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fix(extmarks): blending space shouldn't overwrite wide char (#26960)

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zeertzjq 2024-01-09 19:16:44 +08:00 committed by GitHub
parent b2c92eebc0
commit d54156ed08
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2 changed files with 38 additions and 1 deletions
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2
src/nvim/drawline.c
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@ -337,7 +337,7 @@ static int draw_virt_text_item(buf_T *buf, int col, VirtText vt, HlMode hl_mode,
schar_T dummy[2] = { schar_from_ascii(' '), schar_from_ascii(' ') };
int maxcells = max_col - col;
// When overwriting the right half of a double-width char, clear the left half.
if (linebuf_char[col] == 0) {
if (!through && linebuf_char[col] == 0) {
assert(col > 0);
linebuf_char[col - 1] = schar_from_ascii(' ');
// Clear the right half as well for the assertion in line_putchar().

37
test/functional/ui/decorations_spec.lua
View File

@ -2112,6 +2112,43 @@ describe('extmark decorations', function()
]]}
end)
it('virtual text blending space does not overwrite double-width char', function()
screen:try_resize(50, 3)
insert('abcdefghij口klmnopqrstu口vwx口yz')
feed('0')
command('hi Blendy guibg=Red blend=30')
meths.buf_set_extmark(0, ns, 0, 0, { virt_text = {{' ! ! ', 'Blendy'}}, virt_text_win_col = 8, hl_mode = 'blend' })
screen:expect{grid=[[
^abcdefgh{10:i}{7:!}{10:口}{7:!}{10:l}mnopqrstu口vwx口yz |
{1:~ }|
|
]]}
feed('x')
screen:expect{grid=[[
^bcdefghi{10:j}{7:!}{10: k}{7:!}{10:m}nopqrstu口vwx口yz |
{1:~ }|
|
]]}
feed('x')
screen:expect{grid=[[
^cdefghij{10: }{7:!}{10:kl}{7:!}{10:n}opqrstu口vwx口yz |
{1:~ }|
|
]]}
feed('x')
screen:expect{grid=[[
^defghij口{7:!}{10:lm}{7:!}{10:o}pqrstu口vwx口yz |
{1:~ }|
|
]]}
feed('7x')
screen:expect{grid=[[
^口klmnop{10:q}{7:!}{10:st}{7:!}{10:口}vwx口yz |
{1:~ }|
|
]]}
end)
it('virtual text works with double-width char and rightleft', function()
screen:try_resize(50, 3)
insert('abcdefghij口klmnopqrstu口vwx口yz')