VN System improved.

src/dawn/display/font/Font.hpp

@@ -37,6 +37,17 @@ namespace Dawn {
         struct FontMeasure *info
       ) = 0;
 
+      /**
+       * Fonts need to be initialized before they can actually be used, but I
+       * really want to keep things kind-of non-blocking, so for the time being
+       * this hack works around it, fonts can decide to return false if they are
+       * not "ready for buffering", and the item intending to use the font is
+       * required to decide when it should actually request buffering.
+       * 
+       * @return True if ready for buffering, otherwise false.
+       */
+      virtual bool_t isReady() = 0;
+
       /**
        * Returns the texture that is used for a given font.
        *