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vim-patch:9.0.1603: display wrong if scrolling multiple lines with 'smoothscroll'

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Problem:    Display wrong when scrolling multiple lines with 'smoothscroll'
            set.
Solution:   Redraw when w_skipcol changed. (closes vim/vim#12477, closes vim/vim#12468)

3c80227760
This commit is contained in:
zeertzjq 2023-06-06 06:26:13 +08:00
parent c1ee187f82
commit 9978a9996d
3 changed files with 69 additions and 3 deletions
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6
src/nvim/move.c
View File

@ -1345,6 +1345,7 @@ bool scrollup(long line_count, int byfold)
int width2 = width1 + curwin_col_off2();
unsigned size = 0;
linenr_T prev_topline = curwin->w_topline;
const colnr_T prev_skipcol = curwin->w_skipcol;
if (do_sms) {
size = linetabsize(curwin, curwin->w_topline);
@ -1396,8 +1397,9 @@ bool scrollup(long line_count, int byfold)
}
}
if (curwin->w_topline == prev_topline) {
// need to redraw even though w_topline didn't change
if (curwin->w_topline == prev_topline
|| curwin->w_skipcol != prev_skipcol) {
// need to redraw because wl_size of the topline may now be invalid
redraw_later(curwin, UPD_NOT_VALID);
}
} else {

42
test/functional/legacy/scroll_opt_spec.lua
View File

@ -865,6 +865,48 @@ describe('smoothscroll', function()
]])
end)
-- oldtest: Test_smoothscroll_multi_skipcol()
it('scrolling mulitple lines and stopping at non-zero skipcol', function()
screen:try_resize(40, 10)
screen:set_default_attr_ids({
[0] = {foreground = Screen.colors.Blue, bold = true},
[1] = {background = Screen.colors.Grey90},
})
exec([[
setlocal cursorline scrolloff=0 smoothscroll
call setline(1, repeat([''], 9))
call setline(3, repeat('a', 50))
call setline(8, 'bbb')
call setline(9, 'ccc')
redraw
]])
screen:expect([[
{1:^ }|
|
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|
aaaaaaaaaa |
|
|
|
|
bbb |
|
]])
feed('3<C-E>')
screen:expect([[
{0:<<<}{1:aaaaaa^a }|
|
|
|
|
bbb |
ccc |
{0:~ }|
{0:~ }|
|
]])
end)
it("works with virt_lines above and below", function()
screen:try_resize(55, 7)
exec([=[

22
test/old/testdir/test_scroll_opt.vim
View File

@ -795,4 +795,26 @@ func Test_smoothscroll_incsearch()
call StopVimInTerminal(buf)
endfunc
" Test scrolling multiple lines and stopping at non-zero skipcol.
func Test_smoothscroll_multi_skipcol()
CheckScreendump
let lines =<< trim END
setlocal cursorline scrolloff=0 smoothscroll
call setline(1, repeat([''], 9))
call setline(3, repeat('a', 50))
call setline(8, 'bbb')
call setline(9, 'ccc')
redraw
END
call writefile(lines, 'XSmoothMultiSkipcol', 'D')
let buf = RunVimInTerminal('-S XSmoothMultiSkipcol', #{rows: 10, cols: 40})
call VerifyScreenDump(buf, 'Test_smooth_multi_skipcol_1', {})
call term_sendkeys(buf, "3\<C-E>")
call VerifyScreenDump(buf, 'Test_smooth_multi_skipcol_2', {})
call StopVimInTerminal(buf)
endfunc
" vim: shiftwidth=2 sts=2 expandtab