public void Apply(Rect layoutRect, ViewItem rootItem)
{
var center = new Point(layoutRect.Width / 2, layoutRect.Height / 2);
LayoutPositions = new Dictionary<ViewItem, Point>();
PositionItem(rootItem, center);
}
private void PositionItem(ViewItem parent, Point position)
{
LayoutPositions[parent] = position;
}
private void ClearContainer(ViewItem container)
{
ItemMap.Remove(container.Content);
container.Content = null;
}
public void RemoveItemContainer(ViewItem container)
{
ItemsContainer.Children.Remove(container);
}
internal void AddItemContainer(ViewItem container)
{
ItemsContainer.Children.Add(container);
}
private void SetRootItem(object newValue)
{
if (RootItem != null)
{
RootItem.Owner = null;
RootItem.ClearValue(ViewItem.ItemsSourceProperty);
ItemsContainer.Children.Remove(RootItem);
}
if (ItemsContainer != null)
{
RootItem = new ViewItem()
{
Content = newValue,
ContentTemplate = ItemTemplate,
Owner = this
};
if (ItemTemplate is HierarchicalDataTemplate)
{
var binding = (ItemTemplate as HierarchicalDataTemplate).ItemsSource;
BindingOperations.SetBinding(RootItem, ViewItem.ItemsSourceProperty, binding);
}
ItemsContainer.Children.Add(RootItem);
}
}
internal void AddItemContainer(ViewItem container)
{
ItemsContainer.Children.Add(container);
}
public void SetSelection(ViewItem ViewItem)
{
if (_selectedContainer == ViewItem) return; // clicked on already selected instance
if (_selectedContainer != null)
{
_selectedContainer.IsSelected = false;
}
_selectedContainer = ViewItem;
_selectedContainer.IsSelected = true;
SelectedItem = ViewItem.Content;
}
public void RemoveItemContainer(ViewItem container)
{
ItemsContainer.Children.Remove(container);
}
private void PositionItem(ViewItem parent, Point position)
{
LayoutPositions[parent] = position;
}
private void PrepareContainer(object modelItem)
{
var container = new ViewItem
{
Content = modelItem,
Owner = Owner
};
// Template
if (ContentTemplate is HierarchicalDataTemplate)
{
var hTemplate = ContentTemplate as HierarchicalDataTemplate;
container.ContentTemplate = hTemplate.ItemTemplate;
var binding = hTemplate.ItemsSource;
BindingOperations.SetBinding(container, ItemsSourceProperty, binding);
container.DataContext = modelItem;
}
// Positioning
//Dispatcher.BeginInvoke(() =>
//{
// var location = new Point(Canvas.GetLeft(this), Canvas.GetTop(this));
// location.X += ActualWidth;
// location.Y += ActualHeight;
// container.MoveItemBy(location, true);
//});
}
private void ClearContainer(ViewItem container)
{
ItemMap.Remove(container.Content);
container.Content = null;
}
