1 ! Copyright (C) 2006, 2011 Slava Pestov
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays assocs calendar colors.constants
4 combinators combinators.short-circuit documents
5 documents.elements fry grouping kernel locals make math
6 math.functions math.order math.ranges math.rectangles
7 math.vectors models models.arrow namespaces opengl sequences
8 sorting splitting timers ui.baseline-alignment ui.clipboards
9 ui.commands ui.gadgets ui.gadgets.borders strings
10 ui.gadgets.line-support ui.gadgets.menus ui.gadgets.scrollers
11 ui.theme ui.gestures ui.pens.solid ui.render ui.text
13 EXCLUDE: fonts => selection ;
14 IN: ui.gadgets.editors
16 TUPLE: editor < line-gadget
19 focused? blink blink-timer ;
23 : <loc> ( -- loc ) { 0 0 } <model> ;
25 : init-editor-locs ( editor -- editor )
29 : editor-theme ( editor -- editor )
30 COLOR: red >>caret-color
31 monospace-font >>font ; inline
35 : new-editor ( class -- editor )
41 : <editor> ( -- editor )
46 : activate-editor-model ( editor model -- )
48 [ nip activate-model ]
49 [ swap model>> add-loc ] 2tri ;
51 : deactivate-editor-model ( editor model -- )
53 [ nip deactivate-model ]
54 [ swap model>> remove-loc ] 2tri ;
56 : blink-caret ( editor -- )
57 [ not ] change-blink relayout-1 ;
59 SYMBOL: blink-interval
61 750 milliseconds blink-interval set-global
63 : stop-blinking ( editor -- )
64 blink-timer>> [ stop-timer ] when* ;
66 : start-blinking ( editor -- )
68 blink-timer>> [ restart-timer ] when* ;
70 : restart-blinking ( editor -- )
80 [ dup caret>> activate-editor-model ]
81 [ dup mark>> activate-editor-model ]
84 '[ _ blink-caret ] blink-interval get dup <timer>
89 [ [ stop-blinking ] [ f >>blink-timer drop ] bi ]
90 [ dup caret>> deactivate-editor-model ]
91 [ dup mark>> deactivate-editor-model ] tri ;
93 : editor-caret ( editor -- loc ) caret>> value>> ;
95 : editor-mark ( editor -- loc ) mark>> value>> ;
97 : set-caret ( loc editor -- )
98 [ model>> validate-loc ] [ caret>> ] bi set-model ;
100 : change-caret ( editor quot: ( loc document -- newloc ) -- )
101 [ [ [ editor-caret ] [ model>> ] bi ] dip call ] [ drop ] 2bi
104 : mark>caret ( editor -- )
105 [ editor-caret ] [ mark>> ] bi set-model ;
107 : change-caret&mark ( editor quot: ( loc document -- newloc ) -- )
108 [ change-caret ] [ drop mark>caret ] 2bi ; inline
110 : editor-line ( n editor -- str ) control-value nth ;
112 :: point>loc ( point editor -- loc )
113 point second editor y>line {
114 { [ dup 0 < ] [ drop { 0 0 } ] }
115 { [ dup editor model>> last-line# > ] [ drop editor model>> doc-end ] }
125 : clicked-loc ( editor -- loc )
126 [ hand-rel ] keep point>loc ;
128 : click-loc ( editor model -- )
129 [ clicked-loc ] dip set-model ;
131 : focus-editor ( editor -- )
132 [ start-blinking ] [ t >>focused? relayout-1 ] bi ;
