internal GraphicTerminal(BaseElement linkedObject)
: base(linkedObject)
{
BuildBody();
m_Node = new ConnectionNode(m_Body.Path.GetLastPoint());
AddChild(m_Node);
}
public ConnectionLine(ConnectionNode first, ConnectionNode second)
{
m_Nodes = new List <ConnectionNode>(2);
AttachNode(first);
AttachNode(second);
BuildBody();
}
/// <summary>
/// Merges all connected Terminals of the given connection to this one
/// </summary>
/// <param name="graphicConnection">connection to derive connection items from</param>
internal void Merge(GraphicConnection graphicConnection)
{
Connection otherConnection = graphicConnection.LinkedObject as Connection;
Connection connection = LinkedObject as Connection;
foreach (Terminal terminal in otherConnection.Terminals)
{
otherConnection.DisconnectTerminal(terminal);
connection.ConnectTerminal(terminal);
}
//clone all nodes of the other connection
foreach (GraphicBaseElement child in graphicConnection.Children)
{
if (child is ConnectionNode)
{
ConnectionNode clone = new ConnectionNode(child.Location);
AddChild(clone);
}
}
//clone all lines of the other connection attached to the previously cloned nodes
foreach (GraphicBaseElement child in graphicConnection.Children)
{
if (child is ConnectionLine)
{
ConnectionLine orig = child as ConnectionLine;
ConnectionNode node1, node2;
//select cloned nodes or terminal nodes
if (orig.Nodes[0].Parent is GraphicConnection)
{
node1 = GetItemAt(orig.Nodes[0].Location, typeof(ConnectionNode)) as ConnectionNode;
}
else
{
node1 = orig.Nodes[0];
}
if (orig.Nodes[1].Parent is GraphicConnection)
{
node2 = GetItemAt(orig.Nodes[1].Location, typeof(ConnectionNode)) as ConnectionNode;
}
else
{
node2 = orig.Nodes[1];
}
if (node1 != null && node2 != null)
{
graphicConnection.RemoveChild(child);
ConnectionLine clone = new ConnectionLine(node1, node2);
AddChild(clone);
}
}
}
foreach (GraphicBaseElement child in graphicConnection.Children)
{
graphicConnection.RemoveChild(child);
}
BuildBody();
}
/// <summary>
/// Detaches this line from a node
/// </summary>
/// <param name="node">Node to detach from</param>
private void DetachNode(ConnectionNode node)
{
if (m_Nodes.Contains(node))
{
m_Nodes.Remove(node);
node.DetachLine(this);
node.OnLocationChanged -= Node_OnLocationChanged;
}
}
/// <summary>
/// Attaches this line to a node
/// </summary>
/// <param name="node">Node to attach to</param>
private void AttachNode(ConnectionNode node)
{
if (m_Nodes.Contains(node) || m_Nodes.Count >= 2)
{
return;
}
m_Nodes.Add(node);
node.AttachLine(this);
node.OnLocationChanged += new LocationChangeEvent(Node_OnLocationChanged);
}
