override public void OnBeforeShapeDelete()
{
// clean up our connections to other states - ConnectDelete is not called when the shape is deleted
Connect c = GetConnect(false);
if (c == null)
{
return;
}
// determine which end of the connector is connected to the nonConnectorShadow
// In this case, it's always the c.FromCell that tells us
bool arrowSide = false;
if (c.FromCell.Name.Equals(Strings.EndConnectionPointCellName))
{
arrowSide = true;
}
Shadow connectedToShadow = PathMaker.LookupShadowByShape(c.ToSheet);
if (connectedToShadow != null)
{
if (arrowSide)
{
connectedToShadow.OnConnectDeleteInput(this);
}
else
{
connectedToShadow.OnConnectDeleteOutput(this);
}
}
else
{
Common.ErrorMessage("Connector goes to unknown shape " + c.ToSheet.Name);
}
}
void OnConnectDelete(Connects connects)
{
if (SuspendConnectHandlingToMoveAConnectionPoint)
{
return;
}
foreach (Connect c in connects)
{
// each connection should be between a 1D shape (connector or comment) and a 2D shape (everything else)
// seems like the fromsheet is always the 1D shape but this should be bulletproof if it changes
Shape connector = null;
Shape nonConnector = null;
if (c.FromSheet.OneD != 0)
{
connector = c.FromSheet;
}
else
{
nonConnector = c.FromSheet;
}
if (connector == null && c.ToSheet.OneD != 0)
{
connector = c.ToSheet;
}
else if (nonConnector == null && c.ToSheet.OneD == 0)
{
nonConnector = c.ToSheet;
}
// not sure what it is but we don't care about it
if (connector == null || nonConnector == null)
{
return;
}
Shadow connectorShadow = LookupShadowByShape(connector);
Shadow nonConnectorShadow = LookupShadowByShape(nonConnector);
if (connectorShadow == null || nonConnectorShadow == null)
{
Common.ErrorMessage("Deleting connection from invalid shapes...");
return;
}
// an ignored shadow (like a comment) can sometimes have links
// but shouldn't be added as a transition - it's irrelevant
IgnoredShadow ignored = connectorShadow as IgnoredShadow;
if (ignored != null)
{
return;
}
// determine which end of the connector is connected to the nonConnectorShadow
bool arrowSide = false;
if (c.FromCell.Name.Equals(Strings.EndConnectionPointCellName))
{
arrowSide = true;
}
if (arrowSide)
{
connectorShadow.OnConnectDeleteOutput(nonConnectorShadow);
nonConnectorShadow.OnConnectDeleteInput(connectorShadow);
}
else
{
connectorShadow.OnConnectDeleteInput(nonConnectorShadow);
nonConnectorShadow.OnConnectDeleteOutput(connectorShadow);
}
}
FixHourGlassAfterConfusingVisio();
}