⚠ NOTICE
The game has been released in Early Access on 26th of April, 2024.
Please keep in mind that any information provided on this Wiki may be incomplete or subject to change as the game progresses.
Module:Color contrast
From Manor Lords Official Wiki
Documentation for this module may be created at Module:Color contrast/doc
-- -- This module implements -- {{Color contrast ratio}} -- {{Greater color contrast ratio}} -- {{ColorToLum}} -- {{RGBColorToLum}} -- local p = {} local HTMLcolor = mw.loadData( 'Module:Color contrast/colors' ) local function sRGB (v) if (v <= 0.03928) then v = v / 12.92 else v = math.pow((v+0.055)/1.055, 2.4) end return v end local function rgbdec2lum(R, G, B) if ( 0 <= R and R < 256 and 0 <= G and G < 256 and 0 <= B and B < 256 ) then return 0.2126 * sRGB(R/255) + 0.7152 * sRGB(G/255) + 0.0722 * sRGB(B/255) else return '' end end local function hsl2lum(h, s, l) if ( 0 <= h and h < 360 and 0 <= s and s <= 1 and 0 <= l and l <= 1 ) then local c = (1 - math.abs(2*l - 1))*s local x = c*(1 - math.abs( math.fmod(h/60, 2) - 1) ) local m = l - c/2 local r, g, b = m, m, m if( 0 <= h and h < 60 ) then r = r + c g = g + x elseif( 60 <= h and h < 120 ) then r = r + x g = g + c elseif( 120 <= h and h < 180 ) then g = g + c b = b + x elseif( 180 <= h and h < 240 ) then g = g + x b = b + c elseif( 240 <= h and h < 300 ) then r = r + x b = b + c elseif( 300 <= h and h < 360 ) then r = r + c b = b + x end return rgbdec2lum(255*r, 255*g, 255*b) else return '' end end local function color2lum(c) if (c == nil) then return '' end -- html '#' entity c = c:gsub("#", "#") -- whitespace c = c:match( '^%s*(.-)[%s;]*$' ) -- unstrip nowiki strip markers c = mw.text.unstripNoWiki(c) -- lowercase c = c:lower() -- first try to look it up local L = HTMLcolor[c] if (L ~= nil) then return L end -- convert from hsl if mw.ustring.match(c,'^hsl%([%s]*[0-9][0-9%.]*[%s]*,[%s]*[0-9][0-9%.]*%%[%s]*,[%s]*[0-9][0-9%.]*%%[%s]*%)$') then local h, s, l = mw.ustring.match(c,'^hsl%([%s]*([0-9][0-9%.]*)[%s]*,[%s]*([0-9][0-9%.]*)%%[%s]*,[%s]*([0-9][0-9%.]*)%%[%s]*%)$') return hsl2lum(tonumber(h), tonumber(s)/100, tonumber(l)/100) end -- convert from rgb if mw.ustring.match(c,'^rgb%([%s]*[0-9][0-9]*[%s]*,[%s]*[0-9][0-9]*[%s]*,[%s]*[0-9][0-9]*[%s]*%)$') then local R, G, B = mw.ustring.match(c,'^rgb%([%s]*([0-9][0-9]*)[%s]*,[%s]*([0-9][0-9]*)[%s]*,[%s]*([0-9][0-9]*)[%s]*%)$') return rgbdec2lum(tonumber(R), tonumber(G), tonumber(B)) end -- convert from rgb percent if mw.ustring.match(c,'^rgb%([%s]*[0-9][0-9%.]*%%[%s]*,[%s]*[0-9][0-9%.]*%%[%s]*,[%s]*[0-9][0-9%.]*%%[%s]*%)$') then local R, G, B = mw.ustring.match(c,'^rgb%([%s]*([0-9][0-9%.]*)%%[%s]*,[%s]*([0-9][0-9%.]*)%%[%s]*,[%s]*([0-9][0-9%.]*)%%[%s]*%)$') return rgbdec2lum(255*tonumber(R)/100, 255*tonumber(G)/100, 255*tonumber(B)/100) end -- remove leading # (if there is one) and whitespace c = mw.ustring.match(c, '^[%s#]*([a-f0-9]*)[%s]*$') -- split into rgb local cs = mw.text.split(c or '', '') if( #cs == 6 ) then local R = 16*tonumber('0x' .. cs[1]) + tonumber('0x' .. cs[2]) local G = 16*tonumber('0x' .. cs[3]) + tonumber('0x' .. cs[4]) local B = 16*tonumber('0x' .. cs[5]) + tonumber('0x' .. cs[6]) return rgbdec2lum(R, G, B) elseif ( #cs == 3 ) then local R = 16*tonumber('0x' .. cs[1]) + tonumber('0x' .. cs[1]) local G = 16*tonumber('0x' .. cs[2]) + tonumber('0x' .. cs[2]) local B = 16*tonumber('0x' .. cs[3]) + tonumber('0x' .. cs[3]) return rgbdec2lum(R, G, B) end -- failure, return blank return '' end -- This