/// <summary>
/// Recursively subscribes to path changes.
/// </summary>
/// <param name="steps"></param>
static void Subscribe(ModelStepList steps)
{
foreach (var step in steps)
{
step.Property.Observers.Add(step);
Subscribe(step.NextSteps);
}
}
/// <summary>
/// Recursively unsubscribes to path changes.
/// </summary>
/// <param name="steps"></param>
static void Unsubscribe(ModelStepList steps)
{
foreach (var step in steps)
{
step.Property.Observers.Remove(step);
Unsubscribe(step.NextSteps);
}
}
/// <summary>
/// Recursively loads a path in the model by walking steps.
/// </summary>
/// <param name="instance"></param>
/// <param name="step"></param>
/// <param name="model"></param>
void GetInstances(ModelInstance instance, ModelStepList steps, HashSet <ModelInstance> model)
{
// Add the instance to the model
model.Add(instance);
// Process each child step
foreach (var step in steps)
{
// Process each instance
foreach (var child in step.GetInstances(instance))
{
GetInstances(child, step.NextSteps, model);
}
}
}