/// <summary>
/// Recompoute join path for given join
/// </summary>
/// <param name="join">Join which path will be recomputed</param>
private void refreshJoinPath(JoinDrawing join)
{
//TODO avoid uneccessary path finding
Navigator = new SceneNavigator(Items);
Navigator.EnsureGraphInitialized();
if (Output.DiagramContext.Diagram.UseJoinAvoidance)
{
Navigator.Graph.Explore(join.From, join.To);
join.PointPath = Navigator.Graph.FindPath(join.From, join.To);
}
else
{
join.PointPath = new[] { join.From.GlobalConnectPoint, join.To.GlobalConnectPoint };
}
}
/// <summary>
/// Add join into <see cref="Output"/>
/// </summary>
/// <param name="join">Added join</param>
/// <param name="fromItem">Owner of join start connector</param>
/// <param name="toItem">Owner of join end connector</param>
internal void AddJoin(JoinDrawing join, DiagramItem fromItem, DiagramItem toItem)
{
var from = fromItem.GetConnector(join.Definition.From);
var to = toItem.GetConnector(join.Definition.To);
join.From = from;
join.To = to;
FollowConnectorPosition.Attach(from, this, (p) =>
{
refreshJoinPath(join);
});
FollowConnectorPosition.Attach(to, this, (p) =>
{
refreshJoinPath(join);
});
_joins.Add(join);
Output.AddJoin(join);
}
/// <summary>
/// Adds the join to the canvas.
/// </summary>
/// <param name="join">The join.</param>
internal void AddJoin(JoinDrawing join)
{
Children.Add(join);
}