Slope_Direction_Line_Bar

Author: Copyright 2018, MetaQuotes Software Corp.
Indicators Used
Moving average indicator
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Slope_Direction_Line_Bar
ÿþ//+------------------------------------------------------------------+

//|                                     Slope_Direction_Line_Bar.mq5 |

//|                        Copyright 2018, MetaQuotes Software Corp. |

//|                                                 https://mql5.com |

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

#property copyright "Copyright 2018, MetaQuotes Software Corp."

#property link      "https://mql5.com"

#property version   "1.00"

#property description "Slope Direction Line / Moving Average confirmation bars indicator"

#property indicator_separate_window

#property indicator_buffers 8

#property indicator_plots   3

//--- plot UP

#property indicator_label1  "Up"

#property indicator_type1   DRAW_ARROW

#property indicator_color1  clrGreen

#property indicator_style1  STYLE_SOLID

#property indicator_width1  1

//--- plot DN

#property indicator_label2  "Down"

#property indicator_type2   DRAW_ARROW

#property indicator_color2  clrRed

#property indicator_style2  STYLE_SOLID

#property indicator_width2  1

//--- plot NL

#property indicator_label3  "Neutral"

#property indicator_type3   DRAW_ARROW

#property indicator_color3  clrGainsboro

#property indicator_style3  STYLE_SOLID

#property indicator_width3  1

//--- defines

#define   COUNT            (3)

//--- input parameters

input uint                 InpPeriodMA          =  50;            // MA period

input ENUM_MA_METHOD       InpMethodMA          =  MODE_SMA;      // MA method

input ENUM_APPLIED_PRICE   InpAppliedPriceMA    =  PRICE_CLOSE;   // MA applied price

input uint                 InpPeriodSlope       =  50;            // Slope period

input ENUM_MA_METHOD       InpMethodSlope       =  MODE_SMA;      // Slope method

input ENUM_APPLIED_PRICE   InpAppliedPriceSlope =  PRICE_CLOSE;   // Slope applied price

//--- indicator buffers

double         BufferUP[];

double         BufferDN[];

double         BufferNL[];

double         BufferSlope[];

double         BufferMA[];

double         BufferMA1[];

double         BufferMA2[];

double         BufferVect[];

//--- global variables

string         prefix;

int            wnd;

int            UpFr;

int            DnFr;

//--- slope/MA

int            period_slope;

int            period_slope2;

int            period_sqrt;

int            period_ma;

int            period_max;

int            weight_sum;

int            handle_ma;

int            handle_ma1;

int            handle_ma2;

//--- includes

#include <MovingAverages.mqh>

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

//| Custom indicator initialization function                         |

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

int OnInit()

  {

//--- set global variables

   prefix=MQLInfoString(MQL_PROGRAM_NAME)+"_";

   wnd=ChartWindowFind();

   SizeByScale();

   Descriptions();

//--- slope/MA

   period_ma=int(InpPeriodMA<1 ? 1 : InpPeriodMA);

   period_slope=int(InpPeriodSlope<2 ? 2 : InpPeriodSlope);

   period_slope2=int(floor(period_slope/2));

   period_sqrt=int(floor(sqrt(period_slope)));

//--- indicator buffers mapping

   SetIndexBuffer(0,BufferUP,INDICATOR_DATA);

   SetIndexBuffer(1,BufferDN,INDICATOR_DATA);

   SetIndexBuffer(2,BufferNL,INDICATOR_DATA);

   SetIndexBuffer(3,BufferSlope,INDICATOR_CALCULATIONS);

   SetIndexBuffer(4,BufferMA,INDICATOR_CALCULATIONS);

   SetIndexBuffer(5,BufferMA1,INDICATOR_CALCULATIONS);

   SetIndexBuffer(6,BufferMA2,INDICATOR_CALCULATIONS);

   SetIndexBuffer(7,BufferVect,INDICATOR_CALCULATIONS);

//--- setting a code from the Wingdings charset as the property of PLOT_ARROW

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

      PlotIndexSetInteger(i,PLOT_ARROW,167);

