/// <summary>
/// ChangeRule: typeof(CardinalityConstraint), FireTime=TopLevelCommit, Priority=DiagramFixupConstants.ResizeParentRulePriority;
/// Rule to watch the CardinalityConstraint.TextChanged property so that we can
/// update text as needed. TextChanged is triggered when the CardinalityConstraint is
/// first added, so this is sufficient for updating.
/// </summary>
private static void CardinalityConstraintTextChangedRule(ElementPropertyChangedEventArgs e)
{
if (e.DomainProperty.Id == CardinalityConstraint.TextChangedDomainPropertyId)
{
CardinalityConstraint constraint = (CardinalityConstraint)e.ModelElement;
if (!constraint.IsDeleted)
{
foreach (ShapeElement pel in PresentationViewsSubject.GetPresentation(constraint))
{
CardinalityConstraintShape cardinalityConstraintShape = pel as CardinalityConstraintShape;
if (cardinalityConstraintShape != null)
{
cardinalityConstraintShape.InvalidateDisplayText();
}
}
}
}
}
/// <summary>
/// Code that handles retrieval of the text to display in CardinalityConstraintShape while editing.
/// </summary>
public sealed override string GetDisplayText(ShapeElement parentShape)
{
CardinalityConstraintShape parentCardinalityConstraintShape = parentShape as CardinalityConstraintShape;
return((parentCardinalityConstraintShape != null) ? parentCardinalityConstraintShape.DisplayText : base.GetDisplayText(parentShape));
}