134 : unfocus-editor ( editor -- )
135 [ stop-blinking ] [ f >>focused? relayout-1 ] bi ;
137 : loc>x ( loc editor -- x )
138 [ first2 swap ] dip [ editor-line ] [ font>> ] bi swap offset>x round ;
140 : loc>point ( loc editor -- loc )
141 [ loc>x ] [ [ first ] dip line>y ceiling ] 2bi 2array ;
143 : caret-loc ( editor -- loc )
144 [ editor-caret ] keep loc>point ;
146 : caret-dim ( editor -- dim )
147 [ 0 ] dip line-height 2array ;
149 : scroll>caret ( editor -- )
150 dup graft-state>> second [
152 [ caret-loc ] [ caret-dim { 2 1 } v+ ] bi <rect>
158 : draw-caret? ( editor -- ? )
159 { [ focused?>> ] [ blink>> ] } 1&& ;
161 : draw-caret ( editor -- )
163 [ caret-color>> gl-color ]
165 [ caret-loc ] [ caret-dim ] bi
170 : selection-start/end ( editor -- start end )
171 [ editor-mark ] [ editor-caret ] bi sort-pair ;
173 SYMBOL: selected-lines
175 TUPLE: selected-line start end first? last? ;
177 : compute-selection ( editor -- assoc )
178 dup gadget-selection? [
179 [ selection-start/end [ [ first ] bi@ [a,b] ] [ ] 2bi ]
181 '[ [ _ _ ] [ _ start/end-on-line ] bi 2array ] H{ } map>assoc
184 :: draw-selection ( line pair editor -- )
185 pair [ editor font>> line offset>x ] map :> pair
186 editor selection-color>> gl-color
188 pair second pair first - round 1 max editor line-height 2array
191 : draw-unselected-line ( line editor -- )
192 font>> swap draw-text ;
194 : draw-selected-line ( line pair editor -- )
196 [ nip draw-unselected-line ] [ draw-selection ] 3bi
200 [ [ first2 ] [ selection-color>> ] bi* <selection> ]
201 [ draw-unselected-line ] bi
207 M: editor draw-line ( line index editor -- )
208 [ selected-lines get at ] dip over
209 [ draw-selected-line ] [ nip draw-unselected-line ] if ;
211 M: editor draw-gadget*
212 dup compute-selection selected-lines [
213 [ draw-lines ] [ draw-caret ] bi
218 : row,col-dim ( font r c -- dim )
219 CHAR: x <string> swap
223 : min-dim ( font editor -- dim )
224 [ min-rows>> [ 0 ] unless* ]
225 [ min-cols>> [ 0 ] unless* ] bi
228 : max-dim ( font editor -- dim )
229 ! hopefully no one goes over 5000
230 [ max-rows>> [ 5000 ] unless* ]
231 [ max-cols>> [ 5000 ] unless* ] bi
234 : txt-dim ( font editor -- dim )
235 control-value text-dim ;
239 : editor-constrained-dim ( editor -- dim )
244 2tri vmax vmin { 1 0 } v+ ;
247 ! Add some space for the caret.
248 [ font>> ] [ control-value ] bi text-dim { 1 0 } v+ ;
250 M: editor baseline font>> font-metrics ascent>> ;
252 M: editor cap-height font>> font-metrics cap-height>> ;
256 : contents-changed ( model editor -- )
257 [ [ nip caret>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
258 [ [ nip mark>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
259 [ nip relayout ] 2tri ;
261 : caret/mark-changed ( editor -- )
262 [ restart-blinking ] keep scroll>caret ;
