Price Data Components
Indicators Used
Miscellaneous
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CheckMarkPattern_AD
#property copyright "Scriptong"
#property link "http://advancetools.net"
#property description "English: Finding the \"Check mark\" pattern.\nRussian: Ïîèñê ïàòòåðíà \"Ãàëî÷êà\"."
#property version "1.10"
#property strict
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 clrDodgerBlue
#property indicator_level1 0.0
enum ENUM_YESNO
{
NO, // No / Íåò
YES // Yes / Äà
};
enum ENUM_INDICATOR_TYPE
{
RSI, // RSI
MACD, // MACD
MOMENTUM, // Momentum
RVI, // RVI
STOCHASTIC, // Stochastic
CCI, // CCI
StdDev, // Standart deviation
DERIVATIVE, // Derivative / ïðîèçâîäíàÿ
WILLIAM_BLAU, // William Blau
CUSTOM // Custom / Ïîëüçîâàòåëüñêèé
};
enum ENUM_EXTREMUM_TYPE
{
EXTREMUM_TYPE_NONE,
EXTREMUM_TYPE_MIN,
EXTREMUM_TYPE_MAX
};
enum ENUM_CUSTOM_PARAM_CNT
{
PARAM_CNT_0, // 0
PARAM_CNT_1, // 1
PARAM_CNT_2, // 2
PARAM_CNT_3, // 3
PARAM_CNT_4, // 4
PARAM_CNT_5, // 5
PARAM_CNT_6, // 6
PARAM_CNT_7, // 7
PARAM_CNT_8, // 8
PARAM_CNT_9, // 9
PARAM_CNT_10, // 10
PARAM_CNT_11, // 11
PARAM_CNT_12, // 12
PARAM_CNT_13, // 13
PARAM_CNT_14, // 14
PARAM_CNT_15, // 15
PARAM_CNT_16, // 16
PARAM_CNT_17, // 17
PARAM_CNT_18, // 18
PARAM_CNT_19, // 19
PARAM_CNT_20 // 20
};
// Input parameters of indicator
input string i_string1 = "The base indicator parameters / Ïàðàìåòðû áàçîâîãî èíäèêàòîðà"; // ============================
input ENUM_INDICATOR_TYPE i_indicatorType = STOCHASTIC; // Base indicator / Áàçîâûé èíäèêàòîð
input int i_barsPeriod1 = 20; // First calculate period / Ïåðâûé ïåðèîä ðàñ÷åòà
input int i_barsPeriod2 = 3; // Second calculate period / Âòîðîé ïåðèîä ðàñ÷åòà
input int i_barsPeriod3 = 3; // Third calculate period / Òðåòèé ïåðèîä ðàñ÷åòà
input ENUM_APPLIED_PRICE i_indAppliedPrice = PRICE_CLOSE; // Applied price of indicator / Öåíà ðàñ÷åòà èíäèêàòîðà
input ENUM_MA_METHOD i_indMAMethod = MODE_EMA; // MA calculate method / Ìåòîä ðàñ÷åòà ñðåäíåãî
input string i_string3 = "Custom indicator / Ïîëüçîâàòåëüñêèé èíäèêàòîð"; // ============================
input string i_customName = "Sentiment_Line"; // The name of indicator / Èìÿ èíäèêàòîðà
input int i_customBuffer = 0; // Index of data buffer / Èíäåêñ áóôåðà äëÿ ñúåìà äàííûõ
input ENUM_CUSTOM_PARAM_CNT i_customParamCnt = PARAM_CNT_3; // Amount of ind. parameters / Êîë-âî ïàðàìåòðîâ èíäèêàòîðà
input double i_customParam1 = 13.0; // Value of the 1st parameter / Çíà÷åíèå 1-îãî ïàðàìåòðà
input double i_customParam2 = 1.0; // Value of the 2nd parameter / Çíà÷åíèå 2-îãî ïàðàìåòðà
input double i_customParam3 = 0.0; // Value of the 3rd parameter / Çíà÷åíèå 3-îãî ïàðàìåòðà
input double i_customParam4 = 0.0; // Value of the 4th parameter / Çíà÷åíèå 4-îãî ïàðàìåòðà
input double i_customParam5 = 0.0; // Value of the 5th parameter / Çíà÷åíèå 5-îãî ïàðàìåòðà
input double i_customParam6 = 0.0; // Value of the 6th parameter / Çíà÷åíèå 6-îãî ïàðàìåòðà
input double i_customParam7 = 0.0; // Value of the 7th parameter / Çíà÷åíèå 7-îãî ïàðàìåòðà
input double i_customParam8 = 0.0; // Value of the 8th parameter / Çíà÷åíèå 8-îãî ïàðàìåòðà
input double i_customParam9 = 0.0; // Value of the 9th parameter / Çíà÷åíèå 9-îãî ïàðàìåòðà
input double i_customParam10 = 0.0; // Value of the 10th parameter / Çíà÷åíèå 10-îãî ïàðàìåòðà
input double i_customParam11 = 0.0; // Value of the 11th parameter / Çíà÷åíèå 11-îãî ïàðàìåòðà
input double i_customParam12 = 0.0; // Value of the 12th parameter / Çíà÷åíèå 12-îãî ïàðàìåòðà
