Torben Thaysen b76d2450fa LibGUI: drawing spanned text no longer *horribly* inefficient ...

This makes drawing text with spans a lot faster.
The previous implentation went character by character and then
checked every span whether it contained the current character.

This implentation asumes that the spans are sorted and goes span by
span drawing all the characters contained at once.
Any spans that are out of order will be ignored!

Note: text wrapping is not (yet) supported

2021-03-01 09:16:07 +01:00

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