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-- MIT License Copyright (c) 2021 Evgeni Chasnovski
---@brief [[
--- Custom minimal and fast Lua module which implements
--- [base16](http://chriskempson.com/projects/base16/) color scheme (with
--- Copyright (C) 2012 Chris Kempson) adapated for modern Neovim 0.5 Lua
--- plugins. Extra features:
--- - Configurable automatic support of cterm colors (see |highlight-cterm|).
--- - Opinionated palette generator based only on background and foreground
--- colors.
---
--- # Setup
---
--- This module needs a setup with `require('mini.base16').setup({})` (replace
--- `{}` with your `config` table). It will create global Lua table
--- `MiniBase16` which you can use for scripting or manually (with
--- `:lua MiniBase16.*`).
---
--- Default `config`:
--- <code>
--- {
--- -- Table with names from `base00` to `base0F` and values being strings of HEX
--- -- colors with format "#RRGGBB". NOTE: this should be explicitly supplied in
--- -- `setup()`.
--- palette = nil,
---
--- -- Whether to support cterm colors. Can be boolean, `nil` (same as `false`),
--- -- or table with cterm colors. See `setup()` documentation for more
--- -- information.
--- use_cterm = nil,
--- }
--- </code>
--- Example:
--- <code>
--- require('mini.base16').setup({
--- palette = {
--- base00 = '#112641',
--- base01 = '#3a475e',
--- base02 = '#606b81',
--- base03 = '#8691a7',
--- base04 = '#d5dc81',
--- base05 = '#e2e98f',
--- base06 = '#eff69c',
--- base07 = '#fcffaa',
--- base08 = '#ffcfa0',
--- base09 = '#cc7e46',
--- base0A = '#46a436',
--- base0B = '#9ff895',
--- base0C = '#ca6ecf',
--- base0D = '#42f7ff',
--- base0E = '#ffc4ff',
--- base0F = '#00a5c5',
--- },
--- use_cterm = true,
--- })
--- </code>
--- # Notes
--- 1. This module is used for creating plugin's official colorscheme named
--- `minischeme` (see |mini.nvim|).
--- 2. Using `setup()` doesn't actually create a |colorscheme|. It basically
--- creates a coordinated set of |highlight|s. To create your own theme:
--- - Put "myscheme.lua" file (name after your chosen theme name) inside
--- any "colors" directory reachable from 'runtimepath' ("colors" inside
--- your Neovim config directory is usually enough).
--- - Inside "myscheme.lua" call `require('mini.base16').setup()` with your
--- palette and only after that set |g:colors_name| to "myscheme".
---
---@brief ]]
---@tag MiniBase16 mini.base16
-- Module and its helper
local MiniBase16 = {}
local H = {}
--- Module setup
---
--- Setup is done by applying base16 palette to enable colorscheme. Highlight
--- groups make an extended set from original
--- [base16-vim](https://github.com/chriskempson/base16-vim/) plugin. It is a
--- good idea to have `config.palette` respect the original [styling
--- principles](https://github.com/chriskempson/base16/blob/master/styling.md).
---
--- By default only 'gui highlighting' (see |highlight-gui| and
--- |termguicolors|) is supported. To support 'cterm highlighting' (see
--- |highlight-cterm|) supply `config.use_cterm` argument in one of the formats:
--- - `true` to auto-generate from `palette` (as closest colors).
--- - Table with similar structure to `palette` but having terminal colors
--- (integers from 0 to 255) instead of hex strings.
---
---@param config table: Module config table.
---@usage `require('mini.base16').setup({})` (replace `{}` with your `config` table; `config.palette` should be a table with colors)
function MiniBase16.setup(config)
-- Export module
_G.MiniBase16 = MiniBase16
-- Setup config
config = H.setup_config(config)
-- Apply config
H.apply_config(config)
end
MiniBase16.config = {
-- Table with names from `base00` to `base0F` and values being strings of HEX
-- colors with format "#RRGGBB". NOTE: this should be explicitly supplied in
-- `setup()`.
palette = nil,
-- Whether to support cterm colors. Can be boolean, `nil` (same as `false`),
-- or table with cterm colors. See `setup()` documentation for more
-- information.
use_cterm = nil,
}
--- Create 'mini' palette
---
--- Create base16 palette based on the HEX (string '#RRGGBB') colors of main background and
--- foreground with optional setting of accent chroma (see details).
---
--- # Algorithm design
--- - Main operating color space is
--- [CIELCh(uv)](https://en.wikipedia.org/wiki/CIELUV#Cylindrical_representation_(CIELCh))
--- which is a cylindrical representation of a perceptually uniform CIELUV
--- color space. It defines color by three values: lightness L (values from 0
--- to 100), chroma (positive values), and hue (circular values from 0 to 360
--- degress). Useful converting tool: https://www.easyrgb.com/en/convert.php
--- - There are four important lightness values: background, foreground, focus
--- (around the middle of background and foreground, leaning towards
--- foreground), and edge (extreme lightness closest to foreground).
--- - First four colors have the same chroma and hue as `background` but
--- lightness progresses from background towards focus.
--- - Second four colors have the same chroma and hue as `foreground` but
--- lightness progresses from foreground towards edge in such a way that
--- 'base05' color is main foreground color.
--- - The rest eight colors are accent colors which are created in pairs
--- - Each pair has same hue from set of hues 'most different' to
--- background and foreground hues (if respective chorma is positive).
--- - All colors have the same chroma equal to `accent_chroma` (if not
--- provided, chroma of foreground is used, as they will appear next
--- to each other). Note: this means that in case of low foreground
--- chroma, it is a good idea to set `accent_chroma` manually.
--- Values from 30 (low chorma) to 80 (high chroma) are common.
