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https://github.com/SpaceVim/SpaceVim.git
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116 lines
2.7 KiB
Lua
116 lines
2.7 KiB
Lua
--=============================================================================
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-- hwb.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 hue = 0 -- [0, 360]
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local whiteness = 0 -- [0, 100%]
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local blackness = 0 -- [0, 100%]
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M.color_code_regex = [[\shwb(\d\+,\s\d\+%,\s\d\+%)]]
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local function on_change_argv()
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return 'hwb', { hue, whiteness, blackness }
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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(hue, '+', 360)
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local w_bar = util.generate_bar(whiteness, '+')
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local b_bar = util.generate_bar(blackness, '+')
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table.insert(rst, 'HWB: H: ' .. string.format('%4s', math.floor(hue + 0.5)) .. ' ' .. h_bar)
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table.insert(
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rst,
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' W: ' .. string.format('%3s', math.floor(whiteness * 100 + 0.5)) .. '% ' .. w_bar
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)
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table.insert(
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rst,
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' B: ' .. string.format('%3s', math.floor(blackness * 100 + 0.5)) .. '% ' .. b_bar
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)
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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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' hwb(%s, %s%%, %s%%)',
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math.floor(hue + 0.5),
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math.floor(whiteness * 100 + 0.5),
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math.floor(blackness * 100 + 0.5)
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)
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end
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local function increase_hwb_h()
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if hue <= 359 then
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hue = hue + 1
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elseif hue < 360 then
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hue = 360
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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_hwb_h()
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if hue >= 1 then
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hue = hue - 1
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elseif hue > 0 then
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hue = 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_hwb_w()
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if whiteness <= 0.99 then
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whiteness = whiteness + 0.01
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elseif whiteness < 1 then
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whiteness = 1
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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_hwb_w()
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if whiteness >= 0.01 then
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whiteness = whiteness - 0.01
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elseif whiteness > 0 and whiteness < 0.01 then
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whiteness = 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_hwb_b()
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if blackness <= 0.99 then
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blackness = blackness + 0.01
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elseif blackness < 1 then
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blackness = 1
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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_hwb_b()
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if blackness >= 0.01 then
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blackness = blackness - 0.01
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elseif blackness > 0 and blackness < 0.01 then
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blackness = 0
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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_hwb_h, reduce_hwb_h },
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{ increase_hwb_w, reduce_hwb_w },
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{ increase_hwb_b, reduce_hwb_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 == 'hwb' then
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hue, whiteness, blackness = unpack(code)
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return
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end
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hue, whiteness, blackness = color[f .. '2hwb'](unpack(code))
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end
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return M
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