public void Delete([NotNull] IShape shape)
{
Assert.ArgumentNotNull(shape, nameof(shape));
Canvas.Children.Remove(shape as FrameworkElement);
RemoveSelectedItem(shape);
if (!Shapes.Any())
{
Empty.Visibility = Visibility.Visible;
Canvas.Visibility = Visibility.Collapsed;
}
}
public override IntersectionCollection LocalIntersect(Ray localRay)
{
if (!Shapes.Any() || !HitsBoundingBox(localRay))
{
return(new IntersectionCollection());
}
var xs = Shapes
.SelectMany(shape => shape.Intersect(localRay).Intersections)
.OrderBy(intersection => intersection.T);
return(new IntersectionCollection(xs));
}
private void SyncBrushesWithShapes()
{
if (_context?.Factory == null || Shapes == null)
{
return;
}
//add any missing brushes
foreach (var instance in Shapes)
{
foreach (var color in instance.GetColorsToCache())
{
if (!_brushResources.ContainsKey(color))
{
//color missing, add it
var solidBrush = new SolidColorBrush(_context, color.ToDirect2dColor());
_brushResources.Add(color, solidBrush);
}
}
}
var colorsToDelete = new List <Wpf.Color>();
//delete any brushes not in use anymore
foreach (var color in _brushResources.Keys)
{
bool colorFound = Shapes.Any(instance => instance.GetColorsToCache().Contains(color));
if (!colorFound)
{
colorsToDelete.Add(color);
}
}
//remove brushes to be deleted
foreach (var color in colorsToDelete)
{
var brush = _brushResources[color];
_brushResources.Remove(color);
brush.Dispose();
}
}
public override bool Contains(Shape other)
{
return(Shapes.Any(x => x.Contains(other)));
}
private bool DoesShapesContainInitialNode()
{
return(Shapes.Any(shape => shape.Type == EShape.Initial));
}
public override bool Contains(IShape shape)
{
return(ReferenceEquals(shape, this) || Shapes.Any(s => s.Contains(shape)));
}
private void UpdateUndoRedo()
{
CanUndo = Shapes.Any();
CanRedo = _undoneShapes.Any();
}
private bool CanGetPermiter(object param)
{
return(Shapes.Any());
}
bool IResourceProvider.ContainsResource(string resourceName)
{
return(Shapes.Any(s => s.Name == resourceName) || Animations.Any(a => a.Name == resourceName));
}
