28 lines
805 B
Factor
28 lines
805 B
Factor
! Copyright (C) 2005 Slava Pestov.
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! See http://factor.sf.net/license.txt for BSD license.
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IN: gadgets-labels
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USING: arrays gadgets gadgets-layouts generic hashtables io
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kernel math namespaces sequences styles ;
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! A label gadget draws a string.
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TUPLE: label text ;
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C: label ( text -- label )
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dup delegate>gadget [ set-label-text ] keep ;
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: label-size ( gadget text -- dim )
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>r gadget-font r> size-string 0 3array ;
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: set-label-text* ( text label -- )
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2dup label-text =
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[ 2dup [ set-label-text ] keep relayout ] unless 2drop ;
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M: label pref-dim ( label -- dim )
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dup label-text label-size ;
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M: label draw-gadget* ( label -- )
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drop ; ! dup delegate draw-gadget* dup label-text draw-string ;
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M: label set-message ( string/f label -- )
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>r [ "" ] unless* r> set-label-text* ;
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