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112 lines
2.8 KiB
Lua
112 lines
2.8 KiB
Lua
--=============================================================================
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-- hsl.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 saturation = 0 -- [0, 100%]
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local lightness = 0 -- [0, 100%]
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local function on_change_argv()
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return 'hsl', { hue, saturation, lightness }
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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 s_bar = util.generate_bar(saturation, '+')
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local l_bar = util.generate_bar(lightness, '+')
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table.insert(rst, 'HSL: 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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' S: ' .. string.format('%3s', math.floor(saturation * 100 + 0.5)) .. '% ' .. s_bar
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)
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table.insert(
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rst,
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' L: ' .. string.format('%3s', math.floor(lightness * 100 + 0.5)) .. '% ' .. l_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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' hsl(%s, %s%%, %s%%)',
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math.floor(hue + 0.5),
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math.floor(saturation * 100 + 0.5),
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math.floor(lightness * 100 + 0.5)
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)
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end
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local function increase_hsl_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_hsl_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_hsl_s()
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if saturation <= 0.99 then
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saturation = saturation + 0.01
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elseif saturation < 1 then
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saturation = 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_hsl_s()
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if saturation >= 0.01 then
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saturation = saturation - 0.01
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elseif saturation > 0 and saturation < 0.01 then
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saturation = 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_hsl_l()
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if lightness <= 0.99 then
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lightness = lightness + 0.01
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elseif lightness < 1 then
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lightness = 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_hsl_l()
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if lightness >= 0.01 then
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lightness = lightness - 0.01
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elseif lightness > 0 and lightness < 0.01 then
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lightness = 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_hsl_h, reduce_hsl_h },
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{ increase_hsl_s, reduce_hsl_s },
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{ increase_hsl_l, reduce_hsl_l },
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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 == 'hsl' then
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return
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end
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hue, saturation, lightness = color[f .. '2hsl'](unpack(code))
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end
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return M
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