public IBinding Test( ISpatialBinding binding, IDictionary<IWindowElement, Rect> setToChallenge, double radius )
{
if( _lock == true ) throw new ApplicationException( "You must check the state before perform a hit test" );
Rect bindingRect = setToChallenge[binding.Window];
ICollection<IWindowElement> boundWindows = binding.AllDescendants().Select( x => x.Window ).ToArray();
IWindowElement otherWindow = null;
Rect r = Rect.Empty;
foreach( var item in setToChallenge )
{
otherWindow = item.Key;
// If in all registered windows a window intersect with the one that moved
if( otherWindow != binding.Window && !boundWindows.Contains( otherWindow ) )
{
r = setToChallenge[otherWindow];
if( !r.IntersectsWith( bindingRect ) )
{
//TOP
Rect rectTop = new Rect( r.X, r.Y - radius, r.Width, radius );
//BOTTOM
Rect rectBot = new Rect( r.X, r.Y + r.Height, r.Width, radius );
//LEFT
Rect rectLeft = new Rect( r.X - radius, r.Y, radius, r.Height );
//RIGHT
Rect rectRight = new Rect( r.X + r.Width, r.Y, radius, r.Height );
if( rectTop.IntersectsWith( bindingRect ) )
{
_lastResult = new HitTestResult( binding.Window, otherWindow, BindingPosition.Top );
return _lastResult;
}
else if( rectBot.IntersectsWith( bindingRect ) )
{
_lastResult = new HitTestResult( binding.Window, otherWindow, BindingPosition.Bottom );
return _lastResult;
}
else if( rectLeft.IntersectsWith( bindingRect ) )
{
_lastResult = new HitTestResult( binding.Window, otherWindow, BindingPosition.Left );
return _lastResult;
}
else if( rectRight.IntersectsWith( bindingRect ) )
{
_lastResult = new HitTestResult( binding.Window, otherWindow, BindingPosition.Right );
return _lastResult;
}
}
}
}
//RegionHelper region = CreateRegion( rect, radius );
//IWindowElement matchedWindow = null;
//Rect intersectArea = GetIntersectionArea( binding, setToChallenge, rect, ref enlargedArea, out matchedWindow );
//if( intersectArea != Rect.Empty )
//{
// Debug.Assert( matchedWindow != null );
// _lastResult = new HitTestResult( matchedWindow, binding.Window, enlargedArea, intersectArea );
// return _lastResult;
//}
return null;
}
private static Rect GetIntersectionArea( ISpatialBinding binding, IDictionary<IWindowElement, Rect> setToChallenge, Rect rect, ref Rect enlargedRectangle, out IWindowElement otherWindow )
{
ICollection<IWindowElement> boundWindows = binding.AllDescendants().Select( x => x.Window ).ToArray();
otherWindow = null;
Rect rectWindow = setToChallenge[binding.Window];
foreach( var item in setToChallenge )
{
otherWindow = item.Key;
// If in all registered windows a window intersect with the one that moved
if( otherWindow != binding.Window && !boundWindows.Contains( otherWindow ) )
{
rect = setToChallenge[otherWindow];
if( !rectWindow.IntersectsWith( rect ) && rect.IntersectsWith( enlargedRectangle ) ) return Rect.Intersect( enlargedRectangle, rect );
}
}
return Rect.Empty;
}