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#1 Posted : Tuesday, November 28, 2017 4:01:50 PM(UTC)

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Me again, although I'm still trying to solve my Font issue, I'm also weighing my options for speed considerations in case there is more than one way to handle these types of problems.

My question is regarding the FileSystemSource.

customResolver.AddSource(new FileSystemSource(fontCache));

How does this work? What is the IFontSource expecting to find on the file system? TTF files with the appropriate Family or PostScript name?
Eugene Kosmin  
#2 Posted : Tuesday, November 28, 2017 5:15:15 PM(UTC)
Eugene Kosmin

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The logic is pretty straightforward. You pass a path as an argument for this object. Then it gets all files from the path and builds a dictionary with postscript names and actual file paths.

When FontResolver wants to get a font by its postscript name, FileSystemSource checks the dictionary and, if it finds the name, makes a copy of the font file to the cache directory and returns its path. As I wrote before, only postscript name is used for font identification. Not family name, it can be the same for a bunch of fonts.

It's pretty close to your implementation of IFontSource from the related topic.

It makes sense to use FileSystemSource with cache path because getting a font from online sources usually takes a long time. If you don't need to use online sources, you can just fill CustomFontRegistry will your locally stored fonts. The effect will be the same.
Best regards,
Eugene Kosmin
The Aurigma Development Team
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