--- - Within pair there is base lightness (equal to foreground
--- lightness) and alternative (equal to focus lightness). Base
--- lightness goes to colors which will be used more frequently in
--- code: base08 (variables), base0B (strings), base0D (functions),
--- base0E (keywords).
--- How exactly accent colors are mapped to base16 palette is a result of
--- trial and error. One rule of thumb was: colors within one hue pair should
--- be more often seen next to each other. This is because it is easier to
--- distinguish them and seems to be more visually appealing. That is why
--- `base0D` and `base0F` have same hues because they usually represent
--- functions and delimiter (brackets included).
---
---@param background string: Background HEX color (formatted as `#RRGGBB`).
---@param foreground string: Foreground HEX color (formatted as `#RRGGBB`).
---@param accent_chroma number: Optional positive number (usually between 0 and 100). Default: chroma of foreground color.
---@return table: Table with base16 palette.
---@usage `local palette = require('mini.base16').mini_palette('#112641', '#e2e98f', 75)`
---@usage `require('mini.base16').setup({palette = palette})`
function MiniBase16.mini_palette(background, foreground, accent_chroma)
H.validate_hex(background, 'background')
H.validate_hex(foreground, 'foreground')
if accent_chroma and not (type(accent_chroma) == 'number' and accent_chroma >= 0) then
error('(mini.base16) `accent_chroma` should be a positive number or `nil`.')
end
local bg, fg = H.hex2lch(background), H.hex2lch(foreground)
accent_chroma = accent_chroma or fg.c
local palette = {}
-- Target lightness values
-- Justification for skewness towards foreground in focus is mainly because
-- it will be paired with foreground lightness and used for text.
local focus_l = 0.4 * bg.l + 0.6 * fg.l
local edge_l = fg.l > 50 and 99 or 1
-- Background colors
local bg_step = (focus_l - bg.l) / 3
palette[1] = { l = bg.l + 0 * bg_step, c = bg.c, h = bg.h }
palette[2] = { l = bg.l + 1 * bg_step, c = bg.c, h = bg.h }
palette[3] = { l = bg.l + 2 * bg_step, c = bg.c, h = bg.h }
palette[4] = { l = bg.l + 3 * bg_step, c = bg.c, h = bg.h }
-- Foreground colors Possible negative value of `palette[5].l` will be
-- handled in future conversion to hex.
local fg_step = (edge_l - fg.l) / 2
palette[5] = { l = fg.l - 1 * fg_step, c = fg.c, h = fg.h }
palette[6] = { l = fg.l + 0 * fg_step, c = fg.c, h = fg.h }
palette[7] = { l = fg.l + 1 * fg_step, c = fg.c, h = fg.h }
palette[8] = { l = fg.l + 2 * fg_step, c = fg.c, h = fg.h }
-- Accent colors
---- Only try to avoid color if it has positive chroma, because with zero
---- chroma hue is meaningless (as in polar coordinates)
local present_hues = {}
if bg.c > 0 then
table.insert(present_hues, bg.h)
end
if fg.c > 0 then
table.insert(present_hues, fg.h)
end
local hues = H.make_different_hues(present_hues, 4)
-- stylua: ignore start
palette[9] = { l = fg.l, c = accent_chroma, h = hues[1] }
palette[10] = { l = focus_l, c = accent_chroma, h = hues[1] }
palette[11] = { l = focus_l, c = accent_chroma, h = hues[2] }
palette[12] = { l = fg.l, c = accent_chroma, h = hues[2] }
palette[13] = { l = focus_l, c = accent_chroma, h = hues[4] }
palette[14] = { l = fg.l, c = accent_chroma, h = hues[3] }
palette[15] = { l = fg.l, c = accent_chroma, h = hues[4] }
palette[16] = { l = focus_l, c = accent_chroma, h = hues[3] }
-- stylua: ignore end
-- Convert to base16 palette
local base16_palette = {}
for i, lch in ipairs(palette) do
local name = H.base16_names[i]
-- It is ensured in `lch2hex` that only valid HEX values are produced
base16_palette[name] = H.lch2hex(lch)
end
return base16_palette
end
--- Converts palette with RGB colors to terminal colors
---
--- Useful for caching `use_cterm` variable to increase speed.
---
---@param palette table: Table with base16 palette (same as in `MiniBase16.config.palette`).
---@return table: Table with base16 palette using |highlight-cterm|.
function MiniBase16.rgb_palette_to_cterm_palette(palette)
H.validate_base16_palette(palette, 'palette')
-- Create cterm palette only when it is needed to decrease load time
H.ensure_cterm_palette()
return vim.tbl_map(function(hex)
return H.nearest_rgb_id(H.hex2rgb(hex), H.cterm_palette)
end, palette)
end
-- Helpers
---- Module default config
H.default_config = MiniBase16.config
---- Settings
function H.setup_config(config)
-- General idea: if some table elements are not present in user-supplied
-- `config`, take them from default config
vim.validate({ config = { config, 'table', true } })
config = vim.tbl_deep_extend('force', H.default_config, config or {})
-- Validate settings
H.validate_base16_palette(config.palette, 'config.palette')
H.validate_use_cterm(config.use_cterm, 'config.use_cterm')
return config
end
function H.apply_config(config)
MiniBase16.config = config
H.apply_palette(config.palette, config.use_cterm)
end
---- Validators
H.base16_names = {
'base00',
'base01',
'base02',
'base03',
'base04',
'base05',
'base06',
'base07',
'base08',
'base09',
'base0A',
'base0B',
'base0C',
'base0D',
'base0E',
'base0F',
}
function H.validate_base16_palette(x, x_name)
if type(x) ~= 'table' then
error(string.format('(mini.base16) `%s` is not a table.', x_name))
end
for _, color_name in pairs(H.base16_names) do
local c = x[color_name]
if c == nil then
local msg = string.format('(mini.base16) `%s` does not have value %s.', x_name, color_name)
error(msg)
end
H.validate_hex(c, string.format('config.palette[%s]', color_name))
end
return true
end
function H.validate_use_cterm(x, x_name)
if not x or type(x) == 'boolean' then
return true
end
if type(x) ~= 'table' then
local msg = string.format('(mini.base16) `%s` should be boolean or table with cterm colors.', x_name)
error(msg)
end
for _, color_name in pairs(H.base16_names) do
local c = x[color_name]
if c == nil then
local msg = string.format('(mini.base16) `%s` does not have value %s.', x_name, color_name)
error(msg)
end
if not (type(c) == 'number' and 0 <= c and c <= 255) then
local msg = string.format('(mini.base16) `%s.%s` is not a cterm color.', x_name, color_name)
error(msg)
end
end
return true
end
function H.validate_hex(x, x_name)
local is_hex = type(x) == 'string' and x:len() == 7 and x:sub(1, 1) == '#' and (tonumber(x:sub(2), 16) ~= nil)
if not is_hex then
local msg = string.format('(mini.base16) `%s` is not a HEX color (string "#RRGGBB").', x_name)
error(msg)
end
return true
end
---- Highlighting
function H.apply_palette(palette, use_cterm)
-- Prepare highlighting application. Notes:
-- - Clear current highlight only if other theme was loaded previously.
