1 ! Copyright (C) 2006, 2007 Slava Pestov
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: arrays documents ui.clipboards ui.commands ui.gadgets
4 ui.gadgets.borders ui.gadgets.buttons ui.gadgets.labels
5 ui.gadgets.scrollers ui.gadgets.theme ui.render ui.gestures io
6 kernel math models namespaces opengl opengl.gl sequences strings
7 io.styles math.vectors sorting colors combinators assocs
13 font color caret-color selection-color
17 : <loc> ( -- loc ) { 0 0 } <model> ;
19 : init-editor-locs ( editor -- )
20 <loc> over set-editor-caret
21 <loc> swap set-editor-mark ;
23 : editor-theme ( editor -- )
24 black over set-editor-color
25 red over set-editor-caret-color
26 selection-color over set-editor-selection-color
27 monospace-font swap set-editor-font ;
29 : <editor> ( -- editor )
30 <document> <gadget> editor construct-control
31 dup dup set-editor-self
35 : field-theme ( gadget -- )
36 gray <solid> swap set-gadget-boundary ;
38 : construct-editor ( object class -- tuple )
39 >r { set-gadget-delegate } r> construct
40 dup dup set-editor-self ; inline
42 : activate-editor-model ( editor model -- )
45 swap gadget-model add-loc ;
47 : deactivate-editor-model ( editor model -- )
48 2dup remove-connection
50 swap gadget-model remove-loc ;
54 dup editor-caret activate-editor-model
55 dup editor-mark activate-editor-model ;
59 dup editor-caret deactivate-editor-model
60 dup editor-mark deactivate-editor-model ;
62 : editor-caret* ( editor -- loc ) editor-caret model-value ;
64 : editor-mark* ( editor -- loc ) editor-mark model-value ;
66 : set-caret ( loc editor -- )
67 [ gadget-model validate-loc ] keep
68 editor-caret set-model ;
70 : change-caret ( editor quot -- )
71 over >r >r dup editor-caret* swap gadget-model r> call r>
74 : mark>caret ( editor -- )
75 dup editor-caret* swap editor-mark set-model ;
77 : change-caret&mark ( editor quot -- )
78 over >r change-caret r> mark>caret ; inline
80 : editor-line ( n editor -- str ) control-value nth ;
82 : editor-font* ( editor -- font ) editor-font open-font ;
84 : line-height ( editor -- n )
85 editor-font* "" string-height ;
87 : y>line ( y editor -- line# )
88 [ line-height / >fixnum ] keep gadget-model validate-line ;
90 : point>loc ( point editor -- loc )
92 >r first2 r> tuck y>line dup ,
93 >r dup editor-font* r>
94 rot editor-line x>offset ,
97 : clicked-loc ( editor -- loc )
98 [ hand-rel ] keep point>loc ;
100 : click-loc ( editor model -- )
101 >r clicked-loc r> set-model ;
103 : focus-editor ( editor -- )
104 t over set-editor-focused? relayout-1 ;
106 : unfocus-editor ( editor -- )
107 f over set-editor-focused? relayout-1 ;
109 : (offset>x) ( font col# str -- x )
110 swap head-slice string-width ;
112 : offset>x ( col# line# editor -- x )
113 [ editor-line ] keep editor-font* -rot (offset>x) ;
115 : loc>x ( loc editor -- x ) >r first2 swap r> offset>x ;
117 : line>y ( lines# editor -- y )
120 : caret-loc ( editor -- loc )
121 [ editor-caret* ] keep 2dup loc>x
122 rot first rot line>y 2array ;
124 : caret-dim ( editor -- dim )
125 line-height 0 swap 2array ;
127 : scroll>caret ( editor -- )
128 dup gadget-graft-state second [
129 dup caret-loc over caret-dim { 1 0 } v+ <rect>
134 editor get editor-focused? [
136 dup editor-caret-color gl-color
137 dup caret-loc origin get v+
138 swap caret-dim over v+
139 [ { 0.5 -0.5 } v+ ] bi@ gl-line
142 : line-translation ( n -- loc )
143 editor get line-height * 0.0 swap 2array ;
145 : translate-lines ( n -- )
146 line-translation gl-translate ;
148 : draw-line ( editor str -- )
149 >r editor-font r> { 0 0 } draw-string ;
151 : first-visible-line ( editor -- n )
152 clip get rect-loc second origin get second -
155 : last-visible-line ( editor -- n )
156 clip get rect-extent nip second origin get second -
159 : with-editor ( editor quot -- )
