Andreas Kling b07a19e35f LibWeb: Account for letter-spacing when trimming trailing whitespace ...

When trimming trailing whitespace from line boxes, we were only
subtracting the glyph width of each trimmed character. However, during
text shaping, letter-spacing is added to each glyph's advance width.
We must subtract the full advance (glyph width + letter-spacing) to
get an accurate line width after trimming.

This also fixes a pre-existing precision bug where the glyph width
(a float) was truncated to int, leaving fractional phantom width in
the line box.

Together, these issues caused text with letter-spacing and trailing
HTML whitespace to have an underestimated intrinsic width, leading to
unexpected text wrapping in flex layouts.

2026-03-21 21:42:44 -05:00

6.1 KiB

Raw Blame History

View Raw