private void SnapshotDraggedElements(SceneView view, Point referencePoint)
{
List <Point> list1 = new List <Point>();
List <CanonicalTransform> list2 = new List <CanonicalTransform>();
List <LayoutCacheRecord> list3 = new List <LayoutCacheRecord>();
Rect empty = Rect.Empty;
foreach (BaseFrameworkElement element in this.DraggedElements)
{
element.GetComputedTightBounds();
Point point = view.TransformPoint((IViewObject)view.HitTestRoot, element.Visual, referencePoint);
list1.Add(point);
list2.Add(new CanonicalTransform((Transform)element.GetComputedValueAsWpf(Base2DElement.RenderTransformProperty))
{
Center = element.RenderTransformOriginInElementCoordinates
});
if (element.ViewObject != null)
{
LayoutCacheRecord layoutCacheRecord = this.ActiveView.ViewModel.GetLayoutDesignerForChild((SceneElement)element, true).CacheLayout(element);
list3.Add(layoutCacheRecord);
empty.Union(layoutCacheRecord.Rect);
}
}
this.Offsets = list1.AsReadOnly();
this.BaseRenderTransforms = list2.AsReadOnly();
this.LayoutCacheRecords = list3.AsReadOnly();
this.BoundsOfAllElements = empty;
}
public void SetLayoutFromCache(BaseFrameworkElement element, LayoutCacheRecord layoutCacheRecord, Rect boundsOfAllCaches)
{
LayoutConstraintMode widthConstraintMode = this.GetWidthConstraintMode(element);
int num = (int)this.GetHeightConstraintMode(element);
this.ClearUnusedLayoutProperties(element);
if (layoutCacheRecord == null)
{
return;
}
using (element.ViewModel.EnforceGridDesignMode)
{
Rect rect = layoutCacheRecord.Rect;
if ((widthConstraintMode & LayoutConstraintMode.Overlapping) != LayoutConstraintMode.NonOverlappingGridlike)
{
this.SetChildRect(element, rect, layoutCacheRecord.Overrides, LayoutOverrides.None, LayoutOverrides.None, SetRectMode.Default);
}
else if (layoutCacheRecord.Overlapping)
{
if (!boundsOfAllCaches.IsEmpty)
{
rect.Offset(-boundsOfAllCaches.Left, -boundsOfAllCaches.Top);
}
this.SetChildRect(element, rect, layoutCacheRecord.Overrides, LayoutOverrides.Margin, LayoutOverrides.None, SetRectMode.CreateAtSlotPosition);
}
else
{
rect.Offset(-layoutCacheRecord.SlotOrigin.X, -layoutCacheRecord.SlotOrigin.Y);
this.SetChildRect(element, rect, layoutCacheRecord.Overrides, LayoutOverrides.None, LayoutOverrides.None, SetRectMode.CreateAtSlotPosition);
}
}
}
public void SetCurrentRects(BaseFrameworkElement parent, List <LayoutCacheRecord> layoutCache)
{
ISceneNodeCollection <SceneNode> defaultContent = parent.DefaultContent;
if (layoutCache.Count != defaultContent.Count)
{
return;
}
using (parent.ViewModel.EnforceGridDesignMode)
{
for (int index = 0; index < defaultContent.Count; ++index)
{
BaseFrameworkElement element = defaultContent[index] as BaseFrameworkElement;
if (element != null && !PlatformTypes.ContextMenu.IsAssignableFrom((ITypeId)element.Type) && element.IsViewObjectValid)
{
LayoutCacheRecord layoutCacheRecord = layoutCache[index];
this.SetLayoutFromCache(element, layoutCacheRecord, Rect.Empty);
}
}
}
}
