factor/basis/ui/gadgets/labels/labels.factor

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Factor
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! Copyright (C) 2005, 2008 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors arrays hashtables io kernel math namespaces
opengl sequences strings splitting
ui.gadgets ui.gadgets.tracks ui.gadgets.theme ui.render colors
models ;
IN: ui.gadgets.labels
! A label gadget draws a string.
TUPLE: label < gadget text font color ;
: label-string ( label -- string )
text>> dup string? [ "\n" join ] unless ; inline
: set-label-string ( string label -- )
CHAR: \n pick memq? [
>r string-lines r> set-label-text
] [
set-label-text
] if ; inline
: label-theme ( gadget -- gadget )
sans-serif-font >>font
black >>color ; inline
: new-label ( string class -- label )
new-gadget
[ set-label-string ] keep
label-theme ; inline
: <label> ( string -- label )
label new-label ;
M: label pref-dim*
[ font>> open-font ] [ text>> ] bi text-dim ;
M: label draw-gadget*
[ color>> set-color ]
[ [ font>> ] [ text>> ] bi origin get draw-text ] bi ;
M: label gadget-text* label-string % ;
TUPLE: label-control < label ;
M: label-control model-changed
swap model-value over set-label-string relayout ;
: <label-control> ( model -- gadget )
"" label-control new-label
swap >>model ;
: text-theme ( gadget -- gadget )
black >>color
monospace-font >>font ;
: reverse-video-theme ( label -- label )
white >>color
black solid-interior ;
GENERIC: >label ( obj -- gadget )
M: string >label <label> ;
M: array >label <label> ;
M: object >label ;
M: f >label drop <gadget> ;
: label-on-left ( gadget label -- button )
{ 1 0 } <track>
swap >label f track-add
swap 1 track-add ;
: label-on-right ( label gadget -- button )
{ 1 0 } <track>
swap f track-add
swap >label 1 track-add ;