266 M: editor model-changed
268 { [ 2dup model>> eq? ] [ contents-changed ] }
269 { [ 2dup caret>> eq? ] [ nip caret/mark-changed ] }
270 { [ 2dup mark>> eq? ] [ nip caret/mark-changed ] }
273 M: editor gadget-selection?
274 selection-start/end = not ;
276 M: editor gadget-selection
277 [ selection-start/end ] [ model>> ] bi doc-range ;
279 : remove-selection ( editor -- )
280 [ selection-start/end ] [ model>> ] bi remove-doc-range ;
282 M: editor user-input*
283 [ selection-start/end ] [ model>> ] bi set-doc-range t ;
285 : editor-string ( editor -- string )
288 : set-editor-string ( string editor -- )
289 model>> set-doc-string ;
291 M: editor gadget-text* editor-string % ;
293 : extend-selection ( editor -- )
296 [ dup caret>> click-loc ] tri ;
298 : mouse-elt ( -- element )
302 } at one-line-elt or ;
304 : drag-direction? ( loc editor -- ? )
305 editor-mark before? ;
307 : drag-selection-caret ( loc editor element -- loc )
309 [ drag-direction? ] [ model>> ] 2bi
310 ] dip prev/next-elt ? ;
312 : drag-selection-mark ( loc editor element -- loc )
314 [ drag-direction? not ]
317 ] dip prev/next-elt ? ;
319 : drag-caret&mark ( editor -- caret mark )
320 [ clicked-loc ] [ mouse-elt ] bi
321 [ drag-selection-caret ]
322 [ drag-selection-mark ] 3bi ;
324 : drag-selection ( editor -- )
327 [ caret>> set-model ] tri ;
329 : editor-cut ( editor clipboard -- )
330 [ gadget-copy ] [ drop remove-selection ] 2bi ;
332 : delete/backspace ( editor quot -- )
333 over gadget-selection? [
334 drop remove-selection
336 [ [ [ editor-caret ] [ model>> ] bi ] dip call ]
341 : editor-delete ( editor elt -- )
342 '[ dupd _ next-elt ] delete/backspace ;
344 : editor-backspace ( editor elt -- )
345 '[ over [ _ prev-elt ] dip ] delete/backspace ;
347 : editor-select-prev ( editor elt -- )
348 '[ _ prev-elt ] change-caret ;
350 : editor-prev ( editor elt -- )
351 [ editor-select-prev ] [ drop mark>caret ] 2bi ;
353 : editor-select-next ( editor elt -- )
354 '[ _ next-elt ] change-caret ;
356 : editor-next ( editor elt -- )
357 dupd editor-select-next mark>caret ;
359 : editor-select ( from to editor -- )
360 [ mark>> set-model ] [ caret>> set-model ] bi-curry bi* ;
362 : select-elt ( editor elt -- )
363 [ [ [ editor-caret ] [ model>> ] bi ] dip prev/next-elt ] [ drop ] 2bi
366 : start-of-document ( editor -- ) doc-elt editor-prev ;
368 : end-of-document ( editor -- ) doc-elt editor-next ;
370 : position-caret ( editor -- )
371 mouse-elt dup one-char-elt =
372 [ drop dup extend-selection dup mark>> click-loc ]
375 : delete-previous-character ( editor -- )
376 char-elt editor-backspace ;
378 : delete-next-character ( editor -- )
379 char-elt editor-delete ;
381 : delete-previous-word ( editor -- )
382 word-elt editor-backspace ;
384 : delete-next-word ( editor -- )
385 word-elt editor-delete ;
387 : delete-to-start-of-line ( editor -- )
388 one-line-elt editor-backspace ;
390 : delete-to-end-of-line ( editor -- )
391 one-line-elt editor-delete ;
393 : delete-to-start-of-document ( editor -- )
394 doc-elt editor-delete ;
396 : delete-to-end-of-document ( editor -- )
397 doc-elt editor-delete ;
399 : com-undo ( editor -- ) model>> undo ;
401 : com-redo ( editor -- ) model>> redo ;
404 { undo-action com-undo }
405 { redo-action com-redo }
406 { T{ key-down f f "DELETE" } delete-next-character }
407 { T{ key-down f f "BACKSPACE" } delete-previous-character }
408 { T{ key-down f { S+ } "BACKSPACE" } delete-previous-character }
409 { T{ key-down f { C+ } "DELETE" } delete-next-word }
410 { T{ key-down f { C+ } "BACKSPACE" } delete-previous-word }
411 { T{ key-down f { A+ } "DELETE" } delete-to-end-of-line }
412 { T{ key-down f { A+ } "BACKSPACE" } delete-to-start-of-line }
415 : com-paste ( editor -- ) clipboard get paste-clipboard ;
417 : paste-selection ( editor -- ) selection get paste-clipboard ;
419 : com-cut ( editor -- ) clipboard get editor-cut ;
421 editor "clipboard" f {
422 { cut-action com-cut }
423 { copy-action com-copy }
424 { paste-action com-paste }
425 { T{ button-up } com-copy-selection }
426 { T{ button-up f f 2 } paste-selection }
429 : previous-character ( editor -- )
430 dup gadget-selection? [
431 dup selection-start/end drop
432 over set-caret mark>caret
437 : next-character ( editor -- )
438 dup gadget-selection? [
439 dup selection-start/end nip
440 over set-caret mark>caret
445 : previous-word ( editor -- ) word-elt editor-prev ;
447 : next-word ( editor -- ) word-elt editor-next ;
449 : start-of-line ( editor -- ) one-line-elt editor-prev ;
451 : end-of-line ( editor -- ) one-line-elt editor-next ;
453 editor "caret-motion" f {
454 { T{ button-down } position-caret }
455 { T{ key-down f f "LEFT" } previous-character }
456 { T{ key-down f f "RIGHT" } next-character }
457 { T{ key-down f { C+ } "LEFT" } previous-word }
458 { T{ key-down f { C+ } "RIGHT" } next-word }
459 { T{ key-down f f "HOME" } start-of-line }
460 { T{ key-down f f "END" } end-of-line }
461 { T{ key-down f { C+ } "HOME" } start-of-document }
462 { T{ key-down f { C+ } "END" } end-of-document }
465 : clear-editor ( editor -- )
468 : select-all ( editor -- ) doc-elt select-elt ;
470 : select-line ( editor -- ) one-line-elt select-elt ;
472 : select-word ( editor -- ) one-word-elt select-elt ;
474 : selected-token ( editor -- string )
475 dup gadget-selection?
