58 lines
1.5 KiB
C#
58 lines
1.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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namespace KamiToolKit.Nodes;
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public class TreeListNode : SimpleComponentNode {
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private readonly SimpleComponentNode childContainer;
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private readonly List<TreeListCategoryNode> children = [];
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public ReadOnlyCollection<TreeListCategoryNode> CategoryNodes => children.AsReadOnly();
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public TreeListNode() {
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childContainer = new SimpleComponentNode();
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childContainer.AttachNode(this);
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}
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public float CategoryVerticalSpacing { get; set; } = 4.0f;
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public Action<float>? OnLayoutUpdate { get; set; }
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protected override void OnSizeChanged() {
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base.OnSizeChanged();
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childContainer.Width = Width;
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}
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public void AddCategoryNode(TreeListCategoryNode node) {
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RefreshLayout();
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children.Add(node);
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node.NodeId = (uint)children.Count + 1;
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node.Width = childContainer.Width;
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node.Y = childContainer.Height;
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node.AttachNode(childContainer);
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node.ParentTreeListNode = this;
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childContainer.Height += node.Height + CategoryVerticalSpacing;
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}
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public void RefreshLayout() {
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childContainer.Height = 0.0f;
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foreach (var child in children) {
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if (!child.IsVisible) continue;
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child.Y = childContainer.Height;
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childContainer.Height += child.Height + CategoryVerticalSpacing;
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child.UpdateChildrenNodeId();
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}
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OnLayoutUpdate?.Invoke(childContainer.Height);
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}
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}
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