17 lines
421 B
Factor
17 lines
421 B
Factor
! Copyright (C) 2009 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors kernel ;
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IN: ui.pens.caching
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! A pen that caches vertex arrays, etc
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TUPLE: caching-pen last-dim ;
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GENERIC: recompute-pen ( gadget pen -- )
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: compute-pen ( gadget pen -- )
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2dup [ dim>> ] [ last-dim>> ] bi* eq? [
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2drop
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] [
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[ swap dim>> >>last-dim drop ] [ recompute-pen ] 2bi
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] if ;
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