//--- setting indicator parameters

   IndicatorSetString(INDICATOR_SHORTNAME,"Slope/MA bars ("+(string)period_slope+","+(string)period_ma+")");

   IndicatorSetInteger(INDICATOR_DIGITS,1);

   IndicatorSetInteger(INDICATOR_HEIGHT,60);

   IndicatorSetDouble(INDICATOR_MINIMUM,0);

   IndicatorSetDouble(INDICATOR_MAXIMUM,1);

//--- setting buffer arrays as timeseries

   ArraySetAsSeries(BufferUP,true);

   ArraySetAsSeries(BufferDN,true);

   ArraySetAsSeries(BufferNL,true);

   ArraySetAsSeries(BufferSlope,true);

   ArraySetAsSeries(BufferMA,true);

   ArraySetAsSeries(BufferMA1,true);

   ArraySetAsSeries(BufferMA2,true);

   ArraySetAsSeries(BufferVect,true);

//--- create handles

   ResetLastError();

   handle_ma=iMA(NULL,PERIOD_CURRENT,period_ma,0,InpMethodMA,InpAppliedPriceMA);

   if(handle_ma==INVALID_HANDLE)

     {

      Print("The iMA(",(string)period_ma,") object was not created: Error ",GetLastError());

      return INIT_FAILED;

     }

   handle_ma1=iMA(NULL,PERIOD_CURRENT,period_slope,0,InpMethodSlope,InpAppliedPriceSlope);

   if(handle_ma1==INVALID_HANDLE)

     {

      Print("The iMA(",(string)period_slope,") object was not created: Error ",GetLastError());

      return INIT_FAILED;

     }

   handle_ma2=iMA(NULL,PERIOD_CURRENT,period_slope2,0,InpMethodSlope,InpAppliedPriceSlope);

   if(handle_ma2==INVALID_HANDLE)

     {

      Print("The iMA(",(string)period_slope2,") object was not created: Error ",GetLastError());

      return INIT_FAILED;

     }

//---

   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[])

  {

//--- #AB0=>2:0 <0AA82>2 1CD5@>2 :0: B09<A5@89

   ArraySetAsSeries(open,true);

   ArraySetAsSeries(high,true);

   ArraySetAsSeries(low,true);

   ArraySetAsSeries(close,true);

//--- @>25@:0 :>;8G5AB20 4>ABC?=KE 10@>2

   if(rates_total<fmax(period_slope,4)) return 0;

//--- @>25@:0 8 @0AGQB :>;8G5AB20 ?@>AG8BK205<KE 10@>2

   int limit=rates_total-prev_calculated;

   if(limit>1)

     {

      limit=rates_total-2;

      ArrayInitialize(BufferUP,EMPTY_VALUE);

      ArrayInitialize(BufferDN,EMPTY_VALUE);

      ArrayInitialize(BufferNL,EMPTY_VALUE);

      ArrayInitialize(BufferSlope,0);

      ArrayInitialize(BufferMA,0);

      ArrayInitialize(BufferMA1,0);

      ArrayInitialize(BufferMA2,0);

      ArrayInitialize(BufferVect,0);

     }

//--- >43>B>2:0 40==KE

   int count=(limit>1 ? rates_total : 1),copied=0;

   copied=CopyBuffer(handle_ma,0,0,count,BufferMA);

   if(copied!=count) return 0;

   copied=CopyBuffer(handle_ma1,0,0,count,BufferMA1);

   if(copied!=count) return 0;

   copied=CopyBuffer(handle_ma2,0,0,count,BufferMA2);

   if(copied!=count) return 0;

   for(int i=limit; i>=0 && !IsStopped(); i--)

      BufferVect[i]=2.0*BufferMA2[i]-BufferMA1[i];

     

//---  0AGQB 8=48:0B>@0

   switch(InpMethodSlope)

     {

      case MODE_EMA  :  if(ExponentialMAOnBuffer(rates_total,prev_calculated,period_slope,period_sqrt,BufferVect,BufferSlope)==0) return 0;

      case MODE_SMMA :  if(SmoothedMAOnBuffer(rates_total,prev_calculated,period_slope,period_sqrt,BufferVect,BufferSlope)==0) return 0;

      case MODE_LWMA :  if(LinearWeightedMAOnBuffer(rates_total,prev_calculated,period_slope,period_sqrt,BufferVect,BufferSlope,weight_sum)==0) return 0;

