-- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=20 --+------------------------------------------------------------------+ --| Copyright © 2018, Gehtsoft USA LLC | --| http://fxcodebase.com | --+------------------------------------------------------------------+ --| Developed by : Mario Jemic | --| mario.jemic@gmail.com | --+------------------------------------------------------------------+ --| Support our efforts by donating | --| Paypal: https://goo.gl/9Rj74e | --+------------------------------------------------------------------+ --| Patreon : https://goo.gl/GdXWeN | --| BitCoin : 15VCJTLaz12Amr7adHSBtL9v8XomURo9RF | --| BitCoin Cash: 1BEtS465S3Su438Kc58h2sqvVvHK9Mijtg | --| Ethereum : 0x8C110cD61538fb6d7A2B47858F0c0AaBd663068D | --| LiteCoin : LLU8PSY2vsq7B9kRELLZQcKf5nJQrdeqwD | --+------------------------------------------------------------------+ -- initializes the indicator function Init() -- indicator:fail() indicator:name("Donchian Channel") indicator:description("The simple trend-following indicator. Shows highest high and lowest low for the specified number of periods."); indicator:requiredSource(core.Bar); indicator:type(core.Indicator); indicator.parameters:addGroup("Mode"); indicator.parameters:addString("Live", "End of Turn / Live", "", "Live"); indicator.parameters:addStringAlternative("Live", "End of Turn", "", "End of Turn"); indicator.parameters:addStringAlternative("Live", "Live", "", "Live"); indicator.parameters:addGroup("Calculation"); indicator.parameters:addInteger("N", "Number of periods", "", 20, 2, 10000); indicator.parameters:addString("MD", "Show Close or High/Low", "", "Close"); indicator.parameters:addStringAlternative("MD", "Close", "", "Close"); indicator.parameters:addStringAlternative("MD", "High/Low", "", "HighLow"); indicator.parameters:addGroup("Selector"); indicator.parameters:addString("SHL", "Show High/Low lines", "Show High/Low lines", "Both"); indicator.parameters:addStringAlternative("SHL", "Both lines", "", "Both"); indicator.parameters:addStringAlternative("SHL", "High only", "", "High"); indicator.parameters:addStringAlternative("SHL", "Low only", "", "Low"); indicator.parameters:addBoolean("SM", "Show middle line", "", true); indicator.parameters:addBoolean("SUB", "Show Sub Levels", "", true); indicator.parameters:addBoolean("AC", "Analyze the current period", "", true); indicator.parameters:addGroup("Style"); indicator.parameters:addColor("clrDU", "Color of the Up line", "", core.rgb(255, 255, 0)); indicator.parameters:addInteger("widthDU", "Up Line Width", "", 1, 1, 5); indicator.parameters:addInteger("styleDU", "Up Line Style", "", core.LINE_SOLID); indicator.parameters:setFlag("styleDU", core.FLAG_LINE_STYLE); indicator.parameters:addColor("clrDN", "Color of the Down line", "", core.rgb(255, 255, 0)); indicator.parameters:addInteger("widthDN", "Down Line Width", "", 1, 1, 5); indicator.parameters:addInteger("styleDN", "Down Line Style", "", core.LINE_SOLID); indicator.parameters:setFlag("styleDN", core.FLAG_LINE_STYLE); indicator.parameters:addColor("clrDM", "Color of the middle line", "", core.rgb(255, 255, 0)); indicator.parameters:addInteger("widthDM", "Middle Line Width", "", 1, 1, 5); indicator.parameters:addInteger("styleDM", "Middle Line Style", "", core.LINE_SOLID); indicator.parameters:setFlag("styleDM", core.FLAG_LINE_STYLE); indicator.parameters:addColor("clrSUB", "Color of the Sub Level lines", "", core.rgb(255, 255, 0)); indicator.parameters:addInteger("widthSUB", "Sub Level Line Width", "", 1, 1, 5); indicator.parameters:addInteger("styleSUB", "Sub Level Line Style", "", core.LINE_SOLID); indicator.parameters:setFlag("styleSUB", core.FLAG_LINE_STYLE); indicator.parameters:addGroup("Alert Style"); indicator.parameters:addColor("Up", "Up Trend Color", "", core.rgb(0, 0, 255)); indicator.parameters:addColor("Down", "Down Trend Color", "", core.rgb(0, 