93 lines
2.3 KiB
Factor
93 lines
2.3 KiB
Factor
! Copyright (C) 2006, 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: arrays kernel math namespaces make sequences words io
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io.streams.string math.vectors ui.gadgets columns accessors
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math.geometry.rect ;
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IN: ui.gadgets.grids
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TUPLE: grid < gadget
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grid
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{ gap initial: { 0 0 } }
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{ fill? initial: t } ;
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: new-grid ( children class -- grid )
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new-gadget
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[ (>>grid) ] [ >r concat r> swap add-gadgets drop ] [ nip ] 2tri ;
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inline
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: <grid> ( children -- grid )
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grid new-grid ;
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: grid-child ( grid i j -- gadget ) rot grid>> nth nth ;
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: grid-add ( grid child i j -- grid )
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>r >r dupd swap r> r>
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>r >r 2dup swap add-gadget drop r> r>
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3dup grid-child unparent rot grid>> nth set-nth ;
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: grid-remove ( grid i j -- grid ) <gadget> -rot grid-add ;
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: pref-dim-grid ( grid -- dims )
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grid>> [ [ pref-dim ] map ] map ;
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: (compute-grid) ( grid -- seq ) [ max-dim ] map ;
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: compute-grid ( grid -- horiz vert )
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pref-dim-grid dup flip (compute-grid) swap (compute-grid) ;
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: (pair-up) ( horiz vert -- dim )
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>r first r> second 2array ;
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: pair-up ( horiz vert -- dims )
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[ [ (pair-up) ] curry map ] with map ;
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: add-gaps ( gap seq -- newseq )
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[ v+ ] with map ;
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: gap-sum ( gap seq -- newseq )
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dupd add-gaps dim-sum v+ ;
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M: grid pref-dim*
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dup gap>> swap compute-grid >r over r>
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gap-sum >r gap-sum r> (pair-up) ;
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: do-grid ( dims grid quot -- )
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-rot grid>>
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[ [ pick call ] 2each ] 2each
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drop ; inline
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: grid-positions ( grid dims -- locs )
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>r gap>> dup r> add-gaps swap [ v+ ] accumulate nip ;
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: position-grid ( grid horiz vert -- )
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pick >r
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>r over r> grid-positions >r grid-positions r>
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pair-up r> [ (>>loc) ] do-grid ;
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: resize-grid ( grid horiz vert -- )
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pick fill?>> [
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pair-up swap [ (>>dim) ] do-grid
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] [
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2drop grid>> [ [ prefer ] each ] each
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] if ;
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: grid-layout ( grid horiz vert -- )
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[ position-grid ] 3keep resize-grid ;
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M: grid layout* dup compute-grid grid-layout ;
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M: grid children-on ( rect gadget -- seq )
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dup children>> empty?
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[ 2drop f ]
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[
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{ 0 1 } swap grid>>
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[ 0 <column> fast-children-on ] keep
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<slice> concat
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]
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if ;
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M: grid gadget-text*
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grid>>
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[ [ gadget-text ] map ] map format-table
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[ CHAR: \n , ] [ % ] interleave ;
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