Am 27.02.2010 05:39, schrieb Matt Wozniski:
On Fri, Feb 26, 2010 at 5:23 PM, Jean Johner<jean.joh...@cea.fr> wrote:
On Feb 26, 6:58 pm, Ben Fritz<fritzophre...@gmail.com> wrote:
2. Re-map CTRL-F/CTRL-B with an :nnoremap command that issues the
command, then scrolls by 1 line with CTRL-Y/CTRL-E in the correct
direction to get the desired amount of context.
Hi Ben,
CTRL-F CTRL-E does the job but the transition is visible on a slow
connection (VPN).
For CTRL-D, it is more complicated since it depends on the vertical
dimension of the screen.
It is nevertheless surprising that, in a code where everything can be
configured, this two lines overlap between screens seems to be set in
stone.
Perhaps make the map call a function that ensures 'lazyredraw' is set
while scrolling. This seems to do the trick, afaics, and has no
noticeable delay over the slowest connection I can get.
~Matt
function! s:ScrollLeavingOneLineOffset(dir, insert)
let savelz =&lz
set lazyredraw
try
if a:dir> 0&& a:insert
return "\<PageDown>\<C-o>\<C-e>"
elseif a:dir> 0
return "\<PageDown>\<C-e>"
elseif a:insert
return "\<PageUp>\<C-o>\<C-y>"
else
return "\<PageUp>\<C-y>"
endif
finally
let&lz = savelz
endtry
endfunction
noremap<expr> <C-b> <SID>ScrollLeavingOneLineOffset(-1, 0)
noremap<expr> <PageUp> <SID>ScrollLeavingOneLineOffset(-1, 0)
noremap<expr> <C-f> <SID>ScrollLeavingOneLineOffset( 1, 0)
noremap<expr> <PageDown> <SID>ScrollLeavingOneLineOffset( 1, 0)
inoremap<expr> <C-b> <SID>ScrollLeavingOneLineOffset(-1, 1)
inoremap<expr> <PageUp> <SID>ScrollLeavingOneLineOffset(-1, 1)
inoremap<expr> <C-f> <SID>ScrollLeavingOneLineOffset( 1, 1)
inoremap<expr> <PageDown> <SID>ScrollLeavingOneLineOffset( 1, 1)
Can this work?
The actual scroll commands are executed after lazyredraw has been
restored.
--
Andy
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