1 ! Copyright (C) 2006, 2008 Slava Pestov
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays documents io kernel math models
4 namespaces make opengl opengl.gl sequences strings io.styles
5 math.vectors sorting colors combinators assocs math.order
6 ui.clipboards ui.commands ui.gadgets ui.gadgets.borders
7 ui.gadgets.buttons ui.gadgets.labels ui.gadgets.scrollers
8 ui.gadgets.theme ui.gadgets.wrappers ui.render ui.gestures
10 IN: ui.gadgets.editors
12 TUPLE: editor < gadget
13 font color caret-color selection-color
17 : <loc> ( -- loc ) { 0 0 } <model> ;
19 : init-editor-locs ( editor -- editor )
23 : editor-theme ( editor -- editor )
26 selection-color >>selection-color
27 monospace-font >>font ; inline
29 : new-editor ( class -- editor )
35 : <editor> ( -- editor )
38 : activate-editor-model ( editor model -- )
41 swap model>> add-loc ;
43 : deactivate-editor-model ( editor model -- )
44 2dup remove-connection
46 swap model>> remove-loc ;
50 dup caret>> activate-editor-model
51 dup mark>> activate-editor-model ;
55 dup caret>> deactivate-editor-model
56 dup mark>> deactivate-editor-model ;
58 : editor-caret* ( editor -- loc ) caret>> value>> ;
60 : editor-mark* ( editor -- loc ) mark>> value>> ;
62 : set-caret ( loc editor -- )
63 [ model>> validate-loc ] keep
66 : change-caret ( editor quot -- )
67 over >r >r dup editor-caret* swap model>> r> call r>
70 : mark>caret ( editor -- )
71 dup editor-caret* swap mark>> set-model ;
73 : change-caret&mark ( editor quot -- )
74 over >r change-caret r> mark>caret ; inline
76 : editor-line ( n editor -- str ) control-value nth ;
78 : editor-font* ( editor -- font ) font>> open-font ;
80 : line-height ( editor -- n )
81 editor-font* "" string-height ;
83 : y>line ( y editor -- line# )
84 [ line-height / >fixnum ] keep model>> validate-line ;
86 : point>loc ( point editor -- loc )
88 >r first2 r> tuck y>line dup ,
89 >r dup editor-font* r>
90 rot editor-line x>offset ,
93 : clicked-loc ( editor -- loc )
94 [ hand-rel ] keep point>loc ;
96 : click-loc ( editor model -- )
97 >r clicked-loc r> set-model ;
99 : focus-editor ( editor -- ) t >>focused? relayout-1 ;
101 : unfocus-editor ( editor -- ) f >>focused? relayout-1 ;
103 : (offset>x) ( font col# str -- x )
104 swap head-slice string-width ;
106 : offset>x ( col# line# editor -- x )
107 [ editor-line ] keep editor-font* -rot (offset>x) ;
109 : loc>x ( loc editor -- x ) >r first2 swap r> offset>x ;
111 : line>y ( lines# editor -- y )
114 : caret-loc ( editor -- loc )
115 [ editor-caret* ] keep 2dup loc>x
116 rot first rot line>y 2array ;
118 : caret-dim ( editor -- dim )
119 line-height 0 swap 2array ;
121 : scroll>caret ( editor -- )
122 dup graft-state>> second [
123 dup caret-loc over caret-dim { 1 0 } v+ <rect>
128 editor get focused?>> [
130 dup caret-color>> set-color
131 dup caret-loc origin get v+
132 swap caret-dim over v+
133 [ { 0.5 -0.5 } v+ ] bi@ gl-line
136 : line-translation ( n -- loc )
137 editor get line-height * 0.0 swap 2array ;
139 : translate-lines ( n -- )
140 line-translation gl-translate ;
142 : draw-line ( editor str -- )
143 >r font>> r> { 0 0 } draw-string ;
145 : first-visible-line ( editor -- n )
146 clip get rect-loc second origin get second -
149 : last-visible-line ( editor -- n )
150 clip get rect-extent nip second origin get second -
153 : with-editor ( editor quot -- )
156 dup first-visible-line \ first-visible-line set
