public FilterTagsTreeNode(FilterTagsTreeNode InParent, FAllocationTagHierarchy.INode InAllocTagNode)
{
Parent = InParent;
if (Parent != null)
{
Parent.Children.Add(this);
}
AllocTagNode = InAllocTagNode;
}
private bool BuildInternalTree(string[] InFilterTerms, FAllocationTagHierarchy.INode InParentAllocTagNode, FilterTagsTreeNode InParentInternalNode)
{
bool bIsFiltering = InFilterTerms != null && InFilterTerms.Length > 0;
foreach (var ChildAllocTagNode in InParentAllocTagNode.GetChildNodes())
{
var ChildInternalNode = new FilterTagsTreeNode(null, ChildAllocTagNode); // Don't set the parent yet as we might not add it to the tree
if (BuildInternalTree(InFilterTerms, ChildAllocTagNode, ChildInternalNode))
{
// Link the node now
ChildInternalNode.Parent = InParentInternalNode;
InParentInternalNode.Children.Add(ChildInternalNode);
}
}
foreach (var ChildAllocTag in InParentAllocTagNode.GetChildTags())
{
var AllocTag = ChildAllocTag.GetTag().Value;
bool bChildTagNamePassesFilter = true;
if (bIsFiltering)
{
var FullTagName = AllocTag.Name.ToLower();
foreach (var FilterTerm in InFilterTerms)
{
if (!FullTagName.Contains(FilterTerm))
{
bChildTagNamePassesFilter = false;
break;
}
}
}
if (bChildTagNamePassesFilter)
{
var ChildInternalNode = new FilterTagsTreeNode(InParentInternalNode, ChildAllocTag);
}
}
return(InParentInternalNode.Children.Count > 0);
}
private void PopulateTagFilterHierarchy(string[] InFilterTerms)
{
UseWaitCursor = true;
// Build the internal tree
{
InternalTreeRoot = new FilterTagsTreeNode(null);
var RootNode = FStreamInfo.GlobalInstance.TagHierarchy.GetRootNode();
BuildInternalTree(InFilterTerms, RootNode, InternalTreeRoot);
}
// Build the WinForm tree
if (FilterTagsTreeView.Handle != null) // This if statement exists to force the native tree view handle to be created
{
bool bIsFiltering = InFilterTerms != null && InFilterTerms.Length > 0;
FilterTagsTreeView.BeginUpdate();
FilterTagsTreeView.AfterCheck -= FilterTagsTreeView_AfterCheck;
FilterTagsTreeView.BeforeExpand -= FilterTagsTreeView_BeforeExpand;
FilterTagsTreeView.Nodes.Clear();
BuildFilterTagsTree(InternalTreeRoot, FilterTagsTreeView.Nodes, bIsFiltering);
UpdateCheckboxState(FilterTagsTreeView.Nodes);
if (bIsFiltering)
{
FilterTagsTreeView.ExpandAll();
}
FilterTagsTreeView.AfterCheck += FilterTagsTreeView_AfterCheck;
FilterTagsTreeView.BeforeExpand += FilterTagsTreeView_BeforeExpand;
FilterTagsTreeView.EndUpdate();
}
UseWaitCursor = false;
}
private void BuildFilterTagsTree(FilterTagsTreeNode InParentInternalNode, TreeNodeCollection InTreeNodesList, bool bRecursive)
{
foreach (var ChildInternalNode in InParentInternalNode.Children)
{
var ChildTreeNode = new TreeNode(ChildInternalNode.AllocTagNode.GetNodeName());
ChildTreeNode.Tag = ChildInternalNode;
if (bRecursive)
{
BuildFilterTagsTree(ChildInternalNode, ChildTreeNode.Nodes, bRecursive);
}
else
{
// Add a dummy child node if needed so that we still get an expansion arrow
if (ChildInternalNode.Children.Count > 0)
{
ChildTreeNode.Nodes.Add(new TreeNode());
}
}
InTreeNodesList.Add(ChildTreeNode);
}
}
