Load kerning strings from file

ammazzarella · May 31, 2022, 11:14am

Hi! In G2 it was possible to load kerning strings from a txt file (easy to update the strings once, and simply reload the file on multiple computers). Is this no longer possible in G3?

SCarewe · May 31, 2022, 1:59pm

How do you mean? I am not familiar with this feature, but this sounds like an ideal opportunity for a script. Can you describe how you want it to work? Maybe I can quickly write something.

ammazzarella · May 31, 2022, 2:12pm

This is from G2: the Open File button allows to select a .txt to be used as source for strings.

SCarewe · May 31, 2022, 2:18pm

From what I can tell, this simply copies the text from the imported file, but does not dynamically update the text if the file is changed. Writing this in a script wouldn’t be too difficult: Just copy the contents of a .txt file into the sample strings, nothing more. Is that what you are looking for?

SCarewe · May 31, 2022, 2:25pm

Then again, I can’t find the documentation for the sample strings in the Python doc, or in the core doc. Is this accessible? (@FlorianPircher)

FlorianPircher · May 31, 2022, 2:43pm

In Glyphs 3, sample strings are stored as a list of dictionaries where each dictionary has two keys, name (the name of the sample string as shown in the sidebar in the sample string preferences) and text (the actual sample string).

Have a look at this code from the @mekkablue scripts that appends a new sample strings entry to the existing sample strings:

github.com

mekkablue/Glyphs-Scripts/blob/c95ee937c9e0c6f36ef4dd1eab67a6a4beb9348a/Kerning/sampleText.py#L66-L83

      
        
            			# Glyphs 3 code
            			
            			kernStringLines = "\n".join(kernStrings)
            			newKernStringEntry = dict( name=marker, text=kernStringLines )
            			sampleTexts = Glyphs.defaults["SampleTextsList"].mutableCopy()
            
            
			# clear old kern strings with same marker:
            			indexesToRemove = []
            			for index, sampleTextEntry in enumerate(sampleTexts):
            				if sampleTextEntry["name"] == marker: # there could be multiple ones
            					indexesToRemove.append(index)
            			for index in reversed(indexesToRemove):
            				sampleTexts.removeObjectAtIndex_(index)
            			
            			# build new kern string entry :
            			sampleTexts.append(newKernStringEntry)
            			
            			Glyphs.defaults["SampleTextsList"] = sampleTexts

ammazzarella · May 31, 2022, 3:31pm

Yes. Having a file stored somewhere (sometimes even next to the source files) that can be updated and then locally loaded (even if not dynamically updated) seemed like a cleaner process. Not sure why that function has disappeared.

SCarewe · May 31, 2022, 3:41pm

Thank you! I was looking at Rainer’s Sample String Maker, but didn’t find anything in that direction. Should have just checked the other script, too

I’ll have a look at this.

Dezcom · May 31, 2022, 6:31pm

Over the years, I have put together a group of test files. I just copy the text and paste it into the kerning window–very easy