-- - No need to `syntax reset` because *all* syntax groups are defined later.
if vim.g.colors_name then
vim.cmd([[highlight clear]])
end
-- As this doesn't create colorscheme, don't store any name. Not doing it
-- might cause some issues with `syntax on`.
vim.g.colors_name = nil
local p, hi
if use_cterm then
p, hi = H.make_compound_palette(palette, use_cterm), H.highlight_both
else
p, hi = palette, H.highlight_gui
end
8BD0
-- stylua: ignore start
-- Builtin highlighting groups. Some groups which are missing in 'base16-vim'
-- are added based on groups to which they are linked.
hi('ColorColumn', {fg=nil, bg=p.base01, attr=nil, sp=nil})
hi('Conceal', {fg=p.base0D, bg=p.base00, attr=nil, sp=nil})
hi('Cursor', {fg=p.base00, bg=p.base05, attr=nil, sp=nil})
hi('CursorColumn', {fg=nil, bg=p.base01, attr=nil, sp=nil})
hi('CursorIM', {fg=p.base00, bg=p.base05, attr=nil, sp=nil})
hi('CursorLine', {fg=nil, bg=p.base01, attr=nil, sp=nil})
hi('CursorLineNr', {fg=p.base04, bg=p.base01, attr=nil, sp=nil})
hi('DiffAdd', {fg=p.base0B, bg=p.base01, attr=nil, sp=nil})
hi('DiffChange', {fg=p.base03, bg=p.base01, attr=nil, sp=nil})
hi('DiffDelete', {fg=p.base08, bg=p.base01, attr=nil, sp=nil})
hi('DiffText', {fg=p.base0D, bg=p.base01, attr=nil, sp=nil})
hi('Directory', {fg=p.base0D, bg=nil, attr=nil, sp=nil})
hi('EndOfBuffer', {fg=p.base03, bg=nil, attr=nil, sp=nil})
hi('ErrorMsg', {fg=p.base08, bg=p.base00, attr=nil, sp=nil})
hi('FoldColumn', {fg=p.base0C, bg=p.base01, attr=nil, sp=nil})
hi('Folded', {fg=p.base03, bg=p.base01, attr=nil, sp=nil})
hi('IncSearch', {fg=p.base01, bg=p.base09, attr=nil, sp=nil})
hi('LineNr', {fg=p.base03, bg=p.base01, attr=nil, sp=nil})
---- Slight difference from base16, where `bg=base03` is used. This makes
---- it possible to comfortably see this highlighting in comments.
hi('MatchParen', {fg=nil, bg=p.base02, attr=nil, sp=nil})
hi('ModeMsg', {fg=p.base0B, bg=nil, attr=nil, sp=nil})
hi('MoreMsg', {fg=p.base0B, bg=nil, attr=nil, sp=nil})
hi('MsgArea', {fg=p.base05, bg=p.base00, attr=nil, sp=nil})
hi('MsgSeparator', {fg=p.base04, bg=p.base02, attr=nil, sp=nil})
hi('NonText', {fg=p.base03, bg=nil, attr=nil, sp=nil})
hi('Normal', {fg=p.base05, bg=p.base00, attr=nil, sp=nil})
hi('NormalFloat', {fg=p.base05, bg=p.base01, attr=nil, sp=nil})
hi('NormalNC', {fg=p.base05, bg=p.base00, attr=nil, sp=nil})
hi('PMenu', {fg=p.base05, bg=p.base01, attr=nil, sp=nil})
hi('PMenuSbar', {fg=nil, bg=p.base02, attr=nil, sp=nil})
hi('PMenuSel', {fg=p.base01, bg=p.base05, attr=nil, sp=nil})
hi('PMenuThumb', {fg=nil, bg=p.base07, attr=nil, sp=nil})
hi('Question', {fg=p.base0D, bg=nil, attr=nil, sp=nil})
hi('QuickFixLine', {fg=nil, bg=p.base01, attr=nil, sp=nil})
hi('Search', {fg=p.base01, bg=p.base0A, attr=nil, sp=nil})
hi('SignColumn', {fg=p.base03, bg=p.base01, attr=nil, sp=nil})
hi('SpecialKey', {fg=p.base03, bg=nil, attr=nil, sp=nil})
hi('SpellBad', {fg=nil, bg=nil, attr='undercurl', sp=p.base08})
hi('SpellCap', {fg=nil, bg=nil, attr='undercurl', sp=p.base0D})
hi('SpellLocal', {fg=nil, bg=nil, attr='undercurl', sp=p.base0C})
hi('SpellRare', {fg=nil, bg=nil, attr='undercurl', sp=p.base0E})
hi('StatusLine', {fg=p.base04, bg=p.base02, attr=nil, sp=nil})
hi('StatusLineNC', {fg=p.base03, bg=p.base01, attr=nil, sp=nil})
hi('Substitute', {fg=p.base01, bg=p.base0A, attr=nil, sp=nil})
hi('TabLine', {fg=p.base03, bg=p.base01, attr=nil, sp=nil})
hi('TabLineFill', {fg=p.base03, bg=p.base01, attr=nil, sp=nil})
hi('TabLineSel', {fg=p.base0B, bg=p.base01, attr=nil, sp=nil})
hi('TermCursor', {fg=nil, bg=nil, attr='reverse', sp=nil})
hi('TermCursorNC', {fg=nil, bg=nil, attr='reverse', sp=nil})
hi('Title', {fg=p.base0D, bg=nil, attr=nil, sp=nil})
hi('VertSplit', {fg=p.base02, bg=p.base02, attr=nil, sp=nil})
hi('Visual', {fg=nil, bg=p.base02, attr=nil, sp=nil})
