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 make sequences quotations math.vectors combinators sorting
5 binary-search vectors dlists deques models threads
6 concurrency.flags math.order math.geometry.rect fry ;
11 : notify-ui-thread ( -- ) ui-notify-flag get-global raise-flag ;
13 TUPLE: gadget < rect pref-dim parent children orientation focus
14 visible? root? clipped? layout-state graft-state graft-node
15 interior boundary model ;
17 M: gadget equal? 2drop f ;
19 M: gadget hashcode* drop gadget hashcode* ;
21 M: gadget model-changed 2drop ;
23 : gadget-child ( gadget -- child ) children>> first ;
25 : nth-gadget ( n gadget -- child ) children>> nth ;
27 : init-gadget ( gadget -- gadget )
31 { f f } >>graft-state ; inline
33 : new-gadget ( class -- gadget ) new init-gadget ; inline
35 : <gadget> ( -- gadget )
38 : activate-control ( gadget -- )
46 : deactivate-control ( gadget -- )
47 dup model>> dup [ 2dup remove-connection ] when 2drop ;
49 : control-value ( control -- value )
52 : set-control-value ( value control -- )
55 : relative-loc ( fromgadget togadget -- loc )
59 over rect-loc [ [ parent>> ] dip relative-loc ] dip v+
62 GENERIC: user-input* ( str gadget -- ? )
64 M: gadget user-input* 2drop t ;
66 GENERIC: children-on ( rect/point gadget -- seq )
68 M: gadget children-on nip children>> ;
70 : ((fast-children-on)) ( gadget dim axis -- <=> )
71 [ swap loc>> v- ] dip v. 0 <=> ;
73 : (fast-children-on) ( dim axis children -- i )
74 -rot '[ _ _ ((fast-children-on)) ] search drop ;
76 : fast-children-on ( rect axis children -- from to )
77 [ [ rect-loc ] 2dip (fast-children-on) 0 or ]
78 [ [ rect-bounds v+ ] 2dip (fast-children-on) ?1+ ]
81 : inside? ( bounds gadget -- ? )
82 dup visible?>> [ intersects? ] [ 2drop f ] if ;
84 : (pick-up) ( point gadget -- gadget )
85 dupd children-on [ inside? ] with find-last nip ;
87 : pick-up ( point gadget -- child/f )
89 [ nip [ rect-loc v- ] keep pick-up ] [ drop nip ] if ;
91 : max-dim ( dims -- dim ) { 0 0 } [ vmax ] reduce ;
93 : dim-sum ( seq -- dim ) { 0 0 } [ v+ ] reduce ;
95 : each-child ( gadget quot -- )
96 [ children>> ] dip each ; inline
99 GENERIC: gadget-selection? ( gadget -- ? )
101 M: gadget gadget-selection? drop f ;
103 GENERIC: gadget-selection ( gadget -- string/f )
105 M: gadget gadget-selection drop f ;
108 GENERIC: gadget-text* ( gadget -- )
110 GENERIC: gadget-text-separator ( gadget -- str )
112 M: gadget gadget-text-separator
113 orientation>> { 0 1 } = "\n" "" ? ;
115 : gadget-seq-text ( seq gadget -- )
116 gadget-text-separator swap
117 [ dup % ] [ gadget-text* ] interleave drop ;
119 M: gadget gadget-text*
120 dup children>> swap gadget-seq-text ;
122 M: array gadget-text*
123 [ gadget-text* ] each ;
125 : gadget-text ( gadget -- string ) [ gadget-text* ] "" make ;
127 : invalidate ( gadget -- )
128 \ invalidate >>layout-state drop ;
130 : forget-pref-dim ( gadget -- ) f >>pref-dim drop ;
132 : layout-queue ( -- queue ) \ layout-queue get ;
134 : layout-later ( gadget -- )
135 #! When unit testing gadgets without the UI running, the
136 #! invalid queue is not initialized and we simply ignore
137 #! invalidation requests.
138 layout-queue [ push-front notify-ui-thread ] [ drop ] if* ;
142 : invalidate* ( gadget -- )
143 \ invalidate* >>layout-state
146 [ layout-later ] [ parent>> [ relayout ] when* ] if ;
148 : relayout ( gadget -- )
149 dup layout-state>> \ invalidate* eq?
