57     private int                rowCount;
  58 
  59     /**
  60      * Used in getting sizes for nodes to avoid creating a new Rectangle
  61      * every time a size is needed.
  62      */
  63     private Rectangle          boundsBuffer;
  64 
  65     /**
  66      * Maps from TreePath to a FHTreeStateNode.
  67      */
  68     private Hashtable<TreePath, FHTreeStateNode> treePathMapping;
  69 
  70     /**
  71      * Used for getting path/row information.
  72      */
  73     private SearchInfo         info;
  74 
  75     private Stack<Stack<TreePath>> tempStacks;
  76 
  77 


  78     public FixedHeightLayoutCache() {
  79         super();
  80         tempStacks = new Stack<Stack<TreePath>>();
  81         boundsBuffer = new Rectangle();
  82         treePathMapping = new Hashtable<TreePath, FHTreeStateNode>();
  83         info = new SearchInfo();
  84         setRowHeight(1);
  85     }
  86 
  87     /**
  88      * Sets the TreeModel that will provide the data.
  89      *
  90      * @param newModel the TreeModel that is to provide the data
  91      */
  92     public void setModel(TreeModel newModel) {
  93         super.setModel(newModel);
  94         rebuild(false);
  95     }
  96 
  97     /**

  57     private int                rowCount;
  58 
  59     /**
  60      * Used in getting sizes for nodes to avoid creating a new Rectangle
  61      * every time a size is needed.
  62      */
  63     private Rectangle          boundsBuffer;
  64 
  65     /**
  66      * Maps from TreePath to a FHTreeStateNode.
  67      */
  68     private Hashtable<TreePath, FHTreeStateNode> treePathMapping;
  69 
  70     /**
  71      * Used for getting path/row information.
  72      */
  73     private SearchInfo         info;
  74 
  75     private Stack<Stack<TreePath>> tempStacks;
  76 
  77     /**
  78      * Constructs a {@code FixedHeightLayoutCache}.
  79      */
  80     public FixedHeightLayoutCache() {
  81         super();
  82         tempStacks = new Stack<Stack<TreePath>>();
  83         boundsBuffer = new Rectangle();
  84         treePathMapping = new Hashtable<TreePath, FHTreeStateNode>();
  85         info = new SearchInfo();
  86         setRowHeight(1);
  87     }
  88 
  89     /**
  90      * Sets the TreeModel that will provide the data.
  91      *
  92      * @param newModel the TreeModel that is to provide the data
  93      */
  94     public void setModel(TreeModel newModel) {
  95         super.setModel(newModel);
  96         rebuild(false);
  97     }
  98 
  99     /**