// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi 
// Source File Name:   KDJ.java

package gnnt.MEBS.HQApplet.Indicator;

import gnnt.MEBS.HQApplet.*;
import java.awt.Graphics;
import java.awt.Rectangle;

// Referenced classes of package gnnt.MEBS.HQApplet.Indicator:
//            IndicatorBase, IndicatorPos

public class KDJ extends IndicatorBase
{

    private final int m_iParam[] = {
        9, 3, 3
    };

    public KDJ(IndicatorPos pos, int Precision)
    {
        super(pos, Precision);
        m_strIndicatorName = "KDJ(" + m_iParam[0] + "," + m_iParam[1] + "," + m_iParam[2] + ")";
        m_strParamName = (new String[] {
            "K", "D", "J"
        });
        m_iPrecision = 2;
    }

    public void Paint(Graphics g, Rectangle rc, KLineData data[])
    {
        if(data == null || data.length == 0)
            return;
        super.Paint(g, rc, data);
        Calculate();
        m_max = 0.0F;
        m_min = 10000F;
        for(int i = 0; i < 3; i++)
            GetValueMaxMin(m_data[i], m_iParam[i]);

        DrawCoordinate(g, 2);
        for(int i = 0; i < m_iParam.length; i++)
            DrawLine(g, m_data[i], m_iParam[i], HQApplet.rhColor.clIndicator[i]);

    }

    public void Calculate()
    {
        m_data = new float[3][m_kData.length];
        int n1 = m_iParam[0];
        int n2 = m_iParam[1];
        int n3 = m_iParam[2];
        if(m_kData == null || n1 > m_kData.length || n1 < 1)
            return;
        float kvalue[] = m_data[0];
        float dvalue[] = m_data[1];
        float jvalue[] = m_data[2];
        n2 = n2 > 0 ? n2 : 3;
        n3 = n3 > 0 ? n3 : 3;
        float maxhigh = m_kData[n1 - 1].highPrice;
        float minlow = m_kData[n1 - 1].lowPrice;
        for(int j = n1 - 1; j >= 0; j--)
        {
            if(maxhigh < m_kData[j].highPrice)
                maxhigh = m_kData[j].highPrice;
            if(minlow < m_kData[j].lowPrice)
                minlow = m_kData[j].lowPrice;
        }

        float rsv;
        if(maxhigh <= minlow)
            rsv = 50F;
        else
            rsv = ((m_kData[n1 - 1].closePrice - minlow) / (maxhigh - minlow)) * 100F;
        float prersv;
        kvalue[n1 - 1] = dvalue[n1 - 1] = jvalue[n1 - 1] = prersv = rsv;
        for(int i = 0; i < n1; i++)
        {
            kvalue[i] = 0.0F;
            dvalue[i] = 0.0F;
            jvalue[i] = 0.0F;
        }

        for(int i = n1; i < m_kData.length; i++)
        {
            maxhigh = m_kData[i].highPrice;
            minlow = m_kData[i].lowPrice;
            for(int j = i - 1; j > i - n1; j--)
            {
                if(maxhigh < m_kData[j].highPrice)
                    maxhigh = m_kData[j].highPrice;
                if(minlow > m_kData[j].lowPrice)
                    minlow = m_kData[j].lowPrice;
            }

            if(maxhigh <= minlow)
            {
                rsv = prersv;
            } else
            {
                prersv = rsv;
                rsv = ((m_kData[i].closePrice - minlow) / (maxhigh - minlow)) * 100F;
            }
            kvalue[i] = (kvalue[i - 1] * (float)(n2 - 1)) / (float)n2 + rsv / (float)n2;
            dvalue[i] = kvalue[i] / (float)n3 + (dvalue[i - 1] * (float)(n3 - 1)) / (float)n3;
            jvalue[i] = 3F * kvalue[i] - 2.0F * dvalue[i];
        }

    }
}