splitter layout fix

library/collections/hashtables.factor

@@ -165,3 +165,9 @@ M: hashtable hashcode ( hash -- n )
     ] [
         pick rot >r >r call dup r> r> set-hash
     ] ifte* ; inline
+
+: ?hash ( key hash/f -- value/f )
+    dup [ hash ] [ 2drop f ] ifte ;
+
+: ?set-hash ( value key hash/f -- hash )
+    [ 1 <hashtable> ] unless* [ set-hash ] keep ;

library/ui/init-world.factor

@@ -3,6 +3,11 @@
 IN: gadgets
 USING: generic io kernel listener math namespaces styles threads ;
 
+SYMBOL: stack-display
+
+: <stack-display>
+     ;
+
 : init-world
     global [
         <world> world set
@@ -21,15 +26,13 @@ USING: generic io kernel listener math namespaces styles threads ;
         
         <plain-gadget> add-layer
     
-        <pane> dup
+        <pane> dup pane set <scroller>
+        <pane> dup stack-display set <scroller>
+        3/4 <y-splitter> add-layer
         
-        <scroller> "Stack display goes here" <label> 3/4 <y-splitter> add-layer
+        [ pane get [ clear print-banner listener ] with-stream ] in-thread
         
-        [ [ clear  print-banner listener ] with-stream ] in-thread
-        
-        dup request-focus
-        
-        pane set
+        pane get request-focus
     ] bind ;
 
 SYMBOL: first-time

library/ui/splitters.factor

@@ -45,13 +45,14 @@ C: splitter ( first second split vector -- splitter )
     { 1 0 0 } <splitter> ;
 
 : splitter-part ( splitter -- vec )
-    dup splitter-split swap shape-dim n*v divider-size 1/2 v*n v- ;
+    dup splitter-split swap shape-dim
+    n*v divider-size 1/2 v*n v- ;
 
 : splitter-layout ( splitter -- [ a b c ] )
     [
         dup splitter-part ,
         divider-size ,
-        dup shape-dim swap splitter-part v- ,
+        dup shape-dim divider-size v- swap splitter-part v- ,
     ] make-list ;
 
 M: splitter layout* ( splitter -- )