public boolean isEnabled()

in designer/src/com/android/tools/idea/uibuilder/handlers/constraint/ConstraintLayoutHandler.java [1128:1177]
50 lines of code
42 McCabe index (conditional complexity)

    public boolean isEnabled(List<NlComponent> selected) {
      int count = selected.size();
      switch (myActionType) {
        case AlignVerticallyTop:
        case AlignVerticallyMiddle:
        case AlignVerticallyBottom:
        case AlignHorizontallyLeft:
        case AlignHorizontallyCenter:
        case AlignHorizontallyRight:
        case DistributeVertically:
        case DistributeHorizontally:
        case VerticalPack:
        case HorizontalPack:
        case AlignBaseline:
          return count > 1;
        case CreateHorizontalChain:
          return count > 1 && !Scout.chainCheck(selected, Scout.ChainTest.InHorizontalChain);
        case CreateVerticalChain:
          return count > 1 && !Scout.chainCheck(selected, Scout.ChainTest.InVerticalChain);
        case ExpandVertically:
        case ExpandHorizontally:
        case CenterHorizontallyInParent:
        case CenterVerticallyInParent:
        case CenterVertically:
        case CenterHorizontally:
          return count >= 1;
        case ChainHorizontalMoveLeft:
          return count == 1 && Scout.chainCheck(selected, Scout.ChainTest.InHorizontalChain) &&
                 !Scout.chainCheck(selected, Scout.ChainTest.IsTopOfChain);
        case ChainVerticalMoveDown:
          return count == 1 && Scout.chainCheck(selected, Scout.ChainTest.InVerticalChain) &&
                 !Scout.chainCheck(selected, Scout.ChainTest.IsBottomOfChain);
        case ChainVerticalMoveUp:
          return count == 1 && Scout.chainCheck(selected, Scout.ChainTest.InVerticalChain) &&
                 !Scout.chainCheck(selected, Scout.ChainTest.IsTopOfChain);
        case ChainHorizontalMoveRight:
          return count == 1 && Scout.chainCheck(selected, Scout.ChainTest.InHorizontalChain) &&
                 !Scout.chainCheck(selected, Scout.ChainTest.IsBottomOfChain);
        case ChainHorizontalRemove:
          return count == 1 && Scout.chainCheck(selected, Scout.ChainTest.InHorizontalChain);
        case ChainVerticalRemove:
          return count == 1 && Scout.chainCheck(selected, Scout.ChainTest.InVerticalChain);
        case ChainInsertHorizontal:
          return count == 1 && Scout.chainCheck(selected, Scout.ChainTest.IsNearHorizontalChain);
        case ChainInsertVertical:
          return count == 1 && Scout.chainCheck(selected, Scout.ChainTest.IsNearVerticalChain);
        default:
          return false;
      }
    }