49 lines
1.3 KiB
Factor
49 lines
1.3 KiB
Factor
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! Copyright (C) 2005, 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors arrays ui.gadgets kernel math
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namespaces vectors sequences math.vectors math.geometry.rect ;
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IN: ui.gadgets.borders
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TUPLE: border < gadget
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{ size initial: { 0 0 } }
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{ fill initial: { 0 0 } }
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{ align initial: { 1/2 1/2 } } ;
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: new-border ( child class -- border )
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new-gadget [ swap add-gadget drop ] keep ; inline
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: <border> ( child gap -- border )
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swap border new-border
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swap dup 2array >>size ;
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M: border pref-dim*
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[ size>> 2 v*n ] keep
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gadget-child pref-dim v+ ;
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: border-major-dim ( border -- dim )
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[ dim>> ] [ size>> 2 v*n ] bi v- ;
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: border-minor-dim ( border -- dim )
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gadget-child pref-dim ;
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: scale ( a b s -- c )
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tuck { 1 1 } swap v- [ v* ] 2bi@ v+ ;
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: border-dim ( border -- dim )
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[ border-major-dim ] [ border-minor-dim ] [ fill>> ] tri scale ;
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: border-loc ( border dim -- loc )
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[ [ size>> ] [ align>> ] [ border-major-dim ] tri ] dip
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v- v* v+ [ >fixnum ] map ;
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: border-child-rect ( border -- rect )
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dup border-dim [ border-loc ] keep <rect> ;
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M: border layout*
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dup border-child-rect swap gadget-child
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over loc>> over set-rect-loc
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swap dim>> swap (>>dim) ;
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M: border focusable-child*
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gadget-child ;
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