1 ! Copyright (C) 2006, 2009 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: arrays kernel math namespaces make sequences words io
4 io.styles math.vectors ui.gadgets columns accessors
5 math.geometry.rect locals fry ;
10 { gap initial: { 0 0 } }
11 { fill? initial: t } ;
13 : new-grid ( children class -- grid )
16 dup grid>> concat add-gadgets ; inline
18 : <grid> ( children -- grid )
21 :: grid-child ( grid i j -- gadget ) i j grid grid>> nth nth ;
23 :: grid-add ( grid child i j -- grid )
24 grid i j grid-child unparent
26 child i j grid grid>> nth set-nth ;
28 : grid-remove ( grid i j -- grid ) [ <gadget> ] 2dip grid-add ;
30 : pref-dim-grid ( grid -- dims )
31 grid>> [ [ pref-dim ] map ] map ;
33 : (compute-grid) ( grid -- seq ) [ max-dim ] map ;
35 : compute-grid ( grid -- horiz vert )
36 pref-dim-grid [ flip (compute-grid) ] [ (compute-grid) ] bi ;
38 : (pair-up) ( horiz vert -- dim )
39 [ first ] [ second ] bi* 2array ;
41 : pair-up ( horiz vert -- dims )
42 [ [ (pair-up) ] curry map ] with map ;
44 : add-gaps ( gap seq -- newseq )
47 : gap-sum ( gap seq -- newseq )
48 dupd add-gaps dim-sum v+ ;
51 dup gap>> swap compute-grid [ over ] dip
52 [ gap-sum ] 2bi@ (pair-up) ;
54 : do-grid ( dims grid quot -- )
55 [ grid>> ] dip '[ _ 2each ] 2each ; inline
57 : grid-positions ( grid dims -- locs )
58 [ gap>> dup ] dip add-gaps swap [ v+ ] accumulate nip ;
60 : position-grid ( grid horiz vert -- )
61 pick [ [ over ] dip [ grid-positions ] 2bi@ pair-up ] dip
64 : resize-grid ( grid horiz vert -- )
66 pair-up swap [ (>>dim) ] do-grid
68 2drop grid>> [ [ prefer ] each ] each
71 : grid-layout ( grid horiz vert -- )
72 [ position-grid ] 3keep resize-grid ;
74 M: grid layout* dup compute-grid grid-layout ;
76 M: grid children-on ( rect gadget -- seq )
81 [ 0 <column> fast-children-on ] keep
88 [ [ gadget-text ] map ] map format-table
89 [ CHAR: \n , ] [ % ] interleave ;