private void RestoreExpansion()
{
foreach (object item in m_expandedItems)
{
TreeControlAdapter.Expand(item);
}
}
private void RestoreExpansion()
{
foreach (string category in m_expandedCollections)
{
TreeControlAdapter.Expand(category);
}
}
private void TreeControl_NodeExpandedChanged(object sender, TreeControl.NodeEventArgs e)
{
var treeView = TreeView.As <FilteredTreeView>();
// early exit
if (m_updating || !m_searching || e.Node.Tag == null ||
treeView == null)
{
return;
}
if (m_toExpand != null)
{
var node = m_toExpand;
m_toExpand = null;
try
{
m_updating = true;
TreeControlAdapter.Expand(node.Tag);
treeView.RestoreExpansion(e.Node, TreeControlAdapter);
}
finally
{
m_updating = false;
}
}
else if (e.Node.Expanded && RestoreSubExpansion)
{
treeView.RestoreExpansion(e.Node, TreeControlAdapter);
}
}
/// <summary>
/// Restores subtree's node expansion states, if remembered</summary>
/// <param name="treeControlAdapter">TreeControlAdapter that performs node expansion</param>
/// <param name="parent">Node whose subtree's expansion state was remembered</param>
public void RestoreExpansion(TreeControlAdapter treeControlAdapter, TreeControl.Node parent)
{
if (parent.Tag != null && m_expandedItems.ContainsKey(parent.Tag))
{
foreach (object item in m_expandedItems[parent.Tag])
{
treeControlAdapter.Expand(item);
}
}
}
private void ExpandAllMatches()
{
Tree <object> tree = new Tree <object>(TreeView.Root);
BuildTree(tree);
foreach (Tree <object> node in tree.PreOrder)
{
if (!node.IsLeaf)
{
TreeControlAdapter.Expand(node.Value);
}
}
}
internal void RestoreExpansion(TreeControl.Node parent, TreeControlAdapter treeAdapter)
{
if (parent.Tag == null)
{
return;
}
List <object> expandedItems;
if (m_expandedNodeMap.TryGetValue(parent.Tag, out expandedItems))
{
m_expandedNodeMap.Remove(parent.Tag);
expandedItems.ForEach(item => treeAdapter.Expand(item));
}
}
private void searchInput_Updated(object sender, EventArgs e)
{
if (TreeControl.Root == null)
{
return;
}
if (m_searchInput.IsNullOrEmpty())
{
if (m_searching)
{
// get the tree control to force-reload the tree data
m_paletteTreeAdapter.RefreshControl();
RestoreExpansion();
}
m_searching = false;
return;
}
else
{
if (!m_searching)
{
RememberExpansion();
}
m_searching = true;
}
m_paletteTreeAdapter.RefreshControl();
// expand categories that have matched children
foreach (object category in m_paletteTreeAdapter.GetChildren(m_paletteTreeAdapter))
{
foreach (object typeName in m_paletteTreeAdapter.GetChildren(category))
{
ItemInfo info = new WinFormsItemInfo();
m_paletteTreeAdapter.GetInfo(typeName, info);
if (m_searchInput.Matches(info.Label))
{
TreeControlAdapter.Expand(category);
break;
}
}
}
RestoreExpansion();
}
/// <summary>
/// Performs custom actions after changing a node's Expanded property</summary>
/// <param name="sender">Sender</param>
/// <param name="e">Event args</param>
void treeControl_NodeExpandedChanged(object sender, TreeControl.NodeEventArgs e)
{
if (!m_searching)
{
return;
}
var filteredTreeView = TreeView as FilteredTreeView;
if (m_nodeToExpand != null)
{
TreeControl.Node nodeToExpand = m_nodeToExpand;
m_autoExpanding = true;
TreeControlAdapter.Expand(m_nodeToExpand.Tag);
filteredTreeView.RestoreExpansion(TreeControlAdapter, nodeToExpand);
m_nodeToExpand = null;
m_autoExpanding = false;
}
else if (e.Node.Expanded && RestoreSubExpansion)
{
filteredTreeView.RestoreExpansion(TreeControlAdapter, e.Node);
}
}
internal void RestoreExpansion(TreeControl.Node parent, TreeControlAdapter treeAdapter)
{
if (parent.Tag == null)
return;
List<object> expandedItems;
if (m_expandedNodeMap.TryGetValue(parent.Tag, out expandedItems))
{
m_expandedNodeMap.Remove(parent.Tag);
expandedItems.ForEach(item => treeAdapter.Expand(item));
}
}
/// <summary>
/// Restores subtree's node expansion states, if remembered</summary>
/// <param name="treeControlAdapter">TreeControlAdapter that performs node expansion</param>
/// <param name="parent">Node whose subtree's expansion state was remembered</param>
public void RestoreExpansion(TreeControlAdapter treeControlAdapter, TreeControl.Node parent)
{
if (parent.Tag != null && m_expandedItems.ContainsKey(parent.Tag))
{
foreach (object item in m_expandedItems[parent.Tag])
treeControlAdapter.Expand(item);
}
}
