233 lines
6.9 KiB
Lua
233 lines
6.9 KiB
Lua
local hsluv = require("tokyonight.hsluv")
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local util = {}
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util.colorsUsed = {}
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util.colorCache = {}
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util.bg = "#000000"
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util.fg = "#ffffff"
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local function hexToRgb(hex_str)
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local hex = "[abcdef0-9][abcdef0-9]"
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local pat = "^#(" .. hex .. ")(" .. hex .. ")(" .. hex .. ")$"
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hex_str = string.lower(hex_str)
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assert(string.find(hex_str, pat) ~= nil, "hex_to_rgb: invalid hex_str: " .. tostring(hex_str))
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local r, g, b = string.match(hex_str, pat)
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return { tonumber(r, 16), tonumber(g, 16), tonumber(b, 16) }
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end
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---@param fg string foreground color
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---@param bg string background color
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---@param alpha number number between 0 and 1. 0 results in bg, 1 results in fg
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function util.blend(fg, bg, alpha)
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bg = hexToRgb(bg)
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fg = hexToRgb(fg)
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local blendChannel = function(i)
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local ret = (alpha * (fg[i]) + ((1 - alpha) * (bg[i])))
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return math.floor(math.min(math.max(0, ret), 255) + .5)
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end
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return string.format("#%02X%02X%02X", blendChannel(1), blendChannel(2), blendChannel(3))
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end
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function util.darken(hex, amount, bg) return util.blend(hex, bg or util.bg, math.abs(amount)) end
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function util.lighten(hex, amount, fg) return util.blend(hex, fg or util.fg, math.abs(amount)) end
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function util.brighten(color, percentage)
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local hsl = hsluv.hex_to_hsluv(color)
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local larpSpace = 100 - hsl[3]
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if percentage < 0 then larpSpace = hsl[3] end
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hsl[3] = hsl[3] + larpSpace * percentage
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return hsluv.hsluv_to_hex(hsl)
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end
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function util.invertColor(color)
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if color ~= "NONE" then
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if color ~= "NONE" then
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local hsl = hsluv.hex_to_hsluv(color)
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hsl[3] = 100 - hsl[3]
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if hsl[3] < 40 then hsl[3] = hsl[3] + (100 - hsl[3]) * .3 end
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return hsluv.hsluv_to_hex(hsl)
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end
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end
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return color
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end
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function util.getColor(color)
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if vim.o.background == "dark" then return color end
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if not util.colorCache[color] then util.colorCache[color] = util.invertColor(color) end
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return util.colorCache[color]
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end
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function util.highlight(group, color)
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if color.fg then util.colorsUsed[color.fg] = true end
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if color.bg then util.colorsUsed[color.bg] = true end
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if color.sp then util.colorsUsed[color.sp] = true end
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local style = color.style and "gui=" .. color.style or "gui=NONE"
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local fg = color.fg and "guifg=" .. util.getColor(color.fg) or "guifg=NONE"
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local bg = color.bg and "guibg=" .. util.getColor(color.bg) or "guibg=NONE"
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local sp = color.sp and "guisp=" .. util.getColor(color.sp) or ""
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local hl = "highlight " .. group .. " " .. style .. " " .. fg .. " " .. bg .. " " .. sp
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vim.cmd(hl)
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if color.link then vim.cmd("highlight! link " .. group .. " " .. color.link) end
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end
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function util.debug(colors)
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colors = colors or require("tokyonight.colors")
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-- Dump unused colors
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for name, color in pairs(colors) do
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if type(color) == "table" then
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util.debug(color)
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else
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if util.colorsUsed[color] == nil then print("not used: " .. name .. " : " .. color) end
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end
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end
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end
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--- Delete the autocmds when the theme changes to something else
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function util.onColorScheme()
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if vim.g.colors_name ~= "tokyonight" then
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vim.cmd [[autocmd! TokyoNight]]
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vim.cmd [[augroup! TokyoNight]]
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end
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end
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---@param config Config
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function util.autocmds(config)
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vim.cmd [[augroup TokyoNight]]
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vim.cmd [[ autocmd!]]
