public override Vector2 Measure()
{
if (Size.HasValue)
return Size.Value;
// Clear out any existing children and pseudo-invalidate the panel
generatedPanel = ItemsPanelTemplate == null ? new StackPanel() : ItemsPanelTemplate.GenerateItem(DataContext) as Panel;
generatedPanel.Parent = this;
if (ItemsSource == null || ItemsSource.OfType<object>().Count() == 0)
{
// If there are no items, then go ahead and return zero
Size = Vector2.zero;
return Vector2.zero;
}
// Now let's add back in any children items we need
foreach (var item in ItemsSource)
generatedPanel.AddChild(ItemTemplate.GenerateItem(item));
// Now let's measure the size of the panel
var size = generatedPanel.Measure();
Size = size;
return size;
}
private static void LoadPanel(Panel panel, XmlNode panelXml, object viewModel)
{
var currentAssembly = loadedTypes.Keys.FirstOrDefault();
foreach (var childNode in panelXml.ChildNodes.OfType<XmlNode>())
{
Type childType = null;
if (string.IsNullOrEmpty(childNode.NamespaceURI))
childType = loadedTypes[currentAssembly].FirstOrDefault(t => t.Name == childNode.LocalName);
else
{
var typeName = string.Format("{0}.{1}", childNode.NamespaceURI, childNode.LocalName);
// I think we get away with this for right now, because importing UPF into your project doesn't
// produce multiple dlls, you still just get the Assembly-CSharp.dll
var assembly = Assembly.GetExecutingAssembly();
childType = loadedTypes[assembly].FirstOrDefault(t => t.FullName == typeName);
}
if (childType != null)
{
var child = Activator.CreateInstance(childType);
panel.AddChild(child as Control);
// Load attributes first, in case this is a panel
LoadAttributes(child as Control, childNode, viewModel);
if (child is Panel)
LoadPanel(child as Panel, childNode, viewModel);
}
else
Debug.LogError("Could not locate class for type: " + childNode.LocalName);
}
}