/// <summary>
/// Searches for a node which contains a particular QSetItemBase object.
/// </summary>
/// <param name="item">QSetItemBase to search for.</param>
/// <param name="searchRootNode">Tree node to start search from.</param>
/// <returns>The node hosting the item if found, else null.</returns>
private QSetItemTreeNode FindNode(QSetItemBase item, QSetItemTreeNode searchRootNode)
{
QSetItemTreeNode result = null;
foreach (TreeNode node in searchRootNode.Nodes)
{
QSetItemTreeNode checkQSetNode = ((QSetItemTreeNode)node);
if (checkQSetNode.QSetItem == item)
{
result = checkQSetNode;
break;
}
else if (checkQSetNode.QSetItem is QSetFolderItem)
{
result = FindNode(item, checkQSetNode);
if (result != null)
{
break;
}
}
}
return(result);
}
/// <summary>
/// Handles event fired when a child item is removed from the current item.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ChildItems_BeforeItemRemoved(object sender, BeforeItemRemovedEventArgs e)
{
QSetItemTreeNode removedNode = (QSetItemTreeNode)base.Nodes[e.RemovedAt];
base.Nodes.RemoveAt(e.RemovedAt);
removedNode.Dispose();
}
/// <summary>
/// Displays a QSet in the explorer.
/// </summary>
/// <param name="queueSet">QSet to display.</param>
private void DisplayQSet(QSetModel queueSet)
{
_qsetTreeView.Nodes.Clear();
if (_qset != null)
{
QSetItemTreeNode queueSetNode = new QSetItemTreeNode(_qset);
_qsetTreeView.Nodes.Add((QSetItemTreeNode)queueSetNode);
DisplayQSetChildItems(queueSet, queueSetNode);
}
}
/// <summary>
/// Recursively adds child nodes to a node.
/// </summary>
/// <param name="parentItem">Parent folder item.</param>
/// <param name="parentNode">Parent node.</param>
public void CreateChildNodes(QSetFolderItem parentFolderItem, TreeNode parentNode)
{
foreach (QSetItemBase item in parentFolderItem.ChildItems)
{
QSetItemTreeNode itemNode = new QSetItemTreeNode(item);
parentNode.Nodes.Add((TreeNode)itemNode);
if (item is QSetFolderItem)
{
CreateChildNodes((QSetFolderItem)item, itemNode);
}
}
}
/// <summary>
/// Handles event fired when a child is added to the current item.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ChildItems_AfterItemAdded(object sender, AfterItemAddedEventArgs e)
{
QSetItemTreeNode newNode = new QSetItemTreeNode(e.Item);
QSetItemTreeNode newNodeRef = newNode;
if (e.Item is QSetFolderItem)
{
CreateChildNodes((QSetFolderItem)e.Item, newNodeRef);
}
base.Nodes.Insert(e.InsertedAt, newNode);
base.Expand();
base.TreeView.SelectedNode = newNode;
newNode.EnsureVisible();
}
/// <summary>
/// Recursively adds child nodes to a node.
/// </summary>
/// <param name="parentItem">Parent folder item.</param>
/// <param name="parentNode">Parent node.</param>
public void CreateChildNodes(QSetFolderItem parentFolderItem, TreeNode parentNode)
{
foreach (QSetItemBase item in parentFolderItem.ChildItems)
{
QSetItemTreeNode itemNode = new QSetItemTreeNode(item);
parentNode.Nodes.Add((TreeNode)itemNode);
if (item is QSetFolderItem)
CreateChildNodes((QSetFolderItem)item, itemNode);
}
}
/// <summary>
/// Handles event fired when a child is added to the current item.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ChildItems_AfterItemAdded(object sender, AfterItemAddedEventArgs e)
{
QSetItemTreeNode newNode = new QSetItemTreeNode(e.Item);
QSetItemTreeNode newNodeRef = newNode;
if (e.Item is QSetFolderItem)
CreateChildNodes((QSetFolderItem)e.Item, newNodeRef);
base.Nodes.Insert(e.InsertedAt, newNode);
base.Expand();
base.TreeView.SelectedNode = newNode;
newNode.EnsureVisible();
}
/// <summary>
/// Displays a QSet in the explorer.
/// </summary>
/// <param name="queueSet">QSet to display.</param>
private void DisplayQSet(QSetModel queueSet)
{
_qsetTreeView.Nodes.Clear();
if (_qset != null)
{
QSetItemTreeNode queueSetNode = new QSetItemTreeNode(_qset);
_qsetTreeView.Nodes.Add((QSetItemTreeNode)queueSetNode);
DisplayQSetChildItems(queueSet, queueSetNode);
}
}
/// <summary>
/// Searches for a node which contains a particular QSetItemBase object.
/// </summary>
/// <param name="item">QSetItemBase to search for.</param>
/// <param name="searchRootNode">Tree node to start search from.</param>
/// <returns>The node hosting the item if found, else null.</returns>
private QSetItemTreeNode FindNode(QSetItemBase item, QSetItemTreeNode searchRootNode)
{
QSetItemTreeNode result = null;
foreach(TreeNode node in searchRootNode.Nodes)
{
QSetItemTreeNode checkQSetNode = ((QSetItemTreeNode)node);
if (checkQSetNode.QSetItem == item)
{
result = checkQSetNode;
break;
}
else if (checkQSetNode.QSetItem is QSetFolderItem)
{
result = FindNode(item, checkQSetNode);
if (result != null)
break;
}
}
return result;
}
