[Cuis-dev] TrueType font import problems

[Juan Vuletich]

Fix now at GitHub.

Thanks!

On 9/11/2023 5:07 PM, Bernhard Pieber via Cuis-dev wrote:
> Hi Juan,
>
> Thanks for improving this. I had problems getting it to work, though.
>
> At first I tried this:
> TrueTypeFontFamily readTrueTypeFontEntry: '/System/Library/Fonts' asDirectoryEntry // 'Optima.ttc'.
>
> However, this method still has the old behavior: Optima ExtraBlack replaces Optima Regular as the baseTTFontDescription.
>
> After some digging I found I needed to copy Optima.ttc to its own directory and use this method instead:
> TrueTypeFontFamily readAllTrueTypeFontsIn: DirectoryEntry smalltalkImageDirectory / 'TrueTypeFonts' / 'Optima'.
>
> This works as you described. Now I two families Optima and Optima-ExtraBlack.
>
> The method TrueTypeFontFamily<<#readTrueTypeFontEntry: is used when installing a font file from a file list, so it should probably be fixed as well.
>
> Cheers,
> Bernhard
>
>
> ------- Original Message -------
> Juan Vuletich<juan at cuis.st>  schrieb am Mittwoch, 30. August 2023 um 01:00:
>
>
>>
>> Hi Bernhard,
>>
>> I pushed your fix to support V2 headers.
>>
>> But I also did a few more things. When importing fonts like Optima,
>> ExtraBlack and other styles beyond regular / italic / bold / bold italic
>> will be turned into different FontFamilies.
>>
>> I also changed the handling of fonts and sizes in TextEditors quite a
>> bit. I think it is nicer now.
>>
>> Please pull, update, and test.
>>
>> Thanks,
>>
>>
>> On 8/27/2023 5:23 AM, Bernhard Pieber via Cuis-dev wrote:
>>
>>> Here is a slightly improved version.
>>>
>>>> Am 26.08.2023 um 20:59 schrieb Bernhard Pieber via Cuis-devcuis-dev at lists.cuis.st:
>>>>
>>>> Hi everyone,
>>>>
>>>> I tried importing a TrueType font I had on my system (Optima.ttc). I copied the file to a new folder named Fonts and used the following:
>>>> TrueTypeFontFamily readAllTrueTypeFontsIn: DirectoryEntry currentDirectory / 'Fonts'
>>>>
>>>> This resulted in the error "This TTF Collection has an unsupported header version“ in TTFontReader>>#readTTCFontFrom:.
>>>>
>>>> The reason is that the font uses a TTC Header Version 2.0, see:
>>>> https://docs.fileformat.com/font/ttc/
>>>>
>>>> I changed the code to allow both header versions. If I understand the difference between version 1 and 2 of the header formats correctly, this should be a safe change. Installing the font worked with this change.
>>>>
>>>> However, instead of Optima Regular it used Optima ExtraBlack when I selected Optima as the font. I found no way to select Optimal Regular as the font style.
>>>>
>>>> Optima.ttc contains five styles:
>>>> Optima Regular
>>>> Optima Italic
>>>> Optima Bold
>>>> Optima Bold Italic
>>>> Optima ExtraBlack
>>>>
>>>> The code for importing the TTC file imports all 5 styles:
>>>> TTFontReader readTTCFrom: (DirectoryEntry currentDirectory / 'Fonts' // 'Optima.ttc') binaryContents.
>>>>
>>>> However, only 4 of those 5 are saved in the font family:
>>>> TrueTypeFontFamily availableFamilies at: 'Optima'
>>>>
>>>> There seems to be a restriction TrueTypeFontFamily that there can only be one font variant per TextEmphasis combination.
>>>>
>>>> As a workaround I changed TTFontDescription>>#emphasis to identify Black as Bold. Now Optima Regular is used as default. However, I cannot use Optima Bold now.
>>>>
>>>> I attach the ChangeSet with the fix and the workaround.
>>>>
>>>> Given that we use only TrueType fonts now, I think the best solution would be to remove bold an italic from TextEmphasis and use the all variants of the TrueType font families instead.
>>>>
>>>> By the way, is there a package with a nice font viewer?
>>>>
>>>> Cheers,
>>>> Bernhard
>>>> --
>>>> Cuis-dev mailing list
>>>> Cuis-dev at lists.cuis.st
>>>> https://lists.cuis.st/mailman/listinfo/cuis-dev
>>>> <5984-CuisCore-BernhardPieber-2023Aug26-15h22m-bp.001.cs.st>
>>
>>
>> --
>> Juan Vuletich
>> cuis.st
>> github.com/jvuletich
>> researchgate.net/profile/Juan-Vuletich
>> independent.academia.edu/JuanVuletich
>> patents.justia.com/inventor/juan-manuel-vuletich
>> linkedin.com/in/juan-vuletich-75611b3
>> twitter.com/JuanVuletich


-- 
Juan Vuletich
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