internal Adorner3D GetHitAdorner3D(AdornerSet3DContainer layer, Point point)
{
this.hitTestParameters3D = new PointHitTestParameters(point);
this.hitObject = (RectangleHitTestResult)null;
VisualTreeHelper.HitTest((Visual)layer, new HitTestFilterCallback(this.FilterPotentialHit), new HitTestResultCallback(this.ProcessHitTestResult3D), (HitTestParameters)this.hitTestParameters3D);
if (this.hitObject != null)
{
ModelVisual3D modelVisual3D1 = (ModelVisual3D)null;
foreach (DependencyObject dependencyObject in this.hitObject.HitPath)
{
ModelVisual3D modelVisual3D2 = dependencyObject as ModelVisual3D;
if (modelVisual3D2 != null)
{
modelVisual3D1 = modelVisual3D2;
break;
}
}
Adorner3D associatedAdorner = layer.GetAssociatedAdorner(modelVisual3D1);
if (associatedAdorner != null)
{
return(associatedAdorner);
}
}
return((Adorner3D)null);
}
private HitTestFilterBehavior FilterPotentialHit(DependencyObject testObject)
{
Viewport3DVisual viewportVisual = testObject as Viewport3DVisual;
if (viewportVisual == null)
{
return(HitTestFilterBehavior.ContinueSkipSelf);
}
RectangleHitTestResult closestHitTestResult = new Viewport3DHitTestHelper(viewportVisual, (GeneralTransform)Transform.Identity).HitTest((HitTestParameters)this.hitTestParameters3D).ClosestHitTestResult;
if (closestHitTestResult == null)
{
return(HitTestFilterBehavior.ContinueSkipSelfAndChildren);
}
this.hitObject = closestHitTestResult;
return(HitTestFilterBehavior.Stop);
}
