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Oscillator of BBP - source code
// Forex Strategy Builder
// Copyright (c) 2006 - 2008 Miroslav Popov - All rights reserved!
// http://forexsb.com
// info(a)forexsb.com
//
// Last changed on: 2007-02-15
using System;
using System.Drawing;
namespace Forex_Strategy_Builder
{
/// <summary>
/// indicator: Oscillator of BBP
/// </summary>
public class Oscillator_of_BBP : Indicator
{
/// <summary>
/// The default constructor.
/// </summary>
public Oscillator_of_BBP()
{
}
/// <summary>
/// Sets the default parameters for the designated slot type.
/// </summary>
/// <param name="slotType">The slot type.</param>
public Oscillator_of_BBP(SlotTypes slotType)
{
sIndicatorName = "Oscillator of BBP";
parameters = new IndicatorParam();
component = new IndicatorComp[] { };
afSpecValue = new float[1] { 0f };
bSeparatedChart = true;
bIsCalculated = false;
typeOfIndicator = TypeOfIndicator.OscillatorOfIndicators;
// The indicator name.
parameters.IndicatorName = sIndicatorName;
// The slot type.
parameters.SlotType = slotType;
// The ComboBox parameters.
parameters.ListParam[0].Caption = "Logic";
parameters.ListParam[0].ItemList = new string[]
{
"The Oscillator rises",
"The Oscillator falls",
"The Oscillator is higher than the zero line",
"The Oscillator is lower than the zero line",
"The Oscillator crosses the zero line upward",
"The Oscillator crosses the zero line downward",
"The Oscillator changes its direction upward",
"The Oscillator changes its direction downward"
};
parameters.ListParam[0].Index = 0;
parameters.ListParam[0].Text = parameters.ListParam[0].ItemList[parameters.ListParam[0].Index];
parameters.ListParam[0].Enabled = true;
parameters.ListParam[0].ToolTip = "Logic of application of the indicator";
parameters.ListParam[1].Caption = "Smoothing method";
parameters.ListParam[1].ItemList = Enum.GetNames(typeof(MAMethod));
parameters.ListParam[1].Index = 0;
parameters.ListParam[1].Text = parameters.ListParam[1].ItemList[parameters.ListParam[1].Index];
parameters.ListParam[1].Enabled = true;
parameters.ListParam[1].ToolTip = "The Moving Average method used for smoothing the BBP value";
// The NumericUpDown parameters.
parameters.NumParam[0].Caption = "First BBP period";
parameters.NumParam[0].Value = 13;
parameters.NumParam[0].Min = 1;
parameters.NumParam[0].Max = 200;
parameters.NumParam[0].Enabled = true;
parameters.NumParam[0].ToolTip = "The period of first BBP";
parameters.NumParam[1].Caption = "Second BBP period";
parameters.NumParam[1].Value = 21;
parameters.NumParam[1].Min = 1;
parameters.NumParam[1].Max = 200;
parameters.NumParam[1].Enabled = true;
parameters.NumParam[1].ToolTip = "The period of second BBP";
// The CheckBox parameters.
parameters.CheckParam[0].Caption = "Use previous bar value";
parameters.CheckParam[0].Checked = Data.Strategy.PrepareUsePrevBarValueCheckBox(slotType);
parameters.CheckParam[0].Enabled = true;
parameters.CheckParam[0].ToolTip = "Use the indicator value from the previous bar";
}
/// <summary>
/// Calculates the indicator's components.