hi('VisualNOS', {fg=p.base08, bg=nil, attr=nil, sp=nil})
hi('WarningMsg', {fg=p.base08, bg=nil, attr=nil, sp=nil})
hi('Whitespace', {fg=p.base03, bg=nil, attr=nil, sp=nil})
hi('WildMenu', {fg=p.base08, bg=p.base0A, attr=nil, sp=nil})
hi('lCursor', {fg=p.base00, bg=p.base05, attr=nil, sp=nil})
-- Standard syntax (affects treesitter)
hi('Boolean', {fg=p.base09, bg=nil, attr=nil, sp=nil})
hi('Character', {fg=p.base08, bg=nil, attr=nil, sp=nil})
hi('Comment', {fg=p.base03, bg=nil, attr=nil, sp=nil})
hi('Conditional', {fg=p.base0E, bg=nil, attr=nil, sp=nil})
hi('Constant', {fg=p.base09, bg=nil, attr=nil, sp=nil})
hi('Debug', {fg=p.base08, bg=nil, attr=nil, sp=nil})
hi('Define', {fg=p.base0E, bg=nil, attr=nil, sp=nil})
hi('Delimiter', {fg=p.base0F, bg=nil, attr=nil, sp=nil})
hi('Error', {fg=p.base00, bg=p.base08, attr=nil, sp=nil})
hi('Exception', {fg=p.base08, bg=nil, attr=nil, sp=nil})
hi('Float', {fg=p.base09, bg=nil, attr=nil, sp=nil})
hi('Function', {fg=p.base0D, bg=nil, attr=nil, sp=nil})
hi('Identifier', {fg=p.base08, bg=nil, attr=nil, sp=nil})
hi('Ignore', {fg=p.base0C, bg=nil, attr=nil, sp=nil})
hi('Include', {fg=p.base0D, bg=nil, attr=nil, sp=nil})
hi('Keyword', {fg=p.base0E, bg=nil, attr=nil, sp=nil})
hi('Label', {fg=p.base0A, bg=nil, attr=nil, sp=nil})
hi('Macro', {fg=p.base08, bg=nil, attr=nil, sp=nil})
hi('Number', {fg=p.base09, bg=nil, attr=nil, sp=nil})
hi('Operator', {fg=p.base05, bg=nil, attr=nil, sp=nil})
hi('PreCondit', {fg=p.base0A, bg=nil, attr=nil, sp=nil})
hi('PreProc', {fg=p.base0A, bg=nil, attr=nil, sp=nil})
hi('Repeat', {fg=p.base0A, bg=nil, attr=nil, sp=nil})
hi('Special', {fg=p.base0C, bg=nil, attr=nil, sp=nil})
hi('SpecialChar', {fg=p.base0F, bg=nil, attr=nil, sp=nil})
hi('SpecialComment', {fg=p.base0C, bg=nil, attr=nil, sp=nil})
hi('Statement', {fg=p.base08, bg=nil, attr=nil, sp=nil})
hi('StorageClass', {fg=p.base0A, bg=nil, attr=nil, sp=nil})
hi('String', {fg=p.base0B, bg=nil, attr=nil, sp=nil})
hi('Structure', {fg=p.base0E, bg=nil, attr=nil, sp=nil})
hi('Tag', {fg=p.base0A, bg=nil, attr=nil, sp=nil})
hi('Todo', {fg=p.base0A, bg=p.base01, attr=nil, sp=nil})
hi('Type', {fg=p.base0A, bg=nil, attr=nil, sp=nil})
hi('Typedef', {fg=p.base0A, bg=nil, attr=nil, sp=nil})
hi('Underlined', {fg=p.base08, bg=nil, attr=nil, sp=nil})
-- Other from 'base16-vim'
hi('Bold', {fg=nil, bg=nil, attr='bold', sp=nil})
hi('Italic', {fg=nil, bg=nil, attr=nil, sp=nil})
hi('TooLong', {fg=p.base08, bg=nil, attr=nil, sp=nil})
hi('Underlined', {fg=p.base08, bg=nil, attr=nil, sp=nil})
-- Git diff
hi('DiffAdded', {fg=p.base0B, bg=p.base00, attr=nil, sp=nil})
hi('DiffFile', {fg=p.base08, bg=p.base00, attr=nil, sp=nil})
hi('DiffLine', {fg=p.base0D, bg=p.base00, attr=nil, sp=nil})
hi('DiffNewFile', {fg=p.base0B, bg=p.base00, attr=nil, sp=nil})
hi('DiffRemoved', {fg=p.base08, bg=p.base00, attr=nil, sp=nil})
-- Git commit
hi('gitcommitBranch', {fg=p.base09, bg=nil, attr='bold', sp=nil})
hi('gitcommitComment', {fg=p.base03, bg=nil, attr=nil, sp=nil})
hi('gitcommitDiscarded', {fg=p.base03, bg=nil, attr=nil, sp=nil})
hi('gitcommitDiscardedFile', {fg=p.base08, bg=nil, attr='bold', sp=nil})
hi('gitcommitDiscardedType', {fg=p.base0D, bg=nil, attr=nil, sp=nil})
hi('gitcommitHeader', {fg=p.base0E, bg=nil, attr=nil, sp=nil})
hi('gitcommitOverflow', {fg=p.base08, bg=nil, attr=nil, sp=nil})
hi('gitcommitSelected', {fg=p.base03, bg=nil, attr=nil, sp=nil})
hi('gitcommitSelectedFile', {fg=p.base0B, bg=nil, attr='bold', sp=nil})
hi('gitcommitSelectedType', {fg=p.base0D, bg=nil, attr=nil, sp=nil})
hi('gitcommitSummary', {fg=p.base0B, bg=nil, attr=nil, sp=nil})
hi('gitcommitUnmergedFile', {fg=p.base08, bg=nil, attr='bold', sp=nil})
hi('gitcommitUnmergedType', {fg=p.base0D, bg=nil, attr=nil, sp=nil})
hi('gitcommitUntracked', {fg=p.base03, bg=nil, attr=nil, sp=nil})
hi('gitcommitUntrackedFile', {fg=p.base0A, bg=nil, attr=nil, sp=nil})
