cocoa - How to insert emoji into NSTextView without shifting the line down? -


how insert emoji nstextview without moving line down?

if insert emoji character nstextview, whole line shift down couple pixels. if remove emoji character, move original position.

on other hand, if insert emoji nstextfield, line doesn't move @ all, when text in line same font , size in nstextview.

enter image description here

you can see behavior in textedit. when typing in main editor area (an nstextview), emoji make lines move down. when typing in find search bar (nstextfield) emoji don't affect line position.

i've tried setting typingattributes various nsparagraphstyle settings (lineheight, linespacing, lineheightmultiple, max/minlineheight) , raising or lowering baseline no avail. in fact, of these settings don't emoji behavior, mess vertical alignment of spelling error indicators.


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