Describes how content bounds are restricted during pan and zoom operations.
public enum ContentBoundsMode
kind:method, kind:property, kind:ctor. Press Esc to clear.CustomRestrict the viewport and calculate scrollbar extents from the rectangle returned by GetContentBounds(). Subclasses can additionally veto the final transform by overriding ValidateTransform(Matrix).FillViewportNever show empty space. Content always fills the viewport.KeepCenteredKeep content centered within the viewport when possible.KeepContentVisibleKeep at least some content visible at all times.UnrestrictedNo bounds checking. Content can be panned completely out of view.