-- Id: 4642
-- More information about this indicator can be found at:
-- http://fxcodebase.com/code/viewtopic.php?f=17&t=6596

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function Init()
    indicator:name("New Trend");
    indicator:description("");
    indicator:requiredSource(core.Bar);
    indicator:type(core.Oscillator);
	indicator.parameters:addGroup("Caclulation");
	indicator.parameters:addInteger("ATRP", "ATR Period", "ATR Period", 12);
    indicator.parameters:addInteger("MVAP", "MVA Period", "MVA Period", 14);
	indicator.parameters:addBoolean("It_Is_Signal" , "Signal Mode", "",false);	
	

    indicator.parameters:addGroup("Style");
	indicator.parameters:addColor("UpUp", "Trend Color","", core.rgb(0, 255, 0));
	indicator.parameters:addColor("DownDown", "Down Trend Color","", core.rgb(255, 0, 0));
	indicator.parameters:addColor("Neutral", "Neutral Color","", core.rgb(128, 128, 128));
 
   indicator.parameters:addDouble("HSpace", "Horizontal Spacing (%)","",5, 0, 50); 
   
   
end 

local HSpace;
local UpUp,DownDown,Neutral;

local ATRP;
local MVAP;

local ATR;
local MVA;
local Signal, It_Is_Signal;
function Prepare(nameOnly)
 
    source = instance.source;	
	HSpace=(instance.parameters.HSpace/100);
	
   UpUp=instance.parameters.UpUp;
   DownDown=instance.parameters.DownDown;
   It_Is_Signal=instance.parameters.It_Is_Signal; 
   Neutral=instance.parameters.Neutral;
    
     
	 local name = profile:id() .. " " .. source:name()  .. " : " .. source:barSize();
	 instance:name(name );
	 
	 if nameOnly then
		return;
	 end
	 
	 
	  instance:setLabelColor(Neutral);
   
     ATRP = instance.parameters.ATRP;
    MVAP = instance.parameters.MVAP; 
  
    
	MVA=core.indicators:create("MVA", source.close, MVAP );
	ATR=core.indicators:create("ATR", source, ATRP );
	
	first = math.max(MVA.DATA:first(),  ATR.DATA:first() );
	 
	if not It_Is_Signal then
   instance:ownerDrawn(true);
   else
   Signal = instance:addStream("Signal", core.Bar, name .. ".Signal", "Signal", Neutral,first)
    Signal:setPrecision(math.max(2, instance.source:getPrecision()));
   end
   
   
	
	

		
end



function Update(period, mode)

     ATR:update(mode);
	 MVA:update(mode);
	 
	 if It_Is_Signal then
	 
	 
	                                                      if source.close[period] > MVA.DATA[period] + ATR.DATA[period]  then		 
																	 
															Signal[period]=1;
																 
														    Signal:setColor(period, UpUp);
															elseif source.close[period] < MVA.DATA[period] - ATR.DATA[period] then	
																	 
																Signal[period]=-1;
																Signal:setColor(period, DownDown);
														   else	 
					   
															   Signal[period]=0;
															   Signal:setColor(period, Neutral);
																					
														end		 
	 
	 end
	 
	
end

local init = false;

function Draw (stage, context)

    if stage  ~= 0 then
	return;
	end
	 
    

    local style = context.SINGLELINE + context.CENTER + context.VCENTER;
	 
  
   context:setClipRectangle(context:left(), context:top(), context:right(), context:bottom());
   
        if not init then
		     context:createPen (1, context.SOLID, 1, UpUp)       
			context:createSolidBrush(2, UpUp);
			
			  
			 context:createPen (7, context.SOLID, 1, DownDown)       
			context:createSolidBrush(8, DownDown);
			
			context:createPen (9, context.SOLID, 1, Neutral)       
			context:createSolidBrush(10, Neutral);
			 
		  
            init = true;
        end
     
        
        local first = math.max(source:first(), context:firstBar ());
        local last = math.min (context:lastBar (), source:size()-1);
		
    
	    X0, X1, X2 = context:positionOfBar (source:size()-1); 
		 HCellSize =((X2-X1)/100)*HSpace;
		 
	
        local period;
		
			 for period= first, last, 1 do	   
			   x0, x1, x2 = context:positionOfBar (period);
			   
			
						
								
										if ATR.DATA:hasData(period) and MVA.DATA:hasData(period-1) then 
										
												 
														 if source.close[period] > MVA.DATA[period] + ATR.DATA[period]  then		 
																	 
																	C2=2;
																	C1=1;
																 
														 
															elseif source.close[period] < MVA.DATA[period] - ATR.DATA[period] then	
																	 
																	C2=8;
																	C1=7;
														   else	 
					   
																 C1=9; C2=10;		
																					
														end		 
															
													 
												     
									   else		
									   C1=9; C2=10;										   
									   end 
									   
			          	X1= x1+HCellSize;
                        X2= x2-HCellSize;
						
						if X1> x0 then
						X1= x0; 
						end
						
						if X2< x0 then
						X2= x0; 
						end
						
			           context:drawRectangle (C1, C2, X1, context:top(), X2, context:bottom()  );
			end					
				 
				
	
end