1 ! Copyright (C) 2005, 2008 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays hashtables kernel models math namespaces
4 sequences quotations math.vectors combinators sorting
5 binary-search vectors dlists deques models threads
6 concurrency.flags math.order math.geometry.rect ;
10 SYMBOL: ui-notify-flag
12 : notify-ui-thread ( -- ) ui-notify-flag get-global raise-flag ;
15 pref-dim parent children orientation focus
16 visible? root? clipped? layout-state graft-state graft-node
20 M: gadget equal? 2drop f ;
22 M: gadget hashcode* drop gadget hashcode* ;
24 M: gadget model-changed 2drop ;
26 : gadget-child ( gadget -- child ) children>> first ;
28 : nth-gadget ( n gadget -- child ) children>> nth ;
30 : init-gadget ( gadget -- gadget )
34 { f f } >>graft-state ; inline
36 : new-gadget ( class -- gadget ) new init-gadget ; inline
38 : <gadget> ( -- gadget )
41 : activate-control ( gadget -- )
49 : deactivate-control ( gadget -- )
50 dup model>> dup [ 2dup remove-connection ] when 2drop ;
52 : control-value ( control -- value )
55 : set-control-value ( value control -- )
58 : relative-loc ( fromgadget togadget -- loc )
63 >r parent>> r> relative-loc
67 GENERIC: user-input* ( str gadget -- ? )
69 M: gadget user-input* 2drop t ;
71 GENERIC: children-on ( rect/point gadget -- seq )
73 M: gadget children-on nip children>> ;
75 : ((fast-children-on)) ( gadget dim axis -- <=> )
76 [ swap loc>> v- ] dip v. 0 <=> ;
78 : (fast-children-on) ( dim axis children -- i )
79 -rot [ ((fast-children-on)) ] 2curry search drop ;
81 : fast-children-on ( rect axis children -- from to )
82 [ [ rect-loc ] 2dip (fast-children-on) 0 or ]
83 [ [ rect-bounds v+ ] 2dip (fast-children-on) ?1+ ]
86 : inside? ( bounds gadget -- ? )
87 dup visible?>> [ intersects? ] [ 2drop f ] if ;
89 : (pick-up) ( point gadget -- gadget )
90 dupd children-on [ inside? ] with find-last nip ;
92 : pick-up ( point gadget -- child/f )
94 [ nip [ rect-loc v- ] keep pick-up ] [ rot 2drop ] if ;
96 : max-dim ( dims -- dim ) { 0 0 } [ vmax ] reduce ;
98 : dim-sum ( seq -- dim ) { 0 0 } [ v+ ] reduce ;
100 : orient ( gadget seq1 seq2 -- seq )
101 >r >r orientation>> r> r> [ pick set-axis ] 2map nip ;
103 : each-child ( gadget quot -- )
104 >r children>> r> each ; inline
107 GENERIC: gadget-selection? ( gadget -- ? )
109 M: gadget gadget-selection? drop f ;
111 GENERIC: gadget-selection ( gadget -- string/f )
113 M: gadget gadget-selection drop f ;
116 GENERIC: gadget-text* ( gadget -- )
118 GENERIC: gadget-text-separator ( gadget -- str )
120 M: gadget gadget-text-separator
121 orientation>> { 0 1 } = "\n" "" ? ;
123 : gadget-seq-text ( seq gadget -- )
124 gadget-text-separator swap
125 [ dup % ] [ gadget-text* ] interleave drop ;
127 M: gadget gadget-text*
128 dup children>> swap gadget-seq-text ;
130 M: array gadget-text*
131 [ gadget-text* ] each ;
133 : gadget-text ( gadget -- string ) [ gadget-text* ] "" make ;
135 : invalidate ( gadget -- )
136 \ invalidate swap (>>layout-state) ;
138 : forget-pref-dim ( gadget -- ) f swap (>>pref-dim) ;
140 : layout-queue ( -- queue ) \ layout-queue get ;
142 : layout-later ( gadget -- )
143 #! When unit testing gadgets without the UI running, the
144 #! invalid queue is not initialized and we simply ignore
145 #! invalidation requests.
146 layout-queue [ push-front notify-ui-thread ] [ drop ] if* ;
150 : invalidate* ( gadget -- )
151 \ invalidate* over (>>layout-state)
154 [ layout-later ] [ parent>> [ relayout ] when* ] if ;
156 : relayout ( gadget -- )
157 dup layout-state>> \ invalidate* eq?
