Commands like 'wincmd K', 'wincmd J', 'wincmd L' and 'wincmd H' can
be used to change the window layout, but sometimes they have strange
effects on the view of the other windows even if the whole windows
layout are not get changed.
To make this problem reproduce-able, I wrote a test script for it. But
first, let me describe the script a little:
The script simply creates 2 windows in Vim. One is called 'Main'(on
top) and the other is called 'Log'(on bottom). First, I append 100 lines
to 'Main', then goto 50th line and make this line displayed on the
bottom of the window by using 'zb'. Next, I switch to the 'Log' window,
move the window to bottom (although it's been already on the bottom) by
'wincmd J' and write a line into it. I noticed the problem: After
'wincmd J', the view of 'Main' window got changed (that is the 50th line
was moved to the top of 'Main'). I suppose it's a bug.
The following script was tested with: VIM - Vi IMproved 7.2-1-148, by
using command:
$ vim -u NONE -S test.vim
fun! BuildLines(prefix)
let a = []
for i in range(1, 100)
call add(a, a:prefix . ": This is line " . i)
endfor
return a
endfun
fun! Test()
set equalalways
set scrolloff=0
" Create a Log window
new Log
set bt=nofile
only!
" Create Main Window, then write some lines into it and
" display the 50th line in the bottom of the window
top new Main
set bt=nofile
let a=BuildLines("Main")
call append(0, a)
normal 50G
normal zb
"normal zz
" let win_save = winsaveview()
" call winrestview(win_save)
" Add some lines to another window (that is, the Log window)
let win_no = bufwinnr("Log")
if win_no != -1
" Found the Log window
exe win_no . "wincmd w"
wincmd J " NOTE: This command will triger the problem
call append('$', "Log: Where is the 50th line? ")
exe "normal G"
endif
endfun
call Test()
redraw!
--
Dasn
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