Time: 2010-03-12 | Download file:Sma_centered_envelope_mtf+alerts~.mq4
//------------------------------------------------------------------
#property copyright "www.forex-tsd.com"
#property link "www.forex-tsd.com"
//------------------------------------------------------------------
#property indicator_chart_window
#property indicator_buffers 5
#property indicator_color1 Gold
#property indicator_color2 Gold
#property indicator_color3 Red
#property indicator_color4 Red
#property indicator_color5 Green
//
//
//
//
//
extern string TimeFrame = "current";
extern int HalfLength = 25;
extern int Price = PRICE_CLOSE;
extern int EnvelopeShift = 0;
extern double upperDeviation = 0.05;
extern double lowerDeviation = 0.05;
extern string note = "turn on Alert = true; turn off = false";
extern bool alertsOn = false;
extern bool alertsOnCurrent = false;
extern bool alertsMessage = true;
extern bool alertsSound = true;
extern bool alertsEmail = false;
extern string soundfile = "alert2.wav";
extern color xc_Text = LightGray;
//
//
//
//
//
double smBuf[];
double smBufDa[];
double smBufDb[];
double UpEnv[];
double DnEnv[];
double trend[];
int gi_PipsDecimal;
//
//
//
//
//
string indicatorFileName;
bool calculateValue;
bool returnBars;
int timeFrame;
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
//
//
//
//
int init()
{
HalfLength=MathMax(HalfLength,1);
IndicatorBuffers(6);
SetIndexBuffer(0,smBuf); SetIndexDrawBegin(0,HalfLength);
SetIndexBuffer(1,smBufDa); SetIndexDrawBegin(1,HalfLength);
SetIndexBuffer(2,smBufDb); SetIndexDrawBegin(2,HalfLength);
SetIndexBuffer(3,UpEnv); SetIndexDrawBegin(3,HalfLength);
SetIndexBuffer(4,DnEnv); SetIndexDrawBegin(4,HalfLength);
SetIndexBuffer(5,trend);
//
//
//
//
//
indicatorFileName = WindowExpertName();
returnBars = TimeFrame=="returnBars"; if (returnBars) return(0);
calculateValue = TimeFrame=="calculateValue"; if (calculateValue) return(0);
timeFrame = stringToTimeFrame(TimeFrame);
SetIndexShift(0,EnvelopeShift * timeFrame/Period());
SetIndexShift(1,EnvelopeShift * timeFrame/Period());
SetIndexShift(2,EnvelopeShift * timeFrame/Period());
SetIndexShift(3,EnvelopeShift * timeFrame/Period());
SetIndexShift(4,EnvelopeShift * timeFrame/Period());
//
//
//
//
//
IndicatorShortName(timeFrameToString(timeFrame)+" Sma centered envelopes ("+HalfLength+")");
return(0);
}
int deinit() { return(0); }
//+------------------------------------------------------------------
//|
//+------------------------------------------------------------------
//
//
int start()
{
int counted_bars=IndicatorCounted();
int i,j,limit;
if(counted_bars<0) return(-1);
if(counted_bars>0) counted_bars--;
limit=MathMin(Bars-1,Bars-counted_bars+HalfLength);
if (returnBars) { smBuf[0] = limit+1; return(0); }
//
//
//
//
//
if (calculateValue || timeFrame==Period())
{
if (trend[limit] == -1) ClearPoint(limit,smBufDa,smBufDb);
for (i=limit; i>=0; i--)
{
double sum = iMA(NULL,0,1,0,MODE_SMA,Price,i);
double sumw = 1;
for(j=1; j<=HalfLength; j++)
{
sum += iMA(NULL,0,1,0,MODE_SMA,Price,i+j);
sumw += 1;
if (j<=i)
{
sum += iMA(NULL,0,1,0,MODE_SMA,Price,i-j);
sumw += 1;
}
}
smBuf[i] = sum/sumw;
UpEnv[i] = (1+upperDeviation/100)*smBuf[i];
DnEnv[i] = (1-lowerDeviation/100)*smBuf[i];
smBufDa[i] = EMPTY_VALUE;
smBufDb[i] = EMPTY_VALUE;
trend[i] = trend[i+1];
