package jxl.biff.formula;

import jxl.biff.IntegerHelper;
import jxl.biff.WorkbookMethods;

class NameRange extends Operand implements ParsedThing {
  private WorkbookMethods nameTable;
  
  private String name;
  
  private int index;
  
  public NameRange(WorkbookMethods nt) {
    this.nameTable = nt;
  }
  
  public NameRange(String nm, WorkbookMethods nt) throws FormulaException {
    this.name = nm;
    this.nameTable = nt;
    this.index = this.nameTable.getNameIndex(this.name);
    if (this.index < 0)
      throw new FormulaException(FormulaException.cellNameNotFound, this.name); 
    this.index++;
  }
  
  public int read(byte[] data, int pos) {
    this.index = IntegerHelper.getInt(data[pos], data[pos + 1]);
    this.name = this.nameTable.getName(this.index - 1);
    return 4;
  }
  
  byte[] getBytes() {
    byte[] data = new byte[5];
    data[0] = Token.NAMED_RANGE.getCode();
    IntegerHelper.getTwoBytes(this.index, data, 1);
    return data;
  }
  
  public void getString(StringBuffer buf) {
    buf.append(this.name);
  }
}