internal ExplorerObjectNode FindNode(IExplorerObject exObject)
{
foreach (TreeNode node in treeView.Nodes)
{
ExplorerObjectNode n = FindNode(node, exObject);
if (n != null)
{
return(n);
}
}
return(null);
}
void CatalogTreeControl_ExplorerObjectRenamed(IExplorerObject exObject)
{
if (exObject == null)
{
return;
}
ExplorerObjectNode node = FindNode(exObject);
if (node != null)
{
node.Text = exObject.Name;
}
}
private void treeView_BeforeSelect(object sender, TreeViewCancelEventArgs e)
{
ExplorerObjectNode node = treeView.SelectedNode as ExplorerObjectNode;
if (node == null)
{
return;
}
if (node.ExplorerObject is IExplorerParentObject && !node.IsExpanded)
{
((IExplorerParentObject)node.ExplorerObject).DiposeChildObjects();
}
}
internal void InsertComputerChildNodes(IExplorerObject computerObject, TreeNode computer)
{
//DateTime t1 = DateTime.Now;
ManagementObjectSearcher query = new ManagementObjectSearcher("SELECT Name,DriveType From Win32_LogicalDisk ");
ManagementObjectCollection collection = query.Get();
foreach (ManagementObject manObject in collection)
{
DriveObject exObject = new DriveObject(computerObject, manObject["Name"].ToString(), (uint)manObject["DriveType"]);
ExplorerObjectNode d = new ExplorerObjectNode(exObject, exObject.ImageIndex);
computer.Nodes.Add(d);
}
//TimeSpan ts = DateTime.Now-t1;
//MessageBox.Show(ts.TotalMilliseconds.ToString());
}
async internal Task <IExplorerObject> AddChildNode(IExplorerObject exObject)
{
if (!(treeView.SelectedNode is ExplorerObjectNode) || exObject == null)
{
return(exObject);
}
ExplorerObjectNode node = treeView.SelectedNode as ExplorerObjectNode;
if (node.ExplorerObject is IExplorerParentObject)
{
await((IExplorerParentObject)node.ExplorerObject).Refresh();
foreach (IExplorerObject child in await((IExplorerParentObject)node.ExplorerObject).ChildObjects())
{
if (ExObjectComparer.Equals(child, exObject))
{
exObject = child;
break;
}
}
}
if (exObject is IExplorerObjectDeletable)
{
((IExplorerObjectDeletable)exObject).ExplorerObjectDeleted += new ExplorerObjectDeletedEvent(CatalogTreeControl_ExplorerObjectDeleted);
}
if (exObject is IExplorerObjectRenamable)
{
((IExplorerObjectRenamable)exObject).ExplorerObjectRenamed += new ExplorerObjectRenamedEvent(CatalogTreeControl_ExplorerObjectRenamed);
}
if (!node.IsExpanded)
{
return(exObject);
}
int imageIndex = gView.Explorer.UI.Framework.UI.ExplorerIcons.ImageIndex(exObject);
node.Nodes.Add(new ExplorerObjectNode(exObject, imageIndex));
return(exObject);
}
private void treeView_AfterCollapse(object sender, TreeViewEventArgs e)
{
if (e.Node is ComputerNode)
{
return;
}
ExplorerObjectNode node = e.Node as ExplorerObjectNode;
if (node == null || node == treeView.SelectedNode)
{
return;
}
if (node.ExplorerObject is IExplorerParentObject)
{
((IExplorerParentObject)node.ExplorerObject).DiposeChildObjects();
}
//Cursor = Cursors.WaitCursor;
//RemoveAndDisposeChildNodes(e.Node);
//e.Node.Nodes.Add(new DummyNode());
//Cursor = Cursors.Default;
}
internal ExplorerObjectNode FindNode(TreeNode parent, IExplorerObject exObject)
{
if (parent == null)
{
return(null);
}
if (parent is ExplorerObjectNode &&
ExObjectComparer.Equals(((ExplorerObjectNode)parent).ExplorerObject, exObject))
{
return(parent as ExplorerObjectNode);
}
foreach (TreeNode node in parent.Nodes)
{
ExplorerObjectNode n = FindNode(node, exObject);
if (n != null)
{
return(n);
}
}
return(null);
}
/*
* private void InsertNodeElementsTask(object parameters)
* {
* TreeNode treenode = (TreeNode)((object[])parameters)[0];
* IExplorerObject exObject = (IExplorerObject)((object[])parameters)[1];
*
* IStatusBar statusbar = (_app != null) ? _app.StatusBar : null;
* List<ExplorerObjectNode> treeNodes = new List<ExplorerObjectNode>();
*
* List<IExplorerObject> childObjects = ((IExplorerParentObject)exObject).ChildObjects;
* if (childObjects == null) return;
* int pos = 0, count = childObjects.Count;
* if (statusbar != null) statusbar.ProgressVisible = true;
*
* foreach (IExplorerObject exObj in childObjects)
* {
* if (exObj == null ||
* exObj is IExplorerObjectDoubleClick) continue;
*
* if (statusbar != null)
* {
* statusbar.ProgressValue = (int)(((double)pos++ / (double)count) * 100.0);
* statusbar.Text = exObj.Name;
* statusbar.Refresh();
* }
*
* if (_filter != null)
* {
* if (_filter.Match(exObj))
* continue;
* else if (!(exObj is IExplorerParentObject)) continue;
* }
* int imageIndex = FormExplorer.ImageIndex(exObj);
