sharedformulaarea.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:   SharedFormulaArea.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 SharedFormulaArea extends Operand
    implements ParsedThing
{

    private int columnFirst;
    private int rowFirst;
    private int columnLast;
    private int rowLast;
    private boolean columnFirstRelative;
    private boolean rowFirstRelative;
    private boolean columnLastRelative;
    private boolean rowLastRelative;
    private Cell relativeTo;

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

    int getFirstColumn()
    {
        return columnFirst;
    }

    int getFirstRow()
    {
        return rowFirst;
    }

    int getLastColumn()
    {
        return columnLast;
    }

    int getLastRow()
    {
        return rowLast;
    }

    public int read(byte data[], int pos)
    {
        rowFirst = IntegerHelper.getShort(data[pos], data[pos + 1]);
        rowLast = IntegerHelper.getShort(data[pos + 2], data[pos + 3]);
        int columnMask = IntegerHelper.getInt(data[pos + 4], data[pos + 5]);
        columnFirst = columnMask & 0xff;
        columnFirstRelative = (columnMask & 0x4000) != 0;
        rowFirstRelative = (columnMask & 0x8000) != 0;
        if(columnFirstRelative)
            columnFirst = relativeTo.getColumn() + columnFirst;
        if(rowFirstRelative)
            rowFirst = relativeTo.getRow() + rowFirst;
        columnMask = IntegerHelper.getInt(data[pos + 6], data[pos + 7]);
        columnLast = columnMask & 0xff;
        columnLastRelative = (columnMask & 0x4000) != 0;
        rowLastRelative = (columnMask & 0x8000) != 0;
        if(columnLastRelative)
            columnLast = relativeTo.getColumn() + columnLast;
        if(rowLastRelative)
            rowLast = relativeTo.getRow() + rowLast;
        return 8;
    }

    public void getString(StringBuffer buf)
    {
        CellReferenceHelper.getCellReference(columnFirst, rowFirst, buf);
        buf.append(':');
        CellReferenceHelper.getCellReference(columnLast, rowLast, buf);
    }

    byte[] getBytes()
    {
        byte data[] = new byte[9];
        data[0] = Token.AREA.getCode();
        IntegerHelper.getTwoBytes(rowFirst, data, 1);
        IntegerHelper.getTwoBytes(rowLast, data, 3);
        IntegerHelper.getTwoBytes(columnFirst, data, 5);
        IntegerHelper.getTwoBytes(columnLast, data, 7);
        return data;
    }
}