// // "00-HighLowBand_v100.mq4" -- High-Low Band // // Ver. 1.00 2009/01/02(Fri) initial version // // #property copyright "00 - 00mql4@gmail.com" #property link "http://www.mql4.com/" //---- defines #define DodgerBlue2 0xaa6014 #define Crimson2 0x280d93 //---- indicator settings #property indicator_chart_window #property indicator_buffers 7 #property indicator_color1 LightSkyBlue // 0: High #property indicator_color2 LightSteelBlue // 1: Center #property indicator_color3 LightSkyBlue // 2: Low #property indicator_color4 DodgerBlue // 3: High break signal, Long #property indicator_color5 Crimson // 4: Low break signal, Short #property indicator_color6 DodgerBlue2 // 5: Center cross signal, Long #property indicator_color7 Crimson2 // 6: Center cross signal, Short #property indicator_width1 1 #property indicator_width2 1 #property indicator_width3 1 #property indicator_width4 1 #property indicator_width5 1 #property indicator_width6 1 #property indicator_width7 1 #property indicator_style1 STYLE_SOLID #property indicator_style2 STYLE_SOLID #property indicator_style3 STYLE_SOLID #property indicator_style4 STYLE_SOLID #property indicator_style5 STYLE_SOLID #property indicator_style6 STYLE_SOLID #property indicator_style7 STYLE_SOLID //---- defines //---- input parameters extern int timeFrame = 0; // time frame extern int nPeriod = 20; // period extern int shiftHiLo = 1; // number of bars to shift High-Low Band extern int shiftCenter = 0; // number of bars to shift Center line extern bool bAlertBreak = true; // alert on cross middle line extern bool bAlertCross = true; // alert on cross middle line extern int nMaxBars = 2000; // maximum number of bars to calculate, 0: no limit //---- buffers double BufferHigh[]; // 0: High double BufferCenter[]; // 1: Center double BufferLow[]; // 2: Low double BufferHighBreakLong[]; // 3: High break signal, Long double BufferLowBreakShort[]; // 4: Low break signal, Short double BufferCenterCrossLong[]; // 5: Center cross signal, Long double BufferCenterCrossShort[]; // 6: Center cross signal, Short //---- vars string sIndicatorName = ""; string sPrefix = ""; string sIndSelf = "00-HighLowBand_v100"; int markLong = 233; int markShort = 234; datetime tAlertLast = 0; //---------------------------------------------------------------------- string TimeFrameToStr(int timeFrame) { switch (timeFrame) { case 1: return("M1"); case 5: return("M5"); case 15: return("M15"); case 30: return("M30"); case 60: return("H1"); case 240: return("H4"); case 1440: return("D1"); case 10080: return("W1"); case 43200: return("MN"); } return("??"); } //---------------------------------------------------------------------- void init() { if (timeFrame == 0) { timeFrame = Period(); } string tf = TimeFrameToStr(timeFrame); sIndicatorName = sIndSelf + "(" + tf + "," + nPeriod + ")"; sPrefix = sIndicatorName; IndicatorShortName(sIndicatorName); SetIndexBuffer(0, BufferHigh); SetIndexBuffer(1, BufferCenter); SetIndexBuffer(2, BufferLow); SetIndexBuffer(3, BufferHighBreakLong); SetIndexBuffer(4, BufferLowBreakShort); SetIndexBuffer(5, BufferCenterCrossLong); SetIndexBuffer(6, BufferCenterCrossShort); SetIndexLabel(0, "High"); SetIndexLabel(1, "Center"); SetIndexLabel(2, "Low"); SetIndexLabel(3, "High break, Long signal"); SetIndexLabel(4, "Low break, Short signal"); SetIndexLabel(5, "Center cross, Long signal"); SetIndexLabel(6, "Center cross, Short signal"); SetIndexStyle(0, DRAW_LINE); SetIndexStyle(1, DRAW_LINE); SetIndexStyle(2, DRAW_LINE); SetIndexStyle(3, DRAW_ARROW); SetIndexStyle(4, DRAW_ARROW); SetIndexStyle(5, DRAW_ARROW); SetIndexStyle(6, DRAW_ARROW); SetIndexArrow(3, markLong); SetIndexArrow(4, markShort); SetIndexArrow(5, markLong); SetIndexArrow(6, markShort); int