Re-organize things so that bootstrap.ui doesn't load ui.text

basis/bootstrap/ui/ui.factor

@@ -10,12 +10,4 @@ IN: bootstrap.ui
             { [ os unix? ] [ "x11" ] }
         } cond
     ] unless* "ui.backend." prepend require
-
-    "ui-text-backend" get [
-        {
-            { [ os macosx? ] [ "core-text" ] }
-            { [ os windows? ] [ "pango" ] }
-            { [ os unix? ] [ "pango" ] }
-        } cond
-    ] unless* "ui.text." prepend require
 ] when

basis/ui/gadgets/worlds/worlds.factor

@@ -3,8 +3,7 @@
 USING: accessors arrays assocs continuations kernel math models
 namespaces opengl sequences io combinators combinators.short-circuit
 fry math.vectors math.rectangles cache ui.gadgets ui.gestures
-ui.render ui.text ui.text.private ui.backend ui.gadgets.tracks
-ui.commands ;
+ui.render ui.backend ui.gadgets.tracks ui.commands ;
 IN: ui.gadgets.worlds
 
 TUPLE: world < track
@@ -53,7 +52,6 @@ M: world request-focus-on ( child gadget -- )
         swap >>status
         swap >>title
         swap 1 track-add
-    dup init-text-rendering
     dup request-focus ;
 
 : <world> ( gadget title status -- world )
@@ -74,15 +72,20 @@ M: world remove-gadget
     2dup layers>> memq?
     [ layers>> delq ] [ call-next-method ] if ;
 
+SYMBOL: flush-layout-cache-hook
+
+flush-layout-cache-hook [ [ ] ] initialize
+
 : (draw-world) ( world -- )
     dup handle>> [
         {
             [ init-gl ]
             [ draw-gadget ]
-            [ finish-text-rendering ]
+            [ text-handle>> [ purge-cache ] when* ]
             [ images>> [ purge-cache ] when* ]
         } cleave
-    ] with-gl-context ;
+    ] with-gl-context
+    flush-layout-cache-hook get call( -- ) ;
 
 : draw-world? ( world -- ? )
     #! We don't draw deactivated worlds, or those with 0 size.

basis/ui/text/core-text/core-text.factor

@@ -18,12 +18,11 @@ M: core-text-renderer string-dim
     [ cached-line dim>> ]
     if-empty ;
 
-M: core-text-renderer finish-text-rendering
-    text-handle>> purge-cache
+M: core-text-renderer flush-layout-cache
     cached-lines get purge-cache ;
 
 : rendered-line ( font string -- texture )
-    world get text-handle>>
+    world get world-text-handle
     [ cached-line [ image>> ] [ loc>> ] bi <texture> ]
     2cache ;
 

basis/ui/text/pango/pango.factor

@@ -14,12 +14,11 @@ M: pango-renderer string-dim
     [ " " string-dim { 0 1 } v* ]
     [ cached-layout logical-rect>> dim>> [ >integer ] map ] if-empty ;
 
-M: pango-renderer finish-text-rendering
-    text-handle>> purge-cache
+M: pango-renderer flush-layout-cache
     cached-layouts get purge-cache ;
 
 : rendered-layout ( font string -- texture )
-    world get text-handle>>
+    world get world-text-handle
     [ cached-layout [ image>> ] [ text-position vneg ] bi <texture> ]
     2cache ;
 

basis/ui/text/text.factor

@@ -1,7 +1,7 @@
 ! Copyright (C) 2009 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel arrays sequences math math.order opengl opengl.gl
-strings fonts colors accessors ;
+strings fonts colors accessors namespaces ui.gadgets.worlds ;
 IN: ui.text
 
 <PRIVATE
@@ -10,9 +10,13 @@ SYMBOL: font-renderer
 
 HOOK: init-text-rendering font-renderer ( world -- )
 
-HOOK: finish-text-rendering font-renderer ( world -- )
+: world-text-handle ( world -- handle )
+    dup text-handle>> [ dup init-text-rendering ] unless
+    text-handle>> ;
 
-M: object finish-text-rendering drop ;
+HOOK: flush-layout-cache font-renderer ( -- )
+
+[ flush-layout-cache ] flush-layout-cache-hook set-global
 
 HOOK: string-dim font-renderer ( font string -- dim )
 
@@ -68,4 +72,14 @@ M: array draw-text
             [ draw-string ]
             [ [ 0.0 ] 2dip string-height 0.0 glTranslated ] 2bi
         ] with each
-    ] do-matrix ;
+    ] do-matrix ;
+
+USING: vocabs.loader namespaces system combinators ;
+
+"ui-backend" get [
+    {
+        { [ os macosx? ] [ "core-text" ] }
+        { [ os windows? ] [ "pango" ] }
+        { [ os unix? ] [ "pango" ] }
+    } cond
+] unless* "ui.text." prepend require

basis/ui/ui.factor

@@ -4,8 +4,7 @@ USING: arrays assocs io kernel math models namespaces make dlists
 deques sequences threads sequences words continuations init
 combinators hashtables concurrency.flags sets accessors calendar fry
 destructors ui.gadgets ui.gadgets.private ui.gadgets.worlds
-ui.gadgets.tracks ui.gestures ui.backend ui.render ui.text
-ui.text.private ;
+ui.gadgets.tracks ui.gestures ui.backend ui.render ;
 IN: ui
 
 <PRIVATE
@@ -63,7 +62,7 @@ M: world graft*
 : (ungraft-world) ( world -- )
     {
         [ handle>> select-gl-context ]
-        [ text-handle>> dispose ]
+        [ text-handle>> [ dispose ] when* ]
         [ images>> [ dispose ] when* ]
         [ hand-clicked close-global ]
         [ hand-gadget close-global ]
@@ -95,8 +94,7 @@ M: world ungraft*
 : restore-world ( world -- )
     {
         [ reset-world ]
-        [ init-text-rendering ]
-        [ f >>images drop ]
+        [ f >>text-handle f >>images drop ]
         [ restore-gadget ]
     } cleave ;