0, 255)); indicator.parameters:addInteger("Size", "Label Size", "", 10, 1 , 100); indicator.parameters:addGroup("Alerts Sound"); indicator.parameters:addBoolean("PlaySound", "Play Sound", "", true); indicator.parameters:addBoolean("RecurrentSound", "Recurrent Sound", "", false); indicator.parameters:addGroup("Alerts Email"); indicator.parameters:addBoolean("SendEmail", "Send Email", "", true); indicator.parameters:addString("Email", "Email", "", ""); indicator.parameters:setFlag("Email", core.FLAG_EMAIL); indicator.parameters:addBoolean("Show", "Show Dialog box Alert", "", true); Parameters (1, "Upper Outer Line"); Parameters (2, "Upper Inner Line"); Parameters (3, "Central Line"); Parameters (4, "Lower Inner Line"); Parameters (5, "Lower Outer Line"); end function Parameters ( id, Label ) indicator.parameters:addGroup(Label .. " Alert"); indicator.parameters:addBoolean("ON"..id , "Show " .. Label .." Alert" , "", true); indicator.parameters:addFile("Up"..id, Label .. " Cross Over Sound", "", ""); indicator.parameters:setFlag("Up"..id, core.FLAG_SOUND); indicator.parameters:addFile("Down"..id, Label .. " Cross Under Sound", "", ""); indicator.parameters:setFlag("Down"..id, core.FLAG_SOUND); indicator.parameters:addString("Label"..id, "Label", "", Label); end local Number = 5; local Out={}; local first = 0; local n = 0; local ac; local sm; local source = nil; local dn = nil; local du = nil; local dm = nil; local MODE=nil; local SUB; local SHL; local low, high; --//////////////// local Up={}; local Down={}; local Label={}; local ON={}; local Line; local up={}; local down={}; local Size; local Email; local SendEmail; local RecurrentSound ,SoundFile ; local Show; local Alert; local Indicator; local PlaySound; local Live; local FIRST=true; local U={}; local D={}; -- initializes the instance of the indicator function Prepare(nameOnly) FIRST=true; Show = instance.parameters.Show; Live = instance.parameters.Live; SUB = instance.parameters.SUB; SHL = instance.parameters.SHL; source = instance.source; n = instance.parameters.N; MODE=instance.parameters.MD; ac =instance.parameters.AC; sm = instance.parameters.SM; first = n + source:first() - 1; if (not ac) then first = first + 1; end local name = profile:id() .. "(" .. source:name() .. "," .. n .. ")"; instance:name(name); if (nameOnly) then return; end if (SHL == "High" or SHL == "Both") then Out[1] = instance:addStream("DU", core.Line, name .. ".DU", "U", instance.parameters.clrDU, first) Out[1]:setWidth(instance.parameters.widthDU); Out[1]:setStyle(instance.parameters.styleDU); else Out[1] = instance:addInternalStream(0, 0) end if SHL == "Low" or SHL == "Both" then Out[5] = instance:addStream("DN", core.Line, name .. ".DN", "D", instance.parameters.clrDN, first) Out[5]:setWidth(instance.parameters.widthDN); Out[5]:setStyle(instance.parameters.styleDN); else Out[5] = instance:addInternalStream(0, 0) end if (sm) then Out[3] = instance:addStream("DM", core.Line, name .. ".DM", "M", instance.parameters.clrDM, first) Out[3]:setWidth(instance.parameters.widthDM); Out[3]:setStyle(instance.parameters.styleDM); else Out[3] = instance:addInternalStream(0, 0) end if SUB then Out[2] = instance:addStream("high", core.Line, name .. ".DMU", "S", instance.parameters.clrSUB, first) Out[2]:setWidth(instance.parameters.widthSUB); Out[2]:setStyle(instance.parameters.styleSUB); Out[4] = instance:addStream("low", core.Line, name .. ".DMD", "S", instance.parameters.clrSUB, first) Out[4]:setWidth(instance.parameters.widthSUB); Out[4]:setStyle(instance.parameters.styleSUB); else Out[2] = instance:addInternalStream(0, 0); Out[4] = instance:addInternalStream(0, 0); end Initialization(); end function Initialization () Size=instance.parameters.Size; SendEmail = instance.parameters.SendEmail; local i; for i = 1, Number , 1 do Label[i]=instance.parameters:getString("Label" .. i); ON[i]=instance.parameters:getBoolean("ON" .. i); end