exports the function for use in other modules. -- The colour is passed as a string. function p._lum(color) return color2lum(color) end function p._greatercontrast(args) local bias = tonumber(args['bias'] or '0') or 0 local css = (args['css'] and args['css'] ~= '') and true or false local v1 = color2lum(args[1] or '') local c2 = args[2] or '#FFFFFF' local v2 = color2lum(c2) local c3 = args[3] or '#000000' local v3 = color2lum(c3) local ratio1 = -1; local ratio2 = -1; if (type(v1) == 'number' and type(v2) == 'number') then ratio1 = (v2 + 0.05)/(v1 + 0.05) ratio1 = (ratio1 < 1) and 1/ratio1 or ratio1 end if (type(v1) == 'number' and type(v3) == 'number') then ratio2 = (v3 + 0.05)/(v1 + 0.05) ratio2 = (ratio2 < 1) and 1/ratio2 or ratio2 end if css then local c1 = args[1] or '' if mw.ustring.match(c1, '^[A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9]$') or mw.ustring.match(c1, '^[A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9]$') then c1 = '#' .. c1 end if mw.ustring.match(c2, '^[A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9]$') or mw.ustring.match(c2, '^[A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9]$') then c2 = '#' .. c2 end if mw.ustring.match(v3, '^[A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9]$') or mw.ustring.match(v3, '^[A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9]$') then c3 = '#' .. c3 end return 'background-color:' .. c1 .. '; color:' .. ((ratio1 > 0) and (ratio2 > 0) and ((ratio1 + bias > ratio2) and c2 or c3) or '') .. ';' end return (ratio1 > 0) and (ratio2 > 0) and ((ratio1 + bias > ratio2) and c2 or c3) or '' end function p._ratio(args) local v1 = color2lum(args[1]) local v2 = color2lum(args[2]) if (type(v1) == 'number' and type(v2) == 'number') then -- v1 should be the brighter of the two. if v2 > v1 then v1, v2 = v2, v1 end return (v1 + 0.05)/(v2 + 0.05) else return args['error'] or '?' end end function p._styleratio(args) local style = (args[1] or ''):lower() local bg, fg = 'white', 'black' local lum_bg, lum_fg = 1, 0 if args[2] then local lum = color2lum(args[2]) if lum ~= '' then bg, lum_bg = args[2], lum end end if args[3] then local lum = color2lum(args[3]) if lum ~= '' then fg, lum_fg = args[3], lum end end local slist = mw.text.split(mw.ustring.gsub(mw.ustring.gsub(style or '', '&#[Xx]23;', '#'), '#', '#'), ';') for k = 1,#slist do local s = slist[k] local k,v = s:match( '^[%s]*([^:]-):([^:]-)[%s;]*$' ) k = k or '' v = v or '' if (k:match('^[%s]*(background)[%s]*$') or k:match('^[%s]*(background%-color)[%s]*$')) then local lum = color2lum(v) if( lum ~= '' ) then bg, lum_bg = v, lum end elseif (k:match('^[%s]*(color)[%s]*$')) then local lum = color2lum(v) if( lum ~= '' ) then bg, lum_fg = v, lum end end end if lum_bg > lum_fg then return (lum_bg + 0.05)/(lum_fg + 0.05) else return (lum_fg + 0.05)/(lum_bg + 0.05) end end --[[ Use {{#invoke:Color contrast|somecolor}} directly or {{#invoke:Color contrast}} from a wrapper template. Parameters: -- |1= — required; A color to check. --]] function p.lum(frame) local color = frame.args[1] or frame:getParent().args[1] return p._lum(color) end function p.ratio(frame) local args = frame.args[1] and frame.args or frame:getParent().args return p._ratio(args) end function p.styleratio(frame) local args = frame.args[1] and frame.args or frame:getParent().args return p._styleratio(args) end function p.greatercontrast(frame) local args = frame.args[1] and frame.args or frame:getParent().args return p._greatercontrast(args) end return p