-- Built-in diagnostic
if vim.fn.has("nvim-0.6.0") == 1 then
hi('DiagnosticError', {fg=p.base08, bg=p.base00, attr=nil, sp=nil})
hi('DiagnosticHint', {fg=p.base0D, bg=p.base00, attr=nil, sp=nil})
hi('DiagnosticInfo', {fg=p.base0C, bg=p.base00, attr=nil, sp=nil})
hi('DiagnosticWarn', {fg=p.base0E, bg=p.base00, attr=nil, sp=nil})
hi('DiagnosticFloatingError', {fg=p.base08, bg=p.base01, attr=nil, sp=nil})
hi('DiagnosticFloatingHint', {fg=p.base0D, bg=p.base01, attr=nil, sp=nil})
hi('DiagnosticFloatingInfo', {fg=p.base0C, bg=p.base01, attr=nil, sp=nil})
hi('DiagnosticFloatingWarn', {fg=p.base0E, bg=p.base01, attr=nil, sp=nil})
hi('DiagnosticSignError', {fg=p.base08, bg=p.base01, attr=nil, sp=nil})
hi('DiagnosticSignHint', {fg=p.base0D, bg=p.base01, attr=nil, sp=nil})
hi('DiagnosticSignInfo', {fg=p.base0C, bg=p.base01, attr=nil, sp=nil})
hi('DiagnosticSignWarn', {fg=p.base0E, bg=p.base01, attr=nil, sp=nil})
hi('DiagnosticUnderlineError', {fg=nil, bg=nil, attr='underline', sp=p.base08})
hi('DiagnosticUnderlineHint', {fg=nil, bg=nil, attr='underline', sp=p.base0D})
hi('DiagnosticUnderlineInfo', {fg=nil, bg=nil, attr='underline', sp=p.base0C})
hi('DiagnosticUnderlineWarn', {fg=nil, bg=nil, attr='underline', sp=p.base0E})
else
hi('LspDiagnosticsDefaultError', {fg=p.base08, bg=p.base00, attr=nil, sp=nil})
hi('LspDiagnosticsDefaultHint', {fg=p.base0D, bg=p.base00, attr=nil, sp=nil})
hi('LspDiagnosticsDefaultInformation', {fg=p.base0C, bg=p.base00, attr=nil, sp=nil})
hi('LspDiagnosticsDefaultWarning', {fg=p.base0E, bg=p.base00, attr=nil, sp=nil})
hi('LspDiagnosticsFloatingError', {fg=p.base08, bg=p.base01, attr=nil, sp=nil})
hi('LspDiagnosticsFloatingHint', {fg=p.base0D, bg=p.base01, attr=nil, sp=nil})
hi('LspDiagnosticsFloatingInformation', {fg=p.base0C, bg=p.base01, attr=nil, sp=nil})
hi('LspDiagnosticsFloatingWarning', {fg=p.base0E, bg=p.base01, attr=nil, sp=nil})
hi('LspDiagnosticsSignError', {fg=p.base08, bg=p.base01, attr=nil, sp=nil})
hi('LspDiagnosticsSignHint', {fg=p.base0D, bg=p.base01, attr=nil, sp=nil})
hi('LspDiagnosticsSignInformation', {fg=p.base0C, bg=p.base01, attr=nil, sp=nil})
hi('LspDiagnosticsSignWarning', {fg=p.base0E, bg=p.base01, attr=nil, sp=nil})
hi('LspDiagnosticsUnderlineError', {fg=nil, bg=nil, attr='underline', sp=p.base08})
hi('LspDiagnosticsUnderlineHint', {fg=nil, bg=nil, attr='underline', sp=p.base0D})
hi('LspDiagnosticsUnderlineInformation', {fg=nil, bg=nil, attr='underline', sp=p.base0C})
hi('LspDiagnosticsUnderlineWarning', {fg=nil, bg=nil, attr='underline', sp=p.base0E})
end
-- Plugins
---- 'mini'
hi('MiniCompletionActiveParameter', {fg=nil, bg=nil, attr='underline', sp=nil})
hi('MiniCursorword', {fg=nil, bg=nil, attr='underline', sp=nil})
hi('MiniJump', {fg=nil, bg=nil, attr='undercurl', sp=p.base0E})
hi('MiniStarterCurrent', {fg=nil, bg=nil, attr=nil, sp=nil})
hi('MiniStarterFooter', {fg=p.base0D, bg=nil, attr=nil, sp=nil})
hi('MiniStarterHeader', {fg=p.base0D, bg=nil, attr=nil, sp=nil})
hi('MiniStarterInactive', {fg=p.base03, bg=nil, attr=nil, sp=nil})
hi('MiniStarterItem', {fg=p.base05, bg=nil, attr=nil, sp=nil})
hi('MiniStarterItemBullet', {fg=p.base0F, bg=nil, attr=nil, sp=nil})
hi('MiniStarterItemPrefix', {fg=p.base08, bg=nil, attr=nil, sp=nil})
hi('MiniStarterSection', {fg=p.base0F, bg=nil, attr=nil, sp=nil})
hi('MiniStarterQuery', {fg=p.base0B, bg=nil, attr=nil, sp=nil})
hi('MiniStatuslineDevinfo', {fg=p.base04, bg=p.base02, attr=nil, sp=nil})
hi('MiniStatuslineFileinfo', {fg=p.base04, bg=p.base02, attr=nil, sp=nil})
hi('MiniStatuslineFilename', {fg=p.base03, bg=p.base01, attr=nil, sp=nil})
hi('MiniStatuslineInactive', {fg=p.base03, bg=p.base01, attr=nil, sp=nil})
hi('MiniStatuslineModeCommand', {fg=p.base00, bg=p.base08, attr='bold', sp=nil})
hi('MiniStatuslineModeInsert', {fg=p.base00, bg=p.base0D, attr='bold', sp=nil})
