/// <summary>
/// Ensures that the parent is corret and that the child is not child of another container anymore.
/// </summary>
/// <param name="child"></param>
protected void EnsureParent(IGuiElement child)
{
if (child.GetParent() != null)
{
child.GetParent().RemoveChild(child);
}
child.SetParent(this);
}
/// <summary>
/// Removes the child.
/// </summary>
/// <param name="component">The component.</param>
/// <param name="destroy">if set to <c>true</c> [destroy].</param>
public void RemoveChild(IGuiElement component, bool destroy = false)
{
if (HasChild(component))
{
// NOTICE: RemovedFromStage is dispatch in SetStage() for the component and all its children
// @see SetStage() of the this class and of AbstractGuiElement
_children.Remove(component);
component.SetParent(null);
component.SetStage(null);
if (destroy)
{
component.Destroy();
}
}
}
/// <summary>
/// Replace a child with another gui element.
/// If 'which' is no child nothing is done.
/// </summary>
/// <param name="which">which child to remove</param>
/// <param name="with">to replace with</param>
/// <param name="destroyRemoved">true to destroy the removed child</param>
/// <see cref="IGuiElement.Destroy" />
public void ReplaceChild(IGuiElement which, IGuiElement with, bool destroyRemoved = false)
{
if (HasChild(which))
{
var index = _children.IndexOf(which);
_children[index] = with;
EnsureParent(with);
with.SetStage(GetStage());
which.SetParent(null);
which.SetStage(null);
if (destroyRemoved)
{
which.Destroy();
}
}
}