void HierarchyTree_DragDrop(object sender, System.Windows.Forms.DragEventArgs e)
{
Point p = this.PointToClient(new Point(e.X, e.Y));
HitRecord hit = Pick(p);
if (hit.Node != null)
{
Node dest = hit.Node;
Node data = e.Data.GetData(typeof(Node)) as Node;
EditorCore.DragDrop.DragMatcher matcher = EditorCore.DragDrop.DragMatchCollection.GetMaster().GetBestFor(data.Tag.GetType(), dest.Tag.GetType());
if (matcher != null)
{
if (matcher.CanDoDrop(data.Tag, dest.Tag))
{
matcher.DoDrop(data.Tag, dest.Tag, data, dest);
Node newNode = dest.Add(data.Tag);
data.Parent.Remove(data.Tag);
UpdateNode(newNode);
}
}
}
}
void HierarchyTree_DragOver(object sender, System.Windows.Forms.DragEventArgs e)
{
HitRecord hit = Pick(PointToClient(new Point(e.X, e.Y)));
if (hit.Node != null)
{
Node dest = hit.Node;
Node data = e.Data.GetData(typeof(Node)) as Node;
if (dest == null || data == null)
{
e.Effect = DragDropEffects.None;
return;
}
EditorCore.DragDrop.DragMatcher matcher = EditorCore.DragDrop.DragMatchCollection.GetMaster().GetBestFor(data.Tag.GetType(), dest.Tag.GetType());
if (matcher != null && matcher.CanDoDrop(data.Tag, dest.Tag))
{
e.Effect = DragDropEffects.Move;
}
else
{
e.Effect = DragDropEffects.None;
}
}
}