input double i_customParam13 = 0.0; // Value of the 13th parameter / Çíà÷åíèå 13-îãî ïàðàìåòðà
input double i_customParam14 = 0.0; // Value of the 14th parameter / Çíà÷åíèå 14-îãî ïàðàìåòðà
input double i_customParam15 = 0.0; // Value of the 15th parameter / Çíà÷åíèå 15-îãî ïàðàìåòðà
input double i_customParam16 = 0.0; // Value of the 16th parameter / Çíà÷åíèå 16-îãî ïàðàìåòðà
input double i_customParam17 = 0.0; // Value of the 17th parameter / Çíà÷åíèå 17-îãî ïàðàìåòðà
input double i_customParam18 = 0.0; // Value of the 18th parameter / Çíà÷åíèå 18-îãî ïàðàìåòðà
input double i_customParam19 = 0.0; // Value of the 19th parameter / Çíà÷åíèå 19-îãî ïàðàìåòðà
input double i_customParam20 = 0.0; // Value of the 20th parameter / Çíà÷åíèå 20-îãî ïàðàìåòðà
input string i_string4 = "Parameters of displaying / Ïàðàìåòðû îòîáðàæåíèÿ"; // ============================
input ENUM_YESNO i_isAlert = YES; // Alert on pattern found? / Ñèãíàë ïðè ïàòòåðíå?
input ENUM_YESNO i_isPush = YES; // Notification on pattern found? / Óâåäîìëÿòü î ïàòòåðíå?
input string i_string4_1 = "Color of patterns / Öâåòà ïàòòåðíà"; // ============================
input color i_bullsPatternColor = clrBlue; // Color of bulls pattern / Öâåò ëèíèé áû÷üåãî ïàòòåðíà
input color i_bearsPatternColor = clrRed; // Color of bears divergence line / Öâåò ëèíèé ìåäâ. ïàòòåðíà
input int i_indBarsCount = 10000; // The number of bars to display / Êîëè÷åñòâî áàðîâ îòîáðàæåíèÿ
// The indicator's buffers
double g_indValues[];
double g_tempBuffer[];
// Other global variables of indicator
bool g_activate; // Sign of successful initialization of indicator
int g_indSubWindow; // Subwindow index of indicator
string g_indName, // The unique name of the indicator for easy location indicator subwindow
g_tfName; // Name of current TF
#define PREFIX "CHEMAPAT_" // Prefix the name of the graphic objects which displayed by indicator
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Custom indicator initialization function |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
int OnInit()
{
g_activate = false;
if (!IsTuningParametersCorrect())
return INIT_FAILED;
if (!BuffersBind())
return (INIT_FAILED);
g_tfName = GetCurrentTFName();
g_indSubWindow = -1;
g_activate = true;
return INIT_SUCCEEDED;
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Checking the correctness of input parameters |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
bool IsTuningParametersCorrect()
{
string name = WindowExpertName();
bool isRussianLang = (TerminalInfoString(TERMINAL_LANGUAGE) == "Russian");
if (i_barsPeriod1 < 1)
{
Alert(name, (isRussianLang)? ": ïåðâîå êîëè÷åñòâî áàðîâ äëÿ ðàñ÷åòà ïîêàçàíèé èíäèêàòîðà ìåíåå 1. Èíäèêàòîð îòêëþ÷åí." :
": the first amount of bars for calculate the indicator values is less then 1. The indicator is turned off.");
return false;
}
if (i_barsPeriod2 < 1)
{
Alert(name, (isRussianLang)? ": âòîðîå êîëè÷åñòâî áàðîâ äëÿ ðàñ÷åòà ïîêàçàíèé èíäèêàòîðà ìåíåå 1. Èíäèêàòîð îòêëþ÷åí." :
": the second amount of bars for calculate the indicator values is less then 1. The indicator is turned off.");
return false;
}
if (i_barsPeriod3 < 1)
{
Alert(name, (isRussianLang)? ": òðåòüå êîëè÷åñòâî áàðîâ äëÿ ðàñ÷åòà ïîêàçàíèé èíäèêàòîðà ìåíåå 1. Èíäèêàòîð îòêëþ÷åí." :
": the third amount of bars for calculate the indicator values is less then 1. The indicator is turned off.");
return false;
}
return (true);
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Defining the current TF name |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
