Module:ColorBanner

Documentatie voor deze module kan aangemaakt worden op de volgende pagina: Module:ColorBanner/doc

-- Module:ColorBanner
local p = {}

-- Helper: choose text color based on background brightness
local function getTextColor(bg)
    -- crude luminance check: convert hex to RGB
    local r = tonumber(bg:sub(2,3),16)
    local g = tonumber(bg:sub(4,5),16)
    local b = tonumber(bg:sub(6,7),16)
    local luminance = (0.299*r + 0.587*g + 0.114*b)

    if luminance > 128 then
        return "#000000" -- dark text for light background
    else
        return "#FFFFFF" -- white text for dark background
    end
end

function p.banner(frame)
    local args = frame:getParent().args
    local bg = args.bg or "#333333" -- default dark gray
    local fg = args.fg or getTextColor(bg)
    local text = args.text or "Example banner"

    return string.format(
        '<div style="background:%s; color:%s; padding:0.5em; text-align:center;">%s</div>',
        bg, fg, text
    )
end

return p