Added minimal width specification to label text tokens.

Lua API.rst

@@ -2737,6 +2737,10 @@ containing newlines, or a table with the following possible fields:
 
   Specifies a unique identifier for the token.
   
+* ``token.minw``
+
+  Specifies minimal token width
+  
 * ``token.line``, ``token.x1``, ``token.x2``
 
   Reserved for internal use.

library/lua/gui/widgets.lua

@@ -282,7 +282,10 @@ function render_text(obj,dc,x0,y0,pen,dpen,disabled)
                     end
                 end
             end
-
+            if token.minw and x<token.minw then
+                dc:advance(token.minw-x)
+                x = math.max(x,token.minw or 0)
+            end
             token.x2 = x
         end
         width = math.max(width, x)