Re: Maybe it is a tiny bug

"'Neil Hodgson' via scintilla-interest" <[email protected]>
Newsgroups gmane.comp.lib.scintilla.devel
Message-ID <[email protected]>
Kevin Wang:

> I find the below. The left face is drawn by Scintilla, and the right fact is drawn directly by using DirectWrite and Direct2D. You can see there seems to be one line missing in the left face.

   Emoji are not present in most fonts and instead are substituted in from another font. The emoji font is often taller than the requested font and isn't considered when calculating line height.

   Scintilla often uses completely distinct lines so the top pixel may be obscured by the preceding line. This can be changed to allow some overlapping, with a small performance cost, by 
SCI_SETPHASESDRAW(SC_PHASES_MULTIPLE)

https://scintilla.org/ScintillaDoc.html#SCI_SETPHASESDRAW

   Neil

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