mirror of
https://github.com/reactos/reactos.git
synced 2024-07-12 23:55:07 +00:00
397 lines
9.6 KiB
C#
397 lines
9.6 KiB
C#
using System;
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using System.IO;
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using System.Text;
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using System.Collections;
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using HtmlHelp.ChmDecoding;
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namespace HtmlHelp
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{
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/// <summary>
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/// The class <c>IndexItem</c> implements an help-index item
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/// </summary>
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public sealed class IndexItem : IComparable
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{
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/// <summary>
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/// Internal member storing the keyword
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/// </summary>
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private string _keyWord = "";
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/// <summary>
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/// Internal member storing all associated information type strings
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/// </summary>
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private ArrayList _infoTypeStrings = new ArrayList();
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/// <summary>
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/// Internal member storing the flag if this is a see-also keyword
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/// </summary>
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private bool _isSeeAlso = false;
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/// <summary>
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/// Internal member storing the indent of the keyword
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/// </summary>
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private int _indent = 0;
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/// <summary>
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/// Internal member storing the last index of the keyword in the seperated list
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/// </summary>
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private int _charIndex = 0;
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/// <summary>
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/// Internal member storing the entry index
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/// </summary>
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private int _entryIndex = 0;
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/// <summary>
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/// Internal member storing an array of see-also values
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/// </summary>
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private string[] _seeAlso = new string[0];
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/// <summary>
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/// Internal member storing an array of topic offsets
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/// </summary>
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private int[] _nTopics = new int[0];
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/// <summary>
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/// Internal member storing the topics
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/// </summary>
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private ArrayList _Topics = null;
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/// <summary>
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/// Associated CHMFile instance
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/// </summary>
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private CHMFile _chmFile = null;
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/// <summary>
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/// Internal flag specifying the chm file path
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/// </summary>
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private string _chmFileName = "";
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/// <summary>
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/// Constructor of the class
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/// </summary>
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/// <param name="chmFile">associated CHMFile instance</param>
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/// <param name="keyWord">keyword</param>
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/// <param name="isSeeAlso">true if it is a see-also keyword</param>
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/// <param name="indent">indent of the entry</param>
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/// <param name="charIndex">char index of the last keyword in the separated list</param>
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/// <param name="entryIndex">index of the entry</param>
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/// <param name="seeAlsoValues">string array with see-also values</param>
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/// <param name="topicOffsets">integer array with topic offsets</param>
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internal IndexItem(CHMFile chmFile, string keyWord, bool isSeeAlso, int indent, int charIndex, int entryIndex, string[] seeAlsoValues, int[] topicOffsets)
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{
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_chmFile = chmFile;
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_chmFileName = _chmFile.ChmFilePath;
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_keyWord = keyWord;
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_isSeeAlso = isSeeAlso;
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_indent = indent;
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_charIndex = charIndex;
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_entryIndex = entryIndex;
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_seeAlso = seeAlsoValues;
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_nTopics = topicOffsets;
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}
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/// <summary>
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/// Standard constructor
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/// </summary>
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public IndexItem()
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{
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}
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#region Data dumping
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/// <summary>
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/// Dump the class data to a binary writer
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/// </summary>
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/// <param name="writer">writer to write the data</param>
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/// <param name="writeFileName">true if the chm filename should be written</param>
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internal void Dump(ref BinaryWriter writer, bool writeFileName)
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{
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int i=0;
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writer.Write(_keyWord);
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writer.Write(_isSeeAlso);
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writer.Write(_indent);
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if(writeFileName)
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writer.Write(_chmFileName);
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writer.Write(_infoTypeStrings.Count);
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for(i=0; i<_infoTypeStrings.Count; i++)
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writer.Write( (_infoTypeStrings[i]).ToString() );
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writer.Write(_seeAlso.Length);
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for(i=0; i<_seeAlso.Length; i++)
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{
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if(_seeAlso[i] == null)
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writer.Write("");
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else
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writer.Write( _seeAlso[i] );
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}
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writer.Write(Topics.Count);
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for(i=0; i<Topics.Count; i++)
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{
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IndexTopic topic = ((IndexTopic)(Topics[i]));
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topic.Dump(ref writer);
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}
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}
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/// <summary>
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/// Dump the class data to a binary writer
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/// </summary>
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/// <param name="writer">writer to write the data</param>
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internal void Dump(ref BinaryWriter writer)
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{
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Dump(ref writer, false);
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}
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/// <summary>
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/// Reads the object data from a dump store
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/// </summary>
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/// <param name="reader">reader to read the data</param>
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/// <param name="filesList">filelist from helpsystem</param>
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internal bool ReadDump(ref BinaryReader reader, ArrayList filesList)
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{
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int i=0;
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_keyWord = reader.ReadString();
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_isSeeAlso = reader.ReadBoolean();
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_indent = reader.ReadInt32();
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_chmFileName = reader.ReadString();
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foreach(CHMFile curFile in filesList)
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{
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if(curFile.ChmFilePath == _chmFileName)
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{
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_chmFile = curFile;
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break;
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}
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}
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if(_chmFile==null)
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return false;
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int nCnt = reader.ReadInt32();
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for(i=0; i<nCnt; i++)
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{
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string sIT = reader.ReadString();
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_infoTypeStrings.Add(sIT);
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}
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nCnt = reader.ReadInt32();
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_seeAlso = new string[nCnt];
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for(i=0; i<nCnt; i++)
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{
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_seeAlso[i] = reader.ReadString();
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}
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nCnt = reader.ReadInt32();
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for(i=0; i<nCnt; i++)
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{
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IndexTopic topic = new IndexTopic("","","","");
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topic.SetChmInfo( _chmFile.CompileFile, _chmFile.ChmFilePath);
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topic.AssociatedFile = _chmFile;
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topic.ReadDump(ref reader);
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Topics.Add(topic);
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}
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return true;
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}
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/// <summary>
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/// Reads the object data from a dump store
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/// </summary>
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/// <param name="reader">reader to read the data</param>
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internal void ReadDump(ref BinaryReader reader)
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{
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int i=0;
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_keyWord = reader.ReadString();
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_isSeeAlso = reader.ReadBoolean();
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_indent = reader.ReadInt32();
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int nCnt = reader.ReadInt32();
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for(i=0; i<nCnt; i++)
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{
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string sIT = reader.ReadString();
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_infoTypeStrings.Add(sIT);
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}
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nCnt = reader.ReadInt32();
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_seeAlso = new string[nCnt];
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for(i=0; i<nCnt; i++)
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{
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_seeAlso[i] = reader.ReadString();
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}
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nCnt = reader.ReadInt32();
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for(i=0; i<nCnt; i++)
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{
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IndexTopic topic = new IndexTopic("","","","");
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topic.AssociatedFile = _chmFile;
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topic.SetChmInfo( _chmFile.CompileFile, _chmFile.ChmFilePath);
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topic.ReadDump(ref reader);
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Topics.Add(topic);
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}
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}
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#endregion
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/// <summary>
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/// Implements the compareto method which allows sorting.
