protected void InvalidateView(bool updateSelectionInfo = true)
{
// Avalonia InvalidateVisual raises no "OnPaint" events (HandlePaint raised on resize only).
// So we use a render thread:
//RedrawMainImage();
// temperament measure slider move is slow
Avalonia.Threading.Dispatcher.UIThread.InvokeAsync(RedrawMainImage);
if (updateSelectionInfo)
{
_textBoxSelectionInfo.Text = _gridDrawer.FormatSelectionInfo();
}
}