kline.java

一份java写的期货交易程序

// 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:   KLine.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 KLine extends IndicatorBase
{

    public static final int LineType_K = 0;
    public static final int LineType_USA = 1;
    public static final int LineType_POLY = 2;
    int m_iLineType;

    public KLine(IndicatorPos pos, int iLineType, int Precision)
    {
        super(pos, Precision);
        m_strIndicatorName = "KLine";
        m_iLineType = iLineType;
    }

    public void Paint(Graphics g, Rectangle rc, KLineData data[])
    {
        super.Paint(g, rc, data);
        GetMaxMin();
        DrawCoordinate(g, m_iPrecision);
        switch(m_iLineType)
        {
        case 2: // '\002'
            DrawPolyLine(g);
            break;

        case 1: // '\001'
            drawUSA(g);
            break;

        default:
            DrawKLine(g);
            break;
        }
    }

    public void Calculate()
    {
    }

    protected void GetMaxMin()
    {
        if(m_pos.m_Begin > m_pos.m_End)
        {
            m_max = 0.0F;
            m_min = 0.0F;
            return;
        }
        m_max = 0.0F;
        m_min = 1E+008F;
        for(int i = m_pos.m_Begin; i <= m_pos.m_End; i++)
            if(m_iLineType == 0 || m_iLineType == 1)
            {
                if(m_kData[i].highPrice > 0.0F)
                {
                    if(m_kData[i].highPrice > m_max)
                        m_max = m_kData[i].highPrice;
                    if(m_kData[i].lowPrice < m_min)
                        m_min = m_kData[i].lowPrice;
                }
            } else
            if(m_kData[i].closePrice > 0.0F)
            {
                if(m_kData[i].closePrice > m_max)
                    m_max = m_kData[i].closePrice;
                if(m_kData[i].closePrice < m_min)
                    m_min = m_kData[i].closePrice;
            }

    }

    private void DrawKLine(Graphics g)
    {
        int begin = m_pos.m_Begin;
        int end = m_pos.m_End;
        if(m_max - m_min == 0.0F || m_rc.height - m_iTextH <= 0)
            return;
        int width = m_pos.m_Ratio >= 3F ? (int)((m_pos.m_Ratio + 1.0F) / 3F) : 0;
        if(width % 2 == 0 && width > 0)
            width--;
        float valuex = (float)m_rc.x + m_pos.m_Ratio / 2.0F;
        float valuey = (m_max - m_min) / (float)(m_rc.height - m_iTextH);
        for(int i = begin; i <= end; i++)
        {
            int open = m_rc.y + m_iTextH + (int)((m_max - m_kData[i].openPrice) / valuey);
            int high = m_rc.y + m_iTextH + (int)((m_max - m_kData[i].highPrice) / valuey);
            int low = m_rc.y + m_iTextH + (int)((m_max - m_kData[i].lowPrice) / valuey);
            int close = m_rc.y + m_iTextH + (int)((m_max - m_kData[i].closePrice) / valuey);
            if(m_kData[i].openPrice == m_kData[i].closePrice)
            {
                g.setColor(HQApplet.rhColor.clKLineEqual);
                g.drawLine((int)valuex - width, open, (int)valuex + width, close);
                g.drawLine((int)valuex, high, (int)valuex, low);
            } else
            if(m_kData[i].openPrice > m_kData[i].closePrice)
            {
                g.setColor(HQApplet.rhColor.clKLineDown);
                g.drawLine((int)valuex, high, (int)valuex, low);
                g.fillRect((int)valuex - width, open, 2 * width + 1, close - open);
            } else
            {
                g.setColor(HQApplet.rhColor.clKLineUp);
                g.drawLine((int)valuex, high, (int)valuex, close);
                g.drawLine((int)valuex, open, (int)valuex, low);
                g.drawRect((int)valuex - width, close, 2 * width, open - close);
            }
            valuex += m_pos.m_Ratio;
        }

    }

    private void drawUSA(Graphics g)
    {
        int begin = m_pos.m_Begin;
        int end = m_pos.m_End;
        if(m_max - m_min == 0.0F || m_rc.height - m_iTextH <= 0)
            return;
        int width = m_pos.m_Ratio >= 3F ? (int)((m_pos.m_Ratio + 1.0F) / 3F) : 0;
        if(width % 2 == 0 && width > 0)
            width--;
        float valuex = (float)m_rc.x + m_pos.m_Ratio / 2.0F;
        float valuey = (m_max - m_min) / (float)(m_rc.height - m_iTextH);
        for(int i = begin; i <= end; i++)
        {
            int open = m_rc.y + m_iTextH + (int)((m_max - m_kData[i].openPrice) / valuey);
            int high = m_rc.y + m_iTextH + (int)((m_max - m_kData[i].highPrice) / valuey);
            int low = m_rc.y + m_iTextH + (int)((m_max - m_kData[i].lowPrice) / valuey);
            int close = m_rc.y + m_iTextH + (int)((m_max - m_kData[i].closePrice) / valuey);
            g.setColor(HQApplet.rhColor.clUSALine);
            g.drawLine((int)valuex, high, (int)valuex, low);
            g.drawLine((int)valuex - width, open, (int)valuex, open);
            g.drawLine((int)valuex + width + 1, close, (int)valuex, close);
            valuex += m_pos.m_Ratio;
        }

    }

    private void DrawPolyLine(Graphics g)
    {
        int begin = m_pos.m_Begin;
        int end = m_pos.m_End;
        if(m_max - m_min == 0.0F || m_rc.height - m_iTextH <= 0)
            return;
        int width = m_pos.m_Ratio >= 3F ? (int)((m_pos.m_Ratio + 1.0F) / 3F) : 0;
        if(width % 2 == 0 && width > 0)
            width--;
        float valuex = (float)m_rc.x + m_pos.m_Ratio / 2.0F;
        float valuey = (m_max - m_min) / (float)(m_rc.height - m_iTextH);
        g.setColor(HQApplet.rhColor.clPolyLine);
        int oldx = -1;
        int oldy = -1;
        for(int i = begin; i <= end; i++)
        {
            int close = m_rc.y + m_iTextH + (int)((m_max - m_kData[i].closePrice) / valuey);
            if(oldx != -1 && oldy != -1)
            {
                g.drawLine(oldx, oldy, (int)valuex, close);
                if((float)(oldy - close) > valuex - (float)oldx)
                {
                    g.drawLine(oldx - 1, oldy, (int)valuex - 1, close);
                    g.drawLine(oldx + 1, oldy, (int)valuex + 1, close);
                } else
                if((float)(close - oldy) > valuex - (float)oldx)
                {
                    g.drawLine(oldx - 1, oldy, (int)valuex - 1, close);
                    g.drawLine(oldx + 1, oldy, (int)valuex + 1, close);
                } else
                {
                    g.drawLine(oldx, oldy - 1, (int)valuex, close - 1);
                    g.drawLine(oldx, oldy + 1, (int)valuex, close + 1);
                }
            }
            oldx = (int)valuex;
            oldy = close;
            valuex += m_pos.m_Ratio;
        }

    }

    public void DrawCursor(Graphics g, int iPos)
    {
        int iIndex = m_pos.m_Begin + iPos;
        int y = (int)((float)(m_rc.y + m_iTextH) + ((m_max - m_kData[iIndex].closePrice) * (float)(m_rc.height - m_iTextH)) / (m_max - m_min));
        g.drawLine(m_rc.x, y, m_rc.x + m_rc.width, y);
    }
}