-- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=28&t=61403&start=40 --+------------------------------------------------------------------+ --| 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 | --| BitCoin : 15VCJTLaz12Amr7adHSBtL9v8XomURo9RF | --| BitCoin Cash: 1BEtS465S3Su438Kc58h2sqvVvHK9Mijtg | --| Ethereum : 0x8C110cD61538fb6d7A2B47858F0c0AaBd663068D | --| LiteCoin : LLU8PSY2vsq7B9kRELLZQcKf5nJQrdeqwD | --+------------------------------------------------------------------+ function Init() indicator:name("CSV Lines Helper Tool"); indicator:description(""); indicator:requiredSource(core.Bar); indicator:type(core.Indicator); indicator.parameters:addGroup("Calculation"); indicator.parameters:addFile("input_file", "CSV File", "", ""); indicator.parameters:addString("input_file_separator", "CSV File Separator", "", ","); indicator.parameters:addColor("color", "Line Color", "", core.rgb(0, 255, 0)); indicator.parameters:addInteger("width", "Line Width", "", 1, 1, 5); indicator.parameters:addInteger("style", "Line Style", "", core.LINE_SOLID); indicator.parameters:setFlag("style", core.FLAG_LINE_STYLE); indicator.parameters:addColor("color_extended", "Extended Line Color", "", core.rgb(0, 255, 0)); indicator.parameters:addInteger("width_extended", "Extended Line Width", "", 1, 1, 5); indicator.parameters:addInteger("style_extended", "Extended Line Style", "", core.LINE_DASH); indicator.parameters:setFlag("style_extended", core.FLAG_LINE_STYLE); end local first; local source; local Source; local loading; local lines; local color; local width; local style; local color_extended; local width_extended; local style_extended; function Prepare(nameOnly) local name = profile:id() .. "(" .. instance:name() .. ")"; instance:name(name); if (nameOnly) then return; end source = instance.source; first = source:first(); lines = parseFile(instance.parameters.input_file, instance.parameters.input_file_separator); color = instance.parameters.color; width = instance.parameters.width; style = instance.parameters.style; color_extended = instance.parameters.color_extended; width_extended = instance.parameters.width_extended; style_extended = instance.parameters.style_extended; instance:ownerDrawn(true); end function todate(str) -- dd/mm/yyyy hh:mm local _day, _month, _year, _hour, _minute = string.match(str, '(%d+)/(%d+)/(%d+) (%d+):(%d+)'); local date = {year = _year, month = _month, day = _day, hour = _hour, min = _minute, sec = 0}; return core.tableToDate(date); end function parseFile(file, separator) local f = io.open(file, "r"); if (f == nil) then return {}; end f:close(); local new_lines = {}; for line in io.lines(file) do local values, values_count = core.parseCsv(line, separator); if values_count >= 4 then local line = {}; line.rate_1 = tonumber(values[1]); line.rate_2 = tonumber(values[3]); line.date_1 = todate(values[0]); line.date_2 = todate(values[2]); new_lines[#new_lines + 1] = line; else core.host:trace("Impossible to parse line: " .. line); end end return new_lines; end function Update(period) end local main_pen = 1; local extended_pen = 2; local init = false; function Draw(stage, context) if stage ~= 2 or loading then return; end if not init then context:createPen(main_pen, context:convertPenStyle(style), width, color); context:createPen(extended_pen, context:convertPenStyle(style_extended), width_extended, color_extended); init = true; end local y = {}; for key, value in pairs(lines) do local index_1 = core.findDate(source, value.date_1, false); local index_2 = core.findDate(source, value.date_2, false); x_1 = context:positionOfBar(index_1); x_2 = context:positionOfBar(index_2); visible, y_1 = context:pointOfPrice(value.rate_1); visible, y_2 = context:pointOfPrice(value.rate_2); context:drawLine(main_pen, x_1, y_1, x_2, y_2); local a = (y_2 - y_1) / (x_2 - x_1); local b = y_1 - a * x_1; if (x_1 > x_2) then context:drawLine(extended_pen, context:left(), context:left() * a + b, x_2, y_2); else context:drawLine(extended_pen, context:right(), context:right() * a + b, x_2, y_2); end end end