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----- Original Message -----
From: Hans Oesterholt-Dijkema
To: [email protected]
Sent: Sunday, August 29, 2010 8:54 AM
Subject: [iText-questions] FontMapper enhancement
L.S.,
The default font mapper of iText is not very efficient. It scans whole
directories for fonts, opens every font file for font parameters and fills the
names and aliases hashmaps.
I think it could be implemented more efficient if it allows for persisting
the font parameters associated with a path. However, one also wants to track
changes in the font directories. So I would propose the following change to the
DefaultFontMapper code:
*******************************************************************************
public void insertFile(File file) {
String name = file.getPath().toLowerCase();
try {
if (name.endsWith(".ttf") || name.endsWith(".otf") ||
name.endsWith(".afm")) {
Object allNames[] =
BaseFont.getAllFontNames(file.getPath(), BaseFont.CP1252, null);
insertNames(allNames, file.getPath());
++count;
}
else if (name.endsWith(".ttc")) {
String ttcs[] =
BaseFont.enumerateTTCNames(file.getPath());
for (int j = 0; j < ttcs.length; ++j) {
String nt = file.getPath() + "," + j;
Object allNames[] = BaseFont.getAllFontNames(nt,
BaseFont.CP1252, null);
insertNames(allNames, nt);
}
++count;
}
}
catch (Exception e) {
}
}
/** Inserts all the fonts recognized by iText in the
* <CODE>directory</CODE> into the map. The encoding
* will be <CODE>BaseFont.CP1252</CODE> but can be
* changed later.
* @param dir the directory to scan
* @return the number of files processed
*/
public int insertDirectory(String dir) {
File file = new File(dir);
if (!file.exists() || !file.isDirectory())
return 0;
File files[] = file.listFiles();
if (files == null)
return 0;
int count = 0;
for (int k = 0; k < files.length; ++k) {
insertFile(files[k]);
}
return count;
}
*******************************************************************************
This allows programmers to override 'insertNames()' and 'insertFile()' to
build
up a persistent fontmapper cache, while still be able to track changes in the
font directories.
Best regards,
Hans Oesterholt.
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