private void ViewClosed(object sender, EventArgs e)
{
if (_codingConventionsCancellationTokenSource != default(CancellationTokenSource))
{
_codingConventionsCancellationTokenSource.Cancel();
}
_view.LayoutChanged -= OnViewLayoutChanged;
_view.Closed -= ViewClosed;
if (_settingsChanged != null)
{
_settingsChanged.PropertyChanged -= SettingsChanged;
_settingsChanged = null;
}
if (_guidelineBrush != null)
{
_guidelineBrush.BrushChanged -= GuidelineBrushChanged;
_guidelineBrush = null;
}
}
/// <summary>
/// Creates editor column guidelines
/// </summary>
/// <param name="view">The <see cref="IWpfTextView"/> upon which the adornment will be drawn</param>
/// <param name="settings">The guideline settings.</param>
/// <param name="guidelineBrush">The guideline brush.</param>
/// <param name="codingConventionsManager">The coding conventions manager for handling .editorconfig settings.</param>
/// <param name="telemetry">Telemetry interface.</param>
public ColumnGuideAdornment(IWpfTextView view, ITextEditorGuidesSettings settings, GuidelineBrush guidelineBrush, ICodingConventionsManager codingConventionsManager)
{
_view = view;
_guidelineBrush = guidelineBrush;
_guidelineBrush.BrushChanged += GuidelineBrushChanged;
_strokeParameters = StrokeParameters.FromBrush(_guidelineBrush.Brush);
if (codingConventionsManager != null && view.TryGetTextDocument(out var textDocument))
{
_codingConventionsCancellationTokenSource = new CancellationTokenSource();
var fireAndForgetTask = LoadGuidelinesFromEditorConfigAsync(codingConventionsManager, textDocument.FilePath);
}
InitializeGuidelines(settings.GuideLinePositionsInChars);
_view.LayoutChanged += OnViewLayoutChanged;
_settingsChanged = settings as INotifyPropertyChanged;
if (_settingsChanged != null)
{
_settingsChanged.PropertyChanged += SettingsChanged;
}
_view.Closed += ViewClosed;
}