public void Detach()
{
if (TextBox == null)
{
return;
}
HideStatementCompletionForm();
if (_cancellationTokenSource != null)
{
_cancellationTokenSource.Cancel();
_cancellationTokenSource = null;
}
_proteinMatcher = null;
if (null != _proteomeDb)
{
_proteomeDb.Dispose();
_proteomeDb = null;
}
TextBox.KeyDown -= TextBox_KeyDown;
TextBox.TextChanged -= TextBox_TextChanged;
TextBox.GotFocus -= TextBox_GotFocus;
TextBox.LostFocus -= TextBox_LostFocus;
TextBox.LocationChanged -= TextBox_LocationChanged;
TextBox = null;
}
/// <summary>
/// When the text in the editTextBox changes, fire off the query to populate the statement completion popup.
/// </summary>
private void DoStatementCompletion()
{
if (DisableCompletion)
{
return;
}
String searchText = TextBox.Text;
if (searchText.Length == 0)
{
HideStatementCompletionForm();
return;
}
if (_proteinMatcherLast != null)
{
//if (_proteinMatcherLast.Settings.SearchText == searchText)
//{
// // Query is already executing for the text that the user typed: no work to do now.
// return;
//}
if (searchText.StartsWith(_proteinMatcherLast.Settings.SearchText))
{
// If the new text is just longer than the previous text, see if we can just refine the results
// of the previous query.
var results = _proteinMatcherLast.GetMatches();
var newResults = new List <ProteinMatch>();
if (results != null)
{
var oldSettings = _proteinMatcherLast.Settings;
var newSettings = new ProteinMatchSettings(oldSettings.ProteomeDbPath, oldSettings.Protease, MatchTypes, searchText);
newResults.AddRange(RefineMatches(results, newSettings));
}
if (newResults.Count == 0)
{
// Nothing from the previous query matches: hide the statement completion form.
HideStatementCompletionForm();
_proteinMatcherLast = null;
}
else
{
// Display the refined results: we'll still fire off another query to see if we get better results.
DisplayResultsNow(newResults, _proteinMatcherLast.MaxResults);
}
}
}
if (_proteinMatcher != null)
{
_proteinMatcher.Cancel();
_proteinMatcher = null;
}
var settings = CreateProteinMatchSettings(_documentUiContainer.DocumentUI, MatchTypes, searchText);
if (settings != null)
{
_proteinMatcher = new ProteinMatchQuery(settings);
_proteinMatcher.BeginExecute(DisplayResults);
}
}
/// <summary>
/// Called on a background thread when the statement completion query has some results to display.
/// </summary>
private void DisplayResults(ProteinMatchQuery proteinMatchQuery)
{
if (TextBox == null || TextBox.IsDisposed)
{
return;
}
TextBox.BeginInvoke(new Action <ProteinMatchQuery>(DisplayResultsNow), proteinMatchQuery);
}
/// <summary>
/// Updates the StatementCompletion popup to show the list of matching results.
/// </summary>
private void DisplayResultsNow(ProteinMatchQuery proteinMatchQuery)
{
if (proteinMatchQuery != _proteinMatcher)
{
return;
}
DisplayResultsNow(proteinMatchQuery.GetMatches(), proteinMatchQuery.MaxResults);
_proteinMatcherLast = proteinMatchQuery;
}