158 [ drop ] [ invalidate* ] if ;
160 : relayout-1 ( gadget -- )
162 [ drop ] [ dup invalidate layout-later ] if ;
164 : show-gadget ( gadget -- ) t swap (>>visible?) ;
166 : hide-gadget ( gadget -- ) f swap (>>visible?) ;
170 : do-invalidate ( gadget -- gadget )
171 in-layout? get [ dup invalidate ] [ dup invalidate* ] if ;
173 M: gadget (>>dim) ( dim gadget -- )
176 [ tuck call-next-method do-invalidate drop ]
179 GENERIC: pref-dim* ( gadget -- dim )
181 : ?set-gadget-pref-dim ( dim gadget -- )
183 [ 2drop ] [ (>>pref-dim) ] if ;
185 : pref-dim ( gadget -- dim )
187 [ pref-dim* dup ] keep ?set-gadget-pref-dim
190 : pref-dims ( gadgets -- seq ) [ pref-dim ] map ;
192 M: gadget pref-dim* rect-dim ;
194 GENERIC: layout* ( gadget -- )
196 M: gadget layout* drop ;
198 : prefer ( gadget -- ) dup pref-dim swap (>>dim) ;
200 : validate ( gadget -- ) f swap (>>layout-state) ;
202 : layout ( gadget -- )
206 dup [ layout ] each-child
209 : graft-queue ( -- dlist ) \ graft-queue get ;
211 : unqueue-graft ( gadget -- )
212 [ graft-node>> graft-queue delete-node ]
213 [ [ first { t t } { f f } ? ] change-graft-state drop ] bi ;
215 : (queue-graft) ( gadget flags -- )
217 dup graft-queue push-front* >>graft-node drop
220 : queue-graft ( gadget -- )
221 { f t } (queue-graft) ;
223 : queue-ungraft ( gadget -- )
224 { t f } (queue-graft) ;
226 : graft-later ( gadget -- )
230 { { t f } [ unqueue-graft ] }
231 { { f f } [ queue-graft ] }
234 : ungraft-later ( gadget -- )
238 { { f t } [ unqueue-graft ] }
239 { { t t } [ queue-ungraft ] }
242 GENERIC: graft* ( gadget -- )
244 M: gadget graft* drop ;
246 : graft ( gadget -- )
247 dup graft-later [ graft ] each-child ;
249 GENERIC: ungraft* ( gadget -- )
251 M: gadget ungraft* drop ;
253 : ungraft ( gadget -- )
254 dup [ ungraft ] each-child ungraft-later ;
256 : (unparent) ( gadget -- )
261 : unfocus-gadget ( child gadget -- )
263 [ f swap (>>focus) ] [ drop ] if ;
267 : not-in-layout ( -- )
269 [ "Cannot add/remove gadgets in layout*" throw ] when ;
271 : unparent ( gadget -- )
276 [ unfocus-gadget ] 2keep
277 [ children>> delete ] keep
284 : (clear-gadget) ( gadget -- )
285 dup [ (unparent) ] each-child
287 f swap (>>children) ;
289 : clear-gadget ( gadget -- )
291 dup (clear-gadget) relayout ;
293 : ((add-gadget)) ( parent child -- parent )
294 over children>> ?push >>children ;
296 : (add-gadget) ( parent child -- parent )
300 tuck graft-state>> second
305 : add-gadget ( parent child -- parent )
310 : add-gadgets ( parent children -- parent )
312 [ (add-gadget) ] each
315 : parents ( gadget -- seq )
316 [ parent>> ] follow ;
318 : each-parent ( gadget quot -- ? )
319 >r parents r> all? ; inline
321 : find-parent ( gadget quot -- parent )
322 >r parents r> find nip ; inline
324 : screen-loc ( gadget -- loc )
325 parents { 0 0 } [ rect-loc v+ ] reduce ;
327 : (screen-rect) ( gadget -- loc ext )
329 >r rect-extent r> (screen-rect)
330 >r tuck v+ r> vmin >r v+ r>
335 : screen-rect ( gadget -- rect )
336 (screen-rect) <extent-rect> ;
338 : child? ( parent child -- ? )
340 { [ 2dup eq? ] [ 2drop t ] }
341 { [ dup not ] [ 2drop f ] }
345 GENERIC: focusable-child* ( gadget -- child/t )
347 M: gadget focusable-child* drop t ;
349 : focusable-child ( gadget -- child )
351 dup t eq? [ drop ] [ nip focusable-child ] if ;
353 GENERIC: request-focus-on ( child gadget -- )
355 M: gadget request-focus-on parent>> request-focus-on ;
357 M: f request-focus-on 2drop ;
359 : request-focus ( gadget -- )
360 [ focusable-child ] keep request-focus-on ;
362 : focus-path ( world -- seq )