1 ! Copyright (C) 2005, 2009 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays hashtables kernel math namespaces
4 make sequences quotations math.vectors combinators sorting
5 binary-search vectors dlists deques models threads
6 concurrency.flags math.order math.rectangles fry locals ;
9 ! Values for orientation slot
10 CONSTANT: horizontal { 1 0 }
11 CONSTANT: vertical { 0 1 }
18 { orientation initial: { 0 1 } }
20 { visible? initial: t }
24 { graft-state initial: { f f } }
30 M: gadget equal? 2drop f ;
32 M: gadget hashcode* nip [ [ \ gadget counter ] unless* ] change-id id>> ;
34 M: gadget model-changed 2drop ;
36 : gadget-child ( gadget -- child ) children>> first ;
38 : nth-gadget ( n gadget -- child ) children>> nth ;
40 : <gadget> ( -- gadget )
43 : control-value ( control -- value )
46 : set-control-value ( value control -- )
49 : relative-loc ( fromgadget togadget -- loc )
53 [ [ parent>> ] dip relative-loc ] [ drop loc>> ] 2bi v+
56 GENERIC: user-input* ( str gadget -- ? )
58 M: gadget user-input* 2drop t ;
60 GENERIC: children-on ( rect gadget -- seq )
62 M: gadget children-on nip children>> ;
66 : ((fast-children-on)) ( gadget dim axis -- <=> )
67 [ swap loc>> v- ] dip v. 0 <=> ;
69 :: (fast-children-on) ( dim axis children -- i )
70 children [ dim axis ((fast-children-on)) ] search drop ;
74 : fast-children-on ( rect axis children -- from to )
75 [ [ loc>> ] 2dip (fast-children-on) 0 or ]
76 [ [ rect-bounds v+ ] 2dip (fast-children-on) ?1+ ]
79 M: gadget contains-rect? ( bounds gadget -- ? )
80 dup visible?>> [ call-next-method ] [ 2drop f ] if ;
82 M: gadget contains-point? ( loc gadget -- ? )
83 dup visible?>> [ call-next-method ] [ 2drop f ] if ;
85 : pick-up ( point gadget -- child/f )
86 2dup [ dup point>rect ] dip children-on
87 [ contains-point? ] with find-last nip
88 [ [ loc>> v- ] keep pick-up ] [ nip ] ?if ;
90 : max-dim ( dims -- dim ) { 0 0 } [ vmax ] reduce ;
92 : dim-sum ( seq -- dim ) { 0 0 } [ v+ ] reduce ;
94 : each-child ( gadget quot -- )
95 [ children>> ] dip each ; inline
98 GENERIC: gadget-selection? ( gadget -- ? )
100 M: gadget gadget-selection? drop f ;
102 GENERIC: gadget-selection ( gadget -- string/f )
104 M: gadget gadget-selection drop f ;
107 GENERIC: gadget-text* ( gadget -- )
109 GENERIC: gadget-text-separator ( gadget -- str )
111 M: gadget gadget-text-separator
112 orientation>> vertical = "\n" "" ? ;
114 : gadget-seq-text ( seq gadget -- )
115 gadget-text-separator '[ _ % ] [ gadget-text* ] interleave ;
117 M: gadget gadget-text*
118 [ children>> ] keep gadget-seq-text ;
120 M: array gadget-text*
121 [ gadget-text* ] each ;
123 : gadget-text ( gadget -- string ) [ gadget-text* ] "" make ;
129 SYMBOL: ui-notify-flag
131 : notify-ui-thread ( -- ) ui-notify-flag get-global raise-flag ;
133 : invalidate ( gadget -- )
134 \ invalidate >>layout-state drop ;
136 : forget-pref-dim ( gadget -- ) f >>pref-dim drop ;
138 : layout-queue ( -- queue ) \ layout-queue get ;
140 : layout-later ( gadget -- )
141 #! When unit testing gadgets without the UI running, the
142 #! invalid queue is not initialized and we simply ignore
143 #! invalidation requests.
144 layout-queue [ push-front notify-ui-thread ] [ drop ] if* ;
146 : invalidate* ( gadget -- )
147 \ invalidate* >>layout-state
150 [ layout-later ] [ parent>> [ relayout ] when* ] if ;
154 : relayout ( gadget -- )
155 dup layout-state>> \ invalidate* eq?
