/// <summary>
/// This methods re-routes a moved tasks connections and any other connections that it now intersects.
/// It is called when a task is dragged on the diagram.
/// It is also called when a new task is dropped from the palette.
/// In this case there are no existing connections to the task but it may intersect other connections
/// which will need to be re-routed.
/// </summary>
/// <param name="task"></param>
public void ReRouteTask(TaskObj task)
{
var taskConnectors = Connector.GetConnections(task).ToArray();
var bounds = DiagramView.View.RoundOutToGrid(task.Symbol.Shape.Bounds);
var otherConnectors =
(from c in Connector.Connectors
where !taskConnectors.Contains(c)
where c.HitsRectangle(bounds)
select c).ToList();
// Need to unroute these first or they interfere with the router heuristics
foreach (var connector in taskConnectors)
{
connector.UnRoute();
}
foreach (var connector in otherConnectors)
{
connector.UnRoute();
}
var router = new ConnectionRouter(this);
router.MapConnectors();
foreach (var connector in taskConnectors)
{
router.RouteConnection(connector);
}
foreach (var connector in otherConnectors)
{
router.RouteConnection(connector);
}
}
public FlowObj FindOutflow(TaskObj task, string pinName)
{
if (pinName == "Err")
{
return(task.FailOutflow);
}
return(task.Outflows.Single(f => f.Name == pinName));
}
/// <summary>
/// Create a model with a new workflow
/// </summary>
public Model()
{
Workflow = new WorkflowObj
{
Name = Guid.NewGuid().ToString().Substring(0, 8),
Version = "0.0.0.0",
ObjType = "workflow",
TaskList = "decider",
Tasks = new List <TaskObj>(),
Variables = new VariableCollection()
};
// The single, required start task
var start = new TaskObj
{
TaskId = "start",
ActivityName = "start",
ActivityVersion = "0.0.0.0",
Outflows = new [] { new FlowObj {
Name = "Out"
} },
HiddenProperties = new List <string> {
"AsyncSignal", "Inputs", "Outputs", "TaskList", "HeartbeatTimeout", "ScheduleToCloseTimeout", "ScheduleToStartTimeout", "StartToCloseTimeout", "TaskPriority"
},
Symbol = new SymbolObj
{
Name = "start",
Label = "Start",
Style = "circle",
LocationX = 100,
LocationY = 100
}
};
Workflow.Tasks.Add(start);
CreateWorkflowInputVariables(Workflow);
}