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109 lines
2.4 KiB
Lua
109 lines
2.4 KiB
Lua
--=============================================================================
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-- lab.lua
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-- Copyright (c) 2019-2024 Wang Shidong & Contributors
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-- Author: Wang Shidong < wsdjeg@outlook.com >
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-- URL: https://spacevim.org
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-- License: GPLv3
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--=============================================================================
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local M = {}
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local color = require('spacevim.api.color')
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local util = require('cpicker.util')
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local l = 0 -- [0, 360]
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local a = 0 -- [0, 100%]
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local b = 0 -- [0, 100%]
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M.color_code_regex = [[\slab(\d\+,\s-\?\d\+%,\s-\?\d\+%)]]
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local function on_change_argv()
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return 'lab', { l, a, b }
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end
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function M.buf_text()
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local rst = {}
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local h_bar = util.generate_bar(l, '+', 100)
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local s_bar = util.generate_bar(a, '+', 250)
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local l_bar = util.generate_bar(b, '+', 250)
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table.insert(rst, 'Lab: L: ' .. string.format('%3s', math.floor(l + 0.5)) .. ' ' .. h_bar)
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table.insert(rst, ' a: ' .. string.format('%3s', math.floor(a + 0.5)) .. '% ' .. s_bar)
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table.insert(rst, ' b: ' .. string.format('%3s', math.floor(b + 0.5)) .. '% ' .. l_bar)
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return rst
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end
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function M.color_code()
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return
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' =========' .. string.format(
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' lab(%s, %s%%, %s%%)',
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math.floor(l + 0.5),
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math.floor(a + 0.5),
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math.floor(b + 0.5)
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)
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end
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local function increase_l()
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if l <= 99 then
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l = l + 1
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elseif l < 100 then
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l = 100
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end
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return on_change_argv()
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end
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local function reduce_l()
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if l >= 1 then
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l = l - 1
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elseif l > 0 then
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l = 0
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end
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return on_change_argv()
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end
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local function increase_a()
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if a <= 99 then
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a = a + 1
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elseif a < 100 then
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a = 100
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end
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return on_change_argv()
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end
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local function reduce_a()
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if a >= -99 then
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a = a - 1
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elseif a > -100 then
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a = -100
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end
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return on_change_argv()
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end
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local function increase_b()
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if b <= 99 then
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b = b + 1
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elseif b < 100 then
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b = 100
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end
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return on_change_argv()
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end
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local function reduce_b()
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if b >= -99 then
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b = b - 1
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elseif b > -100 then
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b = -100
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end
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return on_change_argv()
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end
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function M.increase_reduce_functions()
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return {
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{ increase_l, reduce_l },
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{ increase_a, reduce_a },
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{ increase_b, reduce_b },
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}
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end
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function M.on_change(f, code)
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if f == 'lab' then
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l, a, b = unpack(code)
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return
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end
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l, a, b = color[f .. '2lab'](unpack(code))
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end
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return M
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