162 dup first-visible-line \ first-visible-line set
163 dup last-visible-line \ last-visible-line set
164 dup gadget-model document set
167 ] with-scope ; inline
169 : visible-lines ( editor -- seq )
170 \ first-visible-line get
171 \ last-visible-line get
172 rot control-value <slice> ;
174 : with-editor-translation ( n quot -- )
175 >r line-translation origin get v+ r> with-translation ;
179 \ first-visible-line get [
180 editor get dup editor-color gl-color
182 [ draw-line 1 translate-lines ] with each
183 ] with-editor-translation ;
185 : selection-start/end ( editor -- start end )
186 dup editor-mark* swap editor-caret* sort-pair ;
188 : (draw-selection) ( x1 x2 -- )
190 0.0 swap editor get line-height glRectd ;
192 : draw-selected-line ( start end n -- )
193 [ start/end-on-line ] keep tuck
194 >r >r editor get offset>x r> r>
198 : draw-selection ( -- )
199 editor get editor-selection-color gl-color
200 editor get selection-start/end
203 >r 2dup r> draw-selected-line
206 ] with-editor-translation ;
208 M: editor draw-gadget*
209 [ draw-selection draw-lines draw-caret ] with-editor ;
212 dup editor-font* swap control-value text-dim ;
216 over editor-caret [ over validate-loc ] (change-model)
217 over editor-mark [ over validate-loc ] (change-model)
221 nip editor-self dup relayout-1 scroll>caret ;
223 M: editor model-changed
225 { [ 2dup gadget-model eq? ] [ contents-changed ] }
226 { [ 2dup editor-caret eq? ] [ caret/mark-changed ] }
227 { [ 2dup editor-mark eq? ] [ caret/mark-changed ] }
230 M: editor gadget-selection?
231 selection-start/end = not ;
233 M: editor gadget-selection
234 [ selection-start/end ] keep gadget-model doc-range ;
236 : remove-selection ( editor -- )
237 [ selection-start/end ] keep gadget-model remove-doc-range ;
239 M: editor user-input*
240 [ selection-start/end ] keep gadget-model set-doc-range t ;
242 : editor-string ( editor -- string )
243 gadget-model doc-string ;
245 : set-editor-string ( string editor -- )
246 gadget-model set-doc-string ;
248 M: editor gadget-text* editor-string % ;
250 : extend-selection ( editor -- )
251 dup request-focus dup editor-caret click-loc ;
253 : mouse-elt ( -- element )
255 { 1 T{ one-char-elt } }
256 { 2 T{ one-word-elt } }
257 } at T{ one-line-elt } or ;
259 : drag-direction? ( loc editor -- ? )
260 editor-mark* before? ;
262 : drag-selection-caret ( loc editor element -- loc )
263 >r [ drag-direction? ] 2keep
267 : drag-selection-mark ( loc editor element -- loc )
268 >r [ drag-direction? not ] 2keep
269 nip dup editor-mark* swap gadget-model
272 : drag-caret&mark ( editor -- caret mark )
273 dup clicked-loc swap mouse-elt
274 [ drag-selection-caret ] 3keep
275 drag-selection-mark ;
277 : drag-selection ( editor -- )
279 pick editor-mark set-model
280 swap editor-caret set-model ;
282 : editor-cut ( editor clipboard -- )
283 dupd gadget-copy remove-selection ;
285 : delete/backspace ( elt editor quot -- )
286 over gadget-selection? [
287 drop nip remove-selection
289 over >r >r dup editor-caret* swap gadget-model
290 r> call r> gadget-model remove-doc-range
293 : editor-delete ( editor elt -- )
294 swap [ over >r rot next-elt r> swap ] delete/backspace ;
296 : editor-backspace ( editor elt -- )
297 swap [ over >r rot prev-elt r> ] delete/backspace ;
299 : editor-select-prev ( editor elt -- )
300 swap [ rot prev-elt ] change-caret ;
302 : editor-prev ( editor elt -- )
303 dupd editor-select-prev mark>caret ;
305 : editor-select-next ( editor elt -- )
306 swap [ rot next-elt ] change-caret ;
308 : editor-next ( editor elt -- )
309 dupd editor-select-next mark>caret ;
311 : editor-select ( from to editor -- )
312 tuck editor-caret set-model editor-mark set-model ;
314 : select-elt ( editor elt -- )
316 >r dup editor-caret* swap gadget-model r> prev/next-elt
319 : start-of-document ( editor -- ) T{ doc-elt } editor-prev ;
