1 ! Copyright (C) 2005, 2009 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays hashtables io kernel math math.functions
4 namespaces make opengl sequences strings splitting ui.gadgets
5 ui.gadgets.tracks ui.gadgets.packs fonts ui.render ui.pens.solid
6 ui.baseline-alignment ui.text colors colors.constants models
7 combinators opengl.gl ;
10 ! A label gadget draws a string.
11 TUPLE: label < gadget text font ;
15 M: label string>> ( label -- string )
16 text>> dup string? [ "\n" join ] unless ; inline
20 PREDICATE: string-array < array [ string? ] all? ;
24 : ?string-lines ( string -- string/array )
25 CHAR: \n over member-eq? [ string-lines ] when ;
27 ERROR: not-a-string object ;
29 M: label string<< ( string label -- )
32 { [ dup string-array? ] [ ] }
33 { [ dup string? ] [ ?string-lines ] }
38 : label-theme ( gadget -- gadget )
39 sans-serif-font >>font ; inline
41 : new-label ( string class -- label )
46 : <label> ( string -- label )
49 : >label< ( label -- font text )
50 [ font>> ] [ text>> ] bi ;
57 : label-metrics ( label -- metrics )
58 >label< dup string? [ first ] unless line-metrics ;
63 label-metrics ascent>> round ;
66 label-metrics cap-height>> round ;
71 background get [ font-with-background ] when*
72 foreground get [ font-with-foreground ] when*
76 M: label gadget-text* string>> % ;
78 TUPLE: label-control < label ;
80 M: label-control model-changed
81 swap value>> >>string relayout ;
83 : <label-control> ( model -- gadget )
84 "" label-control new-label
87 : text-theme ( gadget -- gadget )
88 monospace-font >>font ;
90 : reverse-video-theme ( label -- label )
91 sans-serif-font reverse-video-font >>font
92 COLOR: black <solid> >>interior ;
94 GENERIC: >label ( obj -- gadget )
95 M: string >label <label> ;
96 M: array >label <label> ;
98 M: f >label drop <gadget> ;
102 : label-on-left/right ( -- track )
106 { 5 5 } >>gap ; inline
109 : label-on-left ( gadget label -- track )
111 swap >label f track-add
114 : label-on-right ( label gadget -- track )
117 swap >label 1 track-add ;