1 ;;;; framework-gnome.scm --
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 2004--2005 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 basename book scopes fields )
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 (debugf string . rest)
35 (apply stderr (cons string rest))))
37 (define-class <gnome-outputter> ()
38 (name #:init-value "untitled" #:init-keyword #:name #:accessor name)
41 (dragging #:init-value #f #:accessor dragging)
42 (drag-origin #:init-value #f #:accessor drag-origin)
43 (drag-location #:init-value #f #:accessor drag-location)
45 (page-stencils ;;#:init-value '#()
46 #:init-keyword #:page-stencils #:accessor page-stencils)
47 (window #:init-value (make <gtk-window> #:type 'toplevel) #:accessor window)
48 (scrolled #:init-value (make <gtk-scrolled-window>) #:accessor scrolled)
49 (canvas #:init-value #f #:accessor canvas)
50 (page-number #:init-value 0 #:accessor page-number)
51 (pixels-per-unit #:init-value PIXELS-PER-UNIT #:accessor pixels-per-unit)
52 (text-items #:init-value '() #:accessor text-items)
53 (grob #:init-value #f #:accessor grob)
54 (item-grobs #:init-value (make-hash-table 31) #:accessor item-grobs)
55 (window-width #:init-keyword #:window-width #:accessor window-width)
56 (window-height #:init-keyword #:window-height #:accessor window-height)
57 (canvas-width #:init-keyword #:canvas-width #:accessor canvas-width)
58 (canvas-height #:init-keyword #:canvas-height #:accessor canvas-height))
60 (define-method (initialize (go <gnome-outputter>))
61 (let* ((save (make <gtk-button> #:label "Save"))
62 (exit (make <gtk-button> #:label "Exit"))
63 (next (make <gtk-button> #:label "Next"))
64 (prev (make <gtk-button> #:label "Previous"))
65 (vbox (make <gtk-vbox> #:homogeneous #f))
66 (hbox (make <gtk-hbox> #:homogeneous #f)))
68 (set-size-request (window go) (window-width go) (window-height go))
70 (set-size-request (scrolled go) (window-width go) (- (window-height go)
76 (add (window go) vbox)
77 (add vbox (scrolled go))
79 (add (scrolled go) (canvas go))
83 (set-size-request hbox (window-width go) BUTTON-HEIGHT)
85 ;; hmm? These are broken when using <gnome-outputter>.
86 ;;(set-child-packing vbox hbox #f #f 0 'end)
87 ;;(set-child-packing hbox button #f #f 0 'end)
89 (set-size-request exit (quotient (window-width go) 2) BUTTON-HEIGHT)
98 (connect exit 'clicked (lambda (b) (gtk-main-quit)))
99 (connect save 'clicked (lambda (b) (save-tweaks go)))
100 (connect next 'clicked (lambda (b) (dump-page go (1+ (page-number go)))))
101 (connect prev 'clicked (lambda (b) (dump-page go (1- (page-number go)))))
102 (connect (window go) 'key-press-event
103 (lambda (w e) (key-press-event go w e)))
105 (show-all (window go))))
108 (define (gnome-main book name)
109 (let* ((paper (ly:paper-book-paper book))
110 (hsize (ly:output-def-lookup paper 'hsize))
111 (vsize (ly:output-def-lookup paper 'vsize))
112 (page-width (inexact->exact (ceiling (* OUTPUT-SCALE hsize))))
113 (page-height (inexact->exact (ceiling (* OUTPUT-SCALE vsize))))
114 ;;(page-width (inexact->exact (ceiling hsize)))
115 ;;(page-height (inexact->exact (ceiling vsize)))
117 (screen-width (gdk-screen-width))
118 (screen-height (gdk-screen-height))
119 (desktop-height (- screen-height PANELS-HEIGHT))
121 (go (make <gnome-outputter>
123 #:page-stencils (list->vector (ly:paper-book-pages book))
124 #:canvas-width page-width
125 #:canvas-height page-height
127 ;; huh, *2 -- pixels-per-unit?
128 (min (+ SCROLLBAR-SIZE (* page-width 2)) screen-width)
130 (min (+ BUTTON-HEIGHT SCROLLBAR-SIZE (* page-height 2))
133 ;; ugh. The GOOPS doc promises this is called automagically.
134 ;; possibly a goops 1.6.4 problem
141 (define (dump-page go number)
142 (if (or (not (page-stencils go))
144 (>= number (vector-length (page-stencils go))))
145 (stderr "No such page: ~S\n" (1+ number))
147 (let ((old-canvas (canvas go)))
149 (set! (page-number go) number)
151 ;; no destroy method for gnome-canvas-text yet.
