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feat: depth-limited tree display for performance

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- MaxFullDisplayDepth=2: only show full tree up to level 2
- Beyond max depth, nodes only expand if they have an alias
- AliasNodeViewModel.Depth tracks tree depth
- Reduces loaded nodes for large models with deep unaliased branches
This commit is contained in:
tian 2026-05-31 17:28:05 +08:00
parent 7418fe28aa
commit cba8e3f3b7
2 changed files with 17 additions and 6 deletions
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3
src/UI/WPF/ViewModels/AliasNodeViewModel.cs
View File

@ -97,6 +97,9 @@ namespace NavisworksTransport.UI.WPF.ViewModels
set { _childCount = value; OnPropertyChanged(nameof(ChildCount)); OnPropertyChanged(nameof(HasChildren)); }
}
/// <summary>树深度（0=根）</summary>
public int Depth { get; set; }
/// <summary>是否有子节点</summary>
public bool HasChildren => ChildCount > 0;

20
src/UI/WPF/Views/AliasTreeControl.xaml.cs
View File

@ -33,6 +33,9 @@ namespace NavisworksTransport.UI.WPF.Views
private Autodesk.Navisworks.Api.ModelItem _currentSelectionItem;
private bool _built = false;
/// <summary>完整展示的最大层级深度（默认2层）</summary>
public int MaxFullDisplayDepth { get; set; } = 2;
// ============================================================
// 生命周期
// ============================================================
@ -278,7 +281,7 @@ namespace NavisworksTransport.UI.WPF.Views
var rootItem = model.RootItem;
if (rootItem != null)
{
var node = BuildNode(rootItem, aliasMap);
var node = BuildNode(rootItem, aliasMap, 0);
if (node != null)
rootNodes.Add(node);
}
@ -299,7 +302,7 @@ namespace NavisworksTransport.UI.WPF.Views
/// 递归构建节点树（主线程调用）
/// </summary>
private AliasNodeViewModel BuildNode(Autodesk.Navisworks.Api.ModelItem modelItem,
Dictionary<string, string> aliasMap)
Dictionary<string, string> aliasMap, int depth)
{
if (modelItem == null) return null;
@ -321,13 +324,18 @@ namespace NavisworksTransport.UI.WPF.Views
ModelItem = modelItem,
OriginalName = modelItem.DisplayName ?? "?",
Alias = alias,
ChildCount = modelItem.Children.Count()
ChildCount = modelItem.Children.Count(),
Depth = depth
};
_nodeMap[key] = node;
// 第一层放占位节点以显示展开箭头
if (node.ChildCount > 0)
// 深度限制：超过阈值且无别名 → 不展开子节点
bool hasChildren = node.ChildCount > 0;
if (hasChildren && depth >= MaxFullDisplayDepth && string.IsNullOrEmpty(alias))
hasChildren = false;
if (hasChildren)
{
node.Children.Add(new AliasNodeViewModel
{
@ -361,7 +369,7 @@ namespace NavisworksTransport.UI.WPF.Views
foreach (var childItem in item.Children)
{
var childNode = BuildNode(childItem, aliasMap);
var childNode = BuildNode(childItem, aliasMap, parentNode.Depth + 1);
if (childNode != null)
{
childNode.Parent = parentNode;