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 ; inline
56 font>> font-metrics ascent>> round ;
59 font>> font-metrics cap-height>> round ;
64 background get [ font-with-background ] when*
65 foreground get [ font-with-foreground ] when*
69 M: label gadget-text* string>> % ;
71 TUPLE: label-control < label ;
73 M: label-control model-changed
74 swap value>> >>string relayout ;
76 : <label-control> ( model -- gadget )
77 "" label-control new-label
80 : text-theme ( gadget -- gadget )
81 monospace-font >>font ;
83 : reverse-video-theme ( label -- label )
84 sans-serif-font reverse-video-font >>font
85 COLOR: black <solid> >>interior ;
87 GENERIC: >label ( obj -- gadget )
88 M: string >label <label> ;
89 M: array >label <label> ;
91 M: f >label drop <gadget> ;
95 : label-on-left/right ( -- track )
99 { 5 5 } >>gap ; inline
102 : label-on-left ( gadget label -- track )
104 swap >label f track-add
107 : label-on-right ( label gadget -- track )
110 swap >label 1 track-add ;