string GetCurrentTFName()
{
switch(_Period)
{
case PERIOD_M1: return "M1";
case PERIOD_M5: return "M5";
case PERIOD_M15: return "M15";
case PERIOD_M30: return "M30";
case PERIOD_H1: return "H1";
case PERIOD_H4: return "H4";
case PERIOD_D1: return "D1";
case PERIOD_W1: return "W1";
case PERIOD_MN1: return "MN1";
}
return "U/D";
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Binding the indicator buffers with arrays |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
bool BuffersBind()
{
if (i_indicatorType == WILLIAM_BLAU)
IndicatorBuffers(2);
string name = WindowExpertName();
bool isRussianLang = (TerminalInfoString(TERMINAL_LANGUAGE) == "Russian");
if (!SetIndexBuffer(0, g_indValues))
{
Alert(name, (isRussianLang)? ": îøèáêà ñâÿçûâàíèÿ ìàññèâîâ ñ áóôåðàìè èíäèêàòîðà. Îøèáêà ¹" + IntegerToString(GetLastError()) :
": error of binding of the arrays and the indicator buffers. Error N" + IntegerToString(GetLastError()));
return false;
}
if (i_indicatorType == WILLIAM_BLAU)
if (!SetIndexBuffer(1, g_tempBuffer))
{
Alert(name, (isRussianLang)? ": îøèáêà ñâÿçûâàíèÿ ìàññèâîâ ñ áóôåðàìè èíäèêàòîðà. Îøèáêà ¹" + IntegerToString(GetLastError()) :
": error of binding of the arrays and the indicator buffers. Error N" + IntegerToString(GetLastError()));
return false;
}
SetIndexStyle(0, DRAW_LINE);
if (i_indicatorType == WILLIAM_BLAU)
SetIndexStyle(1, DRAW_NONE);
g_indName = "CheckMarkPattern at " + GetBaseIndicatorName() + IntegerToString(GetTickCount());
IndicatorShortName(g_indName);
return true;
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Defining the name of the base indicator |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
string GetBaseIndicatorName()
{
if (i_indicatorType == CUSTOM)
return i_customName + " (" + DoubleToString(i_customParam1, 1) + ", " + DoubleToString(i_customParam2, 1) + ", " + DoubleToString(i_customParam3, 1) + ") ";
return EnumToString(i_indicatorType) + " (" + IntegerToString(i_barsPeriod1) + ", " + IntegerToString(i_barsPeriod2) + ", " + IntegerToString(i_barsPeriod3) + ") ";
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Custom indicator deinitialization function |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
void OnDeinit(const int reason)
{
ObjectsDeleteAll(0, PREFIX + IntegerToString(g_indSubWindow));
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Displaying the trend line |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
void ShowTrendLine(int subWindow, datetime time1, double price1, datetime time2, double price2, string toolTip, color clr)
{
string name = PREFIX + IntegerToString(g_indSubWindow) + IntegerToString(subWindow) + IntegerToString(time1) + IntegerToString(time2);
if (ObjectFind(0, name) < 0)
{
ObjectCreate(0, name, OBJ_TREND, subWindow, time1, price1, time2, price2);
ObjectSetInteger(0, name, OBJPROP_COLOR, clr);
ObjectSetInteger(0, name, OBJPROP_BACK, false);
ObjectSetInteger(0, name, OBJPROP_WIDTH, 2);
ObjectSetInteger(0, name, OBJPROP_RAY, false);
ObjectSetInteger(0, name, OBJPROP_HIDDEN, true);
ObjectSetInteger(0, name, OBJPROP_SELECTABLE, false);
ObjectSetString(0, name, OBJPROP_TOOLTIP, toolTip);
return;
}
ObjectMove(0, name, 0, time1, price1);
ObjectMove(0, name, 1, time2, price2);
ObjectSetInteger(0, name, OBJPROP_COLOR, clr);
ObjectSetString(0, name, OBJPROP_TOOLTIP, toolTip);
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Determination of bar index which needed to recalculate |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
int GetRecalcIndex(int& total, const int ratesTotal, const int prevCalculated)
