--- a/mde/gui/renderer/IRenderer.d	Wed Dec 03 19:37:32 2008 +0000
+++ b/mde/gui/renderer/IRenderer.d	Thu Dec 04 10:32:20 2008 +0000
@@ -142,6 +142,14 @@
     /** Draw a window border plus background. */
     void drawWindow (Border* border, wdim x, wdim y, wdim w, wdim h);
     
+    /** Draw vertical and horizontal spacers.
+     *
+     * x,y and w,h are the position and size of the grid containing spacers.
+     * 
+     * For each col in cols, spacers should be drawn in the rectangle
+     * [x+col-layoutSpacing,x+col)*[y,y+h), and similarly for rows. */
+    void drawSpacers (wdabs x, wdabs y, wdsize w, wdsize h, wdims cols, wdims rows);
+    
     /** Draws a widget background. Usually doesn't do anything since backgrounds are transparent.
      *
      * It used to be required for all widgets to do this, but I lapsed since mostly it's unused. */