// MA Oscillator Indicator
// Last changed on 2009-05-05
// Part of Forex Strategy Builder & Forex Strategy Trader
// Website http://forexsb.com/
// This code or any part of it cannot be used in other applications without a permission.
// Copyright (c) 2006 - 2009 Miroslav Popov - All rights reserved.
using System;
namespace Forex_Strategy_Builder
{
/// <summary>
/// MA Oscillator Indicator
/// </summary>
public class MA_Oscillator : Indicator
{
/// <summary>
/// Sets the default indicator parameters for the designated slot type
/// </summary>
public MA_Oscillator(SlotTypes slotType)
{
// General properties
IndicatorName = "MA Oscillator";
PossibleSlots = SlotTypes.OpenFilter | SlotTypes.CloseFilter;
SeparatedChart = true;
// Setting up the indicator parameters
IndParam = new IndicatorParam();
IndParam.IndicatorName = IndicatorName;
IndParam.SlotType = slotType;
// The ComboBox parameters
IndParam.ListParam[0].Caption = "Logic";
IndParam.ListParam[0].ItemList = new string[]
{
"The MA Oscillator rises",
"The MA Oscillator falls",
"The MA Oscillator is higher than the Level line",
"The MA Oscillator is lower than the Level line",
"The MA Oscillator crosses the Level line upward",
"The MA Oscillator crosses the Level line downward",
"The MA Oscillator changes its direction upward",
"The MA Oscillator changes its direction downward"
};
IndParam.ListParam[0].Index = 0;
IndParam.ListParam[0].Text = IndParam.ListParam[0].ItemList[IndParam.ListParam[0].Index];
IndParam.ListParam[0].Enabled = true;
IndParam.ListParam[0].ToolTip = "Logic of application of the indicator.";
IndParam.ListParam[1].Caption = "Smoothing method";
IndParam.ListParam[1].ItemList = Enum.GetNames(typeof(MAMethod));
IndParam.ListParam[1].Index = (int)MAMethod.Simple;
IndParam.ListParam[1].Text = IndParam.ListParam[1].ItemList[IndParam.ListParam[1].Index];
IndParam.ListParam[1].Enabled = true;
IndParam.ListParam[1].ToolTip = "The method used for smoothing the both Moving Averages.";
IndParam.ListParam[2].Caption = "Base price";
IndParam.ListParam[2].ItemList = Enum.GetNames(typeof(BasePrice));
IndParam.ListParam[2].Index = (int)BasePrice.Close;
IndParam.ListParam[2].Text = IndParam.ListParam[2].ItemList[IndParam.ListParam[2].Index];
IndParam.ListParam[2].Enabled = true;
IndParam.ListParam[2].ToolTip = "The price the both Moving Averages are based on.";
// The NumericUpDown parameters
IndParam.NumParam[0].Caption = "Fast MA period";
IndParam.NumParam[0].Value = 13;
IndParam.NumParam[0].Min = 1;
IndParam.NumParam[0].Max = 200;
IndParam.NumParam[0].Enabled = true;
IndParam.NumParam[0].ToolTip = "The period of Fast MA.";
IndParam.NumParam[1].Caption = "Slow MA period";
IndParam.NumParam[1].Value = 21;
IndParam.NumParam[1].Min = 1;
IndParam.NumParam[1].Max = 200;
IndParam.NumParam[1].Enabled = true;
IndParam.NumParam[1].ToolTip = "The period of Slow MA.";
IndParam.NumParam[2].Caption = "Level";
IndParam.NumParam[2].Value = 0;
IndParam.NumParam[2].Min = -100;
IndParam.NumParam[2].Max = 100;
IndParam.NumParam[2].Point = 4;
IndParam.NumParam[2].Enabled = true;
IndParam.NumParam[2].ToolTip = "A critical level (for the appropriate logic).";
// The CheckBox parameters
IndParam.CheckParam[0].Caption = "Use previous bar value";
IndParam.CheckParam[0].Checked = PrepareUsePrevBarValueCheckBox(slotType);
IndParam.CheckParam[0].Enabled = true;
IndParam.CheckParam[0].ToolTip = "Use the indicator value from the previous bar.";
return;
}
/// <summary>
/// Calculates the indicator's components
/// </summary>
