--- /dev/null
+USING: arrays cocoa.dialogs combinators continuations
+fry grouping io.encodings.utf8 io.files io.styles kernel math
+math.parser models models.arrow models.history namespaces random
+sequences splitting ui ui.gadgets.alerts ui.gadgets.book-extras
+ui.gadgets.books ui.gadgets.buttons ui.gadgets.frames
+ui.gadgets.grids ui.gadgets.labels ui.gadgets.tracks fonts
+wrap.strings system ;
+EXCLUDE: accessors => change-model ;
+IN: drills.deployed
+SYMBOLS: it startLength ;
+: big ( gadget -- gadget ) T{ font { name "sans-serif" } { size 30 } } >>font ;
+: card ( model quot -- button ) <arrow> <label-control> big [ next ] <book-btn> ;
+: op ( quot str -- gadget ) <label> big swap <book-bevel-btn> ;
+
+: show ( model -- gadget ) dup it set-global [ random ] <arrow>
+ { [ [ first ] card ]
+ [ [ second ] card ]
+ [ '[ |<< it get _ model-changed ] "No" op ]
+ [ '[ |<< [ it get [
+ _ value>> swap remove
+ [ [ it get go-back ] "Drill Complete" alert return ] when-empty
+ ] change-model ] with-return ] "Yes" op ]
+ } cleave
+2array { 1 0 } <track> swap [ 0.5 track-add ] each
+3array <book*> 3 3 <frame> { 1 1 } >>filled-cell { 450 175 } >>pref-dim swap { 1 1 } grid-add
+it get [ length startLength get swap - number>string "/" startLength get number>string 3append ] <arrow> <label-control> { 1 2 } grid-add ;
+
+: drill ( -- ) [
+ open-panel [
+ [ utf8 file-lines [ "\t" split [ 25 wrap-string ] map ] map dup [ first2 swap 2array ] map append ] map concat
+ [ length startLength set-global ] keep <history> [ add-history ] [ show ] bi
+ "Got it?" open-window
+ ] [ 0 exit ] if*
+] with-ui ;
+
+MAIN: drill