/// <summary>
/// Adds an item to the circuit and adds the step to the stack.
/// </summary>
/// <param name="item"></param>
/// <returns>True if successful, false if not.</returns>
public bool addItem(Item item)
{
Step step = new Step();
Action action = new Action(circuit, Action.ActionType.add, item);
step.addAction(action);
if (step.execute())
{
addStep(step);
return true;
}
else
{
return false;
}
}
private void addStep(Step step)
{
deleteUndoneSteps();
steps.Add(step);
indexNextRedo = steps.Count(); // Will be out of bounds
}
/// <summary>
/// Deletes a connection and add a step to the stack
/// </summary>
/// <param name="connection">The connection that will be deleted</param>
/// <returns>True if succesful, false if not</returns>
public bool deleteConnection(Connection connection)
{
Step step = new Step();
Action action = new Action(circuit, Action.ActionType.delete, connection);
step.addAction(action);
if (step.execute())
{
addStep(step);
return true;
}
else
{
return false;
}
}
/// <summary>
/// Changes source from 0 to 1 and vice versa.
/// </summary>
/// <param name="source"></param>
public void toggle(IToggleable toggable)
{
Step step = new Step();
Action action = new Action(circuit, Action.ActionType.toggle, toggable);
step.addAction(action);
step.execute();
addStep(step);
}
/// <summary>
/// Deletes an item from the circuit and adds the step to the stack.
/// </summary>
/// <param name="item">The item that will be deleted</param>
/// <returns> True if successful, false if not.</returns>
public bool deleteItem(Item item)
{
Step step = new Step();
List<Connection> associatedConnections = circuit.getAssociatedConnections(item);
foreach (Connection associatedConnection in associatedConnections)
{
Action deleteAssociatedConnection = new Action(circuit, Action.ActionType.delete, associatedConnection);
step.addAction(deleteAssociatedConnection);
}
Action action = new Action(circuit, Action.ActionType.delete, item);
step.addAction(action);
if (step.execute())
{
addStep(step);
return true;
}
else
{
return false;
}
}