mirror of
https://github.com/neovim/neovim.git
synced 2025-09-08 04:18:18 +00:00
e598811e76
Avoid clearing the screen in most situations. NOT_VALID should be equivalent to CLEAR unless some external force messed up the terminal, for these situations <c-l> and :mode will still clear the screen. Also eliminate some obsolete code in screen.c, that dealt with that in vim drawing window 1 can mess up window 2, but this never happens in nvim. But what about slow terminals? There is two common meanings in which a terminal is said to be "slow": Most commonly (and in the sense of vim:s nottyfast) it means low bandwidth for sending bytes from nvim to the terminal. If the screen is very similar before and after the update_screen(CLEAR) this change should reduce bandwidth. If the screen is quite different, but there is no new regions of contiguous whitespace, clearing doesn't reduce bandwidth significantly. If the new screen contains a lot of whitespace, it will depend of if vsplits are used or not: as long as there is no vsplits, ce is used to cheaply clear the rest of the line, so full-screen clear is not needed to reduce bandwith. However a left vsplit currently needs to be padded with whitespace all the way to the separator. It is possible ec (clear N chars) can be used to reduce bandwidth here if this is a problem. (All of this assumes that one doesn't set Normal guibg=... on a non-BCE terminal, if you do you are doomed regardless of this change). Slow can also mean that drawing pixels on the screen is slow. E-ink screens is a recent example. Avoiding clearing and redrawing the unchanged part of the screen will always improve performance in these cases.
214 lines
8.9 KiB
Lua
214 lines
8.9 KiB
Lua
local helpers = require('test.functional.helpers')(after_each)
|
|
local Screen = require('test.functional.ui.screen')
|
|
local clear, feed, eq = helpers.clear, helpers.feed, helpers.eq
|
|
local feed_command = helpers.feed_command
|
|
local insert = helpers.insert
|
|
local meths = helpers.meths
|
|
|
|
describe("folded lines", function()
|
|
local screen
|
|
before_each(function()
|
|
clear()
|
|
screen = Screen.new(45, 8)
|
|
screen:attach({rgb=true})
|
|
screen:set_default_attr_ids({
|
|
[1] = {bold = true, foreground = Screen.colors.Blue1},
|
|
[2] = {reverse = true},
|
|
[3] = {bold = true, reverse = true},
|
|
[4] = {foreground = Screen.colors.Grey100, background = Screen.colors.Red},
|
|
[5] = {foreground = Screen.colors.DarkBlue, background = Screen.colors.LightGrey},
|
|
[6] = {background = Screen.colors.Yellow},
|
|
[7] = {foreground = Screen.colors.DarkBlue, background = Screen.colors.WebGray},
|
|
})
|
|
end)
|
|
|
|
after_each(function()
|
|
screen:detach()
|
|
end)
|
|
|
|
it("works with multibyte text", function()
|
|
-- Currently the only allowed value of 'maxcombine'
|
|
eq(6, meths.get_option('maxcombine'))
|
|
eq(true, meths.get_option('arabicshape'))
|
|
insert([[
|
|
å 语 x̨̣̘̫̲͚͎̎͂̀̂͛͛̾͢͟ العَرَبِيَّة
|
|
möre text]])
|
|
screen:expect([[
|
|
å 语 x̎͂̀̂͛͛ ﺎﻠﻋَﺮَﺒِﻳَّﺓ |
|
|
möre tex^t |
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
|
|
|
]])
|
|
|
|
feed('vkzf')
|
|
screen:expect([[
|
|
{5:^+-- 2 lines: å 语 x̎͂̀̂͛͛ ﺎﻠﻋَﺮَﺒِﻳَّﺓ·················}|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
|
|
|
]])
|
|
|
|
feed_command("set noarabicshape")
|
|
screen:expect([[
|
|
{5:^+-- 2 lines: å 语 x̎͂̀̂͛͛ العَرَبِيَّة·················}|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
:set noarabicshape |
|
|
]])
|
|
|
|
feed_command("set number foldcolumn=2")
|
|
screen:expect([[
|
|
{7:+ }{5: 1 ^+-- 2 lines: å 语 x̎͂̀̂͛͛ العَرَبِيَّة···········}|
|
|
{7: }{1:~ }|
|
|
{7: }{1:~ }|
|
|
{7: }{1:~ }|
|
|
{7: }{1:~ }|
|
|
{7: }{1:~ }|
|
|
{7: }{1:~ }|
|
|
:set number foldcolumn=2 |
|
|
]])
|
|
|
|
-- Note: too much of the folded line gets cut off.This is a vim bug.