hi('MiniStatuslineModeNormal', {fg=p.base00, bg=p.base05, attr='bold', sp=nil})
hi('MiniStatuslineModeOther', {fg=p.base00, bg=p.base03, attr='bold', sp=nil})
hi('MiniStatuslineModeReplace', {fg=p.base00, bg=p.base0E, attr='bold', sp=nil})
hi('MiniStatuslineModeVisual', {fg=p.base00, bg=p.base0B, attr='bold', sp=nil})
hi('MiniSurround', {fg=p.base01, bg=p.base09, attr=nil, sp=nil})
hi('MiniTablineCurrent', {fg=p.base05, bg=p.base02, attr='bold', sp=nil})
hi('MiniTablineFill', {fg=nil, bg=nil, attr=nil, sp=nil})
hi('MiniTablineHidden', {fg=p.base04, bg=p.base01, attr=nil, sp=nil})
hi('MiniTablineModifiedCurrent', {fg=p.base02, bg=p.base05, attr='bold', sp=nil})
hi('MiniTablineModifiedHidden', {fg=p.base01, bg=p.base04, attr=nil, sp=nil})
hi('MiniTablineModifiedVisible', {fg=p.base02, bg=p.base04, attr='bold', sp=nil})
hi('MiniTablineVisible', {fg=p.base05, bg=p.base01, attr='bold', sp=nil})
hi('MiniTrailspace', {fg=p.base00, bg=p.base08, attr=nil, sp=nil})
---- kyazdani42/nvim-tree.lua (only unlinked highlight groups)
hi('NvimTreeExecFile', { fg=p.base0B, bg=nil, attr='bold', sp=nil })
hi('NvimTreeFolderIcon', { fg=p.base03, bg=nil, attr=nil, sp=nil })
hi('NvimTreeGitDeleted', { fg=p.base08, bg=nil, attr=nil, sp=nil })
hi('NvimTreeGitDirty', { fg=p.base08, bg=nil, attr=nil, sp=nil })
hi('NvimTreeGitMerge', { fg=p.base0C, bg=nil, attr=nil, sp=nil })
hi('NvimTreeGitNew', { fg=p.base0D, bg=nil, attr=nil, sp=nil })
hi('NvimTreeGitRenamed', { fg=p.base0E, bg=nil, attr=nil, sp=nil })
hi('NvimTreeGitStaged', { fg=p.base0B, bg=nil, attr=nil, sp=nil })
hi('NvimTreeImageFile', { fg=p.base0E, bg=nil, attr='bold', sp=nil })
hi('NvimTreeIndentMarker', { fg=p.base03, bg=nil, attr=nil, sp=nil })
hi('NvimTreeOpenedFile', { fg=p.base0B, bg=nil, attr='bold', sp=nil })
hi('NvimTreeRootFolder', { fg=p.base0E, bg=nil, attr=nil, sp=nil })
hi('NvimTreeSpecialFile', { fg=p.base0D, bg=nil, attr='bold,underline', sp=nil })
hi('NvimTreeSymlink', { fg=p.base0F, bg=nil, attr='bold', sp=nil })
hi('NvimTreeWindowPicker', { fg=p.base05, bg=p.base01, attr="bold", sp=nil })
---- lewis6991/gitsigns.nvim
hi('GitSignsAdd', {fg=p.base0B, bg=p.base01, attr=nil, sp=nil})
hi('GitSignsChange', {fg=p.base03, bg=p.base01, attr=nil, sp=nil})
hi('GitSignsDelete', {fg=p.base08, bg=p.base01, attr=nil, sp=nil})
---- nvim-telescope/telescope.nvim
hi('TelescopeBorder', {fg=p.base0F, bg=nil, attr=nil, sp=nil}) -- as in 'Delimiter'
hi('TelescopeMatching', {fg=p.base0A, bg=nil, attr=nil, sp=nil}) -- as in 'Search'
hi('TelescopeMultiSelection', {fg=nil, bg=p.base01, attr='bold', sp=nil})
hi('TelescopeSelection', {fg=nil, bg=p.base01, attr='bold', sp=nil})
---- folke/which-key.nvim
hi('WhichKey', {fg=p.base0D, bg=nil, attr=nil, sp=nil})
hi('WhichKeyDesc', {fg=p.base05, bg=nil, attr=nil, sp=nil})
hi('WhichKeyFloat', {fg=p.base05, bg=p.base01, attr=nil, sp=nil})
hi('WhichKeyGroup', {fg=p.base0E, bg=nil, attr=nil, sp=nil})
hi('WhichKeySeparator', {fg=p.base0B, bg=p.base01, attr=nil, sp=nil})
hi('WhichKeyValue', {fg=p.base03, bg=nil, attr=nil, sp=nil})
-- stylua: ignore end
-- Terminal colors
vim.g.terminal_color_0 = palette.base00
vim.g.terminal_color_1 = palette.base08
vim.g.terminal_color_2 = palette.base0B
vim.g.terminal_color_3 = palette.base0A
vim.g.terminal_color_4 = palette.base0D
vim.g.terminal_color_5 = palette.base0E
vim.g.terminal_color_6 = palette.base0C
vim.g.terminal_color_7 = palette.base05
vim.g.terminal_color_8 = palette.base03
vim.g.terminal_color_9 = palette.base08
vim.g.terminal_color_10 = palette.base0B
vim.g.terminal_color_11 = palette.base0A
vim.g.terminal_color_12 = palette.base0D
vim.g.terminal_color_13 = palette.base0E
vim.g.terminal_color_14 = palette.base0C
vim.g.terminal_color_15 = palette.base07
vim.g.terminal_color_background = vim.g.terminal_color_0