* treeNodes.Add(new ExplorerObjectNode(exObj, imageIndex));
*
* if (exObj is IExplorerObjectDeletable)
* ((IExplorerObjectDeletable)exObj).ExplorerObjectDeleted += new ExplorerObjectDeletedEvent(CatalogTreeControl_ExplorerObjectDeleted);
* if (exObj is IExplorerObjectRenamable)
* ((IExplorerObjectRenamable)exObj).ExplorerObjectRenamed += new ExplorerObjectRenamedEvent(CatalogTreeControl_ExplorerObjectRenamed);
* if (exObj is IRefreshedEventHandler)
* ((IRefreshedEventHandler)exObj).Refreshed += new RefreshedEventHandler(CatalogTreeControl_Refreshed);
* }
*
* if (treenode.Nodes.Count == 0)
* {
* treenode.Nodes.Add(new DummyNode());
* return;
* }
* }
*
* private delegate void InsertNodeElementsCallback(TreeNode treeNode, List<ExplorerObjectNode> childNodes);
* private void InsertNodeElements(TreeNode treeNode, List<ExplorerObjectNode> childNodes)
* {
* if (this.InvokeRequired)
* {
* this.Invoke(new InsertNodeElementsCallback(InsertNodeElements), new object[] { treeNode, childNodes });
* }
* else
* {
* foreach (ExplorerObjectNode childNode in childNodes)
* {
* treeNode.Nodes.Add(childNode);
* }
* }
* }
*/
async private Task <bool> InsertNodeElements(TreeNode treenode)
{
if (!(treenode is ExplorerObjectNode))
{
return(true);
}
ExplorerObjectNode node = (ExplorerObjectNode)treenode;
IExplorerObject exObject = node.ExplorerObject;
if (exObject == null)
{
return(true);
}
try
{
Cursor = Cursors.WaitCursor;
if (exObject is IExplorerParentObject)
{
//System.Threading.Thread thread = new System.Threading.Thread(new System.Threading.ParameterizedThreadStart(InsertNodeElementsTask));
//thread.Start(new object[] { treenode, exObject });
treenode.Nodes.Clear();
IStatusBar statusbar = (_app != null) ? _app.StatusBar : null;
List <IExplorerObject> childObjects = await((IExplorerParentObject)exObject).ChildObjects();
if (childObjects == null)
{
return(false);
}
int pos = 0, count = childObjects.Count;
if (statusbar != null)
{
statusbar.ProgressVisible = true;
}
foreach (IExplorerObject exObj in childObjects)
{
if (exObj == null ||
exObj is IExplorerObjectDoubleClick)
{
continue;
}
if (statusbar != null)
{
statusbar.ProgressValue = (int)((pos++ / (double)count) * 100.0);
statusbar.Text = exObj.Name;
statusbar.Refresh();
}
if (_filter != null)
{
if (await _filter.Match(exObj))
{
continue;
}
else if (!(exObj is IExplorerParentObject))
{
continue;
}
}
int imageIndex = gView.Explorer.UI.Framework.UI.ExplorerIcons.ImageIndex(exObj);
treenode.Nodes.Add(new ExplorerObjectNode(exObj, imageIndex));
if (exObj is IExplorerObjectDeletable)
{
((IExplorerObjectDeletable)exObj).ExplorerObjectDeleted += new ExplorerObjectDeletedEvent(CatalogTreeControl_ExplorerObjectDeleted);
}
if (exObj is IExplorerObjectRenamable)
{
((IExplorerObjectRenamable)exObj).ExplorerObjectRenamed += new ExplorerObjectRenamedEvent(CatalogTreeControl_ExplorerObjectRenamed);
}
if (exObj is IRefreshedEventHandler)
{
((IRefreshedEventHandler)exObj).Refreshed += new RefreshedEventHandler(CatalogTreeControl_Refreshed);
}
}
if (statusbar != null)
{
statusbar.ProgressVisible = false;
statusbar.Text = String.Empty;
statusbar.Refresh();
}
}
if (treenode.Nodes.Count == 0)
{
treenode.Nodes.Add(new DummyNode());
return(false);
}
return(true);
}
catch (Exception ex)
{
Cursor = Cursors.Default;
MessageBox.Show(ex.Message);
treenode.Nodes.Add(new DummyNode());
return(false);
}
finally
{
Cursor = Cursors.Default;
}
}
internal void RemoveChildNode(IExplorerObject exObject)
{
if (exObject == null)
{
return;
}
TreeNode node = treeView.SelectedNode;
if (node == null)
{
return;
}
bool removed = false;
if (node.IsExpanded)
{
int index = -1;
foreach (TreeNode n in node.Nodes)
{
if (!(n is ExplorerObjectNode))
{
continue;
}
IExplorerObject ex = ((ExplorerObjectNode)n).ExplorerObject;
if (ex == null)
{
continue;
}
if (ExObjectComparer.Equals(ex, exObject))
{
index = node.Nodes.IndexOf(n);
break;
}
}
if (index != -1)
{
node.Nodes.RemoveAt(index);
removed = true;
}
}
if (removed)
{
if (node.Nodes.Count == 0)
{
node.Nodes.Add(new DummyNode());
node.Collapse();
}
}
else
{
ExplorerObjectNode exNode = FindNode(exObject);
if (exNode != null)
{
if (exNode == treeView.SelectedNode)
{
treeView.SelectedNode = treeView.SelectedNode.Parent;
treeView.Nodes.Remove(exNode);
if (treeView.SelectedNode.Nodes.Count == 0)
{
treeView.SelectedNode.Nodes.Add(new DummyNode());
treeView.SelectedNode.Collapse();
}
}
else
{
treeView.Nodes.Remove(exNode);
}
}
}
}