{
total = ratesTotal - 1;
if (i_indBarsCount > 0 && i_indBarsCount < total)
total = MathMin(i_indBarsCount, total);
if (prevCalculated < ratesTotal - 1)
{
InitializeBuffers();
return (total);
}
return (MathMin(ratesTotal - prevCalculated, total));
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Initialize of all indicator buffers |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
void InitializeBuffers()
{
ArrayInitialize(g_indValues, EMPTY_VALUE);
ArrayInitialize(g_tempBuffer, EMPTY_VALUE);
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Calculate the price value at the specified bar |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
double GetPrice(int barIndex)
{
barIndex = (int) MathMin(Bars - 1, barIndex);
switch (i_indAppliedPrice)
{
case PRICE_CLOSE: return(Close[barIndex]);
case PRICE_OPEN: return(Open[barIndex]);
case PRICE_HIGH: return(High[barIndex]);
case PRICE_LOW: return(Low[barIndex]);
case PRICE_MEDIAN: return((High[barIndex] + Low[barIndex]) / 2);
case PRICE_TYPICAL: return((High[barIndex] + Low[barIndex] + Close[barIndex]) / 3);
case PRICE_WEIGHTED: return((High[barIndex] + Low[barIndex] + 2 * Close[barIndex]) / 4);
}
return 0.0;
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Calculate the value of the custom indicator at the specified bar |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
double GetCustomIndicatorValue(int barIndex)
{
switch(i_customParamCnt)
{
case PARAM_CNT_0: return iCustom(NULL, 0, i_customName, i_customBuffer, barIndex);
case PARAM_CNT_1: return iCustom(NULL, 0, i_customName, i_customParam1, i_customBuffer, barIndex);
case PARAM_CNT_2: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customBuffer, barIndex);
case PARAM_CNT_3: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customBuffer, barIndex);
case PARAM_CNT_4: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customBuffer, barIndex);
case PARAM_CNT_5: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customBuffer, barIndex);
case PARAM_CNT_6: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customBuffer, barIndex);
case PARAM_CNT_7: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7,
i_customBuffer, barIndex);
case PARAM_CNT_8: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customBuffer, barIndex);
case PARAM_CNT_9: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customParam9, i_customBuffer, barIndex);
case PARAM_CNT_10: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customParam9, i_customParam10, i_customBuffer, barIndex);
case PARAM_CNT_11: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customParam9, i_customParam10, i_customParam11, i_customBuffer, barIndex);
case PARAM_CNT_12: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customParam9, i_customParam10, i_customParam11, i_customParam12, i_customBuffer, barIndex);
case PARAM_CNT_13: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customParam9, i_customParam10, i_customParam11, i_customParam12, i_customParam13, i_customBuffer, barIndex);
case PARAM_CNT_14: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customParam9, i_customParam10, i_customParam11, i_customParam12, i_customParam13, i_customParam14, i_customBuffer, barIndex);
case PARAM_CNT_15: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customParam9, i_customParam10, i_customParam11, i_customParam12, i_customParam13, i_customParam14, i_customParam15, i_customBuffer, barIndex);
