DailyVerticalLines

ÿþ//+------------------------------------------------------------------+

//|                                           DailyVerticalLines.mq5 |

//|                                        Copyright © 2018, Amr Ali |

//|                             https://www.mql5.com/en/users/amrali |

//+------------------------------------------------------------------+

#property copyright "Copyright © 2018, Amr Ali"

#property link      "https://www.mql5.com/en/users/amrali"

#property version   "1.00"

#property description "Draw daily vertical lines plus the day of week labels on the chart."

#property indicator_chart_window

#property indicator_buffers 0

#property indicator_plots   0



//--- input parameters

input int             InpMaxDays     =  20;                // Maximum daily lines to show

input ENUM_LINE_STYLE InpVLineStyle  =  STYLE_DASHDOTDOT;  // Daily vertical lines style

input color           InpVLineColor  =  clrYellow;         // Daily vertical lines color



//--- global variables

string obj_name_prefix = "5days_";

//+------------------------------------------------------------------+

//|                                                                  |

//+------------------------------------------------------------------+

int OnInit()

  {

   return (INIT_SUCCEEDED);

  }

//+------------------------------------------------------------------+

//|                                                                  |

//+------------------------------------------------------------------+

void OnDeinit(const int reason)

  {

   ObjectsDeleteAll(0, obj_name_prefix);

  }

//+------------------------------------------------------------------+

//|                                                                  |

//+------------------------------------------------------------------+

int OnCalculate(const int rates_total,

                const int prev_calculated,

                const datetime &time[],

                const double &open[],

                const double &high[],

                const double &low[],

                const double &close[],

                const long &tick_volume[],

                const long &volume[],

                const int &spread[])

  {

   ENUM_TIMEFRAMES P = Period();

   if(P > PERIOD_D1)

      return(0);



//--- define indexing direction as timeseries

   ArraySetAsSeries(time, true);

   ArraySetAsSeries(low, true);



//--- if timeseries is loaded or a new bar is added

   if(rates_total > prev_calculated)

     {

      int cnt = MathMin(rates_total, PeriodSeconds(PERIOD_D1)/PeriodSeconds(P)*InpMaxDays);



      for(int i=0; i < cnt; i++)

        {

         if(TimeDayOfWeek(time[i]) != TimeDayOfWeek(time[i+1]))

           {

            string wkday = EnumToString((ENUM_DAY_OF_WEEK)TimeDayOfWeek(time[i]));

            string name = obj_name_prefix + wkday + "_" + TimeToString(time[i]);



            VLineCreate(name,time[i],InpVLineColor,InpVLineStyle);

            TextCreate(name+"_lbl",wkday,time[i],low[i]-50*_Point,InpVLineColor);

           }

        }

     }



//--- return value of prev_calculated for next call

   return (rates_total);

  }

//+------------------------------------------------------------------+

//| Create the vertical line                                         |

//+------------------------------------------------------------------+

void VLineCreate(string name, datetime time, color clr, ENUM_LINE_STYLE style=STYLE_SOLID, int width=1)

  {

   ObjectCreate(0,name,OBJ_VLINE,0,time,0);

   ObjectSetInteger(0,name,OBJPROP_COLOR,clr);

   ObjectSetInteger(0,name,OBJPROP_STYLE,style);

   ObjectSetInteger(0,name,OBJPROP_WIDTH,width);

   ObjectSetInteger(0,name,OBJPROP_BACK,false);

   ObjectSetInteger(0,name,OBJPROP_SELECTABLE,false);

   ObjectSetInteger(0,name,OBJPROP_SELECTED,false);

  }

//+------------------------------------------------------------------+

//| Creating Text object                                             |

//+------------------------------------------------------------------+

void TextCreate(string name, string text, datetime time, double price, color clr=clrWhiteSmoke)

  {

   ObjectCreate(0,name,OBJ_TEXT,0,time,price);

   ObjectSetString(0,name,OBJPROP_TEXT,text);

   ObjectSetInteger(0,name,OBJPROP_COLOR,clr);

   ObjectSetInteger(0,name,OBJPROP_ANCHOR,ANCHOR_LEFT);

   ObjectSetDouble(0,name,OBJPROP_ANGLE,0.00);

   ObjectSetString(0,name,OBJPROP_FONT,"Lucida Console");

   ObjectSetInteger(0,name,OBJPROP_FONTSIZE,8);

   ObjectSetInteger(0,name,OBJPROP_BACK,true);

   ObjectSetInteger(0,name,OBJPROP_SELECTABLE,false);

   ObjectSetInteger(0,name,OBJPROP_SELECTED,false);

  }

//+------------------------------------------------------------------+

//| Day of the week as integer (0-Sunday, 1-Monday, ... ,6-Saturday) |

//+------------------------------------------------------------------+

int TimeDayOfWeek(datetime t)

  {

   MqlDateTime st;

   TimeToStruct(t, st);

   return(st.day_of_week);

  }

//+------------------------------------------------------------------+