public override void Calculate(SlotTypes slotType)
{
// Reading the parameters
MAMethod maMethod = (MAMethod )IndParam.ListParam[1].Index;
BasePrice basePrice = (BasePrice)IndParam.ListParam[2].Index;
int iNFastMA = (int)IndParam.NumParam[0].Value;
int iNSlowMA = (int)IndParam.NumParam[1].Value;
double dLevel = IndParam.NumParam[2].Value;
int iPrvs = IndParam.CheckParam[0].Checked ? 1 : 0;
int iFirstBar = iNSlowMA + 2;
double[] adMAFast = MovingAverage(iNFastMA, 0, maMethod, Price(basePrice));
double[] adMASlow = MovingAverage(iNSlowMA, 0, maMethod, Price(basePrice));
double[] adMAOscillator = new double[Bars];
for (int iBar = iNSlowMA; iBar < Bars; iBar++)
adMAOscillator[iBar] = adMAFast[iBar] - adMASlow[iBar];
// Saving the components
Component = new IndicatorComp[3];
Component[0] = new IndicatorComp();
Component[0].CompName = "MA Oscillator";
Component[0].DataType = IndComponentType.IndicatorValue;
Component[0].ChartType = IndChartType.Histogram;
Component[0].FirstBar = iFirstBar;
Component[0].Value = adMAOscillator;
Component[1] = new IndicatorComp();
Component[1].ChartType = IndChartType.NoChart;
Component[1].FirstBar = iFirstBar;
Component[1].Value = new double[Bars];
Component[2] = new IndicatorComp();
Component[2].ChartType = IndChartType.NoChart;
Component[2].FirstBar = iFirstBar;
Component[2].Value = new double[Bars];
// Sets the Component's type
if (slotType == SlotTypes.OpenFilter)
{
Component[1].DataType = IndComponentType.AllowOpenLong;
Component[1].CompName = "Is long entry allowed";
Component[2].DataType = IndComponentType.AllowOpenShort;
Component[2].CompName = "Is short entry allowed";
}
else if (slotType == SlotTypes.CloseFilter)
{
Component[1].DataType = IndComponentType.ForceCloseLong;
Component[1].CompName = "Close out long position";
Component[2].DataType = IndComponentType.ForceCloseShort;
Component[2].CompName = "Close out short position";
}
// Calculation of the logic
IndicatorLogic indLogic = IndicatorLogic.It_does_not_act_as_a_filter;
switch (IndParam.ListParam[0].Text)
{
case "The MA Oscillator rises":
indLogic = IndicatorLogic.The_indicator_rises;
SpecialValues = new double[1] { 0 };
break;
case "The MA Oscillator falls":
indLogic = IndicatorLogic.The_indicator_falls;
SpecialValues = new double[1] { 0 };
break;
case "The MA Oscillator is higher than the Level line":
indLogic = IndicatorLogic.The_indicator_is_higher_than_the_level_line;
SpecialValues = new double[2] { dLevel, -dLevel };
break;
case "The MA Oscillator is lower than the Level line":
indLogic = IndicatorLogic.The_indicator_is_lower_than_the_level_line;
SpecialValues = new double[2] { dLevel, -dLevel };
break;
case "The MA Oscillator crosses the Level line upward":
indLogic = IndicatorLogic.The_indicator_crosses_the_level_line_upward;
SpecialValues = new double[2] { dLevel, -dLevel };
break;
case "The MA Oscillator crosses the Level line downward":
indLogic = IndicatorLogic.The_indicator_crosses_the_level_line_downward;
SpecialValues = new double[2] { dLevel, -dLevel };
break;
case "The MA Oscillator changes its direction upward":
indLogic = IndicatorLogic.The_indicator_changes_its_direction_upward;
SpecialValues = new double[1] { 0 };
break;
case "The MA Oscillator changes its direction downward":
indLogic = IndicatorLogic.The_indicator_changes_its_direction_downward;
SpecialValues = new double[1] { 0 };
break;
default:
break;
}
OscillatorLogic(iFirstBar, iPrvs, adMAOscillator, dLevel, -dLevel, ref Component[1], ref Component[2], indLogic);
return;
