1 ! Copyright (C) 2006, 2010 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: arrays kernel math math.order math.matrices namespaces
4 make sequences words io math.vectors ui.gadgets
5 ui.baseline-alignment columns accessors strings.tables
11 { gap initial: { 0 0 } }
12 { fill? initial: t } ;
14 : new-grid ( children class -- grid )
16 swap [ >>grid ] [ concat add-gadgets ] bi ; inline
18 : <grid> ( children -- grid )
23 : grid@ ( grid pair -- col# row )
24 swap [ first2 ] [ grid>> ] bi* nth ;
28 : grid-child ( grid pair -- gadget ) grid@ nth ;
30 : grid-add ( grid child pair -- grid )
31 [ nip grid-child unparent ]
33 [ swapd grid@ set-nth ] 3tri ;
35 : grid-remove ( grid pair -- grid ) [ <gadget> ] dip grid-add ;
39 TUPLE: cell pref-dim baseline cap-height ;
41 : <cell> ( gadget -- cell )
42 [ pref-dim ] [ baseline ] [ cap-height ] tri cell boa ;
44 M: cell baseline baseline>> ;
46 M: cell cap-height cap-height>> ;
48 TUPLE: grid-layout grid gap fill? row-heights column-widths ;
50 : iterate-cell-dims ( cells quot -- seq )
51 '[ [ pref-dim>> @ ] [ max ] map-reduce ] map ; inline
53 : row-heights ( grid-layout -- heights )
54 [ grid>> ] [ fill?>> ] bi
55 [ [ second ] iterate-cell-dims ]
56 [ [ dup [ pref-dim>> ] map measure-height ] map ]
59 : column-widths ( grid-layout -- widths )
60 grid>> flip [ first ] iterate-cell-dims ;
62 : <grid-layout> ( grid -- grid-layout )
65 [ grid>> [ [ <cell> ] map ] map >>grid ]
69 dup row-heights >>row-heights
70 dup column-widths >>column-widths ;
72 : accumulate-cell-dims ( seq gap -- n ns )
73 dup '[ + _ + ] accumulate ;
75 : accumulate-cell-xs ( grid-layout -- x xs )
76 [ column-widths>> ] [ gap>> first ] bi
77 accumulate-cell-dims ;
79 : accumulate-cell-ys ( grid-layout -- y ys )
80 [ row-heights>> ] [ gap>> second ] bi
81 accumulate-cell-dims ;
83 : grid-pref-dim ( grid-layout -- dim )
84 [ accumulate-cell-xs drop ]
85 [ accumulate-cell-ys drop ]
88 M: grid pref-dim* <grid-layout> grid-pref-dim ;
90 : (compute-cell-locs) ( grid-layout -- locs )
91 [ accumulate-cell-xs nip ]
92 [ accumulate-cell-ys nip ]
95 : adjust-for-baseline ( row-locs row-cells -- row-locs' )
96 align-baselines [ 0 swap 2array v+ ] 2map ;
98 : cell-locs ( grid-layout -- locs )
100 [ (compute-cell-locs) ] [
101 [ (compute-cell-locs) ] [ grid>> ] bi
102 [ adjust-for-baseline ] 2map
105 : cell-dims ( grid-layout -- dims )
107 [ [ column-widths>> ] [ row-heights>> ] bi cross-zip flip ]
108 [ grid>> [ [ pref-dim>> ] map ] map ]
111 : grid-layout ( children grid-layout -- )
112 [ cell-locs ] [ cell-dims ] bi
113 [ [ <rect> swap set-rect-bounds ] 3each ] 3each ;
115 M: grid layout* [ grid>> ] [ <grid-layout> ] bi grid-layout ;
117 M: grid children-on ( rect gadget -- seq )
118 dup children>> empty? [ 2drop f ] [
120 [ grid>> ] [ dim>> ] bi
121 '[ _ [ loc>> vmin ] reduce ] fast-children-on
127 [ [ gadget-text ] map ] map format-table
128 [ CHAR: \n , ] [ % ] interleave ;