/// <summary>
/// If a new child shape was not placed, then defer to
/// PlaceAsChildOf on the child. Note that AutoResize
/// has not been called on the child prior to this call.
/// </summary>
/// <param name="child">A new child shape element</param>
/// <param name="childWasPlaced">false if the child element was not previously placed.</param>
/// <param name="createdDuringViewFixup">Whether this shape was created as part of a view fixup</param>
protected override void OnChildConfigured(ShapeElement child, bool childWasPlaced, bool createdDuringViewFixup)
{
// Don't check childWasPlaced here during drag-drop. In this case,
// childWasPlace will be true if the parent shape was placed, so is
// only relevant for our code base for the top-level shapes, in which
// case the OnChildConfigured for the dropped shape is called on the
// diagram, not a base shape. Any derived shape that allows placed
// drag from the toolbox (etc) onto child shapes (which none of
// the shapes in ORMShapeDomainModel allow), then childWasPlaced should
// be tested.
if (childWasPlaced)
{
Transaction transaction = Store.TransactionManager.CurrentTransaction.TopLevelTransaction;
if (transaction != null &&
(DropTargetContext.HasDropTargetContext(transaction) ||
transaction.Context.ContextInfo.ContainsKey(ORMBaseShape.PlaceAllChildShapes)))
{
childWasPlaced = false;
}
}
if (!childWasPlaced)
{
ORMBaseShape baseShape;
if (null != (baseShape = child as ORMBaseShape))
{
baseShape.PlaceAsChildOf(this, createdDuringViewFixup);
}
}
}
/// <summary>
/// Stop all auto shape selection on transaction commit except when
/// the item is being dropped.
/// </summary>
public override IList FixUpDiagramSelection(ShapeElement newChildShape)
{
if (DropTargetContext.HasDropTargetContext(Store.TransactionManager.CurrentTransaction))
{
return(base.FixUpDiagramSelection(newChildShape));
}
return(null);
}
/// <summary>
/// Gets the unplaced shapes for auto layout.
/// </summary>
/// <param name="store">The store.</param>
/// <returns></returns>
public static Dictionary <NodeShape, Dictionary <ShapeElement, bool> > GetUnplacedShapesForAutoLayout(Store store)
{
object obj;
store.TransactionManager.CurrentTransaction.TopLevelTransaction.Context.ContextInfo.TryGetValue(
"{FED4CA6E-2FFC-4751-A799-9B3808C384EA}", out obj);
if (obj == null)
{
return(null);
}
List <ModelElement> elements = obj as List <ModelElement>;
Dictionary <NodeShape, Dictionary <ShapeElement, bool> > unplacedShapesMap =
new Dictionary <NodeShape, Dictionary <ShapeElement, bool> >();
foreach (ModelElement element in elements)
{
foreach (PresentationElement pel in PresentationViewsSubject.GetPresentation(element))
{
if (pel is NodeShape)
{
NodeShape shape = pel as NodeShape;
PointD dropLocation =
DropTargetContext.GetDropLocation(
store.TransactionManager.CurrentTransaction.TopLevelTransaction);
shape.AbsoluteBounds =
new RectangleD(dropLocation.X, shape.AbsoluteBounds.Y, shape.AbsoluteBounds.Width,
shape.AbsoluteBounds.Height);
NodeShape parentShape = shape.ParentShape as NodeShape;
if (parentShape != null)
{
Dictionary <ShapeElement, bool> shapeElementMap;
if (!unplacedShapesMap.TryGetValue(parentShape, out shapeElementMap))
{
shapeElementMap = new Dictionary <ShapeElement, bool>();
unplacedShapesMap.Add(parentShape, shapeElementMap);
}
shapeElementMap.Add(shape, true);
}
}
}
}
return(unplacedShapesMap);
}
/// <summary>
/// Construct a <code>DropTargetEvent</code> object with
/// the specified <code>DropTargetContext</code>.
/// <P> </summary>
/// <param name="dtc"> The <code>DropTargetContext</code> </param>
/// <exception cref="NullPointerException"> if {@code dtc} equals {@code null}. </exception>
/// <seealso cref= #getSource() </seealso>
/// <seealso cref= #getDropTargetContext() </seealso>
public DropTargetEvent(DropTargetContext dtc) : base(dtc.DropTarget)
{
Context = dtc;
}