157 dup last-visible-line \ last-visible-line set
158 dup model>> document set
161 ] with-scope ; inline
163 : visible-lines ( editor -- seq )
164 \ first-visible-line get
165 \ last-visible-line get
166 rot control-value <slice> ;
168 : with-editor-translation ( n quot -- )
169 >r line-translation origin get v+ r> with-translation ;
173 \ first-visible-line get [
174 editor get dup color>> set-color
176 [ draw-line 1 translate-lines ] with each
177 ] with-editor-translation ;
179 : selection-start/end ( editor -- start end )
180 dup editor-mark* swap editor-caret* sort-pair ;
182 : (draw-selection) ( x1 x2 -- )
184 0.0 swap editor get line-height glRectd ;
186 : draw-selected-line ( start end n -- )
187 [ start/end-on-line ] keep tuck
188 >r >r editor get offset>x r> r>
192 : draw-selection ( -- )
193 editor get selection-color>> set-color
194 editor get selection-start/end
197 >r 2dup r> draw-selected-line
200 ] with-editor-translation ;
202 M: editor draw-gadget*
203 [ draw-selection draw-lines draw-caret ] with-editor ;
206 dup editor-font* swap control-value text-dim ;
208 : contents-changed ( model editor -- )
210 over caret>> [ over validate-loc ] (change-model)
211 over mark>> [ over validate-loc ] (change-model)
214 : caret/mark-changed ( model editor -- )
215 nip [ relayout-1 ] [ scroll>caret ] bi ;
217 M: editor model-changed
219 { [ 2dup model>> eq? ] [ contents-changed ] }
220 { [ 2dup caret>> eq? ] [ caret/mark-changed ] }
221 { [ 2dup mark>> eq? ] [ caret/mark-changed ] }
224 M: editor gadget-selection?
225 selection-start/end = not ;
227 M: editor gadget-selection
228 [ selection-start/end ] keep model>> doc-range ;
230 : remove-selection ( editor -- )
231 [ selection-start/end ] keep model>> remove-doc-range ;
233 M: editor user-input*
234 [ selection-start/end ] keep model>> set-doc-range t ;
236 : editor-string ( editor -- string )
239 : set-editor-string ( string editor -- )
240 model>> set-doc-string ;
242 M: editor gadget-text* editor-string % ;
244 : extend-selection ( editor -- )
245 dup request-focus dup caret>> click-loc ;
247 : mouse-elt ( -- element )
249 { 1 T{ one-char-elt } }
250 { 2 T{ one-word-elt } }
251 } at T{ one-line-elt } or ;
253 : drag-direction? ( loc editor -- ? )
254 editor-mark* before? ;
256 : drag-selection-caret ( loc editor element -- loc )
257 >r [ drag-direction? ] 2keep
261 : drag-selection-mark ( loc editor element -- loc )
262 >r [ drag-direction? not ] 2keep
263 nip dup editor-mark* swap model>>
266 : drag-caret&mark ( editor -- caret mark )
267 dup clicked-loc swap mouse-elt
268 [ drag-selection-caret ] 3keep
269 drag-selection-mark ;
271 : drag-selection ( editor -- )
273 pick mark>> set-model
274 swap caret>> set-model ;
276 : editor-cut ( editor clipboard -- )
277 dupd gadget-copy remove-selection ;
279 : delete/backspace ( elt editor quot -- )
280 over gadget-selection? [
281 drop nip remove-selection
283 over >r >r dup editor-caret* swap model>>
284 r> call r> model>> remove-doc-range
287 : editor-delete ( editor elt -- )
288 swap [ over >r rot next-elt r> swap ] delete/backspace ;
290 : editor-backspace ( editor elt -- )
291 swap [ over >r rot prev-elt r> ] delete/backspace ;
293 : editor-select-prev ( editor elt -- )
294 swap [ rot prev-elt ] change-caret ;
296 : editor-prev ( editor elt -- )
297 dupd editor-select-prev mark>caret ;
299 : editor-select-next ( editor elt -- )
300 swap [ rot next-elt ] change-caret ;
