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 ;
11 : notify-ui-thread ( -- ) ui-notify-flag get-global raise-flag ;
14 pref-dim parent children orientation focus
15 visible? root? clipped? layout-state graft-state graft-node
19 M: gadget equal? 2drop f ;
21 M: gadget hashcode* drop gadget hashcode* ;
23 M: gadget model-changed 2drop ;
25 : gadget-child ( gadget -- child ) children>> first ;
27 : nth-gadget ( n gadget -- child ) children>> nth ;
29 : init-gadget ( gadget -- gadget )
33 { f f } >>graft-state ; inline
35 : new-gadget ( class -- gadget ) new init-gadget ; inline
37 : <gadget> ( -- gadget )
40 : activate-control ( gadget -- )
48 : deactivate-control ( gadget -- )
49 dup model>> dup [ 2dup remove-connection ] when 2drop ;
51 : control-value ( control -- value )
54 : set-control-value ( value control -- )
57 : relative-loc ( fromgadget togadget -- loc )
62 >r parent>> r> relative-loc
66 GENERIC: user-input* ( str gadget -- ? )
68 M: gadget user-input* 2drop t ;
70 GENERIC: children-on ( rect/point gadget -- seq )
72 M: gadget children-on nip children>> ;
74 : ((fast-children-on)) ( gadget dim axis -- <=> )
75 [ swap loc>> v- ] dip v. 0 <=> ;
77 : (fast-children-on) ( dim axis children -- i )
78 -rot [ ((fast-children-on)) ] 2curry search drop ;
80 : fast-children-on ( rect axis children -- from to )
81 [ [ rect-loc ] 2dip (fast-children-on) 0 or ]
82 [ [ rect-bounds v+ ] 2dip (fast-children-on) ?1+ ]
85 : inside? ( bounds gadget -- ? )
86 dup visible?>> [ intersects? ] [ 2drop f ] if ;
88 : (pick-up) ( point gadget -- gadget )
89 dupd children-on [ inside? ] with find-last nip ;
91 : pick-up ( point gadget -- child/f )
93 [ nip [ rect-loc v- ] keep pick-up ] [ rot 2drop ] if ;
95 : max-dim ( dims -- dim ) { 0 0 } [ vmax ] reduce ;
97 : dim-sum ( seq -- dim ) { 0 0 } [ v+ ] reduce ;
99 : orient ( gadget seq1 seq2 -- seq )
100 >r >r orientation>> r> r> [ pick set-axis ] 2map nip ;
102 : each-child ( gadget quot -- )
103 >r children>> r> each ; inline
106 GENERIC: gadget-selection? ( gadget -- ? )
108 M: gadget gadget-selection? drop f ;
110 GENERIC: gadget-selection ( gadget -- string/f )
112 M: gadget gadget-selection drop f ;
115 GENERIC: gadget-text* ( gadget -- )
117 GENERIC: gadget-text-separator ( gadget -- str )
119 M: gadget gadget-text-separator
120 orientation>> { 0 1 } = "\n" "" ? ;
122 : gadget-seq-text ( seq gadget -- )
123 gadget-text-separator swap
124 [ dup % ] [ gadget-text* ] interleave drop ;
126 M: gadget gadget-text*
127 dup children>> swap gadget-seq-text ;
129 M: array gadget-text*
130 [ gadget-text* ] each ;
132 : gadget-text ( gadget -- string ) [ gadget-text* ] "" make ;
134 : invalidate ( gadget -- )
135 \ invalidate >>layout-state drop ;
137 : forget-pref-dim ( gadget -- ) f >>pref-dim drop ;
139 : layout-queue ( -- queue ) \ layout-queue get ;
141 : layout-later ( gadget -- )
142 #! When unit testing gadgets without the UI running, the
143 #! invalid queue is not initialized and we simply ignore
144 #! invalidation requests.
145 layout-queue [ push-front notify-ui-thread ] [ drop ] if* ;
149 : invalidate* ( gadget -- )
150 \ invalidate* >>layout-state
153 [ layout-later ] [ parent>> [ relayout ] when* ] if ;
155 : relayout ( gadget -- )
156 dup layout-state>> \ invalidate* eq?
