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Bulls Bears Power - source code
// Forex Strategy Builder
// Copyright (c) 2006 - 2008 Miroslav Popov - All rights reserved!
// http://forexsb.com
// info(a)forexsb.com
//
// Last changed on: 2006-09-01
using System;
using System.Drawing;
namespace Forex_Strategy_Builder
{
/// <summary>
/// indicator: Bulls Bears Power
/// </summary>
public class Bulls_Bears_Power : Indicator
{
/// <summary>
/// The default constructor.
/// </summary>
public Bulls_Bears_Power()
{
}
/// <summary>
/// Sets the default parameters for the designated slot type.
/// </summary>
/// <param name="slotType">The slot type.</param>
public Bulls_Bears_Power(SlotTypes slotType)
{
sIndicatorName = "Bulls Bears Power";
parameters = new IndicatorParam();
component = new IndicatorComp[] { };
bSeparatedChart = true;
bIsCalculated = false;
// 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 BBP rises",
"The BBP falls",
"The BBP is higher than the Level line",
"The BBP is lower than the Level line",
"The BBP crosses the Level line upward",
"The BBP crosses the Level line downward",
"The BBP changes its direction upward",
"The BBP 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 = 2;
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 Bulls Bears Power value";
// The NumericUpDown parameters.
parameters.NumParam[0].Caption = "Smoothing 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 smoothing of the Bulls Bears Power value";
parameters.NumParam[1].Caption = "Level";
parameters.NumParam[1].Value = 0;
parameters.NumParam[1].Min = -100;
parameters.NumParam[1].Max = 100;
parameters.NumParam[1].Point = 4;
parameters.NumParam[1].Enabled = true;
parameters.NumParam[1].ToolTip = "A critical level (for the appropriate logic)";
// 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 iPeriod = (int)parameters.NumParam[0].Value;
float fLevel = parameters.NumParam[1].Value;
int iPrvs = parameters.CheckParam[0].Checked ? 1 : 0;
// Calculation
int iFirstBar = iPeriod + 2;
float[] afMA = MovingAverage(iPeriod, 0, maMethod, Price(BasePrice.Close));
float[] afBulls = new float[Bars];
float[] afBears = new float[Bars];
float[] afBBP = new float[Bars];
for (int iBar = iPeriod; iBar < Bars; iBar++)
{
afBulls[iBar] = High[iBar] - afMA[iBar];
afBears[iBar] = Low[iBar] - afMA[iBar];
afBBP[iBar] = afBulls[iBar] + afBears[iBar];
}
// Saving the components
component = new IndicatorComp[3];
component[0] = new IndicatorComp();
component[0].CompName = "Bulls Bears Power";
component[0].DataType = IndComponentType.IndicatorValue;
component[0].ChartType = IndChartType.Line;
component[0].ChartColor = Color.RoyalBlue;
component[0].FirstBar = iFirstBar;
component[0].Value = afBBP;
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 BBP rises":
indLogic = IndicatorLogic.The_indicator_rises;
afSpecValue = new float[1] { 0f };
break;
case "The BBP falls":
indLogic = IndicatorLogic.The_indicator_falls;
afSpecValue = new float[1] { 0f };
break;
case "The BBP is higher than the Level line":
indLogic = IndicatorLogic.The_indicator_is_higher_than_the_level_line;
afSpecValue = new float[2] { fLevel, -fLevel };
break;
case "The BBP is lower than the Level line":
indLogic = IndicatorLogic.The_indicator_is_lower_than_the_level_line;
afSpecValue = new float[2] { fLevel, -fLevel };
break;
case "The BBP crosses the Level line upward":
indLogic = IndicatorLogic.The_indicator_crosses_the_level_line_upward;
afSpecValue = new float[2] { fLevel, -fLevel };
break;
case "The BBP crosses the Level line downward":
indLogic = IndicatorLogic.The_indicator_crosses_the_level_line_downward;
afSpecValue = new float[2] { fLevel, -fLevel };
break;
case "The BBP changes its direction upward":
indLogic = IndicatorLogic.The_indicator_changes_its_direction_upward;
afSpecValue = new float[1] { 0f };
break;
case "The BBP changes its direction downward":
indLogic = IndicatorLogic.The_indicator_changes_its_direction_downward;
afSpecValue = new float[1] { 0f };
break;
default:
break;
}
bIsCalculated = OscillatorLogic(iFirstBar, iPrvs, afBBP, fLevel, -fLevel, ref component[1], ref component[2], indLogic);
}
}
}
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