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enhance: reduce memory usage by commit detail view

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leo 2024-06-07 16:32:06 +08:00
parent 78c7168a46
commit bacc1c85ad
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7 changed files with 385 additions and 496 deletions
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125
src/Views/ChangeCollectionView.axaml.cs
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@ -9,6 +9,101 @@ using Avalonia.Interactivity;
namespace SourceGit.Views
{
public class ChangeTreeNode
{
public string FullPath { get; set; } = string.Empty;
public bool IsFolder { get; set; } = false;
public bool IsExpanded { get; set; } = false;
public Models.Change Change { get; set; } = null;
public List<ChangeTreeNode> Children { get; set; } = new List<ChangeTreeNode>();
public static List<ChangeTreeNode> Build(IList<Models.Change> changes, bool expanded)
{
var nodes = new List<ChangeTreeNode>();
var folders = new Dictionary<string, ChangeTreeNode>();
foreach (var c in changes)
{
var sepIdx = c.Path.IndexOf('/', StringComparison.Ordinal);
if (sepIdx == -1)
{
nodes.Add(new ChangeTreeNode()
{
FullPath = c.Path,
Change = c,
IsFolder = false,
IsExpanded = false
});
}
else
{
ChangeTreeNode lastFolder = null;
var start = 0;
while (sepIdx != -1)
{
var folder = c.Path.Substring(0, sepIdx);
if (folders.TryGetValue(folder, out var value))
{
lastFolder = value;
}
else if (lastFolder == null)
{
lastFolder = new ChangeTreeNode()
{
FullPath = folder,
IsFolder = true,
IsExpanded = expanded
};
folders.Add(folder, lastFolder);
InsertFolder(nodes, lastFolder);
}
else
{
var cur = new ChangeTreeNode()
{
FullPath = folder,
IsFolder = true,
IsExpanded = expanded
};
folders.Add(folder, cur);
InsertFolder(lastFolder.Children, cur);
lastFolder = cur;
}
start = sepIdx + 1;
sepIdx = c.Path.IndexOf('/', start);
}
lastFolder.Children.Add(new ChangeTreeNode()
{
FullPath = c.Path,
Change = c,
IsFolder = false,
IsExpanded = false
});
}
}
folders.Clear();
return nodes;
}
private static void InsertFolder(List<ChangeTreeNode> collection, ChangeTreeNode subFolder)
{
for (int i = 0; i < collection.Count; i++)
{
if (!collection[i].IsFolder)
{
collection.Insert(i, subFolder);
return;
}
}
collection.Add(subFolder);
}
}
public partial class ChangeCollectionView : UserControl
{
public static readonly StyledProperty<bool> IsWorkingCopyChangeProperty =
@ -91,26 +186,26 @@ namespace SourceGit.Views
var viewMode = ViewMode;
if (viewMode == Models.ChangeViewMode.Tree)
{
var filetree = Models.FileTreeNode.Build(changes, true);
var filetree = ChangeTreeNode.Build(changes, true);
var template = this.FindResource("TreeModeTemplate") as IDataTemplate;
var source = new HierarchicalTreeDataGridSource<Models.FileTreeNode>(filetree)
var source = new HierarchicalTreeDataGridSource<ChangeTreeNode>(filetree)
{
Columns =
{
new HierarchicalExpanderColumn<Models.FileTreeNode>(
new TemplateColumn<Models.FileTreeNode>(null, template, null, GridLength.Auto),
new HierarchicalExpanderColumn<ChangeTreeNode>(
new TemplateColumn<ChangeTreeNode>(null, template, null, GridLength.Auto),
x => x.Children,
x => x.Children.Count > 0,
x => x.IsExpanded)
}
};
var selection = new Models.TreeDataGridSelectionModel<Models.FileTreeNode>(source, x => x.Children);
var selection = new Models.TreeDataGridSelectionModel<ChangeTreeNode>(source, x => x.Children);
selection.SingleSelect = SingleSelect;
selection.RowDoubleTapped += (_, e) => RaiseEvent(new RoutedEventArgs(ChangeDoubleTappedEvent));
selection.SelectionChanged += (s, _) =>
{
if (!_isSelecting && s is Models.TreeDataGridSelectionModel<Models.FileTreeNode> model)
if (!_isSelecting && s is Models.TreeDataGridSelectionModel<ChangeTreeNode> model)
{
var selected = new List<Models.Change>();
foreach (var c in model.SelectedItems)
@ -195,7 +290,7 @@ namespace SourceGit.Views
else
changeSelection.Select(selected);
}
else if (tree.Source.Selection is Models.TreeDataGridSelectionModel<Models.FileTreeNode> treeSelection)
else if (tree.Source.Selection is Models.TreeDataGridSelectionModel<ChangeTreeNode> treeSelection)
{
if (selected == null || selected.Count == 0)
{
@ -208,9 +303,9 @@ namespace SourceGit.Views
foreach (var c in selected)
set.Add(c);
var nodes = new List<Models.FileTreeNode>();
var nodes = new List<ChangeTreeNode>();
foreach (var node in tree.Source.Items)
CollectSelectedNodeByChange(nodes, node as Models.FileTreeNode, set);
CollectSelectedNodeByChange(nodes, node as ChangeTreeNode, set);
if (nodes.Count == 0)
treeSelection.Clear();
@ -232,22 +327,20 @@ namespace SourceGit.Views
};
}
private void CollectChangesInNode(List<Models.Change> outs, Models.FileTreeNode node)
private void CollectChangesInNode(List<Models.Change> outs, ChangeTreeNode node)
{
if (node.IsFolder)
{
foreach (var child in node.Children)
CollectChangesInNode(outs, child);
}
else
else if (!outs.Contains(node.Change))
{
var change = node.Backend as Models.Change;
if (change != null && !outs.Contains(change))
outs.Add(change);
outs.Add(node.Change);
}
}
private void CollectSelectedNodeByChange(List<Models.FileTreeNode> outs, Models.FileTreeNode node, HashSet<object> selected)
private void CollectSelectedNodeByChange(List<ChangeTreeNode> outs, ChangeTreeNode node, HashSet<object> selected)
{
if (node == null)
return;
@ -257,7 +350,7 @@ namespace SourceGit.Views
foreach (var child in node.Children)
CollectSelectedNodeByChange(outs, child, selected);
}
else if (node.Backend != null && selected.Contains(node.Backend))
else if (node.Change != null && selected.Contains(node.Change))
{
outs.Add(node);
}