MACD 4 CZ.mq4

//+------------------------------------------------------------------+
//| MACD_4CZ Custom MACD.mq4 |
//| Copyright 2004, MetaQuotes Software Corp. |
//| mod. from ASilver MACD534 http://www.metaquotes.net/ik |
//| MACD_4CZ 4colors up/dn over/under zero; www.forexTSD.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2004, MetaQuotes Software Corp."
#property link "http://www.metaquotes.net/"

//---- indicator settings
#property indicator_separate_window
#property indicator_buffers 4
#property indicator_color1 LimeGreen
#property indicator_color2 DarkGreen
#property indicator_color3 Red
#property indicator_color4 Maroon
#property indicator_width1 2
#property indicator_width2 2
#property indicator_width3 2
#property indicator_width4 2
#property indicator_level1 0.004
#property indicator_level2 0.002
#property indicator_level3 0.0004
#property indicator_level4 0
#property indicator_level5 -0.0004
#property indicator_level6 -0.002
#property indicator_level7 -0.004
#property indicator_levelcolor SlateGray
#property indicator_levelstyle 2

//---- indicator parameters
extern int FastEMA=5;
extern int SlowEMA=34;
//---- indicator buffers
double green_buffer[];
double DarkGreen_buffer[];
double red_buffer[];
double Maroon_buffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- drawing settings
SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_SOLID);
SetIndexBuffer(0,green_buffer);
//----
SetIndexStyle(1,DRAW_HISTOGRAM,STYLE_SOLID);
SetIndexBuffer(1,DarkGreen_buffer);
//----
SetIndexStyle(2,DRAW_HISTOGRAM,STYLE_SOLID);
SetIndexBuffer(2,red_buffer);
//----
SetIndexStyle(3,DRAW_HISTOGRAM,STYLE_SOLID);
SetIndexBuffer(3,Maroon_buffer);
//----

IndicatorDigits(Digits+1);
//---- name for DataWindow and indicator subwindow label
string short_name="MACD("+FastEMA+","+SlowEMA+")";
IndicatorShortName(short_name);
SetIndexLabel(0,short_name);
SetIndexLabel(1,short_name);
SetIndexLabel(2,short_name);
SetIndexLabel(3,short_name);



//---- initialization done
return(0);
}
//+------------------------------------------------------------------+
//| Moving Averages Convergence/Divergence |
//+------------------------------------------------------------------+
int start()
{
double MACD;
int counted_bars=IndicatorCounted();
int i;
//---- check for possible errors
if(counted_bars<0) return(-1);
//---- last counted bar will be recounted
for (i = Bars - Max (counted_bars-1, 1); i>=0; i--) {
MACD=iMA(NULL,0,FastEMA,0,MODE_EMA,PRICE_MEDIAN,i)-
iMA(NULL,0,SlowEMA,0,MODE_EMA,PRICE_MEDIAN,i);
if(MACD>0) {
if ( ( (green_buffer[i+1] != 0) && (MACD >= green_buffer[i+1]) ) ||
( (DarkGreen_buffer[i+1] != 0) && (MACD > DarkGreen_buffer[i+1]) ) ) {
green_buffer[i] = MACD;
DarkGreen_buffer[i] = 0;
}
else {
green_buffer[i] = 0;
DarkGreen_buffer[i] = MACD;}
}
else {
if ( ( (red_buffer[i+1] != 0) && (MACD >= red_buffer[i+1]) ) ||
( (Maroon_buffer[i+1] != 0) && (MACD > Maroon_buffer[i+1]) ) ) {
red_buffer[i] = MACD;
Maroon_buffer[i] = 0;
}
else {
red_buffer[i] = 0;
Maroon_buffer[i] = MACD;
}
}
}
//---- done
return(0);
}

//+------------------------------------------------------------------+
int Max (int val1, int val2) {
if (val1 > val2) return(val1);
return(val2);
}