Added time line indicator
This commit is contained in:
9nix6
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//+------------------------------------------------------------------+
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//| TimeLine.mq5 |
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//| Copyright 2018, AZ-iNVEST |
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//| http://www.az-invest.eu |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2018, AZ-iNVEST"
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#property link "http://www.az-invest.eu"
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#property version "1.00"
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#property indicator_separate_window
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#property indicator_plots 0
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#include <AZ-INVEST/SDK/RangeBarIndicator.mqh>
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RangeBarIndicator customChartIndicator;
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#define PREFIX_SEED "6D4E6"
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static long __chartId = ChartID();
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static int __subWinId = ChartWindowFind();
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input color InpTextColor = clrWhiteSmoke; // Font color
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input int InpFontSize = 9; // Font size
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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//--- indicator buffers mapping
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IndicatorSetString(INDICATOR_SHORTNAME,"\n");
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IndicatorSetDouble(INDICATOR_MINIMUM,0);
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IndicatorSetDouble(INDICATOR_MAXIMUM,9);
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IndicatorSetInteger(INDICATOR_HEIGHT,28);
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IndicatorSetInteger(INDICATOR_DIGITS,0);
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//---
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customChartIndicator.SetGetTimeFlag();
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return(INIT_SUCCEEDED);
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}
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void OnDeinit(const int r)
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{
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DeleteDateTimeMarkers();
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}
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//+------------------------------------------------------------------+
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//| Custom indicator iteration function |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const datetime &time[],
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const double &open[],
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const double &high[],
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const double &low[],
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const double &close[],
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const long &tick_volume[],
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const long &volume[],
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const int &spread[])
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{
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if(!customChartIndicator.OnCalculate(rates_total,prev_calculated,time))
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return(0);
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int start = customChartIndicator.GetPrevCalculated() - 1;
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//--- correct position
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if(start<0)
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start=0;
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if((start == 0) || customChartIndicator.IsNewBar)
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{
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DeleteDateTimeMarkers();
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DrawTimeLine(0,rates_total,time);
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}
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//--- return value of prev_calculated for next call
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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void DrawTimeLine(const int nPosition, const int nRatesCount, const datetime &canvasTime[])
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{
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datetime curBarTime = 0;
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bool _start = false;
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int c = 0;
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for(int i=nPosition;i<nRatesCount;i++)
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{
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curBarTime = (datetime)customChartIndicator.Time[i];
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if(curBarTime == 0)
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continue;
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else
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_start = true;
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if(c%8 == 0)
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DrawDateTimeMarker(i,curBarTime,canvasTime[i]);
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if(_start)
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c++;
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}
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ChartRedraw();
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}
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bool DrawDateTimeMarker(const int ix, const datetime timeStamp, const datetime canvasTime)
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{
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if(timeStamp == 0)
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return false;
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TextCreate(__chartId,PREFIX_SEED+(string)timeStamp,__subWinId,canvasTime,9,NormalizeTime(timeStamp),"Calibri",InpFontSize,InpTextColor);
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return true;
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}
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void DeleteDateTimeMarkers()
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{
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int c = 0;
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int count = ObjectsTotal(__chartId,__subWinId,OBJ_TEXT);
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string list[];
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ArrayResize(list,count,0);
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for(int i = 0; i < count; i++)
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{
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string objName = ObjectName(__chartId,i);
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if(StringFind(objName,PREFIX_SEED) == 0)
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{
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list[c] = objName;
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c++;
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}
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}
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if(c == 0)
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return;
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ArrayResize(list,c);
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for(int i = c-1; i >= 0; i--)
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ObjectDelete(__chartId,list[i]);
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ArrayFree(list);
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}
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string NormalizeTime(datetime _dt)
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{
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static string __months[12] = {"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
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MqlDateTime dt;
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TimeToStruct(_dt,dt);
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string minute = (dt.min<10) ? ("0"+(string)dt.min) : (string)dt.min;
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string hour = (dt.hour<10) ? ("0"+(string)dt.hour) : (string)dt.hour;
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return ( "'"+(string)dt.day+" "+__months[dt.mon-1]+" "+hour+":"+minute );
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}
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//
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// GUI wrapper function
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// https://www.mql5.com/en/docs/constants/objectconstants/enum_object/obj_text
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//
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bool TextCreate(const long chart_ID=0, // chart's ID
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const string name="Text", // object name
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const int sub_window=0, // subwindow index
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datetime time=0, // anchor point time
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double price=0, // anchor point price
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const string text="Text", // the text itself
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const string font="Calibri", // font
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const int font_size=9, // font size
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const color clr=clrWhiteSmoke, // color
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const double angle=0.0, // text slope
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const ENUM_ANCHOR_POINT anchor=ANCHOR_LEFT_UPPER, // anchor type
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const bool back=false, // in the background
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const bool selection=false, // highlight to move
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const bool hidden=true, // hidden in the object list
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const long z_order=0) // priority for mouse click
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{
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//--- reset the error value
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ResetLastError();
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//--- create Text object
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if(!ObjectCreate(chart_ID,name,OBJ_TEXT,sub_window,time,price))
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{
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Print(__FUNCTION__,": failed to create \"Text\" object! Error code = ",GetLastError());
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return(false);
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}
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//--- set the text
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ObjectSetString(chart_ID,name,OBJPROP_TEXT,text);
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//--- set text font
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ObjectSetString(chart_ID,name,OBJPROP_FONT,font);
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//--- set font size
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ObjectSetInteger(chart_ID,name,OBJPROP_FONTSIZE,font_size);
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//--- set the slope angle of the text
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ObjectSetDouble(chart_ID,name,OBJPROP_ANGLE,angle);
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//--- set anchor type
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ObjectSetInteger(chart_ID,name,OBJPROP_ANCHOR,anchor);
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//--- set color
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ObjectSetInteger(chart_ID,name,OBJPROP_COLOR,clr);
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//--- display in the foreground (false) or background (true)
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ObjectSetInteger(chart_ID,name,OBJPROP_BACK,back);
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//--- enable (true) or disable (false) the mode of moving the object by mouse
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ObjectSetInteger(chart_ID,name,OBJPROP_SELECTABLE,selection);
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ObjectSetInteger(chart_ID,name,OBJPROP_SELECTED,selection);
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//--- hide (true) or display (false) graphical object name in the object list
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ObjectSetInteger(chart_ID,name,OBJPROP_HIDDEN,hidden);
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//--- set the priority for receiving the event of a mouse click in the chart
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ObjectSetInteger(chart_ID,name,OBJPROP_ZORDER,z_order);
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//--- switch off tooltips
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ObjectSetString(chart_ID,name,OBJPROP_TOOLTIP,"\n");
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//--- successful execution
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return(true);
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}
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