farout.nvim/lua/tokyonight/util.lua
Folke Lemaitre 5dbdf8193a completed v1
2021-04-19 14:39:35 +02:00

109 lines
3.2 KiB
Lua

local util = {}
util.colorsUsed = {}
util.bg = "#000000"
util.fg = "#ffffff"
local function hexToRgb(hex_str)
local hex = "[abcdef0-9][abcdef0-9]"
local pat = "^#(" .. hex .. ")(" .. hex .. ")(" .. hex .. ")$"
hex_str = string.lower(hex_str)
assert(string.find(hex_str, pat) ~= nil, "hex_to_rgb: invalid hex_str: " .. tostring(hex_str))
local r, g, b = string.match(hex_str, pat)
return { tonumber(r, 16), tonumber(g, 16), tonumber(b, 16) }
end
local function luma(color, alpha, bg)
bg = bg or util.bg
bg = hexToRgb(bg)
color = hexToRgb(color)
alpha = 1 - ((alpha or 0) / 100)
local blend = function(i)
return math.floor(math.min(math.max(0, (alpha * (color[i]) + ((1 - alpha) * (bg[i])))), 255) +
.5)
end
return string.format("#%02X%02X%02X", blend(1), blend(2), blend(3))
end
function util.darken(hex, amount) return luma(hex, math.abs(amount), util.bg) end
function util.lighten(hex, amount) return luma(hex, math.abs(amount), util.fg) end
function util.highlight(group, color)
if color.fg then util.colorsUsed[color.fg] = true end
if color.bg then util.colorsUsed[color.bg] = true end
if color.sp then util.colorsUsed[color.sp] = true end
local style = color.style and "gui=" .. color.style or "gui=NONE"
local fg = color.fg and "guifg=" .. color.fg or "guifg=NONE"
local bg = color.bg and "guibg=" .. color.bg or "guibg=NONE"
local sp = color.sp and "guisp=" .. color.sp or ""
vim.cmd("highlight " .. group .. " " .. style .. " " .. fg .. " " .. bg .. " " .. sp)
if color.link then vim.cmd("highlight! link " .. group .. " " .. color.link) end
end
function util.debug(colors)
colors = colors or require("tokyonight.colors")
-- Dump unused colors
for name, color in pairs(colors) do
if type(color) == "table" then
util.debug(color)
else
if util.colorsUsed[color] == nil then print("not used: " .. name .. " : " .. color) end
end
end
end
function util.syntax(syntax) for group, colors in pairs(syntax) do util.highlight(group, colors) end end
---@param colors ColorScheme
function util.terminal(colors)
vim.g.terminal_color_0 = colors.bg
vim.g.terminal_color_1 = colors.red
vim.g.terminal_color_2 = colors.green
vim.g.terminal_color_3 = colors.orange
vim.g.terminal_color_4 = colors.blue
vim.g.terminal_color_5 = colors.magenta
vim.g.terminal_color_6 = colors.cyan
vim.g.terminal_color_7 = colors.dark5
vim.g.terminal_color_8 = colors.fg_gutter
vim.g.terminal_color_9 = colors.red
vim.g.terminal_color_10 = colors.green
vim.g.terminal_color_11 = colors.orange
vim.g.terminal_color_12 = colors.blue
vim.g.terminal_color_13 = colors.magenta
vim.g.terminal_color_14 = colors.cyan
vim.g.terminal_color_15 = colors.fg
end
---@param theme Theme
function util.load(theme)
vim.cmd("hi clear")
if vim.fn.exists("syntax_on") then vim.cmd("syntax reset") end
vim.o.background = "dark"
vim.o.termguicolors = true
vim.g.colors_name = "tokyonight"
-- load base theme
util.syntax(theme.base)
-- load syntax for plugins and terminal async
local async
async = vim.loop.new_async(vim.schedule_wrap(function()
-- util.terminal(theme.colors)
util.syntax(theme.plugins)
async:close()
end))
async:send()
end
return util