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)
29 (define OUTPUT-SCALE (* 2.5 PIXELS-PER-UNIT))
30 (define-public output-scale OUTPUT-SCALE)
32 (define (stderr string . rest)
33 (apply format (cons (current-error-port) (cons string rest)))
34 (force-output (current-error-port)))
36 (define (debugf string . rest)
38 (stderr (cons string rest))))
40 (define-class <gnome-outputter> ()
41 (name #:init-value "untitled" #:init-keyword #:name #:accessor name)
42 (dragging #:init-value #f #:accessor dragging)
43 (drag-origin #:init-value #f #:accessor drag-origin)
44 (page-stencils ;;#:init-value '#()
45 #:init-keyword #:page-stencils #:accessor page-stencils)
46 (window #:init-value (make <gtk-window> #:type 'toplevel) #:accessor window)
47 (scrolled #:init-value (make <gtk-scrolled-window>) #:accessor scrolled)
48 (canvas #:init-value #f #:accessor canvas)
49 (page-number #:init-value 0 #:accessor page-number)
50 (pixels-per-unit #:init-value PIXELS-PER-UNIT #:accessor pixels-per-unit)
51 (text-items #:init-value '() #:accessor text-items)
52 (grob #:init-value #f #:accessor grob)
53 (item-grobs #:init-value (make-hash-table 31) #:accessor item-grobs)
54 (grob-tweaks #:init-value (make-hash-table 31) #:accessor grob-tweaks)
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
137 (map ly:pango-add-afm-decoder
141 "lilypond-parmesan"))
147 (define (dump-page go number)
148 (if (or (not (page-stencils go))
150 (>= number (vector-length (page-stencils go))))
151 (stderr "No such page: ~S\n" (1+ number))
153 (let ((old-canvas (canvas go)))
155 (set! (page-number go) number)
157 ;; no destroy method for gnome-canvas-text yet.
158 ;;(map destroy (gtk-container-get-children main-canvas))
159 ;;(map destroy text-items)
161 (set! (text-items go) '())
162 (debugf "page-stencil ~S: ~S\n"
164 (vector-ref (page-stencils go) (page-number go)))
166 (ly:interpret-stencil-expression
167 ;; ;;(vector-ref (page-stencils go) (page-number go))
168 (ly:stencil-expr (vector-ref (page-stencils go) (page-number go)))
169 gnome-output-expression go '(0 . 0))
171 (if old-canvas (destroy old-canvas))
172 (add (scrolled go) (canvas go))
173 (show (canvas go)))))
176 (define (get-x-editor)
178 (set! x-editor (getenv "XEDITOR")))
184 (set! ifs (getenv "IFS")))
189 (define (spawn-editor location)
190 (let* ((file-name (car location))
191 (line (cadr location))
192 (column (caddr location))
193 (template (substring (get-x-editor) 0))
195 ;; Adhere to %l %c %f?
197 (regexp-substitute/global
198 #f "%l" (regexp-substitute/global
200 (regexp-substitute/global
201 #f "%f" template 'pre file-name 'post)
202 'pre (number->string column)
204 'pre (number->string line) 'post)))
206 (debugf "spawning: ~s\n" command)
207 (if (= (primitive-fork) 0)
208 (let ((command-list (string-split command #\ )));; (get-ifs))))
209 (apply execlp command-list)
212 (define location-callback spawn-editor)
214 (define (get-location grob)
215 (and-let* ((p? (procedure? point-and-click))
217 (cause (ly:grob-property grob 'cause))
218 (music-origin (if (ly:music? cause)
219 (ly:music-property cause 'origin)
220 ;; How come #<unspecied> [and '()]
223 (if (ly:input-location? music-origin)
224 (ly:input-location music-origin)
227 (define-method (tweak (go <gnome-outputter>) item offset)
228 (let* ((grob (hashq-ref (item-grobs go) item #f))
229 (extra-offset (ly:grob-property grob 'extra-offset))
230 (origin (if (null? extra-offset) '(0 . 0)
231 (cons (car extra-offset)
232 (- 0 (cdr extra-offset))))))
234 (hashq-set! (grob-tweaks go) grob (cons (+ (car origin) (car offset))
235 (+ (cdr origin) (cdr offset)))))
236 (move item (car offset) (cdr offset))))
238 (define-method (save-tweaks (go <gnome-outputter>))
239 (let ;;((file (current-error-port)))
240 ((file (open-file (string-append (name go) ".ly.t") "w")))
241 (format file ";;; TWEAKS \n")
242 (format file ";;(define grob-id-tweak-alist \n'(\n")
244 (lambda (key value seed)
245 (format file "(~S extra-offset ~S)\n"
246 (if (ly:grob? key) (ly:grob-id key) ";;unidentified grob")
249 (format file ")\n;;)\n")))
251 ;;;(define (item-event go grob item event)
252 (define (item-event go item event)
253 ;;(stderr "EVENT: ~S\n" event)
254 ;;(stderr "TYPE: ~S\n" (gdk-event:type event))
255 (case (gdk-event:type event)
256 ((enter-notify) (gobject-set-property item 'fill-color "red"))
257 ((leave-notify) (gobject-set-property item 'fill-color "black"))
