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Merge branch 'Tryibion-shift-select-nodes'

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This commit is contained in:
Wojtek Figat
2025-08-19 23:00:43 +02:00
parent da23e287c0 2c1713d300
commit 4bf36f3467
1 changed files with 58 additions and 17 deletions
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75
Source/Editor/GUI/Tree/Tree.cs
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@@ -41,6 +41,7 @@ namespace FlaxEditor.GUI.Tree
private Margin _margin;
private bool _autoSize = true;
private bool _deferLayoutUpdate = false;
private TreeNode _lastSelectedNode;
/// <summary>
/// The TreeNode that is being dragged over. This could have a value when not dragging.
@@ -67,7 +68,7 @@ namespace FlaxEditor.GUI.Tree
/// Gets the first selected node or null.
/// </summary>
public TreeNode SelectedNode => Selection.Count > 0 ? Selection[0] : null;
/// <summary>
/// Allow nodes to Draw the root tree line.
/// </summary>
@@ -392,20 +393,30 @@ namespace FlaxEditor.GUI.Tree
{
if (_deferLayoutUpdate)
FlushPendingPerformLayout();
var window = Root;
bool shiftDown = window.GetKey(KeyboardKeys.Shift);
bool keyUpArrow = window.GetKey(KeyboardKeys.ArrowUp);
bool keyDownArrow = window.GetKey(KeyboardKeys.ArrowDown);
var node = SelectedNode;
// Use last selection for last selected node if sift is down
if (Selection.Count < 2)
_lastSelectedNode = null;
else if (shiftDown)
_lastSelectedNode ??= Selection[^1];
// Skip root to prevent blocking input
if (_lastSelectedNode != null && _lastSelectedNode.IsRoot)
_lastSelectedNode = null;
var node = _lastSelectedNode ?? SelectedNode;
// Check if has focus and if any node is focused and it isn't a root
if (ContainsFocus && node != null && node.AutoFocus)
{
var window = Root;
if (window.GetKeyDown(KeyboardKeys.ArrowUp) || window.GetKeyDown(KeyboardKeys.ArrowDown))
_keyUpdateTime = KeyUpdateTimeout;
if (_keyUpdateTime >= KeyUpdateTimeout && window is WindowRootControl windowRoot && windowRoot.Window.IsFocused)
{
bool keyUpArrow = window.GetKey(KeyboardKeys.ArrowUp);
bool keyDownArrow = window.GetKey(KeyboardKeys.ArrowDown);
// Check if arrow flags are different
if (keyDownArrow != keyUpArrow)
{
@@ -415,24 +426,38 @@ namespace FlaxEditor.GUI.Tree
Assert.AreNotEqual(-1, myIndex);
// Up
TreeNode toSelect = null;
List<TreeNode> toSelect = new List<TreeNode>();
if (shiftDown && _supportMultiSelect)
{
toSelect.AddRange(Selection);
}
if (keyUpArrow)
{
if (myIndex == 0)
{
// Select parent
toSelect = parentNode;
if (toSelect.Contains(parentNode))
toSelect.Remove(node);
else if (parentNode != null)
toSelect.Add(parentNode);
_lastSelectedNode = parentNode;
}
else
{
// Select previous parent child
toSelect = nodeParent.GetChild(myIndex - 1) as TreeNode;
var select = nodeParent.GetChild(myIndex - 1) as TreeNode;
// Select last child if is valid and expanded and has any children
if (toSelect != null && toSelect.IsExpanded && toSelect.HasAnyVisibleChild)
if (select != null && select.IsExpanded && select.HasAnyVisibleChild)
{
toSelect = toSelect.GetChild(toSelect.ChildrenCount - 1) as TreeNode;
select = select.GetChild(select.ChildrenCount - 1) as TreeNode;
}
if (select == null || toSelect.Contains(select))
toSelect.Remove(node);
else
toSelect.Add(select);
_lastSelectedNode = select;
}
}
// Down
@@ -441,32 +466,48 @@ namespace FlaxEditor.GUI.Tree
if (node.IsExpanded && node.HasAnyVisibleChild)
{
// Select the first child
toSelect = node.GetChild(0) as TreeNode;
var select = node.GetChild(0) as TreeNode;
if (select == null || toSelect.Contains(select))
toSelect.Remove(node);
else
toSelect.Add(select);
_lastSelectedNode = select;
}
else if (myIndex == nodeParent.ChildrenCount - 1)
{
// Select next node after parent
while (parentNode != null && toSelect == null)
TreeNode select = null;
while (parentNode != null && select == null)
{
int parentIndex = parentNode.IndexInParent;
if (parentIndex != -1 && parentIndex < parentNode.Parent.ChildrenCount - 1)
{
toSelect = parentNode.Parent.GetChild(parentIndex + 1) as TreeNode;
select = parentNode.Parent.GetChild(parentIndex + 1) as TreeNode;
}
parentNode = parentNode.Parent as TreeNode;
}
if (select == null || toSelect.Contains(select))
toSelect.Remove(node);
else
toSelect.Add(select);
_lastSelectedNode = select;
}
else
{
// Select next parent child
toSelect = nodeParent.GetChild(myIndex + 1) as TreeNode;
var select = nodeParent.GetChild(myIndex + 1) as TreeNode;
if (select == null || toSelect.Contains(select))
toSelect.Remove(node);
else
toSelect.Add(select);
_lastSelectedNode = select;
}
}
if (toSelect != null && toSelect.AutoFocus)
if (toSelect.Count > 0)
{
// Select
Select(toSelect);
toSelect.Focus();
_lastSelectedNode?.Focus();
}
// Reset time