Module:Color contrast: Difference between revisions
refactor to allow this to be called from another module
m>Frietjes (add shorthand) |
m>Frietjes (refactor to allow this to be called from another module) |
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| Line 120: | Line 120: | ||
-- failure, return blank | -- failure, return blank | ||
return '' | return '' | ||
end | |||
local function colors2ratio(c1,c2) | |||
local v1 = color2lum(c1) | |||
local v2 = color2lum(c2) | |||
if (type(v1) == 'number' and type(v2) == 'number') then | |||
return (v2 + 0.05)/(v1 + 0.05) | |||
else | |||
return '' | |||
end | |||
end | end | ||
| Line 127: | Line 137: | ||
function p.ratio(frame) | function p.ratio(frame) | ||
local | local r = colors2ratio( | ||
frame.args[1] or frame:getParent().args[1], | |||
if ( | frame.args[2] or frame:getParent().args[2] | ||
return | ) | ||
if (r ~= '') then | |||
return r | |||
else | else | ||
return frame.args['error'] or frame:getParent().args['error'] or '?' | return frame.args['error'] or frame:getParent().args['error'] or '?' | ||