/// <summary>
/// Begins connecting surface objects action.
/// </summary>
/// <param name="instigator">The connection instigator (eg. start box).</param>
public void ConnectingStart(IConnectionInstigator instigator)
{
if (instigator != null && instigator != _connectionInstigator)
{
_connectionInstigator = instigator;
StartMouseCapture();
}
}
/// <summary>
/// Ends connecting surface objects action.
/// </summary>
/// <param name="end">The end object (eg. end box).</param>
public void ConnectingEnd(IConnectionInstigator end)
{
// Ensure that there was a proper start box
if (_connectionInstigator == null)
{
return;
}
var start = _connectionInstigator;
_connectionInstigator = null;
// Check if boxes are different and end box is specified
if (start == end || end == null)
{
return;
}
// Connect them
if (start.CanConnectWith(end))
{
start.Connect(end);
}
}
/// <summary>
/// Callback for surface objects connections instigators to indicate mouse over control event (used to draw preview connections).
/// </summary>
/// <param name="instigator">The instigator.</param>
public void ConnectingOver(IConnectionInstigator instigator)
{
_lastInstigatorUnderMouse = instigator;
}
