Leahnaya/FModel
1
0
Fork 0
mirror of https://github.com/4sval/FModel.git synced 2026-04-18 15:47:43 -05:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

Optimize Expand/Collapse for quicker layout

Browse Source
This commit is contained in:
Rusty Burchfield 2023-03-16 12:46:00 -07:00
parent b0db727426
commit f9f3eb9f6a
1 changed files with 39 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
FModel/ViewModels/Commands/MenuCommand.cs
View File

@ -1,4 +1,5 @@
using System.Diagnostics;
using System.Collections.Generic;
using System.Diagnostics;
using System.Threading;
using AdonisUI.Controls;
using FModel.Extensions;
@ -79,19 +80,13 @@ public class MenuCommand : ViewModelCommand<ApplicationViewModel>
case "ToolBox_Expand_All":
await ApplicationService.ThreadWorkerView.Begin(cancellationToken =>
{
foreach (var folder in contextViewModel.CUE4Parse.AssetsFolder.Folders)
{
LoopFolders(cancellationToken, folder, true);
}
SetFoldersIsExpanded(contextViewModel.CUE4Parse.AssetsFolder, true, cancellationToken);
});
break;
case "ToolBox_Collapse_All":
await ApplicationService.ThreadWorkerView.Begin(cancellationToken =>
{
foreach (var folder in contextViewModel.CUE4Parse.AssetsFolder.Folders)
{
LoopFolders(cancellationToken, folder, false);
}
SetFoldersIsExpanded(contextViewModel.CUE4Parse.AssetsFolder, false, cancellationToken);
});
break;
case TreeItem selectedFolder:
@ -101,15 +96,44 @@ public class MenuCommand : ViewModelCommand<ApplicationViewModel>
}
}
private void LoopFolders(CancellationToken cancellationToken, TreeItem parent, bool isExpanded)
private static void SetFoldersIsExpanded(AssetsFolderViewModel root, bool isExpanded, CancellationToken cancellationToken)
{
if (parent.IsExpanded != isExpanded)
LinkedList<TreeItem> nodes = new();
foreach (TreeItem folder in root.Folders)
{
parent.IsExpanded = isExpanded;
Thread.Yield();
nodes.AddLast(folder);
}
cancellationToken.ThrowIfCancellationRequested();
foreach (var f in parent.Folders) LoopFolders(cancellationToken, f, isExpanded);
LinkedListNode<TreeItem> current = nodes.First;
while (current != null)
{
TreeItem folder = current.Value;
// Collapse top-down (reduce layout updates)
if (!isExpanded)
{
folder.IsExpanded = isExpanded;
Thread.Yield();
cancellationToken.ThrowIfCancellationRequested();
}
foreach (TreeItem child in folder.Folders)
{
nodes.AddLast(child);
}
current = current.Next;
}
// Expand bottom-up (reduce layout updates)
if (isExpanded)
{
for (LinkedListNode<TreeItem> node = nodes.Last; node != null; node = node.Previous)
{
node.Value.IsExpanded = isExpanded;
Thread.Yield();
cancellationToken.ThrowIfCancellationRequested();
}
}
}
}