private void tlGroup_DragDrop(object sender, DragEventArgs e)
{
try
{
if (cbeGroup.Text == string.Empty || cbeGroup.Properties.Items.Count == 0)
{
if (MsgBox.Confirm(Resource.GetString(Resource.Strings.PlayListTimeSliceGroupControlGroupItemCountEmpty), MessageBoxButtons.YesNo) == DialogResult.Yes)
{
EditGroup(string.Empty);
}
return;
}
if (e.Data.GetDataPresent(typeof(LibraryNode)))
{
_node = (LibraryNode)e.Data.GetData(typeof(LibraryNode));
//Is not message
if (_node.Tag == null || ((LibraryItem)(_node.Tag)) == null)
{
return;
}
if (((LibraryItem)(_node.Tag)).Type == LibraryType.Message)
{
_adpater = ((MessageInfo)(_node.Tag)).ToProxy() as MessageAdapterInfo;
//Message length is not equal the group length
if (_adpater.Target.Length == 0)
{
MsgBox.Error(Resource.GetString(Resource.Strings.PlayListMessageLengthIsZero));
return;
}
_adpater.TargetId = _adpater.Target.Id;
//LibraryGroup.Current.Messages.GetByName(((MessageInfo)(_node.Tag)).Name).IsLock = true;
TreeListNode node = tlGroup.AppendNode(_adpater.ToArrayTimeSliceGroupItem(_currentGroup.Length), -1, _adpater);
_nodesList.Add(node);
if (_nodesList.Count == 1)
{
tlGroup.FocusedNode = node;
SetDefaultNailImage();
}
Save();
}
}
else
{
if (e.Data.GetDataPresent("DevExpress.XtraTreeList.Nodes.TreeListNode", false))
{
_node = (TreeListNode)e.Data.GetData(typeof(TreeListNode));
TreeListHitInfo hInfo = tlGroup.CalcHitInfo(tlGroup.PointToClient(new Point(e.X, e.Y)));
_sourceNode = _node;
_destinationNode = hInfo.Node;
//Save();
}
}
}
catch (Exception ex)
{
DataGate.Log.Error(Resource.GetString(Resource.Strings.PlayListTimeSliceGroupControlDragDropException), ex);
}
}
/// <summary>
/// Function:ReLoad Nodes
/// Author :Jerry Xu
/// Date :2008-7-15
/// </summary>
/// <param name="sourceNode">Source Node:TreeListNode</param>
/// <param name="destinationNode">Destination Node:TreeListNode</param>
private void ReLoadNodes(TreeListNode sourceNode, TreeListNode destinationNode)
{
//Drag source node is null or destionation node is null, exit
if (sourceNode == null || destinationNode == null)
{
return;
}
int sourceIndex = 0; //source node index;
int destinationIndex = 0; //destination node index;
_nodes = new TreeListNode[_nodesList.Count];
_nodesList.CopyTo(_nodes, 0);
for (int i = 0; i < _nodes.Length; i++)
{
if (_nodes[i] == sourceNode)
{
sourceIndex = i;
}
if (_nodes[i] == destinationNode)
{
destinationIndex = i;
}
}
_tempNodes = new TreeListNode[_nodes.Length];
//drag forward
if (sourceIndex > destinationIndex)
{
for (int i = 0; i < _nodes.Length; i++)
{
if (i < destinationIndex || i > sourceIndex)
{
_tempNodes[i] = _nodes[i];
}
if (i == sourceIndex)
{
_tempNodes[destinationIndex] = _nodes[i];
}
if (i >= destinationIndex && i < sourceIndex)
{
_tempNodes[i + 1] = _nodes[i];
}
}
}
else//Drag backward
{
for (int i = 0; i < _nodes.Length; i++)
{
if (i < sourceIndex || i >= destinationIndex)
{
_tempNodes[i] = _nodes[i];
}
if (i == sourceIndex)
{
_tempNodes[destinationIndex - 1] = _nodes[i];
}
if (i > sourceIndex && i < destinationIndex)
{
_tempNodes[i - 1] = _nodes[i];
}
}
}
//Clear nodes
tlGroup.Nodes.Clear();
_nodesList.Clear();
//Reload nodes
for (int i = 0; i < _tempNodes.Length; i++)
{
_adpater = (MessageAdapterInfo)(_tempNodes[i].Tag);
//_message = LibraryGroup.Current.Messages.GetByName(_adpater.MessageName);
_nodesList.Add(tlGroup.AppendNode(_adpater.ToArrayTimeSliceGroupItem(_currentGroup.Length), -1, _adpater));
//_nodes[i] = tlGroup.AppendNode(DataGate.ToArrayTimeSliceGroupItem(_currentGroup.Length ,_adpater), -1, _adpater);
}
//Clear source node and destination node
_sourceNode = null;
_destinationNode = null;
}
