public void NotifyDragAction(UIBrowserTreeNode src, UIElement dest)
{
var basep = src.DisplayElement.BindingElement.PositionScreen;
if (dest is BrowserTreeDisplayNode)
{
BrowserTreeDisplayNode dest2 = (BrowserTreeDisplayNode)dest;
if (src == dest2.Info)
{
return;
}
dest2.Info.AddChildTreeNode(src);
}
else if (dest == _viewPort)
{
if (src.InfoParent != null)
{
src.InfoParent.RemoveChildTreeNode(src);
src.InfoParent = null;
}
else
{
RemoveTreeRoot(src);
}
Editor.Viewer.Canvas.Root.AppendChild(src.DisplayElement.BindingElement);
AddElement(src);
}
src.DisplayElement.BindingElement.Position = src.DisplayElement.BindingElement.ScreenPositionToParentAR(basep);
src.DisplayElement.BindingElement.Recalculate();
Editor.NotifySelectionChange();
}
private void _assignEvent(UIBrowserTreeNode treenode)
{
treenode.Parent = this;
treenode.DisplayElement.OnMouseDown += DisplayElement_OnMouseDown;
foreach (var child in treenode.TreeNodes)
{
_assignEvent(child);
}
}
public void AddChildTreeNode(UIBrowserTreeNode node)
{
if (node.InfoParent != null)
{
node.InfoParent.RemoveChildTreeNode(node);
node.InfoParent.CanFold = node.InfoParent.TreeNodes.Count > 0;
}
else
{
var tree = (UIBrowserTreeList)Parent;
tree.RemoveTreeRoot(node);
}
node.InfoParent = this;
DisplayElement.BindingElement.AppendChild(node.DisplayElement.BindingElement);
TreeNodes.Add(node);
}
private void _dfsCalculate(UIBrowserTreeNode node, float leftPadding, GameTime gameTime)
{
_maxLeftPadding = Math.Max(_maxLeftPadding, leftPadding);
node.DisplayElement.LeftOffset = leftPadding;
node.DisplayElement.Position = new Vector2(0, _totHeight);
node.DisplayElement.IsSelected = (node.DisplayElement == SelectedElement);
node.DisplayElement.IsDragOver = (node.DisplayElement.ScreenHitBox.Contains(Main.MouseScreen));
node.DisplayElement.Update(gameTime);
_addElement(node.DisplayElement);
_totHeight += node.DisplayElement.Height + ItemMargin;
node.CanFold = (node.TreeNodes.Count != 0);
if (node.DisplayElement.IsFolded)
{
return;
}
foreach (var child in node.TreeNodes)
{
_dfsCalculate(child, leftPadding + LayerPaddingLeft, gameTime);
}
}
internal void RemoveTreeRoot(UIBrowserTreeNode node)
{
_roots.Remove(node);
}
public BrowserTreeDisplayNode(string text, UIElement element, UIBrowserTreeNode info) : base(text)
{
BindingElement = element;
Info = info;
}
public void RemoveChildTreeNode(UIBrowserTreeNode node)
{
DisplayElement.BindingElement.RemoveChild(node.DisplayElement.BindingElement);
TreeNodes.Remove(node);
CanFold = TreeNodes.Count > 0;
}