/// </summary>
/// <param name="slotType">The slot type.</param>
public override void Calculate(SlotTypes slotType)
{
if (parameters.SlotType == SlotTypes.NotDefined) return;
// Reading the parameters
MAMethod maMethod = (MAMethod)Enum.GetValues(typeof(MAMethod)).GetValue(parameters.ListParam[1].Index);
int iPeriod1 = (int)parameters.NumParam[0].Value;
int iPeriod2 = (int)parameters.NumParam[1].Value;
int iPrvs = parameters.CheckParam[0].Checked ? 1 : 0;
// Calculation
int iFirstBar = iPeriod1 + iPeriod2 + 2;
float[] afIndicator1 = new float[Bars];
float[] afIndicator2 = new float[Bars];
float[] afOscllator = new float[Bars];
// ---------------------------------------------------------
Bulls_Bears_Power BBP1 = new Bulls_Bears_Power(slotType);
BBP1.IndParam.ListParam[1].Index = parameters.ListParam[1].Index;
BBP1.IndParam.NumParam[0].Value = parameters.NumParam[0].Value;
BBP1.IndParam.CheckParam[0].Checked = parameters.CheckParam[0].Checked;
BBP1.Calculate(slotType);
Bulls_Bears_Power BBP2 = new Bulls_Bears_Power(slotType);
BBP2.IndParam.ListParam[1].Index = parameters.ListParam[1].Index;
BBP2.IndParam.NumParam[0].Value = parameters.NumParam[1].Value;
BBP2.IndParam.CheckParam[0].Checked = parameters.CheckParam[0].Checked;
BBP2.Calculate(slotType);
afIndicator1 = BBP1.Component[0].Value;
afIndicator2 = BBP2.Component[0].Value;
// ----------------------------------------------------------
for (int iBar = iFirstBar; iBar < Bars; iBar++)
{
afOscllator[iBar] = afIndicator1[iBar] - afIndicator2[iBar];
}
// Saving the components
component = new IndicatorComp[3];
component[0] = new IndicatorComp();
component[0].CompName = "Histogram";
component[0].DataType = IndComponentType.IndicatorValue;
component[0].ChartType = IndChartType.Histogram;
component[0].FirstBar = iFirstBar;
component[0].Value = afOscllator;
component[1] = new IndicatorComp();
component[1].ChartType = IndChartType.NoChart;
component[1].FirstBar = iFirstBar;
component[1].Value = new float[Bars];
component[2] = new IndicatorComp();
component[2].ChartType = IndChartType.NoChart;
component[2].FirstBar = iFirstBar;
component[2].Value = new float[Bars];
// Sets the component's type.
if (slotType == SlotTypes.OpenFilter)
{
component[1].DataType = IndComponentType.AllowOpenLong;
component[1].CompName = "Allows long positions opening";
component[2].DataType = IndComponentType.AllowOpenShort;
component[2].CompName = "Allows short positions opening";
}
else if (slotType == SlotTypes.CloseFilter)
{
component[1].DataType = IndComponentType.ForceCloseLong;
component[1].CompName = "Forces long positions closing";
component[2].DataType = IndComponentType.ForceCloseShort;
component[2].CompName = "Forces short positions closing";
}
// Calculation of the logic.
IndicatorLogic indLogic = IndicatorLogic.It_does_not_act_as_a_filter;
switch (parameters.ListParam[0].Text)
{
case "The Oscillator rises":
indLogic = IndicatorLogic.The_indicator_rises;
break;
case "The Oscillator falls":
indLogic = IndicatorLogic.The_indicator_falls;
break;
case "The Oscillator is higher than the zero line":
indLogic = IndicatorLogic.The_indicator_is_higher_than_the_level_line;
break;
case "The Oscillator is lower than the zero line":
indLogic = IndicatorLogic.The_indicator_is_lower_than_the_level_line;
break;
case "The Oscillator crosses the zero line upward":
indLogic = IndicatorLogic.The_indicator_crosses_the_level_line_upward;
break;
case "The Oscillator crosses the zero line downward":
indLogic = IndicatorLogic.The_indicator_crosses_the_level_line_downward;
break;
case "The Oscillator changes its direction upward":
indLogic = IndicatorLogic.The_indicator_changes_its_direction_upward;
break;
case "The Oscillator changes its direction downward":
indLogic = IndicatorLogic.The_indicator_changes_its_direction_downward;
break;
default:
break;
}
bIsCalculated = OscillatorLogic(iFirstBar, iPrvs, afOscllator, 0, 0, ref component[1], ref component[2], indLogic);
}
}
}
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