150 [ drop ] [ invalidate* ] if ;
152 : relayout-1 ( gadget -- )
154 [ drop ] [ dup invalidate layout-later ] if ;
156 : show-gadget ( gadget -- ) t >>visible? drop ;
158 : hide-gadget ( gadget -- ) f >>visible? drop ;
162 GENERIC: dim-changed ( gadget -- )
164 M: gadget dim-changed
165 in-layout? get [ invalidate ] [ invalidate* ] if ;
167 M: gadget (>>dim) ( dim gadget -- )
168 2dup dim>> = [ 2drop ] [ tuck call-next-method dim-changed ] if ;
170 GENERIC: pref-dim* ( gadget -- dim )
172 : ?set-gadget-pref-dim ( dim gadget -- )
174 [ 2drop ] [ (>>pref-dim) ] if ;
176 : pref-dim ( gadget -- dim )
178 [ pref-dim* dup ] keep ?set-gadget-pref-dim
181 : pref-dims ( gadgets -- seq ) [ pref-dim ] map ;
183 M: gadget pref-dim* rect-dim ;
185 GENERIC: layout* ( gadget -- )
187 M: gadget layout* drop ;
189 : prefer ( gadget -- ) dup pref-dim >>dim drop ;
191 : validate ( gadget -- ) f >>layout-state drop ;
193 : layout ( gadget -- )
197 dup [ layout ] each-child
200 : graft-queue ( -- dlist ) \ graft-queue get ;
202 : unqueue-graft ( gadget -- )
203 [ graft-node>> graft-queue delete-node ]
204 [ [ first { t t } { f f } ? ] change-graft-state drop ] bi ;
206 : (queue-graft) ( gadget flags -- )
208 dup graft-queue push-front* >>graft-node drop
211 : queue-graft ( gadget -- )
212 { f t } (queue-graft) ;
214 : queue-ungraft ( gadget -- )
215 { t f } (queue-graft) ;
217 : graft-later ( gadget -- )
221 { { t f } [ unqueue-graft ] }
222 { { f f } [ queue-graft ] }
225 : ungraft-later ( gadget -- )
229 { { f t } [ unqueue-graft ] }
230 { { t t } [ queue-ungraft ] }
233 GENERIC: graft* ( gadget -- )
235 M: gadget graft* drop ;
237 : graft ( gadget -- )
238 dup graft-later [ graft ] each-child ;
240 GENERIC: ungraft* ( gadget -- )
242 M: gadget ungraft* drop ;
244 : ungraft ( gadget -- )
245 dup [ ungraft ] each-child ungraft-later ;
247 : (unparent) ( gadget -- )
252 : unfocus-gadget ( child gadget -- )
253 tuck focus>> eq? [ f >>focus ] when drop ;
257 : not-in-layout ( -- )
259 [ "Cannot add/remove gadgets in layout*" throw ] when ;
261 : unparent ( gadget -- )
266 [ unfocus-gadget ] 2keep
267 [ children>> delete ] keep
274 : (clear-gadget) ( gadget -- )
275 dup [ (unparent) ] each-child
276 f >>focus f >>children drop ;
278 : clear-gadget ( gadget -- )
280 dup (clear-gadget) relayout ;
282 : ((add-gadget)) ( parent child -- parent )
283 over children>> ?push >>children ;
285 : (add-gadget) ( parent child -- parent )
289 tuck graft-state>> second
294 : add-gadget ( parent child -- parent )
299 : add-gadgets ( parent children -- parent )
301 [ (add-gadget) ] each
304 : parents ( gadget -- seq )
305 [ parent>> ] follow ;
307 : each-parent ( gadget quot -- ? )
308 [ parents ] dip all? ; inline
310 : find-parent ( gadget quot -- parent )
311 [ parents ] dip find nip ; inline
313 : screen-loc ( gadget -- loc )
314 parents { 0 0 } [ rect-loc v+ ] reduce ;
316 : (screen-rect) ( gadget -- loc ext )
318 [ rect-extent ] dip (screen-rect)
319 [ tuck v+ ] dip vmin [ v+ ] dip
324 : screen-rect ( gadget -- rect )
325 (screen-rect) <extent-rect> ;
327 : child? ( parent child -- ? )
329 { [ 2dup eq? ] [ 2drop t ] }
330 { [ dup not ] [ 2drop f ] }
334 GENERIC: focusable-child* ( gadget -- child/t )
336 M: gadget focusable-child* drop t ;
338 : focusable-child ( gadget -- child )
340 dup t eq? [ drop ] [ nip focusable-child ] if ;
342 GENERIC: request-focus-on ( child gadget -- )
344 M: gadget request-focus-on parent>> request-focus-on ;
346 M: f request-focus-on 2drop ;
348 : request-focus ( gadget -- )
349 [ focusable-child ] keep request-focus-on ;
351 : focus-path ( world -- seq )