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[factor.git] / basis / colors / gray / gray.factor
1 ! Copyright (C) 2008 Eduardo Cavazos.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: colors kernel accessors ;
4 IN: colors.gray
5
6 TUPLE: gray < color gray alpha ;
7
8 C: <gray> gray
9
10 M: gray >rgba ( gray -- rgba )
11     [ gray>> dup dup ] [ alpha>> ] bi <rgba> ;