plugins/org.argeo.slc.client.ui.dist/src/main/java/org/argeo/slc/client/ui/dist/controllers/DistTreeComparator.java

   1 package org.argeo.slc.client.ui.dist.controllers;
   2
   3 import org.argeo.slc.client.ui.dist.model.DistParentElem;
   4 import org.argeo.slc.client.ui.dist.model.RepoElem;
   5 import org.argeo.slc.client.ui.dist.model.WkspGroupElem;
   6 import org.argeo.slc.client.ui.dist.model.WorkspaceElem;
   7 import org.eclipse.jface.viewers.Viewer;
   8 import org.eclipse.jface.viewers.ViewerComparator;
   9
  10 /** Specific comparator to enhance Distribution tree browsers */
  11 public class DistTreeComparator extends ViewerComparator {
  12
  13         public int category(Object element) {
  14                 if (element instanceof RepoElem)
  15                         if (((RepoElem) element).inHome())
  16                                 // Home repository always first
  17                                 return 2;
  18                         else
  19                                 return 5;
  20                 else if (element instanceof WkspGroupElem)
  21                         return 10;
  22                 else if (element instanceof WorkspaceElem)
  23                         return 15;
  24                 else
  25                         return 20;
  26         }
  27
  28         public int compare(Viewer viewer, Object e1, Object e2) {
  29                 int cat1 = category(e1);
  30                 int cat2 = category(e2);
  31
  32                 if (cat1 != cat2) {
  33                         return cat1 - cat2;
  34                 }
  35
  36                 String s1, s2;
  37
  38                 if (e1 instanceof DistParentElem) {
  39                         s1 = ((DistParentElem) e1).getName();
  40                         s2 = ((DistParentElem) e2).getName();
  41                 } else {
  42                         s1 = e1.toString();
  43                         s2 = e2.toString();
  44                 }
  45
  46                 if (e1 instanceof WorkspaceElem)
  47                         // Reverse order for versions
  48                         return s2.compareTo(s1);
  49                 else
  50                         return s1.compareTo(s2);
  51         }
  52 }