Triangle Day

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

//|                                                 Triangle Day.mq5 |

//|                              Copyright © 2022, Vladimir Karputov |

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

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

#property copyright "Copyright © 2022, Vladimir Karputov"

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

#property version   "1.000"

#property indicator_chart_window

#property indicator_buffers 0

#property indicator_plots   0

//--- input parameters

//---

bool     m_init_error            = false;          // error on InInit

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

//| Custom indicator initialization function                         |

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

int OnInit()

  {

   if(Period()>=PERIOD_D1)

     {

      m_init_error=true;

      return(INIT_SUCCEEDED);

     }

//---

   TriangleCreate(ChartID(),"Left",0,0,0,0,0,0,0,C'200,200,255');

   TriangleCreate(ChartID(),"Right",0,0,0,0,0,0,0,C'255,200,200');

//---

   return(INIT_SUCCEEDED);

  }

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

//| Custom indicator iteration function                              |

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

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[])

  {

//---

   if(m_init_error)

      return(0);

//---

   double   price_day_open    = 0.0;

   double   price_day_high    = DBL_MIN;

   double   price_day_low     = DBL_MAX;

   double   price_day_close   = 0.0;

   datetime time_day_open     = 0;

   datetime time_day_high     = 0;

   datetime time_day_low      = 0;

   datetime time_day_close    = 0;

//---

   MqlRates rates_d1[];

   ArraySetAsSeries(rates_d1,true);

   int start_pos=0,count=2;

   if(CopyRates(Symbol(),PERIOD_D1,start_pos,count,rates_d1)!=count)

      return(0);

//---

   price_day_open = rates_d1[0].open;

   time_day_open  = rates_d1[0].time;

   price_day_close= close[rates_total-1];

   time_day_close = time[rates_total-1];

//---

   for(int i=rates_total-1; i>=0; i--)

     {

      if(time[i]<rates_d1[0].time)

         break;

      if(high[i]>price_day_high)

        {

         price_day_high=high[i];

         time_day_high=time[i];

        }

      if(low[i]<price_day_low)

        {

         price_day_low=low[i];

         time_day_low=time[i];

        }

     }

//---

   TrianglePointChange(ChartID(),"Left",0,time_day_open,price_day_open);

   TrianglePointChange(ChartID(),"Left",1,time_day_high,price_day_high);

   TrianglePointChange(ChartID(),"Left",2,time_day_low,price_day_low);

//---

   TrianglePointChange(ChartID(),"Right",0,time_day_close,price_day_close);

   TrianglePointChange(ChartID(),"Right",1,time_day_high,price_day_high);

   TrianglePointChange(ChartID(),"Right",2,time_day_low,price_day_low);

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

   return(rates_total);

  }

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

//| Create triangle by the given coordinates                         |

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

bool TriangleCreate(const long            chart_ID=0,        // chart's ID

                    const string          name="Triangle",   // triangle name

                    const int             sub_window=0,      // subwindow index

                    datetime              time1=0,           // first point time

                    double                price1=0,          // first point price

                    datetime              time2=0,           // second point time

                    double                price2=0,          // second point price

                    datetime              time3=0,           // third point time

                    double                price3=0,          // third point price

                    const color           clr=clrRed,        // triangle color

                    const ENUM_LINE_STYLE style=STYLE_SOLID, // style of triangle lines

                    const int             width=1,           // width of triangle lines

                    const bool            fill=true,         // filling triangle with color

                    const bool            back=false,        // in the background

                    const bool            selection=false,   // highlight to move

                    const bool            hidden=true,       // hidden in the object list

                    const long            z_order=0)         // priority for mouse click

  {

//--- set anchor points' coordinates if they are not set

   ChangeTriangleEmptyPoints(time1,price1,time2,price2,time3,price3);

//--- reset the error value

   ResetLastError();

//--- create triangle by the given coordinates

   if(!ObjectCreate(chart_ID,name,OBJ_TRIANGLE,sub_window,time1,price1,time2,price2,time3,price3))