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/// </summary>
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/// <param name="obj">object to compare to</param>
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/// <returns>See <see cref="System.IComparable">IComparable.CompareTo()</see></returns>
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public int CompareTo(object obj)
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{
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if( obj.GetType() == this.GetType() )
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{
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IndexItem cmp = (IndexItem)obj;
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return this.KeyWordPath.CompareTo( cmp.KeyWordPath );
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}
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return 0;
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}
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/// <summary>
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/// Gets/Sets the associated CHMFile instance
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/// </summary>
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internal CHMFile ChmFile
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{
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get { return _chmFile; }
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set { _chmFile = value; }
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}
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/// <summary>
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/// Gets the ArrayList which holds all information types/categories this item is associated
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/// </summary>
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internal ArrayList InfoTypeStrings
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{
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get { return _infoTypeStrings; }
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}
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/// <summary>
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/// Adds a see-also string to the index item and marks it as see also item
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/// </summary>
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/// <param name="seeAlsoString">see also string to add</param>
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internal void AddSeeAlso(string seeAlsoString)
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{
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string[] seeAlso = new string[ _seeAlso.Length +1 ];
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for(int i=0; i<_seeAlso.Length; i++)
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seeAlso[i] = _seeAlso[i];
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seeAlso[_seeAlso.Length] = seeAlsoString;
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_seeAlso = seeAlso;
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_isSeeAlso = true;
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}
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/// <summary>
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/// Gets/Sets the full keyword-path of this item ( ", " separated list)
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/// </summary>
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public string KeyWordPath
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{
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get { return _keyWord; }
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set { _keyWord = value; }
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}
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/// <summary>
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/// Gets the keyword of this item
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/// </summary>
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public string KeyWord
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{
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get
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{
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return _keyWord.Substring(_charIndex, _keyWord.Length-_charIndex);
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}
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}
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/// <summary>
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/// Gets the keyword of this item with prefixing indent spaces
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/// </summary>
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public string IndentKeyWord
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{
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get
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{
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string sKW = this.KeyWord;
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StringBuilder sb = new StringBuilder("",this.Indent*3 + sKW.Length);
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for(int i=0; i<this.Indent; i++)
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sb.Append(" ");
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sb.Append(sKW);
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return sb.ToString();
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}
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}
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/// <summary>
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/// Gets/Sets the see-also flag of this item
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/// </summary>
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public bool IsSeeAlso
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{
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get { return _isSeeAlso; }
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set { _isSeeAlso = value; }
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}
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/// <summary>
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/// Gets/Sets the listbox indent for this item
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/// </summary>
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public int Indent
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{
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get { return _indent; }
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set { _indent = value; }
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}
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/// <summary>
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/// Gets/Sets the character index of an indent keyword
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/// </summary>
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public int CharIndex
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{
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get { return _charIndex; }
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set { _charIndex = value; }
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}
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/// <summary>
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/// Gets the see-also values of this item
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/// </summary>
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public string[] SeeAlso
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{
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get { return _seeAlso; }
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}
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/// <summary>
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/// Gets an array with the associated topics
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/// </summary>
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public ArrayList Topics
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{
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get
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{
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if( _Topics == null )
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{
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if(IsSeeAlso)
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{
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_Topics = new ArrayList();
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}
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else
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{
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if( (_chmFile != null) && (_chmFile.TopicsFile != null) )
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{
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_Topics = new ArrayList();
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for(int i=0; i<_nTopics.Length; i++)
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{
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IndexTopic newTopic = IndexTopic.FromTopicEntry((TopicEntry)_chmFile.TopicsFile.TopicTable[ _nTopics[i] ]);
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newTopic.AssociatedFile = _chmFile;
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_Topics.Add( newTopic );
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}
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}
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else
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{
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_Topics = new ArrayList();
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}
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}
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}
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return _Topics;
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}
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}
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}
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}
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