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Tilman,
On 3/2/19 10:00, Tilman Hausherr wrote:
> Am 02.03.2019 um 15:54 schrieb Christopher Schultz:
>> Is there a good way to probe text to determine whether or not an
>> alternate font will be necessary and only load/bundle it then?
>
> From the new EmbeddedMultipleFonts.java example (in the source
> code download):
>
>
> boolean isWinAnsiEncoding(int unicode) { String name =
> GlyphList.getAdobeGlyphList().codePointToName(unicode); if
> (".notdef".equals(name)) { return false; } return
> WinAnsiEncoding.INSTANCE.contains(name); }
>
>
> When that one returns true, you can use the built-in fonts.
Okay, I see that. Is there any reason not to do this?
boolean isWinAnsiEncoding(int unicode)
{
return WinAnsiEncoding.INSTANCE.contains(unicode);
}
?
Is there nothing like PDFont.isSupportedCodePoint(unicode) available?
I didn't see anything. It looks more like the standard way to check is t
o:
try {
page.showText(text);
} catch (IllegalArgumentException iae) {
page.setFont(alternateFont);
page.showText(text);
}
If that's SOP, then maybe there is no real reason to bother checking
whether the String will work in the first place... just try it and try
again if the operation fails?
Catching IllegalArgumentException seems ugly, though. Maybe PDFBox
could subclass IllegalArgumentException with something more narrow
like IllegalCodePointException and throw that instead? It would be
backward-compatible and also one could determine the root cause
without parsing the exception message to see what the problem was.
I'm happy to provide a patch.
- -chris
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