case PARAM_CNT_16: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customParam9, i_customParam10, i_customParam11, i_customParam12, i_customParam13, i_customParam14, i_customParam15, i_customParam16,
i_customBuffer, barIndex);
case PARAM_CNT_17: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customParam9, i_customParam10, i_customParam11, i_customParam12, i_customParam13, i_customParam14, i_customParam15, i_customParam16, i_customParam17,
i_customBuffer, barIndex);
case PARAM_CNT_18: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customParam9, i_customParam10, i_customParam11, i_customParam12, i_customParam13, i_customParam14, i_customParam15, i_customParam16, i_customParam17,
i_customParam18, i_customBuffer, barIndex);
case PARAM_CNT_19: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customParam9, i_customParam10, i_customParam11, i_customParam12, i_customParam13, i_customParam14, i_customParam15, i_customParam16, i_customParam17,
i_customParam18, i_customParam19, i_customBuffer, barIndex);
case PARAM_CNT_20: return iCustom(NULL, 0, i_customName, i_customParam1, i_customParam2, i_customParam3, i_customParam4, i_customParam5, i_customParam6, i_customParam7, i_customParam8,
i_customParam9, i_customParam10, i_customParam11, i_customParam12, i_customParam13, i_customParam14, i_customParam15, i_customParam16, i_customParam17,
i_customParam18, i_customParam19, i_customParam20, i_customBuffer, barIndex);
}
return 0.0;
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Calculate the value of base indicator at the specified bar |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
double GetBaseIndicatorValue(int barIndex)
{
switch (i_indicatorType)
{
case RSI: return iRSI(NULL, 0, i_barsPeriod1, i_indAppliedPrice, barIndex);
case MACD: return iMACD(NULL, 0, i_barsPeriod1, i_barsPeriod2, 1, i_indAppliedPrice, MODE_MAIN, barIndex);
case MOMENTUM: return iMomentum(NULL, 0, i_barsPeriod1, i_indAppliedPrice, barIndex);
case RVI: return iRVI(NULL, 0, i_barsPeriod1, MODE_MAIN, barIndex);
case STOCHASTIC: return iStochastic(NULL, 0, i_barsPeriod1, i_barsPeriod2, i_barsPeriod3, i_indMAMethod, 1, MODE_MAIN, barIndex);
case CCI: return iCCI(NULL, 0, i_barsPeriod1, i_indAppliedPrice, barIndex);
case StdDev: return iStdDev(NULL, 0, i_barsPeriod1, 0, i_indMAMethod, i_indAppliedPrice, barIndex);
case DERIVATIVE: return 100.0 * (GetPrice(barIndex) - GetPrice(barIndex + i_barsPeriod1)) / i_barsPeriod1;
case CUSTOM: return GetCustomIndicatorValue(barIndex);
}
return 0.0;
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Sound and Push-notifications of divergence |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
void SignalOnPattern(string text)
{
static datetime lastSignal = 0;
if (lastSignal >= iTime(NULL, 0, 0))
return;
lastSignal = iTime(NULL, 0, 0);
if (i_isAlert)
Alert(Symbol(), ", ", g_tfName, ": ", text);
if (i_isPush)
SendNotification(Symbol() + ", " + g_tfName + ": " + text);
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Get type of base indicator extremum |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
ENUM_EXTREMUM_TYPE GetIndicatorExtremum(int barIndex, int total)
{
if (barIndex > total - 3 || barIndex < 0)
return EXTREMUM_TYPE_NONE;
if (g_indValues[barIndex] > g_indValues[barIndex + 1] && g_indValues[barIndex + 1] < g_indValues[barIndex + 2])
return EXTREMUM_TYPE_MIN;
if (g_indValues[barIndex] < g_indValues[barIndex + 1] && g_indValues[barIndex + 1] > g_indValues[barIndex + 2])
return EXTREMUM_TYPE_MAX;
return EXTREMUM_TYPE_NONE;
