1 ! Copyright (C) 2006 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: arrays kernel math namespaces sequences words io
4 io.streams.string math.vectors ui.gadgets ;
7 TUPLE: grid children gap fill? ;
9 : set-grid-children* ( children grid -- )
10 [ set-grid-children ] 2keep >r concat r> add-gadgets ;
12 : <grid> ( children -- grid )
14 [ set-grid-children* ] keep
15 { 0 0 } over set-grid-gap
16 t over set-grid-fill? ;
18 : grid-child ( grid i j -- gadget ) rot grid-children nth nth ;
20 : grid-add ( gadget grid i j -- )
21 >r >r 2dup add-gadget r> r>
22 3dup grid-child unparent rot grid-children nth set-nth ;
24 : grid-remove ( grid i j -- )
25 >r >r >r <gadget> r> r> r> grid-add ;
27 : pref-dim-grid ( grid -- dims )
28 grid-children [ [ pref-dim ] map ] map ;
30 : (compute-grid) [ max-dim ] map ;
32 : compute-grid ( grid -- horiz vert )
33 pref-dim-grid dup flip (compute-grid) swap (compute-grid) ;
35 : (pair-up) ( horiz vert -- dim )
36 >r first r> second 2array ;
38 : pair-up ( horiz vert -- dims )
39 [ [ (pair-up) ] curry map ] curry* map ;
41 : add-gaps ( gap seq -- newseq )
44 : gap-sum ( gap seq -- newseq )
45 dupd add-gaps dim-sum v+ ;
48 dup grid-gap swap compute-grid >r over r>
49 gap-sum >r gap-sum r> (pair-up) ;
51 : do-grid ( dims grid quot -- )
53 [ [ pick call ] 2each ] 2each
56 : grid-positions ( grid dims -- locs )
57 >r grid-gap dup r> add-gaps swap [ v+ ] accumulate nip ;
59 : position-grid ( grid horiz vert -- )
61 >r over r> grid-positions >r grid-positions r>
62 pair-up r> [ set-rect-loc ] do-grid ;
64 : resize-grid ( grid horiz vert -- )
66 pair-up swap [ set-layout-dim ] do-grid
68 2drop grid-children [ [ 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 )
77 dup gadget-children empty? [
80 { 0 1 } swap grid-children
81 [ 0 <column> fast-children-on ] keep
87 [ [ gadget-text ] map ] map format-table
88 [ CHAR: \n , ] [ % ] interleave ;