/// <summary>
/// Sets the tree guide line appearance.
/// </summary>
/// <param name="tree">The tree.</param>
/// <param name="guide">The tree guide lines to use.</param>
/// <returns>The same instance so that multiple calls can be chained.</returns>
public static Tree Guide(this Tree tree, TreeGuide guide)
{
if (tree is null)
{
throw new ArgumentNullException(nameof(tree));
}
tree.Guide = guide;
return(tree);
}
/// <summary>
/// Gets the safe border for a border.
/// </summary>
/// <param name="guide">The tree guide to get the safe version for.</param>
/// <param name="safe">Whether or not to return the safe border.</param>
/// <returns>The safe border if one exist, otherwise the original border.</returns>
public static TreeGuide GetSafeTreeGuide(this TreeGuide guide, bool safe)
{
if (guide is null)
{
throw new ArgumentNullException(nameof(guide));
}
if (safe && guide.SafeTreeGuide != null)
{
return(guide.SafeTreeGuide);
}
return(guide);
}
