public ReadOnlyCollection <IFigure> HitTestMany(Point point)
{
List <IFigure> result = new List <IFigure>();
// Changed to use reverse so that more recently added figures appear earlier in the result. - D.H. 6/29/2011
var reverse = this.Reverse();
foreach (var item in reverse)
{
IFigure found = item.HitTest(point);
if (found != null && found.Visible && found.IsHitTestVisible)
{
result.Add(found);
}
}
if (result.Count > 0)
{
// Use a stable sorting method. Higher zIndexes should occur earlier in results. - D.H. 6/29/2011
FigureList.StableSort(result, (f1, f2) => f2.ZIndex.CompareTo(f1.ZIndex));
// .NET collections sort is unstable (does not preserve order if comparison value is the same).
//result.Sort((f1, f2) => f1.ZIndex.CompareTo(f2.ZIndex));
}
return(result.AsReadOnly());
}
public FigureCreator()
{
FoundDependencies = new FigureList();
ExpectedDependencies = InitExpectedDependencies();
}
protected override void Reset()
{
base.Reset();
FoundDependencies = new FigureList();
RemoveTempPoint();
}