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108 lines
2.3 KiB
Lua
108 lines
2.3 KiB
Lua
--=============================================================================
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-- rgb.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 red = 0 -- [0, 1]
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local green = 0 -- [0, 1]
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local blue = 0 -- [0, 1]
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M.color_code_regex = [[\s#[0123456789ABCDEF]\+]]
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local function on_change_argv()
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return 'rgb', { red, green, blue }
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end
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function M.buf_text()
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local rst = {}
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local r_bar = util.generate_bar(red, '+')
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local g_bar = util.generate_bar(green, '+')
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local b_bar = util.generate_bar(blue, '+')
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table.insert(
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rst,
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'RGB: R: ' .. string.format('%4s', math.floor(red * 255 + 0.5)) .. ' ' .. r_bar
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)
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table.insert(
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rst,
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' G: ' .. string.format('%4s', math.floor(green * 255 + 0.5)) .. ' ' .. g_bar
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)
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table.insert(
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rst,
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' B: ' .. string.format('%4s', math.floor(blue * 255 + 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 ' =========' .. ' ' .. color.rgb2hex(red, green, blue)
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end
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local function increase(c)
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if c <= 1 - 1 / 255 then
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c = c + 1 / 255
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elseif c < 1 then
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c = 1
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end
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return c
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end
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local function reduce(c)
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if c >= 1 / 255 then
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c = c - 1 / 255
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elseif c > 0 then
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c = 0
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end
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return c
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end
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local function increase_rgb_red()
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red = increase(red)
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return on_change_argv()
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end
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local function reduce_rgb_red()
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red = reduce(red)
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return on_change_argv()
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end
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local function increase_rgb_green()
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green = increase(green)
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return on_change_argv()
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end
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local function reduce_rgb_green()
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green = reduce(green)
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return on_change_argv()
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end
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local function increase_rgb_blue()
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blue = increase(blue)
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return on_change_argv()
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end
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local function reduce_rgb_blue()
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blue = reduce(blue)
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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_rgb_red, reduce_rgb_red },
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{ increase_rgb_green, reduce_rgb_green },
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{ increase_rgb_blue, reduce_rgb_blue },
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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 == 'rgb' then
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red, green, blue = unpack(code)
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return
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end
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red, green, blue = color[f .. '2rgb'](unpack(code))
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end
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return M
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