-- Id: 15166
-- More information about this indicator can be found at:
-- http://fxcodebase.com/code/viewtopic.php?f=17&t=62956

--+------------------------------------------------------------------+
--|                               Copyright © 2018, Gehtsoft USA LLC |
--|                                            http://fxcodebase.com |
--+------------------------------------------------------------------+
--|                                      Developed by : Mario Jemic  |
--|                                          mario.jemic@gmail.com   |
--+------------------------------------------------------------------+
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--+------------------------------------------------------------------+

function Init()
    indicator:name("Price Action Indicator");
    indicator:description("");
    indicator:requiredSource(core.Bar);
    indicator:type(core.Indicator);


	
	indicator.parameters:addGroup("Placement");
	indicator.parameters:addString("Y", " Y Placement","" , "Top");
    indicator.parameters:addStringAlternative("Y", "Top", "Top" , "Top");
    indicator.parameters:addStringAlternative("Y", "Bottom", "Bottom" , "Bottom"); 
	
	indicator.parameters:addString("X", " X Placement","" , "Left");
    indicator.parameters:addStringAlternative("X", "Right", "Right" , "Right");
    indicator.parameters:addStringAlternative("X", "Left", "Left" , "Left"); 
   indicator.parameters:addInteger("yShift", "Shift", "Shift" , 0); 
	
	indicator.parameters:addGroup("Style");
   indicator.parameters:addColor("Label", "Label Color", "", core.rgb(0, 0, 0)); 
   indicator.parameters:addInteger("Size", "Font Size", "", 20);
    indicator.parameters:addColor("color", "Line Color", "", core.rgb(255, 0, 0));
 
end

-- Indicator instance initialization routine
-- Processes indicator parameters and creates output streams
-- TODO: Refine the first period calculation for each of the output streams.
-- TODO: Calculate all constants, create instances all subsequent indicators and load all required libraries
-- Parameters block

local first;
local source = nil;
local X,Y;
local font;
local Label;
local Size;
local yShift;

-- Routine
function Prepare(nameOnly)
    Y=instance.parameters.Y;
	X=instance.parameters.X;  
    Label=instance.parameters.Label;
	Size=instance.parameters.Size;   
	yShift=instance.parameters.yShift;
    source = instance.source;
    first=source:first();
	
    local name = profile:id() .. "(" .. source:name() .. ")";
	instance:name(name);
	if nameOnly then
		return;
	end
   	
    instance:ownerDrawn(true);

	
end

-- Indicator calculation routine
-- TODO: Add your code for calculation output values
 
function Update(period)   

  
end
 
local init = false;
 
function Draw(stage, context)
 
 
 if stage~= 2 then
	return;
	end
	
	
        if not init then
           context:createFont (1, "Arial", context:pointsToPixels (Size), context:pointsToPixels (Size), 0);
            init = true;
        end
	
	--[[
	strong up : current close is above prior bar high
	weak up : current close is above prior close but less than or equal to prior bar high
	no move : current close is equal to prior bar close
	weak down : current close is less than prior bar close but greater than or equal prior bar low
	strong down : current close is less than previous bar low
	]]
			
	local Text1=  "";
	
	period= source:size()-1;
	if source.close[period]> source.high[period-1] then
	Text1= "Strong Up";
	elseif source.close[period]< source.low[period-1] then
	Text1= "Strong Down";	
	elseif source.close[period]> source.close[period-1] and source.close[period]<= source.high[period-1]  then
	Text1= "Weak Up";
	elseif source.close[period]< source.close[period-1] and source.close[period]>= source.low[period-1] then
	Text1= "Weak Down";
	
	elseif source.close[period]== source.close[period-1] then
	Text1= "No Move";
	end
	
   width, height = context:measureText (1, Text1, 0);
   context:drawText (1,  Text1, Label, -1,  iX(context,width,0,1) ,  iY(context,height,1+yShift,1) ,iX(context,width,0,2),iY(context,height,1+yShift,2), 0 );	
   

end		
 
 

function iX(context, width,Shift,x)

	if X== "Left" then
	return  context:left()+ Shift*width +  width*(x-1) ;
	else
	return context:right() - width*Shift -  width*(1-(x-1));
	end
end



function iY(context, height,Shift,x)

	if Y== "Top" then
		return context:top()+Shift* height + height*(x-1) ;
	else
	return context:bottom()-Shift* height + height*(x-1) ;
	end
end