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lexus2k / lcdgfx

Driver for LCD displays running on Arduino/Avr/ESP32/Linux (including Rasperry) platforms
MIT License
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fontgenerator.py fails with exception #41

Closed julian-weinert closed 3 years ago

julian-weinert commented 3 years ago

I'm trying to convert a font using the included fontgenerator tool. I tried it on my Mac as well on a Debian 10 installation, using python 2.7 and also python 3.

Every time I try to convert a font the following error occurs 

python2.7 fontgenerator.py --ttf NiceFont-Medium.ttf -s 12 -d -f new > ~/Desktop/nice_font-12.h
Password:
Traceback (most recent call last):
  File "fontgenerator.py", line 151, in <module>
    source = ttfsource.TTFSource(fname, fsize)
  File "Arduino/libraries/lcdgfx/tools/modules/ttfsource.py", line 45, in __init__
    self.face = freetype.Face( filename )
  File "/Library/Python/2.7/site-packages/freetype/__init__.py", line 991, in __init__
    raise FT_Exception(error)
freetype.ft_errors.FT_Exception: FT_Exception:  (cannot open resource)

I first thought it might be a permission issue, but I tried it with sudo as well. Then I assumed it was one of the funny Apple things and switched to my Debian installation which failed in exactly the same manner.

lexus2k commented 3 years ago

Hi @julian-weinert

It looks like the problem with Python freetype library. I would advise you to rename font to the name without dash. If the problem still persists, submit the issue to freetype library. The following code fails to pass:

    import freetype
    font = freetype.Face( "NiceFont-Medium.ttf" )

Another possible root cause is the path to the font file. Please, check that the path is correct.

Best regards.

julian-weinert commented 3 years ago

Sorry for getting back to you so late. Yes, I agree it must be an issue with the freetype library. It seems that its name matching is broken.

When I specifying the full path as you suggested it works. Thanks for the help