మాడ్యూల్:Clade/labels

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local p = {}

--local args =frame:getParent().args  -- get parent arguments
--local args = {}

p.getArgs = function(frame) 
	--return frame.args              -- use frame arguments
	return frame:getParent().args  -- use parent arguments
end
p.main = function(frame)
     
    args = p.getArgs(frame) 
    
    local i = 1                     -- index for labels
    local output = ""
    --[[local groupStyle = args['style']
    local topStyle = args['top']
    local leftStyle = args['left']
    local rightStyle = args['right']
    local bottomStyle = args['bottom']
    ]]
    -- parameters for all labels
    local width = args['width'] -- or "5em;"
    --local style = args['style'] or ""
    --local color = args['width'] or ""
    
    local longestString = 0
    
    while  args['label'..i] do
    	
	    local label = args['label'..i]     or ""
	    if #label > longestString then longestString = #label end
	    
	    local style  = args['style'..i]  or args['style']  or ""  
	    local color  = args['color'..i]  or args['color']  or ""  
	    local top    = args['top'..i]    or args['top']    or ""
	    local left   = args['left'..i]   or args['left']   or ""
	    local right  = args['right'..i]  or args['right']  or ""
	    local bottom = args['bottom'..i] or args['bottom'] or ""
	    if top ~= ""    then top    = 'top:'     .. top    .. ';' end  
	    if left ~= ""   then left   = 'left:'    .. left   .. ';' end  
	    if right ~= ""  then right  = 'right:'   .. right  .. ';' end  
	    if bottom ~= "" then bottom = 'bottom:'  .. bottom .. ';' end 
	    if color ~= ""  then color  = 'color:'   .. color .. ';' end
	    --if no color:find(";", -1, true)  then color = color .. ';' end
	   
	    
	    --local position = top .. left .. right .. bottom
	    
		output = output .. '<div style="position:absolute;white-space:nowrap;' 
		                .. style .. color                                       -- CSS styling
		                .. top .. left .. right .. bottom .. '">'               -- position of label
		                .. label                                                -- content of label
		                .. '</div>'
		i=i+1
	end
	if output ~= "" then
		local styleStr = ""
		--widthStr = 'width:' .. (longestString*0.5)..'em;' -- can't take account of formatting or <br/>
		if width then styleStr = 'style="width:' .. width .. '"' end
 		
		output = '<div ' .. styleStr ..'>' .. output .. '</div>'
	end
	return output
end

return p