1 ;;;; framework-gnome.scm --
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 2004 Jan Nieuwenhuizen <janneke@gnu.org>
7 ;;;; See output-gnome.scm for usage information.
10 (define-module (scm framework-gnome))
12 (use-modules (guile) (oop goops) (lily))
21 (define-public (output-framework outputter book scopes fields basename)
22 (gnome-main book basename))
24 (define SCROLLBAR-SIZE 20)
25 (define BUTTON-HEIGHT 25)
26 (define PANELS-HEIGHT 80)
28 (define PIXELS-PER-UNIT 2)
30 (define OUTPUT-SCALE (* 2.5 PIXELS-PER-UNIT))
31 (define-public output-scale OUTPUT-SCALE)
33 (define (stderr string . rest)
34 (apply format (cons (current-error-port) (cons string rest)))
35 (force-output (current-error-port)))
37 (define (debugf string . rest)
39 (apply stderr (cons string rest))))
41 (define-class <gnome-outputter> ()
42 (name #:init-value "untitled" #:init-keyword #:name #:accessor name)
45 (dragging #:init-value #f #:accessor dragging)
46 (drag-origin #:init-value #f #:accessor drag-origin)
47 (drag-location #:init-value #f #:accessor drag-location)
49 (page-stencils ;;#:init-value '#()
50 #:init-keyword #:page-stencils #:accessor page-stencils)
51 (window #:init-value (make <gtk-window> #:type 'toplevel) #:accessor window)
52 (scrolled #:init-value (make <gtk-scrolled-window>) #:accessor scrolled)
53 (canvas #:init-value #f #:accessor canvas)
54 (page-number #:init-value 0 #:accessor page-number)
55 (pixels-per-unit #:init-value PIXELS-PER-UNIT #:accessor pixels-per-unit)
56 (text-items #:init-value '() #:accessor text-items)
57 (grob #:init-value #f #:accessor grob)
58 (item-grobs #:init-value (make-hash-table 31) #:accessor item-grobs)
59 (window-width #:init-keyword #:window-width #:accessor window-width)
60 (window-height #:init-keyword #:window-height #:accessor window-height)
61 (canvas-width #:init-keyword #:canvas-width #:accessor canvas-width)
62 (canvas-height #:init-keyword #:canvas-height #:accessor canvas-height))
64 (define-method (initialize (go <gnome-outputter>))
65 (let* ((save (make <gtk-button> #:label "Save"))
66 (exit (make <gtk-button> #:label "Exit"))
67 (next (make <gtk-button> #:label "Next"))
68 (prev (make <gtk-button> #:label "Previous"))
69 (vbox (make <gtk-vbox> #:homogeneous #f))
70 (hbox (make <gtk-hbox> #:homogeneous #f)))
72 (set-size-request (window go) (window-width go) (window-height go))
74 (set-size-request (scrolled go) (window-width go) (- (window-height go)
80 (add (window go) vbox)
81 (add vbox (scrolled go))
83 (add (scrolled go) (canvas go))
87 (set-size-request hbox (window-width go) BUTTON-HEIGHT)
89 ;; hmm? These are broken when using <gnome-outputter>.
90 ;;(set-child-packing vbox hbox #f #f 0 'end)
91 ;;(set-child-packing hbox button #f #f 0 'end)
93 (set-size-request exit (quotient (window-width go) 2) BUTTON-HEIGHT)
102 (connect exit 'clicked (lambda (b) (gtk-main-quit)))
103 (connect save 'clicked (lambda (b) (save-tweaks go)))
104 (connect next 'clicked (lambda (b) (dump-page go (1+ (page-number go)))))
105 (connect prev 'clicked (lambda (b) (dump-page go (1- (page-number go)))))
106 (connect (window go) 'key-press-event
107 (lambda (w e) (key-press-event go w e)))
109 (show-all (window go))))
112 (define (gnome-main book name)
113 (let* ((paper (ly:paper-book-paper book))
114 (hsize (ly:output-def-lookup paper 'hsize))
115 (vsize (ly:output-def-lookup paper 'vsize))
116 (page-width (inexact->exact (ceiling (* OUTPUT-SCALE hsize))))
117 (page-height (inexact->exact (ceiling (* OUTPUT-SCALE vsize))))
118 ;;(page-width (inexact->exact (ceiling hsize)))
119 ;;(page-height (inexact->exact (ceiling vsize)))
121 (screen-width (gdk-screen-width))
122 (screen-height (gdk-screen-height))
123 (desktop-height (- screen-height PANELS-HEIGHT))
125 (go (make <gnome-outputter>
127 #:page-stencils (list->vector (ly:paper-book-pages book))
128 #:canvas-width page-width
129 #:canvas-height page-height
131 ;; huh, *2 -- pixels-per-unit?
132 (min (+ SCROLLBAR-SIZE (* page-width 2)) screen-width)
134 (min (+ BUTTON-HEIGHT SCROLLBAR-SIZE (* page-height 2))
137 ;; ugh. The GOOPS doc promises this is called automagically.
