// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) 
// Source File Name:   C:\Sergey\Java\Plota\PanelSrc.java

import java.awt.*;
import java.util.StringTokenizer;

class PanelSrc extends TextField
{

    PanelSrc(Calca applet)
    {
        m_pszX = 300;
        m_pszY = 200;
        m_Line = new String[50];
        m_Applet = applet;
        setEditable(true);
        setFont(new Font("Helvetica", 1, 12));
        clear();
//        String str = new String("y=sin(300*x)^2/(1+(x-5)^2)");
        String str = new String("");
        m_Line[m_iLine] = new String(str);
        m_iLine = (m_iLine + 1) % 50;
        m_Line[m_iLine] = new String(str);
        setText(m_Line[m_iLine]);
        setText(str);
    }

    public boolean keyDown(Event evt, int key)
    {
        switch(key)
        {
        case 1004: 
            if(m_scroLine > 0)
                m_scroLine--;
            setText(m_Line[m_scroLine]);
            return true;

        case 1005: 
            if(m_scroLine < m_lastLine)
                m_scroLine++;
            setText(m_Line[m_scroLine]);
            return true;
        }
        return false;
    }

    private void clear()
    {
        m_iLine = 0;
        int i = 0;
        do
            m_Line[i] = null;
        while(++i < 50);
        m_Line[m_iLine] = new String("");
        setText(m_Line[m_iLine]);
    }

    private void clearOut()
    {
        m_Applet.clearOut();
    }

    private void printlnOut(String str)
    {
        m_Applet.printlnOut(str);
    }

    private void println(String str)
    {
        setText(str);
    }

    public boolean action(Event event, Object o)
    {
        m_Applet.processLine(getText());
        String str = getText();
        if(m_iLine != 0 && str.equals(m_Line[m_iLine - 1]))
        {
            setText("");
        } else
        {
            m_Line[m_iLine] = new String(str);
            m_iLine = (m_iLine + 1) % 50;
            m_Line[m_iLine] = new String("");
            setText(m_Line[m_iLine]);
        }
        m_lastLine = m_scroLine = m_iLine;
        return false;
    }

    private Calca m_Applet;
    private int m_pszX;
    private int m_pszY;
    private StringTokenizer m_StrTok;
    private static final int NUMLINE = 50;
    private static final int LENLINE = 80;
    private String m_Line[];
    private int m_iLine;
    private int m_lastLine;
    private int m_scroLine;
}