Index: openide/src/org/openide/explorer/view/TreeTable.java
===================================================================
RCS file: /cvs/openide/src/org/openide/explorer/view/TreeTable.java,v
retrieving revision 1.25
diff -u -r1.25 TreeTable.java
--- openide/src/org/openide/explorer/view/TreeTable.java	15 Apr 2003 14:03:51 -0000	1.25
+++ openide/src/org/openide/explorer/view/TreeTable.java	25 Apr 2003 12:48:03 -0000
@@ -129,6 +129,7 @@
             UIManager.put ("Table.gridColor", new JTable ().getGridColor ()); // NOI18N
         }
         setUI(new TreeTableUI());
+        needCalcRowHeight = true;
     }
 
     /* Workaround for BasicTableUI anomaly. Make sure the UI never tries to 
@@ -141,6 +142,26 @@
         return (getColumnClass(editingColumn) == TreeTableModelAdapter.class) ? -1 :
 	        editingRow;  
     }
+    
+    boolean needCalcRowHeight = true;
+    public void paint (Graphics g) {
+        if (needCalcRowHeight) {
+            calcRowHeight(g);
+        }
+        super.paint(g);
+    }
+    
+    /** Calculate the height of rows based on the current font.  This is
+     *  done when the first paint occurs, to ensure that a valid Graphics 
+     *  object is available.  
+     *  @since 1.25   */
+    private void calcRowHeight(Graphics g) {
+        Font f = getFont();
+        FontMetrics fm = g.getFontMetrics(f);
+        int rowHeight = fm.getHeight();
+        needCalcRowHeight = false;
+        setRowHeight (rowHeight);
+    }    
 
     /*
      * Overridden to pass the new rowHeight to the tree.