Copyright 1992 Digital Equipment Corporation.
Distributed only by permission.
Last modified on Fri Aug 7 17:25:18 PDT 1992 by mhb
INTERFACE PackingView2;
IMPORT BinpackViewClass, GraphVBT;
Displays the packing of the weights within each bin. The view
is non-pickable. However, unlike PackingView1, this view does
respond to the RepackBin update event. As such, the
implementation maintains a list of the display objects
corresponding to each weight. This interface exposes a TYPE
for this view, in order to be subclassed. The implementation
guarantees that Filter.Child(v:T) is a GraphVBT.T that is
returned by the createGraph method, and each weight is
displayed as an object of type Weight in the GraphVBT.T.
TYPE
Weight = GraphVBT.Vertex OBJECT
id : CARDINAL;
amt: REAL
END;
T <: Public;
Public = BinpackViewClass.T OBJECT
curr: Weight; (* set by oeSetup *)
METHODS
createGraph (nBins, nWts: INTEGER): GraphVBT.T;
(* Called in oeSetup method to return a newly
allocated and initialized GraphVBT. LL=0. *)
createWeight (id: INTEGER; amt: REAL): Weight;
(* Called in oeNewWeight method to return a newly
created and initialized Weight. LL=0. *)
END;
END PackingView2.