138 ;; possibly a goops 1.6.4 problem
145 (define (dump-page go number)
146 (if (or (not (page-stencils go))
148 (>= number (vector-length (page-stencils go))))
149 (stderr "No such page: ~S\n" (1+ number))
151 (let ((old-canvas (canvas go)))
153 (set! (page-number go) number)
155 ;; no destroy method for gnome-canvas-text yet.
156 ;;(map destroy (gtk-container-get-children main-canvas))
157 ;;(map destroy text-items)
159 (set! (text-items go) '())
160 (debugf "page-stencil ~S: ~S\n"
162 (vector-ref (page-stencils go) (page-number go)))
164 (ly:interpret-stencil-expression
165 ;; ;;(vector-ref (page-stencils go) (page-number go))
166 (ly:stencil-expr (vector-ref (page-stencils go) (page-number go)))
167 gnome-output-expression go '(0 . 0))
169 (if old-canvas (destroy old-canvas))
170 (add (scrolled go) (canvas go))
171 (show (canvas go)))))
174 (define (get-x-editor)
176 (set! x-editor (getenv "XEDITOR")))
182 (set! ifs (getenv "IFS")))
187 (define (spawn-editor location)
188 (let* ((file-name (car location))
189 (line (cadr location))
190 (column (caddr location))
191 (template (substring (get-x-editor) 0))
193 ;; Adhere to %l %c %f?
195 (regexp-substitute/global
196 #f "%l" (regexp-substitute/global
198 (regexp-substitute/global
199 #f "%f" template 'pre file-name 'post)
200 'pre (number->string column)
202 'pre (number->string line) 'post)))
204 (debugf "spawning: ~s\n" command)
205 (if (= (primitive-fork) 0)
206 (let ((command-list (string-split command #\ )));; (get-ifs))))
207 (apply execlp command-list)
210 (define location-callback spawn-editor)
212 (define (get-location grob)
213 (and-let* ((p? (procedure? point-and-click))
215 (cause (ly:grob-property grob 'cause))
216 (music-origin (if (ly:music? cause)
217 (ly:music-property cause 'origin)
218 ;; How come #<unspecied> [and '()]
221 (if (ly:input-location? music-origin)
222 (ly:input-location music-origin)
226 (define-method (tweak (go <gnome-outputter>) item offset)
227 (let* ((grob (hashq-ref (item-grobs go) item #f))
228 (extra-offset (ly:grob-property grob 'extra-offset))
229 (origin (if (null? extra-offset) '(0 . 0)
230 (cons (car extra-offset)
231 (- 0 (cdr extra-offset))))))
234 (ly:insert-tweak grob (list tweak-grob-property
236 (offset-add origin offset))))))
238 (define-method (save-tweaks (go <gnome-outputter>))
240 ((dumper (ly:make-dumper))
241 (tweaks (ly:all-tweaks))
242 (serialized-tweaks (map
246 (ly:dumper-key-serial dumper (car tweak))
247 (list 'unquote (procedure-name (cadr tweak))))
251 (if (not (null? serialized-tweaks))
252 (let ((file (open-file (string-append (name go) ".twy") "w")))
254 ";;;tweaks. Generated file. Do not edit.
255 (ly:tweak-clear-registry)
256 (ly:tweak-define-keys `~S)
257 (ly:tweak-define-tweaks `~S)"
258 (ly:dumper-definitions dumper)
259 serialized-tweaks)))))
261 ;;;(define (item-event go grob item event)
262 (define (item-event go item event)
263 ;;(stderr "EVENT: ~S\n" event)
264 ;;(stderr "TYPE: ~S\n" (gdk-event:type event))
265 (case (gdk-event:type event)
266 ((enter-notify) (gobject-set-property item 'fill-color "red"))
267 ((leave-notify) (gobject-set-property item 'fill-color "black"))
268 ((motion-notify) (if (ly:grob? (dragging go))
269 (let ((x (gdk-event-motion:x event))
270 (y (gdk-event-motion:y event))
272 (r (drag-location go)))
273 ;;(stderr "MOVED AT: ~S ~S\n" x y)
274 (move item (/ (- x (car r)) s) (/ (- y (cdr r)) s))
275 (set! (drag-location go) (cons x y)))))
276 ((button-release) (if (ly:grob? (dragging go))
277 (let ((x (gdk-event-button:x event))
278 (y (gdk-event-button:y event))
281 (r (drag-location go)))
282 (move item (/ (- x (car r)) s) (/ (- y (cdr r)) s))
283 (set! (drag-location go) #f)
284 (set! (drag-origin go) #f)
285 (stderr "RELEASE at: ~S ~S\n" x y)
286 (set! (dragging go) #f)
287 (tweak go item (cons (/ (- x (car o)) s)
288 (/ (- y (cdr o)) s))))))
290 (let ((button (gdk-event-button:button event)))
293 (if (null? (gdk-event-button:modifiers event))
294 (let ((x (gdk-event-button:x event))
295 (y (gdk-event-button:y event)))
296 (stderr "CLICK at: ~S ~S\n" x y)
297 (set! (dragging go) (hashq-ref (item-grobs go) item #f))
298 (set! (drag-origin go) (cons x y))
299 (set! (drag-location go) (cons x y)))
301 (stderr "CLICK WITH MODIFIERS: ~S\n"
302 (gdk-event-button:modifiers event))
304 ;; some modifier, do jump to source
305 (and-let* ((grob (hashq-ref (item-grobs go) item #f))
306 (location (get-location grob)))
307 (location-callback location)))))
310 ((grob (hashq-ref (item-grobs go) item #f)))
312 (let ((properties (ly:grob-properties grob))
313 (basic-properties (ly:grob-basic-properties grob))
314 (x (inexact->exact (gdk-event-button:x-root event)))
315 (y (inexact->exact (gdk-event-button:y-root event))))
317 (debugf "GROB: ~S\n" grob)
318 (debugf "PROPERTIES: ~S\n" properties)
319 (debugf "BASIC PROPERTIES: ~S\n" basic-properties)
321 ;; FIXME: dialog iso window?