302 : editor-next ( editor elt -- )
303 dupd editor-select-next mark>caret ;
305 : editor-select ( from to editor -- )
306 tuck caret>> set-model mark>> set-model ;
308 : select-elt ( editor elt -- )
310 >r dup editor-caret* swap model>> r> prev/next-elt
313 : start-of-document ( editor -- ) T{ doc-elt } editor-prev ;
315 : end-of-document ( editor -- ) T{ doc-elt } editor-next ;
317 : position-caret ( editor -- )
318 mouse-elt dup T{ one-char-elt } =
319 [ drop dup extend-selection dup mark>> click-loc ]
322 : insert-newline ( editor -- ) "\n" swap user-input ;
324 : delete-next-character ( editor -- )
325 T{ char-elt } editor-delete ;
327 : delete-previous-character ( editor -- )
328 T{ char-elt } editor-backspace ;
330 : delete-previous-word ( editor -- )
331 T{ word-elt } editor-delete ;
333 : delete-next-word ( editor -- )
334 T{ word-elt } editor-backspace ;
336 : delete-to-start-of-line ( editor -- )
337 T{ one-line-elt } editor-delete ;
339 : delete-to-end-of-line ( editor -- )
340 T{ one-line-elt } editor-backspace ;
343 { T{ key-down f f "DELETE" } delete-next-character }
344 { T{ key-down f { S+ } "DELETE" } delete-next-character }
345 { T{ key-down f f "BACKSPACE" } delete-previous-character }
346 { T{ key-down f { S+ } "BACKSPACE" } delete-previous-character }
347 { T{ key-down f { C+ } "DELETE" } delete-previous-word }
348 { T{ key-down f { C+ } "BACKSPACE" } delete-next-word }
349 { T{ key-down f { A+ } "DELETE" } delete-to-start-of-line }
350 { T{ key-down f { A+ } "BACKSPACE" } delete-to-end-of-line }
353 : paste ( editor -- ) clipboard get paste-clipboard ;
355 : paste-selection ( editor -- ) selection get paste-clipboard ;
357 : cut ( editor -- ) clipboard get editor-cut ;
359 editor "clipboard" f {
360 { T{ paste-action } paste }
361 { T{ button-up f f 2 } paste-selection }
362 { T{ copy-action } com-copy }
363 { T{ button-up } com-copy-selection }
364 { T{ cut-action } cut }
367 : previous-character ( editor -- )
368 dup gadget-selection? [
369 dup selection-start/end drop
370 over set-caret mark>caret
372 T{ char-elt } editor-prev
375 : next-character ( editor -- )
376 dup gadget-selection? [
377 dup selection-start/end nip
378 over set-caret mark>caret
380 T{ char-elt } editor-next
383 : previous-line ( editor -- ) T{ line-elt } editor-prev ;
385 : next-line ( editor -- ) T{ line-elt } editor-next ;
387 : previous-word ( editor -- ) T{ word-elt } editor-prev ;
389 : next-word ( editor -- ) T{ word-elt } editor-next ;
391 : start-of-line ( editor -- ) T{ one-line-elt } editor-prev ;
393 : end-of-line ( editor -- ) T{ one-line-elt } editor-next ;
395 editor "caret-motion" f {
396 { T{ button-down } position-caret }
397 { T{ key-down f f "LEFT" } previous-character }
398 { T{ key-down f f "RIGHT" } next-character }
399 { T{ key-down f f "UP" } previous-line }
400 { T{ key-down f f "DOWN" } next-line }
401 { T{ key-down f { C+ } "LEFT" } previous-word }
402 { T{ key-down f { C+ } "RIGHT" } next-word }
403 { T{ key-down f f "HOME" } start-of-line }
404 { T{ key-down f f "END" } end-of-line }
405 { T{ key-down f { C+ } "HOME" } start-of-document }
406 { T{ key-down f { C+ } "END" } end-of-document }
409 : select-all ( editor -- ) T{ doc-elt } select-elt ;
411 : select-line ( editor -- ) T{ one-line-elt } select-elt ;
413 : select-word ( editor -- ) T{ one-word-elt } select-elt ;
415 : selected-word ( editor -- string )
416 dup gadget-selection?
