+ /**
+ * Convenience method when no style is explicitly set, so that the control can
+ * effectively be created. Does nothing if a control already exists, otherwise
+ * it is equivalent to {@link #setStyle(String)} with a <code>null<code>
+ * argument.
+ */
+ public void initControl() {
+ if (control != null)
+ return;
+ setStyle((String) null);
+ }
+