}
/// <summary>
/// Sets the indicator logic description
/// </summary>
public override void SetDescription(SlotTypes slotType)
{
string sLevelLong = (IndParam.NumParam[2].Value == 0 ? "0" : IndParam.NumParam[2].ValueToString);
string sLevelShort = (IndParam.NumParam[2].Value == 0 ? "0" : "-" + IndParam.NumParam[2].ValueToString);
EntryFilterLongDescription = "the " + ToString() + " ";
EntryFilterShortDescription = "the " + ToString() + " ";
ExitFilterLongDescription = "the " + ToString() + " ";
ExitFilterShortDescription = "the " + ToString() + " ";
switch (IndParam.ListParam[0].Text)
{
case "The MA Oscillator rises":
EntryFilterLongDescription += "rises";
EntryFilterShortDescription += "falls";
ExitFilterLongDescription += "rises";
ExitFilterShortDescription += "falls";
break;
case "The MA Oscillator falls":
EntryFilterLongDescription += "falls";
EntryFilterShortDescription += "rises";
ExitFilterLongDescription += "falls";
ExitFilterShortDescription += "rises";
break;
case "The MA Oscillator is higher than the Level line":
EntryFilterLongDescription += "is higher than the Level " + sLevelLong;
EntryFilterShortDescription += "is lower than the Level " + sLevelShort;
ExitFilterLongDescription += "is higher than the Level " + sLevelLong;
ExitFilterShortDescription += "is lower than the Level " + sLevelShort;
break;
case "The MA Oscillator is lower than the Level line":
EntryFilterLongDescription += "is lower than the Level " + sLevelLong;
EntryFilterShortDescription += "is higher than the Level " + sLevelShort;
ExitFilterLongDescription += "is lower than the Level " + sLevelLong;
ExitFilterShortDescription += "is higher than the Level " + sLevelShort;
break;
case "The MA Oscillator crosses the Level line upward":
EntryFilterLongDescription += "crosses the Level " + sLevelLong + " upward";
EntryFilterShortDescription += "crosses the Level " + sLevelShort + " downward";
ExitFilterLongDescription += "crosses the Level " + sLevelLong + " upward";
ExitFilterShortDescription += "crosses the Level " + sLevelShort + " downward";
break;
case "The MA Oscillator crosses the Level line downward":
EntryFilterLongDescription += "crosses the Level " + sLevelLong + " downward";
EntryFilterShortDescription += "crosses the Level " + sLevelShort + " upward";
ExitFilterLongDescription += "crosses the Level " + sLevelLong + " downward";
ExitFilterShortDescription += "crosses the Level " + sLevelShort + " upward";
break;
case "The MA Oscillator changes its direction upward":
EntryFilterLongDescription += "changes its direction upward";
EntryFilterShortDescription += "changes its direction downward";
ExitFilterLongDescription += "changes its direction upward";
ExitFilterShortDescription += "changes its direction downward";
break;
case "The MA Oscillator changes its direction downward":
EntryFilterLongDescription += "changes its direction downward";
EntryFilterShortDescription += "changes its direction upward";
ExitFilterLongDescription += "changes its direction downward";
ExitFilterShortDescription += "changes its direction upward";
break;
default:
break;
}
return;
}
/// <summary>
/// Indicator to string
/// </summary>
public override string ToString()
{
string sString = IndicatorName +
(IndParam.CheckParam[0].Checked ? "* (" : " (") +
IndParam.ListParam[1].Text + ", " + // Method
IndParam.ListParam[2].Text + ", " + // Price
IndParam.NumParam[0].ValueToString + ", " + // Fast MA period
IndParam.NumParam[1].ValueToString + ")"; // Slow MA period
return sString;
}
}
}