internal void OnDrop(DiagramCanvasBase dropTarget, DragEventArgs e)
{
DropException = null;
onDrop(dropTarget, e);
/* try
* {
* onDrop(dropTarget, e);
* }
* catch (Exception ex)
* {
* DropException = ex;
* }*/
}
internal void Arrange(IEnumerable <DiagramItem> arrangedItems)
{
//TODO use zGroups on container
var sortedItems = arrangedItems.OrderBy((item) => DiagramCanvasBase.GetZIndex(item));
_navigator = new SceneNavigator();
foreach (var item in sortedItems)
{
var collidingItems = _navigator.GetItemsInCollision(item).ToArray();
foreach (var colidingItem in collidingItems)
{
//move colliding items
moveCollidingItem(item, colidingItem);
}
_navigator.AddItem(item);
}
}
private void onDrop(DiagramCanvasBase dropTarget, DragEventArgs e)
{
DragAdorner = e.Data.GetData("DragAdorner") as DragAdorner;
if (DragAdorner == null)
{
return;
}
E = e;
DropTarget = dropTarget;
E.Handled = true;
CurrentView = Diagram.InitialView;
onDrop();
if (DropTarget.OwnerItem == DragItem)
{
//cant drop self to sub slot
move();
onDropEnd();
return;
}
if (DragItem.ContainingDiagramCanvas == DropTarget)
{
//move within dropTarget canvas
move();
onDropEnd();
return;
}
if (excludeFromParent())
{
acceptItem();
}
onDropEnd();
}