1 ! Copyright (C) 2005, 2006 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: errors generic hashtables kernel math
4 namespaces queues sequences ;
9 : invalidate ( gadget -- )
10 \ relayout-1 swap set-gadget-state ;
12 : forget-pref-dim ( gadget -- ) f swap set-gadget-pref-dim ;
14 : invalid ( -- queue ) \ invalid get-global ;
16 : add-invalid ( gadget -- )
17 #! When unit testing gadgets without the UI running, the
18 #! invalid queue is not initialized and we simply ignore
19 #! invalidation requests.
20 invalid [ enque ] [ drop ] if* ;
24 : invalidate* ( gadget -- )
25 \ relayout over set-gadget-state
28 [ add-invalid ] [ gadget-parent [ relayout ] when* ] if ;
30 : relayout ( gadget -- )
31 dup gadget-state \ relayout eq?
32 [ drop ] [ invalidate* ] if ;
34 : relayout-1 ( gadget -- )
36 [ drop ] [ dup invalidate add-invalid ] if ;
38 : show-gadget t swap set-gadget-visible? ;
40 : hide-gadget f swap set-gadget-visible? ;
42 : (set-rect-dim) ( dim gadget quot -- )
44 [ [ 2drop ] [ set-rect-dim ] if ] 2keep
45 [ drop ] r> if ; inline
47 : set-layout-dim ( dim gadget -- )
48 [ invalidate ] (set-rect-dim) ;
50 : set-gadget-dim ( dim gadget -- )
51 [ invalidate* ] (set-rect-dim) ;
53 GENERIC: pref-dim* ( gadget -- dim )
55 : ?set-gadget-pref-dim ( dim gadget -- )
56 dup gadget-state [ 2drop ] [ set-gadget-pref-dim ] if ;
58 : pref-dim ( gadget -- dim )
59 dup gadget-pref-dim [ ] [
60 [ pref-dim* dup ] keep ?set-gadget-pref-dim
63 M: gadget pref-dim* rect-dim ;
65 GENERIC: layout* ( gadget -- )
67 M: gadget layout* drop ;
69 : prefer ( gadget -- ) dup pref-dim swap set-layout-dim ;
73 : layout-children ( gadget -- ) [ layout ] each-child ;
75 : layout ( gadget -- )
77 f over set-gadget-state
78 dup layout* dup layout-children
81 TUPLE: pack align fill gap ;
83 : pref-dims ( gadget -- list ) [ pref-dim ] map ;
85 : orient ( gadget seq1 seq2 -- seq )
86 >r >r gadget-orientation r> r> [ pick set-axis ] 2map nip ;
88 : packed-dim-2 ( gadget sizes -- list )
89 [ over rect-dim over v- rot pack-fill v*n v+ ] map-with ;
91 : packed-dims ( gadget sizes -- seq )
92 2dup packed-dim-2 swap orient ;
94 : gap-locs ( gap sizes -- seq )
95 { 0 0 } [ v+ over v+ ] accumulate 2nip ;
97 : aligned-locs ( gadget sizes -- seq )
98 [ >r dup pack-align swap rect-dim r> v- n*v ] map-with ;
100 : packed-locs ( gadget sizes -- seq )
101 over pack-gap over gap-locs >r dupd aligned-locs r> orient ;
103 : round-dims ( seq -- newseq )
105 [ swap v- dup [ ceiling >fixnum ] map [ swap v- ] keep ] map
108 : pack-layout ( pack sizes -- )
109 round-dims over gadget-children
110 >r dupd packed-dims r> 2dup [ set-layout-dim ] 2each
111 >r packed-locs r> [ set-rect-loc ] 2each ;
113 C: pack ( orientation -- pack )
115 [ set-gadget-orientation ] keep
116 0 over set-pack-align
118 { 0 0 } over set-pack-gap ;
120 : delegate>pack ( orientation tuple -- )
121 >r <pack> r> set-delegate ;
123 : <pile> ( -- pack ) { 0 1 } <pack> ;
125 : <shelf> ( -- pack ) { 1 0 } <pack> ;
127 : dim-sum ( seq -- dim ) { 0 0 } [ v+ ] reduce ;
129 : gap-dims ( gap sizes -- seeq )
130 [ dim-sum ] keep length 1 [-] rot n*v v+ ;
132 : pack-pref-dim ( gadget sizes -- dim )
133 over pack-gap over gap-dims >r max-dim r>
134 rot gadget-orientation set-axis ;
137 dup gadget-children pref-dims pack-pref-dim ;
140 dup gadget-children pref-dims pack-layout ;
142 : (fast-children-on) ( dim axis gadgets -- i )
143 swapd [ rect-loc v- over v. ] binsearch nip ;
145 : fast-children-on ( rect axis children -- from to )
147 >r >r dup rect-loc swap rect-dim v+ origin get v-
148 r> r> (fast-children-on) 1+
150 >r >r rect-loc origin get v-
151 r> r> (fast-children-on)
155 M: pack children-on ( rect gadget -- seq )
156 dup gadget-orientation swap gadget-children
157 [ fast-children-on ] keep <slice> ;