public SfAudioSelection ExpandSelectionAround(SfAudioSelection selection, long tryExpandBy)
{
SfAudioSelection newSelection = new SfAudioSelection(selection);
newSelection.Start -= tryExpandBy;
if (newSelection.Start < 0)
{
newSelection.Start = 0;
}
newSelection.Length += (2 * tryExpandBy);
if (SelectionHelper.GetSelectionEnd(newSelection) > _file.Length)
{
SelectionHelper.SetSelectionEnd(newSelection, _file.Length);
}
return(newSelection);
}
