unmaintained: New home for misfit Factor vocabularies.

[factor-unmaintained.git] / ui / gadgets / layout / layout.factor

diff --git a/ui/gadgets/layout/layout.factor b/ui/gadgets/layout/layout.factor
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+USING: accessors assocs arrays fry kernel lexer make math.parser
+models monads namespaces parser sequences
+sequences.extras models.combinators ui.gadgets
+ui.gadgets.tracks words ui.gadgets.controls ;
+QUALIFIED: make
+QUALIFIED-WITH: ui.gadgets.books book
+IN: ui.gadgets.layout
+
+SYMBOL: templates
+TUPLE: layout gadget size ; C: <layout> layout
+TUPLE: placeholder < gadget members ;
+: <placeholder> ( -- placeholder ) placeholder new V{ } clone >>members ;
+
+: (remove-members) ( placeholder members -- ) [ [ model? ] filter swap parent>> model>> [ remove-connection ] curry each ]
+    [ nip [ gadget? ] filter [ unparent ] each ] 2bi ;
+
+: remove-members ( placeholder -- ) dup members>> [ drop ] [ [ (remove-members) ] keep delete-all ] if-empty ;
+: add-member ( obj placeholder -- ) over layout? [ [ gadget>> ] dip ] when members>> push ;
+
+: , ( item -- ) make:, ;
+: make* ( quot -- list ) { } make ; inline
+
+! Just take the previous mentioned placeholder and use it
+! If there is no previously mentioned placeholder, we're probably making a box, and will create the placeholder ourselves
+DEFER: with-interface
+: insertion-quot ( quot -- quot' )
+    make:building get [ [ placeholder? ] find-last nip [ <placeholder> dup , ] unless*
+    [ templates get ] 2dip swap '[ [ _ templates set _ , @ ] with-interface ] ] when* ;
+
+SYNTAX: ,% scan string>number [ <layout> , ] curry append! ;
+SYNTAX: ->% scan string>number '[ [ _ <layout> , ] [ output-model ] bi ] append! ;
+
+GENERIC: -> ( uiitem -- model )
+M: gadget -> dup , output-model ;
+M: model -> dup , ;
+
+: <spacer> ( -- ) <gadget> 1 <layout> , ;
+
+: add-layout ( track layout -- track ) [ gadget>> ] [ size>> ] bi track-add ;
+: layouts ( sized? gadgets -- layouts ) [ [ gadget? ] [ layout? ] bi or ] filter swap
+   [ [ dup layout? [ f <layout> ] unless ] map ]
+   [ [ dup gadget? [ gadget>> ] unless ] map ] if ;
+: make-layout ( building sized? -- models layouts ) [ swap layouts ] curry
+   [ make* [ [ model? ] filter ] ] dip bi ; inline
+: <box> ( gadgets type -- track )
+   [ t make-layout ] dip <track>
+   swap [ add-layout ] each
+   swap [ <collection> >>model ] unless-empty ; inline
+: <hbox> ( gadgets -- track ) horizontal <box> ; inline
+: <vbox> ( gadgets -- track ) vertical <box> ; inline
+
+: make-book ( models gadgets model -- book ) book:<book> swap [ "No models in books" throw ] unless-empty ;
+: <book> ( quot: ( -- model ) -- book ) f make-layout rot 0 >>value make-book ; inline
+: <book*> ( quot -- book ) f make-layout f make-book ; inline
+
+ERROR: not-in-template word ;
+SYNTAX: $ scan-new-word dup
+    [ [ dup templates get at [ nip , ] [ not-in-template ] if* ] curry ( -- ) define-declared "$" expect ]
+    [ [ <placeholder> [ swap templates get set-at ] keep , ] curry ] bi append! ;
+
+: insert-gadget ( number parent gadget -- ) -rot [ but-last insert-nth ] change-children drop ;
+: insert-size ( number parent size -- ) -rot [ but-last insert-nth ] change-sizes drop ;
+: insertion-point ( placeholder -- number parent ) dup parent>> [ children>> index ] keep ;
+
+GENERIC: >layout ( gadget -- layout )
+M: gadget >layout f <layout> ;
+M: layout >layout ;
+
+GENERIC#: (add-gadget-at) 2 ( parent item n -- )
+M: gadget (add-gadget-at) -rot [ add-gadget ] keep insert-gadget ;
+M: track (add-gadget-at) -rot >layout [ add-layout ] keep [ gadget>> insert-gadget ] [ size>> insert-size ] 3bi ;
+
+GENERIC#: add-gadget-at 1 ( item location -- )
+M: object add-gadget-at insertion-point -rot (add-gadget-at) ;
+M: model add-gadget-at parent>> dup book:book? [ "No models in books" throw ]
+   [ dup model>> dup collection? [ nip swap add-connection ] [ drop [ 1array <collection> ] dip model<< ] if ] if ;
+: track-add-at ( item location size -- ) swap [ <layout> ] dip add-gadget-at ;
+: (track-add-at) ( parent item n size -- ) swap [ <layout> ] dip (add-gadget-at) ;
+
+: insert-item ( item location -- ) [ dup get [ drop ] [ remove-members ] if ] [ on ] [ ] tri
+    [ add-member ] 2keep add-gadget-at ;
+
+: insert-items ( makelist -- ) t swap [ dup placeholder? [ nip ] [ over insert-item ] if ] each drop ;
+
+: with-interface ( quot -- ) [ make* ] curry H{ } clone templates rot with-variable [ insert-items ] with-scope ; inline
+
+M: model >>= [ swap insertion-quot <action> ] curry ;
+M: model fmap insertion-quot <mapped> ;
+M: model $> insertion-quot side-effect-model new-mapped-model ;
+M: model <$ insertion-quot quot-model new-mapped-model ;