322 ;; http://www.gtk.org/tutorial/sec-textentries.html
323 (let ((window (make <gtk-window>))
324 (vbox (make <gtk-vbox>))
325 (ok (make <gtk-button> #:label "Ok")))
328 (connect ok 'clicked (lambda (b) (destroy window)))
332 (let ((label (make <gtk-label>
333 ;;#:label (symbol->string (car x))))
334 #:label (format #f "~S" (car x))))
335 ;;(symbol->string (car x))))
336 (entry (make <gtk-entry>
337 #:text (format #f "~S" (cdr x))))
338 (hbox (make <gtk-hbox>)))
341 (set-size-request label 150 BUTTON-HEIGHT)
343 (append properties basic-properties))
347 (move window x y))))))))
349 ((2button-press) (gobject-set-property item 'fill-color "green"))
351 (let ((keyval (gdk-event-key:keyval event))
352 (mods (gdk-event-key:modifiers event))
353 (step (quotient (pixels-per-unit go) 2)))
354 (cond ((and (null? mods)
356 (tweak go item (cons 0 (- 0 step))))
358 (eq? keyval gdk:Down))
359 (tweak go item (cons 0 step)))
361 (eq? keyval gdk:Left))
362 (tweak go item (cons (- 0 step) 0)))
364 (eq? keyval gdk:Right))
365 (tweak go item (cons step 0)))))))
368 (define (scale-canvas go factor)
369 (set! (pixels-per-unit go) (* (pixels-per-unit go) factor))
370 (set-pixels-per-unit (canvas go) (pixels-per-unit go))
373 (let ((scale (gobject-get-property x 'scale))
374 (points (gobject-get-property x 'size-points)))
375 ;;(gobject-set-property x 'scale pixels-per-unit)
376 (gobject-set-property x 'size-points (* points factor))))
379 (define (key-press-event go item event)
380 (let ((keyval (gdk-event-key:keyval event))
381 (mods (gdk-event-key:modifiers event)))
382 (cond ((and (or (eq? keyval gdk:q)
384 (equal? mods '(control-mask modifier-mask)))
386 ((and #t ;;(null? mods)
387 (eq? keyval gdk:plus))
389 ((and #t ;; (null? mods)
390 (eq? keyval gdk:minus))
391 (scale-canvas go 0.5))
392 ((or (eq? keyval gdk:Page-Up)
393 (eq? keyval gdk:BackSpace))
394 (dump-page go (1- (page-number go))))
395 ((or (eq? keyval gdk:Page-Down)
396 (eq? keyval gdk:space))
397 (dump-page go (1+ (page-number go)))))
400 (define (new-canvas go)
401 (set! (canvas go) (make <gnome-canvas>))
402 (set-size-request (canvas go) (window-width go) (window-height go))
403 (set-scroll-region (canvas go) 0 0 (canvas-width go) (canvas-height go))
404 (set-pixels-per-unit (canvas go) (pixels-per-unit go))
405 (make <gnome-canvas-rect>
406 #:parent (root (canvas go))
407 #:x2 (canvas-width go) #:y2 (canvas-height go)
408 #:fill-color "white"))
410 (define output-gnome-module #f)
411 (define (get-output-gnome-module go)
412 (if (not output-gnome-module)
413 (let ((m (resolve-module '(scm output-gnome))))
414 (module-define! m 'canvas-root (lambda () (root (canvas go))))
415 (module-define! m 'output-scale output-scale)
416 (set! output-gnome-module m)))
419 (define-public (gnome-output-expression go expr)
420 (let* ((m (get-output-gnome-module go))
421 (result (eval expr m)))
423 ((ly:grob? result) (set! (grob go) result))
424 ((is-a? result <gnome-canvas-item>)
426 ;; AAARGH; grobs happen after stencils
427 ;; (connect result 'event (lambda (w e) (item-event go (grob go) w e)))
428 (connect result 'event (lambda (w e) (item-event go w e)))
430 (hashq-set! (item-grobs go) result (grob go)))
433 (if (is-a? result <gnome-canvas-text>)
434 (set! (text-items go) (cons result (text-items go))))))))