258 ((motion-notify) (if (ly:grob? (dragging go))
259 ;; FIXME: wrap gdk-event-motion:*
260 ;;(stderr "MOVE TO: \n")))
262 ((button-release) (if (ly:grob? (dragging go))
263 (let ((x (gdk-event-button:x event))
264 (y (gdk-event-button:y event))
265 (s (pixels-per-unit go))
266 (o (drag-origin go)))
267 (stderr "RELEASE at: ~S ~S\n" x y)
268 (set! (dragging go) #f)
269 (tweak go item (cons (/ (- x (car o)) s)
270 (/ (- y (cdr o)) s))))))
272 (let ((button (gdk-event-button:button event)))
275 ;; FIXME: wrap gdk-event-button:state (== modifiers)
276 ;;(if (null? (gdk-event-button:state event))
277 (let ((x (gdk-event-button:x event))
278 (y (gdk-event-button:y event)))
279 (stderr "CLICK at: ~S ~S\n" x y)
280 (set! (dragging go) (hashq-ref (item-grobs go) item #f))
281 (set! (drag-origin go) (cons x y))))
283 ;; some modifier, do jump to source
284 (and-let* ((grob (hashq-ref (item-grobs go) item #f))
285 (location (get-location grob)))
286 (location-callback location)))
289 ((grob (hashq-ref (item-grobs go) item #f)))
291 (let ((properties (ly:grob-properties grob))
292 (basic-properties (ly:grob-basic-properties grob))
293 (id (ly:grob-id 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 (let ((window (make <gtk-window>))
302 (vbox (make <gtk-vbox>))
303 (button (make <gtk-button> #:label "Ok")))
306 (connect button 'clicked (lambda (b) (destroy window)))
310 (let ((button (make <gtk-button>
314 (symbol->string (car x))
316 (format #f "~S" (cdr x))))))
317 (set-size-request button 150 BUTTON-HEIGHT)
319 (cons (list id) properties))
322 ;; FIXME: how to do window placement?
326 ;; - shows actual movement:
330 ((2button-press) (gobject-set-property item 'fill-color "green"))
332 (let ((keyval (gdk-event-key:keyval event))
333 (mods (gdk-event-key:modifiers event))
334 (step (quotient (pixels-per-unit go) 2)))
335 (cond ((and (null? mods)
337 (tweak go item (cons 0 (- 0 step))))
339 (eq? keyval gdk:Down))
340 (tweak go item (cons 0 step)))
342 (eq? keyval gdk:Left))
343 (tweak go item (cons (- 0 step) 0)))
345 (eq? keyval gdk:Right))
346 (tweak go item (cons step 0)))))))
349 (define (scale-canvas go factor)
350 (set! (pixels-per-unit go) (* (pixels-per-unit go) factor))
351 (set-pixels-per-unit (canvas go) (pixels-per-unit go))
354 (let ((scale (gobject-get-property x 'scale))
355 (points (gobject-get-property x 'size-points)))
356 ;;(gobject-set-property x 'scale pixels-per-unit)
357 (gobject-set-property x 'size-points (* points factor))))
360 (define (key-press-event go item event)
361 (let ((keyval (gdk-event-key:keyval event))
362 (mods (gdk-event-key:modifiers event)))
363 (cond ((and (or (eq? keyval gdk:q)
365 (equal? mods '(control-mask modifier-mask)))
367 ((and #t ;;(null? mods)
368 (eq? keyval gdk:plus))
370 ((and #t ;; (null? mods)
371 (eq? keyval gdk:minus))
372 (scale-canvas go 0.5))
373 ((or (eq? keyval gdk:Page-Up)
374 (eq? keyval gdk:BackSpace))
375 (dump-page go (1- (page-number go))))
376 ((or (eq? keyval gdk:Page-Down)
377 (eq? keyval gdk:space))
378 (dump-page go (1+ (page-number go)))))
381 (define (new-canvas go)
382 (set! (canvas go) (make <gnome-canvas>))
383 (set-size-request (canvas go) (window-width go) (window-height go))
384 (set-scroll-region (canvas go) 0 0 (canvas-width go) (canvas-height go))
385 (set-pixels-per-unit (canvas go) (pixels-per-unit go))
386 (make <gnome-canvas-rect>
387 #:parent (root (canvas go))
388 #:x2 (canvas-width go) #:y2 (canvas-height go)
389 #:fill-color "white"))
391 (define output-gnome-module #f)
392 (define (get-output-gnome-module go)
393 (if (not output-gnome-module)
394 (let ((m (resolve-module '(scm output-gnome))))
395 (module-define! m 'canvas-root (lambda () (root (canvas go))))
396 (module-define! m 'output-scale output-scale)
397 (set! output-gnome-module m)))
400 (define-public (gnome-output-expression go expr)
401 (let* ((m (get-output-gnome-module go))
402 (result (eval expr m)))
404 ((ly:grob? result) (set! (grob go) result))
405 ((is-a? result <gnome-canvas-item>)
407 ;; AAARGH; grobs happen after stencils
408 ;; (connect result 'event (lambda (w e) (item-event go (grob go) w e)))
409 (connect result 'event (lambda (w e) (item-event go w e)))
411 (hashq-set! (item-grobs go) result (grob go)))
414 (if (is-a? result <gnome-canvas-text>)
415 (set! (text-items go) (cons result (text-items go))))))))