TrendMFI_v1

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

//|                                                  TrendMFI_v1.mq5 |

//|                           Copyright © 2005, TrendLaboratory Ltd. |

//|                                       E-mail: igorad2004@list.ru |

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

#property copyright "Copyright © 2005, TrendLaboratory Ltd."

#property link      "E-mail: igorad2004@list.ru"

//---- =><5@ 25@A88 8=48:0B>@0

#property version   "1.00"

//---- >?8A0=85 8=48:0B>@0

#property description ""

//---- >B@8A>2:0 8=48:0B>@0 2 >B45;L=>< >:=5

#property indicator_separate_window  

//---- 4;O @0AGQB0 8 >B@8A>2:8 8=48:0B>@0 8A?>;L7>20=> B@8 1CD5@0

#property indicator_buffers 3

//---- 8A?>;L7>20=> B@8 3@0D8G5A:8E ?>AB@>5=8O

#property indicator_plots   3

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

//| 0@0<5B@K >B@8A>2:8 MFI                      |

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

//---- >B@8A>2:0 8=48:0B>@0 1 2 2845 ;8=88

#property indicator_type1   DRAW_LINE

//---- 2 :0G5AB25 F25B0 ;8=88 8=48:0B>@0 8A?>;L7>20= >@0=652K9 F25B

#property indicator_color1  clrOrange

//---- ;8=8O 8=48:0B>@0 1 - =5?@5@K2=0O :@820O

#property indicator_style1  STYLE_SOLID

//---- B>;I8=0 ;8=88 8=48:0B>@0 1 @02=0 2

#property indicator_width1  2

//---- >B>1@065=85 <5B:8 8=48:0B>@0

#property indicator_label1  "MFI"

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

//| 0@0<5B@K >B@8A>2:8 MAMFI fast               |

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

//---- >B@8A>2:0 8=48:0B>@0 2 2 2845 ;8=88

#property indicator_type2   DRAW_LINE

//---- 2 :0G5AB25 F25B0 ;8=88 8=48:0B>@0 8A?>;L7>20= @>7>2K9 F25B

#property indicator_color2  clrMagenta

//---- ;8=8O 8=48:0B>@0 2 - =5?@5@K2=0O :@820O

#property indicator_style2  STYLE_SOLID

//---- B>;I8=0 ;8=88 8=48:0B>@0 2 @02=0 3

#property indicator_width2  3

//---- >B>1@065=85 <5B:8 8=48:0B>@0

#property indicator_label2  "MAMFI fast"

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

//| 0@0<5B@K >B@8A>2:8 MAMFI slow               |

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

//---- >B@8A>2:0 8=48:0B>@0 3 2 2845 ;8=88

#property indicator_type3   DRAW_LINE

//---- 2 :0G5AB25 F25B0 <54256L59 ;8=88 8=48:0B>@0 8A?>;L7>20= 3>;C1>9 F25B

#property indicator_color3  clrDodgerBlue

//---- ;8=8O 8=48:0B>@0 3 - =5?@5@K2=0O :@820O

#property indicator_style3  STYLE_SOLID

//---- B>;I8=0 ;8=88 8=48:0B>@0 3 @02=0 4

#property indicator_width3  4

//---- >B>1@065=85 <54256L59 <5B:8 8=48:0B>@0

#property indicator_label3  "MAMFI slow"

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

//| 0@0<5B@K >B>1@065=8O 3>@87>=B0;L=KE C@>2=59 |

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

#property indicator_level1 70.0

#property indicator_level2 50.0

#property indicator_level3 30.0

#property indicator_levelcolor clrGray

#property indicator_levelstyle STYLE_DASHDOTDOT

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

//|  >1JO2;5=85 :>=AB0=B                         |

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

#define RESET 0 // :>=AB0=B0 4;O 2>72@0B0 B5@<8=0;C :><0=4K =0 ?5@5AGQB 8=48:0B>@0

