     /**
      *  @private
      */
-    private function isFontEmbedded(format:TextFormat):Boolean
+    private static function isFontEmbedded(format:TextFormat):Boolean
     {
         if (!embeddedFonts)
             embeddedFonts = Font.enumerateFonts();

        replaceText(selectionAnchorPosition, selectionActivePosition, text);
        dispatchEvent(new FlexEvent(FlexEvent.VALUE_COMMIT));
        invalidateTextSizeFlag = true;
		invalidateBaselineBottomOffset = true;
    }
    
    /**

	/**
	 *  @private
	 */
	private var invalidateTightTextHeight:Boolean = true;
	
	/**
	 *  @private
	 */
	private var _tightTextHeight:Number;
    
    /**
     *  @private
