/// <summary>
/// Converts shape of <see cref="Rect"/> to a List of <see cref="Point"/>
/// </summary>
public static List <Point> ToPoints(this Rect rect)
{
var points = new List <Point>();
points.Add(rect.TopLeft());
points.Add(rect.TopRight());
points.Add(rect.BottomRight());
points.Add(rect.BottomLeft());
//points.Add(rect.TopLeft());
return(points);
}
/// <summary>
/// Snaps the lower left corner of the specified rectangle to the nearest bounds.
/// </summary>
/// <param name="rect">The rectangle.</param>
/// <returns>New position.</returns>
public Point SnapBottomLeftCorner(Rect rect)
{
Point point = rect.BottomLeft();
if (SnapinEnabled)
{
Distance minDistance = new Distance();
foreach (var bound in SnapinBounds)
{
Distance distance = new Distance()
{
X = DistanceBetweenLeftEdgeAndRectangle(rect, bound),
Y = DistanceBetweenBottomEdgeAndRectangle(rect, bound)
};
minDistance = Distance.Min(distance, minDistance);
}
point = point.Add(minDistance);
}
return point;
}
void Page_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
if(_dragged != null)
{
//Set correct Z-index
Rect r = new Rect(Canvas.GetLeft(_dragged), Canvas.GetTop(_dragged), _dragged.Width, _dragged.Height);
var t = from uc in _objects
where uc != _dragged && (
uc.ContainsPoint(r.TopLeft()) || uc.ContainsPoint(r.TopRight()) ||
uc.ContainsPoint(r.BottomLeft()) || uc.ContainsPoint(r.BottomRight()))
orderby Canvas.GetZIndex(uc) descending
select uc;
int z;
if(t.Count() > 0)
z = Canvas.GetZIndex(t.FirstOrDefault()) + 1;
else
z = 0;
Canvas.SetZIndex(_dragged, z);
}
_dragged = null;
}