152 ;;(map destroy (gtk-container-get-children main-canvas))
153 ;;(map destroy text-items)
155 (set! (text-items go) '())
156 (debugf "page-stencil ~S: ~S\n"
158 (vector-ref (page-stencils go) (page-number go)))
160 (ly:interpret-stencil-expression
161 ;; ;;(vector-ref (page-stencils go) (page-number go))
162 (ly:stencil-expr (vector-ref (page-stencils go) (page-number go)))
163 gnome-output-expression go '(0 . 0))
165 (if old-canvas (destroy old-canvas))
166 (add (scrolled go) (canvas go))
167 (show (canvas go)))))
172 (set! ifs (getenv "IFS")))
177 (define (spawn-editor location)
178 (let* ((file-name (car location))
179 (line (cadr location))
180 (char (caddr location))
181 (column (cadddr location))
182 (command (get-editor-command file line char column)))
183 (debugf "spawning: ~s\n" command)
184 (if (= (primitive-fork) 0)
185 (let ((command-list (string-split command #\ )));; (get-ifs))))
186 (apply execlp command-list)
189 (define location-callback spawn-editor)
191 (define (get-location grob)
192 (and-let* ((p? (procedure? point-and-click))
194 (cause (ly:grob-property grob 'cause))
195 (music-origin (if (ly:music? cause)
196 (ly:music-property cause 'origin)
197 ;; How come #<unspecied> [and '()]
200 (if (ly:input-location? music-origin)
201 (ly:input-location music-origin)
204 ;; todo: how to integrate nicely?
205 ;(define-public (tweak-grob-property grob sym val)
206 ; (set! (ly:grob-property grob sym) val))
209 (define-method (tweak (go <gnome-outputter>) item offset)
210 (let* ((grob (hashq-ref (item-grobs go) item #f))
211 (extra-offset (ly:grob-property grob 'extra-offset))
212 (origin (if (null? extra-offset) '(0 . 0)
213 (offset-flip-y extra-offset))))
216 (ly:grob-replace-tweak
217 grob (list tweak-grob-property
219 (offset-flip-y (offset-add origin offset)))))))
221 (define-method (save-tweaks (go <gnome-outputter>))
222 (let* ((dumper (ly:make-dumper))
223 (tweaks (ly:all-tweaks))
226 (lambda (tweak) (append
227 (list (ly:dumper-key-serial dumper (car tweak))
228 (list 'unquote (procedure-name (cadr tweak))))
232 (if (not (null? serialized-tweaks))
233 (let ((file (open-file (string-append (name go) ".twy") "w")))
235 ";;;tweaks. Generated file. Do not edit.
236 (ly:tweak-clear-registry)
237 (ly:tweak-define-keys `~S)
238 (ly:tweak-define-tweaks `~S)"
239 (ly:dumper-definitions dumper)
240 serialized-tweaks)))))
242 ;;;(define (item-event go grob item event)
243 (define (item-event go item event)
244 ;;(stderr "EVENT: ~S\n" event)
245 ;;(stderr "TYPE: ~S\n" (gdk-event:type event))
246 (case (gdk-event:type event)
247 ((enter-notify) (gobject-set-property item 'fill-color "red"))
248 ((leave-notify) (gobject-set-property item 'fill-color "black"))
249 ((motion-notify) (if (ly:grob? (dragging go))
250 (let ((x (gdk-event-motion:x event))
251 (y (gdk-event-motion:y event))
253 (r (drag-location go)))
254 ;;(stderr "MOVED AT: ~S ~S\n" x y)
255 (move item (/ (- x (car r)) s) (/ (- y (cdr r)) s))
256 (set! (drag-location go) (cons x y)))))
257 ((button-release) (if (ly:grob? (dragging go))
258 (let ((x (gdk-event-button:x event))
259 (y (gdk-event-button:y event))
262 (r (drag-location go)))
263 (move item (/ (- x (car r)) s) (/ (- y (cdr r)) s))
264 (set! (drag-location go) #f)
265 (set! (drag-origin go) #f)
266 (stderr "RELEASE at: ~S ~S\n" x y)
267 (set! (dragging go) #f)
268 (tweak go item (cons (/ (- x (car o)) s)
269 (/ (- y (cdr o)) s))))))
271 (let ((button (gdk-event-button:button event)))
274 (if (null? (gdk-event-button:modifiers event))
275 (let ((x (gdk-event-button:x event))
276 (y (gdk-event-button:y event)))
277 (stderr "CLICK at: ~S ~S\n" x y)
278 (set! (dragging go) (hashq-ref (item-grobs go) item #f))
279 (set! (drag-origin go) (cons x y))
280 (set! (drag-location go) (cons x y)))
282 (stderr "CLICK WITH MODIFIERS: ~S\n"
283 (gdk-event-button:modifiers event))
285 ;; some modifier, do jump to source
286 (and-let* ((grob (hashq-ref (item-grobs go) item #f))
287 (location (get-location grob)))
288 (location-callback location)))))
290 (and-let* ((grob (hashq-ref (item-grobs go) item #f)))
292 (let ((properties (ly:grob-properties grob))
293 (basic-properties (ly:grob-basic-properties grob))
294 (x (inexact->exact (gdk-event-button:x-root event)))
295 (y (inexact->exact (gdk-event-button:y-root event))))
297 (debugf "GROB: ~S\n" grob)
298 (debugf "PROPERTIES: ~S\n" properties)
299 (debugf "BASIC PROPERTIES: ~S\n" basic-properties)
301 ;; FIXME: dialog iso window?
