/// <summary>
/// Gets the inlines which affect the typography of the TextBlock.
/// </summary>
private IEnumerable<(Inline inline, int start, int end)> GetEffectiveInlines()
{
if (UseInlinesFastPath)
{
yield break;
}
var start = 0;
foreach (var inline in Inlines.SelectMany(InlineExtensions.Enumerate))
{
if (inline.HasTypographicalEffectWithin(this))
{
yield return (inline, start, start + inline.GetText().Length);
}
if (inline is Run || inline is LineBreak)
{
start += inline.GetText().Length;
}
}
}
