avr: added Widget_OnDrawNop

avr/modules/lcd2/gui2/widget.asm

@@ -220,6 +220,27 @@ Widget_OnDraw_ret:
 
 
 
+; ---------------------------------------------------------------------------
+; @routine Widget_OnDrawNop @global
+;
+; this routine only clears the DIRTY bit
+; 
+; @param Z byte address of widget object (for LPM!)
+; @param xl param1
+; @param xh param2
+; @return CFLAG set if signal handled
+; @clobbers any, !Z
+
+Widget_OnDrawNop:
+  rcall Widget_GetSdramPtr
+  ldd r17, Y+WIDGET_SD_OFFS_FLAGS
+  cbr r17, (1<<WIDGET_FLAGS_DIRTY_BIT)
+  std Y+WIDGET_SD_OFFS_FLAGS, r17
+  ret
+; @end
+
+
+
 ; ---------------------------------------------------------------------------
 ; @routine Widget_IsPointInRect @global
 ;