1 ! Copyright (C) 2005, 2009 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays hashtables kernel models 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 ;
9 ! Values for orientation slot
10 CONSTANT: horizontal { 1 0 }
11 CONSTANT: vertical { 0 1 }
17 { orientation initial: { 0 1 } }
19 { visible? initial: t }
23 { graft-state initial: { f f } }
29 M: gadget equal? 2drop f ;
31 M: gadget hashcode* drop gadget hashcode* ;
33 M: gadget model-changed 2drop ;
35 : gadget-child ( gadget -- child ) children>> first ;
37 : nth-gadget ( n gadget -- child ) children>> nth ;
39 : <gadget> ( -- gadget )
42 : control-value ( control -- value )
45 : set-control-value ( value control -- )
48 : relative-loc ( fromgadget togadget -- loc )
52 [ [ parent>> ] dip relative-loc ] [ drop loc>> ] 2bi v+
55 GENERIC: user-input* ( str gadget -- ? )
57 M: gadget user-input* 2drop t ;
59 GENERIC: children-on ( rect gadget -- seq )
61 M: gadget children-on nip children>> ;
65 : ((fast-children-on)) ( gadget dim axis -- <=> )
66 [ swap loc>> v- ] dip v. 0 <=> ;
68 : (fast-children-on) ( dim axis children -- i )
69 -rot '[ _ _ ((fast-children-on)) ] search drop ;
73 : fast-children-on ( rect axis children -- from to )
74 [ [ loc>> ] 2dip (fast-children-on) 0 or ]
75 [ [ rect-bounds v+ ] 2dip (fast-children-on) ?1+ ]
78 M: gadget contains-rect? ( bounds gadget -- ? )
79 dup visible?>> [ call-next-method ] [ 2drop f ] if ;
81 M: gadget contains-point? ( loc gadget -- ? )
82 dup visible?>> [ call-next-method ] [ 2drop f ] if ;
84 : pick-up ( point gadget -- child/f )
85 2dup [ dup point>rect ] dip children-on
86 [ contains-point? ] with find-last nip
87 [ [ loc>> v- ] keep pick-up ] [ nip ] ?if ;
89 : max-dim ( dims -- dim ) { 0 0 } [ vmax ] reduce ;
91 : dim-sum ( seq -- dim ) { 0 0 } [ v+ ] reduce ;
93 : each-child ( gadget quot -- )
94 [ children>> ] dip each ; inline
97 GENERIC: gadget-selection? ( gadget -- ? )
99 M: gadget gadget-selection? drop f ;
101 GENERIC: gadget-selection ( gadget -- string/f )
103 M: gadget gadget-selection drop f ;
106 GENERIC: gadget-text* ( gadget -- )
108 GENERIC: gadget-text-separator ( gadget -- str )
110 M: gadget gadget-text-separator
111 orientation>> vertical = "\n" "" ? ;
113 : gadget-seq-text ( seq gadget -- )
114 gadget-text-separator swap
115 [ dup % ] [ gadget-text* ] interleave drop ;
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 : ui-state ( symbol -- value ) get [ "UI not running" throw ] unless* ;
140 : layout-queue ( -- queue ) \ layout-queue ui-state ;
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* ;
148 : invalidate* ( gadget -- )
149 \ invalidate* >>layout-state
152 [ 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 >>visible? drop ;
166 : hide-gadget ( gadget -- ) f >>visible? drop ;
172 GENERIC: dim-changed ( gadget -- )
174 M: gadget dim-changed
175 in-layout? get [ invalidate ] [ invalidate* ] if ;
179 M: gadget (>>dim) ( dim gadget -- )
182 [ [ nip ] [ call-next-method ] 2bi dim-changed ] if ;
184 GENERIC: pref-dim* ( gadget -- dim )
186 : pref-dim ( gadget -- dim )
188 [ pref-dim* ] keep dup layout-state>>
189 [ drop ] [ dupd (>>pref-dim) ] if
192 : pref-dims ( gadgets -- seq ) [ pref-dim ] map ;
194 M: gadget pref-dim* dim>> ;
