/// <summary>
/// Property helper for Files & WordFiles, ensures the data retrieved
/// from those two properties is 'in sync'
/// </summary>
private void PrepareForSerialization()
{
if (_SerializePreparationDone) return;
_FileList = new List<File>();
_WordfileArray = new CatalogWordFile[_Index.Count];
Word[] wordArray = new Word[_Index.Count];
_Index.Values.CopyTo(wordArray, 0);
// go through all the words
for (int i = 0; i < wordArray.Length; i++)
{
// first, add all files to the 'flist' collection
foreach (File f in wordArray[i].Files)
{
if (!_FileList.Contains(f))
{
_FileList.Add(f);
}
}
// now go through again and use the indexes
CatalogWordFile wf = new CatalogWordFile();
wf.Text = wordArray[i].Text;
foreach (File f in wordArray[i].Files)
{
wf.FileIds.Add(_FileList.IndexOf(f));
}
_WordfileArray[i] = wf;
}
_SerializePreparationDone = true;
}
/// <summary>
/// Add a new Word/File pair to the Catalog
/// </summary>
public bool Add(string word, File infile, int position)
{
// ### Make sure the Word object is in the index ONCE only
if (_Index.ContainsKey(word))
{
Word theword = (Word)_Index[word]; // add this file reference to the Word
theword.Add(infile, position);
}
else
{
Word theword = new Word(word, infile, position); // create a new Word object
_Index.Add(word, theword);
}
_SerializePreparationDone = false; // adding to the catalog invalidates 'serialization preparation'
return true;
}