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Ensure double underline is gapped even when underline thickness is less than three pixels

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Kovid Goyal 2017-12-05 11:42:35 +05:30
parent f2d00589d8
commit e8441ce697
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 13 additions and 2 deletions
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15
kitty/fonts/render.py
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@ -79,8 +79,19 @@ def add_line(buf, cell_width, position, thickness, cell_height):
def add_dline(buf, cell_width, position, thickness, cell_height):
bottom = min(position - thickness, cell_height - 1)
top = min(position, cell_height - 1)
a = min(position - thickness, cell_height - 1)
b = min(position, cell_height - 1)
top, bottom = min(a, b), max(a, b)
deficit = 2 - (bottom - top)
if deficit > 0:
if bottom + deficit < cell_height:
bottom += deficit
elif bottom < cell_height - 1:
bottom += 1
if deficit > 1:
top -= deficit - 1
else:
top -= deficit
for y in {top, bottom}:
ctypes.memset(ctypes.addressof(buf) + (cell_width * y), 255, cell_width)