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

//| E>4=K5 ?0@0<5B@K 8=48:0B>@0                 |

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

input uint                 MFIPeriod=14;

input ENUM_APPLIED_VOLUME VolumeType=VOLUME_TICK;  // >1JQ< 

input uint                 FastMAPeriod=9;

input  ENUM_MA_METHOD      FastMAType=MODE_EMA;

input uint                 SlowMAPeriod=45;

input  ENUM_MA_METHOD      SlowMAType=MODE_EMA;

input int                  Shift=0; // A4283 8=48:0B>@0 ?> 3>@87>=B0;8 2 10@0E

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

//---- >1JO2;5=85 48=0<8G5A:8E <0AA82>2, :>B>@K5 1C4CB 2 

// 40;L=59H5< 8A?>;L7>20=K 2 :0G5AB25 8=48:0B>@=KE 1CD5@>2

double Ind1Buffer[];

double Ind2Buffer[];

double Ind3Buffer[];

//---- 1JO2;5=85 F5;KE ?5@5<5==KE =0G0;0 >BAGQB0 40==KE

int min_rates_total;

//---- 1JO2;5=85 F5;KE ?5@5<5==KE 4;O E5=4;>2 8=48:0B>@>2

int MFI_Handle,FsMA_Handle,SlMA_Handle;

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

//| Custom indicator initialization function                         |

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

int OnInit()

  {

//---- =8F80;870F8O ?5@5<5==KE =0G0;0 >BAGQB0 40==KE

   min_rates_total=int(MathMax(FastMAPeriod,SlowMAPeriod)+MFIPeriod);



//---- ?>;CG5=85 E5=4;0 8=48:0B>@0 iMFI

   MFI_Handle=iMFI(NULL,0,MFIPeriod,VolumeType);

   if(MFI_Handle==INVALID_HANDLE)

     {

      Print(" 5 C40;>AL ?>;CG8BL E5=4; 8=48:0B>@0 iMFI");

      return(INIT_FAILED);

     }

//---- ?>;CG5=85 E5=4;0 8=48:0B>@0 Fast iMA

   FsMA_Handle=iMA(_Symbol,PERIOD_CURRENT,FastMAPeriod,0,FastMAType,MFI_Handle);

   if(FsMA_Handle==INVALID_HANDLE)

     {

      Print(" 5 C40;>AL ?>;CG8BL E5=4; 8=48:0B>@0 Fast iMA");

      return(INIT_FAILED);

     }

//---- ?>;CG5=85 E5=4;0 8=48:0B>@0 Slow iMA

   SlMA_Handle=iMA(_Symbol,PERIOD_CURRENT,SlowMAPeriod,0,SlowMAType,MFI_Handle);

   if(SlMA_Handle==INVALID_HANDLE)

     {

      Print(" 5 C40;>AL ?>;CG8BL E5=4; 8=48:0B>@0 Slow iMA");

      return(INIT_FAILED);

     }

//---- ?@52@0I5=85 48=0<8G5A:>3> <0AA820 2 8=48:0B>@=K9 1CD5@

   SetIndexBuffer(0,Ind1Buffer,INDICATOR_DATA);

//---- >ACI5AB2;5=85 A42830 8=48:0B>@0 1 ?> 3>@87>=B0;8 =0 Shift

   PlotIndexSetInteger(0,PLOT_SHIFT,Shift);

//---- >ACI5AB2;5=85 A42830 =0G0;0 >BAGQB0 >B@8A>2:8 8=48:0B>@0 1 =0 min_rates_total

   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,min_rates_total);

//---- CAB0=>2:0 7=0G5=89 8=48:0B>@0, :>B>@K5 =5 1C4CB 2848<K =0 3@0D8:5

   PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,EMPTY_VALUE);

//---- 8=45:A0F8O M;5<5=B>2 2 1CD5@5 :0: 2 B09<A5@88

   ArraySetAsSeries(Ind1Buffer,true);



//---- ?@52@0I5=85 48=0<8G5A:>3> <0AA820 2 8=48:0B>@=K9 1CD5@

   SetIndexBuffer(1,Ind2Buffer,INDICATOR_DATA);

//---- >ACI5AB2;5=85 A42830 8=48:0B>@0 2 ?> 3>@87>=B0;8 =0 Shift

   PlotIndexSetInteger(1,PLOT_SHIFT,Shift);

//---- >ACI5AB2;5=85 A42830 =0G0;0 >BAGQB0 >B@8A>2:8 8=48:0B>@0 2 =0 min_rates_total

   PlotIndexSetInteger(1,PLOT_DRAW_BEGIN,min_rates_total);

//---- CAB0=>2:0 7=0G5=89 8=48:0B>@0, :>B>@K5 =5 1C4CB 2848<K =0 3@0D8:5

   PlotIndexSetDouble(1,PLOT_EMPTY_VALUE,EMPTY_VALUE);