321 : end-of-document ( editor -- ) T{ doc-elt } editor-next ;
323 : position-caret ( editor -- )
324 mouse-elt dup T{ one-char-elt } =
325 [ drop dup extend-selection dup editor-mark click-loc ]
328 : insert-newline "\n" swap user-input ;
330 : delete-next-character T{ char-elt } editor-delete ;
332 : delete-previous-character T{ char-elt } editor-backspace ;
334 : delete-previous-word T{ word-elt } editor-delete ;
336 : delete-next-word T{ word-elt } editor-backspace ;
338 : delete-to-start-of-line T{ one-line-elt } editor-delete ;
340 : delete-to-end-of-line 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 clipboard get paste-clipboard ;
355 : paste-selection selection get paste-clipboard ;
357 : cut 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 T{ line-elt } editor-prev ;
385 : next-line T{ line-elt } editor-next ;
387 : previous-word T{ word-elt } editor-prev ;
389 : next-word T{ word-elt } editor-next ;
391 : start-of-line T{ one-line-elt } editor-prev ;
393 : end-of-line 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 T{ doc-elt } select-elt ;
411 : select-line T{ one-line-elt } select-elt ;
413 : select-word T{ one-word-elt } select-elt ;
415 : selected-word ( editor -- string )
416 dup gadget-selection?
417 [ dup select-word ] unless
420 : select-previous-character T{ char-elt } editor-select-prev ;
422 : select-next-character T{ char-elt } editor-select-next ;
424 : select-previous-line T{ line-elt } editor-select-prev ;
426 : select-next-line T{ line-elt } editor-select-next ;
428 : select-previous-word T{ word-elt } editor-select-prev ;
430 : select-next-word T{ word-elt } editor-select-next ;
432 : select-start-of-line T{ one-line-elt } editor-select-prev ;
434 : select-end-of-line T{ one-line-elt } editor-select-next ;
436 : select-start-of-document T{ doc-elt } editor-select-prev ;
438 : select-end-of-document T{ doc-elt } editor-select-next ;
440 editor "selection" f {
441 { T{ button-down f { S+ } } extend-selection }
442 { T{ drag } drag-selection }
443 { T{ gain-focus } focus-editor }
444 { T{ lose-focus } unfocus-editor }
445 { T{ delete-action } remove-selection }
446 { T{ select-all-action } select-all }
447 { T{ key-down f { C+ } "l" } select-line }
448 { T{ key-down f { S+ } "LEFT" } select-previous-character }
449 { T{ key-down f { S+ } "RIGHT" } select-next-character }
450 { T{ key-down f { S+ } "UP" } select-previous-line }
451 { T{ key-down f { S+ } "DOWN" } select-next-line }
452 { T{ key-down f { S+ C+ } "LEFT" } select-previous-word }
453 { T{ key-down f { S+ C+ } "RIGHT" } select-next-word }
454 { T{ key-down f { S+ } "HOME" } select-start-of-line }
455 { T{ key-down f { S+ } "END" } select-end-of-line }
456 { T{ key-down f { S+ C+ } "HOME" } select-start-of-document }
457 { T{ key-down f { S+ C+ } "END" } select-end-of-document }
461 TUPLE: multiline-editor ;
463 : <multiline-editor> ( -- editor )
464 <editor> multiline-editor construct-editor ;
466 multiline-editor "general" f {
467 { T{ key-down f f "RET" } insert-newline }
468 { T{ key-down f { S+ } "RET" } insert-newline }
469 { T{ key-down f f "ENTER" } insert-newline }
472 TUPLE: source-editor ;
474 : <source-editor> ( -- editor )
475 <multiline-editor> source-editor construct-editor ;
477 ! Fields are like editors except they edit an external model
478 TUPLE: field model editor ;
480 : <field-border> ( gadget -- border )
482 { 1 0 } over set-border-fill
485 : <field> ( model -- gadget )
486 <editor> dup <field-border>
487 { set-field-model set-field-editor set-gadget-delegate }
491 dup field-model model-value
492 over field-editor set-editor-string
493 dup field-editor gadget-model add-connection ;
496 dup field-editor gadget-model remove-connection ;
498 M: field model-changed
500 dup field-editor editor-string
501 swap field-model set-model ;