Rectangle GetUpdatedRegionAndCleanUpAffectedObjects()
{
Rectangle rect = Rectangle.CreateAnEmptyBox();
var affectedObjectList = new List <IViewerObject>(CurrentUndoAction.AffectedObjects);
foreach (var ivObj in affectedObjectList)
{
var inode = ivObj as IViewerNode;
if (inode == null)
{
continue;
}
var node = (GeomNode)inode.DrawingObject.GeometryObject;
NodeRestoreData nrd = (NodeRestoreData)CurrentUndoAction.GetRestoreData(node);
var oldBoundingBox = nrd.BoundaryCurve.BoundingBox;
if (!oldBoundingBox.Equals(node.BoundingBox))
{
rect.Add(node.BoundingBox);
rect.Add(oldBoundingBox);
}
else
{
CurrentUndoAction.RemoveAffectedObject(ivObj);
}
}
foreach (var e in edgesDraggedWithSource.Concat(edgesDraggedWithTarget))
{
rect.Add(e.BoundingBox);
}
rect.Pad(layoutSettings.EdgeRoutingSettings.Padding);
return(rect);
}
static internal void DragNode(GeomNode node, Point delta, NodeRestoreData restoreData)
{
node.BoundaryCurve = restoreData.BoundaryCurve.Translate(delta);
node.Center = restoreData.Center + delta;
}