static void DisposeTransformer(TextMateColoringTransformer transformer)
{
if (transformer == null)
{
return;
}
transformer.Dispose();
}
TextMateColoringTransformer GetOrCreateTransformer()
{
var transformer = _editor.TextArea.TextView.LineTransformers.OfType <TextMateColoringTransformer>().FirstOrDefault();
if (transformer is null)
{
transformer = new TextMateColoringTransformer(_editor.TextArea.TextView);
_editor.TextArea.TextView.LineTransformers.Add(transformer);
}
return(transformer);
}
static void DisposeTMModel(TMModel tmModel, TextMateColoringTransformer transformer)
{
if (tmModel == null)
{
return;
}
if (transformer != null)
{
tmModel.RemoveModelTokensChangedListener(transformer);
}
tmModel.Dispose();
}
void OnEditorOnDocumentChanged(object sender, EventArgs args)
{
try
{
DisposeEditorModel(_editorModel);
DisposeTMModel(_tmModel);
_editorModel = new TextEditorModel(_editor.TextArea.TextView, _editor.Document, _exceptionHandler);
_tmModel = new TMModel(_editorModel);
_tmModel.SetGrammar(_grammar);
_transformer = GetOrCreateTransformer();
_transformer.SetModel(_editor.Document, _tmModel);
_tmModel.AddModelTokensChangedListener(_transformer);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}