117 lines
2.9 KiB
Factor
117 lines
2.9 KiB
Factor
! Copyright (C) 2005, 2006 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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IN: gadgets
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USING: generic hashtables inference kernel math namespaces
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sequences vectors words parser ;
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GENERIC: graft* ( gadget -- )
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M: gadget graft* drop ;
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: graft ( gadget -- )
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t over set-gadget-grafted?
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dup graft*
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[ graft ] each-child ;
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GENERIC: ungraft* ( gadget -- )
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M: gadget ungraft* drop ;
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: ungraft ( gadget -- )
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dup gadget-grafted? [
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dup [ ungraft ] each-child
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dup ungraft*
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f over set-gadget-grafted?
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] when drop ;
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: (unparent) ( gadget -- )
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dup ungraft
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dup forget-pref-dim f swap set-gadget-parent ;
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: unparent ( gadget -- )
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[
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dup gadget-parent dup [
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over (unparent)
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[ gadget-children delete ] keep relayout
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] [
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2drop
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] if
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] when* ;
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: (clear-gadget) ( gadget -- )
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dup [ (unparent) ] each-child f swap set-gadget-children ;
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: clear-gadget ( gadget -- )
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dup (clear-gadget) relayout ;
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: ((add-gadget)) ( gadget box -- )
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[ gadget-children ?push ] keep set-gadget-children ;
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: (add-gadget) ( gadget box -- )
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over unparent
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dup pick set-gadget-parent
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[ ((add-gadget)) ] 2keep
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gadget-grafted? [ graft ] [ drop ] if ;
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: add-gadget ( gadget parent -- )
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#! Add a gadget to a parent gadget.
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[ (add-gadget) ] keep relayout ;
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: add-gadgets ( seq parent -- )
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#! Add all gadgets in a sequence to a parent gadget.
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swap [ over (add-gadget) ] each relayout ;
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: add-spec ( quot spec -- )
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dup first %
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dup second [ [ dup gadget get ] % , ] when*
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dup third %
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[ gadget get ] %
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fourth ,
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% ;
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: (build-spec) ( quot spec -- quot )
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[ [ add-spec ] each-with ] [ ] make ;
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: build-spec ( spec quot -- )
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swap (build-spec) call ;
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\ build-spec 2 0 <effect> "infer-effect" set-word-prop
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\ build-spec [
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pop-literal pop-literal nip (build-spec) infer-quot-value
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] "infer" set-word-prop
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: (parents) ( gadget -- )
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[ dup , gadget-parent (parents) ] when* ;
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: parents ( gadget -- vector )
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#! A list of all parents of the gadget, the first element
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#! is the gadget itself.
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[ (parents) ] { } make ;
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: each-parent ( gadget quot -- ? )
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>r parents r> all? ; inline
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: find-parent ( gadget quot -- gadget )
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>r parents r> find nip ; inline
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: screen-loc ( gadget -- point )
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#! The position of the gadget on the screen.
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parents { 0 0 } [ rect-loc v+ ] reduce ;
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: relative-loc ( g1 point -- point-g1 ) swap screen-loc v- ;
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: child? ( parent child -- ? ) parents memq? ;
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GENERIC: focusable-child* ( gadget -- gadget/t )
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M: gadget focusable-child* drop t ;
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: focusable-child ( gadget -- gadget )
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dup focusable-child*
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dup t eq? [ drop ] [ nip focusable-child ] if ;
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: make-pile ( children -- pack ) <pile> [ add-gadgets ] keep ;
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: make-shelf ( children -- pack ) <shelf> [ add-gadgets ] keep ;
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