n = nPeriod; if (nMaxBars > 0) { n += Bars - MathMin(Bars, nMaxBars); } SetIndexDrawBegin(0, n); SetIndexDrawBegin(1, n); SetIndexDrawBegin(2, n); SetIndexDrawBegin(3, n); SetIndexDrawBegin(4, n); SetIndexDrawBegin(5, n); SetIndexDrawBegin(6, n); } //---------------------------------------------------------------------- void start() { int limit; int counted_bars = IndicatorCounted(); if (counted_bars > 0) { counted_bars--; } limit = Bars - counted_bars; int limit0 = limit; if (nMaxBars > 0) { limit = MathMin(limit, nMaxBars); } // clear beyond limits for (int i = limit0 - 1; i >= limit; i--) { BufferHigh[i] = EMPTY_VALUE; BufferCenter[i] = EMPTY_VALUE; BufferLow[i] = EMPTY_VALUE; BufferHighBreakLong[i] = EMPTY_VALUE; BufferLowBreakShort[i] = EMPTY_VALUE; BufferCenterCrossLong[i] = EMPTY_VALUE; BufferCenterCrossShort[i] = EMPTY_VALUE; } if (timeFrame != Period()) { // MTF int scale = timeFrame / Period(); limit = MathMax(limit, scale); for (i = limit - 1; i >= 0; i--) { int x = iBarShift(NULL, timeFrame, Time[i]); BufferHigh[i] = iCustom(NULL, timeFrame, sIndSelf, 0, nPeriod, shiftHiLo, shiftCenter, bAlertBreak, bAlertCross, nMaxBars, 0, x); BufferCenter[i] = iCustom(NULL, timeFrame, sIndSelf, 0, nPeriod, shiftHiLo, shiftCenter, bAlertBreak, bAlertCross, nMaxBars, 1, x); BufferLow[i] = iCustom(NULL, timeFrame, sIndSelf, 0, nPeriod, shiftHiLo, shiftCenter, bAlertBreak, bAlertCross, nMaxBars, 2, x); BufferHighBreakLong[i] = iCustom(NULL, timeFrame, sIndSelf, 0, nPeriod, shiftHiLo, shiftCenter, bAlertBreak, bAlertCross, nMaxBars, 3, x); BufferLowBreakShort[i] = iCustom(NULL, timeFrame, sIndSelf, 0, nPeriod, shiftHiLo, shiftCenter, bAlertBreak, bAlertCross, nMaxBars, 4, x); BufferCenterCrossLong[i] = iCustom(NULL, timeFrame, sIndSelf, 0, nPeriod, shiftHiLo, shiftCenter, bAlertBreak, bAlertCross, nMaxBars, 5, x); BufferCenterCrossShort[i] = iCustom(NULL, timeFrame, sIndSelf, 0, nPeriod, shiftHiLo, shiftCenter, bAlertBreak, bAlertCross, nMaxBars, 6, x); } // check alert if (bAlertBreak || bAlertCross) { bool bFire = ((bAlertBreak && (BufferHighBreakLong[0] != EMPTY_VALUE|| BufferLowBreakShort[0] != EMPTY_VALUE)) || (bAlertCross && (BufferCenterCrossLong[0] != EMPTY_VALUE|| BufferCenterCrossShort[0] != EMPTY_VALUE))); if (bFire && tAlertLast != Time[0]) { PlaySound("alert.wav"); tAlertLast = Time[0]; } } return; } // timeFrame == Period() for (i = limit - 1; i >= 0; i--) { // High-Low band BufferHigh[i] = High[iHighest(NULL, 0, MODE_HIGH, nPeriod, i + shiftHiLo)]; BufferLow[i] = Low[iLowest(NULL, 0, MODE_LOW, nPeriod, i + shiftHiLo)]; // Cetner line double hi = High[iHighest(NULL, 0, MODE_HIGH, nPeriod, i + shiftCenter)]; double lo = Low[iLowest(NULL, 0, MODE_LOW, nPeriod, i + shiftCenter)]; BufferCenter[i] = (hi + lo) * 0.5; // check High break if (High[i] > BufferHigh[i]) { BufferHighBreakLong[i] = BufferHigh[i]; } // check Low break if (Low[i] < BufferLow[i]) { BufferLowBreakShort[i] = BufferLow[i]; } // check Center cross double center2 = BufferCenter[i + 2]; double center1 = BufferCenter[i + 1]; double center0 = BufferCenter[i + 0]; double c2 = Close[i + 2]; double c1 = Close[i + 1]; if (c2 < center2 && c1 >= center1) { BufferCenterCrossLong[i] = center0; } if (c2 >= center2 && c1 < center1) { BufferCenterCrossShort[i] = center0; } } // alert if (bAlertBreak || bAlertCross) { bFire = ((bAlertBreak && (BufferHighBreakLong[0] != EMPTY_VALUE|| BufferLowBreakShort[0] != EMPTY_VALUE)) || (bAlertCross && (BufferCenterCrossLong[0] != EMPTY_VALUE|| BufferCenterCrossShort[0] != EMPTY_VALUE))); if (bFire && tAlertLast != Time[0]) { PlaySound("alert.wav"); tAlertLast = Time[0]; } } }