if SendEmail then Email = instance.parameters.Email; else Email = nil; end assert(not(SendEmail) or (SendEmail and Email ~= ""), "E-mail address must be specified"); PlaySound = instance.parameters.PlaySound; if PlaySound then for i = 1, Number , 1 do Up[i]=instance.parameters:getString("Up" .. i); Down[i]=instance.parameters:getString("Down" .. i); end else for i = 1, Number , 1 do Up[i]=nil; Down[i]=nil; end end for i = 1, Number , 1 do assert(not(PlaySound) or (PlaySound and Up[i] ~= "") or (PlaySound and Up[i] ~= ""), "Sound file must be chosen"); assert(not(PlaySound) or (PlaySound and Down[i] ~= "") or (PlaySound and Down[i] ~= ""), "Sound file must be chosen"); end RecurrentSound = instance.parameters.RecurrentSound; for i = 1, Number , 1 do U[i] = nil; D[i] = nil; if ON[i] then up[i] = instance:createTextOutput ("Up", "Up", "Wingdings", Size, core.H_Center, core.V_Center, instance.parameters.Up, 0); down[i] = instance:createTextOutput ("Dn", "Dn", "Wingdings", Size, core.H_Center, core.V_Center, instance.parameters.Down, 0); end end end -- calculate the value function Update(period) Calculation(period); local i; for i = 1, Number , 1 do if ON[i] then down[i]:setNoData (period); up[i]:setNoData (period); end end if period < first then return; end Activate (1, period); Activate (2, period); Activate (3, period); Activate (4, period); Activate (5, period); end function Calculation(period) if (period < first) then return; end local range; if (ac) then range = core.rangeTo(period, n); else range = core.rangeTo(period - 1, n); end if MODE=="Close" then Out[1][period] = core.max(source.close, range); Out[5][period] = core.min(source.close, range); else Out[1][period] = core.max(source.high, range); Out[5][period] = core.min(source.low, range); end Out[3][period] = (Out[1][period] + Out[5][period]) / 2; Out[2][period]= (Out[1][period] + Out[3][period]) / 2; Out[4][period]= ( Out[5][period] + Out[3][period]) / 2; end function Activate (id, period) local Shift=0; if Live~= "Live" then period=period-1; Shift=1; end if ON[id] then if source.close[period] > Out[id][period] and source.close[period-1] <= Out[id][period-1] then up[id]:set(period , Out[id][period], "\108"); D[id] = nil; if U[id]~=source:serial(period) and period == source:size()-1-Shift and not FIRST then U[id]=source:serial(period); SoundAlert(Up[id]); EmailAlert( Label[id], " Cross Over", period); if Show then Pop(Label[id], " Cross Over " ); end end elseif source.close[period] < Out[id][period] and source.close[period-1] >= Out[id][period-1] then down[id]:set(period , Out[id][period], "\108"); U[id] = nil; if D[id]~=source:serial(period) and period == source:size()-1-Shift and not FIRST then D[id]=source:serial(period); SoundAlert(Down[id]); EmailAlert( Label[id] , " Cross Under", period); if Show then Pop(Label[id], " Cross Under " ); end end end end if FIRST then FIRST=false; end end function AsyncOperationFinished (cookie, success, message) end function Pop(label , note) core.host:execute ("prompt", 1, label , " ( " .. source:instrument() .. " : " .. source:barSize() .. " ) " .. label .. " : " .. note ); end function SoundAlert(Sound) if not PlaySound then return; end terminal:alertSound(Sound, RecurrentSound); end function EmailAlert( label , Subject, period) if not SendEmail then return end local date = source:date(period); local DATA = core.dateToTable (date); local delim = "\013\010"; local Note= profile:id().. delim.. " Label : " ..label .. delim .. " Alert : " .. Subject ; local Symbol= "Instrument : " .. source:instrument() ; local TF= "Time Frame : " .. source:barSize(); local Time = " Date : " .. DATA.month.." / ".. DATA.day .." Time: ".. DATA.hour .." / ".. DATA.min .." / ".. DATA.sec; local text = Note .. delim .. Symbol .. delim .. TF .. delim .. Time; terminal:alertEmail(Email, profile:id(), text); end