vim.g.terminal_color_foreground = vim.g.terminal_color_5
if vim.o.background == 'light' then
vim.g.terminal_color_background = vim.g.terminal_color_7
vim.g.terminal_color_foreground = vim.g.terminal_color_2
end
end
function H.highlight_gui(group, args)
-- NOTE: using `string.format` instead of gradually growing string with `..`
-- is faster. Crude estimate for this particular case: whole colorscheme
-- loading decreased from ~3.6ms to ~3.0ms, i.e. by about 20%.
local command = string.format(
[[highlight %s guifg=%s guibg=%s gui=%s guisp=%s]],
group,
args.fg or 'NONE',
args.bg or 'NONE',
args.attr or 'NONE',
args.sp or 'NONE'
)
vim.cmd(command)
end
function H.highlight_both(group, args)
local command = string.format(
[[highlight %s guifg=%s ctermfg=%s guibg=%s ctermbg=%s gui=%s cterm=%s guisp=%s]],
group,
args.fg and args.fg.gui or 'NONE',
args.fg and args.fg.cterm or 'NONE',
args.bg and args.bg.gui or 'NONE',
args.bg and args.bg.cterm or 'NONE',
args.attr or 'NONE',
args.attr or 'NONE',
args.sp and args.sp.gui or 'NONE'
)
vim.cmd(command)
end
---- Compound (gui and cterm) palette
function H.make_compound_palette(palette, use_cterm)
local cterm_table = use_cterm
if type(use_cterm) == 'boolean' then
cterm_table = MiniBase16.rgb_palette_to_cterm_palette(palette)
end
local res = {}
for name, _ in pairs(palette) do
res[name] = { gui = palette[name], cterm = cterm_table[name] }
end
return res
end
---- Optimal scales
---- Make a set of equally spaced hues which are as different to present hues
---- as possible
function H.make_different_hues(present_hues, n)
local max_offset = math.floor(360 / n + 0.5)
local dist, best_dist = nil, -math.huge
local best_hues, new_hues
for offset = 0, max_offset - 1, 1 do
new_hues = H.make_hue_scale(n, offset)
-- Compute distance as usual 'minimum distance' between two sets
dist = H.dist_circle_set(new_hues, present_hues)
-- Decide if it is the best
if dist > best_dist then
best_hues, best_dist = new_hues, dist
end
end
return best_hues
end
function H.make_hue_scale(n, offset)
local step = math.floor(360 / n + 0.5)
local res = {}
for i = 0, n - 1, 1 do
table.insert(res, (offset + i * step) % 360)
end
return res
end
---- Terminal colors
---- Sources:
---- - https://github.com/shawncplus/Vim-toCterm/blob/master/lib/Xterm.php
---- - https://gist.github.com/MicahElliott/719710
-- stylua: ignore start
H.cterm_first16 = {
{ r = 0, g = 0, b = 0 },
{ r = 205, g = 0, b = 0 },
{ r = 0, g = 205, b = 0 },
{ r = 205, g = 205, b = 0 },
{ r = 0, g = 0, b = 238 },
{ r = 205, g = 0, b = 205 },
{ r = 0, g = 205, b = 205 },
{ r = 229, g = 229, b = 229 },
{ r = 127, g = 127, b = 127 },
{ r = 255, g = 0, b = 0 },
{ r = 0, g = 255, b = 0 },
{ r = 255, g = 255, b = 0 },
{ r = 92, g = 92, b = 255 },
{ r = 255, g = 0, b = 255 },
{ r = 0, g = 255, b = 255 },
{ r = 255, g = 255, b = 255 },
}
-- stylua: ignore end
H.cterm_basis = { 0, 95, 135, 175, 215, 255 }
function H.cterm2rgb(i)
if i < 16 then
return H.cterm_first16[i + 1]
end
if 16 <= i and i <= 231 then
i = i - 16
local r = H.cterm_basis[math.floor(i / 36) % 6 + 1]
local g = H.cterm_basis[math.floor(i / 6) % 6 + 1]
local b = H.cterm_basis[i % 6 + 1]
return { r = r, g = g, b = b }
end
if 232 <= i and i <= 255 then
local c = 8 + (i - 232) * 10
return { r = c, g = c, b = c }
end
end
function H.ensure_cterm_palette()
if H.cterm_palette then
return
end
H.cterm_palette = {}
for i = 0, 255 do
H.cterm_palette[i] = H.cterm2rgb(i)
end
end
---- Color conversion
---- Source: https://www.easyrgb.com/en/math.php
---- Accuracy is usually around 2-3 decimal digits, which should be fine
------ HEX <-> CIELCh(uv)
function H.hex2lch(hex)
local res = hex
for _, f in pairs({ H.hex2rgb, H.rgb2xyz, H.xyz2luv, H.luv2lch }) do
res = f(res)
end
return res
end
function H.lch2hex(lch)
local res = lch
for _, f in pairs({ H.lch2luv, H.luv2xyz, H.xyz2rgb, H.rgb2hex }) do