|
|
feed_command("set rightleft")
|
|
screen:expect([[
|
|
{5:+-- 2 lines: å ······················^· 1 }{7: +}|
|
|
{1: ~}{7: }|
|
|
{1: ~}{7: }|
|
|
{1: ~}{7: }|
|
|
{1: ~}{7: }|
|
|
{1: ~}{7: }|
|
|
{1: ~}{7: }|
|
|
:set rightleft |
|
|
]])
|
|
|
|
feed_command("set nonumber foldcolumn=0")
|
|
screen:expect([[
|
|
{5:+-- 2 lines: å 语 x̎͂̀̂͛͛ ال·····················^·}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
:set nonumber foldcolumn=0 |
|
|
]])
|
|
|
|
feed_command("set arabicshape")
|
|
screen:expect([[
|
|
{5:+-- 2 lines: å 语 x̎͂̀̂͛͛ ﺍﻟ·····················^·}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
:set arabicshape |
|
|
]])
|
|
|
|
feed('zo')
|
|
screen:expect([[
|
|
ﺔﻴَّﺑِﺮَﻌَ^ﻟﺍ x̎͂̀̂͛͛ 语 å|
|
|
txet eröm|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
:set arabicshape |
|
|
]])
|
|
|
|
feed_command('set noarabicshape')
|
|
screen:expect([[
|
|
ةيَّبِرَعَ^لا x̎͂̀̂͛͛ 语 å|
|
|
txet eröm|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
{1: ~}|
|
|
:set noarabicshape |
|
|
]])
|
|
|
|
end)
|
|
|
|
it("work in cmdline window", function()
|
|
feed_command("set foldmethod=manual")
|
|
feed_command("let x = 1")
|
|
feed_command("/alpha")
|
|
feed_command("/omega")
|
|
|
|
feed("<cr>q:")
|
|
screen:expect([[
|
|
|
|
|
{2:[No Name] }|
|
|
{1::}set foldmethod=manual |
|
|
{1::}let x = 1 |
|
|
{1::}^ |
|
|
{1::~ }|
|
|
{3:[Command Line] }|
|
|
: |
|
|
]])
|
|
|
|
feed("kzfk")
|
|
screen:expect([[
|
|
|
|
|
{2:[No Name] }|
|
|
{1::}{5:^+-- 2 lines: set foldmethod=manual·········}|
|
|
{1::} |
|
|
{1::~ }|
|
|
{1::~ }|
|
|
{3:[Command Line] }|
|
|
: |
|
|
]])
|
|
|
|
feed("<cr>")
|
|
screen:expect([[
|
|
^ |
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
{1:~ }|
|
|
: |
|
|
]])
|
|
|
|
feed("/<c-f>")
|
|
screen:expect([[
|
|
|
|
|
{2:[No Name] }|
|
|
{1:/}alpha |
|
|
{1:/}{6:omega} |
|
|
{1:/}^ |
|
|
{1:/~ }|
|
|
{3:[Command Line] }|
|
|
/ |
|
|
]])
|
|
|
|
feed("ggzfG")
|
|
screen:expect([[
|
|
|
|
|
{2:[No Name] }|
|
|
{1:/}{5:^+-- 3 lines: alpha·························}|
|
|
{1:/~ }|
|
|
{1:/~ }|
|
|
{1:/~ }|
|
|
{3:[Command Line] }|
|
|
/ |
|
|
]])
|
|
|
|
end)
|
|
end)
|