sharedformulacellreference.java

实现JAVA界面的代码GWT

// 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:   SharedFormulaCellReference.java

package jxl.biff.formula;

import jxl.Cell;
import jxl.biff.CellReferenceHelper;
import jxl.biff.IntegerHelper;

// Referenced classes of package jxl.biff.formula:
//            Operand, ParsedThing, Token

class SharedFormulaCellReference extends Operand
    implements ParsedThing
{

    private boolean columnRelative;
    private boolean rowRelative;
    private int column;
    private int row;
    private Cell relativeTo;

    public SharedFormulaCellReference(Cell rt)
    {
        relativeTo = rt;
    }

    public int read(byte data[], int pos)
    {
        row = IntegerHelper.getShort(data[pos], data[pos + 1]);
        int columnMask = IntegerHelper.getInt(data[pos + 2], data[pos + 3]);
        column = (byte)(columnMask & 0xff);
        columnRelative = (columnMask & 0x4000) != 0;
        rowRelative = (columnMask & 0x8000) != 0;
        if(columnRelative)
            column = relativeTo.getColumn() + column;
        if(rowRelative)
            row = relativeTo.getRow() + row;
        return 4;
    }

    public int getColumn()
    {
        return column;
    }

    public int getRow()
    {
        return row;
    }

    public void getString(StringBuffer buf)
    {
        CellReferenceHelper.getCellReference(column, row, buf);
    }

    byte[] getBytes()
    {
        byte data[] = new byte[5];
        data[0] = Token.REF.getCode();
        IntegerHelper.getTwoBytes(row, data, 1);
        int columnMask = column;
        if(columnRelative)
            columnMask |= 0x4000;
        if(rowRelative)
            columnMask |= 0x8000;
        IntegerHelper.getTwoBytes(columnMask, data, 3);
        return data;
    }
}