factor/library/ui/borders.factor

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! Copyright (C) 2005 Slava Pestov.
! See http://factor.sf.net/license.txt for BSD license.
IN: gadgets-borders
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USING: arrays errors gadgets gadgets-layouts gadgets-theme
generic hashtables kernel math namespaces vectors ;
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TUPLE: border size ;
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C: border ( child gap -- border )
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dup delegate>gadget
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[ >r dup 0 3array r> set-border-size ] keep
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[ add-gadget ] keep ;
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: <default-border> ( child -- border )
5 <border> ;
: layout-border-loc ( border -- )
dup border-size swap gadget-child set-rect-loc ;
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: layout-border-dim ( border -- )
dup rect-dim over border-size 2 v*n v-
swap gadget-child set-gadget-dim ;
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M: border pref-dim* ( border -- dim )
[ border-size 2 v*n ] keep
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gadget-child pref-dim v+ ;
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M: border layout* ( border -- )
dup layout-border-loc layout-border-dim ;