     {

      Print(__FUNCTION__,

            ": failed to create a triangle! Error code = ",GetLastError());

      return(false);

     }

//--- set triangle color

   ObjectSetInteger(chart_ID,name,OBJPROP_COLOR,clr);

//--- set style of triangle lines

   ObjectSetInteger(chart_ID,name,OBJPROP_STYLE,style);

//--- set width of triangle lines

   ObjectSetInteger(chart_ID,name,OBJPROP_WIDTH,width);

//--- enable (true) or disable (false) the mode of filling the triangle

   ObjectSetInteger(chart_ID,name,OBJPROP_FILL,fill);

//--- display in the foreground (false) or background (true)

   ObjectSetInteger(chart_ID,name,OBJPROP_BACK,back);

//--- enable (true) or disable (false) the mode of highlighting the triangle for moving

//--- when creating a graphical object using ObjectCreate function, the object cannot be

//--- highlighted and moved by default. Inside this method, selection parameter

//--- is true by default making it possible to highlight and move the object

   ObjectSetInteger(chart_ID,name,OBJPROP_SELECTABLE,selection);

   ObjectSetInteger(chart_ID,name,OBJPROP_SELECTED,selection);

//--- hide (true) or display (false) graphical object name in the object list

   ObjectSetInteger(chart_ID,name,OBJPROP_HIDDEN,hidden);

//--- set the priority for receiving the event of a mouse click in the chart

   ObjectSetInteger(chart_ID,name,OBJPROP_ZORDER,z_order);

//--- successful execution

   return(true);

  }

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

//| Move the triangle anchor point                                   |

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

bool TrianglePointChange(const long   chart_ID=0,      // chart's ID

                         const string name="Triangle", // triangle name

                         const int    point_index=0,   // anchor point index

                         datetime     time=0,          // anchor point time coordinate

                         double       price=0)         // anchor point price coordinate

  {

//--- if point position is not set, move it to the current bar having Bid price

   if(!time)

      time=TimeCurrent();

   if(!price)

      price=SymbolInfoDouble(Symbol(),SYMBOL_BID);

//--- reset the error value

   ResetLastError();

//--- move the anchor point

   if(!ObjectMove(chart_ID,name,point_index,time,price))

     {

      Print(__FUNCTION__,

            ": failed to move the anchor point! Error code = ",GetLastError());

      return(false);

     }

//--- successful execution

   return(true);

  }

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

//| Check the values of triangle's anchor points and set default     |

//| values for empty ones                                            |

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

void ChangeTriangleEmptyPoints(datetime &time1,double &price1,

                               datetime &time2,double &price2,

                               datetime &time3,double &price3)

  {

//--- if the first point's time is not set, it will be on the current bar

   if(!time1)

      time1=TimeCurrent();

//--- if the first point's price is not set, it will have Bid value

   if(!price1)

      price1=SymbolInfoDouble(Symbol(),SYMBOL_BID);

//--- if the second point's time is not set, it is located 9 bars left from the second one

   if(!time2)

     {

      //--- array for receiving the open time of the last 10 bars

      datetime temp[10];

      CopyTime(Symbol(),Period(),time1,10,temp);

      //--- set the second point 9 bars left from the first one

      time2=temp[0];

     }

//--- if the second point's price is not set, move it 300 points lower than the first one

   if(!price2)

      price2=price1-300*SymbolInfoDouble(Symbol(),SYMBOL_POINT);

//--- if the third point's time is not set, it coincides with the second point's date

   if(!time3)

      time3=time2;

//--- if the third point's price is not set, it is equal to the first point's one

   if(!price3)

      price3=price1;

  }

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

//| Indicator deinitialization function                              |

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

void OnDeinit(const int reason)

  {

   ObjectDelete(ChartID(),"Left");

   ObjectDelete(ChartID(),"Right");

  }

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