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vim.cmd [[ autocmd ColorScheme * lua require("tokyonight.util").onColorScheme()]]
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if config.dev then
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vim.cmd [[ autocmd BufWritePost */lua/tokyonight/** nested colorscheme tokyonight]]
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end
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for _, sidebar in ipairs(config.sidebars) do
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if sidebar == "terminal" then
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vim.cmd [[ autocmd TermOpen * setlocal winhighlight=Normal:NormalSB,SignColumn:SignColumnSB]]
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else
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vim.cmd([[ autocmd FileType ]] .. sidebar ..
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[[ setlocal winhighlight=Normal:NormalSB,SignColumn:SignColumnSB]])
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end
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end
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vim.cmd [[augroup end]]
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end
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-- Simple string interpolation.
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--
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-- Example template: "${name} is ${value}"
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--
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---@param str string template string
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---@param table table key value pairs to replace in the string
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function util.template(str, table)
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return (str:gsub("($%b{})", function(w) return table[w:sub(3, -2)] or w end))
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end
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function util.syntax(syntax) for group, colors in pairs(syntax) do util.highlight(group, colors) end end
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---@param colors ColorScheme
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function util.terminal(colors)
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-- dark
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vim.g.terminal_color_0 = colors.terminal_black
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vim.g.terminal_color_8 = colors.terminal_black
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-- light
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vim.g.terminal_color_7 = colors.fg_dark
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vim.g.terminal_color_15 = colors.fg
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-- colors
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vim.g.terminal_color_1 = colors.red
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vim.g.terminal_color_9 = colors.red
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vim.g.terminal_color_2 = colors.green
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vim.g.terminal_color_10 = colors.green
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vim.g.terminal_color_3 = colors.yellow
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vim.g.terminal_color_11 = colors.yellow
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vim.g.terminal_color_4 = colors.blue
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vim.g.terminal_color_12 = colors.blue
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vim.g.terminal_color_5 = colors.magenta
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vim.g.terminal_color_13 = colors.magenta
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vim.g.terminal_color_6 = colors.cyan
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vim.g.terminal_color_14 = colors.cyan
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if vim.o.background == "light" then
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for i = 0, 15, 1 do
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vim.g["terminal_color_" .. i] = util.getColor(vim.g["terminal_color_" .. i])
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end
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end
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end
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---@param theme Theme
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function util.load(theme)
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vim.cmd("hi clear")
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if vim.fn.exists("syntax_on") then vim.cmd("syntax reset") end
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vim.o.termguicolors = true
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vim.g.colors_name = "tokyonight"
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-- load base theme
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util.syntax(theme.base)
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-- load syntax for plugins and terminal async
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local async
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async = vim.loop.new_async(vim.schedule_wrap(function()
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util.terminal(theme.colors)
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util.syntax(theme.plugins)
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util.autocmds(theme.config)
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async:close()
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end))
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async:send()
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end
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---@param config Config
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---@param colors ColorScheme
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function util.color_overrides(colors, config)
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if type(config.colors) == "table" then
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for key, value in pairs(config.colors) do
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if not colors[key] then error("Color " .. key .. " does not exist") end
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if string.sub(value, 1, 1) == "#" then
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-- hex override
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colors[key] = value
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else
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-- another group
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if not colors[value] then error("Color " .. value .. " does not exist") end
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colors[key] = colors[value]
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end
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end
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end
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end
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function util.light(brightness)
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for hl_name, hl in pairs(vim.api.nvim__get_hl_defs(0)) do
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local def = {}
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for key, def_key in pairs({ foreground = "fg", background = "bg", special = "sp" }) do
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if type(hl[key]) == "number" then
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local hex = string.format("#%06x", hl[key])
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local color = util.invertColor(hex)
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if brightness then color = util.brighten(hex, brightness) end
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table.insert(def, "gui" .. def_key .. "=" .. color)
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end
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end
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if hl_name ~= "" and #def > 0 then
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for _, style in pairs({ "bold", "italic", "underline", "undercurl", "reverse" }) do
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if hl[style] then table.insert(def, "gui=" .. style) end
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end
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vim.cmd("highlight! " .. hl_name .. " " .. table.concat(def, " "))
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end
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end
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end
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return util
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