/// <summary>
///
/// </summary>
/// <param name="e"></param>
protected override void OnDragDrop(System.Windows.Forms.DragEventArgs e)
{
// Custom cursor handling
if (this._dragCursorType == DragCursorType.DragIcon)
{
this.Cursor = Cursors.Default;
}
this._formDrag.Visible = false;
// Check it's a treenode being dragged
if (e.Data.GetDataPresent("System.Windows.Forms.TreeNode", false))
{
TreeNode dragNode = (TreeNode)e.Data.GetData("System.Windows.Forms.TreeNode");
// Get the target node from the mouse coords
Point pt = ((TreeView)this).PointToClient(new Point(e.X, e.Y));
TreeNode targetNode = this.GetNodeAt(pt);
if (targetNode == null)
{
return;
}
// De-color it
targetNode.BackColor = SystemColors.HighlightText;
targetNode.ForeColor = SystemColors.ControlText;
TreeNode draggedOn = targetNode;
int insertIndex = -1;
if (DragCompleteValid != null)
{
DragCompletionValidEventArgs ea = new DragCompletionValidEventArgs();
ea.RemovedNode = dragNode;
ea.NewParent = targetNode;
ea.DraggedOn = draggedOn;
ea.OldParent = dragNode.Parent;
ea.Cancel = false;
DragCompleteValid(this, ea);
if (ea.Cancel)
{
return;
}
targetNode = ea.NewParent;
draggedOn = ea.DraggedOn;
insertIndex = ea.InsertIndex;
}
// 1) Check we're not dragging onto ourself
// 2) Check we're not dragging onto one of our children
// (this is the lazy way, will break if there are nodes with the same name,
// but it's quicker than checking all nodes below is)
// 3) Check we're not dragging onto our parent
if (targetNode != dragNode && !targetNode.FullPath.StartsWith(dragNode.FullPath) && (dragNode.Parent != targetNode || (draggedOn != null && draggedOn.Parent == targetNode)))
{
// Copy the node, add as a child to the destination node
TreeNode newTreeNode = (TreeNode)dragNode.Clone();
if (insertIndex == -1)
{
targetNode.Nodes.Add(newTreeNode);
}
else
{
targetNode.Nodes.Insert(insertIndex, newTreeNode);
}
targetNode.Expand();
TreeNode oldParent = dragNode.Parent;
// Remove Original Node, set the dragged node as selected
dragNode.Remove();
this.SelectedNode = newTreeNode;
this.Cursor = Cursors.Default;
// Call drag complete event
if (this.DragComplete != null)
{
DragCompleteEventArgs ea = new DragCompleteEventArgs();
ea.RemovedNode = dragNode;
ea.NewParent = targetNode;
ea.OldParent = oldParent;
ea.CloneNode = newTreeNode;
ea.DraggedOn = draggedOn;
ea.InsertIndex = insertIndex;
this.DragComplete(this, ea);
}
}
}
}
private void projectView_DragComplete(object sender, DragCompleteEventArgs e)
{
DirItem draggedItem = (DirItem) e.RemovedNode.Tag;
FolderItem newParentItem = (FolderItem) e.NewParent.Tag;
draggedItem.MoveTo(newParentItem,
e.InsertIndex == -1 ? newParentItem.Children.Count : e.InsertIndex);
MatchClonedTags(e.CloneNode, e.RemovedNode);
RebuildProjectView();
//FixSystemInfoRefferences(e.NewSourceNode);
}
/// <summary>
///
/// </summary>
/// <param name="e"></param>
protected override void OnDragDrop(System.Windows.Forms.DragEventArgs e)
{
// Custom cursor handling
if ( this._dragCursorType == DragCursorType.DragIcon )
{
this.Cursor = Cursors.Default;
}
this._formDrag.Visible = false;
// Check it's a treenode being dragged
if( e.Data.GetDataPresent("System.Windows.Forms.TreeNode", false) )
{
TreeNode dragNode = (TreeNode)e.Data.GetData("System.Windows.Forms.TreeNode");
// Get the target node from the mouse coords
Point pt = ((TreeView)this).PointToClient(new Point(e.X, e.Y));
TreeNode targetNode = this.GetNodeAt(pt);
if (targetNode == null) return;
// De-color it
targetNode.BackColor = SystemColors.HighlightText;
targetNode.ForeColor = SystemColors.ControlText;
TreeNode draggedOn = targetNode;
int insertIndex = -1;
if (DragCompleteValid != null)
{
DragCompletionValidEventArgs ea = new DragCompletionValidEventArgs();
ea.RemovedNode = dragNode;
ea.NewParent = targetNode;
ea.DraggedOn = draggedOn;
ea.OldParent = dragNode.Parent;
ea.Cancel = false;
DragCompleteValid(this, ea);
if (ea.Cancel) return;
targetNode = ea.NewParent;
draggedOn = ea.DraggedOn;
insertIndex = ea.InsertIndex;
}
// 1) Check we're not dragging onto ourself
// 2) Check we're not dragging onto one of our children
// (this is the lazy way, will break if there are nodes with the same name,
// but it's quicker than checking all nodes below is)
// 3) Check we're not dragging onto our parent
if( targetNode != dragNode && !targetNode.FullPath.StartsWith(dragNode.FullPath) && (dragNode.Parent != targetNode || (draggedOn != null && draggedOn.Parent == targetNode)))
{
// Copy the node, add as a child to the destination node
TreeNode newTreeNode = (TreeNode) dragNode.Clone();
if (insertIndex == -1)
targetNode.Nodes.Add(newTreeNode);
else
targetNode.Nodes.Insert(insertIndex, newTreeNode);
targetNode.Expand();
TreeNode oldParent = dragNode.Parent;
// Remove Original Node, set the dragged node as selected
dragNode.Remove();
this.SelectedNode = newTreeNode;
this.Cursor = Cursors.Default;
// Call drag complete event
if ( this.DragComplete != null )
{
DragCompleteEventArgs ea = new DragCompleteEventArgs();
ea.RemovedNode = dragNode;
ea.NewParent = targetNode;
ea.OldParent = oldParent;
ea.CloneNode = newTreeNode;
ea.DraggedOn = draggedOn;
ea.InsertIndex = insertIndex;
this.DragComplete(this,ea);
}
}
}
}