//---- 8=45:A0F8O M;5<5=B>2 2 1CD5@5 :0: 2 B09<A5@88

   ArraySetAsSeries(Ind2Buffer,true);



//---- ?@52@0I5=85 48=0<8G5A:>3> <0AA820 2 8=48:0B>@=K9 1CD5@

   SetIndexBuffer(2,Ind3Buffer,INDICATOR_DATA);

//---- >ACI5AB2;5=85 A42830 8=48:0B>@0 3 ?> 3>@87>=B0;8 =0 Shift

   PlotIndexSetInteger(2,PLOT_SHIFT,Shift);

//---- >ACI5AB2;5=85 A42830 =0G0;0 >BAGQB0 >B@8A>2:8 8=48:0B>@0 3 =0 min_rates_total

   PlotIndexSetInteger(2,PLOT_DRAW_BEGIN,min_rates_total);

//---- CAB0=>2:0 7=0G5=89 8=48:0B>@0, :>B>@K5 =5 1C4CB 2848<K =0 3@0D8:5

   PlotIndexSetDouble(2,PLOT_EMPTY_VALUE,EMPTY_VALUE);

//---- 8=45:A0F8O M;5<5=B>2 2 1CD5@5 :0: 2 B09<A5@88

   ArraySetAsSeries(Ind3Buffer,true);



//--- A>740=85 8<5=8 4;O >B>1@065=8O 2 >B45;L=>< ?>4>:=5 8 2> 2A?;K20NI59 ?>4A:07:5

   IndicatorSetString(INDICATOR_SHORTNAME,"TrendMFI_v1");

//--- >?@545;5=85 B>G=>AB8 >B>1@065=8O 7=0G5=89 8=48:0B>@0

   IndicatorSetInteger(INDICATOR_DIGITS,0);

//---- 7025@H5=85 8=8F80;870F88

   return(INIT_SUCCEEDED);

  }

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

//| Custom indicator iteration function                              |

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

int OnCalculate(

                const int rates_total,    // :>;8G5AB2> 8AB>@88 2 10@0E =0 B5:CI5< B8:5

                const int prev_calculated,// :>;8G5AB2> 8AB>@88 2 10@0E =0 ?@54K4CI5< B8:5

                const datetime &time[],

                const double &open[],

                const double& high[],     // F5=>2>9 <0AA82 <0:A8<C<>2 F5=K 4;O @0AGQB0 8=48:0B>@0

                const double& low[],      // F5=>2>9 <0AA82 <8=8<C<>2 F5=K  4;O @0AGQB0 8=48:0B>@0

                const double &close[],

                const long &tick_volume[],

                const long &volume[],

                const int &spread[]

                )

  {

//---- ?@>25@:0 :>;8G5AB20 10@>2 =0 4>AB0B>G=>ABL 4;O @0AGQB0

   if(BarsCalculated(MFI_Handle)<rates_total

      || BarsCalculated(FsMA_Handle)<rates_total

      || BarsCalculated(SlMA_Handle)<rates_total

      || rates_total<min_rates_total) return(RESET);



//---- >1JO2;5=8O ;>:0;L=KE ?5@5<5==KE 

   int to_copy;



//---- @0AGQBK =5>1E>48<>3> :>;8G5AB20 :>?8@C5<KE 40==KE 

   if(prev_calculated>rates_total || prev_calculated<=0)// ?@>25@:0 =0 ?5@2K9 AB0@B @0AGQB0 8=48:0B>@0

      to_copy=rates_total-min_rates_total; // AB0@B>2K9 =><5@ 4;O @0AGQB0 2A5E 10@>2

   else to_copy=rates_total-prev_calculated+1; // AB0@B>2K9 =><5@ 4;O @0AGQB0 =>2KE 10@>2



//---- :>?8@C5< 2=>2L ?>O282H85AO 40==K5 2 <0AA82K

   if(CopyBuffer(MFI_Handle,0,0,to_copy,Ind1Buffer)<=0) return(RESET);

   if(CopyBuffer(FsMA_Handle,0,0,to_copy,Ind2Buffer)<=0) return(RESET);

   if(CopyBuffer(SlMA_Handle,0,0,to_copy,Ind3Buffer)<=0) return(RESET);

//----     

   return(rates_total);

  }

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