if (smBuf[i]>smBuf[i+1]) trend[i] = 1;
if (smBuf[i]=0; i--)
{
int y = iBarShift(NULL,timeFrame,Time[i]);
smBuf[i] = iCustom(NULL,timeFrame,indicatorFileName,"calculateValue",HalfLength,Price,EnvelopeShift,upperDeviation,lowerDeviation,0,y);
smBufDa[i] = EMPTY_VALUE;
smBufDb[i] = EMPTY_VALUE;
UpEnv[i] = iCustom(NULL,timeFrame,indicatorFileName,"calculateValue",HalfLength,Price,EnvelopeShift,upperDeviation,lowerDeviation,3,y);
DnEnv[i] = iCustom(NULL,timeFrame,indicatorFileName,"calculateValue",HalfLength,Price,EnvelopeShift,upperDeviation,lowerDeviation,4,y);
trend[i] = iCustom(NULL,timeFrame,indicatorFileName,"calculateValue",HalfLength,Price,EnvelopeShift,upperDeviation,lowerDeviation,5,y);
//
//
//
//
//
}
for (i=limit;i>=0;i--) if (trend[i]==-1) PlotPoint(i,smBufDa,smBufDb,smBuf);
manageAlerts();
// РАССЧЕТ ДИСТАНЦИИ КАНАЛА
double ld_DistPts, ld_DistPips;
// Distance to mid
/*ld_DistPts = MathAbs(Bid - MdBuffer[0]);
ld_DistPips = Convert_2_Pips(ld_DistPts);
ObjectCreate("!Mid",OBJ_TEXT,0,0,0);
ObjectSet("!Mid",OBJPROP_TIME1,Time[0]+(3*Period()*60));
ObjectSet("!Mid",OBJPROP_PRICE1,MdBuffer[0]);
ObjectSetText("!Mid",DoubleToStr(ld_DistPips,gi_PipsDecimal),8,"Arial",xc_Text);*/
// Distance to upper
ld_DistPts = MathAbs(Bid - UpEnv[0]);
ld_DistPips = Convert_2_Pips(ld_DistPts);
ObjectCreate("!Upp",OBJ_TEXT,0,0,0);
ObjectSet("!Upp",OBJPROP_TIME1,Time[0]+(3*Period()*60));
ObjectSet("!Upp",OBJPROP_PRICE1,UpEnv[0]);
ObjectSetText("!Upp",DoubleToStr(ld_DistPips,gi_PipsDecimal),8,"Arial",xc_Text);
// Distance to lower
ld_DistPts = MathAbs(Bid - DnEnv[0]);
ld_DistPips = Convert_2_Pips(ld_DistPts);
ObjectCreate("!Low",OBJ_TEXT,0,0,0);
ObjectSet("!Low",OBJPROP_TIME1,Time[0]+(3*Period()*60));
ObjectSet("!Low",OBJPROP_PRICE1,DnEnv[0]);
ObjectSetText("!Low",DoubleToStr(ld_DistPips,gi_PipsDecimal),8,"Arial",xc_Text);
return(0);
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
//
//
//
//
//
void ClearPoint(int i,double& first[],double& second[])
{
if ((second[i] != EMPTY_VALUE) && (second[i+1] != EMPTY_VALUE))
second[i+1] = EMPTY_VALUE;
else
if ((first[i] != EMPTY_VALUE) && (first[i+1] != EMPTY_VALUE) && (first[i+2] == EMPTY_VALUE))
first[i+1] = EMPTY_VALUE;
}
//
//
//
//
//
void PlotPoint(int i,double& first[],double& second[],double& from[])
{
if (first[i+1] == EMPTY_VALUE)
{
if (first[i+2] == EMPTY_VALUE) {
first[i] = from[i];
first[i+1] = from[i+1];
second[i] = EMPTY_VALUE;
}
else {
second[i] = from[i];
second[i+1] = from[i+1];
first[i] = EMPTY_VALUE;
}
}
else
{
first[i] = from[i];
second[i] = EMPTY_VALUE;
}
}
//+-------------------------------------------------------------------
//|
//+-------------------------------------------------------------------
//
//
//
//
//
string sTfTable[] = {"M1","M5","M15","M30","H1","H4","D1","W1","MN"};
int iTfTable[] = {1,5,15,30,60,240,1440,10080,43200};
//
//
//
//
//
int stringToTimeFrame(string tfs)
{
tfs = StringUpperCase(tfs);
for (int i=ArraySize(iTfTable)-1; i>=0; i--)
if (tfs==sTfTable[i] || tfs==""+iTfTable[i]) return(MathMax(iTfTable[i],Period()));
return(Period());
}
string timeFrameToString(int tf)
{
for (int i=ArraySize(iTfTable)-1; i>=0; i--)
if (tf==iTfTable[i]) return(sTfTable[i]);
return("");
}
//
//
//
//
//
string StringUpperCase(string str)
{
string s = str;