417 [ dup select-word ] unless
420 : select-previous-character ( editor -- )
421 T{ char-elt } editor-select-prev ;
423 : select-next-character ( editor -- )
424 T{ char-elt } editor-select-next ;
426 : select-previous-line ( editor -- )
427 T{ line-elt } editor-select-prev ;
429 : select-next-line ( editor -- )
430 T{ line-elt } editor-select-next ;
432 : select-previous-word ( editor -- )
433 T{ word-elt } editor-select-prev ;
435 : select-next-word ( editor -- )
436 T{ word-elt } editor-select-next ;
438 : select-start-of-line ( editor -- )
439 T{ one-line-elt } editor-select-prev ;
441 : select-end-of-line ( editor -- )
442 T{ one-line-elt } editor-select-next ;
444 : select-start-of-document ( editor -- )
445 T{ doc-elt } editor-select-prev ;
447 : select-end-of-document ( editor -- )
448 T{ doc-elt } editor-select-next ;
450 editor "selection" f {
451 { T{ button-down f { S+ } } extend-selection }
452 { T{ drag } drag-selection }
453 { T{ gain-focus } focus-editor }
454 { T{ lose-focus } unfocus-editor }
455 { T{ delete-action } remove-selection }
456 { T{ select-all-action } select-all }
457 { T{ key-down f { C+ } "l" } select-line }
458 { T{ key-down f { S+ } "LEFT" } select-previous-character }
459 { T{ key-down f { S+ } "RIGHT" } select-next-character }
460 { T{ key-down f { S+ } "UP" } select-previous-line }
461 { T{ key-down f { S+ } "DOWN" } select-next-line }
462 { T{ key-down f { S+ C+ } "LEFT" } select-previous-word }
463 { T{ key-down f { S+ C+ } "RIGHT" } select-next-word }
464 { T{ key-down f { S+ } "HOME" } select-start-of-line }
465 { T{ key-down f { S+ } "END" } select-end-of-line }
466 { T{ key-down f { S+ C+ } "HOME" } select-start-of-document }
467 { T{ key-down f { S+ C+ } "END" } select-end-of-document }
471 TUPLE: multiline-editor < editor ;
473 : <multiline-editor> ( -- editor )
474 multiline-editor new-editor ;
476 multiline-editor "general" f {
477 { T{ key-down f f "RET" } insert-newline }
478 { T{ key-down f { S+ } "RET" } insert-newline }
479 { T{ key-down f f "ENTER" } insert-newline }
482 TUPLE: source-editor < multiline-editor ;
484 : <source-editor> ( -- editor )
485 source-editor new-editor ;
487 ! Fields wrap an editor and edit an external model
488 TUPLE: field < wrapper field-model editor ;
490 : field-theme ( gadget -- gadget )
491 gray <solid> >>boundary ; inline
493 : <field-border> ( gadget -- border )
498 : <field> ( model -- gadget )
499 <editor> dup <field-border> field new-wrapper
504 [ [ field-model>> value>> ] [ editor>> ] bi set-editor-string ]
505 [ dup editor>> model>> add-connection ]
509 dup editor>> model>> remove-connection ;
511 M: field model-changed
512 nip [ editor>> editor-string ] [ field-model>> ] bi set-model ;