ini/trakem2/display/DoStep.java

   1 package ini.trakem2.display;
   2
   3 public interface DoStep {
   4
   5         // The actions accepted by apply(int)
   6         static public final int UNDO = 0;
   7         static public final int REDO = 1;
   8
   9         /** Returns true on success. */
  10         public boolean apply(int action);
  11
  12         public boolean isEmpty();
  13
  14         /** May return null. */
  15         public Displayable getD();
  16
  17         public boolean isIdenticalTo(Object ob); // bypassing equals
  18 }