for (int length=StringLen(str)-1; length>=0; length--)
{
int char_ = StringGetChar(s, length);
if((char_ > 96 && char_ < 123) || (char_ > 223 && char_ < 256))
s = StringSetChar(s, length, char_ - 32);
else if(char_ > -33 && char_ < 0)
s = StringSetChar(s, length, char_ + 224);
}
return(s);
}
//
//
//
//
//
void manageAlerts()
{
if (!calculateValue && alertsOn)
{
if (alertsOnCurrent)
int whichBar = 0;
else whichBar = 1; whichBar = iBarShift(NULL,0,iTime(NULL,timeFrame,whichBar));
if (trend[whichBar] != trend[whichBar+1])
{
if (trend[whichBar] == 1) doAlert(whichBar,"sloping up");
if (trend[whichBar] ==-1) doAlert(whichBar,"sloping down");
}
}
}
//
//
//
//
//
void doAlert(int forBar, string doWhat)
{
static string previousAlert="nothing";
static datetime previousTime;
string message;
if (previousAlert != doWhat || previousTime != Time[forBar]) {
previousAlert = doWhat;
previousTime = Time[forBar];
//
//
//
//
//
message = StringConcatenate(Symbol()," at ",TimeToStr(TimeLocal(),TIME_SECONDS)," - ",timeFrameToString(timeFrame)+" Sma centered envelopes ",doWhat);
if (alertsMessage) Alert(message);
if (alertsEmail) SendMail(StringConcatenate(Symbol()," Sma centered envelopes "),message);
if (alertsSound) PlaySound("alert2.wav");
}
}
//БЛОК УПРАВЛЕНИЯ ЦИФЕРКАМИ
void Object_Create(string ps_name,int pi_x,int pi_y,string ps_text=" ",int pi_size=12,
string ps_font="Arial",color pc_colour=CLR_NONE)
{
//----
// if (colour==CLR_NONE) colour=xcBackground;
ObjectCreate(ps_name,OBJ_LABEL,0,0,0,0,0);
ObjectSet(ps_name,OBJPROP_CORNER,3);
ObjectSet(ps_name,OBJPROP_COLOR,pc_colour);
ObjectSet(ps_name,OBJPROP_XDISTANCE,pi_x);
ObjectSet(ps_name,OBJPROP_YDISTANCE,pi_y);
ObjectSetText(ps_name,ps_text,pi_size,ps_font,pc_colour);
//----
return ;
}
//+------------------------------------------------------------------+
//| convert to points |
//+------------------------------------------------------------------+
double Convert_2_Pts(double pd_Pips)
{
//----
int pd_Points=pd_Pips; // Default - no conversion
if (Digits == 5 || (Digits == 3 && StringFind(Symbol(), "JPY") != -1))
pd_Points=pd_Pips*10;
if (Digits == 6 || (Digits == 4 && StringFind(Symbol(), "JPY") != -1))
pd_Points=pd_Pips*100;
//----
return(pd_Points);
}
//+------------------------------------------------------------------+
//| convert to pips |
//+------------------------------------------------------------------+
double Convert_2_Pips(double pd_Points)
{
//----
double pd_Pips=pd_Points/Point; // Default - no conversion
if (Digits == 5 || (Digits == 3 && StringFind(Symbol(), "JPY") != -1))
{
pd_Pips=pd_Points/Point/10;
}
if (Digits == 6 || (Digits == 4 && StringFind(Symbol(), "JPY") != -1))
{
pd_Pips=pd_Points/Point/100;
}
//----
return(pd_Pips);
}
//+------------------------------------------------------------------+
//| get the pips decimal places |
//+------------------------------------------------------------------+
int Get_Pips_Decimal()
{
//----
int pi_PipsDecimal = 0; // Default - no decimals
if (Digits == 5 || (Digits == 3 && StringFind(Symbol(), "JPY") != -1))
{
pi_PipsDecimal = 1;
}
if (Digits == 6 || (Digits == 4 && StringFind(Symbol(), "JPY") != -1))
{
pi_PipsDecimal = 2;
}
//----
return(pi_PipsDecimal);
}
//+------------------------------------------------------------------+