196 GENERIC: layout* ( gadget -- )
198 M: gadget layout* drop ;
200 : prefer ( gadget -- ) dup pref-dim >>dim drop ;
202 : layout ( gadget -- )
206 dup [ layout ] each-child
209 GENERIC: graft* ( gadget -- )
211 M: gadget graft* drop ;
213 GENERIC: ungraft* ( gadget -- )
215 M: gadget ungraft* drop ;
219 : graft-queue ( -- dlist ) \ graft-queue ui-state ;
221 : unqueue-graft ( gadget -- )
222 [ graft-node>> graft-queue delete-node ]
223 [ [ first { t t } { f f } ? ] change-graft-state drop ] bi ;
225 : (queue-graft) ( gadget flags -- )
227 dup graft-queue push-front* >>graft-node drop
230 : queue-graft ( gadget -- )
231 { f t } (queue-graft) ;
233 : queue-ungraft ( gadget -- )
234 { t f } (queue-graft) ;
236 : graft-later ( gadget -- )
240 { { t f } [ unqueue-graft ] }
241 { { f f } [ queue-graft ] }
244 : graft ( gadget -- )
245 dup graft-later [ graft ] each-child ;
247 : ungraft-later ( gadget -- )
251 { { f t } [ unqueue-graft ] }
252 { { t t } [ queue-ungraft ] }
255 : ungraft ( gadget -- )
256 dup [ ungraft ] each-child ungraft-later ;
258 : activate-control ( gadget -- )
266 : deactivate-control ( gadget -- )
267 dup model>> dup [ 2dup remove-connection ] when 2drop ;
269 : notify ( gadget -- )
271 [ first { f f } { t t } ? >>graft-state ] keep
273 { { f t } [ dup activate-control graft* ] }
274 { { t f } [ dup deactivate-control ungraft* ] }
277 : notify-queued ( -- )
278 graft-queue [ notify ] slurp-deque ;
280 : (unparent) ( gadget -- )
285 : (clear-gadget) ( gadget -- )
286 dup [ (unparent) ] each-child
287 f >>focus f >>children drop ;
289 : unfocus-gadget ( child gadget -- )
290 [ nip ] [ focus>> eq? ] 2bi [ f >>focus ] when drop ;
294 : not-in-layout ( -- )
296 [ "Cannot add/remove gadgets in layout*" throw ] when ;
298 GENERIC: remove-gadget ( gadget parent -- )
300 M: gadget remove-gadget 2drop ;
302 : unparent ( gadget -- )
310 [ children>> delete ]
317 : clear-gadget ( gadget -- )
319 [ (clear-gadget) ] [ relayout ] bi ;
323 : (add-gadget) ( child parent -- )
327 [ [ ?push ] change-children drop ]
328 [ graft-state>> second [ graft ] [ drop ] if ]
333 : add-gadget ( parent child -- parent )
338 : add-gadgets ( parent children -- parent )
340 [ over (add-gadget) ] each
343 : parents ( gadget -- seq )
344 [ parent>> ] follow ;
346 : each-parent ( gadget quot -- ? )
347 [ parents ] dip all? ; inline
349 : find-parent ( gadget quot -- parent )
350 [ parents ] dip find nip ; inline
352 : screen-loc ( gadget -- loc )
353 parents { 0 0 } [ loc>> v+ ] reduce ;
357 : (screen-rect) ( gadget -- loc ext )
359 [ rect-extent ] dip (screen-rect)
360 [ [ nip ] [ v+ ] 2bi ] dip [ v+ ] [ vmin ] 2bi*
367 : screen-rect ( gadget -- rect )
368 (screen-rect) <extent-rect> ;
370 : child? ( parent child -- ? )
372 { [ 2dup eq? ] [ 2drop t ] }
373 { [ dup not ] [ 2drop f ] }
377 GENERIC: focusable-child* ( gadget -- child/t )
379 M: gadget focusable-child* drop t ;
381 : focusable-child ( gadget -- child )
383 dup t eq? [ drop ] [ nip focusable-child ] if ;
385 GENERIC: request-focus-on ( child gadget -- )
387 M: gadget request-focus-on parent>> request-focus-on ;
389 M: f request-focus-on 2drop ;
391 : request-focus ( gadget -- )
392 [ focusable-child ] keep request-focus-on ;
394 : focus-path ( gadget -- seq )