res = f(res)
end
return res
end
------ HEX <-> RGB
function H.hex2rgb(hex)
local dec = tonumber(hex:sub(2), 16)
local b = math.fmod(dec, 256)
local g = math.fmod((dec - b) / 256, 256)
local r = math.floor(dec / 65536)
return { r = r, g = g, b = b }
end
function H.rgb2hex(rgb)
-- Round and trim values
local t = vim.tbl_map(function(x)
x = math.min(math.max(x, 0), 255)
return math.floor(x + 0.5)
end, rgb)
return '#' .. string.format('%02x', t.r) .. string.format('%02x', t.g) .. string.format('%02x', t.b)
end
------ RGB <-> XYZ
function H.rgb2xyz(rgb)
local t = vim.tbl_map(function(c)
c = c / 255
if c > 0.04045 then
c = ((c + 0.055) / 1.055) ^ 2.4
else
c = c / 12.92
end
return 100 * c
end, rgb)
-- Source of better matrix: http://brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
local x = 0.41246 * t.r + 0.35757 * t.g + 0.18043 * t.b
local y = 0.21267 * t.r + 0.71515 * t.g + 0.07217 * t.b
local z = 0.01933 * t.r + 0.11919 * t.g + 0.95030 * t.b
return { x = x, y = y, z = z }
end
function H.xyz2rgb(xyz)
-- Source of better matrix: http://brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
-- stylua: ignore start
local r = 3.24045 * xyz.x - 1.53713 * xyz.y - 0.49853 * xyz.z
local g = -0.96927 * xyz.x + 1.87601 * xyz.y + 0.04155 * xyz.z
local b = 0.05564 * xyz.x - 0.20403 * xyz.y + 1.05722 * xyz.z
-- stylua: ignore end
return vim.tbl_map(function(c)
c = c / 100
if c > 0.0031308 then
c = 1.055 * (c ^ (1 / 2.4)) - 0.055
else
c = 12.92 * c
end
return 255 * c
end, {
r = r,
g = g,
b = b,
})
end
------ XYZ <-> CIELuv
-------- Using white reference for D65 and 2 degress
H.ref_u = (4 * 95.047) / (95.047 + (15 * 100) + (3 * 108.883))
H.ref_v = (9 * 100) / (95.047 + (15 * 100) + (3 * 108.883))
function H.xyz2luv(xyz)
local x, y, z = xyz.x, xyz.y, xyz.z
if x + y + z == 0 then
return { l = 0, u = 0, v = 0 }
end
local var_u = 4 * x / (x + 15 * y + 3 * z)
local var_v = 9 * y / (x + 15 * y + 3 * z)
local var_y = y / 100
if var_y > 0.008856 then
var_y = var_y ^ (1 / 3)
else
var_y = (7.787 * var_y) + (16 / 116)
end
local l = (116 * var_y) - 16
local u = 13 * l * (var_u - H.ref_u)
local v = 13 * l * (var_v - H.ref_v)
return { l = l, u = u, v = v }
end
function H.luv2xyz(luv)
if luv.l == 0 then
return { x = 0, y = 0, z = 0 }
end
local var_y = (luv.l + 16) / 116
if var_y ^ 3 > 0.008856 then
var_y = var_y ^ 3
else
var_y = (var_y - 16 / 116) / 7.787
end
local var_u = luv.u / (13 * luv.l) + H.ref_u
local var_v = luv.v / (13 * luv.l) + H.ref_v
local y = var_y * 100
local x = -(9 * y * var_u) / ((var_u - 4) * var_v - var_u * var_v)
local z = (9 * y - 15 * var_v * y - var_v * x) / (3 * var_v)
return { x = x, y = y, z = z }
end
------ CIELuv <-> CIELCh(uv)
H.tau = 2 * math.pi
function H.luv2lch(luv)
local c = math.sqrt(luv.u ^ 2 + luv.v ^ 2)
local h
if c == 0 then
h = 0
else
-- Convert [-pi, pi] radians to [0, 360] degrees
h = (math.atan2(luv.v, luv.u) % H.tau) * 360 / H.tau
end
return { l = luv.l, c = c, h = h }
end
function H.lch2luv(lch)
local angle = lch.h * H.tau / 360
local u = lch.c * math.cos(angle)
local v = lch.c * math.sin(angle)
return { l = lch.l, u = u, v = v }
end
---- Distances
function H.dist_circle(x, y)
local d = math.abs(x - y) % 360
return d > 180 and (360 - d) or d
end
function H.dist_circle_set(set1, set2)
-- Minimum distance between all pairs
local dist = math.huge
local d
for _, x in pairs(set1) do
for _, y in pairs(set2) do
d = H.dist_circle(x, y)
if dist > d then
dist = d
end
end
end
return dist
end
function H.nearest_rgb_id(rgb_target, rgb_palette)
local best_dist = math.huge
local best_id, dist
for id, rgb in pairs(rgb_palette) do
dist = math.abs(rgb_target.r - rgb.r) + math.abs(rgb_target.g - rgb.g) + math.abs(rgb_target.b - rgb.b)
if dist < best_dist then
best_id, best_dist = id, dist
end
end
return best_id
end
return MiniBase16