BN089-BS开发框架MVC4版/source20131023/Zephyr.Net/Zephyr.Utils/Document/Excel/NPOI/SS/Formula/PTG/AttrPtg.cs

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/* ====================================================================
   Licensed to the Apache Software Foundation (ASF) Under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for Additional information regarding copyright ownership.
   The ASF licenses this file to You Under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed Under the License is distributed on an "AS Is" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations Under the License.
==================================================================== */

namespace Zephyr.Utils.NPOI.SS.Formula.PTG
{
    using System;
    using System.Text;
    using Zephyr.Utils.NPOI.Util;
    using Zephyr.Utils.NPOI.HSSF.Record;
    


    /**
     * "Special Attributes"
     * This seems to be a Misc Stuff and Junk record.  One function it serves Is
     * in SUM functions (i.e. SUM(A1:A3) causes an area PTG then an ATTR with the SUM option Set)
     * @author  andy
     * @author Jason Height (jheight at chariot dot net dot au)
     */
    public class AttrPtg : ControlPtg
    {
        public const byte sid = 0x19;
        private static int SIZE = 4;
        private byte field_1_options;
        private short field_2_data;

        /** only used for tAttrChoose: table of offsets to starts of args */
        private int[] _jumpTable;
        /** only used for tAttrChoose: offset to the tFuncVar for CHOOSE() */
        private int _chooseFuncOffset;

        // flags 'volatile' and 'space', can be combined.  
        // OOO spec says other combinations are theoretically possible but not likely to occur.
        private static BitField semiVolatile = BitFieldFactory.GetInstance(0x01);
        private static BitField optiIf = BitFieldFactory.GetInstance(0x02);
        private static BitField optiChoose = BitFieldFactory.GetInstance(0x04);
        private static BitField optiSkip = BitFieldFactory.GetInstance(0x08); // skip
        private static BitField optiSum = BitFieldFactory.GetInstance(0x10);
        private static BitField baxcel = BitFieldFactory.GetInstance(0x20); // 'assignment-style formula in a macro sheet'
        private static BitField space = BitFieldFactory.GetInstance(0x40);

        public static AttrPtg SUM = new AttrPtg(0x0010, 0, null, -1);

        public class SpaceType
        {
            /** 00H = Spaces before the next token (not allowed before tParen token) */