mirror of
https://github.com/nsnail/spectre.console.git
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8261b25e5c
Fixes some tree rendering problems where lines were not properly drawn at some levels during some circumstances. * Change the API back to only allow one root. * Now uses a stack based approach to rendering instead of recursion. * Removes the need for measuring the whole tree in advance. Leave this up to each child to render.
48 lines
1.5 KiB
C#
48 lines
1.5 KiB
C#
using System;
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namespace Spectre.Console
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{
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/// <summary>
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/// Contains extension methods for <see cref="TreeNode"/>.
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/// </summary>
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public static class TreeNodeExtensions
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{
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/// <summary>
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/// Expands the tree.
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/// </summary>
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/// <param name="node">The tree node.</param>
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/// <returns>The same instance so that multiple calls can be chained.</returns>
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public static TreeNode Expand(this TreeNode node)
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{
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return Expand(node, true);
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}
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/// <summary>
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/// Collapses the tree.
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/// </summary>
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/// <param name="node">The tree node.</param>
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/// <returns>The same instance so that multiple calls can be chained.</returns>
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public static TreeNode Collapse(this TreeNode node)
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{
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return Expand(node, false);
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}
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/// <summary>
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/// Sets whether or not the tree node should be expanded.
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/// </summary>
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/// <param name="node">The tree node.</param>
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/// <param name="expand">Whether or not the tree node should be expanded.</param>
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/// <returns>The same instance so that multiple calls can be chained.</returns>
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public static TreeNode Expand(this TreeNode node, bool expand)
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{
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if (node is null)
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{
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throw new ArgumentNullException(nameof(node));
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}
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node.Expanded = expand;
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return node;
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}
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}
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}
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