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Get type of market extremum |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
ENUM_EXTREMUM_TYPE GetMarketExtremum(int barIndex, int total)
{
if (barIndex > total - 3 || barIndex < 0)
return EXTREMUM_TYPE_NONE;
double closeRight = iClose(NULL, 0, barIndex);
double closeCenter = iClose(NULL, 0, barIndex + 1);
double closeLeft = iClose(NULL, 0, barIndex + 2);
if (closeRight > closeCenter && closeCenter < closeLeft)
return EXTREMUM_TYPE_MIN;
if (closeRight < closeCenter && closeCenter > closeLeft)
return EXTREMUM_TYPE_MAX;
return EXTREMUM_TYPE_NONE;
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Show the pattern |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
void ShowPattern(int barIndex, color patternColor, string text)
{
datetime timeRight = iTime(NULL, 0, barIndex);
datetime timeCenter = iTime(NULL, 0, barIndex + 1);
datetime timeLeft = iTime(NULL, 0, barIndex + 2);
double closeCenter = iClose(NULL, 0, barIndex + 1);
ShowTrendLine(0, timeRight, iClose(NULL, 0, barIndex), timeCenter, closeCenter, text, patternColor);
ShowTrendLine(0, timeCenter, closeCenter, timeLeft, iClose(NULL, 0, barIndex + 2), text, patternColor);
ShowTrendLine(g_indSubWindow, timeRight, g_indValues[barIndex], timeCenter, g_indValues[barIndex + 1], text, patternColor);
ShowTrendLine(g_indSubWindow, timeCenter, g_indValues[barIndex + 1], timeLeft, g_indValues[barIndex + 2], text, patternColor);
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Process the specified bar |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
void ProcessBar(int barIndex, int total)
{
bool result = false;
// Is the indicator extremum?
ENUM_EXTREMUM_TYPE indExtremum = GetIndicatorExtremum(barIndex, total);
if (indExtremum == EXTREMUM_TYPE_NONE)
return;
// Is the market extremum?
ENUM_EXTREMUM_TYPE marketExtremum = GetMarketExtremum(barIndex, total);
if (marketExtremum == EXTREMUM_TYPE_NONE || marketExtremum == indExtremum)
return;
// Pattern was found. Show it.
string text = (indExtremum == EXTREMUM_TYPE_MIN)? "Bull pattern" : "Bear pattern";
ShowPattern(barIndex, (indExtremum == EXTREMUM_TYPE_MIN)? i_bullsPatternColor : i_bearsPatternColor, text);
if (barIndex == 1)
SignalOnPattern(text);
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Recalculate the values of William Blau |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
void CalculateDataByWilliamBlau(int limit, int total)
{
for (int i = limit; i > 0; i--)
g_tempBuffer[i] = iMA(NULL, 0, i_barsPeriod2, 0, MODE_EMA, i_indAppliedPrice, i) - iMA(NULL, 0, i_barsPeriod1, 0, MODE_EMA, i_indAppliedPrice, i);
for (int i = limit; i > 0; i--)
{
g_indValues[i] = iMAOnArray(g_tempBuffer, 0, i_barsPeriod3, 0, MODE_EMA, i);
ProcessBar(i, total);
}
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| Displaying of indicators values |
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
void ShowIndicatorData(int limit, int total)
{
if (i_indicatorType == WILLIAM_BLAU)
{
CalculateDataByWilliamBlau(limit, total);
return;
}
for (int i = limit; i > 0; i--)
{
g_indValues[i] = GetBaseIndicatorValue(i);
ProcessBar(i, total);
}
}
//+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
//| 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 (!g_activate)
return rates_total;
g_indSubWindow = WindowFind(g_indName);
if (g_indSubWindow < 0)
return 0;
int total;
int limit = GetRecalcIndex(total, rates_total, prev_calculated);
ShowIndicatorData(limit, total);
WindowRedraw();
return rates_total;
}
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