156 [ drop ] [ invalidate* ] if ;
158 : relayout-1 ( gadget -- )
160 [ drop ] [ dup invalidate layout-later ] if ;
162 : show-gadget ( gadget -- ) t >>visible? drop ;
164 : hide-gadget ( gadget -- ) f >>visible? drop ;
170 GENERIC: dim-changed ( gadget -- )
172 M: gadget dim-changed
173 in-layout? get [ invalidate ] [ invalidate* ] if ;
177 M: gadget (>>dim) ( dim gadget -- )
180 [ [ nip ] [ call-next-method ] 2bi dim-changed ] if ;
182 GENERIC: pref-dim* ( gadget -- dim )
184 : pref-dim ( gadget -- dim )
186 [ pref-dim* ] keep dup layout-state>>
187 [ drop ] [ dupd (>>pref-dim) ] if
190 : pref-dims ( gadgets -- seq ) [ pref-dim ] map ;
192 M: gadget pref-dim* dim>> ;
194 GENERIC: layout* ( gadget -- )
196 M: gadget layout* drop ;
198 : prefer ( gadget -- ) dup pref-dim >>dim drop ;
200 : layout ( gadget -- )
204 dup [ layout ] each-child
207 GENERIC: graft* ( gadget -- )
209 M: gadget graft* drop ;
211 GENERIC: ungraft* ( gadget -- )
213 M: gadget ungraft* drop ;
217 : graft-queue ( -- dlist )
218 \ graft-queue get [ "UI not running" throw ] unless* ;
220 : unqueue-graft ( gadget -- )
221 [ graft-node>> graft-queue delete-node ]
222 [ [ first { t t } { f f } ? ] change-graft-state drop ] bi ;
224 : (queue-graft) ( gadget flags -- )
226 dup graft-queue push-front* >>graft-node drop
229 : queue-graft ( gadget -- )
230 { f t } (queue-graft) ;
232 : queue-ungraft ( gadget -- )
233 { t f } (queue-graft) ;
235 : graft-later ( gadget -- )
239 { { t f } [ unqueue-graft ] }
240 { { f f } [ queue-graft ] }
243 : graft ( gadget -- )
244 dup graft-later [ graft ] each-child ;
246 : ungraft-later ( gadget -- )
250 { { f t } [ unqueue-graft ] }
251 { { t t } [ queue-ungraft ] }
254 : ungraft ( gadget -- )
255 dup [ ungraft ] each-child ungraft-later ;
257 : activate-control ( gadget -- )
265 : deactivate-control ( gadget -- )
266 dup model>> dup [ 2dup remove-connection ] when 2drop ;
268 : notify ( gadget -- )
270 [ first { f f } { t t } ? >>graft-state ] keep
272 { { f t } [ dup activate-control graft* ] }
273 { { t f } [ dup deactivate-control ungraft* ] }
276 : notify-queued ( -- )
277 graft-queue [ notify ] slurp-deque ;
279 : (unparent) ( gadget -- )
284 : (clear-gadget) ( gadget -- )
285 dup [ (unparent) ] each-child
286 f >>focus f >>children drop ;
288 : unfocus-gadget ( child gadget -- )
289 [ nip ] [ focus>> eq? ] 2bi [ f >>focus ] when drop ;
293 : not-in-layout ( -- )
295 [ "Cannot add/remove gadgets in layout*" throw ] when ;
297 GENERIC: remove-gadget ( gadget parent -- )
299 M: gadget remove-gadget 2drop ;
301 : unparent ( gadget -- )
309 [ children>> delete ]
316 : clear-gadget ( gadget -- )
318 [ (clear-gadget) ] [ relayout ] bi ;
322 : (add-gadget) ( child parent -- )
326 [ [ ?push ] change-children drop ]
327 [ graft-state>> second [ graft ] [ drop ] if ]
332 : add-gadget ( parent child -- parent )
337 : add-gadgets ( parent children -- parent )
339 [ over (add-gadget) ] each
342 : parents ( gadget -- seq )
343 [ parent>> ] follow ;
345 : each-parent ( gadget quot -- ? )
346 [ parents ] dip all? ; inline
348 : find-parent ( gadget quot -- parent )
349 [ parents ] dip find nip ; inline
351 : screen-loc ( gadget -- loc )
352 parents { 0 0 } [ loc>> v+ ] reduce ;
356 : (screen-rect) ( gadget -- loc ext )
358 [ rect-extent ] dip (screen-rect)
359 [ [ nip ] [ v+ ] 2bi ] dip [ v+ ] [ vmin ] 2bi*
366 : screen-rect ( gadget -- rect )
367 (screen-rect) <extent-rect> ;
369 : child? ( parent child -- ? )
371 { [ 2dup eq? ] [ 2drop t ] }
372 { [ dup not ] [ 2drop f ] }
376 GENERIC: focusable-child* ( gadget -- child/t )
378 M: gadget focusable-child* drop t ;
380 : focusable-child ( gadget -- child )
382 dup t eq? [ drop ] [ nip focusable-child ] if ;
384 GENERIC: request-focus-on ( child gadget -- )
386 M: gadget request-focus-on parent>> request-focus-on ;
388 M: f request-focus-on 2drop ;
390 : request-focus ( gadget -- )
391 [ focusable-child ] keep request-focus-on ;
393 : focus-path ( gadget -- seq )
396 USING: vocabs vocabs.loader ;
398 "prettyprint" vocab [ "ui.gadgets.prettyprint" require ] when