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vim-patch:9.0.1121: cursor positioning and display problems with 'smoothscroll'

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Problem:    Cursor positioning and display problems with 'smoothscroll' and
            using "zt", "zb" or "zz".
Solution:   Adjust computations and conditions. (Yee Cheng Chin,
            closes vim/vim#11764)

db4d88c2ad

Co-authored-by: Bram Moolenaar <Bram@vim.org>
This commit is contained in:
Luuk van Baal
2023-04-28 13:34:07 +02:00
parent 6fd7e3bea4
commit 9b9ccac625
3 changed files with 169 additions and 44 deletions
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12
test/old/testdir/test_scroll_opt.vim
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@@ -313,6 +313,14 @@ func Test_smoothscroll_wrap_long_line()
call term_sendkeys(buf, "0j")
call VerifyScreenDump(buf, 'Test_smooth_long_10', {})
" Test zt/zz/zb that they work properly when a long line is above it
call term_sendkeys(buf, "zb")
call VerifyScreenDump(buf, 'Test_smooth_long_11', {})
call term_sendkeys(buf, "zz")
call VerifyScreenDump(buf, 'Test_smooth_long_12', {})
call term_sendkeys(buf, "zt")
call VerifyScreenDump(buf, 'Test_smooth_long_13', {})
" Repeat the step and move the cursor down again.
" This time, use a shorter long line that is barely long enough to span more
" than one window. Note that the cursor is at the bottom this time because
@@ -320,7 +328,7 @@ func Test_smoothscroll_wrap_long_line()
call term_sendkeys(buf, ":call setline(1, ['one', 'two', 'Line' .. (' with lots of text'->repeat(10)) .. ' end', 'four'])\<CR>")
call term_sendkeys(buf, "3Gzt")
call term_sendkeys(buf, "j")
call VerifyScreenDump(buf, 'Test_smooth_long_11', {})
call VerifyScreenDump(buf, 'Test_smooth_long_14', {})
" Repeat the step but this time start it when the line is smooth-scrolled by
" one line. This tests that the offset calculation is still correct and
@@ -328,7 +336,7 @@ func Test_smoothscroll_wrap_long_line()
" screen.
call term_sendkeys(buf, "3Gzt")
call term_sendkeys(buf, "\<C-E>j")
call VerifyScreenDump(buf, 'Test_smooth_long_12', {})
call VerifyScreenDump(buf, 'Test_smooth_long_15', {})
call StopVimInTerminal(buf)
endfunc