157 [ drop ] [ invalidate* ] if ;
159 : relayout-1 ( gadget -- )
161 [ drop ] [ dup invalidate layout-later ] if ;
163 : show-gadget ( gadget -- ) t >>visible? drop ;
165 : hide-gadget ( gadget -- ) f >>visible? drop ;
169 GENERIC: dim-changed ( gadget -- )
171 M: gadget dim-changed
172 in-layout? get [ invalidate ] [ invalidate* ] if ;
174 M: gadget (>>dim) ( dim gadget -- )
175 2dup dim>> = [ 2drop ] [ tuck call-next-method dim-changed ] if ;
177 GENERIC: pref-dim* ( gadget -- dim )
179 : ?set-gadget-pref-dim ( dim gadget -- )
181 [ 2drop ] [ (>>pref-dim) ] if ;
183 : pref-dim ( gadget -- dim )
185 [ pref-dim* dup ] keep ?set-gadget-pref-dim
188 : pref-dims ( gadgets -- seq ) [ pref-dim ] map ;
190 M: gadget pref-dim* rect-dim ;
192 GENERIC: layout* ( gadget -- )
194 M: gadget layout* drop ;
196 : prefer ( gadget -- ) dup pref-dim >>dim drop ;
198 : validate ( gadget -- ) f >>layout-state drop ;
200 : layout ( gadget -- )
204 dup [ layout ] each-child
207 : graft-queue ( -- dlist ) \ graft-queue get ;
209 : unqueue-graft ( gadget -- )
210 [ graft-node>> graft-queue delete-node ]
211 [ [ first { t t } { f f } ? ] change-graft-state drop ] bi ;
213 : (queue-graft) ( gadget flags -- )
215 dup graft-queue push-front* >>graft-node drop
218 : queue-graft ( gadget -- )
219 { f t } (queue-graft) ;
221 : queue-ungraft ( gadget -- )
222 { t f } (queue-graft) ;
224 : graft-later ( gadget -- )
228 { { t f } [ unqueue-graft ] }
229 { { f f } [ queue-graft ] }
232 : ungraft-later ( gadget -- )
236 { { f t } [ unqueue-graft ] }
237 { { t t } [ queue-ungraft ] }
240 GENERIC: graft* ( gadget -- )
242 M: gadget graft* drop ;
244 : graft ( gadget -- )
245 dup graft-later [ graft ] each-child ;
247 GENERIC: ungraft* ( gadget -- )
249 M: gadget ungraft* drop ;
251 : ungraft ( gadget -- )
252 dup [ ungraft ] each-child ungraft-later ;
254 : (unparent) ( gadget -- )
259 : unfocus-gadget ( child gadget -- )
260 tuck focus>> eq? [ f >>focus ] when drop ;
264 : not-in-layout ( -- )
266 [ "Cannot add/remove gadgets in layout*" throw ] when ;
268 : unparent ( gadget -- )
273 [ unfocus-gadget ] 2keep
274 [ children>> delete ] keep
281 : (clear-gadget) ( gadget -- )
282 dup [ (unparent) ] each-child
283 f >>focus f >>children drop ;
285 : clear-gadget ( gadget -- )
287 dup (clear-gadget) relayout ;
289 : ((add-gadget)) ( parent child -- parent )
290 over children>> ?push >>children ;
292 : (add-gadget) ( parent child -- parent )
296 tuck graft-state>> second
301 : add-gadget ( parent child -- parent )
306 : add-gadgets ( parent children -- parent )
308 [ (add-gadget) ] each
311 : parents ( gadget -- seq )
312 [ parent>> ] follow ;
314 : each-parent ( gadget quot -- ? )
315 >r parents r> all? ; inline
317 : find-parent ( gadget quot -- parent )
318 >r parents r> find nip ; inline
320 : screen-loc ( gadget -- loc )
321 parents { 0 0 } [ rect-loc v+ ] reduce ;
323 : (screen-rect) ( gadget -- loc ext )
325 >r rect-extent r> (screen-rect)
326 >r tuck v+ r> vmin >r v+ r>
331 : screen-rect ( gadget -- rect )
332 (screen-rect) <extent-rect> ;
334 : child? ( parent child -- ? )
336 { [ 2dup eq? ] [ 2drop t ] }
337 { [ dup not ] [ 2drop f ] }
341 GENERIC: focusable-child* ( gadget -- child/t )
343 M: gadget focusable-child* drop t ;
345 : focusable-child ( gadget -- child )
347 dup t eq? [ drop ] [ nip focusable-child ] if ;
349 GENERIC: request-focus-on ( child gadget -- )
351 M: gadget request-focus-on parent>> request-focus-on ;
353 M: f request-focus-on 2drop ;
355 : request-focus ( gadget -- )
356 [ focusable-child ] keep request-focus-on ;
358 : focus-path ( world -- seq )