476 [ dup select-word ] unless
479 : select-previous-character ( editor -- )
480 char-elt editor-select-prev ;
482 : select-next-character ( editor -- )
483 char-elt editor-select-next ;
485 : select-previous-word ( editor -- )
486 word-elt editor-select-prev ;
488 : select-next-word ( editor -- )
489 word-elt editor-select-next ;
491 : select-start-of-line ( editor -- )
492 one-line-elt editor-select-prev ;
494 : select-end-of-line ( editor -- )
495 one-line-elt editor-select-next ;
497 : select-start-of-document ( editor -- )
498 doc-elt editor-select-prev ;
500 : select-end-of-document ( editor -- )
501 doc-elt editor-select-next ;
503 editor "selection" f {
504 { T{ button-down f { S+ } 1 } extend-selection }
505 { T{ button-up f { S+ } 1 } com-copy-selection }
506 { T{ drag { # 1 } } drag-selection }
507 { gain-focus focus-editor }
508 { lose-focus unfocus-editor }
509 { delete-action remove-selection }
510 { select-all-action select-all }
511 { T{ key-down f { C+ } "l" } select-line }
512 { T{ key-down f { S+ } "LEFT" } select-previous-character }
513 { T{ key-down f { S+ } "RIGHT" } select-next-character }
514 { T{ key-down f { S+ C+ } "LEFT" } select-previous-word }
515 { T{ key-down f { S+ C+ } "RIGHT" } select-next-word }
516 { T{ key-down f { S+ } "HOME" } select-start-of-line }
517 { T{ key-down f { S+ } "END" } select-end-of-line }
518 { T{ key-down f { S+ C+ } "HOME" } select-start-of-document }
519 { T{ key-down f { S+ C+ } "END" } select-end-of-document }
522 : editor-menu ( editor -- )
530 } show-commands-menu ;
533 ! { T{ button-down f f 2 } paste-selection }
534 { T{ button-down f f 3 } editor-menu }
538 TUPLE: multiline-editor < editor ;
540 : <multiline-editor> ( -- editor )
541 multiline-editor new-editor ;
543 : previous-line ( editor -- ) line-elt editor-prev ;
545 : next-line ( editor -- ) line-elt editor-next ;
549 : page-elt ( editor -- editor element ) dup visible-lines 1 - <page-elt> ;
553 : previous-page ( editor -- ) page-elt editor-prev ;
555 : next-page ( editor -- ) page-elt editor-next ;
557 : select-previous-line ( editor -- ) line-elt editor-select-prev ;
559 : select-next-line ( editor -- ) line-elt editor-select-next ;
561 : select-previous-page ( editor -- ) page-elt editor-select-prev ;
563 : select-next-page ( editor -- ) page-elt editor-select-next ;
565 : insert-newline ( editor -- )
566 "\n" swap user-input* drop ;
568 : change-selection ( editor quot -- )
569 '[ gadget-selection @ ] [ user-input* drop ] bi ; inline
573 : join-lines ( string -- string' )
575 [ rest-slice [ [ blank? ] trim-head-slice ] map! drop ]
576 [ but-last-slice [ [ blank? ] trim-tail-slice ] map! drop ]
580 : last-line? ( document line -- ? )
581 [ last-line# ] dip = ;
583 : prev-line-and-this ( document line -- start end )
584 swap [ drop 1 - 0 2array ] [ line-end ] 2bi ;
586 : join-with-prev ( document line -- )
587 [ prev-line-and-this ] [ drop ] 2bi
588 [ join-lines ] change-doc-range ;
590 : this-line-and-next ( document line -- start end )
591 swap [ drop 0 2array ] [ [ 1 + ] dip line-end ] 2bi ;
593 : join-with-next ( document line -- )
594 [ this-line-and-next ] [ drop ] 2bi
595 [ join-lines ] change-doc-range ;
599 : com-join-lines ( editor -- )
600 dup gadget-selection?
