "charref");
}
else {
p.fit_textline("No glyph for Russian ya available", x, y-=yoff, "");
}
/* Check if the glyph for the alternative g character is contained in
* the font by using info_font() with the "glyphid" keyword and the
* "unicode" option with the glyph name
*/
info = p.info_font(font, "glyphid", "unicode=.g.alt");
if (info > -1) {
/* Output the alternative g glyph via a character reference by
* name. Then, output the glyph id.
*/
p.fit_textline("The glyph for alternative g is available: " +
"&.g.alt; Glyph id: " + Integer.toString((int) info),
x, y-=yoff, "charref");
}
else {
p.fit_textline("No glyph for alternative g available",
x, y-=yoff, "");
}
/* 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();
}
}
}
}