302 ;; http://www.gtk.org/tutorial/sec-textentries.html
303 (let ((window (make <gtk-window>))
304 (vbox (make <gtk-vbox>))
305 (ok (make <gtk-button> #:label "Ok")))
308 (connect ok 'clicked (lambda (b) (destroy window)))
312 (let ((label (make <gtk-label>
313 ;;#:label (symbol->string (car x))))
314 #:label (format #f "~S" (car x))))
315 ;;(symbol->string (car x))))
316 (entry (make <gtk-entry>
317 #:text (format #f "~S" (cdr x))))
318 (hbox (make <gtk-hbox>)))
321 (set-size-request label 150 BUTTON-HEIGHT)
323 (append properties basic-properties))
327 (move window x y))))))))
329 ((2button-press) (gobject-set-property item 'fill-color "green"))
331 (let ((keyval (gdk-event-key:keyval event))
332 (mods (gdk-event-key:modifiers event))
333 (step (quotient (pixels-per-unit go) 2)))
334 (cond ((and (null? mods)
336 (tweak go item (cons 0 (- 0 step))))
338 (eq? keyval gdk:Down))
339 (tweak go item (cons 0 step)))
341 (eq? keyval gdk:Left))
342 (tweak go item (cons (- 0 step) 0)))
344 (eq? keyval gdk:Right))
345 (tweak go item (cons step 0)))))))
348 (define (scale-canvas go factor)
349 (set! (pixels-per-unit go) (* (pixels-per-unit go) factor))
350 (set-pixels-per-unit (canvas go) (pixels-per-unit go))
353 (let ((scale (gobject-get-property x 'scale))
354 (points (gobject-get-property x 'size-points)))
355 ;;(gobject-set-property x 'scale pixels-per-unit)
356 (gobject-set-property x 'size-points (* points factor))))
359 (define (key-press-event go item event)
360 (let ((keyval (gdk-event-key:keyval event))
361 (mods (gdk-event-key:modifiers event)))
362 (cond ((and (or (eq? keyval gdk:q)
364 (equal? mods '(control-mask modifier-mask)))
366 ((and (eq? keyval gdk:s)
367 (equal? mods '(control-mask modifier-mask)))
369 ((and #t ;;(null? mods)
370 (eq? keyval gdk:plus))
372 ((and #t ;; (null? mods)
373 (eq? keyval gdk:minus))
374 (scale-canvas go 0.5))
375 ((or (eq? keyval gdk:Page-Up)
376 (eq? keyval gdk:BackSpace))
377 (dump-page go (1- (page-number go))))
378 ((or (eq? keyval gdk:Page-Down)
379 (eq? keyval gdk:space))
380 (dump-page go (1+ (page-number go)))))
383 (define (new-canvas go)
384 (set! (canvas go) (make <gnome-canvas>))
385 (set-size-request (canvas go) (window-width go) (window-height go))
386 (set-scroll-region (canvas go) 0 0 (canvas-width go) (canvas-height go))
387 (set-pixels-per-unit (canvas go) (pixels-per-unit go))
388 (make <gnome-canvas-rect>
389 #:parent (root (canvas go))
390 #:x2 (canvas-width go) #:y2 (canvas-height go)
391 #:fill-color "white"))
393 (define output-gnome-module #f)
394 (define (get-output-gnome-module go)
395 (if (not output-gnome-module)
396 (let ((m (resolve-module '(scm output-gnome))))
397 (module-define! m 'canvas-root (lambda () (root (canvas go))))
398 (module-define! m 'output-scale output-scale)
399 (set! output-gnome-module m)))
402 (define-public (gnome-output-expression go expr)
403 (let* ((m (get-output-gnome-module go))
404 (result (eval expr m)))
406 ((ly:grob? result) (set! (grob go) result))
407 ((is-a? result <gnome-canvas-item>)
409 ;; AAARGH; grobs happen after stencils
410 ;; (connect result 'event (lambda (w e) (item-event go (grob go) w e)))
411 (connect result 'event (lambda (w e) (item-event go w e)))
413 (hashq-set! (item-grobs go) result (grob go)))
416 (if (is-a? result <gnome-canvas-text>)
417 (set! (text-items go) (cons result (text-items go))))))))