/// <summary>
/// Requests that the visual children of the panel use another control as their logical
/// parent.
/// </summary>
/// <param name="logicalParent">
/// The logical parent for the visual children of the panel.
/// </param>
/// <param name="children">
/// The <see cref="ILogical.LogicalChildren"/> collection to modify.
/// </param>
void IReparentingControl.ReparentLogicalChildren(ILogical logicalParent, IPerspexList<ILogical> children)
{
Contract.Requires<ArgumentNullException>(logicalParent != null);
Contract.Requires<ArgumentNullException>(children != null);
_childLogicalParent = logicalParent;
RedirectLogicalChildren(children);
foreach (var control in Children)
{
((ISetLogicalParent)control).SetParent(null);
((ISetLogicalParent)control).SetParent((IControl)logicalParent);
children.Add(control);
}
}
/// <summary>
/// Requests that the visual children of the panel use another control as their logical
/// parent.
/// </summary>
/// <param name="logicalParent">
/// The logical parent for the visual children of the panel.
/// </param>
/// <param name="children">
/// The <see cref="ILogical.LogicalChildren"/> collection to modify.
/// </param>
void IReparentingControl.ReparentLogicalChildren(ILogical logicalParent, IPerspexList <ILogical> children)
{
Contract.Requires <ArgumentNullException>(logicalParent != null);
Contract.Requires <ArgumentNullException>(children != null);
_childLogicalParent = logicalParent;
RedirectLogicalChildren(children);
foreach (var control in Children)
{
((ISetLogicalParent)control).SetParent(null);
((ISetLogicalParent)control).SetParent((IControl)logicalParent);
children.Add(control);
}
}
private static void UpdateLogicalChild(
IPerspexList <ILogical> logicalChildren,
object oldValue,
object newValue)
{
if (oldValue != newValue)
{
var logical = oldValue as ILogical;
if (logical != null)
{
logicalChildren.Remove(logical);
}
logical = newValue as ILogical;
if (logical != null)
{
logicalChildren.Add(logical);
}
}
}
private static void UpdateLogicalChild(
IControl control,
IPerspexList <ILogical> logicalChildren,
object oldValue,
object newValue)
{
if (oldValue != newValue)
{
var child = oldValue as IControl;
if (child != null)
{
logicalChildren.Remove(child);
}
child = newValue as IControl;
if (child != null)
{
child.SetValue(Control.TemplatedParentProperty, control.TemplatedParent);
logicalChildren.Add(child);
}
}
}
/// <summary>
/// Makes the control use a different control's logical children as its own.
/// </summary>
/// <param name="collection">The logical children to use.</param>
protected void RedirectLogicalChildren(IPerspexList <ILogical> collection)
{
_logicalChildren = collection;
}