      //---MODE_SMA

      default        :  if(SimpleMAOnBuffer(rates_total,prev_calculated,period_slope,period_sqrt,BufferVect,BufferSlope)==0) return 0;

     }

   for(int i=limit; i>=0 && !IsStopped(); i--)

     {

      BufferDN[i]=BufferUP[i]=EMPTY_VALUE;

      BufferNL[i]=0.5;

      if(BufferSlope[i]>BufferSlope[i+1])

        {

         if(BufferMA[i]>BufferMA[i+1])

           {

            BufferUP[i]=0.5;

            BufferDN[i]=BufferNL[i]=EMPTY_VALUE;

           }

        }

      else if(BufferSlope[i]<BufferSlope[i+1])

        {

         if(BufferMA[i]<BufferMA[i+1])

           {

            BufferDN[i]=0.5;

            BufferUP[i]=BufferNL[i]=EMPTY_VALUE;

           }

        }

      else

        {

         BufferNL[i]=0.5;

         BufferUP[i]=BufferDN[i]=EMPTY_VALUE;

        }

     }

   

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

   return(rates_total);

  }

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

//| ChartEvent function                                              |

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

void OnChartEvent(const int id,

                  const long &lparam,

                  const double &dparam,

                  const string &sparam)

  {

   if(id==CHARTEVENT_CHART_CHANGE)

     {

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

         PlotIndexSetInteger(i,PLOT_LINE_WIDTH,SizeByScale());

      Descriptions();

      ChartRedraw();

     }

  }

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

//| >72@0I05B @07<5@, A>>B25BAB2CNI89 <0AHB01C                      |

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

uchar SizeByScale(void)

  {

   uchar scale=(uchar)ChartGetInteger(0,CHART_SCALE);

   uchar size=(scale<3 ? 1 : scale==3 ? 2 : scale==4 ? 5 : 8);

   return size;

  }

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

//| ?8A0=85                                                         |

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

void Descriptions(void)

  {

   int x=4;

   int y=1;

   int arr_colors[]={indicator_color1,indicator_color2,indicator_color3};

   string arr_texts[]={"Up direction","Down direction","Neutral"};

   string arr_names[COUNT];

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

     {

      arr_names[i]=prefix+"label"+(string)i;

      arr_colors[i]=PlotIndexGetInteger(i,PLOT_LINE_COLOR);

      x=(i==0 ? x : i==1 ? 110 : 230);

      Label(arr_names[i],x,y,CharToString(167),16,arr_colors[i],"Wingdings");

      Label(arr_names[i]+"_txt",x+10,y+5,arr_texts[i],10,clrGray,"Calibri");

     }

  }

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

//| K2>48B B5:AB>2CN <5B:C                                          |

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

void Label(const string name,const int x,const int y,const string text,const int size,const color clr,const string font)

  {

   if(ObjectFind(0,name)!=wnd)

      ObjectCreate(0,name,OBJ_LABEL,wnd,0,0,0,0);

   ObjectSetInteger(0,name,OBJPROP_SELECTABLE,false);

   ObjectSetInteger(0,name,OBJPROP_HIDDEN,true);

   ObjectSetInteger(0,name,OBJPROP_XDISTANCE,x);

   ObjectSetInteger(0,name,OBJPROP_YDISTANCE,y);

   ObjectSetInteger(0,name,OBJPROP_CORNER,CORNER_LEFT_LOWER);

   ObjectSetInteger(0,name,OBJPROP_ANCHOR,ANCHOR_LEFT_LOWER);

   ObjectSetInteger(0,name,OBJPROP_FONTSIZE,size);

   ObjectSetInteger(0,name,OBJPROP_COLOR,clr);

//---

   ObjectSetString(0,name,OBJPROP_FONT,font);

   ObjectSetString(0,name,OBJPROP_TEXT,text);

   ObjectSetString(0,name,OBJPROP_TOOLTIP,"\n");

  }

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

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