601 [ [ join-lines ] change-selection ] [
602 [ model>> ] [ editor-caret first ] bi {
603 { [ over last-line# 0 = ] [ 2drop ] }
604 { [ 2dup last-line? ] [ join-with-prev ] }
609 multiline-editor "multiline" f {
610 { T{ key-down f f "UP" } previous-line }
611 { T{ key-down f f "DOWN" } next-line }
612 { T{ key-down f { S+ } "UP" } select-previous-line }
613 { T{ key-down f { S+ } "DOWN" } select-next-line }
614 { T{ key-down f f "PAGE_UP" } previous-page }
615 { T{ key-down f f "PAGE_DOWN" } next-page }
616 { T{ key-down f { S+ } "PAGE_UP" } select-previous-page }
617 { T{ key-down f { S+ } "PAGE_DOWN" } select-next-page }
618 { T{ key-down f f "RET" } insert-newline }
619 { T{ key-down f { S+ } "RET" } insert-newline }
620 { T{ key-down f f "ENTER" } insert-newline }
621 { T{ key-down f { C+ } "j" } com-join-lines }
624 TUPLE: source-editor < multiline-editor ;
626 : <source-editor> ( -- editor )
627 source-editor new-editor ;
630 : <element-model> ( editor element -- model )
631 [ [ caret>> ] [ model>> ] bi ] dip
632 '[ _ _ elt-string ] <arrow> ;
634 ! Fields wrap an editor
635 TUPLE: field < border editor min-cols max-cols ;
639 : field-theme ( gadget -- gadget )
642 field-border-color <solid> >>boundary ; inline
644 : <field-border> ( gadget -- border )
645 border new-border field-theme ;
649 : new-field ( class -- gadget )
650 [ <editor> ] dip new-border
651 dup gadget-child >>editor
654 ! For line-gadget-width
655 M: field font>> editor>> font>> ;
659 [ editor>> pref-dim ]
660 [ [ line-gadget-width ] [ drop second ] 2bi 2array ]
661 tri border-pref-dim ;
663 TUPLE: model-field < field field-model ;
665 : <model-field> ( model -- gadget )
666 model-field new-field
669 M: model-field graft*
670 [ [ field-model>> value>> ] [ editor>> ] bi set-editor-string ]
671 [ dup editor>> model>> add-connection ]
674 M: model-field ungraft*
675 dup editor>> model>> remove-connection ;
677 M: model-field model-changed
678 nip [ editor>> editor-string ] [ field-model>> ] bi set-model ;
680 TUPLE: action-editor < editor default-text ;
682 : <action-editor> ( -- editor )
683 action-editor new-editor ;
687 : draw-default-text? ( editor -- ? )
688 { [ default-text>> ] [ model>> doc-string empty? ] } 1&& ;
690 : draw-default-text ( editor -- )
691 [ font>> clone line-color >>foreground ]
692 [ default-text>> ] bi draw-text ;
696 M: action-editor draw-gadget*
697 dup draw-default-text? [
698 [ draw-default-text ] [ draw-caret ] bi
703 TUPLE: action-field < field quot ;
705 : <action-field> ( quot: ( string -- ) -- gadget )
706 action-field [ <action-editor> ] dip new-border
707 dup gadget-child >>editor
711 M: action-field default-text>> editor>> default-text>> ;
713 M: action-field default-text<< editor>> default-text<< ;
715 : invoke-action-field ( field -- )
716 [ editor>> editor-string ]
717 [ editor>> clear-editor ]
719 tri call( string -- ) ;
722 { T{ key-down f f "RET" } [ invoke-action-field ] }